突巨细胞在骨关节炎中的作用
Kun Zhao1,2, Jiaqi Ruan2, Liuyan Nie3
1Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
Frontiers in immunology
|July 26, 2023
概括
骨关节炎 (OA) 涉及炎症,其中突性巨细胞发挥着关键作用. 针对这些巨细胞及其两极分化可能为OA疼痛和软骨保护提供新的治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 细胞生物学 细胞生物学
背景情况:
- 骨关节炎 (OA) 是一种常见的退行性关节疾病,其病因不明.
- 新出现的证据表明,OA涉及炎症,特别是突炎,其中突巨细胞是关键参与者.
- 突性巨细胞不均,但存在于两极分化的M1/M2状态,影响OA的严重程度.
研究的目的:
- 审查突巨细胞及其两极分化在骨关节炎 (OA) 发病过程中的作用.
- 探索OA中的突巨细胞和其他关节细胞之间的相互作用.
- 检查目前和潜在的治疗策略,针对OA中的突性巨细胞.
主要方法:
- 审查有关骨关节炎,突炎和巨生物学的现有文献.
- 对基因表达数据的分析,以在OA中分类突性巨细胞亚型.
- 检查巨细胞和其他关节细胞之间的膜信号通路.
主要成果:
- 综合性巨细胞表现出与OA进展相关的多种极化状态 (M1,M2和中间).
- 大细胞与突纤维细胞,骨质细胞,软质细胞,淋巴细胞和脂肪细胞相互作用,加剧了OA.
- 向突性巨细胞两极分化有望缓解OA症状并保护软骨.
结论:
- 突性巨细胞及其两极化状态是骨关节炎进展的关键决定因素.
- 了解巨细胞与其他关节细胞的相互作用对于开发有效的OA疗法至关重要.
- 专注于调节突巨细胞的治疗策略代表了关节炎治疗的有希望的途径.
相关概念视频
Structural Joints: Synovial Joints
3.7K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
3.7K
T Cell Types and Functions
1.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.1K
Inflammation
53.9K
Overview
53.9K
Osteoclasts in Bone Remodeling
3.0K
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...
3.0K
Inflammatory Response
2.1K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.1K
The JAK-STAT Signaling Pathway
9.0K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
9.0K


