Volume 40, Issue 7 pp. 619-624

Mechanisms of action of angiogenin

Xiangwei Gao

Xiangwei Gao

Research Center for Environmental Genomics, and Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China

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Zhengping Xu

Corresponding Author

Zhengping Xu

Research Center for Environmental Genomics, and Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China

*Corresponding author: Tel, 86-571-88208164; Fax, 86-571-88208163; E-mail, [email protected]Search for more papers by this author
First published: 16 July 2008
Citations: 24

This work was supported by grants from the National Natural Science Foundation of China (30171035, 30470670 and 30770470), the Program for New Century Excellent Talents in University (No. NCET-05-0521) and the Zhejiang Provincial Program for the Cultivation of High-level Innovative Health Talents (2007-191)

Abstract

Angiogenin induces angiogenesis by activating vessel endothelial and smooth muscle cells and triggering a number of biological processes, including cell migration, invasion, proliferation, and formation of tubular structures. It has been reported that angiogenin plays its functions mainly through four pathways: (1) exerting its ribonucleolytic activity; (2) binding to membrane actin and then inducing basement membrane degradation; (3) binding to a putative 170-kDa protein and subsequently transducing signal into cytoplasm; and (4) translocating into the nucleus of target cells directly and then enhancing ribosomal RNA transcription. Angiogenin can also translocate into the nucleus of cancer cells and induces the corresponding cell proliferation. Furthermore, angiogenin has neuroprotective activities in the central nervous system and the loss of its function may be related to amyotrophic lateral sclerosis. This review intends to conclude the mechanisms underlying these actions of angiogenin and give a perspective on future research.

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