相关实验视频

Updated: Jun 4, 2025

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

Published on: June 8, 2014

基因激活框架核酸向升级调节Sirtuin-1以调节糖尿病骨质疏松症治疗药物的骨质免疫微环境

Zhengwen Cai^1,2, Long Bai^1,3, Qiumei Li³

¹State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.

|December 17, 2024

概括

一种新型纳米药物Tsa通过激活SIRT1基因表达来有效治疗糖尿病骨质疏松症. 这种疗法增强了骨再生,并为骨健康创造了有利的免疫微环境.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
内分泌学在内分泌学.

背景情况:

糖尿病骨质疏松症是糖尿病的并发症,涉及骨质减少和骨折风险增加.
过高血糖会破坏骨质母细胞的功能,阻碍骨的修复和重塑.
目前糖尿病骨质疏松症的治疗方法有限.

研究的目的:

开发一种用于治疗糖尿病骨质疏松症的新型纳米药物.
研究Tsa的治疗潜力,Tsa是一种激活基因的四面体框架核酸 (tFNA),用于激活sirtuin-1 (SIRT1).

主要方法:

开发Tsa,一个旨在保护RNA和激活SIRT1基因表达的tFNA.
在糖尿病骨质疏松症模型中评估Tsa对骨结构,巨分极和分子通路的影响.
组织学,细胞和遗传分析以评估TSA的疗效.

主要成果:

Tsa证明了RNA的保护和有效的细胞膜透,上调SIRT1的表达.
组织学分析显示,骨椎骨密度增加和新的骨形成.
Tsa调节了巨细胞从M1到M2的两极分化,抑制了炎症并激活了SIRT1/NF-κB通路.

结论:

Tsa是一种激活SIRT1的纳米药物,可以有效缓解糖尿病骨质疏松症.
Tsa调节骨免疫微环境,促进骨质细胞的功能.
这种纳米药物显示出治疗糖尿病骨质疏松症的巨大潜力.

关键词:

糖尿病骨质疏松症糖尿病骨质疏松症巨细胞是一个巨细胞.骨质母细胞的骨质母细胞.骨质免疫学骨质免疫学斯尔图因-1 斯尔图因-1 微小激活RNA的使用四面体框架核酸核酸的一个框架.

更多相关视频

Peptides from Phage Display Library Modulate Gene Expression in Mesenchymal Cells and Potentiate Osteogenesis in Unicortical Bone Defects

Peptides from Phage Display Library Modulate Gene Expression in Mesenchymal Cells and Potentiate Osteogenesis in Unicortical Bone Defects

Published on: December 10, 2010

Surgical Bone Implantation Technique for Rat Tibia Models of Diabetes and Osteoporosis

Surgical Bone Implantation Technique for Rat Tibia Models of Diabetes and Osteoporosis

Published on: July 5, 2024

相关概念视频

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...

NF-κB-dependent Signaling Pathway

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...

TGF - β Signaling Pathway

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...