Autophagy regulates selective HMGB1 release in tumor cells that are destined to die.

Autophagy regulates selective HMGB1 release in tumor cells that are destined to die.
复制标题

DOI:
10.1038/cdd.2008.143
复制
发表时间:
2009-01
影响因子:
12.4
通讯作者:
Thorburn, A.
Thorburn, A.
中科院分区:
生物学1区
文献类型:
--
作者:
Thorburn, J.;Horita, H.;Redzic, J.;Hansen, K.;Frankel, A. E.;Thorburn, A.

文献摘要

参考文献

被引文献

相似文献

巨自噬(下文称为自噬)可以增加或减少响应于各种刺激的细胞死亡的量。为了测试自噬是否也控制与垂死细胞相关的特征,我们研究了表皮生长因子受体(EGFR)靶向白喉毒素(DT-EGF)对肿瘤细胞的杀伤作用。DT-EGF以相似的效率杀死上皮和胶质母细胞瘤肿瘤细胞,但通过不同的机制,这取决于细胞在用药物治疗时是否激活自噬。诱导自噬的死亡细胞选择性地释放免疫调节剂HMGB 1,而不引起细胞膜溶解和经典坏死。相反,被DT-EGF杀死的细胞在自噬被阻断的情况下激活半胱天冬酶,但保留HMGB 1。这些数据表明,通过增加或减少自噬来操纵垂死细胞的免疫原性可能是可行的。
Macroautophagy (hereafter referred to as autophagy) can increase or decrease the amount of cell death in response to various stimuli. To test if autophagy also controls the characteristics associated with dying cells, we studied tumor cell killing by Epidermal Growth Factor Receptor (EGFR)-targeted diphtheria toxin (DT-EGF). DT-EGF kills epithelial and glioblastoma tumor cells with similar efficiency but by different mechanisms that depend on whether the cells activate autophagy when treated with the drug. Dying cells in which autophagy is induced selectively release the immune modulator HMGB1 without causing lysis of the cell membrane and classical necrosis. Conversely, cells that are killed by DT-EGF where autophagy is blocked, activate caspases but retain HMGB1. These data suggest that it may be feasible to manipulate the immunogenicity of dying cells by increasing or decreasing autophagy.
DOI: 10.1038/nature00858
发表时间: 2002-07-11
期刊: NATURE
影响因子: 64.8
作者:
Scaffidi, P;Misteli, T;Bianchi, ME
通讯作者: Bianchi, ME
DOI: 10.1158/1078-0432.ccr-07-1595
发表时间: 2007-12-15
影响因子: 11.5
作者:
Amaravadi, Ravi K.;Thompson, Craig B.
通讯作者: Thompson, Craig B.
DOI: 10.1152/ajpcell.00616.2005
发表时间: 2006-12-01
影响因子: 5.5
作者:
Bell, Charles W.;Jiang, Weiwen;Pisetsky, David S.
通讯作者: Pisetsky, David S.
DOI: 10.1016/j.cell.2007.03.045
发表时间: 2007-06-01
期刊: CELL
影响因子: 64.5
作者:
Colell, Anna;Ricci, Jean-Ehrland;Green, Douglas R.
通讯作者: Green, Douglas R.
DOI: 10.1016/j.ccr.2006.06.001
发表时间: 2006-07-01
期刊: CANCER CELL
影响因子: 50.3
作者:
Degenhardt, Kurt;Mathew, Robin;White, Eileen
通讯作者: White, Eileen