NCIt synonyms : Follicular B Helper T Cell; Tfh; T Follicular Helper Cell;
NCIt related terms : CD4 CD45RA- CXCR5 Tfh Cells;
NCIt definition : A subtype of antigen-experienced CD4 T cells that are primarily found within B cell
follicles near the periphery of secondary lymphoid organs and are involved in the
formation and maintenance of germinal centers. These cells express CXCR5 and CD40L
and secrete IL-21 and IL-4.;