An antibody, or antigen binding fragment thereof, said antibody or fragment thereof specifically binding the peptide having the amino acid sequence of SEQ ID No. 29, said antibody comprising: a) - a heavy chain comprising the following three CDRs, respectively CDR-H1, CDR-H2 and CDR-H3, wherein: CDR-H1 comprises the sequence SEQ ID No. 37; and CDR-H2 comprises the sequence SEQ ID No. 38; and CDR-H3 comprises the sequence SEQ ID No. 39; and - a light chain comprising the following three CDRs, respectively CDR-L1, CDR-L2 and CDR-L3, wherein: CDR-L1 comprises the sequence SEQ ID No. 34; and CDR-L2 comprises the sequence SEQ ID No. 35; and CDR-L3 comprises the sequence SEQ ID No. 36; or b), a heavy chain comprising the following three CDRs, respectively CDR-H1', CDR-H2' and CDR-H3', wherein: CDR-H1' comprises the sequence SEQ ID No. 40; and CDR-H2' comprises the sequence SEQ ID No. 41; and CDR-H3' comprises the sequence SEQ ID No. 39; and a light chain comprising the following three CDRs, respectively CDR-L1', CDR-L2' and CDR-L3', wherein: CDR-L1' comprises the sequence SEQ ID No. 42; and CDR-L2' comprises the sequence SEQ ID No. 35; and CDR-L3' comprises the sequence SEQ ID No. 36. a) - a heavy chain comprising the following three CDRs, respectively CDR-H1, CDR-H2 and CDR-H3, wherein: CDR-H1 comprises the sequence SEQ ID No. 37; and CDR-H2 comprises the sequence SEQ ID No. 38; and CDR-H3 comprises the sequence SEQ ID No. 39; and - a light chain comprising the following three CDRs, respectively CDR-L1, CDR-L2 and CDR-L3, wherein: CDR-L1 comprises the sequence SEQ ID No. 34; and CDR-L2 comprises the sequence SEQ ID No. 35; and CDR-L3 comprises the sequence SEQ ID No. 36; - a heavy chain comprising the following three CDRs, respectively CDR-H1, CDR-H2 and CDR-H3, wherein: CDR-H1 comprises the sequence SEQ ID No. 37; and CDR-H2 comprises the sequence SEQ ID No. 38; and CDR-H3 comprises the sequence SEQ ID No. 39; and CDR-H1 comprises the sequence SEQ ID No. 37; and CDR-H2 comprises the sequence SEQ ID No. 38; and CDR-H3 comprises the sequence SEQ ID No. 39; and - a light chain comprising the following three CDRs, respectively CDR-L1, CDR-L2 and CDR-L3, wherein: CDR-L1 comprises the sequence SEQ ID No. 34; and CDR-L2 comprises the sequence SEQ ID No. 35; and CDR-L3 comprises the sequence SEQ ID No. 36; CDR-L1 comprises the sequence SEQ ID No. 34; and CDR-L2 comprises the sequence SEQ ID No. 35; and CDR-L3 comprises the sequence SEQ ID No. 36; or b), a heavy chain comprising the following three CDRs, respectively CDR-H1', CDR-H2' and CDR-H3', wherein: CDR-H1' comprises the sequence SEQ ID No. 40; and CDR-H2' comprises the sequence SEQ ID No. 41; and CDR-H3' comprises the sequence SEQ ID No. 39; and a light chain comprising the following three CDRs, respectively CDR-L1', CDR-L2' and CDR-L3', wherein: CDR-L1' comprises the sequence SEQ ID No. 42; and CDR-L2' comprises the sequence SEQ ID No. 35; and CDR-L3' comprises the sequence SEQ ID No. 36. CDR-H1' comprises the sequence SEQ ID No. 40; and CDR-H2' comprises the sequence SEQ ID No. 41; and CDR-H3' comprises the sequence SEQ ID No. 39; and CDR-L1' comprises the sequence SEQ ID No. 42; and CDR-L2' comprises the sequence SEQ ID No. 35; and CDR-L3' comprises the sequence SEQ ID No. 36.