Evidence map›Paper›PMID 24705403›Full record

ArticleDiabetes2014

Akt-dependent phosphorylation of hepatic FoxO1 is compartmentalized on a WD40/ProF scaffold and is selectively inhibited by aPKC in early phases of diet-induced obesity.

Mini P Sajan, Mildred E Acevedo-Duncan, Mary L Standaert, Robert A Ivey, Mackenzie Lee, Robert V Farese

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Protein Kinase C Regulates Meiosis in Mammalian Oocytes.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  4. Intracellular Sphingosine-1-Phosphate Induces Lipolysis Through Direct Activation of Protein Kinase C Zeta.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  5. Protein Kinases in Obesity, and the Kinase-Targeted Therapy.Advances in experimental medicine and biology · 2024
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Biochemistry and neuroscience: the twain need to meet.Current opinion in neurobiology · 2017
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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 4 institutions in 1 country.

Mini P SajanMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL.
Mildred E Acevedo-DuncanMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL.
Mary L StandaertMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL.
Robert A IveyMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL.
Mackenzie LeeMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL.
Robert V FareseMedical and Research Services, James A. Haley Veterans Medical Center; Tampa, FLDivision of Endocrinology and Metabolism, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, FL rfarese@health.usf.edu.
University of South Florida · USUniversity of Tampa · USFlorida College · USJames A. Haley Veterans' Hospital · US

Funding

Activation of Atypical PKC by Insulin and Other AgonistsR01DK065969 · NIDDK · UNIVERSITY OF SOUTH FLORIDA · PI FARESE, ROBERT V · 2004 to 2014
$2.8M
Atypical PKC Knockout Models: Effect on Glucose and Lipid HomeostasisI01BX001415 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI FARESE, ROBERT V · 2013 to 2016
–
BLRD VA I01 BX001415NIDDK NIH HHS 7R01DK065969-09NIDDK NIH HHS R01 DK065969
6 · The paper itself

Abstract

Initiating mechanisms that impair gluconeogenic enzymes and spare lipogenic enzymes in diet-induced obesity (DIO) are obscure. Here, we examined insulin signaling to Akt and atypical protein kinase C (aPKC) in liver and muscle and hepatic enzyme expression in mice consuming a moderate high-fat (HF) diet. In HF diet-fed mice, resting/basal and insulin-stimulated Akt and aPKC activities were diminished in muscle, but in liver, these activities were elevated basally and were increased by insulin to normal levels. Despite elevated hepatic Akt activity, FoxO1 phosphorylation, which diminishes gluconeogenesis, was impaired; in contrast, Akt-dependent phosphorylation of glycogenic GSK3β and lipogenic mTOR was elevated. Diminished Akt-dependent FoxO1 phosphorylation was associated with reduced Akt activity associated with scaffold protein WD40/Propeller/FYVE (WD40/ProF), which reportedly facilitates FoxO1 phosphorylation. In contrast, aPKC activity associated with WD40/ProF was increased. Moreover, inhibition of hepatic aPKC reduced its association with WD40/ProF, restored WD40/ProF-associated Akt activity, restored FoxO1 phosphorylation, and corrected excessive expression of hepatic gluconeogenic and lipogenic enzymes. Additionally, Akt and aPKC activities in muscle improved, as did glucose intolerance, weight gain, hepatosteatosis, and hyperlipidemia. We conclude that Akt-dependent FoxO1 phosphorylation occurs on the WD/Propeller/FYVE scaffold in liver and is selectively inhibited in early DIO by diet-induced increases in activity of cocompartmentalized aPKC.

Indexed as

Animal FeedAnimalsCarrier ProteinsCeramidesDiet, High-FatForkhead Box Protein O1Forkhead Transcription FactorsGene Expression RegulationGuanine Nucleotide Exchange FactorsInsulinLiverMaleMiceMuscle, SkeletalObesityPhosphorylationCarrier Proteinsceramide 1-phosphateCeramidesFGD5 protein, mouseForkhead Box Protein O1Forkhead Transcription FactorsFoxo1 protein, mouseGuanine Nucleotide Exchange FactorsInsulinmTOR protein, mousePKC-3 proteinProF protein, mouseProtein Kinase CProtein Kinase InhibitorsProto-Oncogene Proteins c-aktTOR Serine-Threonine Kinases

Identifiers

PMID24705403
PMCPMC4113067
OpenAlexW2142002262

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.