Completed Genetics & Molecular Biology Cells, Biochemistry & Physiology

Chromosome maintenance and repair in health and disease

In plain English

AI plain-English summary

Every day, sunlight, food chemicals, and natural byproducts inside our cells shatter and scramble the DNA that acts as the instruction manual for cell function. If left unrepaired, these countless daily lesions can mutate the genetic code, driving diseases like cancer. This research aims to understand exactly how cells detect, signal, and fix that damaged DNA to prevent mutations and disease in the first place. It also asks why defective repair mechanisms themselves cause illness. This is fundamental science: the goal is to map the machinery of chromosome maintenance and repair at a molecular level. There is no immediate practical application. However, the same work has a deliberate, ironic flip side. Because turning off DNA repair can be highly effective at killing certain cancer cells, the lab is also developing new ways to inhibit repair pathways. If successful, this could lead to novel anti-cancer therapies that exploit a tumour’s own repair weaknesses—a strategy already proven in principle with drugs like PARP inhibitors.

View original technical description
The DNA in our cells is the blueprint, or “instruction manual” required for the proper functioning of cells. A major problem for cells is DNA is very frequently damaged as a result of cross-reactivity with agents that come from outside the cell such as sunlight and chemicals found in food, and also from agents that occur normally inside cells. These agents induce staggering array of DNA lesions every day that if left unrepaired could alter the instructions encoded in DNA resulting in “mutations”. Mutations are responsible for a wide range of human diseases such as cancer. The research in my laboratory is aimed at understanding how cells detect, signal and repair damaged DNA in order to prevent mutations and disease. We also aim to understand how defective DNA repair can cause disease. Ironically turning off DNA repair can be very effective in treating certain types of cancer and we are developing new ways of inhibiting DNA repair with a view to devising new anti-cancer therapies.

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Researchers

John Rouse (Principal Investigator)

Related Research

Grants with similar aims, by meaning.

Investigating how cells repair DNA damage during mitosis
Molecular consequences of DNA damage and dysregulation
Understanding the molecular basis of checkpoint response during DNA double-strand break repair
Replication of DNA damage, and the role of the SMC5-6 protein complex in the responses to DNA damage
Cellular and Pathological Responses to Chromosome DNA Single-Strand Breaks

Original classification

Intramural

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