Evidence map›Paper›PMID 11514615›Full record

ArticleMolecular biology of the cell2001

Cdc42-dependent modulation of tight junctions and membrane protein traffic in polarized Madin-Darby canine kidney cells.

R Rojas, W G Ruiz, S M Leung, T S Jou, G Apodaca

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

54 citing papers in PubMed, 128 citations in OpenAlex.

  1. Tight junction structure, assembly and (dys)function.Nature reviews. Molecular cell biology · 2026
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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

5 authors at 2 institutions in 2 countries.

R RojasRenal-Electrolyte Division of the Department of Medicine, Laboratory of Epithelial Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA.
W G Ruiz
S M Leung
T S Jou
G Apodaca
University of Pittsburgh · USNational Taiwan University Hospital · TW

Funding

REGULATION OF ENDOCYTIC TRAFFIC IN KIDNEY CELLSR01DK051970 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI APODACA, GERARD L · 1997 to 2005
$1.4M
NIDDK NIH HHS R01 DK051970NIDDK NIH HHS R01DK51970
6 · The paper itself

Abstract

Polarized epithelial cells maintain the asymmetric composition of their apical and basolateral membrane domains by at least two different processes. These include the regulated trafficking of macromolecules from the biosynthetic and endocytic pathway to the appropriate membrane domain and the ability of the tight junction to prevent free mixing of membrane domain-specific proteins and lipids. Cdc42, a Rho family GTPase, is known to govern cellular polarity and membrane traffic in several cell types. We examined whether this protein regulated tight junction function in Madin-Darby canine kidney cells and pathways that direct proteins to the apical and basolateral surface of these cells. We used Madin-Darby canine kidney cells that expressed dominant-active or dominant-negative mutants of Cdc42 under the control of a tetracycline-repressible system. Here we report that expression of dominant-active Cdc42V12 or dominant-negative Cdc42N17 altered tight junction function. Expression of Cdc42V12 slowed endocytic and biosynthetic traffic, and expression of Cdc42N17 slowed apical endocytosis and basolateral to apical transcytosis but stimulated biosynthetic traffic. These results indicate that Cdc42 may modulate multiple cellular pathways required for the maintenance of epithelial cell polarity.

Indexed as

Cell PolarityActinsAnimalscdc42 GTP-Binding ProteinCell LineCell MembraneCytoskeletonDogsElectric ImpedanceEndocytosisEpidermal Growth FactorGolgi Matrix ProteinsImmunoblottingImmunoglobulin AInulinMembrane ProteinsActinscdc42 GTP-Binding ProteinEpidermal Growth FactorGolgi Matrix ProteinsImmunoglobulin AInulinmacrogolginMembrane ProteinsOccludinPhosphoproteinsRecombinant Fusion ProteinsZonula Occludens-1 Protein

Identifiers

PMID11514615
PMCPMC58593
OpenAlexW2136231244

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.