Two essential modifications strongly improve the performance of the Fast Micromethod to identify DNA single- and double-strand breaks
| Autor: | Kristina Ullmann, Pablo Steinberg, Carsten Müller |
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| Rok vydání: | 2008 |
| Předmět: |
Time Factors
Lysis DNA damage Health Toxicology and Mutagenesis DNA Single-Stranded Biology Toxicology medicine.disease_cause Protein measurement chemistry.chemical_compound medicine Animals Organic Chemicals Cells Cultured DNA Single Strand Break Fluorescent Dyes Double strand DNA General Medicine Fluorescence Rats Biochemistry chemistry Biophysics Genotoxicity DNA Damage |
| Zdroj: | Archives of Toxicology. 82:861-867 |
| ISSN: | 1432-0738 0340-5761 |
| Popis: | To identify DNA single- or double-strand breaks, various techniques have been described. One of them, the Fast Micromethod, is an easy-to-perform 96-well microplate assay. Cells treated with chemicals are loaded with the fluorescent dye PicoGreen®, which binds to double-stranded DNA with a high specificity. Following DNA denaturation in an alkaline buffer, DNA unwinding occurs and PicoGreen® is released. The amount of PicoGreen® released over a certain period of time reflects the extent of DNA damage. To maximize the throughput of the procedure and to minimize DNA damage due to the analytical procedures used, the Fast Micromethod was improved in two essential points. First, the very time-consuming cell-counting was substituted by a simple protein measurement. Second, the cell lysis step was omitted. By introducing the two abovementioned modifications, a high number of samples can now be analyzed within a much shorter period of time. |
| Databáze: | OpenAIRE |
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