Stratification of gastric cancer and identification of molecular mechanism of gastric tumorigenesis based on aberrant DNA methylation profile
Project/Area Number |
16H05412
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Digestive surgery
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Research Institution | Chiba University |
Principal Investigator |
Kaneda Atsushi 千葉大学, 大学院医学研究院, 教授 (10313024)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2016: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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Keywords | がん / エピゲノム / 癌 |
Outline of Final Research Achievements |
We conducted genome-wide DNA methylation analysis of clinical gastric cancer samples to classify gastric cancer into several molecular subtypes, and we also conducted exon-sequencing analysis to identify genetic mutations specifically observed in each subtype. As for high-methylation gastric cancer subtypes, we clarified molecular mechanisms of gastric cancer through synergy of genetic mutations and aberrant DNA methylation. Moreover, we analyzed the mechanisms to induce aberrant epigenomic aberrations in gastric epithelial cells. We infected Epstein-Barr virus to gastric epithelial cells in vitro, and showed that EBV infection induced extensive DNA hypermethylation within four weeks genomewidely, and repression of TET2 was one of the molecular mechanisms for DNA methylation induction.
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Academic Significance and Societal Importance of the Research Achievements |
癌は我が国において生涯のうちに1/2の者が罹患し1/3の者の死因となる疾患であり、網羅的解析により癌の原因を明らかにすることは学術的にも、また新たな治療方法を構築して社会的に貢献する意味でも大変重要である。その中でも胃癌は重要な癌死要因の1つであり、胃癌における分子異常を詳細に同定し、その中から胃発癌に重要な分子異常を同定したこと、またどのようにその分子異常が蓄積したのかその原因の一端を明らかにしたことは、発癌機構を理解する上で学術的にも、また今後新たな胃癌治療法を確立する上でも、意義のある成果をあげた。
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Report
(4 results)
Research Products
(93 results)
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[Journal Article] Impact of combinatorial dysfunctions of Tet2 and Ezh2 on the epigenome in the pathogenesis of myelodysplastic syndrome.2016
Author(s)
Hasegawa N, Oshima M, Sashida G, Matsui H, Koide S, Saraya A, Wang C, Muto T, Takane K, Kaneda A, Shimoda K, Nakaseko C, Yokote K, Iwama A.
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Journal Title
Leukemia
Volume: in press
Issue: 4
Pages: 861-871
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Coupling CDH17 and CLDN18 markers for comprehensive membrane-targeted detection of human gastric cancer.2016
Author(s)
K. Matsusaka, T. Ushiku, M. Urabe, M. Fukuyo, H. Abe, S. Ishikawa, Y. Seto, H. Aburatani, T. Hamakubo, A. Kaneda, M. Fukayama
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Journal Title
Oncotarget
Volume: 7
Issue: 39
Pages: 64168-64181
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Coupling CDH17 and CLDN18 markers for comprehensive membrane-targeted detection of human gastric cancer.2016
Author(s)
Matsusaka K, Ushiku T, Urabe M, Fukuyo M, Abe H, Ishikawa S, Seto Y, Aburatani H, Hamakubo T, Kaneda A, Fukayama M.
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Journal Title
Oncotarget
Volume: 7
Issue: 51
Pages: 64168-64181
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Tumor Content Chart-Assisted HER2/CEP17 Digital PCR Analysis of Gastric Cancer Biopsy Specimens.2016
Author(s)
Matsusaka K, Ishikawa S, Nakayama A, Ushiku T, Nishimoto A, Urabe M, Kaneko N, Kunita A, Kaneda A, Aburatani H, Fujishiro M, Seto Y, Fukayama M.
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Journal Title
PLoS One
Volume: 11
Issue: 4
Pages: e0154430-e0154430
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Genetic and epigenetic aberrations occurring in colorectal tumors associated with serrated pathway.2016
Author(s)
Sakai E, Fukuyo M, Ohata K, Matsusaka K, Doi N, Mano Y, Takane K, Abe H, Yagi K, Matsuhashi N, Fukushima J, Fukayama M, Akagi K, Aburatani H, Nakajima A, Kaneda A.
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Journal Title
Int J Cancer
Volume: 138
Issue: 7
Pages: 1634-44
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Frequent promoter hypermethylation correlates with better prognosis in pharyngeal cancer.2018
Author(s)
Nakagawa T, Matsusaka K, Misawa K, Takane K, Fukuyo M, Rahmutulla B, Shinohara K, Ota S, Kunii N, Sakurai D, Hanazawa T, Nakatani Y, Okamoto Y, Kaneda A.
Organizer
AACR Annual meeting
Related Report
Int'l Joint Research
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[Presentation] lassification of HPV-associated oropharyngeal cancer by definition of DNA methylation epigenotypes.2018
Author(s)
Takuya Nakagawa, Keisuke Matsusaka, Kiyoshi Misawa, Masaki Fukuyo, Bahityar Rahmutulla, Satoshi Ota, Naoki Kunii, Daiju Sakurai, Toyoyuki Hanawzawa, Yoshitaka Okamoto, Atsushi Kaneda.
Organizer
The 77th Annual Meeting of the Japanese Cancer Association
Related Report
Int'l Joint Research
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[Presentation] Identification of genetic/epigenetic alterations based on wild-type TP53 in high methylation gastric cancer.2018
Author(s)
Keisuke Matsusaka, Yasunobu Mano, Masaki Fukuyo, Masayuki Urabe, Rahmutulla Bahityar, Eriko Ikeda, Kazuko Kita, Hiroyuki Abe, Tetsuhiro Nemoto, Yasuyuki Seto, Masashi Fukayama, Atsushi Kaneda.
Organizer
The 77th Annual Meeting of the Japanese Cancer Association
Related Report
Int'l Joint Research
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[Presentation] 抗がん活性を有する新規化学合成化合物の詳細解析2018
Author(s)
池田英里子, 喜多和子, 井上貴登, 松田和暁, 宮崎柊子, 竹野有加里, 新宅 敬彦, 依田夏美, 福世真樹, 篠原憲一, 松坂恵介, 根本哲宏, 金田篤志
Organizer
第41回分子生物学会年会
Related Report
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