Transforming growth factor-β1 induces the expressions of twist protein in kidney tubular epithelial cells through Akt pathways
10.3760/cma.j.issn.1008-1372.2013.04.003
- VernacularTitle:转化生长因子β1通过AKT通路诱导肾小管上皮细胞Twist蛋白的表达
- Author:
Yong ZHANG
;
Liping WANG
;
Jian CHEN
- Publication Type:Journal Article
- Keywords:
Transforming growth factor betal;
Protein-serine-threonine kinases;
Kidney tubules/cytology;
Epithelial cells/metabolism;
Twist transcription factor/metabolism
- From:
Journal of Chinese Physician
2013;(4):441-444
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate whether transforming growth factor-β1 (TGF-β1) could induce the expression of twist protein in the human kidney tubular epithelial cells (HKCs).Methods Human proximal HKCs were cultured in vitro and divided into three groups as follows:control group,TGF-β1group (10 ng/ml),and TGF-β1 + wortmannin group (10 ng/ml,10nmol/l,respectively).After cultured for 48 hours,cell immunofluorescene was used to observe the expression of E-cadherin and alpha-smooth muscle actin (α-SMA).Meanwhile,Western blotting was used to detect the protein expression of E-cadherin,α-SMA,and twist.Results Compared to control group,the protein expressions of E-cadherin were significantly decreased in T group (3.54 ± 0.17 vs 16.06 ± 0.50,P =0.001),whereas the protein expressions of α-SMA and twist were significantly increased in T group (α-SMA:14.78 ± 0.48 vs 3.75 ± 0.50,P=0.001 ;twist:14.24 ±0.14 vs 3.06 ±0.15,P =0.001).Compared to T group,a significant increase of the E-cadherin protein expression was detected in TGF-β1 + wortmannin group (15.88 ± 0.36,3.46 ±0.19,P =0.001),whereas,the protein expressions of α-SMA and twist were significantly decreased in TGF-β1 + wortmannin group (α-SMA:3.50 ±0.39 vs 15.0 ±0.24,P =0.001 ;twist:3.09 ±0.1 vs 14.04± 0.16,P =0.001).Cell imunofluorescence showed that the expressions of E-cadherin and α-SMA were consistent with the results of Western blotting.Conclusions TGF-β1 can induce the expression of twist protein in HKCs through Akt pathways.
