Antibodies, methods and kits for diagnosing and treating melanoma

A method of diagnosing melanoma and antibodies capable of same are disclosed. The method comprises contacting a cell of the subject with an antibody comprising an antigen recognition domain capable of binding to an MHC-I molecule being complexed with a tyrosinase peptide, wherein the antibody does not bind the MHC-I in the absence of the complexed peptide, and wherein the antibody does not bind the peptide in an absence of the MHC, under conditions which allow immunocomplex formation, wherein a presence of the immunocomplex or level thereof is indicative of the melanoma. Methods for treating melanoma and antibodies capable of same are also disclosed. Pharmaceutical compositions comprising antibodies are also disclosed.