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Title: miR-141-3p inhibits fibroblast proliferation and migration by targeting GAB1 in keloids

Abstract

Keloids are benign dermal fibroproliferative tumors that develop as a result of several dysregulated processes. Emerging evidence has revealed that miRNAs contribute to keloid formation. However, the molecular mechanisms of keloid pathogenesis remain unclear. In our study, we found that miR-141-3p in keloid tissues and keloid fibroblasts was significantly decreased compared with the levels in normal tissues and normal skin fibroblasts, respectively. miR-141-3p overexpression resulted in significantly decreased proliferation and migration and the promotion of apoptosis in keloid fibroblasts, whereas miR-141-3p knockdown in keloid fibroblasts yielded the opposite results. Growth factor receptor binding 2-associated binding protein 1 (GAB1) was identified and confirmed as a direct target of miR-141-3p. The expression of GAB1 was up-regulated in keloid tissues, and the restoration of GAB1 partially reversed the inhibitory effects of miR-141-3p on the proliferation and migration of keloid fibroblasts. All data suggested that miR-141-3p decreased the proliferation and migration of keloid fibroblasts by repressing GAB1 expression, providing a useful target for keloid management. - Highlights: • miR-141-3p is down-regulated in human keloids and suppresses keloid fibroblast proliferation. • miR-141-3p induces keloid fibroblast apoptosis and inhibits cell migration. • GAB1 is a direct target of miR-141-3p. • miR-141-3p inhibits keloid fibroblast proliferation andmore » migration by negatively regulating GAB1 expression.« less

Authors:
 [1];  [2]; ;  [3];  [3]
  1. Department of Anorectal Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072 (China)
  2. Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041 (China)
  3. Institute of Dermatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072 (China)
Publication Date:
OSTI Identifier:
22719033
Resource Type:
Journal Article
Journal Name:
Biochemical and Biophysical Research Communications
Additional Journal Information:
Journal Volume: 490; Journal Issue: 2; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0006-291X
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; ANIMAL TISSUES; APOPTOSIS; BIOLOGICAL RECOVERY; FIBROBLASTS; GROWTH FACTORS; NEOPLASMS; PATHOGENESIS; RECEPTORS; SKIN

Citation Formats

Feng, Jingjuan, Xue, Siliang, Pang, Qiuyu, Rang, Zhen, and Cui, Fan. miR-141-3p inhibits fibroblast proliferation and migration by targeting GAB1 in keloids. United States: N. p., 2017. Web. doi:10.1016/J.BBRC.2017.06.040.
Feng, Jingjuan, Xue, Siliang, Pang, Qiuyu, Rang, Zhen, & Cui, Fan. miR-141-3p inhibits fibroblast proliferation and migration by targeting GAB1 in keloids. United States. doi:10.1016/J.BBRC.2017.06.040.
Feng, Jingjuan, Xue, Siliang, Pang, Qiuyu, Rang, Zhen, and Cui, Fan. Sat . "miR-141-3p inhibits fibroblast proliferation and migration by targeting GAB1 in keloids". United States. doi:10.1016/J.BBRC.2017.06.040.
@article{osti_22719033,
title = {miR-141-3p inhibits fibroblast proliferation and migration by targeting GAB1 in keloids},
author = {Feng, Jingjuan and Xue, Siliang and Pang, Qiuyu and Rang, Zhen and Cui, Fan},
abstractNote = {Keloids are benign dermal fibroproliferative tumors that develop as a result of several dysregulated processes. Emerging evidence has revealed that miRNAs contribute to keloid formation. However, the molecular mechanisms of keloid pathogenesis remain unclear. In our study, we found that miR-141-3p in keloid tissues and keloid fibroblasts was significantly decreased compared with the levels in normal tissues and normal skin fibroblasts, respectively. miR-141-3p overexpression resulted in significantly decreased proliferation and migration and the promotion of apoptosis in keloid fibroblasts, whereas miR-141-3p knockdown in keloid fibroblasts yielded the opposite results. Growth factor receptor binding 2-associated binding protein 1 (GAB1) was identified and confirmed as a direct target of miR-141-3p. The expression of GAB1 was up-regulated in keloid tissues, and the restoration of GAB1 partially reversed the inhibitory effects of miR-141-3p on the proliferation and migration of keloid fibroblasts. All data suggested that miR-141-3p decreased the proliferation and migration of keloid fibroblasts by repressing GAB1 expression, providing a useful target for keloid management. - Highlights: • miR-141-3p is down-regulated in human keloids and suppresses keloid fibroblast proliferation. • miR-141-3p induces keloid fibroblast apoptosis and inhibits cell migration. • GAB1 is a direct target of miR-141-3p. • miR-141-3p inhibits keloid fibroblast proliferation and migration by negatively regulating GAB1 expression.},
doi = {10.1016/J.BBRC.2017.06.040},
journal = {Biochemical and Biophysical Research Communications},
issn = {0006-291X},
number = 2,
volume = 490,
place = {United States},
year = {2017},
month = {8}
}