Research ResourcesHIV

Identification and characterization of HIV-specific resident memory CD8+ T cells in human lymphoid tissue

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Science Immunology  01 Jun 2018:
Vol. 3, Issue 24, eaar4526
DOI: 10.1126/sciimmunol.aar4526

Taking residence to defend

In HIV+ individuals receiving antiretroviral therapy, lymphoid tissues (LTs) that CD4+ T cells home to are a key site of HIV persistence. Studying the immune response to HIV in LTs has remained a challenge. By obtaining LTs from HIV+ individuals, Buggert et al. have carried out comprehensive transcriptional and epigenetic analyses on CD8+ T cells in these LTs. They report that CD8+ T cells in LTs of HIV+ individuals have a signature associated with resident memory T cells (TRMs) and that the frequency of these HIV-responsive LT-resident CD8+ T cells was considerably increased in elite controllers. The study brings to the fore the importance of HIV-specific LT-resident TRMs in restraining HIV replication in LTs.

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