Evidence map›Paper›PMID 15169906›Full record

ArticleMolecular and cellular biology2004

Unconventional myosin Myo1c promotes membrane fusion in a regulated exocytic pathway.

Avirup Bose, Stacey Robida, Paul S Furcinitti, Anil Chawla, Kevin Fogarty, Silvia Corvera, Michael P Czech

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

87 citing papers in PubMed, 165 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. GLUT4 On the move.The Biochemical journal · 2022
    Article
  9. Microtubules in insulin action: what's on the tube?Trends in endocrinology and metabolism: TEM · 2021
    Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Putting the brakes on a myosin motor.The Journal of biological chemistry · 2020
    Article
  16. Article
  17. Unconventional Myosins: How Regulation Meets Function.International journal of molecular sciences · 2019
    Review
  18. Article
  19. Article
  20. Article

27 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

7 authors at 2 institutions in 2 countries.

Avirup BoseProgram in Molecular Medicine, Department of Physiology, University of Massachusetts Medical School, Worcester, 01605, USA.
Stacey Robida
Paul S Furcinitti
Anil Chawla
Kevin Fogarty
Silvia Corvera
Michael P Czech
Institute of Molecular Medicine · INUniversity of Massachusetts Chan Medical School · US

Funding

Adipose Tissue Angiogenesis and Metabolic DiseaseR01DK089101 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI CORVERA, SILVIA · 2011 to 2024
$5.7M
Mechanisms of human adipose tissue development and impact of diabetesR01DK123028 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI Silvia Corvera · 2019 to 2026
$3.6M
Human adipose tissue in control of sympathetic tone and metabolic rateR01DK137403 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI Silvia Corvera · 2023 to 2026
$2.9M
Insulin Signaling to GLUT4 and the Actin CytoskeletonR01DK063023 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI CZECH, MICHAEL P · 2003 to 2007
$1.7M
Novel Imaging Technologies applied to Insulin ActionR01DK058133 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI CORVERA, SILVIA · 2001 to 2004
$1.1M
NIDDK NIH HHS DK063023NIDDK NIH HHS DK58133NIDDK NIH HHS R01 DK058133NIDDK NIH HHS R01 DK063023NIDDK NIH HHS R01 DK089101NIDDK NIH HHS R01 DK123028NIDDK NIH HHS R01 DK137403
6 · The paper itself

Abstract

Glucose homeostasis is controlled in part by regulation of glucose uptake into muscle and adipose tissue. Intracellular membrane vesicles containing the GLUT4 glucose transporter move towards the cell cortex in response to insulin and then fuse with the plasma membrane. Here we show that the fusion step is retarded by the inhibition of phosphatidylinositol (PI) 3-kinase. Treatment of insulin-stimulated 3T3-L1 adipocytes with the PI 3-kinase inhibitor LY294002 causes the accumulation of GLUT4-containing vesicles just beneath the cell surface. This accumulation of GLUT4-containing vesicles near the plasma membrane prior to fusion requires an intact cytoskeletal network and the unconventional myosin motor Myo1c. Remarkably, enhanced Myo1c expression under these conditions causes extensive membrane ruffling and overrides the block in membrane fusion caused by LY294002, restoring the display of GLUT4 on the cell exterior. Ultrafast microscopic analysis revealed that insulin treatment leads to the mobilization of GLUT4-containing vesicles to these regions of Myo1c-induced membrane ruffles. Thus, localized membrane remodeling driven by the Myo1c motor appears to facilitate the fusion of exocytic GLUT4-containing vesicles with the adipocyte plasma membrane.

Indexed as

Muscle Proteins3T3-L1 CellsAdipocytesAnimalsChromonesEnzyme InhibitorsExocytosisGlucose Transporter Type 4InsulinMembrane FusionMiceMolecular Motor ProteinsMonosaccharide Transport ProteinsMorpholinesMyosinsMyosin Type I2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneChromonesEnzyme InhibitorsGlucose Transporter Type 4InsulinMolecular Motor ProteinsMonosaccharide Transport ProteinsMorpholinesMuscle ProteinsMyo1c protein, mouseMyosinsMyosin Type IPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsRecombinant Fusion ProteinsSlc2a4 protein, mouse

Identifiers

PMID15169906
PMCPMC419880
OpenAlexW2171244349

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.