ArticleMolecular medicine (Cambridge, Mass.)2025
Dysregulated mitochondrial homeostasis and DNA repair in the progression from colon adenoma to cancer.
Article in Molecular medicine (Cambridge, Mass.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Colorectal Adenocarcinoma: A Comprehensive Narrative Review of Molecular Pathogenesis, Metabolic Vulnerabilities, and Therapeutic Potential of Sorghum Polyphenols.Analytical cellular pathology (Amsterdam) · 2026Review
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16 authors.
Funding
Abstract
backgroundWhile nuclear DNA (nDNA) damage and alterations in nDNA repair are known to play a role in colon cancer (CC), there is insufficient research investigating these processes in mitochondrial DNA (mtDNA).
methodsThis study investigates mtDNA changes in CC, focusing on mitochondrial DNA copy number (mtDNA-CN) variations, mtDNA damage, and the expression and mutation status of DNA repair genes. Three cohorts were analyzed: healthy controls, colon adenoma patients, and CC patients, divided into a pilot and a validation set.
resultsOur findings revealed that mtDNA-CN was elevated in colon adenomas compared to adenoma-adjacent mucosa (FDR = 0.04), healthy mucosa (FDR = 0.005), and tumor-adjacent mucosa (FDR = 0.005). Moreover, mtDNA-CN was elevated in adenoma-adjacent mucosa compared to healthy mucosa (FDR = 0.04). MtDNA damage was greater in tumor-adjacent mucosa compared to tumor tissue in both the pilot and validation sets (FDR = 0.031 and FDR = 2.06e-05, respectively). Additionally, we identified novel DNA repair genes associated with mtDNA damage, predominantly upregulated in adenoma and tumor tissues compared to healthy colon tissues.
conclusionsTo conclude, this study highlights the importance of mtDNA alterations in CC development and identifies potential mtDNA biomarkers.
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