The present invention relates to the field of prognosis and/or diagnosis of a proliferative disease in a patient. More particularly, the invention relates to novel antibodies capable of binding specifically to the human cMet receptor, as well as the amino acid and nucleic acid sequences coding for these antibodies. The invention likewise comprises the use of said antibodies, and corresponding process, for detecting and diagnosing pathological hyperproliferative oncogenic disorders associated with expression of cMet. In certain embodiments, the disorders are oncogenic disorders associated with increased expression of cMet polypeptide relative to normal or any other pathology connected with the over expression of c Met. The invention finally comprises products and/or compositions or kits comprising at least such antibodies for the prognosis or diagnostic of certain cancers.
