OIP5 and osteosarcoma: The lncRNA OIP5-AS1 is involved in the pathogenesis of a variety of diseases, including colon cancer (Wang Y. et al., 2021), prostate cancer (Zhang Y. et al., 2021), papillary thyroid cancer (Zhang X. et al., 2021), and osteosarcoma (Li et al., 2021), as well as heart failure (Zhuang et al., 2021).