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A Transcriptionally Distinct CXCL13 + CD103 + CD8 + T-cell Population Is Associated with B-cell Recruitment and Neoantigen Load in Human Cancer
Ist Teil von
Cancer immunology research, 2019-05, Vol.7 (5), p.784-796
Ort / Verlag
United States
Erscheinungsjahr
2019
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
The chemokine CXCL13 mediates recruitment of B cells to tumors and is essential for the formation of tertiary lymphoid structures (TLSs). TLSs are thought to support antitumor immunity and are associated with improved prognosis. However, it remains unknown whether TLSs are formed in response to the general inflammatory character of the tumor microenvironment, or rather, are induced by (neo)antigen-specific adaptive immunity. We here report on the finding that the TGFβ-dependent CD103
CD8
tumor-infiltrating T-cell (TIL) subpopulation expressed and produced CXCL13. Accordingly, CD8
T cells from peripheral blood activated in the presence of TGFβ upregulated CD103 and secreted CXCL13. Conversely, inhibition of TGFβ receptor signaling abrogated CXCL13 production. CXCL13
CD103
CD8
TILs correlated with B-cell recruitment, TLSs, and neoantigen burden in six cohorts of human tumors. Altogether, our findings indicated that TGFβ plays a noncanonical role in coordinating immune responses against human tumors and suggest a potential role for CXCL13
CD103
CD8
TILs in mediating B-cell recruitment and TLS formation in human tumors.
Sprache
Englisch
Identifikatoren
ISSN: 2326-6066
eISSN: 2326-6074
DOI: 10.1158/2326-6066.CIR-18-0517
Titel-ID: cdi_proquest_miscellaneous_2193166328
Format
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