[PDF] Top 20 Genetic drift in hypervariable region 1 of the viral genome in persistent hepatitis C virus infection.

... We further investigated the sequence variability of the HCV genomic region that entirely encodes the envelope proteins gp35 and gp7O; these sequences were derived from virus isolated dur[r] ... See full document

... genotype 1, since in our study we examined more than twice as many patients infected with the same genotype, from whom a large number of cloned sequences were derived, and found only a low preva- lence of ... See full document

... of the HCV RNA level and marked reductions of viral protein expression levels (Fig. 3C, bottom). We further showed that the decrease of the intracellular HCV RNA level inversely correlated with the protein ... See full document

... HCV infection by the positivity of the patients’ anti- HCV reactivities (second- and third-generation enzyme-linked immunosorbent assay [ELISA] [Abbott, Chicago, ...chronic persistent hepatitis after ... See full document

... chronic hepatitis C patients undergoing treatment at the Outpatient Clinic of the Hospital for Infectious Diseases in Warsaw from June 2010 to December ...chronic infection with genotype 1b HCV, no ... See full document

... per genome site per year, and several amino acid changes occur over a period of 1 year or more (13, ...pretreatment genetic heterogeneity in HVR1 is correlated with the outcome of IFN-␣ treatment ... See full document

... accelerated genetic divergence of the ISDR was observed in only two of nine treated patients; in the remaining seven patients, the ISDR quasispecies master sequence remained stable during the 6-month course of IFN ... See full document

... The hepatitis A virus cellular receptor 1 (HAVCR1) gene is highly polymorphic, and several variants have been associated with susceptibility to allergic and autoimmune ...gene region was ... See full document

... env). Infection assays with the luciferase reporter gene were performed using target Huh-7 human hepatocarcinoma ...of viral particles were used in each experiment, and this was confirmed by comparing the ... See full document

... the viral RNA has already been cleared from the circulation ...HCV infection with tran- sient ...after infection did contain detectable HCV ... See full document

... and C [30, ...neutralize infection of HCVpp and HCVcc from genotypes 1 and 2 (31, ...genotype 1 to 4 ...Table 1; also, see ...a viral epitope that is not neutralizing ... See full document

... of virus from culture supernatants upon spread to at least 80% of ...displayed virus spread and at least 80% of cells were HCV antigen positive on day 56, suggesting viral ...1a virus, but ORF ... See full document

... in viral attachment and possibly cell ...genotype 1 who did not clear HCV RNA after 6 months of treatment with 3 MU of IFN-␣-2a three times per week (patients A to F) were randomly selected for extensive ... See full document

... for 1 h on ice with a monoclonal mouse anti-human CD81 antibody (Serotec, Raleigh, NC) or a polyclonal rabbit anti-SR-BI antibody (Novus Biologicals, Littleton, CO) at a 1:100 ...a 1:200 ... See full document

... Hypervariable region 1 (HVR1) (amino acids [aa] 384 to 410) on the E2 glycoprotein of hepatitis C virus contributes to persistent infection by evolving escape ... See full document

... swarm of distinct but related variants. The number of variants (complexity) was similar to that found in acute human HCV infection. In each animal there was a master (most commonly observed) sequence representing ... See full document

... with persistent HCV infection rather than conva- lescence in the cross-sectional study (Table ...previously. Viral clearance was observed in four animals within 5 months posti- noculation, with ... See full document

... Hepatitis C virus (HCV), a positive-strand RNA virus of about ...chronic hepatitis. After primary HCV infection, progression to viral persistence is observed in most ... See full document

... the genetic variations of the virus may come from the T cells themselves or from neutralizing antibodies whose production depends on T cells specific for this ...many virus infections, and it has ... See full document

... acute infection, each individual develops a quasispe- cies, or swarm of highly related viral ...of infection did not reveal a common pattern of increasing diversity within each sample, though later ... See full document