Evidence map›Paper›PMID 17502425›Full record

ArticleThe Journal of cell biology2007

Myosin-1a powers the sliding of apical membrane along microvillar actin bundles.

Russell E McConnell, Matthew J Tyska

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Destruction of the brush border byFrontiers in microbiology · 2024
    Article
  7. Review
  8. A Review of Extracellular Vesicles in COVID-19 Diagnosis, Treatment, and Prevention.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Review
  9. Review
  10. Review
  11. Manipulation of microvillar proteins duringFrontiers in cellular and infection microbiology · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. 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

2 authors at 1 institution in 1 country.

Russell E McConnellDepartment of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Matthew J Tyska
Vanderbilt University Medical Center · US

Funding

Training Program in Stem Cell and Regenerative Developmental BiologyT32HD007502 · NICHD · VANDERBILT UNIVERSITY · PI WRIGHT, CHRISTOPHER V · 1997 to 2022
$5.4M
Regulation of Brush Border Structure by Myosin-1aR01DK075555 · NIDDK · VANDERBILT UNIVERSITY · PI TYSKA, MATTHEW J · 2007 to 2016
$2.7M
NICHD NIH HHS HD07502NICHD NIH HHS T32 HD007502NIDDK NIH HHS DK075555NIDDK NIH HHS R01 DK075555
6 · The paper itself

Abstract

Microvilli are actin-rich membrane protrusions common to a variety of epithelial cell types. Within microvilli of the enterocyte brush border (BB), myosin-1a (Myo1a) forms an ordered ensemble of bridges that link the plasma membrane to the underlying polarized actin bundle. Despite decades of investigation, the function of this unique actomyosin array has remained unclear. Here, we show that addition of ATP to isolated BBs induces a plus end-directed translation of apical membrane along microvillar actin bundles. Upon reaching microvillar tips, membrane is "shed" into solution in the form of small vesicles. Because this movement demonstrates the polarity, velocity, and nucleotide dependence expected for a Myo1a-driven process, and BBs lacking Myo1a fail to undergo membrane translation, we conclude that Myo1a powers this novel form of motility. Thus, in addition to providing a means for amplifying apical surface area, we propose that microvilli function as actomyosin contractile arrays that power the release of BB membrane vesicles into the intestinal lumen.

Indexed as

ActinsAdenosine TriphosphateAnimalsCell MembraneMiceMice, KnockoutMicrovilliMyosin Heavy ChainsRatsRats, Sprague-DawleyActinsAdenosine TriphosphateMyo1a protein, mouseMyosin Heavy Chains

Identifiers

PMID17502425
PMCPMC2064212
OpenAlexW1980493113

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.