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PXD001906

PXD001906 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleHuman Treg LC-MSMS - Foxp3 drives oxidative phosphorylation and protection from lipotoxicity
DescriptionRegulatory T cells (Treg) have been shown to adopt a catabolic metabolic programme with increased capacity for fatty acid oxidation fuelled oxidative phosphorylation (OXPHOS). The role of Foxp3 in this metabolic shift is poorly understood. Here we show that Foxp3 was sufficient to induce a significant increase in the spare respiratory capacity of the cell, the extra OXPHOS capacity available to a cell to meet increased demands on energy in response to work. Foxp3-expressing cells were enhanced in their ability to utilise palmitate for respiration and, in addition, the activity of electron transport complexes I, II and IV were enhanced following Foxp3 expression. Foxp3 also imparts a selective advantage in ATP generation capacity, one that might be exploited as a source of adenosine for functional immunomodulation. In order to explore possible mechanisms for these differences in metabolism we conducted a quantitative proteomics study to compare the contribution of TGFβ and the transcription factor Foxp3 to the Treg proteome. We used quantitative mass spectrometry to examine differences between proteomes of nuclear and cytoplasmic Foxp3-containing CD4+ T cells from various sources with Foxp3- activated CD4 T cells, as well as Treg from human peripheral blood. Gene set enrichment analysis of our proteomic datasets demonstrated that Foxp3 expression is associated with a significant up regulation of several members of the mitochondrial electron transport chain. Not only does Foxp3 influence genes directly concerned with immune function, but also with the energy generating functions of Treg.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_04:23:15.133.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterDuncan Howie
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentLTQ Orbitrap Velos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02015-03-12 02:29:03ID requested
12017-02-15 12:06:05announced
22024-10-22 04:23:18announced2024-10-22: Updated project metadata.
Publication List
Howie D, Cobbold SP, Adams E, Ten Bokum A, Necula AS, Zhang W, Huang H, Roberts DJ, Thomas B, Hester SS, Vaux DJ, Betz AG, Waldmann H, Foxp3 drives oxidative phosphorylation and protection from lipotoxicity. JCI Insight, 2(3):e89160(2017) [pubmed]
10.1172/jci.insight.89160;
Keyword List
curator keyword: Biomedical
submitter keyword: Human T cell Treg Foxp3 LC-MSMS
Contact List
Duncan Howie
contact affiliationOxford University, Sir William Dunn School of Pathology, Oxford
contact emailduncan.howie@path.ox.ac.uk
lab head
Duncan Howie
contact affiliationOxford University
contact emailduncan.howie@path.ox.ac.uk
dataset submitter
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Dataset FTP location
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PRIDE project URI
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