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Updated: May 23, 2026
10:25
Using the E1A Minigene Tool to Study mRNA Splicing Changes
Published on: April 22, 2021
The Splicing Factor SRSF1 as a Marker for Endothelial Senescence
Francisco Javier Blanco1, Carmelo Bernabéu
1Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas and Centro de Investigación Biomédica en Red de Enfermedades Raras Madrid, Spain.
Frontiers in Physiology
|April 4, 2012
Summary
Endothelial cell (EC) senescence, a driver of cardiovascular disease, involves altered alternative splicing. Serine-arginine splicing factor 1 (SRSF1) is identified as a key marker regulating EC aging and vascular pathologies.
Area of Science:
- Vascular Biology
- Cellular Senescence
- Molecular Biology
Background:
- Aging is a primary risk factor for cardiovascular diseases.
- Endothelial cell (EC) senescence underlies age-dependent vascular pathologies like atherosclerosis and hypertension.
- ECs undergo senescence via replicative exhaustion or stress, influenced by factors like TGF-β.
Purpose of the Study:
- To review the role of serine-arginine splicing factor 1 (SRSF1) in regulating alternative splicing during endothelial senescence.
- To identify SRSF1 as a potential molecular marker for EC senescence.
- To explore how SRSF1 influences the expression of key genes involved in vascular aging.
Main Methods:
- Review of current literature on endothelial cell senescence and alternative splicing.
- Focus on the regulatory role of SRSF1 (also known as ASF/SF2) in EC aging.
- Analysis of SRSF1's subcellular localization changes during senescence.
Main Results:
- SRSF1 regulates alternative splicing in senescent ECs.
- SRSF1 exhibits altered subcellular localization (scattered cytoplasmic distribution) in senescent ECs.
- SRSF1 modulates alternative splicing of genes including endoglin (ENG), VEGFA, and lamin A (LMNA).
Conclusions:
- SRSF1 is a key marker of endothelial cell senescence.
- SRSF1-mediated alternative splicing integrates into a common molecular senescence program.
- Understanding SRSF1's role may reveal novel therapeutic targets for age-related vascular diseases.
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