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Scand J Immunol. 2002 Nov;56(5):538-42.

Analysis of complement-bound HCV complexes using a novel immuno-capture RT-PCR method.

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The Key Laboratory of Education Ministry for Cell Biology and Tumor Cell Engineering, Department of Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, PR China.


Recently, more and more evidence has supported the hypothesis that liver cell injury was immune-mediated in patients with hepatitis C virus (HCV) infection, and that circulating immune complexes (CICs) might play a role in the pathogenesis of chronic hepatitis C (HC). In the present study, we have combined immuno-capture and reverse transcriptase-polymerase chain reaction (RT-PCR), and developed a quick method of high specificity for the detection of complement-bound HCV-CIC. We found that there were higher frequencies of HCV-C1q CIC than that of HCV-factor B, and there was a deviation of complement from immunoglobulin (Ig) in HCV-CIC. These findings suggest that immuno-capture RT-PCR (iRT-PCR) for the detection of HCV-bound CIC is a valuable method for the analysis of the composition of the immune complexes, and for the understanding of host immune response and immune pathogenesis in HCV-infected individuals.

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