ArticleMolecular and cellular biochemistry2007
Nuclear condensation and free radical scavenging: a dual mechanism of bisbenzimidazoles to modulate radiation damage to DNA.
Article in Molecular and cellular biochemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 18 citations in OpenAlex.
- Increased MCL-1 synthesis promotes irradiation-induced nasopharyngeal carcinoma radioresistance via regulation of the ROS/AKT loop.Cell death & disease · 2022Article
- Factors influencing heterogeneity of radiation-induced DNA-damage measured by the alkaline comet assay.Radiation oncology (London, England) · 2012Article
- DMA, a bisbenzimidazole, offers radioprotection by promoting NFκB transactivation through NIK/IKK in human glioma cells.PloS one · 2012Article
- New insight into the molecular mechanisms of the biological effects of DNA minor groove binders.PloS one · 2011Article
- Modifying radiation damage.Current drug targets · 2010Review
- Please do not disturb: destruction of chromatin structure by supravital nucleic acid probes revealed by a novel assay of DNA-histone interaction.Cytometry. Part A : the journal of the International Society for Analytical Cytology · 2008Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The complexing of histones with DNA and the resulting condensation of chromatin protects mammalian cell, from radiation-induced strand breakage. In the present study, benzimidazoles DMA and TBZ showed marked radioprotection through drug-induced compaction of chromatin and direct quenching of free radicals generated by radiation. The mammalian cells were incubated with 100 microM concentration of DMA and TBZ and irradiated at 5 Gy; both the ligands showed nuclei condensation suggesting a probable mechanism to protect DNA from radiation damage. The bisubstituted analogs of Hoechst 33342 are found to be better free radical scavengers and protect DNA against radiation-induced damage at a lower concentration than the parent molecule. Both the ligands also quenched free radicals in isolated free radical system suggesting their dual mode of action against radiation-induced damage to DNA. Molecules binding to the chromatin alter gene expression, whereas in this study both the ligands have not shown any profound effect on the nucleosome assembly and gene expression in vitro and in vivo. Both ligands afford a 2-fold protection by altering DNA structure as well as through direct free radical quenching in bulk solution in comparison to the parent ligand, which acts only through quenching of free radicals.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.