Fluorescent quantitative analysis on the expression of miRNA-34s in human skin keloid tissue
10.3969/j.issn.2095-4344.2014.11.009
- VernacularTitle:荧光定量分析人皮肤瘢痕疙瘩组织中miRNA-34s的表达
- Author:
Yudan JIN
;
Xiaorui GUO
;
Haihua HUANG
;
Ling LU
;
Xiaojian CAI
;
Suijiang WANG
- Publication Type:Journal Article
- Keywords:
microRNAs;
keloid;
reverse transcriptase polymerase chain reaction
- From:
Chinese Journal of Tissue Engineering Research
2014;(11):1694-1699
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:Understanding the difference of miRNA-34s expression in normal tissue and tumor tissue wil contribute to screen out a miRNA with high sensitivity as the specific tumor molecular marker.
OBJECTIVE:To investigate the differential expression of miRNA-34s (miR-34a/b/c) between normal skin and keloid tissue using real-time fluorescent quantitative PCR, and to evaluate the role and mechanisms of miRNA-34s in keloid formation and development.
METHODS:Ten cases of keloid tissue and two cases of normal skin tissue were col ected as specimens. Total RNAs were extracted from keloid and nomal skin tissue by Trizol method, and miRNA-34s were further isolated by Ambion’s miRNA Isolation Kit. Real-time fluorescent quantitative PCR was applied to verify expression levels of microRNA-34s (miR-34a/b/c) in keloid tissue and normal skin tissue.
RESULTS AND CONCLUSION:miRNA-34s (miRNA-34a/b/c) expression was down-regulated in keloid tissue compared with normal skin tissue (P<0.01). The findings showed that miRNA-34s (miRNA-34a/b/c) are involved in keloid formation and development, and down-regulation of the family member may result in neoplastic growth of keloid.
