ability and therapeutic efficacy in vivo, we proposed to design a human serum albumin (HSA)-Pt agent complex nanoparticle (NP) for cancer treatment by multimodal action against the tumor microenvironment. We not only synthesized a series of Pt(II) di-2-pyridone thiosemicarbazone compounds and obtained a Pt(II) agent [Pt(Dp44mT)Cl] with significant anticancer activity but also successfully constructed a novel
为了克服传统
铂(Pt)基药物的局限性,进一步提高体内靶向能力和治疗效果,我们提出设计一种人
血清白蛋白(H
SA)-Pt剂复合纳米颗粒(NP),通过多模式作用用于癌症治疗对抗肿瘤微环境。我们不仅合成了一系列Pt(II)二-2-
吡啶酮缩
氨基
硫脲化合物,获得了具有显着抗癌活性的Pt(II)试剂[Pt(Dp44mT)Cl],而且成功构建了新型H
SA-Pt(Dp44mT)配合物纳米颗粒输送系统。 H
SA-Pt(Dp44mT) 复合物的结构表明,Pt(Dp44mT)Cl 与 H
SA 的 IIA 子结构域结合并与 His-242 配位。 H
SA-His242-Pt-Dp44mT NPs具有明显的抑制肿瘤生长的作用,优于Dp44mT和Pt(Dp44mT)Cl,且几乎无毒性。此外,H
SA-His242-Pt-Dp44mT NPs被发现可以通过诱导细胞凋亡、自噬和抑制血管生成来杀死癌细胞。