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抗M_2胆碱能受体抗体对大鼠血管舒张功能的影响

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摘要 目的探讨抗M2胆碱能受体抗体(M2-AA)在体内长期存在对大鼠血管功能的影响。方法以合成的M2受体抗原肽段建立主动免疫大鼠模型,SA-ELISA法检测M2-AA的含量,亲和层析法提纯免疫鼠血清中的M2-AA IgGs,并建立M2-AA被动免疫大鼠模型,检测被动免疫模型的离体血管舒张功能。结果主动免疫后M2肽段组血清M2-AA含量明显高于溶剂对照组(P〈0.01);被动免疫后M2-AA(+)组血清M2-AA含量持续保持在较高水平(P〈0.05);在(0.1~10)μmol/L乙酰胆碱作用下,M2-AA(+)组大鼠的胸主动脉出现血管舒张功能浓度依赖性降低,而(0.001~1)μmol/L酸化硝普钠对血管的舒张功能无影响。结论 M2-AA在体内长期存在,可引起内皮依赖性的血管舒张功能浓度依赖性降低,提示M2-AA可能是导致内皮功能受损的一种因素。
出处 《中西医结合心脑血管病杂志》 2010年第9期1091-1093,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
基金 国家自然科学基金(No.30670835) 山西省研究生优秀创新项目(No.20081052)
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  • 1Fu LX, Magnusson Y, Bergh C, et al. Localization of a functional autoimmune epitomes on the muscarinic acetylcholin receptor - 2 in patients with idiopathic dilated cardiomyopathy[J]. J Clin Invest, 1993,91:1964 - 1968.
  • 2Brodde OE, Bruck H, Leineweber K, et a l. Distribution and physio- logical function of adrenergic and muscarinic receptor subtypes in the human heart[J]. Basic Res Cardiol, 2001, 96:528 -538.
  • 3Griffin MT, Figueroa KW, Liller S,et al, Estimation of agonist activity at G protein - coupled receptors: Analysis of M2 muscarinic receptor signaling through Gi/o,Gs,and G15[J]. J Pharmacol Exp Ther, 2007,321(3) :1193 - 1207.
  • 4Baba A, Yoshikawa T, Fukuda Y, et al. Autoantibodies against M2 - muscarinie acetyleholine receptors:New upstream targets in atrial fibrillation in patients with dilated cardiomyopathy[J]. Eur Heart J,2004,25,1108 - 1115.
  • 5Lazzerini PE,Capecchi PL, Guideri F, et al. Autoantibody - mediated cardiac arrhythmias: Mechanisms and clinical implications[J]. Basic Res Cardiol, 2008, 103:1 -11.
  • 6左琳,缪国斌,牛栓成,包海军,刘忠保,张炜芳,张麟,刘慧荣.心脏抗β_2-肾上腺素能受体自身抗体的产生与心肌重构的关系[J].中国心血管病研究,2008,6(4):287-290. 被引量:4
  • 7Matsui S,Fu ML,Shimizu M,et al. Dilated cardiomyopathy defines serum autoantibodies against G - protein - coupled cardiovascular receptors[J]. Autoimmunity, 1995, 21 (2) :85 - 88.
  • 8Hernandez CC, Naseimento JH, Chaves EA,et al. Autoantibodies enhance agonist action and binding to cardiac muscarinic receptors in chronic Chagas disease[J]. J Recept Signal Transduct Res, 2008,28(4) :375 - 401.
  • 9Wallukat G, Fu MI., Magnusson Y,et a!. Agonistic effects of anti - peptide antibodies and autoantibodies directed against adrenergic and eholinergie receptors: Absence of desensitization [J]. Blood Press Suppl, 1996,3:31-36.
  • 10Matsui S,Fu M. Pathological importance of anti-G-protein coupled receptor autoantibodies[J]. Int J Cardiol,2006,112(l):27 - 29.

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