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- Title
Plasma levels of soluble TREM2 and neurofilament light chain in TREM2 rare variant carriers.
- Authors
Ashton, Nicholas J.; Suárez-Calvet, Marc; Heslegrave, Amanda; Hye, Abdul; Razquin, Cristina; Pastor, Pau; Sanchez-Valle, Raquel; Molinuevo, José L.; Visser, Pieter Jelle; Blennow, Kaj; Hodges, Angela K.; Zetterberg, Henrik
- Abstract
Background: Results from recent clinical studies suggest that cerebrospinal fluid (CSF) biomarkers that are indicative of Alzheimer's disease (AD) can be replicated in blood, e.g. amyloid-beta peptides (Aβ42 and Aβ40) and neurofilament light chain (NFL). Such data proposes that blood is a rich source of potential biomarkers reflecting central nervous system pathophysiology and should be fully explored for biomarkers that show promise in CSF. Recently, soluble fragments of the triggering receptor expressed on myeloid cells 2 (sTREM2) protein in CSF have been reported to be increased in prodromal AD and also in individuals with TREM2 rare genetic variants that increase the likelihood of developing dementia. Methods: In this study, we measured the levels of plasma sTREM2 and plasma NFL using the MesoScale Discovery and single molecule array platforms, respectively, in 48 confirmed TREM2 rare variant carriers and 49 non-carriers. Results: Our results indicate that there are no changes in plasma sTREM2 and NFL concentrations between TREM2 rare variant carriers and non-carriers. Furthermore, plasma sTREM2 is not different between healthy controls, mild cognitive impairment (MCI) or AD. Conclusion: Concentrations of plasma sTREM2 do not mimic the recent changes found in CSF sTREM2.
- Subjects
CYTOPLASMIC filaments; MILD cognitive impairment; ALZHEIMER'S disease; CENTRAL nervous system; SINGLE molecules; MONOCLONAL gammopathies; CYTOSKELETAL proteins
- Publication
Alzheimer's Research & Therapy, 2019, Vol 11, Issue 1, pN.PAG
- ISSN
1758-9193
- Publication type
Article
- DOI
10.1186/s13195-019-0545-5