“…MSCs were first harvested from the bone marrow by Friedenstein in 1976 [29,31,32], but now their presence is well established in virtually all postnatal tissues [5,[31][32][33][34], being involved in the tissue growth and homeostasis [31]. They have since been isolated from different adult tissues [30-32, 35, 36], such as fat, bone marrow, bone, cartilage [6], periosteum [32], nervous tissues, tendon, ligament, epithelium, SM, lung, peripheral blood, skeletal muscle, and nonadult tissues, such as amniotic fluid, placenta, and umbilical cord blood and stroma [29].…”