相关实验视频

Updated: May 21, 2025

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Published on: September 21, 2017

专为精确基因治疗风湿性关节炎而设计的-寡核酸纳米混合体

Qing Wang¹, Xiaole Peng^1,2, Xiaoting Gao³

¹Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China.

Advanced materials (Deerfield Beach, Fla.)

|March 19, 2025

概括

工程化和寡核酸纳米混合体为风湿性关节炎 (RA) 提供了一个有前途的新基因疗法. 这些纳米混合物向炎症区域,改善分娩,并在RA模型中有效治疗骨破坏和骨质疏松症.

科学领域:

生物医学工程生物医学工程
基因治疗基因治疗
纳米技术纳米技术

背景情况:

类风湿性关节炎 (RA) 是一种复杂的自身免疫性疾病,导致炎症,骨质再吸收和骨质疏松症,有效治疗方法有限.
目前针对RA的寡核酸 (ON) 基因疗法面临着诸如酶降解,向不良,细胞透和内分泌体逃逸等挑战.

研究的目的:

开发新的和寡核酸 (PON) 纳米混合体,用于增强 RA 治疗.
克服RA治疗传统ON传递系统的局限性.

主要方法:

工程和寡核 (PON) 纳米混合物的制造.
评估纳米混合物特性,包括生物安全性,向性,细胞透性,ROS清理性和内分泌体逃逸性.
在体外抑制炎症反应和骨质细胞生成的评估.
在RA模型中的体内研究,以评估对骨破坏和骨质疏松症的治疗效果.

主要成果:

PON纳米混合体表现出良好的生物安全性和针对性向炎症区域提供.
纳米杂交物促进了细胞膜的透和内分泌体逃逸.
PON纳米混合物有效地抑制了巨细胞中的炎症反应和骨质细胞生成.
在体内给药改善了关节骨破坏和全身骨质疏松症,显示了预防性作用,防止RA进展.

结论:

这项研究提出了一种新的PON纳米混合战略,用于精确的RA治疗.
这种方法扩大了针对自身免疫性疾病的基因治疗输送系统的生物医学应用.

关键词:

生物对等的点击反应反应.细胞透的.基因治疗的基因疗法这是一种寡核化物.类风湿性关节炎类风湿性关节炎

更多相关视频

A Rabbit Model of Durable Transgene Expression in Jugular Vein to Common Carotid Artery Interposition Grafts

A Rabbit Model of Durable Transgene Expression in Jugular Vein to Common Carotid Artery Interposition Grafts

Published on: September 10, 2018

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Published on: January 24, 2025

相关概念视频

Experimental RNAi

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...

siRNA - Small Interfering RNAs

siRNA - Small Interfering RNAs

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...

Gene Therapy

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...