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首页> 外文期刊>Cellular immunology >Cross-talks between c-Kit and PKC isoforms in HMC-1(560) and HMC-1(560,816) cells. Different role of PKC delta in each cellular line
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Cross-talks between c-Kit and PKC isoforms in HMC-1(560) and HMC-1(560,816) cells. Different role of PKC delta in each cellular line

机译:HMC-1(560)和HMC-1(560,816)细胞中c-Kit和PKC亚型之间的串扰。 PKCδ在每个细胞系中的不同作用

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The c-kit inhibitor STI571 represents one of the most important treatments for patients with mastocytosis. However, intracellular pathways modulated by this compound are not completely defined. Here, STI571 effect on Protein Kinase C (PKC) regulation is determined in HMC-1 mast cell lines. STI571 activates PKC delta isoform resulting in HMC-1(560) apoptosis. The apoptosis observed is PKC delta-dependent, since PKC delta-silencing avoids STI571 effect, c-kit inhibition implies nuclear PKCS translocation characterized by a clear dependence on actin cytoskeleton integrity in HMC-1(560) cell line, but not in HMC-1(560,816). Therefore, PKC delta modulations can lead to a serious decrease in STI571 treatment-effectiveness. (C) 2014 The Authors. Published by Elsevier Inc.
机译:c-kit抑制剂STI571是肥大细胞增多症患者最重要的治疗方法之一。但是,该化合物调节的细胞内途径尚未完全定义。在这里,STI571对蛋白激酶C(PKC)调节的作用是在HMC-1肥大细胞系中确定的。 STI571激活PKCδ亚型,导致HMC-1(560)凋亡。观察到的凋亡是PKCδ依赖性的,因为PKCδ沉默可避免STI571效应,c-kit抑制作用意味着核PKCS易位,其特征是对HMC-1(560)细胞系中肌动蛋白细胞骨架完整性的明显依赖性,而对HMC- 1(560,816)。因此,PKC增量调制会导致STI571治疗效果的严重下降。 (C)2014作者。由Elsevier Inc.发布

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