- It can inhibit the function of immune system receptors called C-type lectins such as MBL (Mannose-binding lectin) which are known to bind to a sugar known as mannose that is present in the structure of infectious fungal bacterial cell walls. Unlike glucose, mannose does not exist in mammals as a free sugar in the blood.
- The loss of MBL function may also predispose the body to chronic inflammatory diseases, since MBL is involved in the processing and clearance of apoptotic cells (dying cells).
- A number of C-type lectins tat can be affected by raised glucose levels, including MBL, but also including immune cell surface receptors DC-SIGN and DC-SIGNR, are found in key parts of our circulation and vascular system such as plasma, monocytes, platelets and endothelial cells that line blood vessels. Inhibiting the function of these key molecules in those settings could contribute to diabetic cardiovascular and renal complications.
Warwick Medical School researcher Dr Daniel Mitchell said:
The research will be published in the journal Immunobiology. The full list of authors is: Dr Daniel Mitchell, Dr Harpal S. Randeva, Rebecca Ilyas, Bee K. Tan, and Daniel Zehnder of the Clinical Sciences Research Institute, University of Warwick; Hendrik Lehnert of the University of Warwick and the First Medical Department, University of Lübeck, Germany; Russell Wallis of the Department of Infection and Immunity, University of Leicester; Elizabeth J. Soilleux of the Nuffield Department of Clinical Laboratory Sciences, University of Oxford; Robert B. Sim of the MRC Immunochemistry Unit, University of Oxford, UK ; and Paul Townsend of the Infection, Inflammation and Immunology Division, University of Southampton.