Why some neurons are more vulnerable to inflammation
Linking DNA damage and repair to the selective loss of cortical neurons.
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Studying genome instability in neurodegeneration and ageing. UK Dementia Research Institute · University of Cambridge
Our mission is to improve the lives of people affected by brain disease through discoveries that protect brain health.
The Balmus Laboratory studies genome instability in neurodegeneration and ageing. Mature neurons face a particular challenge: they must protect their genetic material over a lifetime. We ask how neurons respond to endogenous genotoxic stress, how these responses change in disease, and which repair pathways influence neuronal survival. Our approach combines CRISPR-Cas9 screening, human stem-cell-derived neuronal models and mouse models, applied to Huntington's disease, ALS and frontotemporal dementia, ataxia telangiectasia and Parkinson's disease. Our work on the naked mole-rat, a remarkably long-lived rodent, explores the biology of healthy brain ageing.

Linking DNA damage and repair to the selective loss of cortical neurons.
Explore the findingReducing MSH3 stalled CAG repeat expansion in patient-derived neuronal models.
Explore the findingA human model reveals early cellular changes and enables tests of potential interventions.
Explore the findingDNA repair pathways and the control of CAG repeat expansion.
Find out more02Genome instability and DNA damage responses in vulnerable neurons.
Find out more03The role of ATM in neuronal genome stability and damage responses.
Find out more04Oxidative stress, mitochondrial integrity and neuronal survival.
Find out more05What the naked mole-rat can teach us about genome stability, neuronal resilience and healthy brain ageing.
Explore our ageing research06We study how inflammation and DNA damage reinforce each other in the brain.
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Research Assistant and PhD student
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Our collaborative bioRxiv preprint presents a telomere-to-telomere naked mole-rat genome assembly, annotated using data from 23 tissues. The resource enables studies of genome stability and the genetic basis of the species’ distinctive biology.
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Our collaboration with Anton G. Henssen, published in Nature Genetics, links the trapping of extrachromosomal DNA in micronuclei to reduced tumour-cell fitness. In MYCN-amplified neuroblastoma, more ecDNA-containing micronuclei at diagnosis were associated with better patient survival.
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Our collaborative preprint with Britt Adamson’s group uses prime editing to distinguish DNA mismatch-repair pathways. A screen of around 72,000 compounds identified selective MutSβ inhibitors that reduced CAG repeat expansion in a cell model.
Read the bioRxiv preprintWe are grateful to the organisations whose funding and support help us advance research into genome stability, neurodegeneration and healthy ageing.