The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Upregulation of PD-1 Expression on Circulating and Intrahepatic Hepatitis C Virus-Specific CD8+T Cells Associated with Reversible Immune Dysfunction
Open accessAbstract
Infection with hepatitis C virus (HCV) is associated with persistence in the majority of individuals. We demonstrate here that the inhibitory molecule programmed death-1 (PD-1) is significantly upregulated on total and HCV-specific CD8+cytotoxic T lymphocytes (CTLs) in the peripheral blood and livers of patients with chronic infection compared to subjects with spontaneous HCV resolution, patients with nonviral liver disease, and normal controls. PD-1 expression on cytomegalovirus-specific CTLs also varies according to HCV status and is highest in patients with chronic infection. HCV-specific CTLs that are PD-1 high express higher levels of the senescence marker CD57 than PD-1 low CTLs, and CD57 expression is greater in chronic than in resolved infection. In vitro blockade of PD-1 by monoclonal antibodies specific to its ligands (PD-L1 and PD-L2) results in restoration of functional competence (proliferation and gamma interferon and interleukin-2 secretion) of HCV-specific CTLs, including those residing in the liver. This reversal of CTL exhaustion is evident even in individuals who lack HCV-specific CD4+T-cell help. Our data indicate that the PD-1/PD-L pathway is critical in persistent HCV infection in humans and represents a potential novel target for restoring function of exhausted HCV-specific CTLs.
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Cites
Restoring function in exhausted CD8 T cells during chronic viral infection
Barber, D. L., Wherry, E. J., Masopust, D., Zhu, B., Allison, J. P., Sharpe, A. H., Freeman, G. J., & Ahmed, R. (2006) · Nature · doi:10.1038/nature04444 · Cited by 3,986
PD-1 expression on HIV-specific T cells is associated with T-cell exhaustion and disease progression
Day, C. L., Kaufmann, D. E., Kiepiela, P., Brown, J. A., Moodley, E. S., Reddy, S., Mackey, E. W., Miller, J. D., Leslie, A. J., DePierres, C., et al. (2006) · Nature · doi:10.1038/nature05115 · Cited by 2,680
Dong, H., Zhu, G., Tamada, K., & Chen, L. (1999) · Nature Medicine · doi:10.1038/70932 · Cited by 2,496
Greenwald, R. J., Freeman, G. J., & Sharpe, A. H. (2005) · Annual Review of Immunology · doi:10.1146/annurev.immunol.23.021704.115611 · Cited by 2,318
Memory CD8+ T cells vary in differentiation phenotype in different persistent virus infections
Appay, V., Dunbar, P. R., Callan, M., Klenerman, P., Gillespie, G. M. A., Papagno, L., Ogg, G. S., King, A., Lechner, F., Spina, C. A., et al. (2002) · Nature Medicine · doi:10.1038/nm0402-379 · Cited by 1,571
Upregulation of PD-1 expression on HIV-specific CD8+ T cells leads to reversible immune dysfunction
Trautmann, L., Janbazian, L., Chomont, N., Said, E. A., Gimmig, S., Bessette, B., Boulassel, M.-R., Delwart, E., Sepulveda, H., Balderas, R. S., et al. (2006) · Nature Medicine · doi:10.1038/nm1482 · Cited by 1,565
Co-inhibitory molecules of the B7–CD28 family in the control of T-cell immunity
Chen, L. (2004) · Nature Reviews Immunology · doi:10.1038/nri1349 · Cited by 1,257
Noncytolytic Control of Viral Infections by the Innate and Adaptive ImmuneResponse
Guidotti, L. G., & Chisari, F. V. (2001) · Annual Review of Immunology · doi:10.1146/annurev.immunol.19.1.65 · Cited by 996
Global surveillance and control of hepatitis C
(1999) · Journal of Viral Hepatitis · doi:10.1046/j.1365-2893.1999.6120139.x · Cited by 904
PD-1 is a regulator of virus-specific CD8+ T cell survival in HIV infection
Petrovas, C., Casazza, J. P., Brenchley, J. M., Price, D. A., Gostick, E., Adams, W. C., Precopio, M. L., Schacker, T., Roederer, M., Douek, D. C., et al. (2006) · The Journal of Experimental Medicine · doi:10.1084/jem.20061496 · Cited by 889
Cited by
Thommen, D. S., Koelzer, V. H., Herzig, P., Roller, A., Trefny, M., Dimeloe, S., Kiialainen, A., Hanhart, J., Schill, C., Hess, C., et al. (2018) · Nature Medicine · doi:10.1038/s41591-018-0057-z · Cited by 1,161
“0 10 20 30 40 50 Mitotic cell cycle (12) Cell division (9) Cell-cell signaling (9) Cell proliferation (80) Chromatin assembly (19) DNA repair (46) DNA metabolic process (70) DNA replication (41) Cell division (81) Cell cycle process (133) Cell cycle (156)”
BackgroundZhou, Q., Munger, M. E., Veenstra, R. G., Weigel, B. J., Hirashima, M., Munn, D. H., Murphy, W. J., Azuma, M., Anderson, A. C., Kuchroo, V. K., et al. (2011) · Blood · doi:10.1182/blood-2010-10-310425 · Cited by 675
Nakamoto, N., Cho, H., Shaked, A., Olthoff, K., Valiga, M. E., Kaminski, M., Gostick, E., Price, D. A., Freeman, G. J., Wherry, E. J., et al. (2009) · PLoS Pathogens · doi:10.1371/journal.ppat.1000313 · Cited by 380
Bengsch, B., Seigel, B., Ruhl, M., Timm, J., Kuntz, M., Blum, H. E., Pircher, H., & Thimme, R. (2010) · PLoS Pathogens · doi:10.1371/journal.ppat.1000947 · Cited by 373
Immune responses and immunopathology in acute and chronic viral hepatitis
Shin, E.-C., Sung, P. S., & Park, S.-H. (2016) · Nature Reviews Immunology · doi:10.1038/nri.2016.69 · Cited by 365
Metadata
- Authors
- Golden-Mason, L., Palmer, B., Klarquist, J., Mengshol, J. A., Castelblanco, N., & Rosen, H. R.
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 2007-09
- Volume
- 81
- Issue
- 17
- Pages
- 9249-9258
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- OpenAlex
- W2151712474
- Cited by
- 371
- References
- 34
- FWCI
- 20.86
- Type
- journal article
- Language
- en
- Open access
- green
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- Golden-Mason, L., Palmer, B., Klarquist, J., Mengshol, J. A., Castelblanco, N., & Rosen, H. R. (2007). Upregulation of PD-1 Expression on Circulating and Intrahepatic Hepatitis C Virus-Specific CD8+T Cells Associated with Reversible Immune Dysfunction. Journal of Virology. https://doi.org/10.1128/jvi.00409-07
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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