کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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3407874 | 1223643 | 2008 | 4 صفحه PDF | دانلود رایگان |
Real-time RT-PCR and Northern blot are employed for the measurement of HCV RNA but suffer from multiple purification steps, high cost, and relatively large variability. In this study, a hybridization method for HCV RNA detection is described. This method does not need RNA purification, and is sensitive enough to detect HCV RNA present in replicon cellular lysates harvested from a single well of a 96-well plate. Fixation of RNA by UV cross-linking is crucial for this sensitivity. A linear relationship exists between hybridization signal and cell density ranging from 105 to as few as 300 cells per well. The signal-to-background ratio is greater than 40 and the Z factor is above 0.7. Using several known anti-HCV agents, dose–response curves and EC50 values generated from hybridization were similar to those obtained from a luciferase assay. This method has been successfully applied to replicons of different HCV subtypes and hepatitis B virus in our laboratory. In summary, this hybridization assay is sensitive, highly reproducible, easy to handle, and a valuable tool for antiviral drug discovery.
Journal: Journal of Virological Methods - Volume 151, Issue 1, July 2008, Pages 154–157