An antibody or antigen-binding portion thereof which binds to PSMA and comprises a heavy chain variable domain comprising the sequence given in SEQ ID NO:33, wherein SEQ ID NO:33 is: EVQLVQSGX9E X11KKPGASVKV SCKX24SGYTFT EYTIHWVX38QA X41 GKGLEWIGN INPNX55GGTTY NOKFEDRX68TX70 TVDKSTSTAY MELSSLRSED TAVYYCAAGW NFDYWGOGTT VTVSS wherein: X9 is A or P X11 is V or L X24 is A or T X38 is R or K X41 is P or H X55 is N or Q X68 is V or A; and X70 is I or L whereby the heavy chain variable domain comprises up to 3 amino acid sequence modification(s) between positions 1-30, 36-49, 67-98 and 105-115 of SEQ ID NO: 33. The invention also provides compounds that include the antibody or antigen-binding portion thereof, such as conjugates, and their use in the treatment or diagnosis of diseases, in particular cancers, particularly prostate cancer.
一种
抗体或其抗原结合部分,该
抗体或其抗原结合部分与 PSMA 结合并包含一个重链可变结构域,该结构域包含
SEQ ID NO:33 中给出的序列,其中
SEQ ID NO:33 为:EVQLVQSGX9E X11KK
PGASVKV SCKX24SGYTFT EYTIHWVX38QA X41 GKGLEWIGN IN
PNX55GG
TTY NOKFEDRX68TX70 TVDKSTSTAY MELSSLR
SED TAVYY
CAAGW NFDYWGOG
TT VTVSS 其中:X9 是 A 或 P X11 是 V 或 L X24 是 A 或 T X38 是 R 或 K X41 是 P 或 H X55 是 N 或 Q X68 是 V 或 A;以及 X70 是 I 或 L 其中重链可变结构域包括
SEQ ID NO: 33 的 1-30、36-49、67-98 和 105-115 位之间的多达 3 个
氨基酸序列修饰。本发明还提供了包括其
抗体或抗原结合部分的化合物,如共轭物,以及它们在治疗或诊断疾病,特别是癌症,尤其是前列腺癌中的用途。