相关实验视频
Updated: Jan 8, 2026

08:01
Stimulation of Notch Signaling in Mouse Osteoclast Precursors
Published on: February 28, 2017
8.3K
通过CD36-PPARγ-POU2F2信号传递,中性粒细胞衍生的血栓蛋白-1 (THBS1) 驱动2型糖尿病诱导的骨质疏松症
Weibo Huang1, Chenghao Zhou1, Rong Wu2
1Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Songjiang District, Shanghai, 201600, China.
Biochimica et biophysica acta. Molecular basis of disease
|December 17, 2025
概括
2型糖尿病 (T2D) 中性粒细胞通过释放血栓蛋白-1 (THBS1) 来恶化骨质疏松症,这导致骨质损失. 天然化合物纳苏宁抑制了这种途径,为糖尿病性骨病提供了潜在的治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 骨生物学 骨生物学 骨生物学
背景情况:
- 2型糖尿病 (T2D) 与骨质疏松症有关,炎症和免疫细胞发挥着作用.
- 中性粒细胞对T2D诱导的骨质损失的具体贡献尚不清楚.
研究的目的:
- 研究中性粒细胞在T2D相关骨质疏松症中的作用.
- 确定分子机制和潜在的治疗点.
主要方法:
- 利用T2D和对照小鼠模型,初级细胞培养和scRNA-seq数据.
- 通过TRAP染色,微型CT和qPCR评估骨质疏松症.
- 使用西式抹杀,ChIP-qPCR,流细胞计和THBS1抑制剂的虚拟查来检查分子相互作用.
主要成果:
- 来自T2D小鼠的中性粒细胞在体内促进了骨质细胞活性和骨质损失.
- 鉴定出血栓蛋白-1 (THBS1) 是一个关键的介导体,在T2D中性粒细胞上调调节.
- THBS1激活了CD36-PPARγ-POU2F2-c-FOS轴,增强了骨质细胞形成.
- 遗传THBS1切除和纳苏宁治疗改善了T2D诱导的骨质疏松症.
结论:
- 中性粒细胞衍生的THBS1通过CD36-PPARγ-POU2F2通路加剧糖尿病骨质疏松症.
- 纳苏宁通过抑制这种途径而成为潜在的治疗剂.
相关概念视频
Hormones and Bone Tissue
3.6K
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...
3.6K
TGF - β Signaling Pathway
10.4K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.4K
Pathophysiology of Diabetes
3.1K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
3.1K
Osteoclasts in Bone Remodeling
3.8K
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...
3.8K
Psychoneuroimmunology: Diabetes and Cancer
409
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
409
