ERK/MAPK is Essential for Neuroprotection in SCN2.2 Cells
Author Information
Author(s): Sumedha W. Karmarkar, Kathleen M. Bottum, Stacey L. Krager, Shelley A. Tischkau
Primary Institution: Southern Illinois University School of Medicine
Hypothesis
Activation of ERK/MAPK provides essential protection to the SCN after exposure to excessive Glu.
Conclusion
Facilitation of ERK activation and inhibition of caspase activation promotes resistance to Glu excitotoxicity in SCN2.2 cells.
Supporting Evidence
- Glu treatment increased caspase 3 activity and cell death in GT1-7 cells.
- Glu alone did not induce cell death in SCN2.2 cells.
- PD98059 pretreatment increased caspase 3 activity in SCN2.2 cells after Glu treatment.
- SCN2.2 cells showed sustained activation of anti-apoptotic pERK/MAPK after Glu treatment.
- Bcl2 protein levels increased in SCN2.2 cells following Glu treatment.
Takeaway
This study shows that a specific pathway in brain cells helps protect them from damage caused by too much glutamate, which can be harmful.
Methodology
SCN2.2 cells were treated with glutamate and an ERK/MAPK inhibitor, and cell death was assessed using various assays.
Limitations
The study was conducted in vitro, which may not fully represent in vivo conditions.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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