IFN-γ regulates survival and function of tumor-induced CD11b+ Gr-1high myeloid derived suppressor cells by modulating the anti-apoptotic molecule Bcl2a1.
IFN-γ regulates survival and function of tumor-induced CD11b+ Gr-1high myeloid derived suppressor cells by modulating the anti-apoptotic molecule Bcl2a1.
复制标题
IFN-γ 通过调节抗凋亡分子 Bcl2a1 来调节肿瘤诱导的 CD11b+ Gr-1 高骨髓源性抑制细胞的存活和功能。
DOI:
10.1002/eji.201444497
复制
发表时间:
2014-08
影响因子:
5.4
通讯作者:
Greten, Tim F.
中科院分区:
文献类型:
--
作者:
Medina-Echeverz, Jose;Haile, Lydia A.;Zhao, Fei;Gamrekelashvili, Jaba;Ma, Chi;Metais, Jean-Yves;Dunbar, Cynthia E.;Kapoor, Veena;Manns, Michael P.;Korangy, Firouzeh;Greten, Tim F.
Myeloid derived suppressor cells (MDSCs) play a critical role in suppression of immune responses in cancer and inflammation. Here, we describe how regulation of Bcl2a1 by cytokines controls the suppressor function of CD11b+Gr-1high granulocytic MDSCs. Co-culture of CD11b+Gr-1high granulocytic MDSCs with antigen-stimulated T cells and simultaneous blockade of IFN-γ by the use of anti-IFN-γ blocking antibody, IFN-γ−/− effector T cells, IFN-γR−/− MDSCs or STAT1−/− MDSCs led to up-regulation of Bcl2a1 in CD11b+Gr-1high cells, improved survival and enhanced their suppressor function. Molecular studies revealed that GM-CSF released by antigen-stimulated CD8+ T cells induced Bcl2a1 up-regulation, which was repressed in the presence of IFN-γ by a direct interaction of phosphorylated STAT-1 with the Bcl2a1 promotor. Bcl2a1 overexpressing granulocytic MDSCs demonstrated prolonged survival and enhanced suppressor function in vitro. Our data suggest that IFN-γ/ STAT1-dependent regulation of Bcl2a1 regulates survival and thereby suppressor function of granulocytic MDSCs.
登录
查看更多内容
影响因子:
3.7
作者:
Fridlender ZG;Sun J;Mishalian I;Singhal S;Cheng G;Kapoor V;Horng W;Fridlender G;Bayuh R;Worthen GS;Albelda SM
通讯作者:
Albelda SM
影响因子:
4.4
作者:
Haile, Lydia A.;Gamrekelashvili, Jaba;Greten, Tim F.
通讯作者:
Greten, Tim F.
影响因子:
20.3
作者:
Movahedi, Kiavash;Guilliams, Martin;Van Ginderachter, Jo A.
通讯作者:
Van Ginderachter, Jo A.
影响因子:
4.4
作者:
Pedra, JHF;Sukumaran, B;Fikrig, E
通讯作者:
Fikrig, E
影响因子:
32.4
作者:
Sade-Feldman, Moshe;Kanterman, Julia;Baniyash, Michal
通讯作者:
Baniyash, Michal