Plasma Tau Variants Detected by a Novel Anti-Tau Monoclonal Antibody: A Potential Biomarker for Alzheimer’s Disease
Background: A major drawback in Alzheimer's disease (AD) is the lack of validated biomarkers for routine clinical diagnostic. We have reported earlier a novel blood biomarker, named Alz-tau (R), based on variants of platelet tau. This marker evaluates the ratio of high molecular weight tau (HMWtau) and the low molecular weight (LMWtau) tau. Objective: To analyze a potential novel source of antigen for Alz-tau (R), plasma tau, detected by immunoreactivity with the novel monoclonal antibody, tau51. Methods: We evaluated tau variants in plasma precipitated with ammonium sulfate from 36 AD patients and 15 control subjects by western blot with this novel monoclonal antibody. Results: The HMW/LMWtau ratio was statistically different between AD patients and controls. Conclusions: Plasma tau variants are suitable to be considered as a novel antigen source for the Alz-tau (R) biomarker for AD.
Artículo de publicación ISI
Quote ItemJ Alzheimers Dis . 2020;77(2):877-883
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