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首页> 中文期刊> 《生物医学研究杂志（英文版）》 >Effects of calcium-activated chloride channels on proliferation of pulmonary artery smooth muscle cells in rats under chronic hypoxic condition

Effects of calcium-activated chloride channels on proliferation of pulmonary artery smooth muscle cells in rats under chronic hypoxic condition

         
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摘要

Objective:To investigate the effects of calcium-activated chloride(ClCa)channels on proliferation of pulmonary artery smooth muscle cells(PASMCs)in rats under chronic hypoxic condition.Methods:The cultured PASMCs were placed under normoxic and chronic hypoxic conditions:The cells were observed by light and electron microscope;The cell cycles were observed by flow-cytometry;Immunocytochemistry staining was used to detect the expressions of PCNA,c-fos and c-jun of PASMCs;Cytoplasmic free Ca2+ con-cweenrter actoionntr a([cCtiale2+ ]pi)h einn oPtAypSeM uCndse wr anso rimnvoexsitcig caotnedd ibtiyo nfslu.oOrbessceervnat tqiouna nbtyit atrtaionnsm uissisnigo nfl euloercotsropne cmtriocprohsoctoompee:t Ienr.kRyteospulaltssm:T ohfe c PonAtSraMctCiles phenotype cells,myofilament bundles were abundant and the content of cell organs such as Golgi's bodies were rare.The PASMCs were synthetic phenotype under chronic hypoxic condition.There were increased free ribosomes,dilated rough endoplasmic reticulums,highly developed Golgi complexes,decreased or disappeared thick filaments and dense body in kytoplasm of synthetic phenotype cells.Acofntedri tNioFnA;Tahned NIAFAA-9a4n,d t hIAe sAit-u9a4t iwonesr ew sehroew renv teor sseidg nTifhiec annutmlyb deerc orfe aSs+eG th2Mem P fAroSmM(C2s8.w6±ere1 s.0ig)n%if ticoa(n1t6ly.0 in±cr1e.a6s)e%d iann dch trhoen nicu hmybpeorx oicf Gof0 Gpr1o PliAfeSraMtiCngs scieglnl infuiccalnetulsy ainnctirgeeanse wd afsro smig n(7if1ic.4a±ntl1y.9in)%cr etaos(e8d3;.T9±he1 N.6F)A% a(Pnd < I A0.A01-9).4 I nw cehrer osnhiocw hny ptoo xsiicg nciofnicdaintitolyn sd,etchree eaxsep riet sfsroiomn(81±6)% to(27±7)%(P < 0.01).The expression of c-fos and c-jun were significantly increased in chronic hypoxic conditions;The NFA and IAA-94 were shown to significantly decrease them from 0.15±0.02,0.32±0.05 to 0.05±0.01,0.12±0.05,respectively(toP(<1 01.70.17)±;U15n.d4e)rn mchorlo/Lni(cP h

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