Huang L, Tang W, He L, Li M, Lin X, Hu A, Huang X,. Engineered probiotic Escherichia coli elicits immediate and long-term protection against influenza A virus in mice. Nat Commun. 2024 Aug 9;15(1):6802
Influenza virus infection remains a major global health problem and requires a universal vaccine with broad protection against different subtypes as well as a rapid-response vaccine to provide immediate protection in the event of an epidemic outbreak. Here, we show that intranasal administration of probiotic Escherichia coli Nissle 1917 activates innate immunity in the respiratory tract and provides immediate protection against influenza virus infection within 1 day. Based on this vehicle, a recombinant strain is engineered to express and secret five tandem repeats of the extracellular domain of matrix protein 2 from different influenza virus subtypes. Intranasal vaccination with this strain induces durable humoral and mucosal responses in the respiratory tract, and provides broad protection against the lethal challenge of divergent influenza viruses in female BALB/c mice. Our findings highlight a promising delivery platform for developing mucosal vaccines that provide immediate and sustained protection against respiratory pathogens.
See Also:
Latest articles in those days:
- Phylogenetic Analysis of Highly Pathogenic Avian Influenza H7 Viruses in Australia and New Zealand Suggests Local Viral Evolution 19 hours ago
- AI-Powered Identification of Human Cell Surface Protein Interactors of the Hemagglutinin Glycoprotein of High-Pandemic-Risk H5N1 Influenza Virus 19 hours ago
- Seasonal Influenza Vaccination Uptake and Intentions Among Nursing Students in Hong Kong 19 hours ago
- Intranasal Mosaic H1N1 Live Attenuated Influenza Vaccine Elicits Broad Cross-Reactive Immunity and Protection Against Group 1 and 2 Influenza A Viruses 19 hours ago
- Changing Landscape of Pediatric Influenza in Northern Mexico: A Comparative Clinical and Virological Study 19 hours ago
[Go Top] [Close Window]


