Tri-phenyl-phosphonium (TPP) is a non-toxic chemical moiety that functionally behaves as a mitochondrial targeting signaling in living cells. TPP-related compounds may be utilized to target mitochondria in cancer stem cells (CSCs), and may be used for treating and/or preventing tumor recurrence, metastasis, drug resistance, and/or radiotherapy resistance, as well as for anti-cancer therapies. Various TPP-related compounds validated for oxygen consumption inhibition (OCR), were non-toxic, and had little or no effect on ATP production in normal human fibroblasts. Yet these compounds selectively target adherent “bulk” cancer cells. These compounds also inhibit the propagation of CSCs in suspension. TPP-related compounds provide a novel chemical strategy for effectively targeting both i) “bulk” cancer cells and ii) CSCs, while specifically minimizing or avoiding off-target side-effects in normal cells, among other useful therapies.
三苯基膦(
TPP)是一种无毒
化学分子,在活细胞中具有线粒体靶向信号的功能。
TPP 相关化合物可用于靶向癌症干细胞(CSCs)中的线粒体,并可用于治疗和/或预防肿瘤复发、转移、耐药性和/或放疗耐药性以及抗癌疗法。经过验证,各种
TPP 相关化合物都具有耗氧抑制(OCR)作用,而且无毒,对正常人成纤维细胞的
ATP 生成几乎没有影响。然而,这些化合物选择性地针对粘附的 "大块 "癌细胞。这些化合物还能抑制悬浮液中癌细胞的繁殖。
TPP 相关化合物提供了一种新型
化学策略,可有效靶向 i) "大块 "癌细胞和 ii) CSCs,同时有针对性地减少或避免对正常细胞的脱靶副作用,以及其他有用的疗法。