Basic & Clinical Medicine ›› 2012, Vol. 32 ›› Issue (9): 1026-1029.

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Vasonatrin peptide promotes the synthesis of adiponectin in 3T3-L1 adipocytes of mouse and the underlying mechanismying mechanism

  

  • Received:2011-10-19 Revised:2011-12-29 Online:2012-09-05 Published:2012-08-28
  • Contact: Haifeng Zhang E-mail:hfzhang@fmmu.edu.cn
  • Supported by:
    scientific and technological major special project --;Natural science fund of Shaanxi Province

Abstract: 目的 探讨血管钠肽(VNP)对脂肪因子脂联素生成的影响及其机制。方法 在3T3-L1细胞分化的脂肪细胞,加入不同浓度的VNP,分别用实时定量PCR法和Western blot法检测脂联素的mRNA水平和蛋白表达,放免法测定细胞内cGMP的水平。结果 VNP可显著增加脂联素mRNA水平和蛋白表达,同时提高细胞内cGMP,含量为38±5~265±35 nmol/L,显著高于对照组的10±2nmol/L(P<0.01);该效应可用8-Br-cGMP诱导,可被cGMP依赖性蛋白激酶抑制剂KT-5823或钠尿肽受体NPR阻断剂HS-142-1抑制。结论 VNP可通过NPR/cGMP/PKG信号通路增加脂肪细胞脂联素的表达。

Key words: Vasonatrin peptide, Natriuretic peptides, Adipokines, Adiponectin

CLC Number: