Antibacterial vaccine against acinetobacter baumannii infection


In this invention, we conjugated pseudaminic acid which is the surface glycan of A. baumannii to a carrier protein CRM197. The resulted conjugation worked as a bacteria vaccine which could stimulate high immune responses in mice and protected the vaccinated mice from infections caused by Pseproducing A. baumannii.

  • Antibacterial vaccine against acinetobacter baumannii infection
Commercialisation opportunities
collaboration project, licensing
Problem addressed

Acinetobacter baumannii was listed as “priority pathogens" by the World Health Organization (WHO) due to its multidrug-resistance. It is lack of effective drugs for treating acinetobacter baumannii infection.

  • Through design and synthesis of pseudaminic acid glycoconjugates, a pseudaminic acid-based vaccine against Gram-negative pathogens was developed.
Key impact
  • It is a efficient synthetic carbohydrate vaccine against gram-negative bacteria infection.
  • It is expected that Pse-based vaccines developed by this invention can be applied on other Pse-bearing Gram-negative bacteria such as Pseudomonas aeruginosa and Campylobacter jejuni.
  • Acinetobacter baumannii infection
  • Pseudomonas aeruginosa infection
  • Campylobacter jejuni infection

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