PMID- 21307196 OWN - NLM STAT- MEDLINE DCOM- 20110614 LR - 20211020 IS - 1098-5514 (Electronic) IS - 0022-538X (Print) IS - 0022-538X (Linking) VI - 85 IP - 9 DP - 2011 May TI - The role of LAT in increased CD8+ T cell exhaustion in trigeminal ganglia of mice latently infected with herpes simplex virus 1. PG - 4184-97 LID - 10.1128/JVI.02290-10 [doi] AB - Herpes simplex virus (HSV) infection is a classic example of latent viral infection in humans and experimental animal models. The HSV-1 latency-associated transcript (LAT) plays a major role in the HSV-1 latency reactivation cycle and thus in recurrent disease. Whether the presence of LAT leads to generation of dysfunctional T cell responses in the trigeminal ganglia (TG) of latently infected mice is not known. To address this issue, we used LAT-positive [LAT(+)] and LAT-deficient [LAT(-)] viruses to evaluate the effect of LAT on CD8 T cell exhaustion in TG of latently infected mice. The amount of latency as determined by quantitative reverse transcription-PCR (qRT-PCR) of viral DNA in total TG extracts was 3-fold higher with LAT(+) than with LAT(-) virus. LAT expression and increased latency correlated with increased mRNA levels of CD8, PD-1, and Tim-3. PD-1 is both a marker for exhaustion and a primary factor leading to exhaustion, and Tim-3 can also contribute to exhaustion. These results suggested that LAT(+) TG contain both more CD8(+) T cells and more CD8(+) T cells expressing the exhaustion markers PD-1 and Tim-3. This was confirmed by flow cytometry analyses of expression of CD3/CD8/PD-1/Tim-3, HSV-1, CD8(+) T cell pentamer (specific for a peptide derived from residues 498 to 505 of glycoprotein B [gB(498-505)]), interleukin-2 (IL-2), and tumor necrosis factor alpha (TNF-alpha). The functional significance of PD-1 and its ligands in HSV-1 latency was demonstrated by the significantly reduced amount of HSV-1 latency in PD-1- and PD-L1-deficient mice. Together, these results may suggest that both PD-1 and Tim-3 are mediators of CD8(+) T cell exhaustion and latency in HSV-1 infection. FAU - Allen, Sariah J AU - Allen SJ AD - Center for Neurobiology and Vaccine Development, D2024, Cedars-Sinai Burns and Allen Research Institute, 8700 Beverly Blvd., Los Angeles, CA 90048, USA. FAU - Hamrah, Pedram AU - Hamrah P FAU - Gate, David AU - Gate D FAU - Mott, Kevin R AU - Mott KR FAU - Mantopoulos, Dimosthenis AU - Mantopoulos D FAU - Zheng, Lixin AU - Zheng L FAU - Town, Terrence AU - Town T FAU - Jones, Clinton AU - Jones C FAU - von Andrian, Ulrich H AU - von Andrian UH FAU - Freeman, Gordon J AU - Freeman GJ FAU - Sharpe, Arlene H AU - Sharpe AH FAU - BenMohamed, Lbachir AU - BenMohamed L FAU - Ahmed, Rafi AU - Ahmed R FAU - Wechsler, Steven L AU - Wechsler SL FAU - Ghiasi, Homayon AU - Ghiasi H LA - eng GR - 1P20RR15635/RR/NCRR NIH HHS/United States GR - R01 EY013191/EY/NEI NIH HHS/United States GR - R01 EY013615/EY/NEI NIH HHS/United States GR - K08 EY020575-01/EY/NEI NIH HHS/United States GR - EY13615/EY/NEI NIH HHS/United States GR - EY13191/EY/NEI NIH HHS/United States GR - R01 AI069259/AI/NIAID NIH HHS/United States GR - P01 56299/PHS HHS/United States GR - K08 EY020575/EY/NEI NIH HHS/United States GR - P20 RR015635/RR/NCRR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20110209 PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Antigens, Differentiation) RN - 0 (CD8 Antigens) RN - 0 (Havcr2 protein, mouse) RN - 0 (Hepatitis A Virus Cellular Receptor 2) RN - 0 (MicroRNAs) RN - 0 (Pdcd1 protein, mouse) RN - 0 (Programmed Cell Death 1 Receptor) RN - 0 (Receptors, Virus) RN - 0 (latency associated transcript, herpes simplex virus-1) SB - IM MH - Animals MH - Antigens, Differentiation/biosynthesis MH - CD8 Antigens/biosynthesis MH - CD8-Positive T-Lymphocytes/*immunology MH - Flow Cytometry MH - Gene Expression Profiling MH - Hepatitis A Virus Cellular Receptor 2 MH - Herpes Simplex/*immunology/virology MH - Herpesvirus 1, Human/*immunology MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - MicroRNAs/*metabolism MH - Programmed Cell Death 1 Receptor MH - Receptors, Virus/biosynthesis MH - Trigeminal Ganglion/*immunology MH - *Virus Latency PMC - PMC3126262 EDAT- 2011/02/11 06:00 MHDA- 2011/06/15 06:00 PMCR- 2011/11/01 CRDT- 2011/02/11 06:00 PHST- 2011/02/11 06:00 [entrez] PHST- 2011/02/11 06:00 [pubmed] PHST- 2011/06/15 06:00 [medline] PHST- 2011/11/01 00:00 [pmc-release] AID - JVI.02290-10 [pii] AID - 2290-10 [pii] AID - 10.1128/JVI.02290-10 [doi] PST - ppublish SO - J Virol. 2011 May;85(9):4184-97. doi: 10.1128/JVI.02290-10. Epub 2011 Feb 9.