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Pseudorabies virus infection triggers pUL46-mediated phosphorylation of connexin-43 and closure of gap junctions to promote intercellular virus spread.
PLoS Pathog
January 2025
Department of Translational Physiology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium.
Gap junctions (GJs) play a pivotal role in intercellular communication between eukaryotic cells, including transfer of biomolecules that contribute to the innate and adaptive immune response. However, if and how viruses affect gap junction intercellular communication (GJIC) remains largely unexplored. Here, we describe how the alphaherpesvirus pseudorabies virus (PRV) triggers ERK1/2-mediated phosphorylation of the main gap junction component connexin 43 (Cx43) and closure of GJIC, which depends on the viral protein pUL46.
View Article and Find Full Text PDFPossible brain regions involved in parturition in mice.
Am J Physiol Endocrinol Metab
January 2025
Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, China.
Parturition is a vital physiological process in the reproduction of female mammals, regulated by neurohumoral mechanisms coordinated by the central nervous system. The uterus is essential for this process; however, the neural pathways connecting the brain to the uterus remain poorly understood. In this study, we combined the pseudorabies virus (PRV) tracing tool with c-Fos immunofluorescence staining to identify brain regions that may regulate uterine muscle activity during parturition.
View Article and Find Full Text PDFExpression and purification of PNGase F protein in yeast and its anti-PRV activity.
Virology
January 2025
State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, 430062, Wuhan, China; Hubei Jiangxia Laboratory, 430200, Wuhan, China. Electronic address:
Pseudorabies virus (Pseudorabiesvirus, PRV) has caused huge economic losses to the global pig industry. In recent years, it has been reported that there are PRV mutants, but the traditional vaccine can not completely prevent or control the infection of PRV, so there is an urgent need to develop new broad-spectrum anti-disease drugs for prevention and treatment. PNGase F from bacteria can catalyze the hydrolysis of oligosaccharides linked to asparagine residues on peptides, so we speculate that PNGase F can inhibit virus infection by removing the glycosylation of virus membrane glycoproteins.
View Article and Find Full Text PDFMonitoring of Selected Swine Viral Diseases in Peruvian Amazon Peccaries.
Ecohealth
January 2025
Wildlife Conservation Medicine Research Group (WildCoM), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
Peccaries (collared peccary-CP-and white-lipped peccary-WLP) are an essential source of protein and income for rural communities in the Amazon region. Since 1980s, researchers in the Amazon have reported recurrent local disappearances of WLP populations. Although such disappearances impact the species conservation and the food security of rural societies, no studies have drawn consistent conclusions about the causes of these population collapses.
View Article and Find Full Text PDFInhibition of the canonical Wnt/β-catenin pathway interferes with macropinocytosis to suppress pseudorabies virus proliferation.
Vet Microbiol
February 2025
College of Veterinary Medicine, Northwest A&F University, Yangling, China. Electronic address:
Pseudorabies virus (PRV) is one of the highly contagious pathogens causing significant economic losses to the swine industry worldwide. More importantly, PRV is becoming a potential "life-threatening zoonosis" since the human-originated PRV strain was first isolated in 2019. Previously we found that the canonical Wnt/β-catenin pathway facilitates PRV proliferation, while the underlying mechanism remains unknown.
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