| Literature DB >> 34602651 |
Steven M Elzein1, Jason M Zimmerer2, Jing L Han2,3, Bryce A Ringwald1, Ginny L Bumgardner4.
Abstract
CD8+ T cells have conventionally been studied in relationship to pathogen or tumor clearance. Recent reports have identified novel functions of CXCR5+CD8+ T cells that can home to lymphoid follicles, a key site of antibody production. In this review we provide an in-depth analysis of conflicting reports regarding the impact of CXCR5+CD8+ T cells on antibody production and examine the data supporting a role for antibody-enhancement (B cell "helper") and antibody-downregulation (antibody-suppressor) by CXCR5+CD8+ T cell subsets. CXCR5+CD8+ T cell molecular phenotypes are associated with CD8-mediated effector functions including distinct subsets that regulate antibody responses. Co-inhibitory molecule PD-1, among others, distinguish CXCR5+CD8+ T cell subsets. We also provide the first in-depth review of human CXCR5+CD8+ T cells in the context of clinical outcomes and discuss the potential utility of monitoring the quantity of peripheral blood or tissue infiltrating CXCR5+CD8+ T cells as a prognostic tool in multiple disease states.Entities:
Keywords: Antibody; CXCR5+CD8+T cells
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Year: 2021 PMID: 34602651 PMCID: PMC8486376 DOI: 10.4049/jimmunol.2100082
Source DB: PubMed Journal: J Immunol ISSN: 0022-1767 Impact factor: 5.426