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Expression and secretion of calcitonin gene related peptide in psoriatic plaque lesions
Author(s): 
Pages: 195-197
Year: Issue:  4
Journal: JOURNAL OF CLINICAL DERMATOLOGY

Keyword:  银屑病神经肽降钙素基因相关肽;
Abstract: 为了解精神心理刺激诱发加重银屑病的原因,探讨神经肽在银屑病发病机理中的作用.研究了降钙素基因相关肽(CGRP)在银屑病皮损中的分泌与表达,并确定CGRP作用的靶细胞.应用特异性放射免疫反相法分析,测定32例寻常型银屑病慢性斑块型皮损组织提取液中CGRP的含量,用抗生物素蛋白生物素过氧化物酶复合物法和兔抗人CGRP抗体进行免疫组化染色,观察CGRP分泌表达的部位和作用的靶细胞.结果寻常型银屑病慢性斑块型皮损组织提取物中CGRP的含量高于正常人,经统计学分析有显著性差异(P<0.01).同时免疫组化染色形态学观察发现CGRP分泌表达于皮损真皮毛细血管壁周及内皮细胞表面,以及表皮细胞间和树枝状细胞表面.提示寻常型银屑病斑块型皮损局部神经肽CGRP的分泌增加,皮损真皮微血管内皮细胞和表皮树枝状细胞与神经肽CGRP密切接触.CGRP与银屑病局部病变密切相关.
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