Updated on 2024/03/27

写真a

 
IWAMI Shingo
 
Organization
Graduate School of Science Professor
Graduate School
Graduate School of Science
Undergraduate School
School of Science Department of Biological Science
Title
Professor

Degree 1

  1. 博士(理学) ( 2009.3   静岡大学 ) 

Research Interests 3

  1. コンピュータシミュレーション

  2. 数理モデル

  3. 異分野融合生物学

Research Areas 2

  1. Others / Others  / 応用数学・統計数学

  2. Others / Others  / 超分子機能学

Research History 4

  1. Nagoya University   Graduate School of Science Division of Biological Science Supramolecular Biology   Professor

    2021.4

  2. Kyushu University

    2021.4

  3. 公益財団法人がん研究会   客員研究員

    2020.4

  4. Kyoto University

    2020.4

 

Papers 48

  1. Anti-HTLV-1 immunity combined with proviral load as predictive biomarkers for adult T-cell leukemia-lymphoma

    Yamada, A; Yasunaga, J; Liang, LH; Zhang, WY; Sunagawa, J; Nakaoka, S; Iwami, S; Kogure, Y; Ito, Y; Kataoka, K; Nakagawa, M; Iwanaga, M; Utsunomiya, A; Koh, KR; Watanabe, T; Nosaka, K; Matsuoka, M

    CANCER SCIENCE   Vol. 115 ( 1 ) page: 310 - 320   2024.1

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    Human T-cell leukemia virus type 1 (HTLV-1) establishes chronic infection in humans and induces a T-cell malignancy called adult T-cell leukemia-lymphoma (ATL) and several inflammatory diseases such as HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Persistent HTLV-1 infection is established under the pressure of host immunity, and therefore the immune response against HTLV-1 is thought to reflect the status of the disease it causes. Indeed, it is known that cellular immunity against viral antigens is suppressed in ATL patients compared to HAM/TSP patients. In this study, we show that profiling the humoral immunity to several HTLV-1 antigens, such as Gag, Env, and Tax, and measuring proviral load are useful tools for classifying disease status and predicting disease development. Using targeted sequencing, we found that several carriers whom this profiling method predicted to be at high risk for developing ATL indeed harbored driver mutations of ATL. The clonality of HTLV-1-infected cells in those carriers was still polyclonal; it is consistent with an early stage of leukemogenesis. Furthermore, this study revealed significance of anti-Gag proteins to predict high risk group in HTLV-1 carriers. Consistent with this finding, anti-Gag cytotoxic T lymphocytes (CTLs) were increased in patients who received hematopoietic stem cell transplantation and achieved remission state, indicating the significance of anti-Gag CTLs for disease control. Our findings suggest that our strategy that combines anti-HTLV-1 antibodies and proviral load may be useful for prediction of the development of HTLV-1-associated diseases.

    DOI: 10.1111/cas.15997

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  2. Infectious virus shedding duration reflects secretory IgA antibody response latency after SARS-CoV-2 infection

    Miyamoto, S; Nishiyama, T; Ueno, A; Park, H; Kanno, T; Nakamura, N; Ozono, S; Aihara, K; Takahashi, K; Tsuchihashi, Y; Ishikane, M; Arashiro, T; Saito, S; Ainai, A; Hirata, Y; Iida, S; Katano, H; Tobiume, M; Tokunaga, K; Fujimoto, T; Suzuki, M; Nagashima, M; Nakagaw, H; Narita, M; Kato, Y; Igari, H; Fujita, K; Kato, T; Hiyama, K; Shindou, K; Adachi, T; Fukushima, K; Nakamura-Uchiyama, F; Hase, R; Yoshimura, Y; Yamato, M; Nozaki, Y; Ohmagari, N; Suzuki, M; Saito, T; Iwami, S; Suzuki, T

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   Vol. 120 ( 52 ) page: e2314808120   2023.12

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    Infectious virus shedding from individuals infected with severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) is used to estimate human-to-human transmission risk. Control of SARS-CoV-2 transmission requires identifying the immune correlates that protect infectious virus shedding. Mucosal immunity prevents infection by SARS-CoV-2, which replicates in the respiratory epithelium and spreads rapidly to other hosts. However, whether mucosal immunity prevents the shedding of the infectious virus in SARS-CoV-2-infected individuals is unknown. We examined the relationship between viral RNA shedding dynamics, duration of infectious virus shedding, and mucosal antibody responses during SARS-CoV-2 infection. Anti-spike secretory IgA antibodies (S-IgA) reduced viral RNA load and infectivity more than anti-spike IgG/IgA antibodies in infected nasopharyngeal samples. Compared with the IgG/IgA response, the anti-spike S-IgA post-infection responses affected the viral RNA shedding dynamics and predicted the duration of infectious virus shedding regardless of the immune history. These findings highlight the importance of anti-spike S-IgA responses in individuals infected with SARS-CoV-2 for preventing infectious virus shedding and SARS-CoV-2 transmission. Developing medical countermeasures to shorten S-IgA response time may help control human-to-human transmission of SARS-CoV-2 infection and prevent future respiratory virus pandemics.

    DOI: 10.1073/pnas.2314808120

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  3. Modeling COVID-19 vaccine booster-elicited antibody response and impact of infection history

    Nishiyama, T; Miyamatsu, Y; Park, H; Nakamura, N; Shibata, RY; Iwami, S; Nagasaki, Y

    VACCINE   Vol. 41 ( 52 ) page: 7655 - 7662   2023.12

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    The 3-dose COVID-19 vaccine (booster vaccination) has been offered worldwide. As booster vaccinations continue, it is important to understand the antibody dynamics elicited by booster vaccination in order to evaluate and develop vaccination needs and strategies. Here, we investigated longitudinal data by monitoring IgG antibodies against the receptor binding domain (RBD) in health care workers. We extended our previously developed mathematical model to booster vaccines and successfully fitted antibody titers over time in the absence and presence of past SARS-CoV-2 infection. Quantitative analysis using our mathematical model indicated that anti-RBD IgG titers increase to a comparable extent after booster vaccination, regardless of the presence or absence of infection, but infection history extends the duration of antibody response by 1.28 times. Such a mathematical modeling approach can be used to inform future vaccination strategies on the basis of an individual's immune history. Our simple quantitative approach can be extended to any kind of vaccination and therefore can form a basis for policy decisions regarding the distribution of booster vaccines to strengthen immunity in future pandemics.

    DOI: 10.1016/j.vaccine.2023.11.040

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  4. Isolation may select for earlier and higher peak viral load but shorter duration in SARS-CoV-2 evolution

    Sunagawa, J; Park, H; Kim, KS; Komorizono, R; Choi, S; Torres, LR; Woo, J; Jeong, YD; Hart, WS; Thompson, RN; Aihara, K; Iwami, S; Yamaguchi, R

    NATURE COMMUNICATIONS   Vol. 14 ( 1 ) page: 7395   2023.11

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    During the COVID-19 pandemic, human behavior change as a result of nonpharmaceutical interventions such as isolation may have induced directional selection for viral evolution. By combining previously published empirical clinical data analysis and multi-level mathematical modeling, we find that the SARS-CoV-2 variants selected for as the virus evolved from the pre-Alpha to the Delta variant had earlier and higher peak in viral load dynamics but a shorter duration of infection. Selection for increased transmissibility shapes the viral load dynamics, and the isolation measure is likely to be a driver of these evolutionary transitions. In addition, we show that a decreased incubation period and an increased proportion of asymptomatic infection are also positively selected for as SARS-CoV-2 mutated to adapt to human behavior (i.e., Omicron variants). The quantitative information and predictions we present here can guide future responses in the potential arms race between pandemic interventions and viral evolution.

    DOI: 10.1038/s41467-023-43043-2

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  5. Antibody Profiling of Microbial Antigens in the Blood of COVID-19 mRNA Vaccine Recipients Using Microbial Protein Microarrays

    Saito, H; Yoshimura, H; Yoshida, M; Tani, Y; Kawashima, M; Uchiyama, T; Zhao, TC; Yamamoto, C; Kobashi, Y; Sawano, T; Imoto, S; Park, H; Nakamura, N; Iwami, S; Kaneko, Y; Nakayama, A; Kodama, T; Wakui, M; Kawamura, T; Tsubokura, M

    VACCINES   Vol. 11 ( 11 )   2023.11

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    Although studies have demonstrated that infections with various viruses, bacteria, and parasites can modulate the immune system, no study has investigated changes in antibodies against microbial antigens after the COVID-19 mRNA vaccination. IgG antibodies against microbial antigens in the blood of vaccinees were comprehensively analyzed using microbial protein microarrays that carried approximately 5000 microbe-derived proteins. Changes in antibodies against microbial antigens were scrutinized in healthy participants enrolled in the Fukushima Vaccination Community Survey conducted in Fukushima Prefecture, Japan, after their second and third COVID-19 mRNA vaccinations. Antibody profiling of six groups stratified by antibody titer and the remaining neutralizing antibodies was also performed to study the dynamics of neutralizing antibodies against SARS-CoV-2 and the changes in antibodies against microbial antigens. The results showed that changes in antibodies against microbial antigens other than SARS-CoV-2 antigens were extremely limited after COVID-19 vaccination. In addition, antibodies against a staphylococcal complement inhibitor have been identified as microbial antigens that are associated with increased levels of neutralizing antibodies against SARS-CoV-2. These antibodies may be a predictor of the maintenance of neutralizing antibodies following the administration of a COVID-19 mRNA vaccine.

    DOI: 10.3390/vaccines11111694

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  6. Contact-number-driven virus evolution: A multi-level modeling framework for the evolution of acute or persistent RNA virus infection

    Sunagawa, J; Komorizono, R; Park, H; Hart, WS; Thompson, RN; Makino, A; Tomonaga, K; Iwami, S; Yamaguchi, R

    PLOS COMPUTATIONAL BIOLOGY   Vol. 19 ( 5 ) page: e1011173   2023.5

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    Viruses evolve in infected host populations, and host population dynamics affect viral evolution. RNA viruses with a short duration of infection and a high peak viral load, such as SARS-CoV-2, are maintained in human populations. By contrast, RNA viruses characterized by a long infection duration and a low peak viral load (e.g., borna disease virus) can be maintained in nonhuman populations, and the process of the evolution of persistent viruses has rarely been explored. Here, using a multi-level modeling approach including both individual-level virus infection dynamics and population-scale transmission, we consider virus evolution based on the host environment, specifically, the effect of the contact history of infected hosts. We found that, with a highly dense contact history, viruses with a high virus production rate but low accuracy are likely to be optimal, resulting in a short infectious period with a high peak viral load. In contrast, with a low-density contact history, viral evolution is toward low virus production but high accuracy, resulting in long infection durations with low peak viral load. Our study sheds light on the origin of persistent viruses and why acute viral infections but not persistent virus infection tends to prevail in human society.

    DOI: 10.1371/journal.pcbi.1011173

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  7. Age-related changes in the hematopoietic stem cell pool revealed via quantifying the balance of symmetric and asymmetric divisions Invited Reviewed International coauthorship

    T Kawahigashi†, S Iwanami†, M Takahashi, J Bhadury, S Iwami and S Yamazaki.

    PLOS ONE   Vol. 19 ( 1 ) page: e0292575   2024.1

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    DOI: 10.1371/journal.pone.0292575

  8. Analysis of the risk and pre-emptive control of viral outbreaks accounting for within-host dynamics: SARS-CoV-2 as a case study Reviewed International coauthorship

    W. S. Hart, H. Park, Y. D. Jeong, K. S. Kim, R. Yoshimura, R. N. Thompson† and S. Iwami

    Proceedings of the National Academy of Sciences of the United States of America   Vol. 120 ( 41 ) page: e2305451120   2023.10

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    DOI: 10.1073/pnas.2305451120

  9. A multicenter randomized controlled trial to evaluate the efficacy and safety of nelfinavir in patients with mild COVID-19 Invited Reviewed

    T. Miyazaki, N. Hosogaya, Y. Fukushige, S. Takemori, S. Morimoto, H. Yamamoto, M. Hori, Y. Ozawa, Y. Shiko, Y. Inaba, T. Kurokawa, H. Hanaoka, S. Iwanami, K. Kim, S. Iwami, K. Watashi, K. Miyazawa, T. Umeyama, S. Yamagoe, Y. Miyazaki, T. Wakita, M. Sumiyoshi, T. Hirayama, K. Izumikawa, K. Yanagihara, H. Mukae, H. Kawasuji, Y. Yamamoto, N. Tarumoto, H. Ishii, H. Ohno, K. Yatera, H. Kakeya, Y. Kichikawa, Y. Kato, T. Matsumoto, M. Saito, H. Yotsuyanagi and S. Kohno.

    Microbiology Spectrum   Vol. 11 ( 3 ) page: e0431122   2023.6

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    DOI: 10.1128/spectrum.04311-22

  10. Increased flexibility of the SARS-CoV-2 RNA-binding site causes resistance to remdesivir Reviewed

    S.Torii†, K.S.Kim†, J.Koseki†, R.Suzuki†, S.Iwanami, Y.Fujita, Y.D.Jeong, J.Ito, H.Asakura, M.Nagashima, K.Sadamasu, K.Yoshimura, The Genotype to Phenotype Japan (G2P-Japan) Consortium, K.Sato, Y. Matsuura, T.Shimamura, S.Iwami, T.Fukuhara

    PLOS Pathogens   Vol. 19 ( 3 ) page: e1011231   2023.3

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    DOI: 10.1371/journal.ppat.1011231

  11. Relationship between the inclusion/exclusion criteria and sample size in randomized controlled trials for SARS-CoV-2 entry inhibitors Reviewed International coauthorship

    Tatematsu Daiki, Akao Marwa, Park Hyeongki, Iwami Shingo, Ejima Keisuke, Iwanami Shoya

    JOURNAL OF THEORETICAL BIOLOGY   Vol. 561   page: 111403   2023.3

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    DOI: 10.1016/j.jtbi.2022.111403

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  12. Potential anti-monkeypox virus activity of atovaquone, mefloquine, and molnupiravir, and their potential use as treatments Reviewed International coauthorship

    D. Akazawa¶, H. Ohashi¶, T. Hishiki&, T. Morita&, S. Iwanami†, K. S. Kim†, Y. D. Jeong†, E. S. Park, M. Kataoka, K. Shionoya, J. Mifune, K. Tsuchimoto, S. Ojima, A. H. Azam, S. Nakajima, H. Park, T. Yoshikawa, M. Shimojima, K. Kiga, S. Iwami, K. Maeda, T. Suzuki, H. Ebihara, Y. Takahashi and K. Watashi

    Journal of Infectious Diseases   Vol. 228 ( 5 ) page: 591 - 603   2023.3

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    DOI: 10.1093/infdis/jiad058

  13. The impact of cross-reactive immunity on the emergence of SARS-CoV-2 variants Reviewed International coauthorship

    Thompson Robin N., Southall Emma, Daon Yair, Lovell-Read Francesca A., Iwami Shingo, Thompson Craig P., Obolski Uri

    FRONTIERS IN IMMUNOLOGY   Vol. 13   page: 1049458   2023.1

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    DOI: 10.3389/fimmu.2022.1049458

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  14. Smoking enhances the expression of angiotensin-converting enzyme 2 involved in the efficiency of severe acute respiratory syndrome coronavirus 2 infection Reviewed

    Suzuki Rigel, Ono Yuki, Noshita Koji, Kim Kwang Su, Ito Hayato, Morioka Yuhei, Tamura Tomokazu, Okuzaki Daisuke, Tagawa Tetsuzo, Takenaka Tomoyoshi, Yoshizumi Tomoharu, Shimamura Teppei, Iwami Shingo, Fukuhara Takasuke

    MICROBIOLOGY AND IMMUNOLOGY   Vol. 67 ( 1 ) page: 22 - 31   2023.1

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  15. Detecting time-evolving phenotypic components of adverse reactions against BNT162b2 SARS-CoV-2 vaccine via non-negative tensor factorization Reviewed

    Ikeda Kei, Nakada Taka-Aki, Kageyama Takahiro, Tanaka Shigeru, Yoshida Naoki, Ishikawa Tetsuo, Goshima Yuki, Otaki Natsuko, Iwami Shingo, Shimamura Teppei, Taniguchi Toshibumi, Igari Hidetoshi, Hanaoka Hideki, Yokote Koutaro, Tsuyuzaki Koki, Nakajima Hiroshi, Kawakami Eiryo

    iScience   Vol. 25 ( 10 ) page: 105237   2022.10

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    DOI: 10.1016/j.isci.2022.105237

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  16. A direct comparison of methods for assessing the threat from emerging infectious diseases in seasonally varying environments Reviewed International coauthorship

    Kaye A. R., Hart W. S., Bromiley J., Iwami S., Thompson R. N.

    JOURNAL OF THEORETICAL BIOLOGY   Vol. 548   page: 111195   2022.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Theoretical Biology  

    Seasonal variations in environmental conditions lead to changing infectious disease epidemic risks at different times of year. The probability that early cases initiate a major epidemic depends on the season in which the pathogen enters the population. The instantaneous epidemic risk (IER) can be tracked. This quantity is straightforward to calculate, and corresponds to the probability of a major epidemic starting from a single case introduced at time t=t0, assuming that environmental conditions remain identical from that time onwards (i.e. for all t≥t0). However, the threat when a pathogen enters the population in fact depends on changes in environmental conditions occurring within the timescale of the initial phase of the outbreak. For that reason, we compare the IER with a different metric: the case epidemic risk (CER). The CER corresponds to the probability of a major epidemic starting from a single case entering the population at time t=t0, accounting for changes in environmental conditions after that time. We show how the IER and CER can be calculated using different epidemiological models (the stochastic Susceptible-Infectious-Removed model and a stochastic host-vector model that is parameterised using temperature data for Miami) in which transmission parameter values vary temporally. While the IER is always easy to calculate numerically, the adaptable method we provide for calculating the CER for the host-vector model can also be applied easily and solved using widely available software tools. In line with previous research, we demonstrate that, if a pathogen is likely to either invade the population or fade out on a fast timescale compared to changes in environmental conditions, the IER closely matches the CER. However, if this is not the case, the IER and the CER can be significantly different, and so the CER should be used. This demonstrates the need to consider future changes in environmental conditions carefully when assessing the risk posed by emerging pathogens.

    DOI: 10.1016/j.jtbi.2022.111195

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  17. Different efficacies of neutralizing antibodies and antiviral drugs on SARS-CoV-2 Omicron subvariants, BA.1 and BA.2 Reviewed International coauthorship

    Ohashi Hirofumi, Hishiki Takayuki, Akazawa Daisuke, Kim Kwang Su, Woo Joohyeon, Shionoya Kaho, Tsuchimoto Kana, Iwanami Shoya, Moriyama Saya, Kinoshita Hitomi, Yamada Souichi, Kuroda Yudai, Yamamoto Tsukasa, Kishida Noriko, Watanabe Shinji, Hasegawa Hideki, Suzuki Tadaki, Maeda Ken, Fukushi Shuetsu, Takahashi Yoshimasa, Iwami Shingo, Watashi Koichi

    ANTIVIRAL RESEARCH   Vol. 205   page: 105372   2022.9

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    The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron subvariant BA.2 has spread in many countries, replacing the earlier Omicron subvariant BA.1 and other variants. Here, using a cell culture infection assay, we quantified the intrinsic sensitivity of BA.2 and BA.1 compared with other variants of concern, Alpha, Gamma, and Delta, to five approved-neutralizing antibodies and antiviral drugs. Our assay revealed the diverse sensitivities of these variants to antibodies, including the loss of response of both BA.1 and BA.2 to casirivimab and of BA.1 to imdevimab. In contrast, EIDD-1931 and nirmatrelvir showed a more conserved activities to these variants. The viral response profile combined with mathematical analysis estimated differences in antiviral effects among variants in the clinical concentrations. These analyses provide essential evidence that gives insight into variant emergence's impact on choosing optimal drug treatment.

    DOI: 10.1016/j.antiviral.2022.105372

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  18. Designing isolation guidelines for COVID-19 patients with rapid antigen tests Reviewed International coauthorship International journal

    Jeong Yong Dam, Ejima Keisuke, Kim Kwang Su, Joohyeon Woo, Iwanami Shoya, Fujita Yasuhisa, Jung Il Hyo, Aihara Kazuyuki, Shibuya Kenji, Iwami Shingo, Bento Ana I, Ajelli Marco

    NATURE COMMUNICATIONS   Vol. 13 ( 1 ) page: 4910   2022.8

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    Appropriate isolation guidelines for COVID-19 patients are warranted. Currently, isolating for fixed time is adopted in most countries. However, given the variability in viral dynamics between patients, some patients may no longer be infectious by the end of isolation, whereas others may still be infectious. Utilizing viral test results to determine isolation length would minimize both the risk of prematurely ending isolation of infectious patients and the unnecessary individual burden of redundant isolation of noninfectious patients. In this study, we develop a data-driven computational framework to compute the population-level risk and the burden of different isolation guidelines with rapid antigen tests (i.e., lateral flow tests). Here, we show that when the detection limit is higher than the infectiousness threshold values, additional consecutive negative results are needed to ascertain infectiousness status. Further, rapid antigen tests should be designed to have lower detection limits than infectiousness threshold values to minimize the length of prolonged isolation.

    DOI: 10.1038/s41467-022-32663-9

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  19. Estimation of timing of infection from longitudinal SARS-CoV-2 viral load data: mathematical modelling study Reviewed International coauthorship

    Ejima Keisuke, Kim Kwang Su, Bento Ana I, Iwanami Shoya, Fujita Yasuhisa, Aihara Kazuyuki, Shibuya Kenji, Iwami Shingo

    BMC INFECTIOUS DISEASES   Vol. 22 ( 1 ) page: 656   2022.7

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    Background: Multiple waves of the COVID-19 epidemic have hit most countries by the end of 2021. Most of those waves are caused by emergence and importation of new variants. To prevent importation of new variants, combination of border control and contact tracing is essential. However, the timing of infection inferred by interview is influenced by recall bias and hinders the contact tracing process. Methods: We propose a novel approach to infer the timing of infection, by employing a within-host model to capture viral load dynamics after the onset of symptoms. We applied this approach to ascertain secondary transmission which can trigger outbreaks. As a demonstration, the 12 initial reported cases in Singapore, which were considered as imported because of their recent travel history to Wuhan, were analyzed to assess whether they are truly imported. Results: Our approach suggested that 6 cases were infected prior to the arrival in Singapore, whereas other 6 cases might have been secondary local infection. Three among the 6 potential secondary transmission cases revealed that they had contact history to previously confirmed cases. Conclusions: Contact trace combined with our approach using viral load data could be the key to mitigate the risk of importation of new variants by identifying cases as early as possible and inferring the timing of infection with high accuracy.

    DOI: 10.1186/s12879-022-07646-2

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  20. Maternal embryonic leucine zipper kinase (MELK) optimally regulates the HIV-1 uncoating process Reviewed

    Nishiyama Takara, Takada Toru, Takeuchi Hiroaki, Iwami Shingo

    JOURNAL OF THEORETICAL BIOLOGY   Vol. 545   page: 111152   2022.7

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    Human immunodeficiency virus type-1 (HIV-1) attaches to target cells and releases the capsid, an essential component of the viral core that contains viral RNA, into the cytoplasm. After invading target cells, the core structure gradually collapses. The timing of the disassembly of the HIV-1 capsid is essential for efficient viral cDNA synthesis and transport into the nucleus. HIV-1 uncoating is controlled by the host factor maternal embryonic leucine zipper kinase (MELK); however, the quantitative and dynamic relationship between the HIV-1 uncoating process and HIV-1 infection remains unresolved. In this study, we quantified the uncoating process on HIV-1 cDNA synthesis and transport into the nucleus by combining a mathematical model with in vitro data. In addition, detailed in silico simulations demonstrated host factors, including MELK, optimize transport efficiency. Our experimental-mathematical approach revealed quantitative dynamics of the HIV-1 uncoating process, indicating that increasing the speed of uncoating always reduces the amount of HIV-1 cDNA in the nucleus.

    DOI: 10.1016/j.jtbi.2022.111152

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  21. Antithetic effect of interferon-alpha on cell-free and cell-to-cell HIV-1 infection Reviewed International coauthorship International journal

    Kumata Ryuichi, Iwanami Shoya, Mar Katrina B., Kakizoe Yusuke, Misawa Naoko, Nakaoka Shinji, Koyanagi Yoshio, Perelson Alan S., Schoggins John W., Iwami Shingo, Sato Kei

    PLOS COMPUTATIONAL BIOLOGY   Vol. 18 ( 4 ) page: e1010053   2022.4

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    In HIV-1-infected individuals, transmitted/founder (TF) virus contributes to establish new infection and expands during the acute phase of infection, while chronic control (CC) virus emerges during the chronic phase of infection. TF viruses are more resistant to interferon-alpha (IFN-α)-mediated antiviral effects than CC virus, however, its virological relevance in infected individuals remains unclear. Here we perform an experimental-mathematical investigation and reveal that IFN-α strongly inhibits cell-to-cell infection by CC virus but only weakly affects that by TF virus. Surprisingly, IFN-α enhances cell-free infection of HIV-1, particularly that of CC virus, in a virus-cell density-dependent manner. We further demonstrate that LY6E, an IFN-stimulated gene, can contribute to the density-dependent enhancement of cell-free HIV-1 infection. Altogether, our findings suggest that the major difference between TF and CC viruses can be explained by their resistance to IFN-α-mediated inhibition of cell-to-cell infection and their sensitivity to IFN-α-mediated enhancement of cell-free infection.

    DOI: 10.1371/journal.pcbi.1010053

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  22. Optimal Feedback Control of Cancer Chemotherapy Using Hamilton-Jacobi-Bellman Equation International coauthorship International journal

    Jeong Yong Dam, Kim Kwang Su, Roh Yunil, Choi Sooyoun, Iwami Shingo, Jung Il Hyo

    COMPLEXITY   Vol. 2022   page: 2158052   2022.4

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    Cancer chemotherapy has been the most common cancer treatment. However, it has side effects that kill both tumor cells and immune cells, which can ravage the patient's immune system. Chemotherapy should be administered depending on the patient's immunity as well as the level of cancer cells. Thus, we need to design an efficient treatment protocol. In this work, we study a feedback control problem of tumor-immune system to design an optimal chemotherapy strategy. For this, we first propose a mathematical model of tumor-immune interactions and conduct stability analysis of two equilibria. Next, the feedback control is found by solving the Hamilton-Jacobi-Bellman (HJB) equation. Here, we use an upwind finite-difference method for a numerical approximate solution of the HJB equation. Numerical simulations show that the feedback control can help determine the treatment protocol of chemotherapy for tumor and immune cells depending on the side effects.

    DOI: 10.1155/2022/2158052

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  23. Factors Associated with COVID-19 Vaccine Booster Hesitancy: A Retrospective Cohort Study, Fukushima Vaccination Community Survey Reviewed International journal

    Yoshida Makoto, Kobashi Yurie, Kawamura Takeshi, Shimazu Yuzo, Nishikawa Yoshitaka, Omata Fumiya, Zhao Tianchen, Yamamoto Chika, Kaneko Yudai, Nakayama Aya, Takita Morihito, Ito Naomi, Kawashima Moe, Sugiura Sota, Shibuya Kenji, Iwami Shingo, Kim Kwangsu, Iwanami Shoya, Kodama Tatsuhiko, Tsubokura Masaharu

    Vaccines   Vol. 10 ( 4 ) page: 515   2022.3

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    This was a retrospective cohort study, which aimed to investigate the factors associated with hesitancy to receive a third dose of a coronavirus disease 2019 (COVID-19) vaccine. A paper-based questionnaire survey was administered to all participants. This study included participants who provided answers in the questionnaire about whether they had an intent to receive a third dose of a vaccine. Data on sex, age, area of residence, adverse reactions after the second vaccination, whether the third vaccination was desired, and reasons to accept or hesitate over the booster vaccination were retrieved. Among the 2439 participants, with a mean (±SD) age of 52.6 ± 18.9 years, and a median IgG-S antibody titer of 324.9 (AU/mL), 97.9% of participants indicated their intent to accept a third vaccination dose. The logistic regression revealed that participants of a younger age (OR = 0.98; 95% CI: 0.96–1.00) and with a higher antibody level (OR = 2.52; 95% CI: 1.27–4.99) were positively associated with hesitancy over the third vaccine. The efficacy of the COVID-19 vaccine and concerns about adverse reactions had a significant impact on behavior regarding the third vaccination. A rapid increase in the booster dose rate is needed to control the pandemic, and specific approaches should be taken with these groups that are likely to hesitate over the third vaccine, subsequently increasing booster contact rate.

    DOI: 10.3390/vaccines10040515

    Web of Science

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  24. Escaping stochastic extinction of mutant virus: Temporal pattern of emergence of drug resistance within a host Reviewed

    Hayashi R., Iwami S., Iwasa Y.

    Journal of Theoretical Biology   Vol. 537   page: 111029   2022.3

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    DOI: 10.1016/j.jtbi.2022.111029

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  25. Evaluating the cost-effectiveness of a pre-exposure prophylaxis program for HIV prevention for men who have sex with men in Japan Reviewed

    Yamamoto N., Koizumi Y., Tsuzuki S., Ejima K., Takano M., Iwami S., Mizushima D., Oka S.

    Scientific Reports   Vol. 12 ( 1 ) page: 3088   2022.2

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    DOI: 10.1038/s41598-022-07116-4

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  26. Designing isolation guidelines for COVID-19 patients utilizing rapid antigen tests: a simulation study using viral dynamics models.

    Jeong YD, Ejima K, Kim KS, Joohyeon W, Iwanami S, Fujita Y, Jung IH, Shibuya K, Iwami S, Bento AI, Ajelli M

    Translational and Regulatory Sciences     2022.1

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    DOI: 10.1101/2022.01.24.22269769

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  27. A widely distributed HIV-1 provirus elimination assay to evaluate latency-reversing agents in vitro Reviewed International coauthorship

    K. Matsuda, S. Islam, T. Takada, K. Tsuchiya, B.J. Yang Tan, S. Hattori, H. Katsuya, K. Kitagawa, K.S. Kim, M. Matsuo, K. Sugata, N.S. Delino, H. Gatanaga, K. Yoshimura, S. Matsushita, H. Mitsuya, S. Iwami, Y. Satou, and K. Maeda.

    Cell Reports Methods   Vol. 1 ( 8 ) page: 100122   2021.12

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    DOI: https://doi.org/10.1016/j.crmeth.2021.100122

  28. Incomplete antiviral treatment may induce longer durations of viral shedding during SARS-CoV-2 infection Reviewed

    Kim K.S., Iwanami S., Oda T., Fujita Y., Kuba K., Miyazaki T., Ejima K., Iwami S.

    Life Science Alliance   Vol. 4 ( 10 )   2021.8

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    DOI: 10.26508/LSA.202101049

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  29. Revisiting the guidelines for ending isolation for COVID-19 patients Reviewed

    Jeong Yong Dam, Ejima Keisuke, Kim Kwang Su, Iwanami Shoya, Bento Ana I, Fujita Yasuhisa, Jung Il Hyo, Aihara Kazuyuki, Watashi Koichi, Miyazaki Taiga, Wakita Takaji, Iwami Shingo, Ajelli Marco

    eLife   Vol. 10   2021.7

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    Since the start of the COVID-19 pandemic, two mainstream guidelines for defining when to end the isolation of SARS-CoV-2-infected individuals have been in use: the one-size-fits-all approach (i.e. patients are isolated for a fixed number of days) and the personalized approach (i.e. based on repeated testing of isolated patients). We use a mathematical framework to model within-host viral dynamics and test different criteria for ending isolation. By considering a fixed time of 10 days since symptom onset as the criterion for ending isolation, we estimated that the risk of releasing an individual who is still infectious is low (0–6.6%). However, this policy entails lengthy unnecessary isolations (4.8–8.3 days). In contrast, by using a personalized strategy, similar low risks can be reached with shorter prolonged isolations. The obtained findings provide a scientific rationale for policies on ending the isolation of SARS-CoV-2-infected individuals.

    DOI: 10.7554/eLife.69340

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  30. Detection of significant antiviral drug effects on COVID-19 with reasonable sample sizes in randomized controlled trials: A modeling study combined with clinical data Reviewed

    Iwanami Shoya, Ejima Keisuke, Kim Kwang Su, Noshita Koji, Fujita Yasuhisa, Miyazaki Taiga, Kohno Shigeru, Miyazaki Yoshitsugu, Morimoto Shimpei, Nakaoka Shinji, Koizumi Yoshiki, Asai Yusuke, Aihara Kazuyuki, Watashi Koichi, Thompson Robin N., Shibuya Kenji, Fujiu Katsuhito, Perelson Alan S., Iwami Shingo, Wakita Takaji

    PLOS Medicine   Vol. 18 ( 7 ) page: e1003660   2021.7

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    Background Development of an effective antiviral drug for Coronavirus Disease 2019 (COVID-19) is a global health priority. Although several candidate drugs have been identified through in vitro and in vivo models, consistent and compelling evidence from clinical studies is limited. The lack of evidence from clinical trials may stem in part from the imperfect design of the trials. We investigated how clinical trials for antivirals need to be designed, especially focusing on the sample size in randomized controlled trials Methods and findings A modeling study was conducted to help understand the reasons behind inconsistent clinical trial findings and to design better clinical trials. We first analyzed longitudinal viral load data for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) without antiviral treatment by use of a within-host virus dynamics model. The fitted viral load was categorized into 3 different groups by a clustering approach. Comparison of the estimated parameters showed that the 3 distinct groups were characterized by different virus decay rates (p-value < 0.001). The mean decay rates were 1.17 d-1 (95% CI: 1.06 to 1.27 d-1), 0.777 d-1 (0.716 to 0.838 d-1), and 0.450 d-1 (0.378 to 0.522 d-1) for the 3 groups, respectively. Such heterogeneity in virus dynamics could be a confounding variable if it is associated with treatment allocation in compassionate use programs (i.e., observational studies). Subsequently, we mimicked randomized controlled trials of antivirals by simulation. An antiviral effect causing a 95% to 99% reduction in viral replication was added to the model. To be realistic, we assumed that randomization and treatment are initiated with some time lag after symptom onset. Using the duration of virus shedding as an outcome, the sample size to detect a statistically significant mean difference between the treatment and placebo groups (1:1 allocation) was 13,603 and 11,670 (when the antiviral effect was 95% and 99%, respectively) per group if all patients are enrolled regardless of timing of randomization. The sample size was reduced to 584 and 458 (when the antiviral effect was 95% and 99%, respectively) if only patients who are treated within 1 day of symptom onset are enrolled. We confirmed the sample size was similarly reduced when using cumulative viral load in log scale as an outcome. We used a conventional virus dynamics model, which may not fully reflect the detailed mechanisms of viral dynamics of SARS-CoV-2. The model needs to be calibrated in terms of both parameter settings and model structure, which would yield more reliable sample size calculation. Conclusions In this study, we found that estimated association in observational studies can be biased due to large heterogeneity in viral dynamics among infected individuals, and statistically significant effect in randomized controlled trials may be difficult to be detected due to small sample size. The sample size can be dramatically reduced by recruiting patients immediately after developing symptoms. We believe this is the first study investigated the study design of clinical trials for antiviral treatment using the viral dynamics model.

    DOI: 10.1371/journal.pmed.1003660

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  31. Mefloquine, a Potent Anti-severe Acute Respiratory Syndrome-Related Coronavirus 2 (SARS-CoV-2) Drug as an Entry Inhibitor in vitro Reviewed

    Shionoya Kaho, Yamasaki Masako, Iwanami Shoya, Ito Yusuke, Fukushi Shuetsu, Ohashi Hirofumi, Saso Wakana, Tanaka Tomohiro, Aoki Shin, Kuramochi Kouji, Iwami Shingo, Takahashi Yoshimasa, Suzuki Tadaki, Muramatsu Masamichi, Takeda Makoto, Wakita Takaji, Watashi Koichi

    FRONTIERS IN MICROBIOLOGY   Vol. 12   page: 651403   2021.4

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    Coronavirus disease 2019 (COVID-19) has caused serious public health, social, and economic damage worldwide and effective drugs that prevent or cure COVID-19 are urgently needed. Approved drugs including Hydroxychloroquine, Remdesivir or Interferon were reported to inhibit the infection or propagation of severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2), however, their clinical efficacies have not yet been well demonstrated. To identify drugs with higher antiviral potency, we screened approved anti-parasitic/anti-protozoal drugs and identified an anti-malarial drug, Mefloquine, which showed the highest anti-SARS-CoV-2 activity among the tested compounds. Mefloquine showed higher anti-SARS-CoV-2 activity than Hydroxychloroquine in VeroE6/TMPRSS2 and Calu-3 cells, with IC50 = 1.28 μM, IC90 = 2.31 μM, and IC99 = 4.39 μM in VeroE6/TMPRSS2 cells. Mefloquine inhibited viral entry after viral attachment to the target cell. Combined treatment with Mefloquine and Nelfinavir, a replication inhibitor, showed synergistic antiviral activity. Our mathematical modeling based on the drug concentration in the lung predicted that Mefloquine administration at a standard treatment dosage could decline viral dynamics in patients, reduce cumulative viral load to 7% and shorten the time until virus elimination by 6.1 days. These data cumulatively underscore Mefloquine as an anti-SARS-CoV-2 entry inhibitor.

    DOI: 10.3389/fmicb.2021.651403

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  32. Efficacy and safety of nelfinavir in asymptomatic and mild COVID-19 patients: a structured summary of a study protocol for a multicenter, randomized controlled trial. Reviewed

    Hosogaya N, Miyazaki T, Fukushige Y, Takemori S, Morimoto S, Yamamoto H, Hori M, Kurokawa T, Kawasaki Y, Hanawa M, Fujii Y, Hanaoka H, Iwami S, Watashi K, Yamagoe S, Miyazaki Y, Wakita T, Izumikawa K, Yanagihara K, Mukae H, Kohno S, Nelfinavir Study Group.

    Trials   Vol. 22 ( 1 ) page: 309   2021.4

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    DOI: 10.1186/s13063-021-05282-w

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  33. Potential anti-COVID-19 agents, cepharanthine and nelfinavir, and their usage for combination treatment Reviewed International coauthorship

    Hirofumi Ohashi;Koichi Watashi;Wakana Saso;Kaho Shionoya;Shoya Iwanami;Takatsugu Hirokawa;Tsuyoshi Shirai;Shigehiko Kanaya;Yusuke Ito;Kwang Su Kim;Takao Nomura;Tateki Suzuki;Kazane Nishioka;Shuji Ando;Keisuke Ejima;Yoshiki Koizumi;Tomohiro Tanaka;Shin Aoki;Kouji Kuramochi;Tadaki Suzuki;Takao Hashiguchi;Katsumi Maenaka;Tetsuro Matano;Masamichi Muramatsu;Masayuki Saijo;Kazuyuki Aihara;Shingo Iwami;Makoto Takeda;Jane A. McKeating;Takaji Wakita

    iScience   Vol. 24 ( 4 ) page: 102367 - 102367   2021.4

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    DOI: https://doi.org/10.1016/j.isci.2021.102367

  34. Time variation in the probability of failing to detect a case of polymerase chain reaction testing for SARS-CoV-2 as estimated from a viral dynamics model. Reviewed

    Ejima K, Kim KS, Iwanami S, Fujita Y, Li M, Zoh RS, Aihara K, Miyazaki T, Wakita T, Iwami S

    Journal of the Royal Society, Interface   Vol. 18 ( 177 ) page: 20200947   2021.4

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    DOI: 10.1098/rsif.2020.0947

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  35. Estimation of the incubation period of COVID-19 using viral load data. Reviewed

    Ejima K, Kim KS, Ludema C, Bento AI, Iwanami S, Fujita Y, Ohashi H, Koizumi Y, Watashi K, Aihara K, Nishiura H, Iwami S

    Epidemics   Vol. 35   page: 100454   2021.3

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    DOI: 10.1016/j.epidem.2021.100454

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  36. A quantitative model used to compare within-host SARS-CoV-2, MERS-CoV, and SARS-CoV dynamics provides insights into the pathogenesis and treatment of SARS-CoV-2. Reviewed

    Kim KS, Ejima K, Iwanami S, Fujita Y, Ohashi H, Koizumi Y, Asai Y, Nakaoka S, Watashi K, Aihara K, Thompson RN, Ke R, Perelson AS, Iwami S

    PLoS biology   Vol. 19 ( 3 ) page: e3001128   2021.3

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    DOI: 10.1371/journal.pbio.3001128

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  37. HIV testing by public health centers and municipalities and new HIV cases during the COVID-19 pandemic in Japan. Reviewed

    Ejima K, Koizumi Y, Yamamoto N, Rosenberg M, Ludema C, Bento AI, Yoneoka D, Ichikawa S, Mizushima D, Iwami S

    Journal of acquired immune deficiency syndromes (1999)     2021.2

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    DOI: 10.1097/QAI.0000000000002660

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  38. Quantifying antiviral effects against simian/human immunodeficiency virus induced by host immune response. Reviewed

    Oda T, Kim KS, Fujita Y, Ito Y, Miura T, Iwami S

    Journal of theoretical biology   Vol. 509   page: 110493   2021.1

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    DOI: 10.1016/j.jtbi.2020.110493

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  39. Modeling HIV multiple infection. Reviewed

    Guo T, Qiu Z, Kitagawa K, Iwami S, Rong L

    Journal of theoretical biology   Vol. 509   page: 110502   2021.1

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    DOI: 10.1016/j.jtbi.2020.110502

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  40. Direct Evidence of Abortive Lytic Infection-Mediated Establishment of Epstein-Barr Virus Latency During B-Cell Infection Reviewed

    Inagaki Tomoki, Sato Yoshitaka, Ito Jumpei, Takaki Mitsuaki, Okuno Yusuke, Yaguchi Masahiro, Al Masud H. M. Abdullah, Watanabe Takahiro, Sato Kei, Iwami Shingo, Murata Takayuki, Kimura Hiroshi

    FRONTIERS IN MICROBIOLOGY   Vol. 11   page: 575255   2021.1

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    DOI: 10.3389/fmicb.2020.575255

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  41. Required concentration index quantifies effective drug combinations against hepatitis C virus infection. Reviewed

    Kakizoe Y, Koizumi Y, Ikoma Y, Ohashi H, Wakita T, Iwami S, Watashi K

    Theoretical Biology and Medical Modelling   Vol. 18 ( 1 ) page: 4   2021.1

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    DOI: 10.1186/s12976-020-00135-6

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  42. Identification of novel avian and mammalian deltaviruses provides new insights into deltavirus evolution. Reviewed

    Iwamoto M, Shibata Y, Kawasaki J, Kojima S, Li YT, Iwami S, Muramatsu M, Wu HL, Wada K, Tomonaga K, Watashi K, Horie M

    Virus evolution   Vol. 7 ( 1 ) page: veab003   2021.1

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    DOI: 10.1093/ve/veab003

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  43. Detection of significant antiviral drug effects on COVID-19 using viral load and PCR-positive rate in randomized controlled trials Reviewed

    AKAO Marwa, WOO Joohyeon, IWAMI Shingo, IWANAMI Shoya

    Translational and Regulatory Sciences   Vol. 3 ( 3 ) page: 85 - 88   2021

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Catalyst Unit  

    <p>To evaluate the effects of antiviral drugs against coronavirus disease (COVID-19), we calculated the sample size needed to detect significant differences in daily viral load in randomized controlled trials. While calculating sample sizes, simulated viral loads that mimicked longitudinal clinical data were used. The sample size computed from the viral load was the smallest 2 to 4 days after trial participation, while the smallest sample size computed from the positive rate was 4 to 7 days after clinical trial participation.</p>

    DOI: 10.33611/trs.2021-025

    CiNii Research

  44. Modeling Borna Disease Virus in Vitro Spread Reveals the Mode of Antiviral Effect Conferred by an Endogenous Bornavirus-Like Element. Reviewed

    Kim KS, Yamamoto Y, Nakaoka S, Tomonaga K, Iwami S, Honda T

    Journal of virology   Vol. 94 ( 21 )   2020.10

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    DOI: 10.1128/JVI.01204-20

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  45. Modeling the efficiency of filovirus entry into cells in vitro: Effects of SNP mutations in the receptor molecule. Reviewed

    Kim KS, Kondoh T, Asai Y, Takada A, Iwami S

    PLoS computational biology   Vol. 16 ( 9 ) page: e1007612   2020.9

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    DOI: 10.1371/journal.pcbi.1007612

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  46. Quantifying the antiviral effect of APOBEC3 on HIV-1 infection in humanized mouse model. Reviewed

    Kurusu T, Kim KS, Koizumi Y, Nakaoka S, Ejima K, Misawa N, Koyanagi Y, Sato K, Iwami S

    Journal of theoretical biology   Vol. 498   page: 110295   2020.8

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    DOI: 10.1016/j.jtbi.2020.110295

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  47. Should a viral genome stay in the host cell or leave? A quantitative dynamics study of how hepatitis C virus deals with this dilemma. Reviewed

    Iwanami S, Kitagawa K, Ohashi H, Asai Y, Shionoya K, Saso W, Nishioka K, Inaba H, Nakaoka S, Wakita T, Diekmann O, Iwami S, Watashi K

    PLoS biology   Vol. 18 ( 7 ) page: e3000562   2020.7

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    DOI: 10.1371/journal.pbio.3000562

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  48. The machinery for endocytosis of epidermal growth factor receptor coordinates the transport of incoming hepatitis B virus to the endosomal network. Reviewed

    Iwamoto M, Saso W, Nishioka K, Ohashi H, Sugiyama R, Ryo A, Ohki M, Yun JH, Park SY, Ohshima T, Suzuki R, Aizaki H, Muramatsu M, Matano T, Iwami S, Sureau C, Wakita T, Watashi K

    The Journal of biological chemistry   Vol. 295 ( 3 ) page: 800 - 807   2020.1

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    DOI: 10.1074/jbc.AC119.010366

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Books 3

  1. 実験医学「感染症のデータサイエンス-いかに感染を制御するのか?どうやって治療をデザインするのか?」 Reviewed

    川上英良,岩見真吾/企画. ( Role: Joint author)

    羊土社  2022.8 

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    Responsible for pages:2084-2088   Language:Japanese Book type:Scholarly book

  2. ネオウイルス学 Reviewed

    集英社  2021.3 

  3. シリーズ現象を解明する数学 「ウイルス感染と常微分方程式」 Reviewed

    共立出版  2017.4 

MISC 7

  1. 新型コロナウイルスワクチンのブースター接種による誘導抗体動態の定量的解

    西山尚来,宮松雄一郎,朴炯基,横川理沙,長崎洋司,岩見真吾

    実験医学   Vol. 41   page: 2551 - 2556   2023

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  2. 「ウイルス」にはインドア派とアウトドア派がいる?! Reviewed

    岩見真吾

    教育科学/数学教育   Vol. 63   page: 28 - 29   2022.2

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  3. 新型コロナウイルス感染症研究のデジタルトランスフォーメーション Reviewed

    ウイルス   Vol. 72   page: 39 - 46   2022

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  4. 疾患の数理モデリングと定量的データ解析 Reviewed

    岩波翔也、チョン ヨンダム、キム クァンス、江島啓介、岩見真吾

    数理科学   ( 699 ) page: 16 - 22   2021.9

  5. B型肝炎ウイルスの定量的侵入動態解析 Reviewed

    岩見真吾, キム クァンス

    ファルマシア   Vol. 56 ( 12 ) page: 1104 - 1008   2020.9

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  6. 新型コロナウイルスの生体内感染動態の定量化とその応用 Reviewed

    岩波翔也, キム クァンス, 藤田泰久, 江島啓介, 岩見真吾

    数学セミナー   Vol. 59 ( 9 ) page: 33 - 39   2020.9

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  7. HTLV-1感染動態の数理モデル型定量的データ解析 Reviewed

    高木舜晟, 安永純一朗, 松岡雅雄, 岩見真吾

    実験医学増刊   Vol. 37 ( 20 )   2019.12

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Presentations 11

  1. 数理モデル駆動型の未病研究 -不均一性と層別化- Invited

    岩見真吾

    日本生理学会第100回記念大会  2023.3.16 

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  2. 福島ワクチンコホートのデータ解析 Invited

    岩見真吾

    現場からの医療改革推進協議会 第17回シンポジウム  2022.11.27 

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    Event date: 2022.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  3. ウイルス排出量の不均一性を考慮したCOVID-19感染者隔離戦略の定量的分析

    岩見真吾

    第69回日本ウイルス学会学術集会  2022.11.15 

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    Event date: 2022.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  4. デジタルツイン時代の医薬品の橋渡し研究 Invited

    岩見真吾

    創薬薬理フォーラム第30回シンポジウム  2022.10.14 

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  5. Stratifying elicited antibody dynamics after two doses of SARS-CoV-2 vaccine in a community-based cohort in Fukushima, Japan Invited International conference

    Shingo Iwami

    The 20th Awaji International Forum on Infection and Immunity, Research Institute for Microbial Diseases  2020.9.9 

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (invited, special)  

  6. 数理モデル駆動型のデータ解析

    岩見真吾

    2022年度 日本数理生物学会  2022.9.5 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  7. デジタルツイン時代のCOVID-19研究 Invited

    岩見真吾

    第49回日本毒性学会学術年会 シンポジウム  2022.7.1 

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    Event date: 2022.6 - 2022.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  8. デジタルツイン時代の感染症創薬研究 Invited

    岩見真吾

    第63回 日本臨床ウイルス学会 シンポジウム4  2022.6.19 

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    Event date: 2022.6

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  9. 異分野融合研究で挑む定量的疾患研究 Invited

    岩見真吾

    日本生化学会 北陸支部 第40回大会 シンポジウム  2022.6.4 

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    Event date: 2022.6

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  10. 数理モデルを駆使した定量的データ解析の役割 Invited

    岩見真吾

    第58回 日本肝臓学会総会 特別企画4 テクニカルセミナー  2022.6.3 

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    Event date: 2022.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  11. 数理モデル駆動型の未病研究 -不均一性と層別化- Invited

    岩見真吾

    日本生理学会第100回記念大会  2022.3.16 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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KAKENHI (Grants-in-Aid for Scientific Research) 5

  1. 尿中蛋白質断片の網羅的解析による日和見感染症の新規診断法の開発

    Grant number:22K08583  2022 - 2024

    科学研究費助成事業  基盤研究(C)

    岩見 真吾

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    Authorship:Coinvestigator(s) 

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

  2. 新興感染症発生時における創薬加速のための数理情報基盤技術の確立

    Grant number:22K19829  2022 - 2023

    科学研究費助成事業  挑戦的研究(萌芽)

    岩見 真吾

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    Authorship:Principal investigator 

    Grant amount:\6500000 ( Direct Cost: \5000000 、 Indirect Cost:\1500000 )

  3. 異分野融合研究で解明するコロナ禍の当事者化

    Grant number:22H05215  2022 - 2023

    科学研究費助成事業  学術変革領域研究(A)

    岩見 真吾

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    Authorship:Principal investigator 

    Grant amount:\6900000 ( Direct Cost: \6000000 、 Indirect Cost:\900000 )

  4. Mathematical sciences in aging and diversity of hematopoietic stem cell

    Grant number:20H05042  2020.4 - 2022.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

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    Authorship:Principal investigator 

    Grant amount:\6240000 ( Direct Cost: \4800000 、 Indirect Cost:\1440000 )

  5. 遺伝子配列に刻まれた宿主と病原体の攻防を読み解くビックデータ生態学の創成

    Grant number:16H04845  2016 - 2020

    科学研究費助成事業  基盤研究(B)

    岩見 真吾

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    Authorship:Principal investigator 

    Grant amount:\17290000 ( Direct Cost: \13300000 、 Indirect Cost:\3990000 )

 

Teaching Experience (On-campus) 2

  1. 超分子機能学講究4

    2021

  2. 超分子機能学特論4

    2021

 

Social Contribution 2

  1. “数学”で医学を変えられるか?

    Role(s):Lecturer

    灘中学校・灘高等学校  灘中学校・灘高等学校  2021.10

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    Audience: Junior students, High school students

    Type:Visiting lecture

  2. 感染症はなぜ流行するんだろ?

    Role(s):Lecturer

    大阪府立泉陽高校(Zoom)  大阪府立泉陽高校(Zoom)  2021.6

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    Audience: High school students

    Type:Visiting lecture

Media Coverage 78

  1. 「感染症対策に数学的手法」 Newspaper, magazine

    読売新聞  24面  2023.6

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    Author:Myself 

  2. 「P/F 比と血液検査から COVID-19 の治療反応性を事前予測――日本生理学会レポート」 Internet

    m3.com オンライン  2023.5

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    Author:Myself 

  3. 「4日後再陰性でリスク1%以下 療養後に感染させる可能性」 Newspaper, magazine

    中日新聞  1面  2022.9

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    Author:Myself 

  4. 「隔離解除 計算で判断 名大など開発 「ウィズコロナ」見据え」 Newspaper, magazine

    毎日新聞  24面  2022.9

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    Author:Myself 

  5. 「肺炎治療薬などサル痘に有効か」 Newspaper, magazine

    神戸新聞  6面  2022.8

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    Author:Myself 

  6. 「既存薬3種類サル痘有効か」 Newspaper, magazine

    北海道新聞  26面  2022.8

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    Author:Myself 

  7. 「サル痘既存薬3種有効」 Newspaper, magazine

    東京新聞  3面  2022.8

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    Author:Myself 

  8. 「サル痘、既存薬有効か」 Newspaper, magazine

    秋田魁新報  3面  2022.8

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    Author:Myself 

  9. 「サル痘の治療薬候補 3 種類を発見」 Newspaper, magazine

    毎日新聞  2面  2022.8

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    Author:Myself 

  10. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    東奥日報  25面  2022.8

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    Author:Myself 

  11. 「サル痘肺炎治療薬有効か」 Newspaper, magazine

    岩手日報  4 面  2022.8

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    Author:Myself 

  12. 「サル痘、肺炎治療薬有効か」 Newspaper, magazine

    日本経済新聞  36面  2022.8

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    Author:Myself 

  13. 「サル痘に肺炎薬有効か」 Newspaper, magazine

    産経新聞東京  18面  2022.8

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    Author:Myself 

  14. 「サル痘に肺炎薬有効か」 Newspaper, magazine

    産経新聞大阪  19面  2022.8

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    Author:Myself 

  15. 「サル痘肺炎治療薬有効か」 Newspaper, magazine

    茨城新聞  4面  2022.8

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    Author:Myself 

  16. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    千葉日報  17面  2022.8

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    Author:Myself 

  17. 「3種の既存薬サル痘有効か」 Newspaper, magazine

    神奈川新聞  21面  2022.8

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    Author:Myself 

  18. 「肺炎治療薬などサル痘に有効か」 Newspaper, magazine

    埼玉新聞  15面  2022.8

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    Author:Myself 

  19. 「サル痘に既存薬有効か」 Newspaper, magazine

    新潟日報  29面  2022.8

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  20. 「サル痘既存3薬有効か」 Newspaper, magazine

    中日新聞  25面  2022.8

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    Author:Myself 

  21. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    中部経済新聞  13面  2022.8

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    Author:Myself 

  22. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    伊勢新聞  15面  2022.8

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    Author:Myself 

  23. 「サル痘にコロナ薬有効か」 Newspaper, magazine

    北日本新聞  27面  2022.8

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    Author:Myself 

  24. 「肺炎治療薬などサル痘に有効か」 Newspaper, magazine

    北國新聞  33面  2022.8

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    Author:Myself 

  25. 「サル痘肺炎治療薬有効か」 Newspaper, magazine

    福井新聞  4面  2022.8

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    Author:Myself 

  26. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    北陸中日新聞  27面  2022.8

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    Author:Myself 

  27. 「サル痘ウイルスに肺炎治療薬有効か」 Newspaper, magazine

    京都新聞  25 面  2022.8

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    Author:Myself 

  28. 「肺炎治療薬など3種サル痘に有効か」 Newspaper, magazine

    山陽新聞  4 面  2022.8

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    Author:Myself 

  29. 「3種の既存薬がサル痘に有効か」 Newspaper, magazine

    中国新聞  28面  2022.8

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    Author:Myself 

  30. 「サル痘肺炎治療薬有効か」 Newspaper, magazine

    日本海新聞  23面  2022.8

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    Author:Myself 

  31. 「抗コロナ薬など既存3種 サル痘治療に有効」

    四国新聞  5面  2022.8

  32. 「肺炎・新型コロナ・マラリア サル痘既存3薬有効か」 Newspaper, magazine

    愛媛新聞  3面  2022.8

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    Author:Myself 

  33. 「既存薬の3種サル痘に有効か」

    徳島新聞  20面  2022.8

  34. 「サル痘 肺炎治療薬有効?」 Newspaper, magazine

    西日本新聞  19面  2022.8

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    Author:Myself 

  35. 「肺炎治療薬などサル痘に有効か 候補3種絞り込み」

    長崎新聞  20面  2022.8

  36. 「肺炎治療の既存薬 サル痘に有効か」 Newspaper, magazine

    大分合同新聞  17面  2022.8

  37. 「サル痘に肺炎治療薬有効か」 Newspaper, magazine

    佐賀新聞  20面  2022.8

  38. 「肺炎治療薬などサル痘に有効か」 Newspaper, magazine

    熊本日日新聞  4面  2022.8

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    Author:Myself 

  39. 「肺炎治療薬などサル痘に有効か」 Newspaper, magazine

    沖縄タイムス  24面  2022.8

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    Author:Myself 

  40. 「サル痘、肺炎治療薬が有効か」 Newspaper, magazine

    共同通信社  2022.8

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    Author:Myself 

  41. 「既存の肺炎薬や新型コロナ薬、サル痘に効果か」 Internet

    朝日新聞デジタル  2022.8

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    Author:Myself 

  42. 「新型コロナのワクチン 効果を6タイプに分類」 Newspaper, magazine

    読売新聞東京本社版  3面  2022.8

  43. 「サル痘の治療薬候補 3 種類を発見」 Internet

    毎日新聞デジタル  2022.8

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    Author:Myself 

  44. 「ワクチン効果6タイプ」 Newspaper, magazine

    読売新聞大阪本社版  2面  2022.8

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  45. 「治験薬探し 治験の食い違いはなぜ」 Newspaper, magazine

    朝日新聞  28面  2021.11

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    Author:Myself 

  46. 「コロナ薬、治験早めれば増える?「投与は発症 2 日以内で」」 Internet

    朝日新聞オンライン  2021.10

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    Author:Myself 

  47. “Kyushu University investigate clinical trial design for the novel coronavirus infection with an eye on developing trial standard” Internet

    2021.9

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  48. 「不要な隔離期間、短縮」 Newspaper, magazine

    毎日新聞  11面  2021.9

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    Author:Myself 

  49. 「コロナ患者の隔離期間試算」 Newspaper, magazine

    読売新聞  6面  2021.8

  50. 「発症後すぐ調べ効率的に」 Newspaper, magazine

    毎日新聞  3面  2021.8

  51. 「名古屋大など、新型コロナの適切な隔離期間計算、シミュレーションソフト開発」 Newspaper, magazine

    化学工業日報  5面  2021.8

  52. 「コロナ薬 早期投与が鍵」 Newspaper, magazine

    山梨日日新聞  12面  2021.8

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  53. 「コロナ治療薬、早期投与かぎ」 Newspaper, magazine

    西日本新聞  9面  2021.8

  54. 「コロナ隔離期間の試算法開発」 Newspaper, magazine

    読売新聞  3面  2021.8

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    Author:Myself 

  55. 「コロナ薬効果の臨床治験 発症後早期投与が鍵」 Newspaper, magazine

    茨城新聞  17面  2021.8

  56. 「コロナ治療薬候補の効果確認 発症直後の早期投与が鍵」 Newspaper, magazine

    下野新聞  16面  2021.8

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    Author:Myself 

  57. 「コロナ薬治療 早期投与が鍵」 Newspaper, magazine

    神戸新聞  14面  2021.8

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    Author:Myself 

  58. 「治療薬の治験 早期投与が鍵」 Newspaper, magazine

    信濃毎日新聞  13面  2021.8

  59. 「コロナ薬 早期投与が鍵」 Newspaper, magazine

    埼玉新聞  13面  2021.8

  60. 「コロナ薬治験 早期投与が鍵 仮想システム活用し確認」 Newspaper, magazine

    琉球新報  17面  2021.8

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    Author:Myself 

  61. 「コロナ薬治療 早期投与が鍵」 Newspaper, magazine

    佐賀新聞  15面  2021.8

  62. 「コロナ薬 早期投与が鍵「バーチャル治験」で解明 」 Newspaper, magazine

    東奥日報  8面  2021.8

  63. 医療新世紀「コロナ薬、早期投与が鍵」 Newspaper, magazine

    千葉日報  14面  2021.8

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    Author:Myself 

  64. 医療新世紀「コロナ薬、早期投与が鍵」 Internet

    宮崎日日新聞オンライン  2021.8

  65. 医療新世紀「コロナ薬、早期投与が鍵」 Newspaper, magazine

    山口新聞  5面  2021.8

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    Author:Myself 

  66. 医療新世紀「コロナ治療薬 早期投与が鍵」

    デーリー東北  19面  2021.8

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    Author:Myself 

  67. 「新型コロナ治療薬は早期投与が鍵か 治験での効果確認で研究結果」 Internet

    京都新聞オンライン  2021.7

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    Author:Myself 

  68. 「コロナ患者隔離「10 日間は妥当」」 Internet

    中日新聞オンライン  2021.7

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  69. 「コロナ患者隔離「10 日間は妥当」」 Newspaper, magazine

    中日新聞  25面  2021.7

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  70. 「新型コロナ感染症の臨床試験シミュレータ開発」 Newspaper, magazine

    科学新聞  4面  2021.7

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    Author:Myself 

  71. 「コロナ治験、より早く」 Internet

    中日新聞オンライン  2021.7

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  72. 「ウイルス感染 陰性まで7~28日」 Newspaper, magazine

    読売新聞  3面  2021.7

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  73. 「ウイルス残る期間は7~28日程度、個人差あり臨床試験の「壁」に」 Internet

    読売新聞オンライン  2021.7

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    Author:Myself 

  74. 「数理モデルによる臨床試験シミュレータを開発」 Internet

    日本経済新聞オンライン  2021.7

  75. 「コロナ治験、より早く」 Newspaper, magazine

    中日新聞  2面  2021.7

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  76. 「薬がよく効くのは発症後2日程度」 Newspaper, magazine

    朝日新聞  22面  2021.4

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  77. 「薬がよく効くのは発症後2日程度」 Internet

    朝日新聞オンライン  2021.4

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  78. 「有効性見極め難しく」 Newspaper, magazine

    東京新聞  12 面  2021.4

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