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ProteomicsSystematic mapping of the adipocyte plasma membrane proteome reveals KCC1 and PIT2 as novel insulin-responsive transporters
The plasma membrane (PM) is a dynamic interface that integrates environmental cues with cellular responses. Insulin is known to remodel the PM primarily by stimulating the translocation of glucose transporter type 4 (GLUT4), but the full scope of this regulation remains poorly defined. Here, we perf...
ORGANISM(S): Mus musculus (Mouse) 
2026-03-23 | PXD068305 | Pride
ProteomicsDeletion of the mitochondrial peptidase miPEP in adipose tissue protects against obesity and insulin resistance by increasing adaptive thermogenesis
Mitochondria are pivotal for cellular metabolism, serving as sources and targets of nutrient intermediates from converging metabolic pathways. Here, we demonstrate that insulin resistance leads to a marked alteration in the mitochondrial proteome of adipocytes. Analysis across multiple insulin resis...
ORGANISM(S): Mus musculus (Mouse) 
2024-08-10 | PXD051606 | Pride
Insulin resistance Mipep Thermogenesis Adipose Mitochondria 
ProteomicsAkt phosphorylates insulin receptor substrate (IRS) to limit PI3K-mediated PI(3,4,5)P3 synthesis
The phosphoinositide 3-kinase (PI3K)-Akt network is tightly controlled by feedback mechanisms that regulate signal flow and ensure signal fidelity. Here, we show that Akt itself engages negative feedback by phosphorylating insulin receptor substrate (IRS) 1 and 2 on a number of residues. Mechanistic...
ORGANISM(S): Mus musculus (Mouse) 
2021-07-14 | PXD023441 | Pride
Irs1 Signal transduction Pi3k Phosphorylation Akt Irs2 
ProteomicsHuman adipose insulin resistance
Adipocytes play a major role in whole body fuel homeostasis. Integrated proteomic analysis of adipose from insulin resistant versus healthy humans or mice or in 3T3-L1 adipocytes revealed defects in the mevalonate/coenzyme Q (CoQ) biosynthesis pathway as a unifying feature of adipocyte insulin resis...
ORGANISM(S): Homo sapiens (Human) 
2018-02-09 | PXD006891 | Pride
Human obese adipose tissue insulin resistance 
ProteomicsProteomic analysis of adipocyte insulin resistance
Insulin resistance is a major risk factor for human metabolic diseases including type 2 diabetes, cardiovascular diseases and some cancers. We analysed the proteome analyses across in vitro and in vivo models of insulin resistance to find common features of insulin resistance and identified lower e...
ORGANISM(S): Mus musculus (Mouse) 
2018-02-07 | PXD005128 | Pride
Insulin resistance Mouse Adipocyte Adipose tissue Orbitrap Lc-ms/ms 
ProteomicsGlobal redox proteome and phosphoproteome analysis reveals novel mode of Akt regulation
A major knowledge gap in cell signalling is defining the crosstalk between multiple types of post-translational modification (PTM). Here, we take a multi-omic approach (redox proteome, phosphoproteome and total proteome) to delineate signalling networks in adipocytes modulated by reactive oxygen spe...
ORGANISM(S): Homo sapiens (Human) Mus musculus (Mouse) 
2019-12-10 | PXD011525 | Pride
Phosphoproteome Akt Crosstalk Redox proteome 
ProteomicsOptimising sample preparation of the plasma peptidome
We further expanded on previous optimizations to isolate the plasma peptidome and compared various methods to maximize identifications with speed and ease. Previous studies have reported loss of polypeptides binding to high abundant proteins during depletion strategies. We hypothesized that rapid c...
ORGANISM(S): Homo sapiens (Human) 
2017-10-09 | PXD007191 | Pride
Peptidomics Plasma Sample preparation 
ProteomicsProteomic analysis of L6 myoblasts treated with C-terminal transgelin peptides
To investigate bioactivity of peptides identified in human plasma, we treated L6 myoblasts in vitro with a synthetic C-terminal peptide from TAGLN spanning amino acids 179-200, or a synthetic C-terminal peptide from TAGLN2 spanning amino acids 178-199 (1 µg/mL; 7 days), and compared the treatments t...
ORGANISM(S): Rattus norvegicus (Rat) 
2017-11-21 | PXD007176 | Pride
Peptidomics Myoblasts Proteomics 
ProteomicsMultiplexed temporal quantification of the human plasma peptidome
The plasma peptidome contains the entire complement of low molecular weight endogenous peptides derived from secretion, protease activity and post-translational modifications and is a rich source of biomarkers and novel bioactives. To examine the utility of peptidomics we have examined the effects o...
ORGANISM(S): Homo sapiens (Human) 
2017-11-21 | PXD004781 | Pride
Peptidomics Exercise Peptidome Plasma 
UnknownAkt phosphorylates insulin receptor substrate to limit PI3K-mediated PIP3 synthesis.
Not available
S-EPMC8277355 | biostudies-literature
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