相关实验视频

Updated: Jul 5, 2025

Analyzing Cellular Internalization of Nanoparticles and Bacteria by Multi-spectral Imaging Flow Cytometry

Analyzing Cellular Internalization of Nanoparticles and Bacteria by Multi-spectral Imaging Flow Cytometry

Published on: June 8, 2012

聚合诱导的排放装甲活体菌-DNA纳米生物结合物用于准,成像和有效消除细胞内细菌感染

Jing Zhang¹, Xuewen He¹, Ben Zhong Tang²

¹The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, China.

|January 16, 2024

概括

研究人员开发了一种新的菌体纳米结合物,用于治疗细胞内细菌感染. 这种活的纳米结合物准细菌,产生光信号,并以最小的毒性消除感染,提供了一种新的治疗策略.

科学领域:

生物技术是生物技术.
纳米医学是一种纳米医学.
传染性疾病传染性疾病

背景情况:

细胞内细菌感染由于免疫逃避和耐药性而带来重大健康风险.
目前的治疗策略面临着有效向和消除这些病原体的挑战.

研究的目的:

开发一种多功能活菌体纳米结合物用于细胞内细菌感染治疗.
设计一种能够准,成像和消除细胞内细菌的系统,同时恢复细胞功能.

主要方法:

将聚合诱导排放光原体 (AIEgen) 光敏化剂和核酸集成到菌体框架上 (MS2-DNA-AIEgen生物结合物).
利用菌体的向和溶解能力与AIEgen光动力学特性相结合,用于细菌的消除.
在受感染的哺乳动物细胞和糖尿病小鼠伤口模型中评估纳米结合剂的疗效.

主要成果:

该MS2-DNA-AIEgen生物结合物有效地透了哺乳动物细胞,并通过光检测到细胞内细菌.
工程纳米结合物成功消除了细胞内细菌,并恢复了受感染细胞的活动.
在糖尿病小鼠模型中加速伤口愈合,具有增强的免疫活性,没有观察到毒性.

结论:

多功能菌体纳米结合物为细胞内细菌感染提供了一个有前途的治疗方法.
该策略利用向菌体,AIEgen光敏化和核酸集成用于联合治疗和诊断.
开发的纳米结合物显示出在治疗细胞内细菌感染相关疾病方面具有突破性应用的潜力.

关键词:

聚合引发的排放量聚合引发的排放量这是一种抗菌药物,具有抗菌作用.细菌菌体是一种菌体.光成像成像技术的使用.光动力学光动力学定位目标定位目标定位目标

更多相关视频

Phage-mediated Delivery of Targeted sRNA Constructs to Knock Down Gene Expression in E. coli

Phage-mediated Delivery of Targeted sRNA Constructs to Knock Down Gene Expression in E. coli

Published on: March 20, 2016

Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection

Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection

Published on: October 25, 2013

相关概念视频

Lytic Cycle of Bacteriophages

Lytic Cycle of Bacteriophages

Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...

CRISPR and crRNAs

CRISPR and crRNAs

Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...