LIFR and osteosarcoma: For this, they sought to identify dysregulated lncRNAs and miRNAs in osteosarcoma cells cocultured with macrophage-derived exosomes through high-throughput microarray analysis and found that LIFR-AS1 was highly expressed in osteosarcoma tissues and cells, in which LIFR-AS1 might play as an oncogenic role in osteosarcoma.