相关实验视频

Updated: Jun 17, 2026

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy

Published on: June 21, 2013

在肺癌治疗中,用于有效的BCL-2siRNA输送的多多巴胺修饰的环氧烯金属有机框架

Yu Sun¹, Rongxin Guo², Hongbin Xu¹

¹Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China.

Colloids and surfaces. B, Biointerfaces

|December 14, 2025

概括

这项研究开发了一种新的纳米平台,使用环氧金有机框架和多多巴胺来输送BCL-2siRNA,有效抑制肺癌的生长并增强基因治疗的输送.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
癌症研究癌症研究

背景情况:

B细胞淋巴瘤2 (BCL-2) 的过度表达通过抑制亡,促进肺癌存活率.
像siRNA这样的BCL-2向剂的有效传递至关重要,但面临着重大挑战.
环氧金属有机框架 (CD-MOF) 提供生物相容的药物输送潜力.

研究的目的:

开发一种新的纳米平台,用于增强BCL-2siRNA (siBCL-2) 的传递,用于肺癌治疗.
使用CD-MOF和多多巴胺 (PDA) 克服siRNA稳定性和传递的局限性.
在体外和体内评估siBCL-2@CD-MOF@PDA纳米平台的治疗疗效和生物相容性.

主要方法:

siBCL-2被装入CD-MOF中并涂上PDA以创建siBCL-2@CD-MOF@PDA纳米平台.
用阿加罗斯凝电泳来评估siRNA的稳定性.
西方斑点分析测量了BCL-2蛋白质表达水平.
在A549瘤模型中进行了体内和体外生物分布测定.

主要成果:

CD-MOF@PDA纳米平台显著提高了siRNA对降解的稳定性.
与自由的siBCL-2相比,siBCL-2@CD-MOF@PDA显著减少了BCL-2蛋白质的表达.
该纳米平台表现出优异的内保留和优异的治疗效果在体内.
在siBCL-2@CD-MOF@PDA纳米平台上观察到有利的生物相容性.

结论:

siBCL-2@CD-MOF@PDA纳米平台有效地克服了用于肺癌治疗的siRNA传递挑战.
这种新型纳米平台显示出作为精确癌症基因治疗的替代方案的巨大潜力.
对这种传递系统的进一步研究可以促进向癌症治疗.

关键词:

这些是CD-MOF.基因治疗是一种基因疗法.精确的癌症治疗方法精确的癌症治疗方法小的干扰RNA可以干扰RNA.

更多相关视频

Porous Silicon Microparticles for Delivery of siRNA Therapeutics

Porous Silicon Microparticles for Delivery of siRNA Therapeutics

Published on: January 15, 2015

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery

Published on: May 2, 2019

相关概念视频

Modified-Release Drug Delivery Systems: Site-Targeted

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...