Tritiated Thymidine Incorporation Does not Measure DNA Synthesis in Ribavirin-Treated Human Cells
When the incorporation of tritiated thymidine into acid insoluble material was measured, ribavirin appeared to be a potent inhibitor of DNA synthesis in KB cells and human lymphocytes. Inhibition was nearly 100-fold less, however, when DNA synthesis was measured by incorporation of phosphorus-32-lab...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 1981-05, Vol.212 (4494), p.549-551 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | When the incorporation of tritiated thymidine into acid insoluble material was measured, ribavirin appeared to be a potent inhibitor of DNA synthesis in KB cells and human lymphocytes. Inhibition was nearly 100-fold less, however, when DNA synthesis was measured by incorporation of phosphorus-32-labeled phosphate or by DNA fluorescence. The potent inhibition detected by incorporation of tritiated thymidine into DNA actually was the result of a potent effect on the labeling of deoxythymidine triphosphate, not on the synthesis of DNA. |
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ISSN: | 0036-8075 1095-9203 |
DOI: | 10.1126/science.7209549 |