Universiteit Leiden

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Bacterial glycomimetics: synthesis and applications

This work has described synthetic strategies towards well-defined structures resembling capsular polysaccharide (CPS) fragments, CPS mimics, teichoic acid (TA) fragments as well as a third-generation ring-closing tandem metathesis (RCM) linker to better exploit the potential of automated synthesis.

J. Enotarpi
19 oktober 2023
Thesis in Leiden Repository

The synthesis of diheteroglycan (DHG) fragments of the Gram-positive Enterococcus faecalis have been described and preliminary biological properties shown. CPS-mimics of Neisseria meningitidis A, a Gram-negative bacterium and one of the major causes of bacterial meningitis, could provide an alternative to the inherent instability of current glycoconjugate vaccines. TA fragments presented in this thesis, typical for Gram-positive bacteria, have been equipped with labile D-alanine appendages to further investigate their biological relevance in interactions with the host immune system. A tandem-RCM linker has been developed and tested on a carbohydrate automated synthesizer, providing a proof of concept of its use.

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