TRIM30a协调中性粒细胞和巨细胞的交叉通话,通过抑制NETosis/cGAS-STING轴来解决炎症并驱动骨整合
Jia Li1,2, Yangbo Xu1, Congrui Zhao1
1Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310008, China.
Materials today. Bio
|January 21, 2026
概括
含有蛋白质30a (TRIM30a) 的三部分基因通过平衡中性粒细胞和巨细胞的免疫反应来调节骨再生. 这一发现为增强骨整合和植入成功提供了新的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
背景情况:
- 对骨生物材料的天生的免疫反应对骨质生成至关重要.
- 在骨再生中中性粒细胞-巨细胞交叉的机制尚不清楚.
研究的目的:
- 为了研究含有蛋白质30a (TRIM30a) 的E3无素酶-三合一基因在调节炎症解消和骨质整合中的作用.
- 阐明TRIM30a影响中性粒细胞-巨细胞相互作用和骨再生的分子机制.
主要方法:
- 对具有不同骨质性潜力的金属植入物进行综合的多omics分析.
- 使用了条件淘汰赛小鼠 (全身,中性粒细胞特异性,巨细胞特异性TRIM30a缺乏).
- 在小鼠部植入模型中进行了NETosis测定,炎症信号分析和DNase I的药理验证.
主要成果:
- TRIM30a表达与植入物骨质生成能力正相关.
- 在中性粒细胞中,TRIM30a抑制了NF-κB/NLRP3信号传递,并通过NET衍生dDNA调节了巨细胞cGAS-STING信号传递.
- 在TRIM30a缺乏的小鼠中,治疗性DNase I的使用挽救了骨的形成.
结论:
- TRIM30a是骨再生的主要调节者,控制免疫细胞交叉交谈.
- TRIM30a抑制了中性粒细胞的过活化,并校准了巨细胞的反应,增强了骨质整合.
- 针对TRIM30a介导的免疫调节轴为骨修复提供了新的治疗策略.
相关概念视频
Inflammation
61.8K
Overview
61.8K
Hypothalamic-Pituitary Axis
65.6K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
65.6K
Coordination Number and Geometry
18.9K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
18.9K
Coordination Compounds and Nomenclature
26.4K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
26.4K
Lattice Centering and Coordination Number
11.4K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
Types of Unit Cells
Imagine taking a large number of identical...
11.4K
Equations of Motion: Rectangular Coordinates and Cylindrical Coordinates
746
Understanding the motion of particles is a fundamental aspect of classical mechanics, and the choice of the coordinate system plays a pivotal role in unraveling the complexities of their dynamics.
When a particle moves relative to an inertial frame, the equations of motion can be expressed using rectangular components. If the motion is confined to the x-y plane, the equations having the x and y coordinates only can be used to simplify the mathematical representation.
However, when particles...
When a particle moves relative to an inertial frame, the equations of motion can be expressed using rectangular components. If the motion is confined to the x-y plane, the equations having the x and y coordinates only can be used to simplify the mathematical representation.
However, when particles...
746


