CD4⁺PD-1^hi T cells express significantly high levels of CXCR5 and IL-21 mRNA <i>ex vivo</i>.

Abstract

<p>(a) Representative dot plots showing the gating strategy and sort purity of CD4⁺PD-1^hi and CD4⁺PD-1^– T cells. b) Fold change in expression of CXCR5 and IL-21 mRNA levels in CD4⁺PD-1^hi T cells relative to CD4⁺PD-1^– T cells. mRNA expression was determined <i>ex vivo</i> in sorted cells by relative qRT-PCR.</p