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PXD015448 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleAntibody-free multiplex measurement of 23 human cytokines in primary cell culture secretome using targeted multiple reaction monitoring mass spectrometry
DescriptionCytokines are key mediators of inflammation that commonly serve as biomarkers to monitor immune responses and inflammatory disease. Cytokines are commonly measured by immunoassays, which have limited multiplexing capacity, are costly and can exhibit cross-reactivity. Although multiple reaction monitoring (MRM) mass spectrometry is a cost-effective method for multiplex measurement of peptides, the ability to detect the relatively low level of secreted cytokines in a complex biological matrix without extensive processing remains to be fully evaluated. We used human keratinocyte conditioned media as an experimental system to evaluate the assay linearity, reproducibility and limit of detection of a MRM assay targeting 23 human cytokines with and without prior 2D chromatographic separation. Without antibody enrichment or immunodepletion of high abundant proteins, the MRM assay could detect 21 cytokines by two or more unique peptides, and two cytokines by a single unique peptide. In a serum-free matrix, the limit of detection and quantification for the 79 monitored cytokine peptides ranged from 7 to 507pg/mL and 24 to 1689 pg/mL, respectively. The presence of serum reduced assay sensitivity however this could be compensated for by high-pH reversed-phase fractionation. Furthermore, the assay shows good replicate consistency with 8% intra- and 12% inter-day coefficient of variations, with increases in assay variability by circa 10% when a pre-fractionation step is included. In summary, our results show potential utility of a multiplex cytokine MRM for routine measurement of secreted cytokines in cellular experiments. Additional enrichment steps will be required in high complexity matrices such as serum.
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportSupported dataset by repository
PrimarySubmitterAlok Shah
SpeciesList scientific name: Homo sapiens; NCBI TaxID: 9606;
Instrument6490 Triple Quadrupole LC/MS
Dataset History
RevisionDatetimeStatusChangeLog Entry
02019-09-14 17:06:38ID requested
12020-02-19 20:09:29announced
Publication List
Krueger A, Stoll T, Shah AK, Sinha R, Frazer IH, Hill MM, Antibody-Free Multiplex Measurement of 23 Human Cytokines in Primary Cell Culture Secretome Using Targeted Mass Spectrometry. Anal Chem, 92(5):3742-3750(2020) [pubmed]
Keyword List
submitter keyword: Cytokine, Cell secretome, Targeted mass spectrometry
Contact List
Michelle Hill
contact affiliationThe University of Queensland, Translational Research Institute, and QIMR Berghofer Medical Research Institute, Brisbane, Australia
contact emailmichelle.hill@qimrberghofer.edu.au
lab head
Alok Shah
contact affiliationQIMR Berghofer Medical Research Institute, Brisbane, Australia
contact emailalok.shah@qimrberghofer.edu.au
dataset submitter
Full Dataset Link List
Panorama Public dataset URI