Abstract

亲环素A(cyclophilin A, CypA)作为亲环素家族中最重要的一员,在自然界中广泛表达,发挥着肽基脯氨酰顺反异构酶(peptidyl-prolyl cis-trans isomeras, PPⅠase)活性和分子伴侣效应,辅助细胞内蛋白质的正确折叠,参与免疫抑制,介导炎性反应,平衡细胞内外胆固醇。随着对CypA认识的加深,人们逐渐意识到它与恶性肿瘤之间的密切联系。CypA最先被发现在肺癌中高表达,具有促进肺癌细胞生长、抑制凋亡、介导侵袭转移等作用,可能成为一个肺癌的早期诊断和治疗的新靶点。

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