Effect of angiotensin II on phenotypic transformation in vascular adventi-tial fibroblast subpopulations / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12): 2211-2215, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-506647
ABSTRACT
AIM:
To explore the effect of angiotensin II ( Ang II) on phenotypic transformation in adventitial fibroblast subpopulations isolated from rat thoracic aorta .METHODS:
Vascular adventitial fibroblasts were individually expanded by the method of cloning rings .The isolated cells were identified by reverse transcription-polymerase chain reac-tion ( RT-PCR) and immunofluorescence staining .The rat vascular adventitial fibroblasts were cultured in vitro and incuba-ted with or without Ang II.Using the methods of fluorescence quantitative polymerase chain reaction (FQ-PCR), immuno-fluorescence staining and Western blot , the expression of α-smooth muscle actin (α-SMA) was detected .RESULTS:
The spindle cells and round cells were isolated by the method of cloning rings .From passage 3 to passage 8,α-SMA expression was decreased in the spindle cells , and increased significantly in the round cells .Induced by Ang II , the expression of α-SMA was increased in the 2 cell subpopulations, and that in the round cells was significantly increased (P<0.01).The results of Western blot indicated that Ang II stimulated the subpopulation of the round cells to transfer to myofibroblasts .CONCLUSION:
Ang II promotes the phenotypic transformation of adventitial fibroblast subpopulations , and the 2 subpop-ulations may play an important role in vascular remodeling and reparative process .
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
2016
Type:
Article
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