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首页> 外文期刊>Journal of Cellular Physiology >Ras family genes: an interesting link between cell cycle and cancer.
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Ras family genes: an interesting link between cell cycle and cancer.

机译:Ras家族基因:一个有趣的细胞之间的联系周期和癌症。

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摘要

Ras genes are evolutionary conserved and codify for a monomeric G protein binding GTP (active form) or GDP (inactive form). The ras genes are ubiquitously expressed although mRNA analysis suggests different level expression in tissue. Mutations in each ras gene frequently were found in different tumors, suggesting their involvement in the development of specific neoplasia. These mutations lead to a constitutive active and potentially oncogenic protein that could cause a deregulation of cell cycle. Ras protein moderates cellular responses at several mitogens and/or differentiation factors and at external stimuli. These stimuli activate a series of signal transduction pathways that either can be independent or interconnected at different points. Recent observations begin to clarify the complex relationship between Ras activation, apoptosis, and cellular proliferation. A greater understanding of these processes would help to identify the factors directly responsible for cell cycle deregulation in several tumors, moreover it would help the design of specific therapeutic strategies, for the control on the proliferation of neoplastic cells. We summarize here current knowledge of ras genes family: structural and functional characteristics of Ras proteins and their links with cell cycle and cancer.
机译:Ras基因进化保守和编纂对于一个单体的G蛋白绑定三磷酸鸟苷(活跃形式)或GDP(不活跃的形式)。无所不在地表示虽然mRNA分析建议在组织不同水平的表达。经常被发现在每个ras突变基因在不同的肿瘤,这表明他们的参与在特定的肿瘤的发展。突变导致本构积极潜在的致癌蛋白可能导致放松管制的细胞周期。在一些有丝分裂原和/或细胞反应分化因素和外部刺激。这些刺激激活一系列信号转导途径,要么独立或相互关联的不同点。Ras激活之间复杂的关系,细胞凋亡和细胞增殖。将有助于理解这些过程确定因素直接负责在一些肿瘤细胞周期放松管制,此外,它将帮助特定的设计治疗策略的控制肿瘤细胞的扩散。这里目前ras基因家族的知识:Ras的结构和功能特征蛋白质与细胞周期和和他们的联系癌症。

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