Abstract:
:Innate lymphoid cells (ILCs) are tissue-resident sentinels that are essential for early host protection from pathogens at initial sites of infection. However, whether pathogen-derived antigens directly modulate the responses of tissue-resident ILCs has remained unclear. In the present study, it was found that liver-resident type 1 ILCs (ILC1s) expanded locally and persisted after the resolution of infection with mouse cytomegalovirus (MCMV). ILC1s acquired stable transcriptional, epigenetic and phenotypic changes a month after the resolution of MCMV infection, and showed an enhanced protective effector response to secondary challenge with MCMV consistent with a memory lymphocyte response. Memory ILC1 responses were dependent on the MCMV-encoded glycoprotein m12, and were independent of bystander activation by proinflammatory cytokines after heterologous infection. Thus, liver ILC1s acquire adaptive features in an MCMV-specific manner.
journal_name
Nat Immunoljournal_title
Nature immunologyauthors
Weizman OE,Song E,Adams NM,Hildreth AD,Riggan L,Krishna C,Aguilar OA,Leslie CS,Carlyle JR,Sun JC,O'Sullivan TEdoi
10.1038/s41590-019-0430-1subject
Has Abstractpub_date
2019-08-01 00:00:00pages
1004-1011issue
8eissn
1529-2908issn
1529-2916pii
10.1038/s41590-019-0430-1journal_volume
20pub_type
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