期刊
MOLECULAR CANCER RESEARCH
卷 7, 期 4, 页码 443-451出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1541-7786.MCR-08-0458
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资金
- MEXT, Japan
- Takeda Science Foundation
- Canadian Institutes of Health Research (CIHR)
- National Cancer Institute (NCI) [CA111515]
Growing evidence indicates that ubiquitin ligases play a critical role in the hypoxia response. Among them, Siah2, a RING finger ligase, is an important regulator of pathways activated under hypoxia. Siah2 regulates prolyl hydroxylases PHD3 and 1 under oxygen concentration of 2% to 5%, thereby allowing accumulation of hypoxia-inducible factor (HIF)-1a, a master regulator of the hypoxia response within the range of physiological normoxic to mild hypoxic conditions. Growing evidence also indicates an important function for Siah2 in tumor development and progression based on pancreatic cancer, mammary tumor, and melanoma mouse models. This review summarizes our current understanding of Siah2 regulation and function with emphasis on hypoxia and tumorigenesis. (Mol Cancer Res 2009;7(4):443-51)
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