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Multiparameter flow cytometric analysis of TIM-3 (CD366) expression on Human peripheral blood leucocyte populations. Human whole blood was stained with PE Mouse Anti-Human CD56 (NCAM-1) antibody (Cat. No. 555516; Lower Plots) and with either BD Horizon™ R718 Mouse IgG1, κ Isotype Control (Cat. No. 566928; Left Plots) or BD Horizon™ R718 Mouse Anti-Human TIM-3 (CD366) antibody (Cat. No. 567557/567558; Right Plots). The erythrocytes were lysed with BD FACS™ Lysing Solution (Cat. No. 349202). Flow cytometry and data analysis were performed using a BD LSRFortessa™ X-20 Cell Analyzer System and FlowJo™ software. Upper Plots: The bivariate pseudocolor density plot showing TIM-3 (CD366) expression (or Ig Isotype control staining) versus side-light scatter (SSC-A) signals was derived from gated events with the forward and side-light scatter characteristics of intact leucocyte populations. Lower Plots: The bivariate pseudocolor density plot showing the correlated expression of TIM-3 (CD366) [or Ig Isotype control staining] versus CD56 (NCAM-1) was derived from gated events with the forward and side-light scatter characteristics of intact lymphocytes.
BD Horizon™ R718 Mouse Anti-Human TIM-3 (CD366)
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The 7D3 monoclonal antibody specifically binds to T cell immunoglobulin mucin 3 (TIM-3) which is also known as, CD366, or T-cell immunoglobulin and mucin domain-containing protein 3 (TIMD-3/TIMD3). CD366 is encoded by the HAVCR2 gene (Hepatitis A virus cellular receptor 2). CD366 is a type I transmembrane glycoprotein and belongs to the human TIM family (along with TIM-1 and TIM-4) within the immunoglobulin superfamily. CD366 is expressed on Th1, Tc1, Th17, Treg, NK T, and NK cells. CD366 is also expressed on dendritic cells, mast cells, monocytes, and macrophages. It is not expressed by Th2 and B cells. CD366 helps maintain peripheral immune tolerance and homeostasis. CD366 regulates macrophage activation and is a negative regulator of Th1 cell function. Crosslinking of cell surface CD366 by binding to Galectin-9 and/or phosphatidylserine appears to play an important role in either positively or negatively regulating leucocyte functions, such as cytokine production or the phagocytosis of apoptotic cells. CD366 may also be useful as an AML stem cell surface marker because it appears to be more highly expressed by AML leukemia stem cells than by normal bone marrow hematopoietic stem cells.
Development References (8)
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Arce Vargas F, Furness AJS, Litchfield K, et al. Fc Effector Function Contributes to the Activity of Human Anti-CTLA-4 Antibodies.. Cancer Cell. 2018; 33(4):649-663.e4. (Clone-specific). View Reference
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Freeman GJ, Casasnovas JM, Umetsu DT, DeKruyff RH. TIM genes: a family of cell surface phosphatidylserine receptors that regulate innate and adaptive immunity.. Immunol Rev. 2010; 235(1):172-89. (Biology). View Reference
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Jan M, Chao MP, Cha AC, et al. Prospective separation of normal and leukemic stem cells based on differential expression of TIM3, a human acute myeloid leukemia stem cell marker. Proc Natl Acad Sci U S A. 2011; 108(12):5009-5014. (Biology). View Reference
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Khademi M, Illes Z, Gielen AW, et al. T Cell Ig- and mucin-domain-containing molecule-3 (TIM-3) and TIM-1 molecules are differentially expressed on human Th1 and Th2 cells and in cerebrospinal fluid-derived mononuclear cells in multiple sclerosis. J Immunol. 2004; 172(11):7169-7176. (Biology). View Reference
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Lee J, Su EW, Zhu C, et al. Phosphotyrosine-dependent coupling of Tim-3 to T-cell receptor signaling pathways. Mol Cell Biol. 2011; 31(19):3963-3974. (Biology). View Reference
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Ndhlovu LC, Lopez-Verges S, Barbour JD, et al. Tim-3 marks human natural killer cell maturation and suppresses cell-mediated cytotoxicity. Blood. 2012; 119(16):3734-3743. (Biology). View Reference
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Rodriguez-Manzanet R, DeKruyff R, Kuchroo VK, Umetsu DT. The costimulatory role of TIM molecules. Immunol Rev. 2009; 229(1):259-270. (Biology). View Reference
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van de Weyer PS, Muehlfeit M, Klose C, Bonventre JV, Walz G, Kuehn EW. A highly conserved tyrosine of Tim-3 is phosphorylated upon stimulation by its ligand galectin-9. Biochem Biophys Res Commun. 2006; 351(2):571-576. (Biology). View Reference
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