2013 Fiscal Year Final Research Report
Involvement of miRMAs in the interaction between cancer stem cells and tumor micro-environment
Project/Area Number |
23591920
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Digestive surgery
|
Research Institution | University of Toyama |
Principal Investigator |
OKUMURA Tomoyuki 富山大学, 大学院医学薬学研究部(医学), 助教 (10533523)
|
Co-Investigator(Kenkyū-buntansha) |
TSUKADA Kazuhiro 富山大学, 大学院医学薬学研究部(医学), 教授 (90171967)
SHIMADA Yutaka 京都大学, 薬学研究科(研究院), 寄附講座教員 (30216072)
|
Project Period (FY) |
2011 – 2013
|
Keywords | 食道癌 / miRNA / 癌幹細胞 |
Research Abstract |
Our investigation establishing stable clones from ESCC cell lines with induced miR-203 expression resulted in significant growth inhibition in vitro and in vivo. In p75NTR-negative cells, the expression of p63 was down-regulated and involucrin was up-regulated. Small foci were observed in mouse xenograft tumors with stratified squamous differentiation. The expression of basement membrane protein laminine was localized at the center of the foci and p75NTR-positive cells resided at the basal layer. Our cDNA microarray analysis demonstrated up-regulation of genes involved in regulating tissue polarity, such as BMP-4 and ZO-1. These results demonstrated that miR-203 regulated both self renew of CSLCs and differentiation of non-CSLCs, leading significant tumor growth inhibition with restored epithelial tissue architecture in vivo, which suggests the use of miR-203 as a novel therapeutic target for ESCC.
|
Research Products
(13 results)
-
-
-
-
-
-
[Journal Article] Expression analysis of iPS cell - inductive genes in esophageal squamous cell carcinoma by tissue microarray2012
Author(s)
Shimada Y, Okumura T, Sekine S, Moriyama M, Sawada S, Matsui K, Yoshioka I, Hojo S, Yoshida T, Nagata T, Fukuoka J, Tsukada K.
-
Journal Title
Anticancer Res.
Volume: 32(12)
Pages: 5507-14
Peer Reviewed
-
-
-
[Presentation] 食道扁平上皮癌においてmiR-203の発現により増殖が抑制され分化が誘導される2013
Author(s)
T. Okumura, Y. Shimada, M. Moriyama, Y. Takei, T. Yamaguchi, T. Omura, S. Sekine, S. Sawada, T. Nagata, K. Shimizu, K. Tsukada
Organizer
第72回日本癌学会学術総会
Place of Presentation
横浜
Year and Date
2013-10-05
-
-
-
[Presentation] Identification of microRNAs which regulate stem cell property in esophageal squamous cell carcinoma2012
Author(s)
T. Okumura, Y. Shimada, S. Sekine, M. Moriyama, T. Omura, K. Kamiyama, R. Hori, T. Watanabe, S. Hojo, K. Matsui, I. Yoshioka, S. Sawada, T. Yoshida, T. Nagata, K. Tsukada
Organizer
The 13th World Congress of the International Society for Diseases of the Esophagus
Place of Presentation
Venice, Italy
Year and Date
2012-10-17
-