Cichowski Karen, Hahn William C
Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115 USA.
Cell. 2008 Jun 13;133(6):958-61. doi: 10.1016/j.cell.2008.05.027.
Although initially described as the end state of cells after extended rounds of division in culture, it is now clear that cellular senescence induced by different stimuli plays an important role in tumor suppression in vivo. Three recent studies in Cell report that secreted proteins play an important role in enforcing the senescence response (Acosta et al., 2008; Kuilman et al., 2008; Wajapeyee et al., 2008). These new studies identify unanticipated contributors to this tumor-suppressing cell state.
虽然最初被描述为细胞在体外长时间传代培养后的终末状态,但现在很清楚的是,由不同刺激诱导的细胞衰老在体内肿瘤抑制中发挥着重要作用。《细胞》杂志最近的三项研究报道,分泌蛋白在强化衰老反应中发挥着重要作用(阿科斯塔等人,2008年;奎尔曼等人,2008年;瓦贾佩伊等人,2008年)。这些新研究确定了这种肿瘤抑制细胞状态中意想不到的促成因素。