Project summary
Although fatigue is a major debilitating symptom in many conditions, we still have no clear insight into its biological basis. This proposal focuses on building the resources to carry out fatigue research in three clinical areas: ME/CFS, lymphoma and stroke. Most fatigue research has been carried out in ME/CFS and this will be our primary focus with the other conditions giving insight into common mechanisms associated with fatigue. Having non-ME/CFS fatigue groups will allow us to focus in on the impact of post exertional malaise on our biomarkers . Using this approach we will be able to identify ME/CFS specific mechanisms which would not be possible if just a healthy control population is used. Our recent metabolomics analysis of two ME/CFS cohorts has emphasised the importance of this approach and the benefit of using a Multiple Sclerosis group as a positive fatigue control. Here we will expand further into two other conditions where fatigue is a major problem for patients.
Our clinical research will involve three European centres and build on existing infrastructure. Pilot treatment interventions will be undertaken in all fatigue groups with blood samples taken for future biomarker discovery projects. Fatigue and movement phone app systems will be established to monitor patients and identify changes in symptoms. We will also study immune dysfunction in ME/CFS in collaboration with pharmaceutical companies. Immune cell function using whole transcriptomic analysis will be carried out on ME/CFS patients with direct in vitro challenges to immune cell function. Importantly SoftCell Biologicals will provide an in-kind contribution to our research (equivalent to $750,000) for whole genome sequencing. This will characterise newly discovered pathogens of chronic illness patients in the blood and provide whole genome sequence data on patients. In addition, pathogenic bacteria and fungi will be cultured from blood samples. We will also carry on our research into disease associated factors in the blood, our current project supported by the ME Association is funded until October 2020. The bio-resources collected during this project will be appropriately stored and made available to future studies, encouraging new investigators and clinicians into the fatigue research area. This is vital if we are to develop ME/CFS and fatigue as a clinical research area.