Proteomics

Dataset Information

21

Human cerebrospinal fluid proteoform profiling


ABSTRACT: . In this study, we have investigated the capacities of last-generation Ultra-High Resolution Q-Tof systems to deal with high complexity intact protein samples, have developed the tools to process the intact protein data in an existing label-free quantification pipeline, and have evaluated the approach on a cohort of patients suffering from neurodegenerative disease in a proof-of concept study. Several proteoforms have been pointed out for their capacity to distinguish Alzheimer disease patients from patients suffering from other neurodegenerative disease and have been characterized.

INSTRUMENT(S): impact II

ORGANISM(S): Homo sapiens  

TISSUE(S): Cerebrospinal Fluid

DISEASE(S): Alzheimer's Disease

SUBMITTER: Pierre-Olivier SCHMIT  

PROVIDER: PXD005314 | Pride | 2018-04-05

REPOSITORIES: Pride

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Publications


Thanks to proteomics investigations, our vision of the role of different protein isoforms in the pathophysiology of diseases has largely evolved. The idea that protein biomarkers like tau, amyloid peptides, ApoE, cystatin, or neurogranin are represented in body fluids as single species is obviously over-simplified, as most proteins are present in different isoforms and subjected to numerous processing and post-translational modifications. Measuring the intact mass of proteins by MS has the advan  ...[more]

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