Evidence map›Paper›PMID 12832475›Full record

ArticleMolecular and cellular biology2003

Insulin-induced GLUT4 translocation involves protein kinase C-lambda-mediated functional coupling between Rab4 and the motor protein kinesin.

Takeshi Imamura, Jie Huang, Isao Usui, Hiroaki Satoh, Jennie Bever, Jerrold M Olefsky

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

70 citing papers in PubMed, 180 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. GLUT4 On the move.The Biochemical journal · 2022
    Article
  9. Review
  10. Review
  11. Microtubules in insulin action: what's on the tube?Trends in endocrinology and metabolism: TEM · 2021
    Review
  12. Mechanisms and Regulation of Cardiac CaInternational journal of molecular sciences · 2021
    Review
  13. Article
  14. TheMolecular biology of the cell · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

10 more citing papers are in PubMed but not listed here.

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.

Takeshi ImamuraDivision of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, California 92093, USA.
Jie Huang
Isao Usui
Hiroaki Satoh
Jennie Bever
Jerrold M Olefsky
University of California, San Diego · US

Funding

INSULIN RECEPTORS AND THE GLUCOSE TRANSPORT SYSTEMR37DK033651 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI OLEFSKY, JERROLD MICHAEL · 2000 to 2010
$6.1M
INSULIN RECEPTORS AND THE GLUCOSE TRANSPORT SYSTEMR01DK033651 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI OLEFSKY, JERROLD MICHAEL · 1986 to 2013
$2.2M
NIDDK NIH HHS DK-33651NIDDK NIH HHS R01 DK033651NIDDK NIH HHS R37 DK033651
6 · The paper itself

Abstract

Insulin stimulates glucose transport by promoting translocation of GLUT4 proteins from the perinuclear compartment to the cell surface. It has been previously suggested that the microtubule-associated motor protein kinesin, which transports cargo toward the plus end of microtubules, plays a role in translocating GLUT4 vesicles to the cell surface. In this study, we investigated the role of Rab4, a small GTPase-binding protein, and the motor protein KIF3 (kinesin II in mice) in insulin-induced GLUT4 exocytosis in 3T3-L1 adipocytes. Photoaffinity labeling of Rab4 with [gamma-(32)P]GTP-azidoanilide showed that insulin stimulated Rab4 GTP loading and that this insulin effect was inhibited by pretreatment with the phosphatidylinositol 3-kinase (PI3-kinase) inhibitor LY294002 or expression of dominant-negative protein kinase C-lambda (PKC-lambda). Consistent with previous reports, expression of dominant-negative Rab4 (N121I) decreased insulin-induced GLUT4 translocation by 45%. Microinjection of an anti-KIF3 antibody into 3T3-L1 adipocytes decreased insulin-induced GLUT4 exocytosis by 65% but had no effect on endocytosis. Coimmunoprecipitation experiments showed that Rab4, but not Rab5, physically associated with KIF3, and this was confirmed by showing in vitro association using glutathione S-transferase-Rab4. A microtubule capture assay demonstrated that insulin stimulation increased the activity for the binding of KIF3 to microtubules and that this activation was inhibited by pretreatment with the PI3-kinase inhibitor LY294002 or expression of dominant-negative PKC-lambda. Taken together, these data indicate that (i) insulin signaling stimulates Rab4 activity, the association of Rab4 with kinesin, and the interaction of KIF3 with microtubules and (ii) this process is mediated by insulin-induced PI3-kinase-dependent PKC-lambda activation and participates in GLUT4 exocytosis in 3T3-L1 adipocytes.

Indexed as

Muscle Proteins3T3 CellsAdipocytesAnimalsBiological AssayCell MembraneChromonesEnzyme ActivationEnzyme InhibitorsExocytosisGlucose Transporter Type 4InsulinIsoenzymesKinesinsMiceMicrotubules2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneChromonesEnzyme InhibitorsGlucose Transporter Type 4InsulinIsoenzymesKif3a protein, mouseKinesinsMonosaccharide Transport ProteinsMorpholinesMuscle ProteinsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProtein Kinase CProtein Kinase C-lambdarab4 GTP-Binding Proteinsrab5 GTP-Binding ProteinsSlc2a4 protein, mouse

Identifiers

PMID12832475
PMCPMC162221
OpenAlexW2164988266

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.