The monoclonal antibody 6C7.1 recognizes mouse vascular cell adhesion molecule (VCAM-1) (~ 81 kDa), a member of a subclass of the immunoglobulin superfamily (IgSF). IgSF members are ligands for integrins. Cell adhesion molecules (CAMs) have important roles in the immune response, immune surveillance and cell-cell recognition, especially in leukocyte-endothelial cell adhesion. CAMs on the surface of leukocytes and endothelial cells are actively involved in the recruitment of specific leukocyte subsets into different tissues. VCAM-1 is expressed on inflamed vascular endothelium, as well as on macrophage-like and dendritic cell types in both normal and inflamed tissue. Cell adhesion molecules, like VCAM-1, are upregulated on cerebral vessels during inflammatory conditions of the central nervous system such as experimental autoimmune encephalomyelitis (EAE), a model system for multiple sclerosis. Administration of monoclonal antibody 6C7.1 has been shown to inhibit or diminish clinical or pathological signs of EAE. VCAM-1 is a receptor for encephalomyocarditis virus on murine vascular endothelial cells. Expression of VCAM-1 on vascular endothelial cells is induced by TNF-alpha, IL-1, IFN-gamma or endotoxin. VCAM-1 is a ligand for the integrins alpha4beta1 (VLA-4) and alpha4beta7 (LPAM-1). These integrins are constitutively expressed by thymocytes, lymphocytes and monocytes. VCAM-1/VLA-4 interaction may play a pathophysiological role in immune responses and as well as in leukocyte emigration to sites of inflammation.
Flow cytometry, Frozen sections, Functional studies, Immuno fluorescence, Immuno precipitation
For immunofluorescence and flow cytometry, dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50. For functional studies, in vitro dilutions have to be optimized in user's experimental setting.