First Author | Walter UM | Year | 1997 |
Journal | Hybridoma | Volume | 16 |
Issue | 3 | Pages | 249-57 |
PubMed ID | 9219035 | Mgi Jnum | J:41374 |
Mgi Id | MGI:893818 | Doi | 10.1089/hyb.1997.16.249 |
Citation | Walter UM, et al. (1997) Characterization of a novel adhesion function blocking monoclonal antibody to rat/mouse P-selectin generated in the P-selectin-deficient mouse. Hybridoma 16(3):249-57 |
abstractText | P-selectin is an important adhesion molecule involved in leukocyte migration. However, to date, no monoclonal antibodies (MAb) generated against rat P-selectin have been identified which block P-selectin mediated leukocyte adhesion. Most studies in the rat have utilized crossreacting antibodies generated against P-selectin in higher species. In a P-selectin deficient mouse we generated an anti-rat/mouse P-selectin MAb, designated RMP-1, by immunization with activated rat platelets. This IgG2a MAb immunoprecipitates a 140 kDa protein under reducing conditions from rat platelet lysate. By ELISA and immunofluorescence flow cytometry, MAb RMP-1 reacts with thrombin-activated but not unactivated rat platelets. In addition, by ELISA MAb RMP-1 binds to activated mouse platelets and recombinant rat and mouse P-selectin. MAb RMP-1 inhibited adhesion of HL-60 myeloid cells to immobilized mouse P-selectin by 97% and to activated rat and mouse platelets by 100% under static conditions, confirming the adhesion function blocking activity of MAb RMP-1. This novel MAb should be useful for studying P-selectin function in vitro and in vivo in both rat and mouse inflammation models. |