Fig. 7From: M2 macrophages promote myofibroblast differentiation of LR-MSCs and are associated with pulmonary fibrogenesisSchematic representation for hypothetical M2 macrophage-induced myofibroblast differentiation of LR-MSCs. Bleomycin induces severe local inflammation. The recruited M2 macrophages release high levels of Wnt7a, which promotes myofibroblast differentiation of LR-MSCs and pulmonary fibrosis through activating the Wnt/β-catenin signaling pathwayBack to article page