Upon entry, neuroinvasive herpesviruses traffic from axon terminals to the nuclei of neurons resident in peripheral ganglia, where the viral DNA is deposited. A detailed analysis of herpes simplex virus type 1 (HSV-1) transport dynamics in axons following entry is currently lacking. Here, time lapse fluorescence microscopy was used to compare the postentry viral transport of two neurotropic her...

The permissiveness of cat motor and sensory systems to infection by pseudorabies virus (PRV) was examined. Eight adult cats of both sexes received injections of a virulent strain of PRV (PRV-Becker) into either the diaphragm or neck musculature. Temporal analysis of the replication and transynaptic passage of virus in each experimental paradigm revealed that sensory neurons in the dorsal root g...

Disruption of specific components of the host cytoskeleton has been reported for several viruses and is thought to be beneficial for viral replication and spread. Our previous work demonstrated that infection of swine kidney (SK-6) cells with pseudorabies virus (PRV), a swine alphaherpesvirus, induced actin stress fiber breakdown. In the present study, using several PRV deletion mutants, we fou...

Let G be a complex semisimple simply connected algebraic group. Given two irreducible representations V1 and V2 of G, we are interested in some components of V1 ⊗ V2. Consider two geometric realizations of V1 and V2 using the Borel-Weil-Bott theorem. Namely, for i = 1, 2, let Li be a G-linearized line bundle on G/B such that H (G/B,Li) is isomorphic to Vi. Assume that the cup product H1 (G/B,L1...

Pseudorabies has become endemic and represents a widespread problem for pig production in the world, causing great economic losses associated with reproductive failure and neonatal mortality in the pig industry. Most diseases are the results of mutations of functional genes. Single-nucleotide polymorphisms (SNPs) from the coding regions of the mediators of pro-inflammatory responses or other ca...

The UL20 open reading frame is positionally conserved in different alphaherpesvirus genomes and is predicted to encode an integral membrane protein. A previously described UL20- mutant of herpes simplex virus type 1 (HSV-1) exhibited a defect in egress correlating with retention of virions in the perinuclear space (J. D. Baines, P. L. Ward, G. Campadelli-Fiume, and B. Roizman, J. Virol. 65:6414...

Pseudorabies virus (PRV) early protein 0 (EP0) contains the RING finger domain with homology to the immediate-early (IE) protein ICP0 of herpes simplex virus type 1 (HSV-1). EP0 was detected by indirect immunofluorescence in the nuclei of the cells transfected with EP0 expression plasmid as is the case in cells infected with PRV. In transient expression assays, EP0 transactivated the PRV IE, th...

Recent studies have demonstrated neutrophil overexpression of the polycythemia rubra vera-1 (PRV-1) gene in polycythemia vera (PV) but not in secondary or spurious polycythemia (SP). To validate as well as expand upon this novel observation, we conducted a prospective study of 88 subjects: 30 with PV, 22 with SP, 14 with essential thrombocythemia (ET), 12 with myelofibrosis with myeloid metapla...

Different tissue culture cell lines infected with a number of alphaherpesviruses produce, in addition to virions, light particles (L particles). L particles are composed of the envelope and tegument components of the virion but totally lack the proteins of the capsid and the virus genome; therefore, they are noninfectious. In this electron microscopy report, we show that L particles are produce...