Chloe Qingzhou Huang, Rory A Hills, George W Carnell, Sneha Vishwanath, Ernest T Aguinam, Andrew C Y Chan, Phil Palmer, Laura O'Reilly, Paul Tonks, Nigel Temperton, Simon D W Frost, Laurence S Tiley, Mark R Howarth, Jonathan L Heeney
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Computationally designed haemagglutinin with nanocage plug-and-display elicits pan-H5 influenza vaccine responses.
The increasing spread of highly pathogenic avian influenza (HPAI) A/H5 viruses poses a pandemic threat. Circulating clade 2.3.4.4b viruses have demonstrated rapid transcontinental dissemination, extensive reassortment, epizootic spread and potential sustained mammal-to-mammal transmission, signifying a heightened risk of becoming a human pathogen of high consequence. A broadly protective, future-proof vaccine against multiple clades of H5 influenza is urgently needed for pandemic preparedness. Here, we combine two novel vaccine technologies to generate a Digitally Immune Optimised and Selected H5 antigen (DIOSvax-H5inter) displayed multivalently on the mi3 nanocage using the SpyTag003/SpyCatcher003 conjugation system. Mice immunized with DIOSvax-H5inter Homotypic Nanocages at low doses demonstrate potent, cross-clade neutralizing antibody and T cell responses against diverse H5 strains. DIOSvax-H5inter Homotypic Nanocages provide a scalable vaccine candidate with the potential for pan-H5 protection against drifted or newly emergent H5 strains. This World Health Organization preferred characteristic is essential for prospective strategic stockpiling in the pre-pandemic phase.
期刊介绍：
Emerging Microbes & Infections is a peer-reviewed, open-access journal dedicated to publishing research at the intersection of emerging immunology and microbiology viruses.
The journal's mission is to share information on microbes and infections, particularly those gaining significance in both biological and clinical realms due to increased pathogenic frequency. Emerging Microbes & Infections is committed to bridging the scientific gap between developed and developing countries.
This journal addresses topics of critical biological and clinical importance, including but not limited to:
- Epidemic surveillance
- Clinical manifestations
- Diagnosis and management
- Cellular and molecular pathogenesis
- Innate and acquired immune responses between emerging microbes and their hosts
- Drug discovery
- Vaccine development research
Emerging Microbes & Infections invites submissions of original research articles, review articles, letters, and commentaries, fostering a platform for the dissemination of impactful research in the field.
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