固形癌組織のclonal evolution, heterogeneityの解析
Project/Area Number |
25430111
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Tumor biology
|
Research Institution | Kyushu University |
Principal Investigator |
主藤 朝也 九州大学, 大学病院, 助教 (50309803)
|
Co-Investigator(Kenkyū-buntansha) |
谷内田 真一 独立行政法人国立がん研究センター, 研究所, ユニット長 (20359920)
|
Project Period (FY) |
2013-04-01 – 2014-03-31
|
Project Status |
Discontinued (Fiscal Year 2013)
|
Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
|
Keywords | がんゲノム解析 |
Research Abstract |
これまでの多くの研究で、正常大腸組織から大腸癌がどのような遺伝子変異等を受けて発生、成長するかはAdenoma-carcinoma sequenceをはじめとして様々な提言がなされ検証されてきた。また近年、TCGA等による大規模症例へのシークエンス研究により大腸癌の症例間における不均一性が明らかにされた。しかし一つの大腸癌の中での詳細な変異の広がりを見た研究はなく、実際に癌がどのような遺伝子変異を起こしながら進化し広がっていくかの詳細については謎が多い。本研究では3症例の大腸癌に対して、それぞれ原発巣10か所、原発巣10か所と転移巣3か所(1つの転移巣より)、原発巣20か所と転移巣1か所に分割し、エキソームシークエンスを行った。また転移巣の存在する2症例についてはSNP arrayを用いたcopy数解析、methylation arrayを用いたメチル化解析、expression arrayを用いた発現解析も行い、各データの統合解析も行った。この統合解析によって1症例内の癌の不均一性の詳細が明らかにした。各々のsampleの多数に病変について全エキソームシークエンスを行い、突然変異の同定をおこなった。多数の病変についての共起性を見ることで、全病変に共通する遺伝子を同定することができる。この遺伝子変異は癌発生初期から腫瘍全体に広がる前の親クローンになるまでの間に起こっており、腫瘍発生初期に重要な役割を担っている可能性が比較的高いと考えられるfounder変異はそれぞれ41個、48個、48個認め、全変異におけるfounder変異の割合はそれぞれ20.4%、28.6%、6.0%であった。1例はshared変異190個(19.7%)、unique変異718個(74.3%)という非常に多くのprogressor変異を持っており、20か所の原発巣それぞれで独自の深い進化を遂げていることがわかる。また他の2例についてもprogressor変異が7~8割を占めており、同じ腫瘍内でも多様な不均一性が存在することが明らかになった。
|
Report
(1 results)
Research Products
(19 results)
-
[Journal Article] Amplification of PVT-1 is involved in poor prognosis via apoptosis inhibition in colorectal cancers.2014
Author(s)
Takahashi Y, Sawada G, Kurashige J, Uchi R, Matsumura T, Ueo H, Takano Y, Eguchi H, Sudo T, Sugimachi K, Yamamoto H, Doki Y, Mori M, Mimori K.
-
Journal Title
Br J Cancer.
Volume: 110
Issue: 1
Pages: 164-164
DOI
Related Report
Peer Reviewed
-
[Journal Article] Up-regulation of NEK2 by microRNA-128 methylation is associated with poor prognosis in colorectal cancer.2014
Author(s)
Takahashi Y, Iwaya T, Sawada G, Kurashige J, Matsumura T, Uchi R, Ueo H, Takano Y, Eguchi H, Sudo T, Sugimachi K, Yamamoto H, Doki Y, Mori M, Mimori K.
-
Journal Title
Ann Surg Oncol.
Volume: 21 (1)
Issue: 1
Pages: 205-12
DOI
Related Report
Peer Reviewed
-
[Journal Article] Gene expression of bone morphogenic protein 8B in the primary site, peripheral blood and bone marrow of patients with gastric cancer.2013
Author(s)
Mima K, Fukagawa T, Kurashige J, Takano Y, Uchi R, Ueo H, Matsumura T, Ishibashi M, Sawada G, Takahashi Y, Akiyoshi S, Eguchi H, Sudo T, Sugimachi K, Watanabe M, Ishii H, Mori M, Baba H, Sasako M, Mimori K.
-
Journal Title
Oncol Lett.
Volume: 6
Pages: 387-392
Related Report
Peer Reviewed
-
[Journal Article] Contrasting expression patterns of histone mRNA and microRNA 760 in patients with gastric cancer.2013
Author(s)
Iwaya T, Fukagawa T, Suzuki Y, Takahashi Y, Sawada G, Ishibashi M, Kurashige J, Sudo T, Tanaka F, Shibata K, Endo F, Katagiri H, Ishida K, Kume K, Nishizuka S, Iinuma H, Wakabayashi G, Mori M, Sasako M, Mimori K.
-
Journal Title
Clin Cancer Res
Volume: 19 (23)
Issue: 23
Pages: 6438-49
DOI
Related Report
Peer Reviewed
-
[Journal Article] Loss of COP1 expression determines poor prognosisin patients with gastric cancer.2013
Author(s)
Sawada G, Ueo H, Matsumura T, Uchi R, Ishibashi M, Mima K, Kurashige J, Takahashi Y, Akiyoshi S, Sudo T, Sugimachi K, Doki Y, Mori M, Mimori K.
-
Journal Title
Oncol Rep.
Volume: 30
Issue: 4
Pages: 1971-5
DOI
Related Report
Peer Reviewed
-
[Journal Article] Microarray analysis reveals that high mobility group A1 is involved in colorectal cancer metastasis.2013
Author(s)
Takahashi Y, Sawada G, Sato T, Kurashige J, Mima K, Matsumura T, Uchi R, Ueo H, Ishibashi M, Takano Y, Akiyoshi S, Eguchi H, Sudo T, Sugimachi K, Tanaka J, Kudo SE, Doki Y, Mori M, Mimori K.
-
Journal Title
Oncol Rep.
Volume: 30
Issue: 3
Pages: 1488-96
DOI
Related Report
Peer Reviewed
-
[Journal Article] CHD8 is an independent prognostic indicator that regulates Wnt/β-catenin signaling and the cell cycle in gastric cancer.2013
Author(s)
Sawada G, Ueo H, Matsumura T, Uchi R, Ishibashi M, Mima K, Kurashige J, Takahashi Y, Akiyoshi S, Sudo T, Sugimachi K, Doki Y, Mori M, Mimori K.
-
Journal Title
Oncol Rep.
Volume: 30
Issue: 3
Pages: 1137-42
DOI
Related Report
Peer Reviewed
-
[Journal Article] Paired related homoeobox 1, a new EMT inducer, is involved in metastasis and poor prognosis in colorectal cancer.2013
Author(s)
Takahashi Y, Sawada G, Kurashige J, Uchi R, Matsumura T, Ueo H, Takano Y, Akiyoshi S, Eguchi H, Sudo T, Sugimachi K, Doki Y, Mori M, Mimori K.
-
Journal Title
Br J Cancer
Volume: 109(2)
Issue: 2
Pages: 307-311
DOI
Related Report
Peer Reviewed
-
[Journal Article] Tumor-derived tenascin-C promotes the epithelial-mesenchymal transition in colorectal cancer cells.2013
Author(s)
Takahashi Y, Sawada G, Kurashige J, Matsumura T, Uchi R, Ueo H, Ishibashi M, Takano Y, Akiyoshi S, Iwaya T, Eguchi H, Sudo T, Sugimachi K, Yamamoto H, Doki Y, Mori M, Mimori K.
-
Journal Title
Anticancer Res.
Volume: 33
Pages: 1927-34
Related Report
Peer Reviewed
-
[Journal Article] Clinical significance of PICT1 in patients of hepatocellular carcinoma with wild-type TP53.2013
Author(s)
Ishibashi M, Kogo R, Shibata K, Ueo H, Uchi R, Matsumura T, Takano Y, Sawada G, Takahashi Y, Mima K, Kurashige J, Akiyoshi S, Iwaya T, Eguchi H, Sudo T, Sugimachi K, Suzuki A, Wakabayashi G, Mori M, Mimori K.
-
Journal Title
Ann Surg Oncol.
Volume: Supple 3:
Issue: S3
Pages: 537-544
DOI
Related Report
Peer Reviewed
-
[Journal Article] Plastin3 is a novel marker for circulating tumor cells undergoing the epithelial-mesenchymal transition and is associated with colorectal cancer prognosis.2013
Author(s)
Yokobori T, Iinuma H, Shimamura T, Imoto S, Sugimachi K, Ishii H, Iwatsuki M, Ota D, Ohkuma M, Iwaya T, Nishida N, Kogo R, Sudo T, Tanaka F, Shibata K, Toh H, Sato T, Barnard GF, Fukagawa T, Yamamoto S, Nakanishi H, Sasaki S, Miyano S, Watanabe T, Kuwano H, Mimori K, Pantel K, Mori M.
-
Journal Title
Cancer Res
Volume: 1; 73(7)
Issue: 7
Pages: 2059-69
DOI
Related Report
Peer Reviewed
-
[Journal Article] Clinical significance of the expression of long non-coding RNA HOTAIR in primary hepatocellular carcinoma.2013
Author(s)
Ishibashi M, Kogo R, Shibata K, Sawada G, Takahashi Y, Kurashige J, Akiyoshi S, Sasaki S, Iwaya T, Sudo T, Sugimachi K, Mimori K, Wakabayashi G, Mori M.
-
Journal Title
Oncol Rep
Volume: 29(3)
Issue: 3
Pages: 946-50
DOI
Related Report
Peer Reviewed
-
-
[Journal Article] Expression of Mesenchymal Markers Vimentin and Fibronectin: The Clinical Significance in Esophageal Squamous Cell Carcinoma.2012
Author(s)
Sudo T, Iwaya T, Nishida N, Sawada G, Takahashi Y, Ishibashi M, Shibata K, Fujita H, Shirouzu K, Mori M, Mimori K.
-
Journal Title
Ann Surg Oncol
Volume: Epub
Issue: S3
Pages: 324-335
DOI
Related Report
Peer Reviewed
-
-
-
-
-