How a Protein Helps Cells Survive Stress
Author Information
Author(s): Cimmino Amelia, Capasso Rosanna, Muller Fabbri, Sambri Irene, Masella Lucia, Raimo Marianna, De Bonis Maria Luigia, D'Angelo Stefania, Zappia Vincenzo, Galletti Patrizia, Ingrosso Diego
Primary Institution: Department of Biochemistry and Biophysics, School of Medicine and Surgery, Second University of Naples, Naples, Italy
Hypothesis
The study investigates the role of protein isoaspartate methyltransferase (PCMT) in preventing apoptosis in endothelial cells under oxidative stress.
Conclusion
PCMT overexpression protects endothelial cells from apoptosis induced by oxidative stress by preventing the accumulation of damaged proteins.
Supporting Evidence
- Cells overexpressing wild type PCMT were resistant to apoptosis.
- Overexpression of antisense PCMT induced high sensitivity to apoptosis.
- PCMT's protective effect is due to its methyltransferase activity.
Takeaway
This study shows that a special protein can help cells stay alive when they are stressed by things like too much oxygen. It does this by fixing damaged proteins.
Methodology
Endothelial cells were transfected with various constructs of PCMT and exposed to oxidative stress using H2O2 to assess apoptosis.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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