Neutron activation of In(<scp>iii</scp>) complexes with thiosemicarbazones leads to the production of potential radiopharmaceuticals for the treatment of breast cancer
作者:Alexandre A. Oliveira、Lucas L. Franco、Raquel G. dos Santos、Gabriele M. C. Perdigão、Jeferson G. da Silva、Elaine M. Souza-Fagundes、Heloisa Beraldo
DOI:10.1039/c7nj01547j
日期:——
radioactive complexes (*1–*4) proved to be 102 to 104 times more potent than the non-radioactive analogues (1–4). For the non-radioactive In(III) complexes (1–4) the selectivity indexes (SI), defined as IC50MRC-5/IC50MCF-7, were SI = 0.07–0.36, while high values of SI were found for the radioactive In(III) analogues (*1–*4), SI = 46–4716, indicating that irradiation represented an interesting strategy for
使用N(4)-邻氯苯酚制得In(III)配合物[In(2Ac4 o ClPh)2 ] NO 3(1)和[In(2Ac4 p FPh)2 ] NO 3 ·1.5H 2 O(2)-2-乙酰基吡啶缩氨基硫脲(H2Ac4 Ò CLPH)和ñ(4) -对氟苯基-2-乙酰基吡啶缩氨基硫脲(H2Ac4 p FPH)。配合物(1)和(2)以及先前制备的[In(2Ac4 o ClPh)Cl 2的中子活化(MeOH)](3)和[In(2Ac4 p FPh)Cl 2(MeOH)](4)形成114m In / 115m In类似物(* 1- * 4)。研究了这些化合物对MCF-7乳腺癌细胞以及对非恶性MRC-5成纤维细胞的细胞毒活性。与In(III)配伍后,复合物中针对MCF-7细胞的细胞毒性显着增加(1-4),这表明复合是提高细胞毒性作用的良好策略。非放射性和放射性In(III)盐对MCF-7细胞均无活性,但放射性复合物(*