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内皮分化基因受体介导溶血磷脂酸在人胰腺癌的作用及其机制

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Author:: No author available

Journal Title:: Chinese Journal of Pancreatology

Issue:: 3

DOI:: 10.3760/cma.j.issn.1674-1935.2012.03.029

Key Word:: No keyword available

Abstract：溶血磷脂酸(lysophosphatidic acid,LPA)是一种对多种细胞具有不同生物学活性作用的磷脂介质,在组织中广泛存在.LPA通过特定的细胞表面G蛋白耦合受体与细胞相互作用产生生物学效应.该LPA受体被命名为内皮分化基因受体Edg/LPA.在多种人恶性肿瘤中,存在一种叫做自体素/溶血样磷脂(autotaxin/Lyso-PLD)的代谢酶,是LPA合成的关键酶.LPA通过Edg/LPA受体转导信号影响肿瘤细胞的增殖、黏附、迁移,起着抗凋亡和促侵袭转移作用[1];通过上调肿瘤组织中血管内皮生长因子(VEGF)的表达,促进肿瘤血管生成.LPA还能促进基质金属蛋白酶(MMP,matrix metalloproteinases)和肿瘤血管生成因子的分泌,与肿瘤的局部侵袭转移有关[2].本文就LPA及其内皮分化基因受体Edg/LPA在胰腺癌发生、发展中的作用进行综述.

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