Updated on 2026/03/24

写真a

 
AKATSUKA, Shinya
 
Organization
Graduate School of Medicine Program in Integrated Medicine Pathology Lecturer
Graduate School
Graduate School of Medicine
Undergraduate School
School of Medicine
Title
Lecturer
Contact information
メールアドレス

Degree 2

  1. 工学修士 ( 1993.3   慶應義塾大学 ) 

  2. Ph.D. in Medicine ( 2007.3   Kyoto University ) 

Research Interests 7

  1. oxidative stress

  2. iron

  3. carcinogenesis

  4. renal cell carcinoma

  5. DNA damage

  6. genomic alteration

  7. ferroptosis

Research Areas 2

  1. Life Science / Experimental pathology

  2. Life Science / Laboratory animal science

Current Research Project and SDGs 1

  1. Analysis of distribution dynamics of DNA damage and mutation in the genome during carcinogenesis

Research History 3

  1. 名古屋大学医学系研究科 分子病理診断学 講師

    2012.11

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    Country:Japan

  2. 名古屋大学医学系研究科 分子病理診断学 助教

    2008.7 - 2012.10

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    Country:Japan

  3. 日本電気株式会社(NEC)

    1993.4 - 2001.1

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    Country:Japan

Education 3

  1. Kyoto University   Graduate School, Division of Medicine

    2002.4 - 2006.3

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    Country: Japan

  2. Keio University   Graduate School, Division of Science and Engineering

    1991.4 - 1993.3

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    Country: Japan

  3. Keio University   Faculty of Science and Engineering

    1987.4 - 1991.3

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    Country: Japan

 

Papers 64

  1. Ferroptosis resistance determines high susceptibility of murine A/J strain to iron-induced renal carcinogenesis. Reviewed Open Access

    Cheng Z, Akatsuka S, Li GH, Mori K, Takahashi T, Toyokuni S

    Cancer science   Vol. 113 ( 1 ) page: 65 - 78   2022.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/cas.15175

    PubMed

  2. Augmented oxidative stress increases 8-oxoguanine preferentially in the transcriptionally active genomic regions. Open Access

    Akatsuka S, Li GH, Kawaguchi S, Takahashi T, Yoshihara M, Suyama M, Toyokuni S

    Free radical research   Vol. 54 ( 11-12 ) page: 872 - 882   2020.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/10715762.2020.1733548

    PubMed

  3. Lunar life drives jawbone formation. Reviewed

    Sato K, Kouyama N, Akatsuka S, Motooka Y, Wang Q, Hibi H, Toyokuni S.

    Journal of Dental Sciences   Vol. 20 ( 4 ) page: 2399 - 2406   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jds.2025.03.032

  4. Iron-catalyzed oxidative stress compromises cancer promotional effect of BRCA2 haploinsufficiency through mitochondria-targeted ferroptosis Reviewed

    Maeda Y, Motooka Y, Akatsuka S, Tanaka H, Mashimo T, Toyokuni S.

    Redox Biology   Vol. 85 ( 103739 ) page: 1 - 13   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.redox.2025.103739

  5. Susceptibility of Brca1<sup>(L63X/+)</sup> rat to ovarian reserve dissipation by chemotherapeutic agents to breast cancer. Reviewed

    Kaseki S, Sonehara R, Motooka Y, Tanaka H, Nakamura T, Osuka S, Akatsuka S, Kajiyama H, Mashimo T, Imaoka T, Toyokuni S.

    Cancer science   Vol. 116 ( 4 ) page: 1139 - 1152   2025.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/cas.16412

    DOI: 10.1111/cas.16412

  6. Elaborate cooperation of poly(rC)-binding proteins 1/2 and glutathione in ferroptosis induced by plasma-activated Ringer's lactate. Reviewed

    Jiang L, Zheng H, Ishida M, Lyu Q, Akatsuka S, Motooka Y, Sato K, Sekido Y, Nakamura K, Tanaka H, Ishikawa K, Kajiyama H, Mizuno M, Hori M, Toyokuni S.

      Vol. 214   page: 28 - 41   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.freeradbiomed.2024.02.001

  7. BRCA1 haploinsufficiency impairs iron metabolism to promote chrysotile-induced mesothelioma via ferroptosis resistance. Reviewed

    Luo Y, Akatsuka S, Motooka Y, Kong Y, Zheng H, Mashimo T, Imaoka T, Toyokuni S.

    Cancer science   Vol. 114 ( 4 ) page: 1423 - 1436   2023.4

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/cas.15705

  8. Environmental impact on carcinogenesis under BRCA1 haploinsufficiency. Invited Reviewed Open Access

    Toyokuni S, Kong Y, Motooka Y, Akatsuka S.

    Genes Environ   Vol. 45 ( 1 ) page: 2   2023.1

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s41021-023-00258-5

    Open Access

  9. Iron as spirit of life to share under monopoly. Invited Reviewed Open Access

    Toyokuni S, Kong Y, Zheng H, Maeda Y, Motooka Y, Akatsuka S.

    J Clin Biochem Nutr   Vol. 71 ( 2 ) page: 78 - 88   2022.9

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    Authorship:Last author   Language:English  

    DOI: 10.3164/jcbn.22-43

    Open Access

  10. BRCA1 haploinsufficiency promotes chromosomal amplification under Fenton reaction-based carcinogenesis through ferroptosis-resistance. Reviewed Open Access

    Kong Y, Akatsuka S, Motooka Y, Zheng H, Cheng Z, Shiraki Y, Mashimo T, Imaoka T, Toyokuni S.

    Redox biology   Vol. 54 ( 102356 ) page: 1 - 13   2022.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.redox.2022.102356

    Open Access

  11. Prognostic significance of the MDM2/HMGA2 ratio and histological tumor grade in dedifferentiated liposarcoma.

    Yamashita K, Kohashi K, Yamada Y, Akatsuka S, Ikuta K, Nishida Y, Toyokuni S, Oda Y

    Genes, chromosomes & cancer   Vol. 60 ( 1 ) page: 26 - 37   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/gcc.22899

    PubMed

  12. Defective biosynthesis of ascorbic acid in Sod1-deficient mice results in lethal damage to lung tissue.

    Homma T, Takeda Y, Nakano T, Akatsuka S, Kinoshita D, Kurahashi T, Saitoh S, Yamada KI, Miyata S, Asao H, Goto K, Watanabe T, Watanabe M, Toyokuni S, Fujii J

    Free radical biology & medicine   Vol. 162   page: 255 - 265   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.freeradbiomed.2020.10.023

    PubMed

  13. Carcinogenesis as Side Effects of Iron and Oxygen Utilization: From the Unveiled Truth toward Ultimate Bioengineering. Open Access

    Toyokuni S, Kong Y, Cheng Z, Sato K, Hayashi S, Ito F, Jiang L, Yanatori I, Okazaki Y, Akatsuka S

    Cancers   Vol. 12 ( 11 )   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/cancers12113320

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    PubMed

  14. Novel ovarian endometriosis model causes infertility via iron-mediated oxidative stress in mice.

    Hayashi S, Nakamura T, Motooka Y, Ito F, Jiang L, Akatsuka S, Iwase A, Kajiyama H, Kikkawa F, Toyokuni S

    Redox biology   Vol. 37   page: 101726   2020.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.redox.2020.101726

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  15. Asbestos conceives Fe(II)-dependent mutagenic stromal milieu through ceaseless macrophage ferroptosis and β-catenin induction in mesothelium. Open Access

    Ito F, Yanatori I, Maeda Y, Nimura K, Ito S, Hirayama T, Nagasawa H, Kohyama N, Okazaki Y, Akatsuka S, Toyokuni S

    Redox biology   Vol. 36   page: 101616   2020.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.redox.2020.101616

    Open Access

    PubMed

  16. Overexpression of miR-199/214 is a distinctive feature of iron-induced and asbestos-induced sarcomatoid mesothelioma in rats. Open Access

    Okazaki Y, Chew SH, Nagai H, Yamashita Y, Ohara H, Jiang L, Akatsuka S, Takahashi T, Toyokuni S

    Cancer science   Vol. 111 ( 6 ) page: 2016 - 2027   2020.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/cas.14405

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    PubMed

  17. Frequent homozygous deletion of Cdkn2a/2b in tremolite-induced malignant mesothelioma in rats. Open Access

    Okazaki Y, Misawa N, Akatsuka S, Kohyama N, Sekido Y, Takahashi T, Toyokuni S

    Cancer science   Vol. 111 ( 4 ) page: 1180 - 1192   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/cas.14358

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  18. <i>Mth1</i> deficiency provides longer survival upon intraperitoneal crocidolite injection in female mice.

    Funahashi S, Okazaki Y, Akatsuka S, Takahashi T, Sakumi K, Nakabeppu Y, Toyokuni S

    Free radical research   Vol. 54 ( 2-3 ) page: 195 - 205   2020.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/10715762.2020.1743285

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  19. Superiority of rat over murine model for studies on the evolution of cancer genome Open Access

    Akatsuka S, Li GH, Toyokuni S.

    Free Radic Res.   Vol. 52 ( 11-12 ) page: 1323 - 1327   2018.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/10715762.2018.1467562

    PubMed

  20. Expression of P-REX2a is associated with poor prognosis in endometrial malignancies. Reviewed

    Takeshita S, Yamashita Y, Shiomi K, Suzuki N, Yoshida J, Naiki-Ito A, Suzuki S, Akatsuka S, Toyokuni S, Takahashi T, Mase S, Arakawa A, Sugiura-Ogasawara M, Takahashi S

    Oncotarget   Vol. 9 ( 37 ) page: 24778-24786   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.18632/oncotarget.25349

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  21. Fenton reaction-induced renal carcinogenesis in Mutyh-deficient mice exhibits less chromosomal aberrations than the rat model. Open Access

    Li GH, Akatsuka S, Chew SH, Jiang L, Nishiyama T, Sakamoto A, Takahashi T, Futakuchi M, Suzuki H, Sakumi K, Nakabeppu Y, Toyokuni S.

    Pathol Int.   Vol. 67 ( 11 ) page: 564 - 574   2017.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/pin.12598

    Open Access

    PubMed

  22. Iron and thiol redox signaling in cancer: An exquisite balance to escape ferroptosis. Open Access

    Toyokuni S, Ito F, Yamashita K, Okazaki Y, Akatsuka S.

    Free Radic Biol Med.   Vol. 108   page: 610 - 626   2017.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.freeradbiomed.2017.04.024

    Open Access

    PubMed

  23. Rheostatic CD44 isoform expression and its association with oxidative stress in human malignant mesothelioma.

    Chew SH, Okazaki Y, Akatsuka S, Wang S, Jiang L, Ohara Y, Ito F, Saya H, Sekido Y, Toyokuni S

    Free radical biology & medicine   Vol. 106   page: 91 - 99   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.freeradbiomed.2017.02.011

    PubMed

  24. Rheostatic CD44 isoform expression and its association with oxidative stress in human malignant mesothelioma. Reviewed

    Chew SH, Okazaki Y, Akatsuka S, Wang S, Jiang L, Ohara Y, Ito F, Saya H, Sekido Y, Toyokuni S.

    Free Radic Biol Med   Vol. 106   page: 91-99   2017.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.freeradbiomed.2017.02.011

  25. Urokinase-type plasminogen activator receptor promotes proliferation and invasion with reduced cisplatin sensitivity in malignant mesothelioma. Reviewed

    Wang S, Jiang L, Han Y, Chew SH, Ohara Y, Akatsuka S, Weng L, Kawaguchi K, Fukui T, Sekido Y, Yokoi K, Toyokuni S.

    Oncotarget   Vol. 7 ( 43 ) page: 69565-69578   2016.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.chemosphere.2016.08.124

  26. Dual preventive benefits of iron elimination by desferal in asbestos-induced mesothelial carcinogenesis. Reviewed

    Jiang L, Chew SH, Nakamura K, Ohara Y, Akatsuka S, Toyokuni S.

    Cancer Sci   Vol. 107 ( 7 ) page: 908-915   2016.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1684/ejd.2012.1679

  27. Pain-reducing anesthesia prevents oxidative stress in human term placenta. Reviewed

    Tsuzuki Y, Yamashita Y, Hattori Y, Li GH, Akatsuka S, Kotani T, Kikkawa F, Naiki-Ito A, Takahashi S, Nishiwaki K, Toyokuni S.

    J Clin Biochem Nutr   Vol. 58 ( 2 ) page: 156-160   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3164/jcbn.15-138

  28. Genome-wide Profiling of 8-Oxoguanine Reveals Its Association with Spatial Positioning in Nucleus. Reviewed

    Yoshihara M, Jiang L, Akatsuka S, Suyama M, Toyokuni S.

    DNA Res.   Vol. 21 ( 6 ) page: 603-612   2014.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/dnares/dsu023

  29. Connective tissue growth factor and β-catenin constitute an autocrine loop for activation in rat sarcomatoid mesothelioma. Reviewed

    Jiang L, Yamashita Y, Chew SH, Akatsuka S, Ukai S, Wang S, Nagai H, Okazaki Y, Takahashi T, Toyokuni S.

    J Pathol.   Vol. 233 ( 4 ) page: 402-414   2014.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/path.4377

  30. Expression of chromobox homolog 7 (CBX7) is associated with poor prognosis in ovarian clear cell adenocarcinoma via TRAIL-induced apoptotic pathway regulation. Reviewed

    Shinjo K, Yamashita Y, Yamamoto E, Akatsuka S, Uno N, Kamiya A, Niimi K, Sakaguchi Y, Nagasaka T, Takahashi T, Shibata K, Kajiyama H, Kikkawa F, Toyokuni S.

    Int J Cancer.   Vol. 135 ( 2 ) page: 308-218   2014.7

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  31. Cancer-promoting role of adipocytes in asbestos-induced mesothelial carcinogenesis through dysregulated adipocytokine production. Reviewed

    Chew SH, Okazaki Y, Nagai H, Misawa N, Akatsuka S, Yamashita K, Jiang L, Yamashita Y, Noguchi M, Hosoda K, Sekido Y, Takahashi T, Toyokuni S.

    Carcinogenesis   Vol. 35 ( 1 ) page: 164-172   2014.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/carcin/bgt267

  32. Met is the most frequently amplified gene in endometriosis-associated ovarian clear cell adenocarcinoma and correlates with worsened prognosis. Reviewed Open Access

    Yamashita Y, Akatsuka S, Shinjo K, Yatabe Y, Kobayashi H, Seko H, Kajiyama H, Kikkawa F, Takahashi T, Toyokuni S.

    PLoS One   Vol. 8 ( 3 ) page: e57724   2013.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1371/journal.pone.0057724

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  33. Metamorphosis of mesothelial cells with active horizontal motility in tissue culture. Reviewed

    Nagai H, Chew SH, Okazaki Y, Funahashi S, Namba T, Kato T, Enomoto A, Jiang L, Akatsuka S, Toyokuni S.

    Sci Rep   Vol. 3   page: 1144   2013.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/srep01144

  34. Iron overload signature in chrysotile-induced malignant mesothelioma. Reviewed

    Jiang L, Akatsuka S, Nagai H, Chew SH, Ohara H, Okazaki Y, Yamashita Y, Yoshikawa Y, Yasui H, Ikuta K, Sasaki K, Kohgo Y, Hirano S, Shinohara Y, Kohyama N, Takahashi T, Toyokuni S.

    J Pathol   Vol. 228 ( 3 ) page: 366-377   2012.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/path.4075

  35. Fenton reaction induced cancer in wild type rats recapitulates genomic alterations observed in human cancer. Reviewed Open Access

    Akatsuka S, Yamashita Y, Ohara H, Liu YT, Izumiya M, Abe K, Ochiai M, Jiang L, Nagai H, Okazaki Y, Murakami H, Sekido Y, Arai E, Kanai Y, Hino O, Takahashi T, Nakagama H, Toyokuni S.

    PLoS One   Vol. 7 ( 8 ) page: e43403   2012.8

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1371/journal.pone.0043403

    Open Access

  36. The ferroimmunomodulatory role of ectopic endometriotic stromal cells in ovarian endometriosis. Reviewed

    Kobayashi H, Yamashita Y, Iwase A, Yoshikawa Y, Yasui H, Kawai Y, Uchida K, Uno N, Akatsuka S, Takahashi T, Kikkawa F, Toyokuni S.

    Fertil Steril   Vol. 98 ( 2 ) page: 415-422   2012.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fertnstert.2012.04.047

  37. Genome-wide assessment of oxidatively generated DNA damage. Invited Reviewed

    Akatsuka S, Toyokuni S.

    Free Radic Res   Vol. 46 ( 4 ) page: 523-530   2012.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3109/10715762.2011.633212

  38. Diameter and rigidity of multiwalled carbon nanotubes are critical factors in mesothelial injury and carcinogenesis. Reviewed

    Nagai H, Okazaki Y, Chew SH, Misawa N, Yamashita Y, Akatsuka S, Ishihara T, Yamashita K, Yoshikawa Y, Yasui H, Jiang L, Ohara H, Takahashi T, Ichihara G, Kostarelos K, Miyata Y, Shinohara H, Toyokuni S.

    Proc Natl Acad Sci U S A.   Vol. 108 ( 49 ) page: E1330-E1338   2011.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1073/pnas.1110013108

  39. Free calvarial periosteum graft vascularized by an omental flap in a rat model. Reviewed

    Nakazato K, Toriyama K, Hishida M, Takanari K, Yagi S, Yamashita Y, Akatsuka S, Hayakawa A, Kamei Y.

    Ann Plast Surg   Vol. 67 ( 6 ) page: 649-654   2011.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1097/SAP.0b013e31820456fe

  40. Age- and sun exposure-dependent differences in 8-hydroxy-2'-deoxyguanosine and N-(carboxymethyl)lysine in human epidermis. Reviewed

    Toyokuni S, Hirao A, Wada T, Nagai R, Date A, Yoshii T, Akatsuka S, Yamashita Y, Kawada A.

    J Clin Biochem Nutr   Vol. 49 ( 2 ) page: 121-124   2011.9

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  41. XCR1 expression and biased VH gene usage are distinct features of diffuse large B-cell lymphoma initially manifesting in the bone marrow. Reviewed

    Yamashita Y, Kajiura D, Tang L, Hasegawa Y, Kinoshita T, Nakamura S, Akatsuka S, Toyokuni S, Mori N.

    Am J Clin Pathol   Vol. 135 ( 4 ) page: 556-564   2011.4

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  42. LATS2 Is a Tumor Suppressor Gene of Malignant Mesothelioma Reviewed

    Murakami H, Mizuno T, Taniguchi T, Fujii M, Ishiguro F, Fukui T, Akatsuka S, Horio Y, Hida T, Kondo Y, Toyokuni S, Osada H, Sekido Y.

    Cancer Res.   Vol. 71 ( 3 ) page: 873-883   2011.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1158/0008-5472.CAN-10-2164

  43. Stage-specific roles of fibulin-5 during oxidative stress-induced renal carcinogenesis in rats Reviewed

    Ohara H, Akatsuka S, Nagai H, Liu YT, Jiang L, Okazaki Y, Yamashita Y, Nakamura T, Toyokuni S.

    Free Radic Res   Vol. 45 ( 2 ) page: 211-220   2011.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3109/10715762.2010.523702

  44. Genome-scale approaches to investigate oxidative DNA damage Reviewed

    Akatsuka S, Toyokuni S.

    J Clin Biochem Nutr   Vol. 47 ( 2 ) page: 91-97   2010.9

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    Authorship:Lead author   Language:English  

    DOI: 10.3164/jcbn.10-38R

  45. Suppression of SLC11A2 expression is essential to maintain duodenal integrity during dietary iron overload Reviewed

    Shirase T, Mori K, Okazaki Y, Itoh K, Yamamoto M, Tabuchi M, Kishi F, Jiang L, Akatsuka S, Nakao K, Toyokuni S.

    Am J Pathol   Vol. 177 ( 2 ) page: 677-685   2010.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2353/ajpath.2010.090823

  46. *A quantitative trait locus responsible for inducing B‐cell lymphoblastic lymphoma is a hotspot for microsatellite instability Reviewed

    Kaszynski RH, Akatsuka S, Hiratsuka T, Jin G, Ozeki M, Okuno T, Nakamura T, Manabe T, Takakuwa T, Hiai H, Toyokuni S, Tamaki K, Tsuruyama T.

    Cancer Sci   Vol. 101 ( 3 ) page: 800-805   2010.3

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  47. Homozygous deletion of CDKN2A/2B is a hallmark of iron-induced high-grade rat mesothelioma. Reviewed

    Hu Q, Akatsuka S, Yamashita Y, Ohara H, Nagai H, Okazaki Y, Takahashi T, Toyokuni S.

    Lab Invest   Vol. 90 ( 3 ) page: 360-373   2010.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/labinvest.2009.140

  48. Genome-wide analysis identifies a tumor suppressor role for aminoacylase 1 in iron-induced rat renal cell carcinoma. Reviewed

    Zhong Y, Onuki J, Yamasaki T, Ogawa O, Akatsuka S, Toyokuni S.

    Carcinogenesis   Vol. 30 ( 1 ) page: 158-164   2009.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/carcin/bgn255

  49. Characteristics and modifying factors of asbestos-induced oxidative DNA damage Reviewed

    Jiang L, Nagai H, Ohara H, Hara S, Tachibana M, Hirano S, Shinohara Y, Kohyama N, Akatsuka S, Toyokuni S

    Cancer Sci   Vol. 99 ( 11 ) page: 2142-2151   2008.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/j.1349-7006.2008.00934.x

  50. *Chronic oxidative stress causes amplification and overexpression of ptprz1 protein tyrosine phosphatase to activate beta-catenin pathway Reviewed

    Liu YT, Shang D, Akatsuka S, Ohara H, Dutta KK, Mizushima K, Naito Y, Yoshikawa T, Izumiya M, Abe K, Nakagama H, Noguchi N, Toyokuni S

    Am J Pathol   Vol. 171 ( 6 ) page: 1978-1988   2007.12

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  51. Association of microRNA-34a overexpression with proliferation is cell type-dependent Reviewed

    Dutta KK, Zhong Y, Liu YT, Yamada T, Akatsuka S, Hu Q, Yoshihara M, Ohara H, Takehashi M, Shinohara T, Masutani H, Onuki J, Toyokuni S

    Cancer Sci   Vol. 98 ( 12 ) page: 1845-1852   2007.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/j.1349-7006.2007.00619.x

  52. Pathological investigation of oxidative stress in the post-genomic era Reviewed

    Toyokuni S, Akatsuka S.

    Pathol Int   Vol. 57 ( 8 ) page: 461-473   2007.12

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    Language:English  

    DOI: 10.1111/j.1440-1827.2007.02127.x

  53. Novel screening method for ultraviolet protection: combination of a human skin-equivalent model and 8-hydroxy-2'-deoxyguanosine Reviewed

    Toyokuni S, Yasui H, Date A, Hakozaki T, Akatsuka S, Kohda H, Yoshii T, Sakurai H

    Pathol Int   Vol. 56 ( 12 ) page: 760-762   2006.12

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  54. Deletion and single nucleotide substitution at G:C in the kidney of gpt delta transgenic mice after ferric nitrilotriacetate treatment Reviewed

    Jiang L, Zhong Y, Akatsuka S, Liu Y-T, Dutta KK, Lee W-H, Onuki J, Masymura K, Nohmi T, Toyokuni S

    Cancer Sci   Vol. 97 ( 11 ) page: 1159-1167   2006.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/j.1349-7006.2006.00301.x

  55. *Contrasting genome-wide distribution of 8-hydroxyguanine and acrolein-modified adenine during oxidative stress-induced renal carcinogenesis. Reviewed

    Akatsuka S, Aung TT, Dutta KK, Jiang L, Lee W-H, Liu Y-T, Onuki J, Shirase T, Yamasaki K, Ochi H, Naito Y, Yoshikawa T, Kasai H, Tominaga Y, Sakumi K, Nakabeppu Y, Kawai Y, Uchida K, Yamasaki A, Tsuruyama T, Yamada Y, Toyokuni S

    Am J Pathol   Vol. 169 ( 4 ) page: 1328-1342   2006.10

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    DOI: 10.1002/gps.2346

  56. Alpha-tocopherol induces calnexin in renal tubular cells: another protective mechanism against free radical-induced cellular damage Reviewed

    Lee W-H, Akatsuka S, Shirase T, Dutta KK, Jiang L, Liu Y-T, Onuki J, Yamada Y, Okawa K, Wada Y, Watanabe A, Kohro T, Noguchi N, Toyokuni S

    Arch Biochem Biophys   Vol. 453 ( 2 ) page: 168-178   2006.9

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  57. What has been learned from the studies of oxidative stress-induced carcinogenesis: proposal of the concept of oxygenomics Reviewed

    Toyokuni S, Akatsuka S.

    J Clin Biochem Nutr   Vol. 39 ( 1 ) page: 3-10   2006.7

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    DOI: 10.3164/jcbn.39.3

  58. Susceptibility of actin to modification by 4-hydroxy-2-nonenal Reviewed

    Ozeki M, Miyagawa-Hayashino A, Akatsuka S, Shirase T, Lee W-H, Uchida K, Toyokuni S

    J Chromatogr B Analyt Technol Biomed Life Sci   Vol. 827 ( 1 ) page: 119-126   2005.11

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    DOI: 10.1016/j.jchromb.2005.02.025

  59. Two distinct mechanisms for loss of thioredoxin-binding protein-2 in oxidative stress-induced renal carcinogenesis Reviewed

    Dutta KK, Nishinaka Y, Masutani H, Akatsuka S, Aung TT, Shirase T, Lee W-H, Yamada Y, Hiai H, Yodoi J, Toyokuni S

    Lab Invest   Vol. 85 ( 6 ) page: 798-807   2005.6

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    DOI: 10.1038/labinvest.3700280

  60. Redox regulation of annexin 2 and its implications for oxidative stress-induced renal carcinogenesis and metastasis Reviewed

    Tanaka T, Akatsuka S, Ozeki M, Shirase T, Hiai H, Toyokuni S

    Oncogene   Vol. 23 ( 22 ) page: 3980-3989   2004.5

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    DOI: 10.1038/sj.onc.1207555

  61. Detection of glyceraldehyde 3-phosphate dehydrogenase messenger RNA using a peptide nucleic acid probe in paraffin-embedded archival specimens Reviewed

    Hiroyasu M, Akatsuka S, Shirase T, Toda Y, Hiai H, Toyokuni S

    Pathol Int   Vol. 54 ( 4 ) page: 251-255   2004.4

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    DOI: 10.1111/j.1440-1827.2004.01620.x

  62. Effects of phenolic contents of Mauritian endemic plant extracts on promoter activities of antioxidant enzymes Reviewed

    Toyokuni S, Tanaka T, Kawaguchi W, Fang NRL, Ozeki M, Akatsuka S, Hiai H, Aruoma OI, Bahorun T

    Free Radic Res   Vol. 37 ( 11 ) page: 1215-1224   2003.11

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  63. Intermittent microwave irradiation facilitates antigen-antibody reaction in Western blot analysis Reviewed

    Toyokuni S, Kawaguchi W, Akatsuka S, Hiroysu M, Hiai H

    Pathol Int   Vol. 53 ( 4 ) page: 259-261   2003.4

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    DOI: 10.1046/j.1320-5463.2003.01465.x

  64. Temperature dependencies of spreading coefficients of hydrocarbons on water Reviewed

    Akatsuka S, Yoshigiwa H, Mori YH

    J Colloid Interf Sci   Vol. 172 ( 2 ) page: 335-340   1995.6

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    DOI: 10.1006/jcis.1995.1261

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Books 9

  1. 第1章 基礎編 25.発がんと酸化ストレス

    赤塚慎也,豊國伸哉( Role: Joint author)

    診断と治療社(酸化ストレスの医学 改訂第3版,213-220頁)  2024.5 

  2. 第II部 腎臓 第3章 腎がんモデル

    赤塚慎也,豊國伸哉( Role: Joint author)

    エル・アイ・シー(モデル動物の作製と利用-循環器疾患 2021 下巻,159-168頁)  2021.12 

  3. 第5章 第1節 酸化ストレス

    赤塚慎也,豊國伸哉( Role: Joint author)

    エヌ・ティー・エス(生命金属ダイナミクス,207-214頁)  2021.1 

  4. 酸化ストレスによる発がんとゲノム変化

    赤塚慎也、豊國伸哉( Role: Joint author)

    別冊・医学のあゆみ「レドックスUPDATE」 162-167頁  2015.7 

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    Language:Japanese

  5. 発がんと酸化ストレス

    赤塚慎也,豊國伸哉( Role: Joint author)

    診断と治療社 (酸化ストレスの医学 改訂第2版 169-175頁)  2014.9 

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    Language:Japanese

  6. 酸化ストレスによるゲノム変化と発がん

    赤塚慎也,豊國伸哉( Role: Joint author)

    羊土社(実験医学 30巻 17号 2779-2785頁)  2012.11 

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  7. 鉄・酸化ストレスによる発癌の分子機構を探る

    赤塚慎也,豊國伸哉( Role: Joint author)

    先端医学社(分子消化器病 5巻 1号 39-48頁)  2008.3 

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  8. 生体金属と活性酸素・フリーラジカル

    赤塚慎也,豊國伸哉( Role: Joint author)

    アグネ技術センター(金属 77巻 3号 305-310頁)  2007.3 

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  9. オキシゲノミクス-酸化ストレス発癌とゲノム

    赤塚慎也,豊國伸哉( Role: Joint author)

    医歯薬出版株式会社(別冊・医学のあゆみ「酸化ストレス Ver.2」 16-19頁)  2006.10 

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

  1. 多種および多系統の動物を用いた鉄関連酸化ストレス発がん過程の解明

    Grant number:24K10356  2024.4 - 2027.3

    科学研究費助成事業  基盤研究(C)

    赤塚 慎也

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    鉄ニトリロ三酢酸(Fe-NTA)誘発げっ歯類腎発がんモデルは、鉄を介する酸化ストレスという、ヒト発がんにおいて普遍的と考えられる刺激因子を背景に、動物個体にがんを発生させるものである。このモデルでは、発がん過程に長い期間をかけるため、通常のヒトがんの発生過程との共通性が高くなっている。本研究では、複数のマウス・ラット系統を用いて、発がん試験のためのFe-NTA投与プロトコルを再施行し、前がん病変の形成過程を解析する。種間および系統間で、染色体ゲノム変化およびフェロトーシス耐性獲得の過程の違いを分析することにより、がん発生に決定的となる過程とその条件を明らかにする。
    動物発がんモデルにおいて、ヒトの発がん過程との共通性を確保することは重要である。申請者がこれまで長く取り組んできた鉄ニトリロ三酢酸(Fe-NTA)誘発げっ歯類腎発がんモデルは、鉄を介する酸化ストレスという、ヒト発がんにおいて普遍的と考えられる刺激因子を背景に、動物個体にがんを発生させるものである。基本的には野生型の動物を用いて、発がん過程に長い期間をかけるモデルであり、そのためかえって通常のヒトがんの発生過程との共通性が高くなっている。本研究では、複数のマウス・ラット系統を用いて、発がん試験のためのFe-NTA投与プロトコルを再施行し、前がん病変の形成過程を解析する。種間および系統間で、染色体ゲノム変化およびフェロトーシス耐性獲得の過程の違いを分析することにより、がん発生に決定的となる過程とその条件を明らかにする。
    本研究計画では、3つのマウス系統(C57BL/6, A/J, ddY)および2つのラット系統(SD, F344)を用いてFe-NTA誘発発がん過程の解析を行う。これらの動物種および系統を用いた当研究室におけるこれまでの発がん実験から得られたデータを踏まえ、薬剤投与期間中および投与期間終了時点での、標的組織細胞で生じるフェロトーシス耐性の獲得および染色体ゲノム変化の違いに着目する。異系統間および異種間での比較により、哺乳動物での発がん機構および発がん防御機構の普遍的要素を究明する。
    現在、2つのマウス系統(C57BL/6, A/J)および2つラット系統(SD, F344)、さらに1つのラット1代雑種(F344 x BN)について腎発がんプロトコルとしてFe-NTA3か月反復投与が終了済み。それらの試験個体から得た腎臓組織サンプルよりゲノムDNAを抽出し、その変化動態を解析中。
    延長申請により本年度が最終年度となっていた研究課題(基盤研究(C))と同時進行であったことと、年度中(12月初)に研究代表者が左手首骨折という怪我に見舞われ、実験作業が不可能な期間があったことのために、当初の計画に対して多少の遅れが生じた。
    また、実験項目での具体的な問題としては、標的臓器の一部分の組織から得られたゲノム試料をバルクで解析する限り、クローンの拡大は頻度高く検出されないことが、ある程度明らかとなった。そのため、シングルセルレベルでの解析法の検討が重要な課題となった。デジタルPCRによる通常のコピー数解析を継続することをしつつ、より効率的な解析方法の調査に時間を費やした。
    デジタルPCRによる組織切片単位でのコピー数解析の結果を踏まえて、シングルセルレベルでの解析法を検討する。組織レベルの解析についても、実験作業のルーチン化により処理効率を高め、臓器内の広い範囲を検索して、個体全体における確率的イベントの発生を検出する機会を得られるようにする。次いで、各サンプルについてフェロトーシス抵抗性獲得状況の解析を開始する。グルタチオンレベルやGPX4活性について評価し、ゲノム変化(クローン拡大)状況との関連性を検討する。これらの解析により、ある程度の差が見られるサンプル群について、RNA-seqによる網羅的解析を実施する。
    また、今年度に手首骨折のために時間的に十分な実験量を確保できなかった分、次年度は全研究期間の中では多めに研究のための時間を割くことにし、計画の遅れを取り戻すようにする。

  2. Elucidation of the real picture of DNA damage/repair dynamics in carcinogenesis

    Grant number:20K07588  2020.4 - 2025.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Akatsuka Shinya

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

    Genomic DNA damage mainly caused by reactive oxygen species is considered to lead to carcinogenesis. In order to analyze the pathway of cancer development in detail, it is important to know the distribution dynamics of DNA damage in the cellular genome during the process of carcinogenesis. In this study, we established a method of comprehensive analysis of genomic fragments immunoprecipitated with antibodies against damaged DNA as a new application based on next-generation sequencing, and attempted to elucidate the real picture of distribution dynamics of the DNA damage during carcinogenesis process. Furthermore, we attempted to analyze the frequency of mutations in the genome of target organ cells and the expansion process of mutant cell clones under continuous carcinogenic stimuli. Overall, we observed the genome alteration dynamics as a stepwise development in the time sequence of carcinogenesis process.

  3. Analyses based on iron dynamics and multiomics to overcome oxidative stress-induced carcinogenesis

    Grant number:17H04064  2017.4 - 2020.3

    Toyokuni Shinya

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    This project was planned to establish a basis for novel cancer prevention by evaluating iron dynamics multidimensionally. We established the concept of ferroptosis, as catalytic Fe(II)-dependent regulated necrosis, based on our experience of iron-induced carcinogenesis. We used phlebotomy to remove excess iron in crocidolite-induced mesothelial carcinogenesis, which significantly prolonged survival and reduced tumor burden. We used knockout (KO) mice of 3 repair genes for 8-oxoguanine (Ogg1, Mutyh and Mth1) and found that Mutyh KO showed a tendency to increase iron-induced renal carcinogenesis whereas Mth1 KO significantly reduced crocidolite-induced malignant mesothelioma (MM) in females. MM induction by crocidolite was delayed in Dmt1 transgenic mice. We also found that carbonic anhydrase 9 (CA9) confers ferroptosis-resistance to MM cells in hypoxia. Thus, CA9 can be another target for cancer therapy. In conclusion, iron metabolism regulates not only carcinogenesis but tumor biology.

  4. 発がん過程におけるDNA損傷・修復のゲノム内分布動態の解明

    2010 - 2012

    科学研究費補助金  基盤研究(C),課題番号:22500997

    赤塚慎也

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  5. 酸化ストレス誘発動物発癌モデルにおける染色体変化の解析

    2007 - 2008

    科学研究費補助金  基盤研究(C),課題番号:19500361

    赤塚 慎也

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Teaching Experience (On-campus) 3

  1. 基礎医学セミナー

    2025

  2. 基礎セミナー

    2024

  3. 基礎医学セミナー

    2024