相关实验视频

Updated: Jan 16, 2026

Drug Treatment and In Vivo Imaging of Osteoblast-Osteoclast Interactions in a Medaka Fish Osteoporosis Model

Drug Treatment and In Vivo Imaging of Osteoblast-Osteoclast Interactions in a Medaka Fish Osteoporosis Model

Published on: January 1, 2017

埃尔德卡尔西托尔通过SOCE/O-GlcNAcylation轴减弱内皮铁质,改善2型糖尿病骨质疏松症

Yaling Dai¹, Yujun Jiang¹, Xiaolin Li¹

¹Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China.

Free radical biology & medicine

|September 26, 2025

概括

埃尔德卡尔西托尔 (ED71) 通过改善骨形成和血管健康来对抗2型糖尿病骨质疏松症. 它通过信号传递和O-GlcNAcylation减少内皮细胞铁亡,恢复骨平衡.

科学领域:

内分泌学在内分泌学.
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:

2型糖尿病 (T2DM) 加快骨损失和骨折风险,导致骨质疏松症和降低生活质量.
与T2DM相关的骨质疏松症 (T2DOP) 和内皮细胞铁亡症中,维生素D类型的作用,如埃尔德卡尔西托尔 (ED71),尚未完全理解.
了解骨质生成,血管生成和铁灭症之间的相互作用对于T2DOP治疗至关重要.

研究的目的:

调查ED71在高葡萄糖和高脂肪诱导 (HGHF) 内皮细胞铁和骨质发生障碍中的机制.
在T2DOP的小鼠模型中评估ED71对骨质生成和血管生成合的治疗效果.
阐明特定的信号通路,包括储存运行的入 (SOCE) 和O-GlcNAcylation,参与ED71的作用.

主要方法:

在体外研究中,使用HGHF治疗的内皮细胞和骨髓介质干细胞 (BMSCs).
在体内研究使用T2DOP的小鼠模型.
细胞增殖,迁移,骨质分化,铁离子水平,脂质过氧化,线粒体膜潜力和铁亡标记物的评估.
药理上抑制SOCE (2-aminoethyl diphenylborinate,2APB) 和O-GlcNAcylation (OSMI-1),以研究ED71的机制.

主要成果:

在HGHF条件下,ED71治疗改善了BMSC骨质生成和内皮细胞功能,降低了铁亡标记物 (Fe2+水平,脂质过氧化,线粒体损伤).
在小鼠T2DOP模型中,ED71缓解了骨质生成和血管生成受损,并降低了铁亡.
通过恢复SOCE介导的信号传递和正常化O-GlcNAcylation,ED71抑制了内皮细胞铁亡.
抑制SOCE或O-GlcNAcylation可以抵消ED71的保护作用.

结论:

内皮细胞铁致死与T2DOP的病变发生有关.
ED71通过减轻内皮细胞铁亡,证明了T2DOP的治疗潜力.
SOCE/O-GlcNAcylation轴是ED71调节T2DOP中的内皮细胞铁和骨质稳定的一个关键机制.

关键词:

第71章没有了铁化是铁化的一种.这是一种O-GlcNAcylation.公司 SOCE 公司在T2DOP中,它是T2DOP.这是一艘H型船舶.

更多相关视频

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

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

Published on: April 7, 2023

相关概念视频

Hormones and Bone Tissue

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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...

Osteoclasts in Bone Remodeling

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...

Synthesis and Functions of Calcitonin

Synthesis and Functions of Calcitonin

Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...

Bone Remodeling

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.

Skeleton and Calcium Homeostasis

Skeleton and Calcium Homeostasis

Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.

Bone Disorders

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...