Sialic Acid Mimetics to Target the Sialic Acid–Siglec Axis

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Christian Büll (photo up) and Torben Heise, PhD students in the Adema and Boltje research groups respectively, published a key opinion paper in TIBS on the therapeutic potential of a novel regulatory pathway in immune cells. 

Sialic acid sugars are vital regulators of the immune system through binding to immunosuppressive Siglec receptors on immune cells. Aberrant sialic acid-Siglec interactions are associated with an increasing number of immune related pathologies including infection, autoimmunity and cancer. Therefore, the sialic acid-Siglec axis is an emerging target to prevent or affect the course of several diseases. Chemical modifications of the natural sialic acid ligands have led to sialic acid mimetics (SAMs) with improved binding affinity and selectivity towards Siglecs. Recent progress in glycobiotechnology allows the presentation of these SAMs on nanoparticles, polymers and on living cells via bioorthogonal synthesis. These developments now enable the detailed study of the sialic acid-Siglec axis including its therapeutic potential as an immune modulator.

Publication: 
Büll C, Heise T, Adema GJ, Boltje TJ. Sialic acid mimetics to target the sialic acid-Siglec axis. Trends in Biochemical Sciences. 2016

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