Synthesis and biochemical evaluation of benzoylbenzophenone thiosemicarbazone analogues as potent and selective inhibitors of cathepsin L
作者:Erica N. Parker、Jiangli Song、G.D. Kishore Kumar、Samuel O. Odutola、Gustavo E. Chavarria、Amanda K. Charlton-Sevcik、Tracy E. Strecker、Ashleigh L. Barnes、Dhivya R. Sudhan、Thomas R. Wittenborn、Dietmar W. Siemann、Michael R. Horsman、David J. Chaplin、Mary Lynn Trawick、Kevin G. Pinney
DOI:10.1016/j.bmc.2015.09.036
日期:2015.11
Thiosemicarbazone analogue 32 inhibited invasion through Matrigel of MDA-MB-231 breast cancer cells by 70% at 10 μM. Thiosemicarbazone analogue 8 significantly inhibited the invasive potential of PC-3ML prostate cancer cells by 92% at 5 μM. The most active cathepsin L inhibitors from this benzoylbenzophenone thiosemicarbazone series (1, 8, and 32) displayed low cytotoxicity toward normal primary cells [in this
组织蛋白酶L在多种肿瘤中的上调及其通过降解细胞外基质促进癌细胞侵袭和迁移的能力表明,组织蛋白酶L是开发抗转移剂的有希望的生物学靶标。基于从鼓励上二苯甲酮缩氨基硫脲组织蛋白酶抑制剂,一系列14个benzoylbenzophenone缩氨基硫脲类似物的研究结果进行了设计,合成,和它们对组织蛋白酶L和B.缩氨基硫脲酶抑制剂的抑制活性3- benzoylbenzophenone缩氨基硫脲评价1,1,3-双( 4-氟苯甲酰基)苯硫代半碳酸盐8和1,3-双(2-氟苯甲酰基)-5-溴苯硫代半碳酸盐32分别以9.9 nM,14.4 nM和8.1 nM的低IC 50值显示出对组织蛋白酶L的最大效价。与组织蛋白酶B相比,所评估的苯甲酰基二苯甲酮硫半碳酰胺类似物在抑制组织蛋白酶L方面具有选择性。硫磺半碳酮类似物32在10μM浓度下可抑制基质胶对MDA-MB-231乳腺癌细胞的基质胶侵袭。硫代氨基脲类似物8在5μ