Dataset Information

Deep plasma proteomics with data-independent acquisition: A fastlane towards biomarkers identification

ABSTRACT: Plasma proteomic is a precious tool in human disease research, but requires extensive sample preparation in order to perform in-depth analysis and biomarker discovery using traditional Data-Dependent Acquisition (DDA). Here, we highlight the efficacy of combining moderate plasma prefractionation and Data-Independent Acquisition (DIA) to significantly improve proteome coverage and depth, while remaining cost- and time-efficient. Using human plasma collected from a 20-patient COVID-19 cohort, our method utilises commonly available solutions for depletion, sample preparation, and fractionation, followed by 3 LC-MS/MS injections for a 360-minutes DIA run time. DIA-NN software was then used for precursor identification, and the QFeatures R package was used for protein aggregation. We detect 1,346 proteins on average per patient, and 2,135 unique proteins across the cohort. Filtering precursors present in under 25% of patients, we still detect 1,231 average proteins and 1,603 unique proteins, indicating robust protein identification. Differential analysis further demonstrates the applicability of this method for plasma proteomic research and clinical biomarker identification. In summary, this study introduces a streamlined, cost- and time-effective approach to deep plasma proteome analysis, expanding its utility beyond classical research environments and enabling larger-scale multi-omics investigations in clinical settings.

INSTRUMENT(S): Orbitrap Exploris 240

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Plasma

DISEASE(S): Covid-19

SUBMITTER: Didier Vertommen

LAB HEAD: Laure Elens

PROVIDER: PXD047901 | Pride | 2024-09-24

REPOSITORIES: Pride

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Deep Plasma Proteomics with Data-Independent Acquisition: Clinical Study Protocol Optimization with a COVID-19 Cohort.

Ward Bradley B Pyr Dit Ruys Sébastien S Balligand Jean-Luc JL Belkhir Leïla L Cani Patrice D PD Collet Jean-François JF De Greef Julien J Dewulf Joseph P JP Gatto Laurent L Haufroid Vincent V Jodogne Sébastien S Kabamba Benoît B Lingurski Maxime M Yombi Jean Cyr JC Vertommen Didier D Elens Laure L

Journal of proteome research 20240819 9

Plasma proteomics is a precious tool in human disease research but requires extensive sample preparation in order to perform in-depth analysis and biomarker discovery using traditional data-dependent acquisition (DDA). Here, we highlight the efficacy of combining moderate plasma prefractionation and data-independent acquisition (DIA) to significantly improve proteome coverage and depth while remaining cost-efficient. Using human plasma collected from a 20-patient COVID-19 cohort, our method util ...[more]

PMID: 39159935

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