Under the continuing support of this project, we have established many of the molecular parameters describing HSV gene expression during the productive replication cycle and during latent infection. DNA sequence and RNA transcription analysis have allowed identification of specific functional elements throughout the genome. More recently, the molecular mechanisms and DNA sequence elements involved in controlling the expression of individual viral genes and the basis for their temporal control are being extensively analyzed. Such work involves both the defined mutagenesis of DNA sequence elements controlling individual viral genes, and the generation of recombinant viruses which Contain such mutated elements for the study of their function. The question of how virus mediated regulatory processes interact with precisely characterized viral promoters and the identification of putative virus-specific cis- acting promoter elements is of central importance in modeling HSV transcriptional regulation. A major goal of the project is the molecular description of the mechanism by which HSV can operate to optimize expression from promoters of differing functional architecture at different stages of infection. This will require identification of local, regional, and global factors influencing the interaction between the viral genome and the cell. Experimentally, the project has the following goals: l) Full characterization of the functional architecture in recombinant viruses of viral promoters which serve as good representatives of their particular kinetic class. 2) Evaluation of the role of promoter location and template accessibility within the viral genome in defining levels of express ion during periods of optimal and sub-optimal expression. 3) Initiation of preliminary immuno-cytochemical analysis of the changes in the cellular transcriptional milieu which leads to changes in transcription patterns during productive infection. 4) Investigation of the biological manifestations of specific promoter structure and kinetic class in terms of possible tissue specific cis- acting elements which may function during reactivation or under conditions of restricted viral replication.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
5R01CA011861-28
Application #
2376741
Study Section
Experimental Virology Study Section (EVR)
Project Start
1978-05-15
Project End
2000-02-29
Budget Start
1997-03-01
Budget End
1998-02-28
Support Year
28
Fiscal Year
1997
Total Cost
Indirect Cost
Name
University of California Irvine
Department
Biochemistry
Type
Schools of Arts and Sciences
DUNS #
161202122
City
Irvine
State
CA
Country
United States
Zip Code
92697
Zeier, Zane; Aguilar, J Santiago; Lopez, Cecilia M et al. (2009) A limited innate immune response is induced by a replication-defective herpes simplex virus vector following delivery to the murine central nervous system. J Neurovirol 15:411-24
Aguilar, Jose Santiago; Held, Katherine S; Wagner, Edward K (2007) Herpes simplex virus type 1 shows multiple interactions with sulfonated compounds at binding, penetration, and cell-to-cell passage. Virus Genes 34:241-8
Aguilar, J S; Devi-Rao, G V; Rice, M K et al. (2006) Quantitative comparison of the HSV-1 and HSV-2 transcriptomes using DNA microarray analysis. Virology 348:233-41
Aguilar, J S; Ghazal, Peter; Wagner, Edward K (2005) Design of a herpes simplex virus type 2 long oligonucleotide-based microarray: global analysis of HSV-2 transcript abundance during productive infection. Methods Mol Biol 292:423-48
Karaca, Gamze; Hargett, Danna; McLean, Tim I et al. (2004) Inhibition of the stress-activated kinase, p38, does not affect the virus transcriptional program of herpes simplex virus type 1. Virology 329:142-56
O'Neil, J E; Loutsch, J M; Aguilar, J S et al. (2004) Wide variations in herpes simplex virus type 1 inoculum dose and latency-associated transcript expression phenotype do not alter the establishment of latency in the rabbit eye model. J Virol 78:5038-44
Sun, Aixu; Devi-Rao, G V; Rice, M K et al. (2004) Immediate-early expression of the herpes simplex virus type 1 ICP27 transcript is not critical for efficient replication in vitro or in vivo. J Virol 78:10470-8
Sun, Aixu; Devi-Rao, G V; Rice, M K et al. (2004) The TATGARAT box of the HSV-1 ICP27 gene is essential for immediate early expression but not critical for efficient replication in vitro or in vivo. Virus Genes 29:335-43
Tran, Robert K; Lieu, Pauline T; Aguilar, Santiago et al. (2002) Altering the expression kinetics of VP5 results in altered virulence and pathogenesis of herpes simplex virus type 1 in mice. J Virol 76:2199-205
Yang, William C; Devi-Rao, G V; Ghazal, Peter et al. (2002) General and specific alterations in programming of global viral gene expression during infection by VP16 activation-deficient mutants of herpes simplex virus type 1. J Virol 76:12758-74

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