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Identification of Host-Protein Interaction Network of Canine Parvovirus Capsid Protein VP2 in F81 Cells.
Microorganisms
January 2025
Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, In-Stitute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
Canine Parvovirus (CPV) is a highly contagious virus that causes severe hemorrhagic enteritis and myocarditis, posing a major threat to the life and health of dogs. The molecular mechanism by which VP2, the major capsid protein of CPV, infects host cells and utilizes host cell proteins for self-replication remains poorly understood. In this study, 140 host proteins specifically binding to CPV VP2 protein were identified by immunoprecipitation combined with liquid chromatography-mass spectrometry (LC-MS/MS).
View Article and Find Full Text PDFChanges in tear cytokine and lactoferrin levels in postmenopausal women with primary acquired nasolacrimal duct obstruction complicated with obstructed meibomian gland dysfunction.
BMC Ophthalmol
January 2025
Department of Ophthalmology, Wuhu Eye Hospital, 378 Santan Road, Yijiang District, Anhui Province, Wuhu, 241002, China.
Background: Epiphora and secondary ocular surface damage are increasingly impairing the quality of life of people, particularly elderly women. We aimed to investigate the changes in tear cytokine and lactoferrin levels in postmenopausal women with primary acquired nasolacrimal duct obstruction (PANDO) complicated with obstructed meibomian gland dysfunction (OMGD) and preliminary explore the pathological mechanisms of OMGD in patients with PANDO.
Methods: The prospective study involved 43 and 41 postmenopausal women with and without PANDO, respectively.
Horse Innate Immunity in the Control of Equine Infectious Anemia Virus Infection: A Preliminary Study.
Viruses
November 2024
Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Via Appia Nuova 1411, 00178 Rome, Italy.
The mechanisms of the innate immunity control of equine infectious anemia virus in horses are not yet widely described. Equine monocytes isolated from the peripheral blood of three Equine infectious anemia (EIA) seronegative horses were differentiated in vitro into macrophages that gave rise to mixed cell populations morphologically referable to M1 and M2 phenotypes. The addition of two equine recombinant cytokines and two EIA virus reference strains, Miami and Wyoming, induced a more specific cell differentiation, and as for other species, IFNγ and IL4 stimulation polarized horse macrophages respectively towards the M1 and the M2 phenotypes.
View Article and Find Full Text PDFEvaluation of Safety, Immunogenicity and Cross-Reactive Immunity of OVX836, a Nucleoprotein-Based Universal Influenza Vaccine, in Older Adults.
Vaccines (Basel)
December 2024
Osivax, 70 Rue Saint-Jean-de-Dieu, 69007 Lyon, France.
In a Phase 2a, double-blind, placebo-controlled study including healthy participants aged 18-55 years, OVX836, a nucleoprotein (NP)-based candidate vaccine, previously showed a good safety profile, a robust immune response (both humoral and cellular) and a preliminary signal of protection (VE = 84%) against PCR-confirmed symptomatic influenza after a single intramuscular dose of 180 µg, 300 µg or 480 µg. : Using the same methodology, we confirmed the good safety and strong immunogenicity of OVX836 at the same doses in older adults (≥65 years), a key target population for influenza vaccination. : Significant humoral (anti-NP IgG) and cellular (interferon gamma (IFNγ) spot-forming cells per million peripheral blood mononuclear cells and specific CD4 IFNγ T-cells) immune responses were observed at the three dose levels, without clear dose-response relationship.
View Article and Find Full Text PDFKeratinocyte-Mediated Antigen Presentation in Psoriasis: Preliminary Insights from In Vitro Studies.
Int J Mol Sci
December 2024
Department of Medical Biology and Genetics, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
Antigen presentation plays a critical role in the pathogenesis of immune-mediated disorders. This study aimed to investigate the effects of IFN-γ and a cytokine mix (5MIX: IL-1α, IL-17A, IL-22, OsM, and TNF-α) on the antigen-presenting capabilities of keratinocytes, with a specific focus on immune-mediated dermatological conditions such as psoriasis (Ps). To achieve this, keratinocytes were treated with IFN-γ and 5MIX, and their impact on the expression of key antigen-presentation molecules, HLA-DRα and CD74, was assessed.
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