Mediating K<sup>+</sup>/H<sup>+</sup> Transport on Organelle Membranes to Selectively Eradicate Cancer Stem Cells with a Small Molecule
作者:Fang-Fang Shen、Sheng-Yao Dai、Nai-Kei Wong、Shan Deng、Alice Sze-Tsai Wong、Dan Yang
DOI:10.1021/jacs.0c02134
日期:2020.6.17
Molecules that are capable of disrupting cellular ion homeostasis offer unique opportunities to treat cancer. However, previously reported synthetic ion transporters showed limited value as promiscuous ionic disruption caused toxicity to both healthy cells and cancer cells indiscriminately. Here we report a simple yet efficient synthetic K+ transporter that takes advantage of the endogenous subcellular
能够破坏细胞离子稳态的分子为治疗癌症提供了独特的机会。然而,先前报道的合成离子转运蛋白显示出有限的价值,因为混杂的离子破坏会不加选择地对健康细胞和癌细胞造成毒性。在这里,我们报告了一种简单而有效的合成 K+ 转运蛋白,它利用内源性亚细胞 pH 梯度和膜电位来位点选择性地介导活细胞线粒体和溶酶体膜上的 K+/H+ 转运。随后的线粒体和溶酶体损伤通过细胞凋亡诱导和自噬抑制以显着的选择性(高达 47 倍)增强了对化学抗性卵巢癌干细胞 (CSC) 的细胞毒性。根除 CSCs 减弱了小鼠的肿瘤形成。