HGF and ulcerative colitis: Li et al. [82] revealed that dental pulp stem cells overexpressing HGF (HGF-DPSCs) decreased intestinal mucosa damage in part through the transdifferentiating into an intestinal stem cell (ISC)-like cells, stimulating ISC-like cell growth, inhibition of the intense immunological responses, and plummeting oxidative stress in DSS-induced ulcerative colitis.