当前位置: X-MOL 学术Bioconjugate Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Chimeric siRNA-DNA Surfactants for the Enhanced Delivery and Sustained Cytotoxicity of a Gold(III) Metallodrug.
Bioconjugate Chemistry ( IF 4.0 ) Pub Date : 2020-03-05 , DOI: 10.1021/acs.bioconjchem.0c00047
Alyssa K Hartmann 1 , Saketh Gudipati 1 , Andrea Pettenuzzo 2 , Luca Ronconi 2 , Jessica L Rouge 1
Affiliation  

Using a recently developed nucleic acid delivery platform, we demonstrate the effective delivery of metallodrug [AuIIIBr2(SSC-Inp-OEt)] (AP228; Inp = isonipecotic moiety), a hydrophobic, low solubility gold complex cytotoxic to cancer cells. It is shown that AP228 is delivered more effectively into HeLa cells using micellular surfactant assemblies compared to that of a more polar derivative [AuIIIBr2(SSC-Inp-GlcN1)] (AP209; GlcN1 = (α,β)-d-glucosamino moiety). When AP228 is codelivered with siRNA targeting Bcl-2, a key regulator of apoptosis, the overall cytotoxic therapeutic effects of the drug are maximized. The optimized delivery and distribution of the compound is monitored by both fluorescence microscopy and inductively coupled plasma mass spectrometry. We show that codelivery of the AP228 and Bcl-2 targeting siRNA results in a substantial increase in drug efficacy, wherein the cytotoxic therapeutic effects of the drug are maximized, reducing the IC50 from 760 nM to 11 nM. This hybrid small molecule drug and therapeutic nucleic acid delivery vehicle is shown to enable both the improved solubility and uptake of the gold(III) metallodrugs and the delivery of chemically unmodified siRNA, resulting in enhanced cytotoxic effects.

中文翻译:

嵌合siRNA-DNA表面活性剂,用于增强金(III)金属药物的递送和持续的细胞毒性。

使用最近开发的核酸递送平台,我们证明了金属药物[Au III Br 2(SSC-Inp-OEt)](AP228; Inp =等二十碳烯部分)的有效递送,该疏水性,低溶解度的金复合物对癌细胞具有细胞毒性。结果表明,与更具极性的衍生物[Au III Br 2(SSC-Inp-GlcN1)](AP209; GlcN1 =(α,β)-d)相比,使用微孔表面活性剂组件将AP228更有效地递送到HeLa细胞中。-葡糖氨基部分)。当AP228与靶向Bcl-2(凋亡的关键调节剂)的siRNA一起编码传递时,该药物的整体细胞毒性治疗作用将最大化。通过荧光显微镜和电感耦合等离子体质谱法监测化合物的最佳递送和分布。我们显示,针对siRNA的AP228和Bcl-2的代码传递导致药物功效的显着提高,其中药物的细胞毒性治疗作用被最大化,将IC 50从760 nM降低到11 nM。该杂化的小分子药物和治疗性核酸递送载体显示出能够提高金(III)金属药物的溶解度和摄取以及化学未修饰的siRNA的递送,从而增强了细胞毒性作用。
更新日期:2020-04-23
down
wechat
bug