ZFAS1 and osteosarcoma: ZFAS1 has been reported to be involved in several cancers, including hepatocellular carcinoma (Li et al., 2015), osteosarcoma (Liu et al., 2017), breast cancer (Askarian-Amiri et al., 2011), and colorectal cancer (Zeng et al., 2018), by modulating cell proliferation and migration.