Evidence map›Paper›PMID 19423686›Full record

ArticleJournal of the American Society of Nephrology : JASN2009

Cellular origins of type IV collagen networks in developing glomeruli.

Dale R Abrahamson, Billy G Hudson, Larysa Stroganova, Dorin-Bogdan Borza, Patricia L St John

Open access · greenAbstract 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 124 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 3% 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

124 citing papers in PubMed, 1 synthesis or guideline pooled it, 218 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Treatment Approaches for Alport Syndrome.Journal of the American Society of Nephrology : JASN · 2026
    Review
  7. Collagen IV in Gould syndrome and Alport syndrome.Nature reviews. Nephrology · 2025
    Review
  8. The life cycle of type IV collagen.Matrix biology : journal of the International Society for Matrix Biology · 2025
    Review
  9. The Life of a Kidney Podocyte.Acta physiologica (Oxford, England) · 2025
    Review
  10. Article
  11. Review
  12. IncreasedWellcome open research · 2025
    Article
  13. SGLT2-Inhibition in Patients With Alport Syndrome.Kidney international reports · 2024
    Article
  14. Article
  15. Linking Basement Membrane and Slit Diaphragm in Drosophila Nephrocytes.Journal of the American Society of Nephrology : JASN · 2024
    Article
  16. Article
  17. Genetic determinants of renal scarring in children with febrile UTI.Pediatric nephrology (Berlin, Germany) · 2024
    Article
  18. Article
  19. Progress in therapeutic targets on podocyte for Alport syndrome.Journal of translational internal medicine · 2024
    Article
  20. Article

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

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.

Dale R AbrahamsonDepartment of Anatomy and Cell Biology, The Kidney Institute, University of Kansas Medical Center, 3901 Rainbow Boulevard, MS 3038, Kansas City, KS 66160, USA. dabrahamson@kumc.edu
Billy G Hudson
Larysa Stroganova
Dorin-Bogdan Borza
Patricia L St John
University of Kansas Medical Center · US

Funding

TYPE IV COLLAGEN, LAMININS, AND INTEGRINS IN NORMAL AND DISEASED GLOMERULIP01DK065123 · NIDDK · VANDERBILT UNIVERSITY · PI HUDSON, BILLY GERALD · 2003 to 2012
$12.9M
U KANSAS COBRE ADMINISTRATIVE COREP20RR024214 · NCRR · UNIVERSITY OF KANSAS MEDICAL CENTER · PI ABRAHAMSON, DALE R · 2007 to 2011
$10.8M
RECEPTOR/LIGAND SIGNALS FOR KIDNEY VASCULAR DEVELOPMENTR01DK052483 · NIDDK · UNIVERSITY OF KANSAS MEDICAL CENTER · PI ABRAHAMSON, DALE R · 1997 to 2008
$2.0M
Molecular pathogenesis of anti-glomerular basement membrane nephritisR01DK080799 · NIDDK · VANDERBILT UNIVERSITY · PI BORZA, DORIN-BOGDAN · 2008 to 2012
$1.6M
NCRR NIH HHS P20 RR024214NCRR NIH HHS RR024214NIDDK NIH HHS DK052483NIDDK NIH HHS DK065123NIDDK NIH HHS P01 DK065123NIDDK NIH HHS R01 DK052483NIDDK NIH HHS R01 DK080799
6 · The paper itself

Abstract

Laminin and type IV collagen composition of the glomerular basement membrane changes during glomerular development and maturation. Although it is known that both glomerular endothelial cells and podocytes produce different laminin isoforms at the appropriate stages of development, the cellular origins for the different type IV collagen heterotrimers that appear during development are unknown. Here, immunoelectron microscopy demonstrated that endothelial cells, mesangial cells, and podocytes of immature glomeruli synthesize collagen alpha 1 alpha 2 alpha1(IV). However, intracellular labeling revealed that podocytes, but not endothelial or mesangial cells, contain collagen alpha 3 alpha 4 alpha 5(IV). To evaluate the origins of collagen IV further, we transplanted embryonic kidneys from Col4a3-null mutants (Alport mice) into kidneys of newborn, wildtype mice. Hybrid glomeruli within grafts containing numerous host-derived, wildtype endothelial cells never expressed collagen alpha 3 alpha 4 alpha 5(IV). Finally, confocal microscopy of glomeruli from infant Alport mice that had been dually labeled with anti-collagen alpha 5(IV) and the podocyte marker anti-GLEPP1 showed immunolabeling exclusively within podocytes. Together, these results indicate that collagen alpha 3 alpha 4 alpha 5(IV) originates solely from podocytes; therefore, glomerular Alport disease is a genetic defect that manifests specifically within this cell type.

Indexed as

AnimalsAutoantigensCollagen Type IVDisease Models, AnimalEndotheliumKidney GlomerulusMesangial CellsMiceMice, KnockoutNephritis, HereditaryPodocytesAutoantigensCollagen Type IVtype IV collagen alpha3 chain

Identifiers

PMID19423686
PMCPMC2709682
OpenAlexW2157384744

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.