Evidence map›Paper›PMID 22930590›Full record

ArticleBioEssays : news and reviews in molecular, cellular and developmental biology2012

An epithelial tissue in Dictyostelium challenges the traditional origin of metazoan multicellularity.

Daniel J Dickinson, W James Nelson, William I Weis

Abstract read
In one paragraph

Article in BioEssays : news and reviews in molecular, cellular and developmental biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Queue Gaps Among the IQGAPs inInternational journal of molecular sciences · 2026
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  3. Reduced cell-substrate adhesion formation promotes cell migration inbioRxiv : the preprint server for biology · 2025
    Article
  4. The NaBiophysical reviews · 2023
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Interacting-heads motif has been conserved as a mechanism of myosin II inhibition since before the origin of animals.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  13. Phylogenetic evidence for the modular evolution of metazoan signalling pathways.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Daniel J DickinsonProgram in Cancer Biology, Stanford University, Stanford, CA, USA. ddickins@live.unc.edu
W James Nelson
William I Weis

Funding

Topogenesis of NA/K-ATPASE in Polarized Epithelial CellsR37GM035527 · NIGMS · STANFORD UNIVERSITY · PI NELSON, W. JAMES · 2003 to 2012
$7.4M
CATENINS, CADHERINS AND THEIR INTERACTIONSR01GM056169 · NIGMS · STANFORD UNIVERSITY · PI WEIS, WILLIAM I · 1997 to 2012
$5.0M
Topogenesis of Na/K-ATPase in Polarized MDCK Epithelial CellsR01GM035527 · NIGMS · STANFORD UNIVERSITY · PI NELSON, W. JAMES · 1986 to 2015
$3.3M
NIGMS NIH HHS GM035527NIGMS NIH HHS GM56169NIGMS NIH HHS R01 GM035527NIGMS NIH HHS R01 GM056169NIGMS NIH HHS R37 GM035527
6 · The paper itself

Abstract

We hypothesize that aspects of animal multicellularity originated before the divergence of metazoans from fungi and social amoebae. Polarized epithelial tissues are a defining feature of metazoans and contribute to the diversity of animal body plans. The recent finding of a polarized epithelium in the non-metazoan social amoeba Dictyostelium discoideum demonstrates that epithelial tissue is not a unique feature of metazoans, and challenges the traditional paradigm that multicellularity evolved independently in social amoebae and metazoans. An alternative view, presented here, is that the common ancestor of social amoebae, fungi, and animals spent a portion of its life cycle in a multicellular state and possessed molecular machinery necessary for forming an epithelial tissue. Some descendants of this ancestor retained multicellularity, while others reverted to unicellularity. This hypothesis makes testable predictions regarding tissue organization in close relatives of metazoans and provides a novel conceptual framework for studies of early animal evolution.

Indexed as

Cell PolarityAnimalsBiological EvolutionDictyosteliumEpithelial CellsEpitheliumHumans

Identifiers

PMID22930590
PMCPMC3517009

What OpenQuestion holds

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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.