PMID- 24667863 OWN - NLM STAT- MEDLINE DCOM- 20140520 LR - 20211021 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 55 IP - 4 DP - 2014 Apr 15 TI - Overexpression of herpes simplex virus glycoprotein K (gK) alters expression of HSV receptors in ocularly-infected mice. PG - 2442-51 LID - 10.1167/iovs.14-14013 [doi] AB - PURPOSE: We have shown previously that HSV-1 glycoprotein K (gK) exacerbates corneal scarring (CS) in mice and rabbits. Here, we investigated the relative impact of gK overexpression on host responses during primary corneal infection and latency in trigeminal ganglia (TG) of infected mice. METHODS: Mice were infected ocularly with HSV-gK(3) (expressing two extra copies of gK replacing latency associated transcript [LAT]), HSV-gK(3) revertant (HSV-gK(3)R), or wild-type HSV-1 strain McKrae. Individual corneas on day 5 post infection (PI) and TG on day 28 PI were isolated and used for detection of gB DNA in the TG, HSV-1 receptors in the cornea and TG, and inflammatory infiltrates in TG. RESULTS: During primary HSV-1 infection, gK overexpression resulted in altered expression of herpesvirus entry mediator (HVEM), 3-O-sulfated heparin sulfate (3-OS-HS), paired immunoglobulin-like type 2 receptor-alpha (PILR-alpha), nectin-1, and nectin-2 in cornea of BALB/c, but not C57BL/6 mice. However, gK overexpression did have an effect on 3-OS-HS, PILR-alpha, nectin-1, and nectin-2 expression (but not HVEM expression) in TG of C57BL/6 mice during latency. These differences did not affect the level of latency, but instead were correlated with the presence of CS. The presence of LAT increased HVEM expression and this effect was enhanced further by the presence of CS in latently-infected mice. Finally, the presence of LAT, but not overexpression of gK, affected CD4, CD8, TNF-alpha, Tim-3, PD-1, IL-21, IL-2, and IFN-gamma expression in TG. CONCLUSIONS: We demonstrate a novel link between gK exacerbation of CS and HSV-1 receptors, suggesting a gK-induced molecular route for the pathogenesis as well as selective advantage of these entry routes for the pathogen during latency-reactivation cycle. FAU - Allen, Sariah J AU - Allen SJ AD - Center for Neurobiology and Vaccine Development, Ophthalmology Research, Department of Surgery, Los Angeles, California, United States. FAU - Mott, Kevin R AU - Mott KR FAU - Ghiasi, Homayon AU - Ghiasi H LA - eng GR - R01 EY013615/EY/NEI NIH HHS/United States GR - 1 R01 EY13615/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140415 PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 RN - 0 (RNA, Viral) RN - 0 (Receptors, Virus) RN - 0 (UL53 protein, Human herpesvirus 1) RN - 0 (Viral Proteins) RN - 0 (simplexvirus receptor) SB - IM MH - Animals MH - Cells, Cultured MH - Cornea/metabolism/pathology/*virology MH - Disease Models, Animal MH - Female MH - *Gene Expression Regulation MH - Herpesvirus 1, Human/genetics/*metabolism MH - Keratitis, Herpetic/genetics/*metabolism/virology MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - RNA, Viral/*genetics MH - Rabbits MH - Real-Time Polymerase Chain Reaction MH - Receptors, Virus/biosynthesis/*genetics MH - Viral Proteins/biosynthesis/*genetics MH - Virus Replication PMC - PMC3989088 OTO - NOTNLM OT - T cells OT - corneal scarring OT - cytokines OT - exhaustion OT - latency OT - virus replication EDAT- 2014/03/29 06:00 MHDA- 2014/05/21 06:00 PMCR- 2014/10/01 CRDT- 2014/03/27 06:00 PHST- 2014/03/27 06:00 [entrez] PHST- 2014/03/29 06:00 [pubmed] PHST- 2014/05/21 06:00 [medline] PHST- 2014/10/01 00:00 [pmc-release] AID - iovs.14-14013 [pii] AID - 10.1167/iovs.14-14013 [doi] PST - epublish SO - Invest Ophthalmol Vis Sci. 2014 Apr 15;55(4):2442-51. doi: 10.1167/iovs.14-14013.