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相关概念视频

Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

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Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
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相关实验视频

Updated: Dec 15, 2025

Creation of a Knee Joint-on-a-Chip for Modeling Joint Diseases and Testing Drugs
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Creation of a Knee Joint-on-a-Chip for Modeling Joint Diseases and Testing Drugs

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工程人类骨关节炎软骨器官.

Laura Dönges1, Atharva Damle1, Andrea Mainardi1

  • 1Department of Biomedicine, University Hospital Basel, University of Basel, 4031, Basel, Switzerland.

Biomaterials
|March 30, 2024
PubMed
概括

研究人员开发了一种人类骨关节炎 (OA) 软骨器官模型,以研究疾病机制. 该模型将C/EBPβ确定为OA进展的关键因素,为开发疾病修饰性骨关节炎疗法提供了一个新的目标.

关键词:
C/EBPββ 在线阅读软骨有机物 软骨有机物IL1Ra 的时间.炎症 炎症是一种炎症.

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3D Hydrogel Scaffolds for Articular Chondrocyte Culture and Cartilage Generation
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3D Hydrogel Scaffolds for Articular Chondrocyte Culture and Cartilage Generation

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A 3D System for Culturing Human Articular Chondrocytes in Synovial Fluid
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A 3D System for Culturing Human Articular Chondrocytes in Synovial Fluid

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Last Updated: Dec 15, 2025

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3D Hydrogel Scaffolds for Articular Chondrocyte Culture and Cartilage Generation
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科学领域:

  • 生物医学工程 生物医学工程
  • 软骨生物学 软骨生物学
  • 骨关节炎研究 骨关节炎研究

背景情况:

  • 骨关节炎 (OA) 提出了一个重要的未满足的临床需求,需要先进的模型用于治疗开发.
  • 目前基于人类细胞的模型很难完全概括OA复杂的分子病理学.

研究的目的:

  • 设计一个模仿关键OA病理特征的人类器官类型软骨模型.
  • 利用这个模型来识别OA中的新分子驱动因素和治疗点.

主要方法:

  • 介质细胞 stromal 细胞在体发育过程中受到炎症挑战,以产生有机体.
  • 工程化OA软骨器官被IL-1Ra处理,随后进行基于质谱的蛋白质组学.
  • 研究了激活CCAAT/增强剂结合蛋白β (C/EBPβ) 的特定激酶的抑制.

主要成果:

  • 工程模型成功地回顾了OA的标志性特征:冠状细胞缩,矩阵矿化,增强的代谢和机械硬化.
  • 治疗IL-1Ra显著降低了C/EBPβ的产生.
  • 抑制C/EBPβ激活激酶可以逆转与OA相关的降解过程.

结论:

  • 人类OA软骨有机体为发现OA分子驱动因素提供了一个相关的平台.
  • 该模型有助于评估针对OA途径的新疗法.
  • 准C/EBPβ及其激活激酶对OA治疗有希望.