CD4 T cell help prevents CD8 T cell exhaustion and promotes control of Mycobacterium tuberculosis infection.
CD4 T cell help prevents CD8 T cell exhaustion and promotes control of Mycobacterium tuberculosis infection.
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CD4 T 细胞有助于防止 CD8 T 细胞耗竭并促进结核分枝杆菌感染的控制。
DOI:
10.1016/j.celrep.2021.109696
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发表时间:
2021-09-14
期刊:
影响因子:
8.8
通讯作者:
Behar SM
中科院分区:
文献类型:
--
作者:
Lu YJ;Barreira-Silva P;Boyce S;Powers J;Cavallo K;Behar SM
CD4 T cells are essential for immunity to tuberculosis because they produce cytokines, including interferon-γ. Whether CD4 T cells act as “helper” cells to promote optimal CD8 T cell responses during Mycobacterium tuberculosis is unknown. Using two independent models, we show that CD4 T cell help enhances CD8 effector functions and prevents CD8 T cell exhaustion. We demonstrate synergy between CD4 and CD8 T cells in promoting the survival of infected mice. Purified helped, but not helpless, CD8 T cells efficiently restrict intracellular bacterial growth in vitro. Thus, CD4 T cell help plays an essential role in generating protective CD8 T cell responses against M. tuberculosis infection in vitro and in vivo. We infer vaccines that elicit both CD4 and CD8 T cells are more likely to be successful than vaccines that elicit only CD4 or CD8 T cells. Whether CD4 T cells “help” CD8 T cells to control Mycobacterium tuberculosis infection is unknown. Lu et al. demonstrate that helped, but not helpless, CD8 T cells maintain effector functions and avoid exhaustion. Helped CD8 T cells restrict intracellular bacillary growth, and synergy between CD4 and CD8 T cells prolongs survival of infected mice.
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DOI:
10.1002/art.40038
发表时间:
2017-05
期刊:
Arthritis & rheumatology (Hoboken, N.J.)
影响因子:
--
作者:
Comte D;Karampetsou MP;Yoshida N;Kis-Toth K;Kyttaris VC;Tsokos GC
通讯作者:
Tsokos GC
影响因子:
6.7
作者:
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通讯作者:
Ernst JD
影响因子:
3.1
作者:
Chackerian, AA;Perera, TV;Behar, SM
通讯作者:
Behar, SM
影响因子:
6.7
作者:
Carpenter SM;Nunes-Alves C;Booty MG;Way SS;Behar SM
通讯作者:
Behar SM
DOI:
10.1084/jem.20100090
发表时间:
2010-12-20
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Geldmacher C;Ngwenyama N;Schuetz A;Petrovas C;Reither K;Heeregrave EJ;Casazza JP;Ambrozak DR;Louder M;Ampofo W;Pollakis G;Hill B;Sanga E;Saathoff E;Maboko L;Roederer M;Paxton WA;Hoelscher M;Koup RA
通讯作者:
Koup RA