Evidence map›Paper›PMID 9700159›Full record

ArticleThe Journal of cell biology1998

Apical polarity of N-CAM and EMMPRIN in retinal pigment epithelium resulting from suppression of basolateral signal recognition.

A D Marmorstein, Y C Gan, V L Bonilha, S C Finnemann, K G Csaky, E Rodriguez-Boulan

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

24 citing papers in PubMed, 60 citations in OpenAlex.

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  12. Clathrin adaptor AP1B controls adenovirus infectivity of epithelial cells.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  13. Article
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  16. Article
  17. A model of best vitelliform macular dystrophy in rats.Investigative ophthalmology & visual science · 2004
    Article
  18. Article
  19. Article
  20. Saturation of, and competition for entry into, the apical secretory pathway.Proceedings of the National Academy of Sciences of the United States of America · 2000
    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

6 authors at 2 institutions in 1 country.

A D MarmorsteinMargaret M. Dyson Vision Research Institute, Department of Ophthalmology and Department of Cell Biology and Anatomy, Cornell University Medical College, New York 10021, USA.
Y C Gan
V L Bonilha
S C Finnemann
K G Csaky
E Rodriguez-Boulan
Cornell University · USNational Eye Institute · US

Funding

RETINA--REVERSED POLARITY IN RPER01EY008538 · NEI · WEILL MEDICAL COLL OF CORNELL UNIV · PI RODRIGUEZ-BOULAN, ENRIQUE J · 1991 to 2020
$13.4M
PROTEIN TARGETING IN THE RETINAL PIGMENT EPITHELIUMF32EY006669 · NEI · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI MARMORSTEIN, ALAN D · 1996 to 1998
–
NEI NIH HHS F32 EY006669NEI NIH HHS F32 EY06669NEI NIH HHS R01 EY008538NEI NIH HHS R01-EY08538
6 · The paper itself

Abstract

Retinal pigment epithelial (RPE) cells apically polarize proteins that are basolateral in other epithelia. This reversal may be generated by the association of RPE with photoreceptors and the interphotoreceptor matrix, postnatal expansion of the RPE apical surface, and/or changes in RPE sorting machinery. We compared two proteins exhibiting reversed, apical polarities in RPE cells, neural cell adhesion molecule (N-CAM; 140-kD isoform) and extracellular matrix metalloproteinase inducer (EMMPRIN), with the cognate apical marker, p75-neurotrophin receptor (p75-NTR). N-CAM and p75-NTR were apically localized from birth to adulthood, contrasting with a basolateral to apical switch of EMMPRIN in developing postnatal rat RPE. Morphometric analysis demonstrated that this switch cannot be attributed to expansion of the apical surface of maturing RPE because the basolateral membrane expanded proportionally, maintaining a 3:1 apical/basolateral ratio. Kinetic analysis of polarized surface delivery in MDCK and RPE-J cells showed that EMMPRIN has a basolateral signal in its cytoplasmic tail recognized by both cell lines. In contrast, the basolateral signal of N-CAM is recognized by MDCK cells but not RPE-J cells. Deletion of N-CAM's basolateral signal did not prevent its apical localization in vivo. The data demonstrate that the apical polarity of EMMPRIN and N-CAM in mature RPE results from suppressed decoding of specific basolateral signals resulting in randomized delivery to the cell surface.

Indexed as

Antigens, CDAntigens, NeoplasmCell PolarityAnimalsBasiginBiological TransportCell LineCell Line, TransformedDogsFemaleGene Transfer TechniquesHumansMaleMembrane GlycoproteinsNeural Cell Adhesion MoleculesPigment Epithelium of EyeAntigens, CDAntigens, NeoplasmBasiginBSG protein, humanMembrane GlycoproteinsNeural Cell Adhesion MoleculesProtein Sorting SignalsReceptor, Nerve Growth FactorReceptors, Nerve Growth Factor

Identifiers

PMID9700159
PMCPMC2148181
OpenAlexW1990113726

What OpenQuestion holds

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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.