Evidence map›Paper›PMID 19923269›Full record

ReviewJournal of cell science2009

Apical trafficking in epithelial cells: signals, clusters and motors.

Ora A Weisz, Enrique Rodriguez-Boulan

Abstract readReview
In one paragraph

Review in Journal of cell science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed
–field-weighted citation impact
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

170 citing papers in PubMed.

  1. Article
  2. Article
  3. Apical and basolateral plasma membranes in epithelial cells have distinct lipidomes and biophysical properties.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. KLF5 Shapes Developing Respiratory Tubules by Inhibiting Actin Asymmetry in Epithelial Cells.American journal of respiratory cell and molecular biology · 2025
    Article
  8. Article
  9. Review
  10. Actin cytoskeleton and associated myosin motors within the renal epithelium.American journal of physiology. Renal physiology · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

110 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

2 authors.

Ora A WeiszDepartment of Medicine and Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, PA 15261, USA. weisz@pitt.edu
Enrique Rodriguez-Boulan

Funding

RETINA--REVERSED POLARITY IN RPER01EY008538 · NEI · WEILL MEDICAL COLL OF CORNELL UNIV · PI RODRIGUEZ-BOULAN, ENRIQUE J · 1991 to 2020
$13.4M
SORTING OF PLASMA MEMBRANE PROTEINS IN EPITHELIAL CELLSR01GM034107 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI RODRIGUEZ-BOULAN, ENRIQUE J · 1985 to 2019
$9.6M
Regulation of Apical Traffic in Renal Epithelial CellsR01DK054407 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WEISZ, ORA A · 1998 to 2011
$3.3M
Regulation of Polarized Traffic by PI-Metabolizing EnzymesR01DK064613 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WEISZ, ORA A · 2004 to 2012
$2.5M
NEI NIH HHS EY08538NEI NIH HHS R01 EY008538NIDDK NIH HHS DK064613NIDDK NIH HHS DK54407NIGMS NIH HHS GM34107NIGMS NIH HHS R01 GM034107
6 · The paper itself

Abstract

In the early days of epithelial cell biology, researchers working with kidney and/or intestinal epithelial cell lines and with hepatocytes described the biosynthetic and recycling routes followed by apical and basolateral plasma membrane (PM) proteins. They identified the trans-Golgi network and recycling endosomes as the compartments that carried out apical-basolateral sorting. They described complex apical sorting signals that promoted association with lipid rafts, and simpler basolateral sorting signals resembling clathrin-coated-pit endocytic motifs. They also noticed that different epithelial cell types routed their apical PM proteins very differently, using either a vectorial (direct) route or a transcytotic (indirect) route. Although these original observations have generally held up, recent studies have revealed interesting complexities in the routes taken by apically destined proteins and have extended our understanding of the machinery required to sustain these elaborate sorting pathways. Here, we critically review the current status of apical trafficking mechanisms and discuss a model in which clustering is required to recruit apical trafficking machineries. Uncovering the mechanisms responsible for polarized trafficking and their epithelial-specific variations will help understand how epithelial functional diversity is generated and the pathogenesis of many human diseases.

Indexed as

AnimalsBiological TransportCell PolarityEndosomesEpithelial CellsHumansMicrotubulesModels, Biologicaltrans-Golgi Network

Identifiers

PMID19923269
PMCPMC2779128

What Socratic 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 Socratic graph.