牛奶电动车通过骨质细胞向促进形牙周炎骨修复
Journal of dental research
|October 18, 2025
概括
由牛奶衍生的工程外细胞囊泡 (MEVs) 向骨质母细胞,以修复慢性牙周炎 (CAP) 中的骨损伤. 这些DPS-MEV激活氧化酸化并促进M2巨细胞的两极分化,从而增强骨再生和减少炎症.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 免疫学 免疫学 免疫学
背景情况:
- 慢性上性牙周炎 (CAP) 导致膜骨损失,目前的治疗方法缺乏骨修复的特异性.
- 细胞外囊泡 (EVs),特别是乳制品EVs (MEVs),显示出对骨再生的希望,并具有抗炎性质.
研究的目的:
- 研究用骨质细胞向性 (DPS) 修改的工程MEVs的治疗疗效,用于治疗CAP.
- 在CAP模型中评估DPS修饰的MEVs在增强骨质生成和促进骨修复方面的潜力.
主要方法:
- 开发了具有骨质细胞向性 (DPS-MEVs) 的工程MEVs.
- 在体外和体内研究评估了DPS-MEVs的骨质生成能力,骨质细胞向和作用机制 (通过KLF4/Ndufa4激活OXPHOS).
- DPS-MEV被移植到狗的CAP模型中,通过角微手术来评估骨修复和抗炎作用.
主要成果:
- 与未经修改的MEV相比,DPS-MEVs表现出增强的骨质母细胞向和骨质生成能力.
- 骨质细胞向和骨质生成是由KLF4诱导的ndufa4上调调节,激活氧化酸化 (OXPHOS) 的介导.
- 在体内,DPS-MEVs促进了M2巨细胞的两极分化,从而改善了骨的修复,并减少了狗CAP模型中的炎症.
结论:
- 工程DPS-MEVs代表了对CAP的有前途的双重功能疗法,同时解决组织修复和免疫调节问题.
- 这种方法有可能通过向骨质母细胞和调节免疫反应来精确治疗炎症性骨病.
更多相关视频
06:47Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
Published on: May 4, 2018
9.8K
09:34Visualizing Angiogenesis by Multiphoton Microscopy In Vivo in Genetically Modified 3D-PLGA/nHAp Scaffold for Calvarial Critical Bone Defect Repair
Published on: September 7, 2017
9.8K
相关概念视频
Osteoclasts in Bone Remodeling
3.9K
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...
3.9K
The Extracellular Matrix
88.1K
Overview
88.1K
The Extracellular Matrix
11.9K
Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
11.9K
Bone Remodeling
40.2K
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.
40.2K
Essential Minerals for Bone Health
5.9K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect 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...
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...
5.9K
