MicroRNA-143 regulates collagen type III expression in stromal fibroblasts of scirrhous type gastric cancer.

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MicroRNA-143 regulates collagen type III expression in stromal fibroblasts of scirrhous type gastric cancer.

Material type: 博士論文

Author: Naito, Yutaka

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Name of awarding university/degree: 広島大学(Hiroshima University),博士(医学)

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Note (General)：: type:textGastric cancer (GC) is one of the most common malignancies worldwide. In particular, scirrhous type GC is highly metastatic and is characteri...

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Material Type: 博士論文
Title: MicroRNA-143 regulates collagen type III expression in stromal fibroblasts of scirrhous type gastric cancer.
Author/Editor: Naito, Yutaka
Author Heading: Naito, Yutaka
Alternative Title: スキルス胃癌の間質の線維芽細胞においてMicroRNA-143はcollagen type IIIの発現を制御する
Degree grantor/type: 広島大学(Hiroshima University)
Date Granted: 2014-03-23
Dissertation Number: 甲第6383号
Degree Type: 博士(医学)
Text Language Code: eng
Subject Heading: Collagen type III
fibroblast
gastric cancer
microRNA-143
transforming growth factor-β
NDC: 490
Target Audience: 一般
Note (General): type:text
Gastric cancer (GC) is one of the most common malignancies worldwide. In particular, scirrhous type GC is highly metastatic and is characterized clinically by rapid disease progression and poor prognosis. MicroRNAs (miRNAs) play crucial roles in cancer development and progression. In the present study, we identified several miRNAs that are expressed at higher levels in scirrhous type GC than in non-scirrhous type GC by miRNA microarray analysis. Among these, microRNA-143 (miR- 143) expression was higher in scirrhous type GC than in non-scirrhous types of GC. In situ hybridization and quantitative RT-PCR analysis showed that miR-143 is expressed by stromal fibroblasts but not by cancer cells. In stromal cells, miR-143 enhanced collagen type III expression in normal gastric fibroblasts and cancerassociated fibroblasts through activation of transforming growth factor-β) /SMAD signaling. Furthermore, high miR-143 expression in GC was associated with worse cancer-specific mortality (P = 0.0141). Multivariate analysis revealed that miR-143 was an independent prognostic factor. Treatment of GC cell lines with 5-aza-2'- deoxycytidine restored the expression of miR-143, and precursor miR-143 caused the inhibition of cancer cell invasion. These data suggest that miR-143 regulates fibrosis of scirrhous type GC through induction of collagen expression in stromal fibroblasts and that miR-143 expression serves as a prognostic marker of GC.
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http://ir.lib.hiroshima-u.ac.jp/files/public/3/36302/2014112101492924601/k6383_3.pdf
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http://ir.lib.hiroshima-u.ac.jp/files/public/3/36302/20181122113605806870/k6383_1.pdf
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http://ir.lib.hiroshima-u.ac.jp/files/public/3/36302/20181122113606312023/k6383_2.pdf
Access Restrictions: インターネット公開
Rights (production): Copyright(c) by Author
References (URI): URI
http://dx.doi.org/10.1111/cas.12329
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 広島大学 : 広島大学学術情報リポジトリ