Ruthenium Complexes are pH-Activated Metallo Prodrugs (pHAMPs) with Light-Triggered Selective Toxicity Toward Cancer Cells
作者:Fengrui Qu、Seungjo Park、Kristina Martinez、Jessica L. Gray、Fathima Shazna Thowfeik、John A. Lundeen、Ashley E. Kuhn、David J. Charboneau、Deidra L. Gerlach、Molly M. Lockart、James A. Law、Katherine L. Jernigan、Nicole Chambers、Matthias Zeller、Nicholas A. Piro、W. Scott Kassel、Russell H. Schmehl、Jared J. Paul、Edward J. Merino、Yonghyun Kim、Elizabeth T. Papish
DOI:10.1021/acs.inorgchem.7b01065
日期:2017.7.3
that complex 3A is the most cytotoxic complex of this series with IC50 values as low as 4 μM (with blue light) versus two breast cancer cell lines. Complex 3A is also selectively cytotoxic, with sevenfold higher toxicity toward cancerous versus normal breast cells. Phototoxicity indices with 3A were as high as 120, which shows that dark toxicity is avoided. The key difference between complex 3A and
利用癌细胞周围固有酸度的金属前药尚未开发。我们报告了由光触发和pH触发的配体解离激活的一类新型的pH活化金属前药(pHAMPs)。这些钌配合物利用了癌细胞和缺氧性实体瘤(酸性)的关键特性,可以利用这些特性来减轻化学疗法的副作用。合成了五种[(N,N)2 Ru(PL)] 2+类型的钌配合物,对其进行了全面表征,并测试了其在细胞培养中的细胞毒性(1 A:N,N = 2,2'-联吡啶(联吡啶)和光不稳定配体PL = 6,6'-二羟基联吡啶(6,6'-dhbp); 2 A:N,N = 1,10-菲咯啉(phen),PL = 6,6′-dhbp。3阿:N,N = 2,3-二氢- [1,4]二氧杂环己二烯并[2,3- ˚F ] [1,10]菲咯啉(DOP)和PL = 6,6'- DHBP; 4阿:N,N =联吡啶和PL = 4,4'-二甲基-6,6'-二dihydroxybipyridine(dmdhbp);