PMID- 12429523 OWN - NLM STAT- MEDLINE DCOM- 20021209 LR - 20190714 IS - 0042-6822 (Print) IS - 0042-6822 (Linking) VI - 302 IP - 1 DP - 2002 Oct 10 TI - Infection of BALB/c mice with a herpes simplex virus type 1 recombinant virus expressing IFN-gamma driven by the LAT promoter. PG - 144-54 AB - A recombinant herpes simplex virus type 1 expressing murine interferon-gamma (IFN-gamma) was constructed (HSV-IFN-gamma) to study the effect of IFN-gamma expression on HSV-1 infection of mice. HSV-IFN-gamma was created by inserting the gene for murine IFN-gamma under the control of the latency-associated transcript (LAT) promoter in a LAT-negative recombinant virus. ELISA analysis confirmed that the recombinant virus expressed high levels of IFN-gamma in tissue culture. The recombinant HSV-IFN-gamma had reduced virulence compared with the wild-type and LAT(-) parental strains as judged by death following ocular and ip infections in BALB/c mice. Replication of HSV-IFN-gamma was wild type in tissue culture and mouse eyes. In addition, peak HSV-IFN-gamma titers in mouse trigeminal ganglia (TG) and brain were similar for all viruses, although HSV-IFN-gamma appeared in the TG and brains of ocularly infected mice earlier than either parental virus. Following stimulation with UV-inactivated virus, lymphocytes from HSV-IFN-gamma-infected mice appeared to produce a steady level of interleukin-2 (IL-2) and IFN-gamma throughout the first week of infection, while the IL-2 and IFN-gamma levels in lymphocytes from wild-type and the LAT-negative parental virus, dLAT2903, varied over time. Also in contrast to lymphocytes from wild-type and dLAT2903-infected mice, lymphocytes from HSV-IFN-gamma-infected mice produced no detectable IL-4. Following stimulation with recombinant IFN-gamma (rIFN-gamma), lymphocytes from HSV-IFN-gamma-infected mice produced higher levels of IFN-gamma, as compared to lymphocytes from control virus-infected mice. Finally, CTL and cell proliferation induced by HSV-IFN-gamma were similar to those of both parental viruses. Thus, this report demonstrates that (i) HSV-IFN-gamma had reduced neurovirulence, despite having enhanced replication in the TG of infected mice; (ii) HSV-IFN-gamma did not enhance CTL activity above that seen in wild-type infected mice; and (iii) HSV-IFN-gamma induced a T(H)1 pattern of cytokine response. FAU - Ghiasi, Homayon AU - Ghiasi H AD - Ophthalmology Research, Cedars-Sinai Burns & Allen Research Institute, Los Angeles, California 90048, USA. ghiasih@cshs.org FAU - Osorio, Yanira AU - Osorio Y FAU - Hedvat, Yahya AU - Hedvat Y FAU - Perng, Guey Chuen AU - Perng GC FAU - Nesburn, Anthony B AU - Nesburn AB FAU - Wechsler, Steven L AU - Wechsler SL LA - eng GR - EY09224/EY/NEI NIH HHS/United States GR - EY13615/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Virology JT - Virology JID - 0110674 RN - 0 (Interleukin-2) RN - 207137-56-2 (Interleukin-4) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Brain/immunology/pathology/virology MH - Cell Division MH - Cell Line MH - Eye/immunology/virology MH - Female MH - Gene Expression MH - Herpes Simplex/*immunology/pathology/virology MH - Herpesvirus 1, Human/genetics/immunology/physiology MH - Humans MH - Interferon-gamma/biosynthesis/genetics/*immunology/pharmacology MH - Interleukin-2/biosynthesis MH - Interleukin-4/biosynthesis MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Promoter Regions, Genetic MH - Recombination, Genetic MH - Solubility MH - T-Lymphocytes, Cytotoxic/cytology/immunology MH - Tears/immunology/virology MH - Trigeminal Ganglion/immunology/pathology/virology MH - Virulence MH - Virus Replication EDAT- 2002/11/14 04:00 MHDA- 2002/12/10 04:00 CRDT- 2002/11/14 04:00 PHST- 2002/11/14 04:00 [pubmed] PHST- 2002/12/10 04:00 [medline] PHST- 2002/11/14 04:00 [entrez] AID - S0042682202916090 [pii] AID - 10.1006/viro.2002.1609 [doi] PST - ppublish SO - Virology. 2002 Oct 10;302(1):144-54. doi: 10.1006/viro.2002.1609.