Evidence map›Paper›PMID 19692570›Full record

ArticleMolecular biology of the cell2009

Retrograde Shiga toxin trafficking is regulated by ARHGAP21 and Cdc42.

Heidi Hehnly, Katrina Marie Longhini, Ji-Long Chen, Mark Stamnes

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. The Actin Cytoskeleton Mediates Transmission of "Applied and environmental microbiology · 2021
    Article
  4. Review
  5. Article
  6. Review
  7. A New Look at the Functional Organization of the Golgi Ribbon.Frontiers in cell and developmental biology · 2019
    Article
  8. Article
  9. Review
  10. Human and mouse tissue-engineered small intestine both demonstrate digestive and absorptive function.American journal of physiology. Gastrointestinal and liver physiology · 2015
    Article
  11. Article
  12. Article
  13. Article
  14. Retrograde trafficking of AB₅ toxins: mechanisms to therapeutics.Journal of molecular medicine (Berlin, Germany) · 2013
    Review
  15. Actin acting at the Golgi.Histochemistry and cell biology · 2013
    Review
  16. Roles of rho GTPases in intracellular transport and cellular transformation.International journal of molecular sciences · 2013
    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

4 authors at 2 institutions in 2 countries.

Heidi HehnlyDepartment of Molecular Physiology and Biophysics, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, USA.
Katrina Marie Longhini
Ji-Long Chen
Mark Stamnes
Institute of Molecular Biology and Biophysics · RUUniversity of Iowa · US

Funding

Regulated cytoskeletal dynamics in the secretory pathwayR01GM068674 · NIGMS · UNIVERSITY OF IOWA · PI STAMNES, MARK A. · 2003 to 2006
$975k
NIGMS NIH HHS GM-068674NIGMS NIH HHS R01 GM068674
6 · The paper itself

Abstract

Shiga-toxin-producing Escherichia coli remain a food-borne health threat. Shiga toxin is endocytosed by intestinal epithelial cells and transported retrogradely through the secretory pathway. It is ultimately translocated to the cytosol where it inhibits protein translation. We found that Shiga toxin transport through the secretory pathway was dependent on the cytoskeleton. Recent studies reveal that Shiga toxin activates signaling pathways that affect microtubule reassembly and dynein-dependent motility. We propose that Shiga toxin alters cytoskeletal dynamics in a way that facilitates its transport through the secretory pathway. We have now found that Rho GTPases regulate the endocytosis and retrograde motility of Shiga toxin. The expression of RhoA mutants inhibited endocytosis of Shiga toxin. Constitutively active Cdc42 or knockdown of the Cdc42-specific GAP, ARHGAP21, inhibited the transport of Shiga toxin to the juxtanuclear Golgi apparatus. The ability of Shiga toxin to stimulate microtubule-based transferrin transport also required Cdc42 and ARHGAP21 function. Shiga toxin addition greatly decreases the levels of active Cdc42-GTP in an ARHGAP21-dependent manner. We conclude that ARHGAP21 and Cdc42-based signaling regulates the dynein-dependent retrograde transport of Shiga toxin to the Golgi apparatus.

Indexed as

Animalscdc42 GTP-Binding ProteinChlorocebus aethiopsCytoskeletonEndocytosisGene Knockdown TechniquesGolgi ApparatusGTPase-Activating ProteinsGuanosine TriphosphateMicroscopy, ConfocalMicrotubulesProtein Transportrac1 GTP-Binding ProteinRecombinant Fusion ProteinsrhoA GTP-Binding ProteinRNA, Small Interferingcdc42 GTP-Binding ProteinGTPase-Activating ProteinsGuanosine Triphosphaterac1 GTP-Binding ProteinRecombinant Fusion ProteinsrhoA GTP-Binding ProteinRNA, Small InterferingShiga ToxinsstxB toxinTransferrin

Identifiers

PMID19692570
PMCPMC2762141
OpenAlexW2133553790

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.