The synergistic effect of endothelin-1 and basic fibroblast growth factor on rat vascular smooth muscle cell proliferation / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12)2000.
Article
in Chinese
| WPRIM
| ID: wpr-517291
ABSTRACT
AIM:
The synergistic effect of basic fibroblast growth factor (bFGF) and endothelin-1 (ET-1) on rat aortic vascular smooth muscle cells(VSMC) proliferation was observed. The possible mechanism of the synergism was also investigated.METHODS:
BrdU incorporation and cell counting method were adopted to value the pro-proliferative effect of VSMC. Western-blotting was used to observe the variation of bFGF and FGFR-1 isoforms expression.RESULTS:
bFGF and ET-1 could promote VSMC proliferation separately, and synergistically in combination. The synergism was dose- and time-dependent. ET-1 increased all the three bFGF isoforms and FGFR-1 protein level in dose- and time-dependent manner. In addition, after exhaustion of intracellular PKC, the upregulation effects of ET-1 on bFGF and FGFR-1 expressions in VSMC both inclined.CONCLUSION:
bFGF and ET-1 had synergistic effect on VSMC proliferation. ET-1 may increase the responsiveness of VSMC to bFGF through modulation of bFGF isoforms together with FGFR-1, which was PKC-dependent.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
2000
Type:
Article
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