Osteoclast stimulating factor 1 (OSTF1)

Osteoclast stimulating factor 1 is a protein produced by the OSTF1 gene, located on chromosome 9. It promotes bone resorption and influences osteoclast formation through intracellular signaling, cytoskeletal reorganization, and protein-protein interactions. OSTF1 contains an SH3 domain and ankyrin repeats, and it is found in the cytosol, nucleus, and Golgi apparatus. OSTF1 interacts with several proteins, including c-Src, Cbl, myosin 1E, and SMN1/2, influencing bone development, cell motility, chromatin remodeling, and RNA splicing. Mutations or deletions of OSTF1 are associated with a spectrum of bone and retinal diseases, as well as developmental syndromes. There are currently no approved drugs that specifically target OSTF1. Interventions affecting OSTF1 could have substantial effects on bone density and developmental outcomes.

Other names

OSFSH3P2bA235O14.1

Not applicable; no drugs explicitly target OSTF1 per current literature. Its role is intracellular modulation of bone resorption and signaling rather than being a drug target itself