Mouse anti-Japanese Quail Bone Marrow Cells monoclonal antibody for WB, IHC-Fr. Bone marrow (Latin: medulla ossium) is the flexible tissue found in the interior of bones. In humans, bone marrow in large bones produces new blood cells. The bone marrow stroma contain mesenchymal stem cells (MSCs), also called marrow stromal cells. These are multipotent stem cells that can differentiate into a variety of cell types. MSCs have been shown to differentiate, in vitro or in vivo, into osteoblasts, chondrocytes, myocytes, adipocytes and beta-pancreatic islets cells. MSCs can also transdifferentiate into neuronal cells. In addition, the bone marrow contains hematopoietic stem cells, which give rise to the three classes of blood cells that are found in the circulation: white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes).