Peritoneal memory CD4⁺ T cells produce more cytokines than Sp derived cells.

CXCR3⁺ CD62L^low CD44^high, CXCR3⁻ CD62L^low CD44^high and CXCR3⁻ CD62L^high CD44^low CD4⁺ T cells were sorted from Sp or PerC of C57BL/6 naïve (specific pathogen free) mice. Then, cells were re-stimulated with ionomycin and PMA and the expression of (A) IFNγ, (B) IL-4 and (C) IL-17 was measured by ELISA. Similar results were obtained in 2 independent experiments.