title: Analysis of potential transcriptomic biomarkers for Huntington's disease in peripheral blood.
abstract: Highly quantitative biomarkers of neurodegenerative disease remain an important need in the urgent quest for disease-modifying therapies. For Huntington's disease (HD), a genetic test is available (trait marker), but necessary state markers are still in development. In this report, we describe a large battery of transcriptomic tests explored as state biomarker candidates. In an attempt to exploit the known neuroinflammatory and transcriptional perturbations of disease, we measured relevant mRNAs in peripheral blood cells. The performance of these potential markers was weak overall, with only one mRNA, immediate early response 3 (IER3), showing a modest but significant increase of 32% in HD samples compared with controls. No statistically significant differences were found for any other mRNAs tested, including a panel of 12 RNA biomarkers identified in a previous report [Borovecki F, Lovrecic L, Zhou J, Jeong H, Then F, Rosas HD, Hersch SM, Hogarth P, Bouzou B, Jensen RV, et al. (2005) Proc Natl Acad Sci USA 102:11023-11028]. The present results may nonetheless inform the future design and testing of HD biomarker strategies.
authors.affiliation: Laboratory of Functional Neurogenomics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
authors.forename: Heike
authors.initials: H
authors.lastname: Runne
authors.forename: Alexandre
authors.initials: A
authors.lastname: Kuhn
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Wild
authors.forename: Wirahpati
authors.initials: W
authors.lastname: Pratyaksha
authors.forename: Mark
authors.initials: M
authors.lastname: Kristiansen
authors.forename: Jeremy D
authors.initials: JD
authors.lastname: Isaacs
authors.forename: Etienne
authors.initials: E
authors.lastname: Régulier
authors.forename: Mauro
authors.initials: M
authors.lastname: Delorenzi
authors.forename: Sarah J
authors.initials: SJ
authors.lastname: Tabrizi
authors.forename: Ruth
authors.initials: R
authors.lastname: Luthi-Carter
mesh_terms: D015415:Biomarkers / Q000097:blood; D005786:Gene Expression Regulation; D006801:Humans; D006816:Huntington Disease / Q000097:blood* / Q000235:genetics*; D007425:Intracellular Membranes / Q000378:metabolism*; D008214:Lymphocytes / Q000378:metabolism*; D020411:Oligonucleotide Array Sequence Analysis; D012313:RNA / Q000235:genetics; D014158:Transcription, Genetic / Q000235:genetics*
chemical_list: D015415:Biomarkers; D012313:RNA