Evidence map›Paper›PMID 34156924›Full record

ArticleeLife2021

Planarian stem cells sense the identity of the missing pharynx to launch its targeted regeneration.

Tisha E Bohr, Divya A Shiroor, Carolyn E Adler

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  4. Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
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  9. A PAK family kinase and the Hippo/Yorkie pathway modulate WNT signaling to functionally integrate body axes during regeneration.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Principles of regeneration revealed by the planarian eye.Current opinion in cell biology · 2021
    Review
  16. Review
  17. Article
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

3 authors at 1 institution in 1 country.

Tisha E BohrDepartment of Molecular Medicine, Cornell University College of Veterinary Medicine, Ithaca, United States.ORCID 0000-0003-2336-407X
Divya A ShiroorDepartment of Molecular Medicine, Cornell University College of Veterinary Medicine, Ithaca, United States.ORCID 0000-0001-9085-5675
Carolyn E AdlerDepartment of Molecular Medicine, Cornell University College of Veterinary Medicine, Ithaca, United States.ORCID 0000-0002-3883-0654
Cornell University · US

Funding

Mechanisms driving stem cell responses to injury in planariansR01GM139933 · NIGMS · CORNELL UNIVERSITY · PI ADLER, CAROLYN ELIZABETH · 2020 to 2024
$2.2M
Zeiss LSM710 Confocal Microscope for Shared Imaging FacilityS10RR025502 · NCRR · CORNELL UNIVERSITY · PI WILLIAMS, REBECCA M · 2009 to 2009
$500k
NCRR NIH HHS S10 RR025502NIGMS NIH HHS R01 GM139933
6 · The paper itself

Abstract

In order to regenerate tissues successfully, stem cells must detect injuries and restore missing cell types through largely unknown mechanisms. Planarian flatworms have an extensive stem cell population responsible for regenerating any organ after amputation. Here, we compare planarian stem cell responses to different injuries by either amputation of a single organ, the pharynx, or removal of tissues from other organs by decapitation. We find that planarian stem cells adopt distinct behaviors depending on what tissue is missing to target progenitor and tissue production towards missing tissues. Loss of non-pharyngeal tissues only increases non-pharyngeal progenitors, while pharynx removal selectively triggers division and expansion of pharynx progenitors. By pharmacologically inhibiting either mitosis or activation of the MAP kinase ERK, we identify a narrow window of time during which stem cell division and ERK signaling produces pharynx progenitors necessary for regeneration. These results indicate that planarian stem cells can tailor their output to match the regenerative needs of the animal.

Indexed as

Signal TransductionAnimalsExtracellular Signal-Regulated MAP KinasesHelminth ProteinsMitosisPharynxPlanariansRegenerationStem CellsExtracellular Signal-Regulated MAP KinasesHelminth Proteinsdevelopmental biologyFoxAmap kinase pathwayplanarianregenerationregenerative medicinestem cells

Identifiers

PMID34156924
PMCPMC8219383
OpenAlexW3170586779

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.