The MECA-367 antibody reacts with mucosal vascular addressin MAdCAM-1. In the fetus and neonate, MAdCAM-1 is the predominant vascular addressin on the high endothelial venules (HEV) of peripheral lymph nodes. In adult mice, MAdCAM-1 is preferentially expressed in mucosal lymphoid tissues and lamina propria, it is also expressed on sinus-lining cells in the spleen. MAdCAM-1 expression is upregulated on the HEV of peripheral lymph nodes in adult NOD mice4 and is involved in the development of diabetes and insulitis. Furthermore, there is evidence that IFN-γ can induce MAdCAM-1 expression in non-mucosal sites in adult mice. MAdCAM-1 is a predominant ligand for integrin α4β7, a lymphocyte mucosal homing receptor, and a facultative ligand for CD62L (L-selectin). MECA-367 mAb binds to the first domain of MAdCAM-1 and blocks MAdCAM-1-dependent binding in vitro and lymphocyte homing to Peyer's patch HEV in vivo. Source of the immunogen was endothelial cells from BALB/c mouse mesenteric and peripheral lymph nodes. Immunohistochemical staining of mouse MadCAM-1: Frozen sections of normal mouse small intestine were reacted with the anti-MadCAM-1 antibody. Cells of the lamina propria and the mucosal lymphoid tissue expressing MadCAM-1 can be identified by the brown labeling of their cell membranes. Amplification 20X.
BD Pharmingen™ Purified Rat Anti-Mouse MAdCAM-1 - Purified - Clone MECA-367 - Isotype Rat IgG2a, κ - Reactivity Ms - 1 mL
Aufreinigung
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
Immunogen
Mouse endothelial cells from BALB/c mouse mesenteric and peripheral lymph nodes.
Briskin, McEvoy, Butcher: "MAdCAM-1 has homology to immunoglobulin and mucin-like adhesion receptors and to IgA1." in: Nature, Vol. 363, Issue 6428, pp. 461-4, (1993) (PubMed).
Streeter, Berg, Rouse, Bargatze, Butcher: "A tissue-specific endothelial cell molecule involved in lymphocyte homing." in: Nature, Vol. 331, Issue 6151, pp. 41-6, (1988) (PubMed).