Evidence map›Paper›PMID 9212730›Full record

ArticleThe American journal of pathology1997

Expression of occludin, tight-junction-associated protein, in human digestive tract.

Y Kimura, H Shiozaki, M Hirao, Y Maeno, Y Doki, M Inoue, T Monden, Y Ando-Akatsuka, M Furuse, S Tsukita and 1 more

Abstract read
In one paragraph

Article in The American journal of pathology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

55 citing papers in PubMed, 144 citations in OpenAlex.

  1. Trial
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  11. Bu-Zhong-Yi-Qi Granule Enhances Colonic Tight Junction Integrity via TLR4/NF-Evidence-based complementary and alternative medicine : eCAM · 2021
    Article
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  17. Review
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  19. Low expression of occludin: a predictor of poor prognosis in esophageal squamous cell carcinoma.International journal of clinical and experimental pathology · 2017
    Article
  20. 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

11 authors at 1 institution in 1 country.

Y KimuraDepartment of Surgery II, Osaka University Medical School, Japan.
H Shiozaki
M Hirao
Y Maeno
Y Doki
M Inoue
T Monden
Y Ando-Akatsuka
M Furuse
S Tsukita
M Monden
Osaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The tight junction seals cells together at a subapical location and functionally separates the plasma membrane into an apical and a basolateral domain. This junction is one of the most characteristic structural markers of the polarized epithelial cell. Recently, occludin has been identified as an integral transmembrane protein localizing at the tight junction and directly associated with ZO-1, an undercoat-constitutive cytoplasmic protein. We have investigated occludin expression in conjunction with ZO-1 in normal epithelia and cancers of human digestive tract by immunostaining with a new antibody raised against human occludin. In the normal simple columnar epithelium, occludin was expressed together with ZO-1 as a single line at the apical cell border. However, in the esophagus, which has a stratified squamous epithelium, no occludin expression could be detected, but ZO-1 was expressed in the spinous layer. As for cancers, both occludin and ZO-1 showed the same expression in differentiated adenocarcinoma cells as in normal epithelium, but in poorly differentiated adenocarcinomas, the expression of these two proteins was reduced. There was significant correlation between tumor differentiation and expression of these proteins. These results suggest that occludin, together with ZO-1, is involved in the formation of gland-like structures. In addition, occludin expression can serve as a histopathological indicator for differentiation in gastrointestinal adenocarcinomas.

Indexed as

AdenocarcinomaCarcinoma, Squamous CellCell LineColonic NeoplasmsDigestive SystemEsophageal NeoplasmsHumansImmunoblottingImmunohistochemistryMembrane ProteinsOccludinPhosphoproteinsStomach NeoplasmsTight JunctionsZonula Occludens-1 ProteinMembrane ProteinsOccludinOCLN protein, humanPhosphoproteinsTJP1 protein, humanZonula Occludens-1 Protein

Identifiers

PMID9212730
PMCPMC1857944
OpenAlexW164689370

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.