Are SK-N-SH cells after space radiation exposure (space cells) radioresistance or not?
Project/Area Number |
23592774
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Pathobiological dentistry/Dental radiology
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Research Institution | Kagoshima University |
Principal Investigator |
INDO HIROKO 鹿児島大学, 医歯(薬)学総合研究科, 助教 (00301391)
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Co-Investigator(Kenkyū-buntansha) |
MAJIMA Hideyuki J. 鹿児島大学, 医歯学総合研究科, 教授 (60165701)
富田 和男 鹿児島大学, 医歯学総合研究科, 助教 (60347094)
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Co-Investigator(Renkei-kenkyūsha) |
TOMITA Kazuo 鹿児島大学, 医歯学総合研究科, 助教 (60347094)
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Project Period (FY) |
2011-04-28 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | radioresistance / cell death / autophagy / MnSOD / オートファジー |
Outline of Final Research Achievements |
Radiation exposure dose in space accounts for 0.2 ~ 10 mSv per day. We previously suggested that low dose radiation as well as microgravity may cause in intracellular oxidative stress and result in different types of cell death. We send the SK-N-SH cells to International Space Station, at Japan Experimental Module, in 2010, and cells were cultured in JEM. Cells were frozen and came back to ground. After that, cells were thawed up and have been re-cultured (space cells). We examined whether space cells are radioresistance or not? Space cells were generated more intracellular ROS and MnSOD activity. Space cells after 10Gy X-arradiation induced survivin expression and reduced Beclin1,resulting in inhibit autophagy. On the other hands, MnSOD overexpessed space cells after 10Gy x-irradiation induced Bcl-2 expression compared with control cells. The results suggest that SK-N-SH cells after space radiation exposure (space cells) are radioresistance on X-ray induce cell death.
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Report
(5 results)
Research Products
(26 results)
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[Journal Article] A mitochondrial superoxide theory for oxidative stress diseases and aging2015
Author(s)
Indo HP, Yen H-C, Nakanishi I, Matsumoto K, Tamura M, Nagano Y, Matsui H, Gusev RO, Cornette R, Okuda T, Minamiyama Y, Ichikawa H, Suenaga S, Oki M, Sato T, Ozawa T, St, Clair DK, Majima HJ
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Journal Title
Journal of Clinical Biochemistry and Nutrition
Volume: 56
Issue: 1
Pages: 1-7
DOI
NAID
ISSN
0912-0009, 1880-5086
Related Report
Peer Reviewed / Open Access
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[Journal Article] MnSOD downregulation induced by extremely low 0.1 mGy single and fractionated X-rays and microgravity treatment in human neuroblastoma cell line, NB-12015
Author(s)
Indo HP, Tomiyoshi T, Suenaga, S, Tomita K, Suzuki H, Masuda D, Terada M, Ishioka N, Gusev O, Cornette R, Okuda T, Mukai C and Majima HJ.
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Journal Title
J Clin Biochem Nurt.
Volume: 印刷中
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Blue LED light exposure develops intracellular reactive oxygen species, lipid peroxidation, and subsequent cellular injuries in cultured bovine retinal pigment epithelial cells.2013
Author(s)
Nakanishi-Ueda T, Majima HJ, Watanabe K, Ueda T, Indo HP, Suenaga S, Hisamitsu T, Ozawa T, Yasuhara H, Koide R.
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Journal Title
Free Radic Res
Volume: 47
Issue: 10
Pages: 774-780
DOI
Related Report
Peer Reviewed
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[Journal Article] Roles of mitochondria-generated reactive oxygen species on X-ray-induced apoptosis in a human hepatocellular carcinoma cell line, HLE.2012
Author(s)
Indo HP, Inanami O, Koumura T, Suenaga S, Yen H-C, Kakinuma S, Matsumoto K, Nakanishi I, St Clair W, St Clair DK, Matsui H, Cornette R, Gusev O, Okuda T, Nakagawa Y, Ozawa T & Majima HJ
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Journal Title
Free Radical Research
Volume: Vol. 46, No. 8
Issue: 8
Pages: 1029-1043
DOI
Related Report
Peer Reviewed
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[Journal Article] Lansoprazole inhibits mitochondrial superoxide production and cellular lipid peroxidation induced by indomethacin in RGM1 cells2011
Author(s)
Rai K, Matsui H, Kaneko T, Nagano Y, Shimokawa O, Udo J, Hirayama A, Hyodo I, Indo HP, Majima HJ
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Journal Title
Journal of Clinical Biochemistry and Nutrition
Volume: 49
Issue: 1
Pages: 25-30
DOI
NAID
ISSN
0912-0009, 1880-5086
Related Report
Peer Reviewed
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[Presentation] Induction of mitochondrial ROS and cell death by cytokines and its prevention by estrogen in rheumatoid arthritis fibroblasts2011
Author(s)
Shigeaki Suenaga, Hiroko P. Indo, Hsiu-Chuan Yen, Kosei Ijiri, Setsuro Komiya, Takami Matsuyama, Masahiro Higuchi, Hirofumi Matsui, Toshihiko Ozawa, Hideyuki J. Majima
Organizer
5th SFRR-Asia,8th ASMRM,11th J-mit
Place of Presentation
Kagoshima Citizens' Culture Hall ,Kagoshima
Related Report
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[Presentation] Effects of 14 and 28 days exposure of human neuro cells in Space; Neuro Rad Experiments2011
Author(s)
Hiroko P. Indo, Noriaki Ishioka, Hiromi Suzuki, Toru Shimazu, Sachiko Yano, Fumiaki Tanigaki, Aiko Nagamatsu,Daisuke Masuda, Etsuko Minobe, Masaki Kameyama and Hideyuki J. Majima1)
Organizer
SFRBM's 18th Annual Meeting
Place of Presentation
Sheraton Atlanta Hotel, Atlanta GA
Related Report
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[Presentation] ρ0 cells are susceptible to X-irradiation.
Author(s)
Hiroko P Indo, Chizuru Tsuruoka, Shizuko Kakinuma, Masao Suzuki, Ken-ichiro Matsumoto, Ikuo Nakanishi, Hsiu-Chuan Yen, Hirofumi Matsui, Toshihiko Ozawa, Hideyuki J Majima
Organizer
The 32nd Annual Meeting of Japanese Society for Cytoprotection & Cytobiology.
Place of Presentation
kyoto, Japan
Related Report