Kallistatin结构功能与信号通路

陈思伊, 庄贞静, 许瑞安

中国生物化学与分子生物学报 ›› 2012, Vol. 28 ›› Issue (3) : 197-202.

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中国生物化学与分子生物学报 ›› 2012, Vol. 28 ›› Issue (3) : 197-202.
综述

Kallistatin结构功能与信号通路

  • 陈思伊,庄贞静,许瑞安*
作者信息 +

Structure, Activities and Signaling Pathways of Kallistatin

  • CHEN Si-Yi, ZHUANG Zhen-Jing, XU Rui-An*
Author information +
文章历史 +

摘要

Kallistatin是一种丝氨酸蛋白酶抑制剂.早期研究发现,它能与组织激肽释放酶结合并抑制其活性,随后kallistatin的抗血管生成、抗炎、抗肿瘤、抗氧化等功能也逐步被发现. Kallistatin有2个主要功能结构域:反应中心环和肝素结合结构域,各自发挥不同的作用. Kallistatin通过肝素结合结构域竞争性抑制血管内皮生长因子(VEGF)和肿瘤坏死因子与它们的受体结合,进而起到抗血管生成和抗炎作用. 近年研究发现,kallistatin的多种功能由不同信号通路介导,主要为PI3KAkt信号通路和TNF-α-NF-κB信号通路.此外,kallistatin还通过丝裂原活化激酶(mitogenactivated protein kinase,MAPK)等信号通路发挥作用.本文就目前研究的kallistatin的结构功能及其在PI3KAkt、TNFα等多种信号通路中的调节功能和作用机制进行阐述.

Abstract

Kallistatin is a unique serine proteinase inhibitor (serpin) isolated from normal human serum as a kallikreinbinding protein. Recent studies showed that kallistatin is of multiple biologic functions besides binding tissue kallikrein in antiangiogenesis, protection against inflammation, anticancer, oxidation resistance. As a heparinbinding serpin, the structures related to these activities involve a reactive center loop (RCL) and the heparin binding domain, which competes the bonding of vascular endothelial growth factor (VEGF) and tumor necrosis factor-α (TNF-α) binding to their receptors for antiangiogenesis and antiinflammation activities. Various signaling pathways contribute to kallistatin functions, including primarily the PI3KAkt and TNF-α-NF-κB signal pathway, as well as the MAPK (mitogenactivated protein kinase) and other pathways. In this review, the molecular structure and biological activities of kallistatin is overviewed, the regulation and mechanism of kallistatin signaling pathways are also discussed.

关键词

kallistatin / 作用机理 / 信号通路

Key words

kallistatin / mechanism / signaling pathway

引用本文

导出引用
陈思伊, 庄贞静, 许瑞安. Kallistatin结构功能与信号通路[J]. 中国生物化学与分子生物学报, 2012, 28(3): 197-202
CHEN Si-Yi, ZHUANG Zhen-Jing, XU Rui-An. Structure, Activities and Signaling Pathways of Kallistatin[J]. Chinese Journal of Biochemistry and Molecular Biology, 2012, 28(3): 197-202
中图分类号: R789   

参考文献

 
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基金

国家自然科学基金项目(No81072578);福建省自然科学基金(No2010J05026); 福建发改委项目(No200925); 厦门市科技局项目(No3502Z20053046)

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