Nanotherapeutic approaches to overcome distinct drug resistance barriers in models of breast cancer.

Nanotherapeutic approaches to overcome distinct drug resistance barriers in models of breast cancer.
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克服乳腺癌模型中不同耐药性障碍的纳米方法。

DOI:
10.1515/nanoph-2021-0142
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发表时间:
2021-09
期刊:
影响因子:
7.5
通讯作者:
Goldman A
Goldman A
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Saha T;Mondal J;Khiste S;Lusic H;Hu ZW;Jayabalan R;Hodgetts KJ;Jang H;Sengupta S;Eunice Lee S;Park Y;Lee LP;Goldman A

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靶向向肿瘤细胞输送药物,绕过耐药机制并诱导细胞杀伤,是一个挥之不去的挑战,需要创新的解决方案。在这里,我们提供了两种生物工程策略,其中纳米技术与癌症药物混合,以优先针对不同的耐药机制。在第一个“案例研究”中,我们展示了脂类药物偶联物的使用,这些偶联物针对的是紫杉烷通过细胞表面脂筏堆积而导致的药物耐受的分子信号通路。通过小分子药物筛选,我们确定了一种能够最佳地摧毁耐药癌细胞的激酶抑制剂,并将其连接到合理选择的脂质支架上,从而提高了体外和体内的抗癌效果。在第二个“案例研究”中,我们讨论了通过纳米药物的胞吐作用而发生的耐药机制。使用腺癌HeLa和MCF-7细胞,我们描述了使用金纳米棒和纳米多孔载体与光学天线集成在一起,以按需、在∼650 nm处进行光激活,使有效载荷能够释放到细胞中,包括细胞毒性蒽环类药物。总而言之,这些方法提供了两种方法,这两种方法利用了能够绕过不同阻力障碍的工程策略,并通过包括纳米光子机制在内的多模式诱导杀戮。
Targeted delivery of drugs to tumor cells, which circumvent resistance mechanisms and induce cell killing, is a lingering challenge that requires innovative solutions. Here, we provide two bioengineered strategies in which nanotechnology is blended with cancer medicine to preferentially target distinct mechanisms of drug resistance. In the first ‘case study’, we demonstrate the use of lipid–drug conjugates that target molecular signaling pathways, which result from taxane-induced drug tolerance via cell surface lipid raft accumulations. Through a small molecule drug screen, we identify a kinase inhibitor that optimally destroys drug tolerant cancer cells and conjugate it to a rationally-chosen lipid scaffold, which enhances anticancer efficacy in vitro and in vivo. In the second ‘case study’, we address resistance mechanisms that can occur through exocytosis of nanomedicines. Using adenocarcinoma HeLa and MCF-7 cells, we describe the use of gold nanorod and nanoporous vehicles integrated with an optical antenna for on-demand, photoactivation at ∼650 nm enabling release of payloads into cells including cytotoxic anthracyclines. Together, these provide two approaches, which exploit engineering strategies capable of circumventing distinct resistance barriers and induce killing by multimodal, including nanophotonic mechanisms.
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