Evidence map›Paper›PMID 31390291›Full record

ArticleMolecular biology of the cell2019

PACSIN2-dependent apical endocytosis regulates the morphology of epithelial microvilli.

Meagan M Postema, Nathan E Grega-Larson, Leslie M Meenderink, Matthew J Tyska

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Life science alliance · 2023
    Article
  9. Article
  10. PACSIN proteins in vivo: Roles in development and physiology.Acta physiologica (Oxford, England) · 2022
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. 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 1 institution in 1 country.

Meagan M PostemaDepartment of Cell and Developmental Biology, Vanderbilt University School of Medicine, University Medical Center, Nashville, TN 37232.
Nathan E Grega-LarsonDepartment of Cell and Developmental Biology, Vanderbilt University School of Medicine, University Medical Center, Nashville, TN 37232.
Leslie M MeenderinkDivision of Infectious Diseases, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232.
Matthew J TyskaDepartment of Cell and Developmental Biology, Vanderbilt University School of Medicine, University Medical Center, Nashville, TN 37232.
Vanderbilt University Medical Center · US

Funding

Molecular basis of brush border assemblyR01DK095811 · NIDDK · VANDERBILT UNIVERSITY · PI MATTHEW J TYSKA · 2013 to 2026
$4.9M
Role of I-BAR proteins in enterocyte differentiationR01DK111949 · NIDDK · VANDERBILT UNIVERSITY · PI MATTHEW J TYSKA · 2017 to 2026
$4.2M
NIDDK NIH HHS R01 DK095811NIDDK NIH HHS R01 DK111949
6 · The paper itself

Abstract

Apical microvilli are critical for the homeostasis of transporting epithelia, yet mechanisms that control the assembly and morphology of these protrusions remain poorly understood. Previous studies in intestinal epithelial cell lines suggested a role for the F-BAR domain protein PACSIN2 in normal microvillar assembly. Here we report the phenotype of PACSIN2 KO mice and provide evidence that through its role in promoting apical endocytosis, this molecule plays a role in controlling microvillar morphology. PACSIN2 KO enterocytes exhibit reduced numbers of microvilli and defects in the microvillar ultrastructure, with membranes lifting away from rootlets of core bundles. Dynamin2, a PACSIN2 binding partner, and other endocytic factors were also lost from their normal localization near microvillar rootlets. To determine whether loss of endocytic machinery could explain defects in microvillar morphology, we examined the impact of PACSIN2 KD and endocytosis inhibition on live intestinal epithelial cells. These assays revealed that when endocytic vesicle scission fails, tubules are pulled into the cytoplasm and this, in turn, leads to a membrane-lifting phenomenon reminiscent of that observed at PACSIN2 KO brush borders. These findings lead to a new model where inward forces generated by endocytic machinery on the plasma membrane control the membrane wrapping of cell surface protrusions.

Indexed as

ActinsAdaptor Proteins, Signal TransducingAnimalsCarrier ProteinsCell LineCell Line, TumorCell MembraneEndocytosisEnterocytesEpithelial CellsFemaleHumansIntestinal MucosaIntestinesMiceMice, KnockoutActinsAdaptor Proteins, Signal TransducingCarrier ProteinsPacsin2 protein, mouse

Identifiers

PMID31390291
PMCPMC6743356
OpenAlexW2966359252

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.