FOXC2-AS1: FOXC2-AS1 is a long non-coding RNA (lncRNA) that is located in close genomic proximity to the FOXC2 gene [PMC7658007]. FOXC2 has been shown to induce adipocyte mitochondriogenesis [57] and activate the signal transducer and activator of transcription 3-PRDM16 signal [58]. This proximity and functional effect led researchers to investigate the regulatory relationship between FOXC2-AS1 and FOXC2 [PMC7658007]. In a subsequent study, the role of FOXC2-AS1 in regulating phenotypic transition, proliferation, and migration of human great saphenous vein smooth muscle cells (SV-SMCs) was explored [PMC6894326]. It was found that FOXC2-AS1 is involved in upregulating FOXC2 through the formation of a stable RNA duplex [PMC8381522]. This upregulation also leads to an increase in ABCB1 expression in DOX-resistant osteosarcoma cells [PMC8381522]. These findings suggest that FOXC2-AS1 plays a role in regulating various cellular processes, including adipocyte mitochondriogenesis, phenotypic transition, proliferation, migration, and drug resistance. Further research is needed to fully understand the mechanisms by which FOXC2-AS1 exerts its regulatory effects on these processes [PMC7658007] [57] [58] [PMC6894326] [PMC8381522].