FcαRI & EGFR

This gene is a member of the immunoglobulin gene superfamily and encodes a receptor for the Fc region of IgA. The receptor is a transmembrane glycoprotein present on the surface of myeloid lineage cells such as neutrophils, monocytes, macrophages, and eosinophils, where it mediates immunologic responses to pathogens. It interacts with IgA-opsonized targets and triggers several immunologic defense processes, including phagocytosis, antibody-dependent cell-mediated cytotoxicity, and stimulation of the release of inflammatory mediators. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene.

EGFR encodes a receptor tyrosine kinase that is involved in the regulation of cell growth, survival, and differentiation. It is activated by binding to its ligands, such as epidermal growth factor (EGF), and mediates downstream signaling pathways that control cellular processes like proliferation, migration, and differentiation. EGFR is critical in normal development, wound healing, and tissue repair. However, mutations or overexpression of EGFR are associated with various cancers, including non-small cell lung cancer (NSCLC), making EGFR a target for cancer therapies, including monoclonal antibodies and tyrosine kinase inhibitors.