Do DNA-repair genes protect mitochondrial DNA from damage?
Roles of Lig3 and XRCC1 Genes in Genome Stability
Looks at whether two DNA-repair genes (LIG3 and XRCC1) help prevent harmful changes in mitochondrial DNA that can contribute to cancer, which may matter for people with or at risk for cancer.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of New Mexico Health Scis Ctr NIH-funded |
| Lab location | 1 site (Albuquerque, United States) |
| Project ID | NIH-11251931 on NIH RePORTER |
What this research studies
From a patient's perspective, researchers in Albuquerque are using laboratory experiments on cells and biological samples to see how the DNA-repair proteins LIG3 and XRCC1 act on damaged mitochondrial DNA. They will identify which kinds of oxidative DNA lesions trigger removal of damaged mitochondrial genomes and test whether repair proteins direct those genomes for degradation. The team uses molecular tools that let them follow damaged mitochondrial DNA, compare outcomes when specific repair genes are missing or altered, and measure resulting mutation levels. Results aim to clarify how mitochondrial DNA damage is handled and how that process might influence cancer development or aging-related changes.
Who could benefit from this research
Good fit: People with cancers or genetic conditions involving mitochondrial dysfunction or defects in DNA-repair pathways would be most directly relevant to these findings.
Not a fit: Patients seeking an immediate new therapy should not expect direct clinical benefit from this basic laboratory research at this time.
Why it matters
Potential benefit: If successful, this work could reveal new mechanisms behind cancer-related DNA damage and point to future ways to prevent or treat diseases linked to mitochondrial genome instability.
How similar studies have performed: Previous laboratory studies have shown LIG3 and XRCC1 play roles in DNA repair, but applying that knowledge specifically to mitochondrial genome degradation and its role in cancer is less explored and still emerging.
Where this research is happening
Albuquerque, United States
- University of New Mexico Health Scis Ctr — Albuquerque, United States (Active)
Researchers
- Principal investigator: Tomkinson, Alan E — University of New Mexico Health Scis Ctr
- Study coordinator: Tomkinson, Alan E
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.