Evidence map›Paper›PMID 25320095›Full record

Trial reportThe Journal of biological chemistry2014

A single mechanism can explain network-wide insulin resistance in adipocytes from obese patients with type 2 diabetes.

Elin Nyman, Meenu Rohini Rajan, Siri Fagerholm, Cecilia Brännmark, Gunnar Cedersund, Peter Strålfors

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Insulin Signaling Pathway Model in Adipocyte Cells.Current pharmaceutical design · 2023
    Article
  5. Article
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  7. Finding new edges: systems approaches to MTOR signaling.Biochemical Society transactions · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Elin NymanFrom the Department of Clinical and Experimental Medicine and.
Meenu Rohini RajanFrom the Department of Clinical and Experimental Medicine and.
Siri FagerholmFrom the Department of Clinical and Experimental Medicine and.
Cecilia BrännmarkFrom the Department of Clinical and Experimental Medicine and.
Gunnar CedersundFrom the Department of Clinical and Experimental Medicine and the Department of Biomedical Engineering, Linköping University, SE58185 Linköping, Sweden.
Peter StrålforsFrom the Department of Clinical and Experimental Medicine and peter.stralfors@liu.se.
Linköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The response to insulin is impaired in type 2 diabetes. Much information is available about insulin signaling, but understanding of the cellular mechanisms causing impaired signaling and insulin resistance is hampered by fragmented data, mainly obtained from different cell lines and animals. We have collected quantitative and systems-wide dynamic data on insulin signaling in primary adipocytes and compared cells isolated from healthy and diabetic individuals. Mathematical modeling and experimental verification identified mechanisms of insulin control of the MAPKs ERK1/2. We found that in human adipocytes, insulin stimulates phosphorylation of the ribosomal protein S6 and hence protein synthesis about equally via ERK1/2 and mTORC1. Using mathematical modeling, we examined the signaling network as a whole and show that a single mechanism can explain the insulin resistance of type 2 diabetes throughout the network, involving signaling both through IRS1, PKB, and mTOR and via ERK1/2 to the nuclear transcription factor Elk1. The most important part of the insulin resistance mechanism is an attenuated feedback from the protein kinase mTORC1 to IRS1, which spreads signal attenuation to all parts of the insulin signaling network. Experimental inhibition of mTORC1 using rapamycin in adipocytes from non-diabetic individuals induced and thus confirmed the predicted network-wide insulin resistance.

Indexed as

Insulin ResistanceMAP Kinase Signaling SystemAdipocytesAdultAgedDiabetes ComplicationsDiabetes Mellitus, Type 2FemaleHumansInsulin Receptor Substrate ProteinsMaleMechanistic Target of Rapamycin Complex 1Middle AgedMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Models, BiologicalInsulin Receptor Substrate ProteinsIRS1 protein, humanMAPK1 protein, humanMechanistic Target of Rapamycin Complex 1Mitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Multiprotein ComplexesTOR Serine-Threonine KinasesAdipocyteElk1Extracellular Signal-regulated Kinase (ERK)HumanInsulin ResistanceMAPKMathematical ModelingProtein PhosphorylationSignal TransductionType 2 Diabetes

Identifiers

PMID25320095
PMCPMC4246081
OpenAlexW2084346552

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.