PSMA, Glu-ureido-Lys. The two pharmacophores were coupled through copper(I)-catalyzed azide–alkyne cycloaddition to the bis(tetrafluorophenyl) ester of the chelating agent HBED-CC via amino acid linkers made of positively charged His (H) and negatively charged Glu (E): -(HE)n- (n = 0–3). The BRLs were labeled with 68Ga, and their preliminary pharmacological properties were evaluated in vitro (competitive
开发了一系列针对前列腺特异性膜抗原(PSMA)和胃泌素释放肽受体(GRPr)的双特异性放射性
配体(BRL),它们均在前列腺癌细胞上表达。它们的设计是基于铃蟾肽(BN)类似物,H 2 -N-P
EG 2 - [ d -Tyr 6,β丙
氨酸11,氏13,NLE 14] BN(6-14),以高亲和力和特异性与GRPr结合,以及PSMA的拟肽
脲基假不可逆
抑制剂Glu-ureido-Lys。这两个药效基团通过带正电的His(H)和带负电的Glu(E)组成的
氨基酸连接基通过
铜(I)催化的
叠氮化物-
炔烃环加成反应与
螯合剂HBED-CC的双(
四氟苯基)酯偶联: -(HE)n-(n = 0-3)。用68 Ga标记BRL ,并在体外(竞争性和时间动力学结合测定)对前列腺癌(PC-3,LNCaP)和大鼠胰腺(AR42J)
细胞系的体内初步药理性质进行评估通过
生物分布和小动物PET成像研究对正常小鼠和荷瘤小鼠进行了研究。为所有BRL确定的IC