相关实验视频
Updated: Feb 7, 2026

05:39
Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
672
在系统性红斑狼中识别狼免疫复杂驱动的致病性亲炎性单细胞和巨
bioRxiv : the preprint server for biology
|February 6, 2026
概括
系统性红斑狼 (SLE) 涉及多种不同的免疫细胞. 狼免疫复合体驱动促炎性单细胞和巨细胞,这在SLE病变发生和潜在的狼性炎中至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 自身免疫性疾病的发病因子
- 细胞生物学 细胞生物学
背景情况:
- 系统性红斑狼 (SLE) 是一种具有显著异质性的自身免疫性疾病.
- 单核细胞 (MPs),包括单细胞 (Mo) 和巨细胞 (MΦ),在SLE病变发生过程中发挥作用.
- 在SLE中MPs的特定功能和异质性,特别是对狼免疫复合体 (ICs) 的反应,需要进一步研究.
研究的目的:
- 为了研究单核细胞 (MPs) 在全身性红斑狼 (SLE) 中的异质性和功能.
- 了解狼免疫综合体 (IC) 刺激如何影响MP种群及其炎症概况.
- 探索特定的MP子集在SLE发病过程中的作用及其与疾病结果的关联,如狼性炎.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 用于分析用U1-snRNP狼ICs刺激的人类单细胞 (Mo).
- 进行了蛋白质组分析,以将转录组变化与蛋白质表达相关联.
- 来自狼患者组织 (皮肤,脏,外围血液) 的scRNA-seq数据集被询问,以在体内识别和描述MP种群.
- 免疫组织化学用于检查狼性炎组织中表达NLRP3的CD68+细胞.
主要成果:
- 狼IC刺激诱导了促炎性Mo的扩张,并增加了炎症基因 (细胞因子,化学因子,转录因子) 的表达.
- 转录组发现在蛋白质水平上得到了验证,显示出强烈的基因-蛋白质表达相关性.
- 在SLE患者的组织中发现了具有相似转录基因特征的促炎性Mo和MΦ种群.
- 一些狼IC刺激的MP子集与I型IFN刺激的细胞呈现出不同的模式,这表明了独立的调节途径.
- 在狼性炎中透的CD68+细胞中的NLRP3表达与治疗结果相关.
结论:
- 狼IC刺激是SLE中促炎性单核细胞反应的关键驱动因素.
- 这些亲炎性MPs对SLE的发病有着显著的贡献.
- 特定的MP子集,如表达NLRP3的子集,可以作为疾病活性和治疗反应的生物标志物,例如狼性炎.
相关概念视频
Humoral Immune Responses
84.0K
Overview
84.0K
What is the Immune System?
130.5K
Overview
130.5K
Immune Response Against Viral Pathogens
2.0K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
2.0K
Inflammatory Response
16.8K
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,...
16.8K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
7.9K
The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
7.9K
Second Order systems II
411
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
411

