TY - JOUR
T1 - Plasma levels of soluble TREM2 and neurofilament light chain in TREM2 rare variant carriers
AU - Ashton, Nicholas J.
AU - Suárez-Calvet, Marc
AU - Heslegrave, Amanda
AU - Hye, Abdul
AU - Razquin, Cristina
AU - Pastor, Pau
AU - Sanchez-Valle, Raquel
AU - Molinuevo, José L.
AU - Visser, Pieter Jelle
AU - Blennow, Kaj
AU - Hodges, Angela K.
AU - Zetterberg, Henrik
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85075786544&origin=inward
UR - https://www.ncbi.nlm.nih.gov/pubmed/31779670
U2 - https://doi.org/10.1186/s13195-019-0545-5
DO - https://doi.org/10.1186/s13195-019-0545-5
M3 - Article
C2 - 31779670
SN - 1758-9193
VL - 11
JO - Alzheimer's Research and Therapy
JF - Alzheimer's Research and Therapy
IS - 1
M1 - 94
ER -