Membrane-bound IL-22 after de novo production in tuberculosis and anti-Mycobacterium tuberculosis effector function of IL-22+ CD4+ T cells.
Membrane-bound IL-22 after de novo production in tuberculosis and anti-Mycobacterium tuberculosis effector function of IL-22+ CD4+ T cells.
复制标题
DOI:
10.4049/jimmunol.1004129
复制
发表时间:
2011-07-01
期刊:
影响因子:
--
通讯作者:
Chen ZW
中科院分区:
文献类型:
--
作者:
Zeng G;Chen CY;Huang D;Yao S;Wang RC;Chen ZW
The role of IL-22-producing CD4+ T cells in intracellular pathogen infections is poorly characterized. IL-22-producing CD4+ T cells may also express other effector molecules, and therefore synergize or contribute to anti-microbial effector function. This hypothesis cannot be tested by conventional approaches manipulating a single IL-22 cytokine at genetic and protein levels, and IL-22+ T cells cannot be purified for evaluation due to secretion nature of cytokines. Here, we surprisingly found that upon activation, CD4+ T cells in M. tuberculosis-infected macaques or humans could evolve into T effector cells bearing membrane-bound IL-22 after de novo IL-22 production. Membrane-bound IL-22+ CD4+ T effector cells appeared to mature in vivo and sustain membrane distribution in highly-inflammatory environments during active M. tuberculosis infection. NSOM/QD-based nanoscale molecular imaging revealed that membrane-bound IL-22, like CD3, distributed in membrane and engaged as ~100–200 nm nanoclusters or ~300–600 nm nanodomains for potential interaction with IL-22 receptor. Importantly, purified membrane-bound IL-22+ CD4+ T cells inhibited intracellular M. tuberculosis replication in macrophages. Our findings suggest that IL-22-producing T cells can evolve to retain IL-22 on membrane for prolonged IL-22 half-lives and to exert efficient cell-cell interaction for anti-M. tuberculosis effector function.
登录
查看更多内容
影响因子:
4.4
作者:
Scriba, Thomas J.;Kalsdorf, Barbara;Abrahams, Deborah-Ann;Isaacs, Fatima;Hofmeister, Jessica;Black, Gillian;Hassan, Hisham Y.;Wilkinson, Robert J.;Walzl, Gerhard;Gelderbloem, Sebastian J.;Mahomed, Hassan;Hussey, Gregory D.;Hanekom, Willem A.
通讯作者:
Hanekom, Willem A.
影响因子:
64.8
作者:
Cella, Marina;Fuchs, Anja;Vermi, William;Facchetti, Fabio;Otero, Karel;Lennerz, Jochen K. M.;Doherty, Jason M.;Mills, Jason C.;Colonna, Marco
通讯作者:
Colonna, Marco
影响因子:
15.9
作者:
Bruns, Heiko;Meinken, Christoph;Stenger, Steffen
通讯作者:
Stenger, Steffen
影响因子:
20.3
作者:
Chen, Yong;Shao, Lingyun;Chen, Zheng W.
通讯作者:
Chen, Zheng W.
影响因子:
3.1
作者:
Huang, Dan;Shen, Yun;Chen, Zheng W.
通讯作者:
Chen, Zheng W.