I am having problem of mouse bone marrow stromal cells primary culture. First 2-3 days I see cells very healthy but then slowly hazzy and dying. I use alpha MEM media with 10% FBS and 1x glutamine and 1x antibiotics. I even tried if there is contamination in media or during isolation of bone maarow, but could not find that. So, please give me best idea for mouse BMSCs culture.