T cell memory. A local macrophage chemokine network sustains protective tissue-resident memory CD4 T cells.

T cell memory. A local macrophage chemokine network sustains protective tissue-resident memory CD4 T cells.
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DOI:
10.1126/science.1257530
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发表时间:
2014-10-03
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Iwasaki A
Iwasaki A
中科院分区:
其他
文献类型:
--
作者:
Iijima N;Iwasaki A

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CD8 tissue-resident memory T (TRM) cells provide efficient local control of viral infection, but the role of CD4 TRMis less clear. Here, by using parabiotic mice, we show that a preexisting pool of CD4 TRMcells in the genital mucosa was required for full protection from a lethal herpes simplex virus 2 (HSV-2) infection. Chemokines secreted by a local network of macrophages maintained vaginal CD4 TRMin memory lymphocyte clusters (MLCs), independently of circulating memory T cells. CD4 TRMcells within the MLCs were enriched in clones that expanded in response to HSV-2. Our results highlight the need for vaccine strategies that enable establishment of TRMcells for protection from a sexually transmitted virus and provide insights as to how such a pool might be established.
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