相关实验视频
Updated: Sep 15, 2025

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
Published on: April 7, 2023
富含FNDC5 / 伊里辛的sEVs与向骨的阿巴美尔结合,可缓解骨质疏松症:是一种运动的潜在替代方案
Min-Zhi Mao1, Ming-Hui Zheng2, Bei Guo2,3
1Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
运动诱导的小细胞外囊泡 (sEVs) 含有纤维素第3类域含有蛋白5 (FNDC5 / 伊利辛) 保护骨质损失. 这些Exe-sEVs通过通过特定的信号通路增强介质干细胞的骨质生成,促进骨的形成.
科学领域:
- 生物医学科学 生物医学科学
- 细胞生物学 细胞生物学
- 骨生物学 骨生物学 骨生物学
背景情况:
- 众所周知,运动可以保持骨健康并减轻骨质损失.
- 卵巢切除 (OVX) 的小鼠是研究绝经后骨质疏松症的常见模型.
- 小型细胞外囊泡 (sEVs) 正在成为细胞间通信的关键媒介.
研究的目的:
- 调查耐力运动训练的SEVs (Exe-sEVs) 对OVX诱导的骨损失的保护作用.
- 阐明Exe-sEV在骨代谢中的纤维素3型域含蛋白5 (FNDC5/伊里辛) 在骨代谢中的作用.
- 探索Exe-sEVs对骨质疏松症的潜在分子机制和治疗潜力.
主要方法:
- 诱导骨损失的OVX小鼠模型.
- 使用Exe-sEV和GW4869 (sEV抑制剂) 的治疗.
- 在体外研究中,使用与素和Exe-sEVs治疗的骨髓介质干细胞 (BM-MSC) 进行了实验.
- 对信号通路 (p38MAPK,JNK,ERK) 和β-arrestin-2参与的分析.
- 开发和测试APTAMER修饰的FNDC5-sEV (Apt-FNDC5-sEVs) 的开发和测试.
主要成果:
- 在小鼠中,exe-sEVs缓解了OVX诱导的骨损失.
- 在Exe-sEVs中的FNDC5/伊里辛促进了骨质生成,并抑制了BM-MSCs中的脂肪生成.
- 保护作用是通过p38MAPK和JNK信号通路的β-arrestin-2-依赖激活进行的.
- 在体内,Apt-FNDC5-sEVs证明了骨形成的增强.
结论:
- 运动诱导的循环FNDC5 / 素丰富的sEVs是骨代谢的强有力的调节者.
- 这些sEVs通过特定的信号级联促进小鼠BM-MSCs的骨质生成.
- Apt-FNDC5-sEVs是骨质疏松症治疗中的一个有前途的治疗策略.
更多相关视频
07:12Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
Published on: September 28, 2017
11:47A 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
相关概念视频
Osteoclasts in Bone Remodeling
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Essential Minerals for Bone Health
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Role of Vitamins in Maintaining Bone Health
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...