ArticleInternational journal of molecular sciences2023
Impact of Manganese and Chromate on Specific DNA Double-Strand Break Repair Pathways.
Article in International journal of molecular sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Cadmium inhibits hSMUG1-mediated uracil excision: quantitative analysis and mitigation byJournal of enzyme inhibition and medicinal chemistry · 2026Article
- Particulate Hexavalent Chromium Inhibits RAD51 Paralogs Necessary for RAD51 Filament Formation and Stabilization During Homologous Recombination Repair.Occupational Health · 2026Article
- Trivalent chromium interacts directly with acetylated lysine.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025Article
- Oropharyngeal aspiration of particulate hexavalent chromium increases chromium levels in lung and liver, and induces essential metal dyshomeostasis in lung, liver, and blood.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025Article
- Particulate hexavalent chromium inhibits global transcription of genes in DNA repair pathways, particularly targeting homologous recombination repair, base excision repair, mismatch repair and microhomology-mediated end-joining.Journal of hazardous materials · 2025Article
- Microfluidic-based electrically driven particle manipulation techniques for biomedical applications.RSC advances · 2025Review
- Prolonged Particulate Hexavalent Chromium Exposure Induces DNA Double-Strand Breaks and Inhibits Homologous Recombination Repair in Primary Rodent Lung Cells.Biological trace element research · 2024Article
- Phase Separation of FUS with Poly(ADP-ribosyl)ated PARP1 Is Controlled by Polyamines, Divalent Metal Cations, and Poly(ADP-ribose) Structure.International journal of molecular sciences · 2024Article
- Divalent and multivalent cations control liquid-like assembly of poly(ADP-ribosyl)ated PARP1 into multimolecular associates in vitro.Communications biology · 2024Article
- A whale of a tale: whale cells evade the driving mechanism for hexavalent chromium-induced chromosome instability.Toxicological sciences : an official journal of the Society of Toxicology · 2024Article
- Prolonged particulate hexavalent chromium exposure induces RAD51 foci inhibition and cytoplasmic accumulation in immortalized and primary human lung bronchial epithelial cells.Toxicology and applied pharmacology · 2023Article
- Arsenite Impairs BRCA1-Dependent DNA Double-Strand Break Repair, a Mechanism Potentially Contributing to Genomic Instability.International journal of molecular sciences · 2023Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Manganese is an essential trace element; nevertheless, on conditions of overload, it becomes toxic, with neurotoxicity being the main concern. Chromate is a well-known human carcinogen. The underlying mechanisms seem to be oxidative stress as well as direct DNA damage in the case of chromate, but also interactions with DNA repair systems in both cases. However, the impact of manganese and chromate on DNA double-strand break (DSB) repair pathways is largely unknown. In the present study, we examined the induction of DSB as well as the effect on specific DNA DSB repair mechanisms, namely homologous recombination (HR), non-homologous end joining (NHEJ), single strand annealing (SSA), and microhomology-mediated end joining (MMEJ). We applied DSB repair pathway-specific reporter cell lines, pulsed field gel electrophoresis as well as gene expression analysis, and investigated the binding of specific DNA repair proteins via immunoflourescence. While manganese did not seem to induce DNA DSB and had no impact on NHEJ and MMEJ, HR and SSA were inhibited. In the case of chromate, the induction of DSB was further supported. Regarding DSB repair, no inhibition was seen in the case of NHEJ and SSA, but HR was diminished and MMEJ was activated in a pronounced manner. The results indicate a specific inhibition of error-free HR by manganese and chromate, with a shift towards error-prone DSB repair mechanisms in both cases. These observations suggest the induction of genomic instability and may explain the microsatellite instability involved in chromate-induced carcinogenicity.
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