An assay was developed to detect antibodies against two norovirus proteases among participants in a Norwalk virus (GI.1) challenge study. Prechallenge seroprevalence was lower against the protease from the homologous GI.1 virus than against protease from a heterologous GII.4 strain. Seroresponses were detected for 14 of 19 (74%) infected persons.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3535860 | PMC |
http://dx.doi.org/10.1128/CVI.00411-12 | DOI Listing |
Int J Mol Sci
December 2024
Department of Pharmacology & Toxicology, Cancer Center & Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA.
Oncolytic virotherapy has shown great promise in mediating targeted tumor destruction through tumor-selective replication and induction of anti-tumor immunity; however, obstacles remain for virus candidates to reach the clinic. These include avoiding neutralizing antibodies, preventing stimulation of the adaptive immune response during intravenous administration, and inducing sufficient apoptosis and immune activation so that the body's defense can work to eradicate systemic disease. We have developed a co-formulation of oncolytic viruses (OVs) with Imagent lipid-encapsulated, perfluorocarbon microbubbles (MBs) to protect the OVs from the innate and adaptive immune system.
View Article and Find Full Text PDFOpen Forum Infect Dis
November 2024
Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.
Following recent reports of norovirus replication in salivary gland cells, we examined whether the prototype norovirus strain, Norwalk virus (GI.1), could be detected in the saliva of 21 experimentally infected persons. Viral RNA was not detected in saliva 2 and 7 days after challenge despite high levels being present in feces.
View Article and Find Full Text PDFbioRxiv
September 2024
Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, 77030, USA.
Background: Human noroviruses are a leading cause of acute and sporadic gastroenteritis worldwide. The evolution of human noroviruses in immunocompromised persons has been evaluated in many studies. Much less is known about the evolutionary dynamics of human norovirus in healthy adults.
View Article and Find Full Text PDFJ Infect Dis
December 2024
Department of Medicine, Baylor College of Medicine, Houston, Texas, USA.
Background: The in vitro cultivation of human noroviruses allows a comparison of antibody levels measured in neutralization and histo-blood group antigen (HBGA)-blocking assays.
Methods: Serum samples collected during the evaluation of an investigational norovirus vaccine (HIL-214 [formerly TAK-214]) were assayed for neutralizing antibody levels against the vaccine's prototype Norwalk virus/genogroup I, genotype 1 (GI.1) (P1) virus strain.
PLoS One
June 2024
Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, Texas, United States of America.
In vitro models, such as primary cells and continuous cell lines routinely used for evaluating drug candidates, have limitations in their translational relevance to human diseases. Organotypic cultures are increasingly being used to assess therapeutics for various cancers and infectious diseases. Monitoring drug cytotoxicity in cell cultures is crucial in drug development, and several commercially available kits for cytotoxicity assessment offer distinct advantages and limitations.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!