Detection of decorin expression in keloid with fluorescent quantitative-PCR
10.3760/cma.j.issn.1671-0290.2013.04.014
- VernacularTitle:实时荧光定量聚合酶链式反应检测瘢痕疙瘩中核心蛋白多糖的表达
- Author:
Liu LIU
;
Xian ZHAO
;
Jia HE
;
Ruihong YUAN
;
Deping ZHAO
;
Xuesong HAN
- Publication Type:Journal Article
- Keywords:
Keloid;
Decorin;
β1-transforming growth factor (TGF-β1);
Fibroblast;
fluorescent quantitative-PCR (FQ-PCR)
- From:
Chinese Journal of Medical Aesthetics and Cosmetology
2013;19(4):287-290
- CountryChina
- Language:Chinese
-
Abstract:
Objective To detect the expression and content of decorin in fibroblasts of keloid to deeply reveal the mechenism and the role of decorin plays in scar formation.Methods Fibroblasts of keloid,normal scar and normal skin were cultured in vitro,and the morphology,activity,apoptosis of fibroblast were observed under light microscope and electron microscope; the mRNAs of decorin and TGF-β1 were detected and analyzed with real-time fluorescent quantitative-PCR (FQ-PCR).Results Fibroblasts of keloid showed irregular morphology,larger size and disorder arrangement.There were a large number of mitochondria,swelling rough endoplasmic reticulum,and euchromatin-rich in nucleus of fibroblasts,suggesting the protein synthesis of keloid fibroblast was very active.Compared with normal skin,the expression of decorin was significantly lower in keloid fibroblast; On the contrary,the expression of TGF-β1 was significantly higher in keloid fibroblast than in normal scar and normal skin.Conclusions Compared with normal skin,the expression of decorin in keloid fibroblast is significantly lower.Lower content of decorin in early stage of wound healing may induce weakly suppression of proliferation and synthesis of fibroblast,and up-regulate the activity of TGF-β1,which promotes the proliferation,migration and excessive collagen synthesis of the fibroblast of keloid.Thus,decorinis an suppressor factor of keloid formation.
