Abstract
The goal of this study was to determine whether human osteoblasts might harbor the hepatitis C virus. We tested for positive-strand and negative-strand (replicative) hepatitis C virus RNA by reverse transcriptase-polymerase chain reaction, by in situ reverse transcriptase-polymerase chain reaction for intracellular localization of the hepatitis C virus, and by amplicon sequencing in in vitro differentiated mature osteoblasts from STRO-1+ osteoprogenitor cells from patients with chronic hepatitis C and from healthy individuals. We only detected the hepatitis C virus genome in STRO-1+ cells and mature osteoblasts from carriers with chronic hepatitis C, and we found hepatitis C virus negative strands expressed sporadically in these patients. Using in situ hepatitis C virus reverse transcriptase-polymerase chain reaction, we determined that the percentage of infected carrier osteoblasts ranged from 8.0-15.3%. These data provide evidence of hepatitis C virus presence and replication in human osteoprogenitors and osteoblasts, which may have important implications for bone allograft processing.
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