Caspase-2: controversial killer or checkpoint controller?

被引:37
作者
Kitevska, Tanja [1 ]
Spencer, Damian M. S. [1 ]
Hawkins, Christine J. [1 ,2 ]
机构
[1] La Trobe Univ, Dept Biochem, Bundoora, Vic 3086, Australia
[2] Royal Childrens Hosp, Childrens Canc Ctr, Murdoch Childrens Res Inst, Parkville, Vic 3052, Australia
基金
英国医学研究理事会;
关键词
Caspase; Protease; Apoptosis; Splicing; PIDDosome; Activation; ENDOPLASMIC-RETICULUM STRESS; PROGRAMMED CELL-DEATH; CYTOCHROME-C RELEASE; ACUTE LYMPHOBLASTIC-LEUKEMIA; INTERACTING PROTEIN RIP; INDUCED APOPTOSIS; DNA-DAMAGE; IN-VITRO; HUNTINGTONS-DISEASE; NUCLEAR-BODIES;
D O I
10.1007/s10495-009-0365-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The caspases are an evolutionarily conserved family of cysteine proteases, with essential roles in apoptosis or inflammation. Caspase-2 was the second caspase to be cloned and it resembles the prototypical nematode caspase CED-3 more closely than any other mammalian protein. An absence of caspase-2-specific reagents and the subtle phenotype of caspase-2-deficient mice have hampered definition of the physiological role of caspase-2 and identification of factors regulating its activity. Although some data implicate caspase-2 in apoptotic pathways, a link with apoptosis has been less firmly established for caspase-2 than for some other caspases. Emerging evidence suggests that caspase-2 regulates the cell cycle and may act as a tumour suppressor. This article critically reviews the current state of knowledge regarding the biochemistry and biology of this controversial caspase.
引用
收藏
页码:829 / 848
页数:20
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