基于腺苷A3受体途径针刺对足三里浅筋膜cAMP/Epac及Ras/MAPK途径的调节作用研究

China Journal of Traditional Chinese Medicine and Pharmacy(2021)

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Abstract
目的:探讨针刺对足三里浅筋膜cAMP/Epac、Ras/MAPK途径的调节及其与腺苷A3受体途径之间的关系.方法:大鼠随机分为对照组、针刺组、针刺+IB-MECA组和针刺+Reversine组,各组在针刺后20min取足三里穴位区浅筋膜标本,HE和Masson染色检测针刺对组织结构及胶原沉积的影响,Real-Time PCR检测cAMP、Epac、Ras、ERK1/2 mRNA表达,Western Blot检测cAMP、Epac、Ras、p-ERK1/2、ERK、p-P38、P38等蛋白表达.结果:针刺可引起浅筋膜组织细胞排列紊乱,有细胞脱落现象,cAMP、Epac mRNA表达下调,Ras、ERK1/2 mRNA表达上调,cAMP、Epac信号蛋白表达下调,Ras、p-ERK1/2、p-P38信号蛋白表达上调,腺苷A3受体激动剂IB-MECA可加强上述改变,而腺苷A3受体拮抗剂Reversine可减弱该效应.结论:腺苷A3受体激活后镇痛可能与上调浅筋膜组织Ras/MAPK途径、下调CAMP/Epac途径有关.
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