The present invention is directed toward a neutralizing monoclonal antibody to Macrophage Stimulating Protein (MSP), a pharmaceutical composition comprising same, and methods of treatment comprising administering such a pharmaceutical composition to a patient.La présente invention concerne un anticorps monoclonal neutralisant contre la protéine stimulant les macrophages (MSP), une composition pharmaceutique le contenant et des procédés de traitement comprenant ladministration dune telle composition pharmaceutique à un patient.