ACADEMIC NEWSLETTER AUGUST 2014 In this newsletter: Alzheimer’s disease in Down syndrome conference Recruitment update LonDownS’ news CSO training LonDownS contact details Professor John Hardy, Head of Molecular Neuroscience at UCL Institute of Neurology and the lead investigator on the genetics stream of the LonDownS study has been awarded the Dan David Prize for his work on APP, the amyloid gene encoding the amyloid precursor protein. As most of you are aware, the APP gene is triplicated in DS. John was the first to discover the link between APP, AD and DS (Hardy & Allsop, 1991). This is a prestigious, international recognition that awards US$1 million for achievements having an outstanding scientific, technological, cultural or social impact on society. Congratulations, John! Alzheimer’s Disease in Down Syndrome: from Molecules to Cognition. Wellcome Trust Scientific Conferences, Hinxton, UK A fulfilling and exciting time was had by all at our recent conference ‘Alzheimer’s Disease in Down Syndrome: from Molecules to Cognition’. The crux of this meeting was for communication, making new contacts and making new, international collaborations at the highest level between researchers in the field. Down syndrome research is gathering increasing importance and pace as genetic analysis technologies advance and our understanding of dementia progresses. The special case of dementia in Down syndrome is thus beginning to receive more attention in the research community with consortia such as The London Down Syndrome Consortium existing solely to investigate this LONDOWNS RECRUITMENT UPDATE We are delighted with the way recruitment of adults for the cognitive assessments is going. Together, we have seen about 120 participants so far which is a substantial amount of our 350 adults target. Our sites are doing a great job of recruitment. We have 15 open sites across England at the moment with several more in the pipeline that are due to open soon. Our top recruiter so far is North East London NHS Foundation Trust so congratulations to Dr Bini Thomas, Angeliki Kassari and Sheetal Dangey and a big thank you to Fiona Horton for excellent R&D management in the Trust. Thank you to all our sites for your continued hard work and interest in the study. Next CSO and Research Nurse training dates SUBSTANTIAL AMENDMENT We have received approval for a substantial amendment to our project to our REC. We are amending the protocol and several of the information sheets. This amendment should be cascaded down to you via CSP shortly We have decided to remove the skin biopsy from our general information and consent forms and instead now have separate forms for this. We haven’t yet done any biopsies and think it is unlikely we will do any. Thursday 18th September 2014. Charles Bell House, UCL. All day Thursday 30th October 2014. Charles Bell House, UCL. All day If you or any new members of your team need to book training, please e-mail Tommy (t.coyle@ucl.ac.uk) We have also added some information to the protocol about why we would now like blood and saliva samples. We will be looking for biomarkers in the participants’ blood and using this Welcome to two new team members. Rosalyn Hithersay has joined us as a Research Assistant and PhD student and will be doing assessments with our participants. Andrew Balgobin has joined us to help with the growing amount of administration associated with the project. Welcome to both of you! Contact details for Ros and Andrew are below. LonDownS Staff at UCL Principal Investigator: Andre Strydom a.strydom@ucl.ac.uk We have a new look, easy-read website: www.ucl.ac.uk/london-down-syndrome-consortium Study Co-ordinator: Tamara al Janabi t.al-janabi@ucl.ac.uk Research Associate: Carla Startin Carla.startin.09@ucl.ac.uk Research Assistants: Sarah Hamburg: s.hamburg@ucl.ac.uk Ros Hithersay: r.hithersay@ucl.ac.uk Administration: Tommy Coyle: t.coyle@ucl.ac.uk Andrew Balgobin: a.balgobin@ucl.ac.uk Tel: 0207 679 9314 Richard Dawkins in the news As many of you may have heard, Richard Dawkins has been Tweeting again; this time about Down syndrome. Many of the ‘facts’ he cited were incorrect. For a scientificallyaccurate summary of the facts, see this article in the NY Times, written by our collaborator, Jamie Edgin: http:// www.nytimes.com/2014/08/29/opinion/the What happens to the hair samples we send to Queen Mary, University of London? DOWN SYNDROME RESEARCH BULLETIN Cognitive functioning in relation to brain amyloid-β in healthy adults with Down syndrome. Hartley et al; Brain. 2014 Jul 2. [Epub ahead of print]. This study used PET scans to look at how much amyloid people with Down syndrome in their brains. Amyloid plaques are related to Alzheimer's disease in the general population, and are found in everyone with Down syndrome after age 35 (this is one of the reasons that Alzheimer's is thought to be so common in people with Down syndrome). The study found that as people with Down syndrome got older they had more amyloid, but the amount of amyloid people had was not related to their cognitive abilities. This suggests that people with Down syndrome show some protection against the presence of amyloid in their brains. Role of astroglia in Down's syndrome revealed by patient-derived human-induced pluripotent stem cells. Chen et al; Nat Commun. 2014 Jul 18;5:4430. doi: 10.1038/ncomms5430.This paper showed that the astrocytes grown from people with Down syndrome's cells may impair neuronal development and result in neuronal death. This effect may be reversed using the antibiotic minocycline. This paper suggests the importance of astrocytes in the brains of people with Down syndrome, and suggests that minocycline may offer benefits for this population. Domains of genome-wide gene expression dysregulation in Down’s syndrome Letourneau et al; NATURE 508, 345–350 (17 April 2014) doi:10.1038/nature13200. This study compared the gene expression from foetal monozygotic twins, one of whom had Down syndrome while the other did not. Many genes showed a difference in expression, including some not found on chromosome 21. This suggests that the presence of an extra copy of chromosome 21 in people with Down syndrome can interact with gene expression of genes not found on chromosome 21, suggesting that it is not just the expression of chromosome 21 genes that is affected in Down syndrome. Translating dosage compensation to trisomy 21, Jiang et al, 2013 (Nature). In this study the authors inactivated one copy of chromosome 21 in the cells of people with Down syndrome, resulting in the cells having two copies of chromosome 21 which expressed genes compared to the three copies found in people with Down syndrome. Inactivating one copy of chromosome 21 may be one of the first steps towards gene therapy in people with Down syndrome. NIH Down Syndrome Consortium launched in 2011: http://downsyndrome.nih.gov/ Can Down Syndrome Be Treated? Underwood, Science 28 February 2014: Vol. 343 no. 6174 pp. 964-967 . This article discusses possible treatments which may help people with Down syndrome.