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Cited by 329

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Immunological significance of cytotoxic T lymphocyte epitope variants in patients chronically infected by the hepatitis C virus.

Open access
Chang, K M, Rehermann, B, McHutchison, J G, Pasquinelli, C, Southwood, S, Sette, A, Chisari, F V·1997·Journal of Clinical Investigation

Abstract

This study was performed to test the hypothesis that cytotoxic T lymphocyte (CTL) selection of hepatitis C virus (HCV) escape variants plays a role in HCV persistence. The peripheral blood CTL responsiveness of patients with well-established chronic hepatitis C to a panel of 10 prototype HCV peptides (genotype 1a) was compared with the corresponding sequences encoded by the infecting viruses in each patient. Variant viral peptide sequences were threefold more frequent in the presence of a CTL response than in its absence, and CTL responses were detected nearly twice as often in association with variant rather than with prototype viral peptide sequences. Furthermore, over half of the patients were infected with potential CTL escape variants that contained nonimmunogenic and noncross-reactive variant peptides many of which displayed reduced HLA-binding affinity. Surprisingly, follow up analysis over a period of up to 46 mo revealed that, in contrast to the relatively high frequency of escape variants initially observed, the subsequent emergence rate of CTL escape variants was very low. Interestingly, the one escape variant that was detected proved to be a CTL antagonist. Collectively, these observations suggest that CTL selection of epitope variants may have occurred in these patients before their entrance into the study and that it may have played a role in HCV persistence. The low apparent rate of ongoing CTL selection in chronically infected patients, however, suggests that if CTL escape occurs during HCV infection it is probably an early event.

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Metadata

Authors
Chang, K. M., Rehermann, B., McHutchison, J. G., Pasquinelli, C., Southwood, S., Sette, A., & Chisari, F. V.
Venue
Journal of Clinical Investigation
Published
1997-11-01
Volume
100
Issue
9
Pages
2376-2385
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2046178003
Cited by
329
References
34
FWCI
7.87
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Immunological significance of cytotoxic T lymphocyte epitope variants in patients chronically infected by the hepatitis C virus. https://app.cochat.ai/papers/10.1172/jci119778
The paper
Chang, K. M., Rehermann, B., McHutchison, J. G., Pasquinelli, C., Southwood, S., Sette, A., & Chisari, F. V. (1997). Immunological significance of cytotoxic T lymphocyte epitope variants in patients chronically infected by the hepatitis C virus. Journal of Clinical Investigation. https://doi.org/10.1172/jci119778

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