Evidence map›Paper›PMID 1350978›Full record

ArticleThe EMBO journal1992

Modulation of transcytotic and direct targeting pathways in a polarized thyroid cell line.

C Zurzolo, A Le Bivic, A Quaroni, L Nitsch, E Rodriguez-Boulan

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 101 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Milk secretion: The role of SNARE proteins.Journal of mammary gland biology and neoplasia · 2014
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. AP1B sorts basolateral proteins in recycling and biosynthetic routes of MDCK cells.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Thyroid functions of mouse cathepsins B, K, and L.The Journal of clinical investigation · 2003
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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 1 institution in 1 country.

C ZurzoloDepartment of Cell Biology and Anatomy, Cornell University Medical College, New York, NY 10021.
A Le Bivic
A Quaroni
L Nitsch
E Rodriguez-Boulan
Cornell University · 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
NIGMS NIH HHS GM 34107NIGMS NIH HHS R01 GM034107
6 · The paper itself

Abstract

Two biosynthetic pathways exist for delivery of membrane proteins to the apical surface of epithelial cells, direct transport from the trans-Golgi network (TGN) and transcytosis from the basolateral membrane. Different epithelial cells vary in the expression of these mechanisms. Two extremes are MDCK cells, that use predominantly the direct route and hepatocytes, which deliver all apical proteins via the basolateral membrane. To determine how epithelial cells establish a particular targeting phenotype, we studied the apical delivery of endogenous dipeptidyl peptidase IV (DPPIV) at early and late stages in the development of monolayers of a highly polarized epithelial cell line derived from Fischer rat thyroid (FRT). In 1 day old monolayers, surface delivery of DPPIV from the TGN was unpolarized (50%/50%) but a large basal to apical transcytotic component resulted in a polarized apical distribution. In contrast, after 7 days of culture, delivery of DPPIV was mainly direct (85%) with no transcytosis of the missorted component. A basolateral marker, Ag 35/40 kD, on the other hand, was directly targeted (90-98%) at all times. These results indicate that the sorting machinery for apical proteins develops independently from the sorting machinery for basolateral proteins and that the sorting site relocates progressively from the basal membrane to the TGN during development of the epithelium. The transient expression of the transcytotic pathway may serve as a salvage pathway for missorted apical proteins when the polarized phenotype is being established.

Indexed as

AnimalsBiological TransportCell LineCell MembraneDipeptidyl Peptidase 4Dipeptidyl-Peptidases and Tripeptidyl-PeptidasesEpitheliumGolgi ApparatusKineticsMembrane ProteinsRatsRats, Inbred F344Thyroid GlandDipeptidyl Peptidase 4Dipeptidyl-Peptidases and Tripeptidyl-PeptidasesMembrane Proteins

Identifiers

PMID1350978
PMCPMC556701
OpenAlexW1689813593

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.