Patent ID: 7696326

Claim:
A method for obtaining antibodies directed against a carbohydrate moiety (B) contained in a carbohydrate peptide conjugate, comprising: a) administering to a human or an animal body a composition comprising a carbohydrate peptide conjugate having a carbohydrate content ranging from 33% (w/w) to 90% (w/w), said conjugate being selected from the group of conjugates of formulae (a) to (f) below: wherein: K is a lysyl residue, T is a CD4 + T cell epitope, and B and Tn is a Tn antigen selected from the group consisting of α-Gal-Nac-Ser, α-Gal-Nac-Thr, β-Gal-( 1-3)-α-Gal-Nac-Ser, β-Gal(1-3)α-Gal-Nac-Thr(α-Gal-Nac-Ser/Thr) 2 , (α-Gal-Nac-Ser/Thr) 3 and (α-Gal-Nac-Ser/Thr) 6 ; and b) collecting the antibodies directed against the said carbohydrate moiety (B) from a serum obtained from said human or animal body.