The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
PD-1 Expression in Acute Hepatitis C Virus (HCV) Infection Is Associated with HCV-Specific CD8 Exhaustion
Open accessAbstract
Hepatitis C virus (HCV)-specific CD8 cell exhaustion may represent a mechanism of HCV persistence. The inhibitory receptor PD-1 has been reported to be up-regulated in exhausted CD8 cells. Therefore, we studied PD-1 expression longitudinally during acute HCV infection. Most HCV-specific CD8 cells expressed PD-1 at the time of acute illness, irrespective of the final outcome. PD-1 expression declined with the acquisition of a memory phenotype and recovery of an efficient CD8 cell function in resolving HCV infections, whereas high levels were maintained when HCV persisted and HCV-specific CD8 cells remained dysfunctional. Blocking PD-1/PDL-1 interaction with an anti-PDL-1 antibody improved the capacity of expansion of virus-specific CD8 cells.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Lineage relationship and protective immunity of memory CD8 T cell subsets
Wherry, E. J., Teichgräber, V., Becker, T. C., Masopust, D., Kaech, S. M., Antia, R., von Andrian, U. H., & Ahmed, R. (2003) · Nature Immunology · doi:10.1038/ni889 · Cited by 1,864
Kaech, S. M., Tan, J. T., Wherry, E. J., Konieczny, B. T., Surh, C. D., & Ahmed, R. (2003) · Nature Immunology · doi:10.1038/ni1009 · Cited by 1,830
Brown, J. A., Dorfman, D. M., Ma, F.-R., Sullivan, E. L., Munoz, O., Wood, C. R., Greenfield, E. A., & Freeman, G. J. (2003) · The Journal of Immunology · doi:10.4049/jimmunol.170.3.1257 · Cited by 968
Cited by
PD-1 and Its Ligands in Tolerance and Immunity
Keir, M. E., Butte, M. J., Freeman, G. J., & Sharpe, A. H. (2008) · Annual Review of Immunology · doi:10.1146/annurev.immunol.26.021607.090331 · Cited by 5,378
Molecular Signature of CD8+ T Cell Exhaustion during Chronic Viral Infection
Wherry, E. J., Ha, S.-J., Kaech, S. M., Haining, W. N., Sarkar, S., Kalia, V., Subramaniam, S., Blattman, J. N., Barber, D. L., & Ahmed, R. (2007) · Immunity · doi:10.1016/j.immuni.2007.09.006 · Cited by 2,103
Blackburn, S. D., Shin, H., Haining, W. N., Zou, T., Workman, C. J., Polley, A., Betts, M. R., Freeman, G. J., Vignali, D. A. A., & Wherry, E. J. (2009) · Nature Immunology · doi:10.1038/ni.1679 · Cited by 2,062
Targeting Tim-3 and PD-1 pathways to reverse T cell exhaustion and restore anti-tumor immunity
Sakuishi, K., Apetoh, L., Sullivan, J. M., Blazar, B. R., Kuchroo, V. K., & Anderson, A. C. (2010) · Journal of Experimental Medicine · doi:10.1084/jem.20100643 · Cited by 2,072
Ahmadzadeh, M., Johnson, L. A., Heemskerk, B., Wunderlich, J. R., Dudley, M. E., White, D. E., & Rosenberg, S. A. (2009) · Blood · doi:10.1182/blood-2008-12-195792 · Cited by 1,766
Metadata
- Authors
- Urbani, S., Amadei, B., Tola, D., Massari, M., Schivazappa, S., Missale, G., & Ferrari, C.
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 2006-11
- Volume
- 80
- Issue
- 22
- Pages
- 11398-11403
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- OpenAlex
- W1993617345
- Cited by
- 588
- References
- 3
- FWCI
- 31.90
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: PD-1 Expression in Acute Hepatitis C Virus (HCV) Infection Is Associated with HCV-Specific CD8 Exhaustion. https://app.cochat.ai/papers/10.1128/jvi.01177-06
- The paper
- Urbani, S., Amadei, B., Tola, D., Massari, M., Schivazappa, S., Missale, G., & Ferrari, C. (2006). PD-1 Expression in Acute Hepatitis C Virus (HCV) Infection Is Associated with HCV-Specific CD8 Exhaustion. Journal of Virology. https://doi.org/10.1128/jvi.01177-06
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.