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Characterization of a novel activation-specific antiplatelet monoclonal antibody
T Fukuroi1, T Kawakatsu, S Nomura
1First Department of Internal Medicine, Kansai Medical University, Osaka, Japan.
We developed a murine monoclonal antibody (KmT-50) which binds to a protein expressed on the surface of human platelets after activation. KmT-50 is an immunoglobulin G1 monoclonal antibody that recognizes a 50-kD antigen localized in intracellular organelles and the open canalicular system of unstimulated platelets. After platelets were stimulated, the antigen was secreted via the surface-connected canalicular system and exposed on the platelet membrane. KmT-50 bound not only to human platelets, but also to rabbit and monkey platelets. This new antibody may be useful for experimental studies on thrombosis and hemostasis.
We developed a murine monoclonal antibody (KmT-50) which binds to a protein expressed on the surface of human platelets after activation. KmT-50 is an immunoglobulin G1 monoclonal antibody that recognizes a 50-kD antigen localized in intracellular organelles and the open canalicular system of unstimulated platelets. After platelets were stimulated, the antigen was secreted via the surface-connected canalicular system and exposed on the platelet membrane. KmT-50 bound not only to human platelets, but also to rabbit and monkey platelets. This new antibody may be useful for experimental studies on thrombosis and hemostasis.