Journal
NATURE IMMUNOLOGY
Volume 17, Issue 10, Pages 1187-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ni.3543
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Funding
- Birmingham Science City - Experimental Medicine Network of Excellence project
- National Health and Medical Research Council of Australia [GNT1085509, GNT1085151]
- Monash University
- amfAR Research Consortium on HIV Eradication [109327-59-RGRL]
- Creative and Novel Ideas in HIV Research Program of The International AIDS Society
- Australian Centre for HIV and Hepatitis Virology Research [2015-69]
- Priority Research Program of Shandong Academy of Sciences
- Shandong Province Taishan Scholar Program
- Sylvia and Charles Viertel Foundation
- Delaney AIDS Research Enterprise
- Martin Delaney Collaboratories
- National Institute for Allergy and Infectious Diseases of the US National Institutes of Health [U19 AI096109]
- Bloodwise, UK [15021]
- National Cancer Institute of the US National Institutes of Health [HHSN261200800001E]
- Victorian State Government Operational Infrastructure Support and Australian Government NHMRC Independent Research Institute Infrastructure Support scheme
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During unresolved infections, some viruses escape immunological control and establish a persistant reservoir in certain cell types, such as human immunodeficiency virus (HIV), which persists in follicular helper T cells (T-FH cells), and Epstein-Barr virus (EBV), which persists in B cells. Here we identified a specialized group of cytotoxic T cells (T-C cells) that expressed the chemokine receptor CXCR5, selectively entered B cell follicles and eradicated infected TFH cells and B cells. The differentiation of these cells, which we have called 'follicular cytotoxic T cells' (T-FC cells), required the transcription factors Bcl6, E2A and TCF-1 but was inhibited by the transcriptional regulators Blimp1, Id2 and Id3. Blimp1 and E2A directly regulated Cxcr5 expression and, together with Bcl6 and TCF-1, formed a transcriptional circuit that guided T-FC cell development. The identification of T-FC cells has far-reaching implications for the development of strategies to control infections that target B cells and T-FH cells and to treat B cell-derived malignancies.
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