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激活素A促进鸡胚背根神经节神经突起生长的作用机制
引用本文:方琳,王轶楠,刘海岩,李晨光,李继茹,柳忠辉. 激活素A促进鸡胚背根神经节神经突起生长的作用机制[J]. 兽医大学学报, 2012, 0(7): 1020-1022,1032
作者姓名:方琳  王轶楠  刘海岩  李晨光  李继茹  柳忠辉
作者单位:[1]吉林大学白求恩医学院,吉林长春130021 [2]长春市医学高等专科学校,吉林长春130000
基金项目:国家自然科学基金资助项目(30901329,30903123);吉林省科技厅课题(20090741,20090185,20090178);吉林省教育厅课题(20090547)
摘    要:采用半定量PCR检测激活素II型受体(ActRII)、钙基因相关肽(cGRP)、血管活性肠肽(VIP)mRNA表达,液相一质谱联用仪检测5-羟色胺释放水平。结果显示,5μg/L激活素A能明显促进鸡胚背根神经节神经突起生长,同时可见激活素A促进ActRIIA、CGRPmRNA表达及神经递质5-羟色胺释放,但对ActRIIB及VIPmRNA表达无影响。结果表明,ActivinA可能通过ActivinA—ActRIIA途径发挥作用,其促进鸡胚背根神经节神经突起生长与其上调CGRP表达及5-HT释放有关。

关 键 词:激活素A  神经突起  5-羟色胺  钙基因相关肽

Effect mechanism of activin A in neurite outgrowth of embryonic dorsal root ganglia of the chicken
FANG Lin,',WANG Yi-nan,LIU Hai-yan,LI Chen-guangt,LI Ji-ru,LIU Zhong-hui. Effect mechanism of activin A in neurite outgrowth of embryonic dorsal root ganglia of the chicken[J]. , 2012, 0(7): 1020-1022,1032
Authors:FANG Lin    WANG Yi-nan  LIU Hai-yan  LI Chen-guangt  LI Ji-ru  LIU Zhong-hui
Affiliation:1 (1. Norman Bethune College of Medicine, J ilin University, Changchun 130021, China ;2. Changhcun Med ical College, Changchun 130021, China)
Abstract:To investigate the effect mechanism of activin A in neurite outgrowth of embryonic dorsal root ganglia (DRG) of the chiken. ActRII,CGRP and VIP mRNA expressions were analyzed by semi-quantitative RT-PCR, and the secretion of serotonin (5-HT) was examined by liquid chromatography-tandem mass spectrometry (LC/MS). Activin A significantly induced neurite outgrowth of DRG and up-regulated the mRNA expressions of the activin receptor type IIA (ActRIIA) and CGRP in DRG. In addition,activin A stimulated 5-HT release from DRG. Activin A might stimulate DRG neurite outgrowth via activin A-ActRIIA pathway and promoting CGRP expression and 5-HT secretion.
Keywords:activin A  neurite outgrowth  serotonin  CGRP
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