Antibodies against human and canine IL-13RA2

A method of detecting a cancer in a subject in need thereof, said method comprising:

• administering to said subject an antibody that specifically binds an epitope within amino acids spanning the extracellular portion of human IL-13RA2, wherein said antibody is coupled to a detectable group, in an amount effective to detect said antibody;
• and
• detecting said detectable group, to thereby detect the cancer in the subject,
• wherein said epitope is within amino acids of SEQ ID NO:
• 1 (Peptide 1);
• SEQ ID NO:
• 2 (Peptide 2);
• or SEQ ID NO:
• 3 (Peptide 3),
• wherein said antibody comprises a variable light chain amino acid sequence of SEQ ID NO:8 or at least 95% identity thereto, and a variable heavy chain amino acid sequence of SEQ ID NO:10 or at least 95% identity thereto, and
• wherein said antibody specifically binds to both human and canine IL-13RA2.