CD4 and metabolic dysfunction-associated steatotic liver disease: MSC transplantation decreased high‐fat diet‐induced weight gain, steatosis, lobular inflammation and liver fibrogenesis in mice with NAFLD via inhibition of splenic CD4+IFN-γ+ and CD4+IL-6+ T lymphocyte differentiation, while it had no effect on the activity of CD4+IL-17+ T lymphocytes 83.