Evidence map›Paper›PMID 19478094›Full record

ArticleJournal of the American Society of Nephrology : JASN2009

Slit diaphragms contain tight junction proteins.

Hirotaka Fukasawa, Scott Bornheimer, Krystyna Kudlicka, Marilyn G Farquhar

Abstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed
8.1field-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

92 citing papers in PubMed, 166 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Podocytopathies.Nature reviews. Disease primers · 2025
    Review
  6. Article
  7. Cdc42 Activation in Antinephrin Antibody-Induced Nephropathy.Journal of the American Society of Nephrology : JASN · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Biophysical characterization and insights into the oligomeric nature of CD2-associated protein.International journal of biochemistry and molecular biology · 2024
    Article
  20. Article

32 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Hirotaka FukasawaDepartment of Cellular and Molecular Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0651, USA.
Scott Bornheimer
Krystyna Kudlicka
Marilyn G Farquhar
University of California, San Diego · US

Funding

GLOMERULAR CAPILLARIES--NORMAL &PATHOLOGICR01DK017724 · NIDDK · YALE UNIVERSITY · PI FARQUHAR, MARILYN GIST · 1986 to 2008
$3.6M
Glomerular Capillaries-- Normal and PathologicR37DK017724 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FARQUHAR, MARILYN GIST · 2009 to 2015
$2.7M
NIDDK NIH HHS DK17724NIDDK NIH HHS R01 DK017724NIDDK NIH HHS R37 DK017724
6 · The paper itself

Abstract

Slit diaphragms are essential components of the glomerular filtration apparatus, as changes in these junctions are the hallmark of proteinuric diseases. Slit diaphragms, considered specialized adherens junctions, contain both unique membrane proteins (e.g., nephrin, podocin, and Neph1) and typical adherens junction proteins (e.g., P-cadherin, FAT, and catenins). Whether slit diaphragms also contain tight junction proteins is unknown. Here, immunofluorescence, immunogold labeling, and cell fractionation demonstrated that rat slit diaphragms contain the tight junction proteins JAM-A (junctional adhesion molecule A), occludin, and cingulin. We found these proteins in the same protein complexes as nephrin, podocin, CD2AP, ZO-1, and Neph1 by cosedimentation, coimmunoprecipitation, and pull-down assays. PAN nephrosis increased the protein levels of JAM-A, occludin, cingulin, and ZO-1 several-fold in glomeruli and loosened their attachment to the actin cytoskeleton. These data extend current information about the molecular composition of slit diaphragms by demonstrating the presence of tight junction proteins, although slit diaphragms lack the characteristic morphologic features of tight junctions. The contribution of these proteins to the assembly of slit diaphragms and potential signaling cascades requires further investigation.

Indexed as

ActinsAnimalsCell Adhesion MoleculesCell CommunicationCytoskeletonDisease Models, AnimalGuanylate KinasesJunctional Adhesion MoleculesKidney GlomerulusMaleMembrane ProteinsNephrosisOccludinPhosphoproteinsPodocytesRatsActinsCASK kinasesCell Adhesion MoleculesGuanylate KinasesJunctional Adhesion MoleculesMembrane ProteinsOccludinOcln protein, ratPhosphoproteinsTjp1 protein, ratZonula Occludens-1 Protein

Identifiers

PMID19478094
PMCPMC2709684
OpenAlexW2101140701

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.