USP18通过抑制JAK/STAT通路来抑制代谢性高血压的进展
Zhihong Xie1, Mingshan Huang2, Wang Xu2
1Department of Cardiology, Ganzhou People's Hospital, 16 Meiguan Dadao, Zhanggong District, Ganzhou, 341000, Jiangxi, China. xzh8880@163.com.
Cardiovascular toxicology
|May 1, 2024
概括
乌比基特异性蛋白酶18 (USP18) 通过增强细胞增殖,逆转细胞亡和氧化应激,并抑制JAK/STAT通路来抑制代谢性高血压的进展. 这一发现为代谢性高血压 (MHR) 提供了潜在的治疗点.
科学领域:
- 心血管研究研究心血管研究
- 代谢综合征是代谢综合征的一种.
- 分子生物学分子生物学
背景情况:
- 代谢性高血压 (MHR) 是代谢综合征的关键组成部分,显著增加心血管疾病的风险.
- 有效管理MHR是具有挑战性的,需要识别关键的致病因子和新的治疗点.
- 了解MHR背后的分子机制对于开发有针对性的干预措施至关重要.
研究的目的:
- 确定代谢性高血压 (MHR) 的致病因素和潜在的治疗点.
- 调查基特异性蛋白酶18 (USP18) 在MHR病原和其下游信号通路中的作用.
- 探索USP18对内皮细胞增殖,细胞亡和氧化应激的影响.
主要方法:
- 使用高糖,高脂肪饮食和乙醇建立了代谢高血压大鼠模型.
- 采用了他的病理学染色 (血素-素,Sirius Red),转录基因组测序和西部涂抹.
- 使用CCK-8,流细胞计和ELISAs评估USP18在HUVEC扩散,亡和氧化应激中的作用.
主要成果:
- 在MHR模型中表现出脂质不良,血管厚度增加,原沉积和氧化应激标志物.
- 转录组测序确定了78个差异表达的基因,USP18被确定为一个关键的枢纽基因.
- USP18过度表达促进了HUVEC的扩散,减少了亡和氧化应激,并抑制了JAK/STAT通路.
结论:
- 通过调节内皮细胞行为和抑制JAK/STAT通路,USP18在代谢性高血压中起着保护作用.
- USP18证明了作为缓解MHR进展和相关心血管风险的治疗目标的潜力.
- 针对USP18可以提供一种新的策略来管理代谢性高血压.
相关概念视频
The JAK-STAT Signaling Pathway
8.8K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.8K
Interactions Between Signaling Pathways
6.3K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.3K
Amplifying Signals via Enzymatic Cascade
8.5K
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
8.5K
PI3K/mTOR/AKT Signaling Pathway
3.5K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.5K
Hypertension and Regulation of Blood Pressure
2.1K
Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
2.1K
NF-κB-dependent Signaling Pathway
7.4K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.4K


