Analyses of gene function for telomere dependent cellular senescence
Project/Area Number |
24590468
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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 |
Experimental pathology
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Research Institution | Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology |
Principal Investigator |
Ishikawa Naoshi 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (30184485)
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Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Ken-ichi 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (60159069)
TAKUBO Kaiyo 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究部長 研究員 (00154956)
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Project Period (FY) |
2012-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | テロメア / リプログラミング / ウェルナー症候群 / 加齢 / 線維芽細胞 / 細胞老化 / iPS細胞 / ダウン症 / 細胞系列特異性 / WRN遺伝子 / 染色体不安定化 |
Outline of Final Research Achievements |
We have analyzed the in vivo telomere dynamics in Werner syndrome, trisomy 21, and diabetes. Furthermore, our studies of telomere dynamics in patients after living-donor liver transplantation, and in patients with alcoholism and actinic keratosis, have revealed possible factors impacting on telomere maintenance. We also observed end-to-end chromosome fusion in human fibroblast strains at the senescent stage with very short telomeres, and some tumor cells, suggesting that telomere loss could play a role in genetic instability associated with tumorigenesis. Recently, we analyzed details of the telomere dynamics in iPS cells, indicating that telomere has been lengthen or well maintained during reprograming process. The telomeres of some iPS cell strains became shorter as passages increased without differentiation induction, and those strains showed chromosomal abnormalities. The data suggested that telomere shortening could be a novel marker of iPS cell quality.
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Report
(5 results)
Research Products
(41 results)
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[Journal Article] Changes of telomere status with aging: An update2016
Author(s)
Naoshi Ishikawa, Ken-Ichi Nakamura, Naotaka Izumiyama-Shimomura, Junko Aida, Yoko Matsuda, Tomio Arai and Kaiyo Takubo
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Journal Title
Geriatr Gerontol Int
Volume: 16
Issue: S1
Pages: 30-42
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Gradual telomere shortening and increasing chromosomal instability among PanIN grades and normal ductal epithelia with and without cancer in the pancreas.2015
Author(s)
1.Matsuda Y, Ishiwata T, Izumiyama-Shimomura N, Hamayasu H, Fujiwara M, Tomita K, Hiraishi N, Nakamura K, Ishikawa N, Aida J, Takubo K, Arai T.
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Journal Title
PLoS One
Volume: 10
Issue: 2
Pages: e0117575-e0117575
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Beta Cell Telomere Attrition in Diabetes: Inverse Correlation Between HbA1c and Telomere Length.2014
Author(s)
Tamura Y, Izumiyama-Shimomura N, Kimbara Y, Nakamura K, Ishikawa N, Aida J, Chiba Y, Mori S, Arai T, Aizawa T, Araki A, Takubo K, Ito H.
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Journal Title
J Clinical Endocrinology and Metabolism.
Volume: 99
Issue: 8
Pages: 2771-2777
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Q-FISH measurement of hepatocyte telomere lengths in donor liver and graft after pediatric living-donor liver transplantation: Donor age affects telomere length sustainability.2014
Author(s)
Kawano Y., Ishikawa N., Aida J., Sanada Y., Izumiyama-Shimomura N., Nakamura K., Poon SSS., Matsumoto K., Mizuta K., Uchida E., Tajiri T., Kawarasaki H., Takubo K.
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Journal Title
PLoS ONE
Volume: 9
Issue: 4
Pages: 1-10
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Maternal grafts protect daughter recipients from acute cellular rejection after pediatric living donor liver transplantation for biliary atresia.2014
Author(s)
Sanada Y, Kawano Y, Miki A, Aida J, Nakamura K, Izumiyama NS, Ishikawa N, Arai T, Hirata Y, Yamada N, Okada N, Wakiya T, Ihara Y, Urahashi T, Yasuda Y, Takubo K.
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Journal Title
Transpl Int
Volume: 27
Issue: 4
Pages: 383-90
DOI
Related Report
Peer Reviewed
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[Journal Article] Beta Cell Telomere Attrition in Diabetes: Inverse Correlation Between HbA1c and Telomere Length.2014
Author(s)
Tamura Y, Izumiyama-Shimomura N, Kimbara Y, Nakamura K, Ishikawa N, Aida J, Chiba Y, Mori S, Arai T, Aizawa T, Araki A, Takubo K, Ito H.
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Journal Title
J Clinical Endocrinology and Metabolism.
Volume: in press
Related Report
Peer Reviewed
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[Journal Article] Q-FISH measurement of telomere length in skin with/without sun exposure or actinic keratosis2014
Author(s)
Ikeda H, Aida J, Hatamochi A, Hamasaki Y, Izumiyama-Shimomura N, Nakamura K, Ishikawa N, Poon SS, Fujiwara M, Tomita K, Hiraishi N, Kuroiwa M, Matsuura M, Sanada Y, Kawano Y, Arai T, Takubo K.
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Journal Title
Human Pathology.
Volume: 45
Pages: 473-480
Related Report
Peer Reviewed
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[Journal Article] Telomere lengths at birth in trisomies 18 and 21 measured by Q-FISH2014
Author(s)
Nakamura K, Ishikawa N, Izumiyama N, Aida J, Kuroiwa M, Hiraishi N, Fujiwara M, Nakao A, Kawakami T, Poon SSS, Matsuura M, Sawabe M, Arai T, Takubo T.
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Journal Title
Gene
Volume: 533
Issue: 1
Pages: 199-207
DOI
Related Report
Peer Reviewed
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[Journal Article] Telomere shortening in the esophagus of Japanese alcoholics: relationships with chromoendoscopic findings, ALDH2 and ADH1B genotypes and smoking history.2013
Author(s)
Aida J, Yokoyama A, Shimomura N, Nakamura K, Ishikawa N, Terai M, Poon S, Matsuura M, Fujiwara M, Sawabe M, Arai T, Takubo K
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Journal Title
PloS one
Volume: 8
Issue: 5
Pages: 1-7
DOI
Related Report
Peer Reviewed
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[Journal Article] Short telomeres and chromosome instability prior to histologic malignant progression and cytogenetic aneuploidy in papillary urothelial neoplasms.2013
Author(s)
Izumiyama-Shimomura N, Nakamura K, Aida J, Ishikawa N, Kuroiwa M, Hiraishi N, Fujiwara M, Ishikawa Y, Inoshita N, Yonese J, Matsuura M, Poon SS, Arai T, Takubo K.
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Journal Title
Urol Oncol
Volume: in press
Related Report
Peer Reviewed
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[Presentation] The telomeres of the parental cells were elongated by establishment iPSCs, but the telomere extension rate differed among the clones.2013
Author(s)
Ishikawa, N., Terai, M., Toyoda, M., Nakamura, K., Shimomura-Izumiyama, N., and Takubo, K.
Organizer
CiRA International Symposium 2013 "Raising the Next Generation of Stem Cell Research."
Place of Presentation
Kyoto
Related Report
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