Evidence map›Paper›PMID 12015290›Full record

ArticleDevelopment (Cambridge, England)2002

The zinc-finger transcription factor Klf4 is required for terminal differentiation of goblet cells in the colon.

Jonathan P Katz, Nathalie Perreault, Bree G Goldstein, Catherine S Lee, Patricia A Labosky, Vincent W Yang, Klaus H Kaestner

Open access · greenAbstract read
In one paragraph

Article in Development (Cambridge, England), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 340 papers.

0numbers the graph read from it
0cells of the map it votes in
340citing papers in PubMed
6.5field-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

340 citing papers in PubMed, 579 citations in OpenAlex.

  1. Endothelial KLF4 depletion drives age-related neurovascular dysfunction and neuropsychiatric impairment.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
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  8. Article
  9. Cells · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. KLF feedback loops in innate immunity.Frontiers in immunology · 2025
    Review
  17. Frontiers in microbiology · 2025
    Article
  18. Article
  19. Article
  20. Review

280 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

7 authors at 2 institutions in 1 country.

Jonathan P KatzDepartment of Genetics, University of Pennsylvania School of Medicine, 560 Clinical Research Building, 415 Curie Blvd, Philadelphia 19104-6145, USA.
Nathalie Perreault
Bree G Goldstein
Catherine S Lee
Patricia A Labosky
Vincent W Yang
Klaus H Kaestner
University of Pennsylvania · USEmory University · US

Funding

TRANSGENIC AND CHIMERIC MOUSE COREP30DK050306 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI REBECCA G WELLS · 1997 to 2026
$32.5M
REGULATION OF INTESTINAL EPITHELIAL CELL PROLIFERATIONR01DK052230 · NIDDK · STATE UNIVERSITY NEW YORK STONY BROOK · PI Vincent W Yang · 1997 to 2026
$8.7M
MECHANISMS OF INTESTINAL TUMORIGENESISR01CA084197 · NCI · STATE UNIVERSITY NEW YORK STONY BROOK · PI YANG, VINCENT W · 2000 to 2020
$7.5M
REGULATORY CASCADES IN GASTROINTESTINAL PROLIFERATIONR01DK053839 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI KAESTNER, KLAUS H · 1998 to 2011
$4.5M
REGULATORY CASCADES IN GASTROINTESTINAL PROLIFERATIONK08DK002809 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI KATZ, JONATHAN P · 2000 to 2004
$647k
NCI NIH HHS R01 CA084197NCI NIH HHS R01 CA84197NIDDK NIH HHS K08 DK02809-01NIDDK NIH HHS P30 DK050306NIDDK NIH HHS P30 DK50306NIDDK NIH HHS R01 DK052230NIDDK NIH HHS R01 DK053839NIDDK NIH HHS R01 DK52230NIDDK NIH HHS R01 DK53839
6 · The paper itself

Abstract

Klf4 (formerly GKLF) is a zinc-finger transcription factor expressed in the epithelia of the skin, lungs, gastrointestinal tract and several other organs. In vitro studies have suggested that Klf4 plays an important role in cell proliferation and/or differentiation. Mice homozygous for a null mutation in Klf4 die within 15 hours of birth and show selective perturbation of late-stage differentiation structures in the epidermis, but the function of Klf4 in the gastrointestinal tract has not been investigated. To address this issue, we have generated Klf4(-/-) mice by homologous recombination in embryonic stem cells. In this study, we provide the first in vivo evidence that Klf4 is a goblet cell-specific differentiation factor in the colon. Klf4(-/-) mice exhibit normal cell proliferation and cell death rates in the colon on postnatal day 1. However, Klf4(-/-) mice demonstrate a 90% decrease in the number of goblet cells in the colon, show abnormal expression of the goblet cell-specific marker Muc2 by in situ hybridization, have abnormal staining of the colonic epithelium with Alcian Blue for acidic mucins, and lack normal goblet cell morphology by ultrastructural analysis. All other epithelial cell types are present in the colon of Klf4(-/-) mice. In summary, Klf4 plays a crucial role in colonic epithelial cell differentiation in vivo.

Indexed as

AnimalsBase SequenceCell DeathCell DifferentiationCell DivisionColonDNA-Binding ProteinsExonsGenotypeGoblet CellsIntestinal MucosaKruppel-Like Factor 4Kruppel-Like Transcription FactorsMiceMice, KnockoutPolymerase Chain ReactionDNA-Binding ProteinsKlf4 protein, mouseKruppel-Like Factor 4Kruppel-Like Transcription FactorsTranscription Factors

Identifiers

PMID12015290
PMCPMC2225535
OpenAlexW2106896953

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.