We are developing efficient methods for gene transfer into tissue culture cells. We have previously shown that coupling of a chimeric adenovirus with polylysine allowed the construction of an adenovirus-polylysine-reporter-gene complex that transferred the transporter gene with great efficiency into HeLa cells. We have now explored simpler, biochemical means for coupling adenovirus to DNA/polylysine complexes and show that such complexes yield virtually 100% transfection in tissue culture cell lines. In these methods adenovirus is coupled to polylysine, either enzymatically through the action of transglutaminase or biochemically by biotinylating adenovirus and streptavidinylating the polylysine moiety. Combination complexes containing DNA, adenovirus-polylysine, and transferrin-polylysine have the capacity to transfer the reporter gene into adenovirus-receptor- and/or transferrin-receptor-rich cells.
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http://dx.doi.org/10.1073/pnas.89.13.6099 | DOI Listing |
Front Immunol
November 2024
College of Basic Medical Sciences, Shanxi University of Chinese Medicine, Jinzhong, China.
Background: Autoimmune hepatitis (AIH) is a chronic liver inflammatory disease mediated by autoimmune reactions, the pathogenesis of AIH is probably related to the imbalance of intestinal flora. Yinchenhao decoction (YCHD) has been used to relieve AIH. However, the mechanisms underpinning YCHD's hepatoprotective effects with the gut microbito have not been fully revealed.
View Article and Find Full Text PDFViruses
November 2024
Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong (CUHK), 6/F Lui Che Woo Clinical Sciences Building, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China.
Unlabelled: The study highlights the significant changes in respiratory virus epidemiology following the lifting of COVID-19 restrictions.
Method: In this single-centre retrospective study, the virological readouts of adenovirus (AdV), influenza virus A (IAV), influenza virus B (IBV), parainfluenza viruses (PIV) 1, 2, 3, 4, respiratory syncytial virus (RSV), and coupled enterovirus and rhinovirus (EV/RV) were extracted from the respiratory specimens of paediatric patients in Hong Kong from January 2015 to February 2024. The subjects were stratified into five age groups.
Parasit Vectors
November 2024
Division of Life Sciences, Korea Polar Research Institute, Incheon, Republic of Korea.
BMC Pediatr
November 2024
Department of Respiratory Medicine, National Clinical Research Center of Respiratory Disease, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, NO.56, Nanlishi Road, Beijing, 100045, P. R. China.
Epidemiol Infect
November 2024
Biodesign Center for Environmental Health Engineering, Biodesign Institute, Arizona State University, Tempe, AZ85287, USA.
By coupling long-range polymerase chain reaction, wastewater-based epidemiology, and pathogen sequencing, we show that adenovirus type 41 hexon-sequence lineages, described in children with hepatitis of unknown origin in the United States in 2021, were already circulating within the country in 2019. We also observed other lineages in the wastewater, whose complete genomes have yet to be documented from clinical samples.
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