Pulmonary infection with influenza A virus induces site-specific germinal center and T follicular helper cell responses.
Pulmonary infection with influenza A virus induces site-specific germinal center and T follicular helper cell responses.
复制标题
DOI:
10.1371/journal.pone.0040733
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Waldschmidt TJ
中科院分区:
文献类型:
--
作者:
Boyden AW;Legge KL;Waldschmidt TJ
Protection from influenza A virus (IAV) challenge requires switched, high affinity Abs derived from long-lived memory B cells and plasma cells. These B cell subsets are generated in germinal centers (GCs), hallmark structures of T helper cell-driven B cell immunity. A full understanding of the GC reaction after respiratory IAV infection is lacking, as is the characterization of T follicular helper (TFH) cells that support GCs. Here, GC B cell and TFH cell responses were studied in mice following pulmonary challenge with IAV. Marked GC reactions were induced in draining lymph nodes (dLNs), lung, spleen and nasal-associated lymphoid tissue (NALT), although the magnitude and kinetics of the response was site-specific. Examination of switching within GCs demonstrated IgG2+ cells to compose the largest fraction in dLNs, lung and spleen. IgA+ GC B cells were infrequent in these sites, but composed a significant subset of the switched GC population in NALT. Further experiments demonstrated splenectomized mice to withstand a lethal recall challenge, suggesting the spleen to be unnecessary for long-term protection in spite of strong GC responses in this organ. Final studies showed that TFH cell numbers were highest in dLNs and spleen, and peaked in all sites prior to the height of the GC reaction. TFH cells purified from dLNs generated IL-21 and IFNγ upon activation, although CD4+CXCR5− T effector cells produced higher levels of all cytokines. Collectively, these findings reveal respiratory IAV infection to induce strong T helper cell-driven B cell responses in various organs, with each site displaying unique attributes.
登录
查看更多内容
DOI:
10.1084/jem.20090410
发表时间:
2009-10-26
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
GeurtsvanKessel CH;Willart MA;Bergen IM;van Rijt LS;Muskens F;Elewaut D;Osterhaus AD;Hendriks R;Rimmelzwaan GF;Lambrecht BN
通讯作者:
Lambrecht BN
影响因子:
32.4
作者:
Choi YS;Kageyama R;Eto D;Escobar TC;Johnston RJ;Monticelli L;Lao C;Crotty S
通讯作者:
Crotty S
DOI:
10.1084/jem.20080979
发表时间:
2008-12-22
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Choi YS;Baumgarth N
通讯作者:
Baumgarth N
影响因子:
6.4
作者:
Alexander, Carla-Maria;Tygrett, Lorraine T.;Waldschmidt, Thomas J.
通讯作者:
Waldschmidt, Thomas J.
影响因子:
3.7
作者:
Chapman, TJ;Castrucci, MR;Topham, DJ
通讯作者:
Topham, DJ