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Recombinant probiotic Escherichia coli delivers the polymeric protein of swine influenza virus for protection.
Vet Microbiol
January 2025
College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China. Electronic address:
Swine influenza virus invades the host through the respiratory mucosa, which severely restricts the development of the pig breeding industry. To construct monomeric and trimeric vaccines, we developed recombinant Escherichia coli Nissle 1917 (EcN) strains that express the receptor binding site (RBS) of the hemagglutinin (HA) antigen from H1N1 swine influenza virus. After the mucosal immunization of mice, we found that probiotics activated CD40 and CD86 in DCs and increased the levels of IL-4 and IFN-γ secretion by T cells.
View Article and Find Full Text PDFHDAC1 and HDAC2 Are Involved in Influenza A Virus-Induced Nuclear Translocation of Ectopically Expressed STAT3-GFP.
Viruses
December 2024
Department of Microbiology and Immunology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
Influenza A virus (IAV) remains a pandemic threat. Particularly, the evolution and increased interspecies and intercontinental transmission of avian IAV H5N1 subtype highlight the importance of continuously studying the IAV and identifying the determinants of its pathogenesis. Host innate antiviral response is the first line of defense against IAV infection, and the transcription factor, the signal transducer and activator of transcription 3 (STAT3), has emerged as a critical component of this response.
View Article and Find Full Text PDFChanges in the Microbiome During Chronic Rhinosinusitis.
Pathogens
December 2024
Department of Otolaryngology and Laryngological Oncology, Poznań University of Medical Sciences, Przybyszewskiego 49 St., 60-355 Poznań, Poland.
Chronic rhinosinusitis (CRS) is a common inflammatory disease of the paranasal sinuses with a yet unknown etiology. As studies continue to elucidate the disease's heterogeneity inflammatory profile and presentation, there is a growing interest in the influence of the nasal microbiome on disease pathogenesis and chronicity. The sinus microbiota appear dominated by the and genera; known upper airway pathogens, such as , are present in the upper airways of healthy individuals, though at relatively lower abundances than in CRS patients.
View Article and Find Full Text PDFEffects of and Alkylamides on Respiratory Virus Replication and IL-8 Expression In Vitro.
Molecules
January 2025
Ric Scalzo Institute for Botanical Research, Sonoran University of Health Sciences, Tempe, AZ 85282, USA.
is a perennial medicinal herb with important immunomodulatory and anti-inflammatory properties, especially purported for the alleviation of cold and flu symptoms. Different classes of secondary metabolites of the plant, such as alkylamides, caffeic acid derivatives, polysaccharides, flavonoids, and glycoproteins, are believed to be biologically and pharmacologically active. Although previous research suggests that the alkylamides present in may be responsible for reducing the symptoms associated with the common cold or flu through their immunomodulatory activity, the roles of specific alkylamides and their targets (i.
View Article and Find Full Text PDFCharacteristics of the First Italian Older Adults Vaccinated with an Adjuvanted Respiratory Syncytial Virus (RSV) Vaccine.
Medicina (Kaunas)
January 2025
Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
: Three respiratory syncytial virus (RSV) vaccines have been recently made available for older adults. Understanding the principal characteristics of the first vaccine-takers can pave the way for a successful vaccination campaign. The objective of this study was to explore the sociodemographic and clinical characteristics of the first Italian users of an adjuvanted RSV vaccine and their attitudes towards RSV and vaccination.
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