Related Experiment Video
Updated: Aug 18, 2026

Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons
Published on: November 6, 2017
Preservation of DNA integrity and neuronal degeneration
Simona Francisconi1, Mara Codenotti, Giulia Ferrari-Toninelli
1Department of Biomedical Sciences and Biotechnologies, University of Brescia, Medical School, Italy.
Abstract:
The mismatch repair system (MMR) is an important member of the DNA checkpoint, that includes a number of protein deputed to control genomic stability through cell cycle arrest, DNA repair, and apoptosis. Here we summarize some recent data from our and other groups underlining the contribution to neurodegeneration of MSH2, perhaps the most relevant component of the MMR system. These data suggest that this protein participates not only in the cancer prevention machinery for the body but also in neurodegenerative processes.
Insights
The mismatch repair system (MMR), particularly the MSH2 protein, is crucial for genomic stability and may also play a role in preventing neurodegeneration. Research highlights MSH2
Area of Science:
- Genetics and Molecular Biology
- Neuroscience
- Cancer Biology
Background:
- The DNA mismatch repair (MMR) system is vital for maintaining genomic stability.
- MMR proteins are involved in DNA repair, cell cycle arrest, and apoptosis.
- Genomic instability is implicated in various diseases, including cancer and neurodegeneration.
Purpose of the Study:
- To summarize recent findings on the role of MSH2 in neurodegeneration.
- To highlight MSH2's dual function in cancer prevention and neurological processes.
Main Methods:
- Review of recent experimental data from multiple research groups.
- Analysis of MSH2's contribution to neurodegenerative pathways.
Main Results:
- MSH2, a key MMR protein, is implicated in neurodegenerative processes.
- Evidence suggests MSH2's involvement extends beyond cancer prevention.
Conclusions:
- MSH2 plays a significant role in neuroprotection.
- Further research into MMR components may reveal novel therapeutic targets for neurodegenerative diseases.
Related Concept Videos
DNA Damage can Stall the Cell Cycle
DNA Damage Can Stall the Cell Cycle
Neurogenesis and Regeneration of Nervous Tissue
Overview of DNA Repair
Chemically...
Nucleotide Excision Repair
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...

