Altieri Dario C
Department of Cancer Biology and the Cancer Center, LRB-428, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA.
Oncogene. 2003 Nov 24;22(53):8581-9. doi: 10.1038/sj.onc.1207113.
Survivin is a member of the inhibitor of apoptosis (IAP) gene family that has attracted attention from several viewpoints of basic and translational research. Its cell cycle-regulated expression at mitosis and association with the mitotic apparatus have been of interest to cell biologists studying faithful segregation of sister chromatids and timely separation of daughter cells. Investigators interested in mechanisms of apoptosis have found survivin an evolving challenge: while survivin inhibits apoptosis in vitro and in vivo, this pathway may be more selective as compared to cytoprotection mediated by other IAPs. Finally, basic and translational researchers in cancer biology have converged on survivin as a pivotal cancer gene, not simply for its sharp expression in tumors and not in normal tissues, but also for the potential exploitation of this pathway in cancer diagnosis and therapy. The objective of the present contribution is to line up current evidence and emerging concepts on the multifaceted functions of survivin in cell death and cell division, and how this pathway is being pursued for novel cancer therapeutic strategies.
生存素是凋亡抑制蛋白(IAP)基因家族的成员,从基础研究和转化研究的多个角度来看,它都备受关注。其在有丝分裂时受细胞周期调控的表达以及与有丝分裂器的关联,一直是研究姐妹染色单体准确分离和子细胞及时分离的细胞生物学家所感兴趣的。对凋亡机制感兴趣的研究人员发现生存素是一个不断演变的挑战:虽然生存素在体外和体内都能抑制凋亡,但与其他IAP介导的细胞保护作用相比,这条途径可能更具选择性。最后,癌症生物学领域的基础研究人员和转化研究人员都将生存素视为关键的癌症基因,这不仅是因为它在肿瘤中而非正常组织中有明显表达,还因为这条途径在癌症诊断和治疗中的潜在应用价值。本文的目的是梳理关于生存素在细胞死亡和细胞分裂中的多方面功能的现有证据和新出现的概念,以及这条途径如何被用于开发新的癌症治疗策略。