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A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
Published on: May 6, 2014
LncRNA H19 promotes atherosclerosis by regulating MAPK and NF-kB signaling pathway
1Department of Cardiology, University-Town Hospital of Chongqing Medical University, Chongqing, China. 274047837@qq.com.
Insights
Long non-coding RNA H19 is highly expressed in atherosclerosis patients. Overexpressing H19 in HUVEC cells increased proliferation and suppressed apoptosis, suggesting H19 as a potential therapeutic target for atherosclerosis.
Area of Science:
- Cardiovascular Biology
- Molecular Medicine
- Genomics
Background:
- Atherosclerosis is a leading global cause of mortality, driven by complex mechanisms and risk factors.
- The precise role of long non-coding RNAs (lncRNAs) in atherosclerosis pathogenesis remains largely undefined.
- lncRNAs are implicated in various biological and pathological processes.
Purpose of the Study:
- To investigate the expression of lncRNA H19 in atherosclerosis patients.
- To determine the functional role of lncRNA H19 in endothelial cell proliferation and apoptosis.
- To explore the association between lncRNA H19 and key signaling pathways (p38, p65) in atherosclerosis.
Main Methods:
- Quantitative real-time PCR (qRT-PCR) to measure lncRNA H19 expression in 42 atherosclerosis patients and 37 healthy controls.
- Overexpression of lncRNA H19 in Human Umbilical Vein Endothelial Cells (HUVEC).
- Assessment of HUVEC proliferation and apoptosis, and Western blot analysis for p38 and p65 protein levels.
Main Results:
- lncRNA H19 expression was significantly higher in atherosclerosis patients compared to healthy individuals.
- Overexpression of lncRNA H19 in HUVEC cells enhanced cell proliferation and inhibited apoptosis.
- Increased expression of p38 and p65 proteins was observed following lncRNA H19 overexpression.
Conclusions:
- lncRNA H19 is upregulated in atherosclerosis and may play a critical role in disease progression.
- lncRNA H19 promotes endothelial cell proliferation and survival, potentially via the p38/p65 pathways.
- lncRNA H19 represents a promising molecular target for the development of novel atherosclerosis therapies.
Objective:
Atherosclerosis is one of the leading causes of mortality in the world, which is a multistep cardiovascular disease promoted by several of risk factors. However, the detailed mechanism of atherosclerosis remained unclear. LncRNAs have been proved to play an important role in various of biological and pathological processes, but the role of lncRNA in atherosclerosis largely remained unidentified.
Patients And Methods:
Blood sample were collected from 42 patients with atherosclerosis and 37 healthy volunteers. The expression of lncRNA H19 was detected by the qRT-PCR assay. Proliferation and apoptosis of HUVEC were also detected after lncRNA H19 was overexpressed. The expression of p38 and p65 were also measured by Western blot.
Results:
Compared with the normal healthy people, the expression of H19 was higher in patients with atherosclerosis. After lncRNA H19 was overexpressed in HUVEC, the proliferation ability was increased while apoptosis was suppressed. What's more, p38 and p65 were increased after lncRNA H19 was overexpressed.
Conclusions:
LncRNA H19 was highly expressed in atherosclerosis, which could be used as a potential target for treating atherosclerosis.
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