IL6 and infection: Regarding IL-6, a cytokine that is not only involved in inflammation and infection responses, but also in the regulation of metabolic, regenerative, and neural processes (Scheller et al., 2011, p. 6), significant increases in IL-6 were also observed with pAM-MSCCM and AT-MSCCM, but not with AM-MSCCM or pAT-MSCCM group.