Additional file 1 of Human bone marrow-derived mesenchymal stromal cells cultured in serum-free media demonstrate enhanced antifibrotic abilities via prolonged survival and robust regulatory T cell induction in murine bleomycin-induced pulmonary fibrosis

Additional file 1: Representative flow cytometry analysis related to the defined positive and negative MSC surface markers on MSCs cultured in DMEM with 10% FBS (S-MSC) or in serum-free STK2 medium (SF-MSC).