ADP-核糖基化因子1的功能及其与肿瘤相关性的研究进展

Functions of human ADP-ribosylation factor 1 and association with tumors

ADP核糖基化因子(ADPribosylationfactor,ARF)家族作为霍乱毒素催化GS蛋白ADP核糖基化反应的辅助因子,目前其病理生理作用仅对从功能角度定义的这一蛋白家族有价值,而进一步研究发现,ARF与高尔基复合体息息相关,在细胞内物质运输和信号转导过程中具有更加重要的生理功能。在这一蛋白家族中发现最早、研究最深入的是ADP核糖基化因子1。作者就此蛋白的调控分子和效应分子、功能及其与肿瘤的相互关系作一综述。

In 1982, ADP-ribosylation factors (ARFs), a family of GTP-binding proteins associated with Golgi complexes, were initially recognized based on their ability to stimulate the ADP-ribosyltransferase activity of cholera toxin in vitro, and named so. In fact, this pathophysiologic activity has been useful for functionally defining members of the ARF family. However, during last decade, genetic and biochemical studies have shown the physiologic role of ARFs that also play an essential role in intracellular vesicular transport, particularly in Golgi complexes, activate phospholipase D activity as a nod of signal transduction of cells. Moreover, their more functions were revealed continuously recently. Especially, human ARF1 was found earliest, and studied profoundly in human body cell. Therefore, in this article, there is a comprehensive review about its regulators and effectors, functions and its possibilities involved in tumorigenesis, development of tumors.