Anti-IGF1R/CD221 Antibody is a highly specific monoclonal antibody targeting the Type I Insulin-like Growth Factor Receptor (IGF-1R/CD221). By binding to the extracellular domain of IGF-1R, this antibody effectively blocks the interaction with its ligands IGF-1 and IGF-2, thereby inhibiting the activation of downstream PI3K/Akt and MAPK signaling pathways. It is a vital tool for researching tumor cell growth inhibition, apoptosis induction, and transmembrane signaling mechanisms.