IL10 and inflammatory response: Li et al. demonsterated that intravenous use of MSCs in the treatment of acute pulmonary inflammation induced by H9N2 avian influenza in mice caused a significant reduction in plasma and BAL inflammatory factors (IL-1α, IL-6, TNF-α and IFN-γ) and a the corresponding increase in anti-inflammatory cytokine (IL-10), 3 days after cell therapy.