CD50 Proteins, Antibodies, cDNA Clones, ELISA Kits Research Reagents

ICAM3 (Intercellular Adhesion Molecule 3, also known as CD50; CDW50; ICAM-R), located on 19p13.2, is a Protein Coding gene. The gene produces a 59541 Da protein composed of 547 amino acids. ICAM3 is a member of the intercellular adhesion molecule (ICAM) family. ICAM3 is closely related to ICAM1, consists of 5 immunoglobulin domains, and binds LFA1 through its 2 N-terminal domains. ICAM3 functions not only as an adhesion molecule but also as a potent signaling molecule. Diseases such as Tick-Borne Encephalitis and Severe Acute Respiratory Syndrome are associated with ICAM3.

CD50 Protein (2)

    CD50 Antibody (11)

      CD50 ELISA Kit & Match Antibody ELISA Pair Set (1)

      CD50 cDNA Clone (12)

      CD50 qPCR Primer (1)

      CD50 Lysate (2)

        CD50 Background

        The protein ICAM-3, also known as CD50, is a member of the intercellular adhesion molecule (ICAM) family consisting of three members. It is a DC-SIGN ligand that is constitutively expressed on resting leukocytes and is thus an important molecule for the first immune response. ICAM-3 comprises five immunoglobulin-like domains and binds LFA-1 through its two N-terminal domains. It functions not only as an adhesion molecule but also as a potent signaling molecule. ICAM-3 binds to LFA-1 on antigen-presenting cells (APC) stabilizing the T cell-APC interaction, facilitating signaling through the CD3/TCR complex. However, recent evidence using cultured and transformed T cells suggests ICAM-3 may also function in signaling. It has been reported that the CD50 molecule can play a role in developing functionally mature T lymphocytes and its expression increases during the maturation process of T lymphocytes. Also, the interactions of ICAM-3 and LFA-1 facilitate HIV-1- induced virological synapse formation between T cells. ICAM-3 is associated with an increase in cellular radio-resistance and cancer cell proliferation. It could be considered as a candidate for anti-cancer drug development and as a cancer diagnostic marker.

        CD50 References

        • Berney SM, et al. (1999) ICAM-3 (CD50) cross-linking augments signaling in CD3-activated peripheral human T lymphocytes. J Leukoc Biol. 65(6): 867-74.
        • van Buul JD, et al. (2004) ICAM-3 activation modulates cell-cell contacts of human bone marrow endothelial cells. J Vasc Res. 41(1): 28-37.
        • Sugino H. (2005) ICAM-3, a ligand for DC-SIGN, was duplicated from ICAM-1 in mammalian evolution, but was lost in the rodent genome. FEBS Lett. 579(13): 2901-6.
        • Park JK, et al. (2010) ICAM-3 enhances the migratory and invasive potential of human non-small cell lung cancer cells by inducing MMP-2 and MMP-9 via Akt and CREB. Int J Oncol. 36(1): 181-92.

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