新型长非编码RNAHEAT4影响单细胞亚型,减少炎症并促进血管愈合
Jasmin M Kneuer1,2, Ignacy A Grajek1,2, Melanie Winkler1,2
1Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Germany (J.M.K., I.A.G., M.W., S.E., T.M., M.N.M.-W., A.K., K.E.K., V.F., S.G., U.L., J.-N.B.).
Circulation
|July 15, 2024
概括
一种新的长非编码RNA,HEAT4,作为内源性抗炎剂. 它将单细胞转化为抗炎状态,为心血管疾病提供潜在的治疗点.
科学领域:
- 心脏免疫学
- 分子生物学
- 遗传学
背景情况:
- 免疫系统的激活是心血管疾病的关键因素.
- 人类特异性的长非编码RNA在心脏免疫学中的功能仍然很大程度上是未知的.
研究的目的:
- 识别和描述涉及心脏免疫学的新型人体特异性长非编码RNA.
- 阐明已识别的长非编码RNA在免疫细胞功能和心血管疾病发病过程中的作用.
主要方法:
- 对外围血液单核细胞进行单细胞测序,以发现新的长非编码RNA.
- 在各种体外,体外和来自患者的样本中对HEAT4表达的定量评估.
- 功能损失和功能增益研究,以确定HEAT4的机制作用.
- 在小鼠血管损伤模型中进行RNA-蛋白相互作用测定和体内研究.
主要成果:
- 发现了一种新的人类特异性的长非编码RNA,HEAT4 (心力衰竭相关的转录4).
- 在心力衰竭,急性心肌梗塞和心脏冲击患者中HEAT4表达升高,并预测死亡率.
- 主要由CD16+单细胞表达,促进抗炎基因程序,转移单细胞亚型,并增强内皮屏障完整性.
结论:
- HEAT4 是一种新的内源性抗炎途径,涉及单细胞亚型转化.
- 这项研究揭示了长非编码RNA在调节蛋白质分泌和炎症方面的新功能.
- 包括HEAT4在内的长非编码RNA是心免疫干预的潜在治疗点.
相关概念视频
lncRNA - Long Non-coding RNAs
8.5K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.5K
Inflammation
53.3K
Overview
53.3K
Inflammatory Response
1.9K
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,...
1.9K
Inflammatory Response I: Vascular and Cellular
11.1K
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,...
11.1K
Types of RNA
5.7K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
5.7K


