MALAT1 and osteosarcoma: The previous studies showing MALAT1 as a ceRNA for miR-205 in cells including renal carcinoma [14], osteosarcoma [15], and neuronal cells [16] inspired us to examine whether it may function similar in MSCs, since we have shown that depletion of miR-205-5p in human MSCs significantly improved its therapeutic effect on DF [11].