人类骨质细胞衍生出的生物化学线索和微表面拓学调节了骨质生成在体外和体内
Deepa Mishra1, Anne Bernhardt2, Michael Gelinsky2
1Materials Research Centre, Indian Institute of Science, Bangalore 560012, Karnataka, India.
Biointerphases
|September 26, 2025
概括
间接的共同培养增强了骨的再生. 人类介质干细胞在Ti6Al4V与骨质母细胞因子上显示出增加的矿化和更好的植入物集成体内.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 细胞生物学 细胞生物学
背景情况:
- 间接的共同培养在模拟生物材料上的细胞相互作用方面未得到充分利用.
- 了解材料-细胞相互作用对于有效的组织再生至关重要.
研究的目的:
- 研究Ti6Al4V表面微观地形学和骨质细胞分泌的因素对人类介质干细胞骨质基因分化的协同作用.
- 评估修改的Ti6Al4V基质在体外和体内对骨再生的性能.
主要方法:
- 人类介质干细胞 (hMSCs) 在抛光和沙吹/酸蚀刻的Ti6Al4V基板上培养.
- 使用从人类骨质母细胞 (hOBs) 获得条件化骨质基差异化介质 (cOBM) 的共同培养系统.
- 细胞形态,性酸酶 (ALP) 活性和矿化在体外进行了评估. 在子模型中评估了骨质整合.
主要成果:
- 与cOBM共同培养显著增强了Ti6Al4V基板上的hMSC中的矿化 (2.5倍增加) 和ALP活性.
- 与cOBM相结合的吹沙/酸蚀刻表面显示出优异的骨质生成差异化.
- 在体内研究证实了12周的沙吹/酸蚀刻植入物的加强骨质整合.
结论:
- 特定的表面微观地形和来自骨质母细胞的可溶生物化学线索的结合促进了hMSC骨质基差异化.
- 这种间接的共同培养方法有效地提高了Ti6Al4V生物材料的骨质生成潜力.
- 这些发现支持使用修改后的Ti6Al4V植入物来改善骨再生和骨质整合.
更多相关视频
08:28A Lab-On-A-Chip Platform for Stimulating Osteocyte Mechanotransduction and Analyzing Functional Outcomes of Bone Remodeling
Published on: May 21, 2020
7.3K
10:32Author Spotlight: Simple Establishment of a Vascularized Osteogenic Bone Marrow Niche Using Pre-Cast Poly(Ethylene Glycol) (PEG) Hydrogels in an Imaging Microplate
Published on: May 19, 2023
3.1K
相关概念视频
01:40Bone Remodeling
40.3K
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.
40.3K
01:31Osteoclasts 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
01:17Hormones and Bone Tissue
3.7K
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...
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...
3.7K