相关实验视频

Updated: Jun 26, 2025

Author Spotlight: Standardizing and Improving the Extraction and Purification of Extracellular Vesicles from Human ADSCs

Author Spotlight: Standardizing and Improving the Extraction and Purification of Extracellular Vesicles from Human ADSCs

Published on: May 3, 2024

由脂肪介质干细胞分泌的外生体表达过度表达circPIP5K1C的作用

Xin Gu¹, Li Liang², Chao Lu¹

¹Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201999, China.

Biochimica et biophysica acta. Molecular basis of disease

|May 8, 2024

概括

脂肪介质干细胞衍生的外体细胞 (ADSC-EXO) 在治疗阻塞性睡眠呼吸暂停 (OSA) 引起的勃起功能障碍 (ED) 中表现有前途. 这些外生体被设计为过度表达circPIP5K1C,通过准特定的分子通路来恢复平滑肌肉功能.

科学领域:

再生医学是一种再生医学.
分子生物学分子生物学
泌尿器科泌尿器科泌尿器科泌尿器科

背景情况:

阻塞性睡眠呼吸暂停 (OSA) 是勃起功能障碍 (ED) 的重要原因之一.
由于其稳定性和缺乏免疫排斥,正在探索用于ED治疗的脂肪介质干细胞衍生外体 (ADSC-EXO).
ADSC-EXO为与OSA相关的ED提供了一个有希望的治疗途径.

研究的目的:

为了研究ADSC-EXO过度表达circPIP5K1C (EXO-circ) 在OSA诱导ED的老鼠模型中的治疗潜力.
阐明EXO-circ改善ED的潜在分子机制.

主要方法:

勃起功能障碍 (ED) 在Sprague Dawley大鼠和洞穴性光滑肌细胞 (CCSMC) 中使用慢性间歇性缺氧 (CIH) 诱导.
EXO-circ被注射到老鼠的洞穴体中,以治疗ED症状.
分析了涉及miR-153-3p,SMURF1和PFKFB3的分子机制.

主要成果:

在暴露于CIH的老鼠中,EXO-circ有效地改善了ED症状.
该机制涉及EXO环吸附miR-153-3p,促进SMURF1表达,导致PFKFB3无处不在和降解.
这一过程抑制了光滑肌肉细胞糖解,并恢复了光滑肌肉功能.

结论:

EXO-circ在阻塞性睡眠呼吸暂停引起的勃起功能障碍方面显示出显著的治疗潜力.
这项研究突出了治疗ED的新型分子途径.
由ADSC衍生出来的外体构成一种有前途的策略,用于管理与OSA相关的ED.

关键词:

慢性间歇性缺氧慢性间歇性缺氧勃起功能障碍是因为勃起功能障碍.外基因组是外基因组的组成部分.

更多相关视频

Isolation, Characterization, and Therapeutic Application of Extracellular Vesicles from Cultured Human Mesenchymal Stem Cells

Isolation, Characterization, and Therapeutic Application of Extracellular Vesicles from Cultured Human Mesenchymal Stem Cells

Published on: September 23, 2022

Immunomagnetic Separation of Fat Depot-specific Sca1high Adipose-derived Stem Cells ASCs

Immunomagnetic Separation of Fat Depot-specific Sca1high Adipose-derived Stem Cells ASCs

Published on: August 11, 2016

相关概念视频

Overview of Exosomes

Overview of Exosomes

Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...

Mesenchymal Stem Cells

Mesenchymal Stem Cells

Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...