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PXD028185 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleMitochondrial inorganic polyphosphate (polyP) is a contributor towards maintaining cellular bioenergetics in SH-SY5Y cells: a proteomics and metabolomics approach
DescriptionInorganic polyphosphate (polyP) is an ancestral, ubiquitous, and well-conserved polymer, which is present in all the studied organisms. It is formed by individual subunits of orthophosphate which are linked together by bonds structurally similar and isoenergetic to those found in ATP. While the metabolism and the physiological roles of polyP in some organisms, including bacteria and yeast, have already been described, the exact role of this polymer in mammalian physiology remains still poorly explored. In these organisms, polyP shows a co-localization with mitochondria. Accordingly, its role as a key regulator of bioenergetics has already been demonstrated by our group and others. Here, using Wild-type (Wt) and MitoPPX (cells enzymatically depleted of mitochondrial polyP) SH-SY5Y cells, we conducted a comprehensive study of the status of cellular physiology, using proteomics and metabolomics approaches. Our results suggested a clear dysregulation of mitochondrial physiology, especially of bioenergetics, in MitoPPX cells when compared with Wt. Interestingly, the effects induced by the enzymatically depletion of polyP are similar to those present in the mitochondrial dysfunction which is observed in neurodegenerative disorders and in neuronal aging. In fact, the role of polyP as a component of the cellular stress responses has already been proposed in diverse organisms, including mammals. Thereafter, our data could contribute to place the metabolism of mitochondrial polyP as a valid and innovative pharmacological target in these conditions.
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportSupported dataset by repository
PrimarySubmitterGennifer Merrihew
SpeciesList scientific name: Homo sapiens; NCBI TaxID: 9606;
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02021-08-31 22:25:17ID requested
12022-01-05 14:55:42announced
22022-03-16 12:12:06announced: Added publication
Publication List
Guitart-Mampel M, Urquiza P, Carnevale Neto F, Anderson JR, Hambardikar V, Scoma ER, Merrihew GE, Wang L, MacCoss MJ, Raftery D, Peffers MJ, Solesio ME, Mitochondrial Inorganic Polyphosphate (polyP) Is a Potent Regulator of Mammalian Bioenergetics in SH-SY5Y Cells: A Proteomics and Metabolomics Study. Front Cell Dev Biol, 10():833127(2022) [pubmed]
Keyword List
submitter keyword: mitochondria, mitochondrial bioenergetics, OXPHOS, inorganic polyphosphate, polyP, metabolomics, proteomics, data-independent acquisiton
Contact List
Michael MacCoss
contact affiliationUniversity of Washington
contact emailmaccoss@uw.edu
lab head
Gennifer Merrihew
contact affiliationUniversity of Washington
contact emailgenn@uw.edu
dataset submitter
Full Dataset Link List
Panorama Public dataset URI