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Updated: Jun 2, 2026
05:52
Murine Dermal Lymphatic Endothelial Cell Isolation
Published on: July 21, 2023
miR-146a is modulated in human endothelial cell with aging
Mariuca Vasa-Nicotera1, Hailan Chen, Paola Tucci
1Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK. mariuca.vasa-nicotera@ukb.uni-bonn.de
Atherosclerosis
|April 23, 2011
Summary
MicroRNA-146a (miR-146a) drives premature endothelial cell senescence by targeting NOX4, contributing to vascular aging. Identifying miR-146a offers new therapeutic avenues for vascular disorders.
Area of Science:
- Molecular Biology
- Cell Biology
- Vascular Biology
Background:
- Endothelial cell senescence is a key factor in vascular diseases like atherosclerosis and thrombosis.
- MicroRNAs (miRs) are small non-coding RNAs regulating gene expression and cellular functions, including those in endothelial cells.
Purpose of the Study:
- To identify microRNAs involved in endothelial cell senescence.
- To elucidate the role of miR-146a in endothelial cell aging and vascular dysfunction.
Main Methods:
- Microarray analysis to identify differentially expressed miRs in aging endothelial cells.
- Investigating the function of miR-146a in young human umbilical vein endothelial cells.
- Identifying direct mRNA targets of miR-146a using bioinformatic and experimental approaches.
Main Results:
- miR-146a expression is progressively modulated in endothelial cells during aging.
- miR-146a induces a premature senescence-like phenotype in young endothelial cells.
- NOX4 protein, implicated in senescence, is a direct target of miR-146a.
Conclusions:
- miR-146a is a critical regulator of endothelial cell senescence.
- Targeting miR-146a may offer novel therapeutic strategies for age-related vascular disorders such as atherosclerosis and thrombosis.
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