相关实验视频
Updated: Jan 15, 2026

12:43
On-Chip Endothelial Inflammatory Phenotyping
Published on: July 21, 2012
11.4K
内皮细胞中由细胞因子诱导的类似记忆的反应将慢性炎症与血管疾病风险联系起来
Kieu T T Le1, Nick Keur2, Heleen Middelkamp3
1Department of Genetics, University Medical Center Groningen, University of Groningen, The Netherlands.
Molecular omics
|October 14, 2025
概括
慢性炎症重编程内皮细胞 (ECs),诱导类似记忆的反应. 这些变化增强单细胞粘附,导致血管功能障碍和疾病.
科学领域:
- 血管生物学 血管生物学
- 免疫学 免疫学 免疫学
- 细胞重编程 细胞重编程
背景情况:
- 慢性炎症是传染病和血管疾病的关键.
- 内皮细胞 (ECs) 是受炎症影响的关键接口.
- 慢性炎症对ECs的分子影响尚不清楚.
研究的目的:
- 研究细胞因子诱导的炎症如何塑造内皮细胞功能.
- 模型慢性炎症使用重复的细胞因子暴露在HUVECs.
- 在慢性炎症条件下识别EC的分子和功能变化.
主要方法:
- 初级人类静脉内皮细胞 (HUVECs) 暴露于TNF-α和IFN-γ.
- 转录基因和表观遗传分析,以分析细胞反应.
- 芯片上的3D容器模型用于评估功能变化,如单细胞粘附.
主要成果:
- 电子记忆体表现出持久的转录和染色质变化,模仿免疫记忆表型.
- 再次暴露于TNF-α增强了免疫训练基因 (TLR2,IL1B,HDAC9) 的激活.
- IFN-γ诱导了MHCII类位点的持续表达和染色质可访问性.
- 重振的EC显示单细胞粘附增加,与血管炎症相关.
- 改变的调节区域对与疾病相关的SNP (COVID-19,败血症,心血管疾病) 进行了丰富.
结论:
- 重复暴露于细胞因子会诱导内皮细胞的类似记忆的反应.
- 内皮细胞重编程有助于慢性炎症状态的血管功能障碍.
- 这些发现表明,对于炎症性血管疾病,有新的治疗点.
相关概念视频
Inflammatory Response I: Vascular and Cellular
16.0K
The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
16.0K
Inflammation
61.6K
Overview
61.6K
Inflammatory Response
16.0K
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,...
16.0K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
7.4K
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...
7.4K
Psychoneuroimmunology: Cardiovascular Disease
391
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
391
Myocarditis I: Introduction
369
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
369

