transforming growth factor-beta ( tgf beta ) , a polypeptide that controls growth and differentiation in many cell types and has recently been found in abundant amounts in bone , was examined for its effects on cells with the osteoblast phenotype using the clonal osteoblastic osteosarcoma cell line ros 17/2.8 .
C0262950
bone
C1704328
osteoblastic osteosarcoma