Evidence map›Paper›PMID 23766539›Full record

ArticleJournal of the American Society of Nephrology : JASN2013

Wnt4/β-catenin signaling in medullary kidney myofibroblasts.

Derek P DiRocco, Akio Kobayashi, Makoto M Taketo, Andrew P McMahon, Benjamin D Humphreys

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
7.9field-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

99 citing papers in PubMed, 171 citations in OpenAlex.

  1. Review
  2. Article
  3. Sema3dInternational journal of biological sciences · 2026
    Article
  4. The kidney stroma in development and disease.Nature reviews. Nephrology · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Kidney fibrosis: from mechanisms to therapeutic medicines.Signal transduction and targeted therapy · 2023
    Review
  18. Article
  19. Article
  20. Review

39 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 5 institutions in 2 countries.

Derek P DiRoccoRenal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Akio Kobayashi
Makoto M Taketo
Andrew P McMahon
Benjamin D Humphreys
Brigham and Women's Hospital · USBroad Center · USHarvard Stem Cell Institute · USHarvard University · USKyoto University · JP

Funding

Cell Interactions in Development of the Mammalian KidneyR37DK054364 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MCMAHON, ANDREW P. · 2008 to 2017
$7.0M
CELL INTERACTIONS IN DEVELOPMENT OF THE MAMMALIAN KIDNEYR01DK054364 · NIDDK · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MCMAHON, ANDREW P. · 1998 to 2022
$6.9M
Hedgehog Signaling in Kidney Homeostasis and RepairR01DK088923 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI HUMPHREYS, BENJAMIN D. · 2010 to 2014
$2.0M
Genetic Regulation of Nephron Progenitor Cells in the Mammalian KidneyR01DK094933 · NIDDK · UNIVERSITY OF WASHINGTON · PI KOBAYASHI, AKIO · 2013 to 2017
$1.9M
NIDDK NIH HHS DK054364NIDDK NIH HHS DK088923NIDDK NIH HHS R01 DK054364NIDDK NIH HHS R01 DK088923NIDDK NIH HHS R01 DK094933NIDDK NIH HHS R37 DK054364
6 · The paper itself

Abstract

Injury to the adult kidney induces a number of developmental genes thought to regulate repair, including Wnt4. During kidney development, early nephron precursors and medullary stroma both express Wnt4, where it regulates epithelialization and controls smooth muscle fate, respectively. Expression patterns and roles for Wnt4 in the adult kidney, however, remain unclear. In this study, we used reporters, lineage analysis, and conditional knockout or activation of the Wnt/β-catenin pathway to investigate Wnt4 in the adult kidney. Proliferating, medullary, interstitial myofibroblasts strongly expressed Wnt4 during renal fibrosis, whereas tubule epithelia, except for the collecting duct, did not. Exogenous Wnt4 drove myofibroblast differentiation of a pericyte-like cell line, suggesting that Wnt4 might regulate pericyte-to-myofibroblast transition through autocrine signaling. However, conditional deletion of Wnt4 in interstitial cells did not reduce myofibroblast proliferation, cell number, or myofibroblast gene expression during fibrosis. Because the injured kidney expresses multiple Wnt ligands that might compensate for the absence of Wnt4, we generated a mouse model with constitutive activation of canonical Wnt/β-catenin signaling in interstitial pericytes and fibroblasts. Kidneys from these mice exhibited spontaneous myofibroblast differentiation in the absence of injury. Taken together, Wnt4 expression in renal fibrosis defines a population of proliferating medullary myofibroblasts. Although Wnt4 may be dispensable for myofibroblast transformation, canonical Wnt signaling through β-catenin stabilization is sufficient to drive spontaneous myofibroblast differentiation in interstitial pericytes and fibroblasts, emphasizing the importance of this pathway in renal fibrosis.

Indexed as

Animalsbeta CateninCell DifferentiationCell ProliferationCells, CulturedDisease Models, AnimalGene DeletionIn Vitro TechniquesKidney MedullaMiceMice, Inbred C57BLMice, KnockoutMyofibroblastsReperfusion InjurySignal TransductionUreteral Obstructionbeta CateninWnt4 Protein

Identifiers

PMID23766539
PMCPMC3752942
OpenAlexW2170248012

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.