Recombinant human FGF8 protein

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The FGF8 protein also known as fibroblast growth factor 8 plays a mechanical role in cell signaling and development. The FGF8 gene encodes two main isoforms: FGF8a and FGF8b each with different biological activities. FGF8 has a molecular mass of approximately 22-24 kDa. It expresses in developing tissues particularly in the embryo during early stages of vertebrate development. FGF8 interacts with fibroblast growth factor receptors (FGFRs) to initiate a cascade of signaling events leading to cellular responses.

Biological function summary

The FGF8 protein influences the regulation of cell division growth and differentiation particularly in embryonic development. FGF8 an integral part of several signaling complexes activates pathways that guide mesoderm and neural plate induction. Its expression is essential for limb and brain development providing necessary signaling cues required for proper patterning and morphogenetic processes.

Pathways

The FGF8 protein plays a central role in the MAPK/ERK signaling and PI3K/AKT pathways important mechanisms that govern cellular proliferation and survival. These pathways involve several proteins such as FGFR1 and FGFR2 which interact with FGF8 to mediate its effects. Through these pathways FGF8 coordinates with other members of the fibroblast growth factor family to regulate cellular functions in a concerted manner.

The FGF8 protein associates with various congenital malformations specifically conditions like Kallmann syndrome and certain craniofacial dysplasias. Mutations or dysregulation in FGF8 can disrupt normal signaling processes leading to abnormalities in development. The protein closely interacts with other growth factors and receptors such as FGFR1 which when altered might contribute to the pathogenesis of these disorders by affecting the signaling pathways they share with FGF8.