A specific binding member that binds human ED-B, wherein the specific binding member is labelled with an isotope selected from the group consisting of
76
Br,
77
Br,
123
I,
124
I,
131
I and
211
At and comprises an antigen-binding site that comprises an antibody VH domain and an antibody VL domain, wherein the antibody VH domain is selected from the group consisting of the L19 VH domain, and a VH domain comprising a VH CDR1, a VH CDR2 and a VH CDR3, wherein the VH CDR3 is the L19 VH CDR3 of SEQ ID NO. 3, the VH CDR1 is optionally L19 VH CDR1 of SEQ ID NO. 1, and the VH CDR2 is optionally L19 VH CDR2 of SEQ ID NO. 2; and wherein the antibody VL domain is optionally selected from the group consisting of the L19 VL domain, and a VL domain comprising a VL CDR1, a VL CDR2 and a VL CDR3, wherein the VL CDR3 is the L19 VL CDR3 of SEQ ID NO. 6, the VL CDR1 is optionally L19 VL CDR1 of SEQ ID NO. 4, and the VL CDR2 is optionally L19 VL CDR2 of SEQ ID NO. 5; the L19 VH domain and L19 VL domain sequences being disclosed in Pini et al. (1998)
J. Biol. Chem
. 273: 21769-21776; wherein the specific binding member comprises a mini-immunoglobulin comprising said antibody VH domain and antibody VL domain fused to ε
S2
-CH4 and dimerized or comprises a whole IgG1 antibody molecule; also methods and uses employing such a specific binding member.
一种特定的结合成员,结合人类ED-B,其中该特定的结合成员标记有从76Br,77Br,123I,124I,131I和211At组成的同位素,包括一个抗原结合位点,该位点包括一个
抗体VH域和一个
抗体VL域,其中
抗体VH域选自L19 VH域和包括VH CDR1、VH CDR2和VH CDR3的VH域,其中VH CDR3是
SEQ ID NO. 3的L19 VH CDR3,VH CDR1是可选的
SEQ ID NO. 1的L19 VH CDR1,VH CDR2是可选的
SEQ ID NO. 2的L19 VH CDR2;其中
抗体VL域可选自L19 VL域和包括VL CDR1、VL CDR2和VL CDR3的VL域,其中VL CDR3是
SEQ ID NO. 6的L19 VL CDR3,VL CDR1是可选的
SEQ ID NO. 4的L19 VL CDR1,VL CDR2是可选的
SEQ ID NO. 5的L19 VL CDR2;L19 VH域和L19 VL域序列披露于Pini等人的(1998)J. Biol. Chem. 273: 21769-21776中;其中该特定的结合成员包括将所述
抗体VH域和
抗体VL域融合到εS2-
CH4并二聚化的mini-免疫球蛋白或包括整个IgG1
抗体分子的
抗体分子;还包括使用该特定的结合成员的方法和用途。