FGFR1, or Fibroblast Growth Factor Receptor 1, is a protein that plays a crucial role in cell growth, development, and tissue repair. It is part of a family of receptors that bind to fibroblast growth factors, which are important for various biological processes, including angiogenesis and embryonic development. Mutations or dysregulation of FGFR1 can lead to various health issues, including certain types of cancer and developmental disorders. Research into FGFR1 is ongoing, as understanding its functions and mechanisms can help in developing targeted therapies for related diseases.