Erlotinib-Guided Self-Assembled Trifunctional Click Nanotheranostics for Distinguishing Druggable Mutations and Synergistic Therapy of Nonsmall Cell Lung Cancer
作者:Yu Gao、Huijuan Zhang、Yingying Zhang、Tingting Lv、Lu Zhang、Ziying Li、Xiaodong Xie、Fengqiao Li、Haijun Chen、Lee Jia
DOI:10.1021/acs.molpharmaceut.8b00561
日期:2018.11.5
outcome of molecular targeted therapies is restricted by the ambiguous molecular subtypes of nonsmall cell lung cancer (NSCLC), which are difficult to be defined with druggable mutations, and the inevitable emergence of drug-resistance. Here we used the Cu-catalyzed click chemistry to synthesize a chitosan-based self-assembled nanotheranostics (CE7Ns) composed of a near-infrared (NIR) fluorescent photosensitizer
非小细胞肺癌(NSCLC)的分子亚型模棱两可,难以针对药物突变进行定义,并且不可避免地出现了耐药性,这限制了分子靶向疗法的结果。在这里,我们使用铜催化的点击化学合成由近红外(NIR)荧光光敏剂Cy7和分子靶向药物厄洛替尼组成的基于壳聚糖的自组装纳米热力学(CE7Ns)。特征明确的CE7Ns可以在酸性条件下在溶菌酶的存在下快速释放厄洛替尼和Cy7,区分NSCLC的三种分子亚型,并特异性结合厄洛替尼敏感的表皮生长因子受体(EGFR)突变的PC-9细胞。与其他NSCLC细胞相比,PC-9细胞对CE7Ns的吸收更多,因此在PC-9细胞中产生明显的荧光信号。NIR照射后,CE7Ns中的Cy7在PC-9细胞中产生高活性氧。厄洛替尼靶向治疗和光动力治疗之间的协同作用显着上调了癌症抑制因子p53并抑制Survivin,从而导致更多的细胞凋亡和细胞周期停滞。静脉内给药后,厄洛替尼引导的CE7Ns在PC-9接