Back

Risk-free polio vaccine: Recombinant expression systems for production of stabilised virus-like particles

Sherry, L.; Bahar, M. W.; Porta, C.; Fox, H.; Grehan, K.; Nasta, V.; Duyvesteyn, H. M.; de Colibus, L.; Marsian, J.; Murdoch, I.; Ponndorf, D.; Kim, S.-R.; Shah, S.; Carlyle, S.; Swanson, J. J.; Matthews, S.; Nicol, C.; Lomonossoff, G. P.; Macadam, A. J.; Fry, E. E.; Stuart, D. I.; Stonehouse, N. J.; Rowlands, D. J.

2024-05-13 microbiology
10.1101/2024.05.13.593909 bioRxiv
Show abstract

Polioviruses have caused crippling disease in humans for centuries, prior to the successful development of vaccines in the mid-1900s, which dramatically reduced disease prevalence. Continued use of these vaccines, however, threatens ultimate disease eradication and achievement of a polio-free world. Virus-like particles (VLPs) that lack a viral genome represent a safer potential vaccine, although they require particle stabilization. Using our previously established genetic techniques to stabilize the structural capsid proteins, we demonstrate production of poliovirus VLPs of all three serotypes, from four different recombinant expression systems. We compare the antigenicity, thermostability and immunogenicity of these stabilized VLPs against the current inactivated polio vaccine, demonstrating equivalent or superior immunogenicity. Structural analyses of these recombinant VLPs provide a rational understanding of the stabilizing mutations and the role of potential excipients. Collectively, we have established these poliovirus stabilized VLPs as viable next-generation vaccine candidates for the future.

Matching journals

The top 2 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.