Infection's Sweet Tooth: How Glycans Mediate Infection and Disease Susceptibility

Steven L. Taylor, Michael McGuckin, Steven Wesselingh, Geraint B. Rogers

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


Glycans form a highly variable constituent of our mucosal surfaces and profoundly affect our susceptibility to infection and disease. The diversity and importance of these surface glycans can be seen in individuals who lack a functional copy of the fucosyltransferase gene, FUT2. Representing around one-fifth of the population, these individuals have an altered susceptibility to many bacterial and viral infections and diseases. The mediation of host–pathogen interactions by mucosal glycans, such as those added by FUT2, is poorly understood. We highlight, with specific examples, important mechanisms by which host glycans influence infection dynamics, including by: acting as pathogen receptors (or receptor-decoys), promoting microbial stability, altering the physical characteristics of mucus, and acting as immunological markers. We argue that the effect glycans have on infection dynamics has profound implications for many aspects of healthcare and policy, including clinical management, outbreak control, and vaccination policy.

Original languageEnglish
Pages (from-to)92-101
Number of pages10
JournalTrends in Microbiology
Issue number2
Early online date2017
Publication statusPublished - 1 Feb 2018


  • FUT2
  • glycosyltransferase
  • infection susceptibility
  • microbiota
  • viral infection


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