Final Report Summary - EUROGLYCANET (Congenital disorders of glycosylation: a European network for the advancement of research, diagnosis and treatment of a growing group of rare disorders)
EUROGLYCANET installed referral centres in many different European countries. These were important for the recruitment of samples and the assistance to local physicians and families facing these diseases. The different laboratories involved in the diagnostic carousel were able to introduce novel methods, such as the Isoelectric focusing (IEF) of apolipoprotein (ApoCIII) for the identification of O-glycan defects and new technologies such as Surface-enhanced laser desorption / ionisation - time of flight - mass spectrometer (SELDI-TOF-MS) and Matrix-assisted laser desorption / ionisation - mass spectrometer (MALDI-MS) for the structural analysis of N-glycans, as well as mutation analysis for a plethora of novel genes. In general, more than 20 000 patients with unexplained diseases were screened for a glycosylation defect. Several new types of CDG were also discovered. From this viewpoint, it is certain that the activities of the network contributed both to the detection and diagnosis of CDG patients and to the raise of awareness and knowledge of these diseases amongst the medical community. However, due to the complex nature of the glycosylation pathways, pinpointing the genetic defect in all patients was not trivial. For the same reason, progress towards the development of therapies was slow.
More than 200 unsolved cases were transferred to the research laboratories for further investigation. They represented a rich source for the identification of novel defects and for the elucidation of basic mechanisms of glycosylation. The network was committed to solving these cases as soon as possible for the sake of the patients and their families.