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    • 8. 发明申请
    • MITOCHONDRIAL DELIVERY OF 3-BROMOPYRUVATE
    • 3-BROMOPYRUVATE的MITOCHONDRIAL DELIVERY
    • WO2015138992A1
    • 2015-09-17
    • PCT/US2015/020591
    • 2015-03-13
    • UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.DHAR, ShantaMARRACHE, Sean
    • DHAR, ShantaMARRACHE, Sean
    • A61K31/66
    • A61K31/19A61K31/194A61K31/416A61K31/7004A61K41/0042A61K41/0057A61K47/48084A61K47/48861A61K47/54A61K47/548A61K47/6907A61K47/6923A61N5/062A61N2005/067
    • A mitochondria targeted gold nanoparticle (T-3-BP-AuNP) decorated with 3- bromopyruvate (3 -BP) and delocalized lipophilic triphenylphosphonium (TPP) cations to target the mitochondrial membrane potential (Δ ψ m) was developed for delivery of 3 -BP to cancer cell mitochondria by taking advantage of higher Δ ψ m in cancer cell compared to normal cells. This construct showed remarkable anticancer activity in prostate cancer cells compared to non-targeted construct NT-3-BP-AuNP and free 3- BP. Anticancer activity of T-3-BP-AuNP was further enhanced upon laser irradiation by exciting the surface plasmon resonance band of AuNP and thereby utilizing a combination of 3 -BP chemotherapeutic and AuNP photothermal effects. T-3-BP- AuNPs showed markedly enhanced ability to alter cancer cell metabolism by inhibiting glycolysis and demolishing mitochondrial oxidative phosphorylation in prostate cancer cells. Our findings demonstrated that mitochondria targeted and concerted chemo-photothermal treatment of glycolytic cancer cells with a single NP may have promise as a new anticancer therapy.
    • 开发了用3-溴丙酮酸(3-BP)和离域亲脂性三苯基鏻(TPP)阳离子装饰的靶向线粒体膜电位(Δψm)的线粒体靶向金纳米颗粒(T-3-BP-AuNP),用于将3 -BP递送至 与正常细胞相比,通过利用癌细胞中更高的Δψm来利用癌细胞线粒体。 与非靶向构建体NT-3-BP-AuNP和游离3-BP相比,该构建体在前列腺癌细胞中显示出显着的抗癌活性。 激光照射后,通过激发AuNP的表面等离子体共振带,从而利用3 -BP化学治疗和AuNP光热效应的组合,T-3-BP-AuNP的抗癌活性进一步提高。 T-3-BP-AuNPs通过抑制糖酵解和排除前列腺癌细胞中的线粒体氧化磷酸化显示出显着提高的癌细胞代谢能力。 我们的研究结果表明线粒体靶向和一致的化学光热治疗糖酵解癌细胞与单一的NP可能有希望作为一种新的抗癌治疗。