Anti-LFA3/CD58 Antibody Picoband® Fluoro488 Conjugated

CD58, or lymphocyte function-associated antigen 3 (LFA-3), is a cell adhesion molecule expressed on Antigen Presenting Cells (APC), particularly macrophages. It binds to CD2 (LFA-2) on T cells and is important in strengthening the adhesion between the T cells and Professional Antigen Presenting Cells. This adhesion occurs as part of the transitory initial encounters between T cells and Antigen Presenting Cells before T cell activation, when T cells are roaming the lymph nodes looking at the surface of APCs for peptide:MHC complexes the T-cell receptors are reactive to. The LFA3 gene is mapped to chromosome 1p13, which is the same location as CD2.

Ligand of the T-lymphocyte CD2 glycoprotein. This interaction is important in mediating thymocyte interactions with thymic epithelial cells, antigen-independent and -dependent interactions of T-lymphocytes with target cells and antigen- presenting cells and the T-lymphocyte rosetting with erythrocytes. In addition, the LFA-3/CD2 interaction may prime response by both the CD2+ and LFA-3+ cells.

1. Barbosa, J. A., Mentzer, S. J., Kamarck, M. E., Hart, J., Biro, P. A., Strominger, J. L., Burakoff, S. J. Gene mapping and somatic cell hybrid analysis of the role of human lymphocyte function-associated antigen-3 (LFA-3) in CTL-target cell interactions. J. Immun. 136: 3085-3091, 1986. 2. Sewell, W. A., Palmer, R. W., Spurr, N. K., Sheer, D., Brown, M. H., Bell, Y., Crumpton, M. J. The human LFA-3 gene is located at the same chromosome band as the gene for its receptor CD2. Immunogenetics 28: 278-282, 1988. 3. Wang, J., Smolyar, A., Tan, K., Liu, J., Kim, M., Sun, Z. J., Wagner, G., Reinherz, E. L. Structure of a heterophilic adhesion complex between the human CD2 and CD58 (LFA-3) counterreceptors. Cell 97: 791-803, 1999.