Evidence map›Paper›PMID 15843406›Full record

ArticleDevelopment (Cambridge, England)2005

The retinoblastoma gene pathway regulates the postmitotic state of hair cells of the mouse inner ear.

Johanna Mantela, Zhe Jiang, Jukka Ylikoski, Bernd Fritzsch, Eldad Zacksenhaus, Ulla Pirvola

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Development (Cambridge, England), 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

70 citing papers in PubMed, 137 citations in OpenAlex.

  1. Article
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  15. Article
  16. Development and regeneration of vestibular hair cells in mammals.Seminars in cell & developmental biology · 2017
    Review
  17. Article
  18. Review
  19. Article
  20. Review

10 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

6 authors at 4 institutions in 3 countries.

Johanna MantelaInstitute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.
Zhe Jiang
Jukka Ylikoski
Bernd Fritzsch
Eldad Zacksenhaus
Ulla Pirvola
University Health Network · CAUniversity of Helsinki · FICreighton University · USHelsinki Institute of Physics · FI

Funding

DISSECTING THE EAR NEUROSENSORY DEVELOPMENT.R01DC005590 · NIDCD · UNIVERSITY OF IOWA · PI FRITZSCH, BERND · 2002 to 2010
$3.3M
NIDCD NIH HHS R01 DC005590
6 · The paper itself

Abstract

Precursors of cochlear and vestibular hair cells of the inner ear exit the cell cycle at midgestation. Hair cells are mitotically quiescent during late-embryonic differentiation stages and postnatally. We show here that the retinoblastoma gene Rb and the encoded protein pRb are expressed in differentiating and mature hair cells. In addition to Rb, the cyclin dependent kinase inhibitor (CKI) p21 is expressed in developing hair cells, suggesting that p21 is an upstream effector of pRb activity. p21 apparently cooperates with other CKIs, as p21-null mice exhibited an unaltered inner ear phenotype. By contrast, Rb inactivation led to aberrant hair cell proliferation, as analysed at birth in a loss-of-function/transgenic mouse model. Supernumerary hair cells expressed various cell type-specific differentiation markers, including components of stereocilia. The extent of alterations in stereociliary bundle morphology ranged from near-normal to severe disorganization. Apoptosis contributed to the mutant phenotype, but did not compensate for the production of supernumerary hair cells, resulting in hyperplastic sensory epithelia. The Rb-null-mediated proliferation led to a distinct pathological phenotype, including multinucleated and enlarged hair cells, and infiltration of hair cells into the mesenchyme. Our findings demonstrate that the pRb pathway is required for hair cell quiescence and that manipulation of the cell cycle machinery disrupts the coordinated development within the inner ear sensory epithelia.

Indexed as

Gene Expression Regulation, DevelopmentalSignal TransductionAnimalsApoptosisCell Cycle ProteinsCyclin-Dependent Kinase Inhibitor p21Hair Cells, AuditoryHistological TechniquesImmunohistochemistryIn Situ HybridizationIn Situ Nick-End LabelingMiceMice, TransgenicMitosisRetinoblastomaCdkn1a protein, mouseCell Cycle ProteinsCyclin-Dependent Kinase Inhibitor p21Non-programmatic

Identifiers

PMID15843406
PMCPMC1242168
OpenAlexW1978034376

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.