Evidence map›Paper›PMID 14981097›Full record

ArticleThe Journal of cell biology2004

Mammalian PAR-1 determines epithelial lumen polarity by organizing the microtubule cytoskeleton.

David Cohen, Patrick J Brennwald, Enrique Rodriguez-Boulan, Anne Müsch

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
4.3field-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

105 citing papers in PubMed, 196 citations in OpenAlex.

  1. Article
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  3. International journal of molecular sciences · 2025
    Article
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  6. TEX38 localizes ZDHHC19 to the plasma membrane and regulates sperm head morphogenesis in mice.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
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  10. Article
  11. PKA-independent vasopressin signaling in renal collecting duct.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Microtubule Motors in Establishment of Epithelial Cell Polarity.Cold Spring Harbor perspectives in biology · 2018
    Review
  18. Review
  19. Article
  20. Review

45 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

4 authors at 2 institutions in 1 country.

David CohenMargaret M. Dyson Vision Research Institute, Weill Medical College of Cornell University, 1300 York Ave., Box 233, New York, NY 10021, USA.
Patrick J Brennwald
Enrique Rodriguez-Boulan
Anne Müsch
Cornell University · USUniversity of North Carolina at Chapel Hill · US

Funding

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 EXOCYTOSIS BY A RHO GTPPASER01GM054712 · NIGMS · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI PATRICK J BRENNWALD · 1998 to 2026
$9.5M
NIGMS NIH HHS GM-34107NIGMS NIH HHS GM-54712NIGMS NIH HHS R01 GM034107NIGMS NIH HHS R01 GM054712
6 · The paper itself

Abstract

Epithelial differentiation involves the generation of luminal surfaces and of a noncentrosomal microtubule (MT) network aligned along the polarity axis. Columnar epithelia (e.g., kidney, intestine, and Madin-Darby canine kidney [MDCK] cells) generate apical lumina and orient MT vertically, whereas liver epithelial cells (hepatocytes and WIFB9 cells) generate lumina at cell-cell contact sites (bile canaliculi) and orient MTs horizontally. We report that knockdown or inhibition of the mammalian orthologue of Caenorhabditis elegans Par-1 (EMK1 and MARK2) during polarization of cultured MDCK and WIFB9 cells prevented development of their characteristic lumen and nonradial MT networks. Conversely, EMK1 overexpression induced the appearance of intercellular lumina and horizontal MT arrays in MDCK cells, making EMK1 the first known candidate to regulate the developmental branching decision between hepatic and columnar epithelial cells. Our experiments suggest that EMK1 primarily promotes reorganization of the MT network, consistent with the MT-regulating role of this gene product in other systems, which in turn controls lumen formation and position.

Indexed as

Cell PolarityAnimalsCaenorhabditis elegans ProteinsCell DifferentiationCell LineCell SizeCytoskeletonDogsEpithelial CellsGene Expression RegulationHumansKidneyMembrane ProteinsMicrotubulesMorphogenesisProtein Serine-Threonine KinasesCaenorhabditis elegans ProteinsEMK1 protein, Canis familiarisMembrane ProteinsPAR-1 protein, C elegansProtein Serine-Threonine KinasesRecombinant Fusion Proteins

Identifiers

PMID14981097
PMCPMC2172160
OpenAlexW2151352552

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.