Evidence map›Paper›PMID 21677172›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011

Mature mice lacking Rbl2/p130 gene have supernumerary inner ear hair cells and supporting cells.

Sonia M Rocha-Sanchez, Laura R Scheetz, Melissa Contreras, Michael D Weston, Megan Korte, Joann McGee, Edward J Walsh

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. AAV-regulatedMolecular therapy. Nucleic acids · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Development and regeneration of vestibular hair cells in mammals.Seminars in cell & developmental biology · 2017
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Inner ear supporting cells: rethinking the silent majority.Seminars in cell & developmental biology · 2013
    Review
  15. Review
  16. Review
  17. Correct timing of proliferation and differentiation is necessary for normal inner ear development and auditory hair cell viability.Developmental dynamics : an official publication of the American Association of Anatomists · 2013
    Article
  18. Article
  19. Article
  20. Review
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.

Sonia M Rocha-SanchezDepartment of Oral Biology, Creighton University School of Dentistry, Omaha, Nebraska 68178, USA. ssanchez@creighton.edu
Laura R Scheetz
Melissa Contreras
Michael D Weston
Megan Korte
Joann McGee
Edward J Walsh
Creighton University · USBoys Town National Research Hospital · US

Funding

TRANSGENIC EXPRESSION ANALYSIS OF MIRNA-144P20RR018788 · NCRR · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI NICHOLS, DAVID G · 2003 to 2011
$16.5M
Replacing an Animal Resource Facility Cage Washer.G20RR024001 · NCRR · CREIGHTON UNIVERSITY · PI DRESCHER, KRISTEN · 2007 to 2007
$638k
Role of Supporting Cells in Cochlear Hair Cell RegenerationR03DC009989 · NIDCD · CREIGHTON UNIVERSITY · PI ROCHA-SANCHEZ, SONIA M · 2009 to 2011
$426k
Characterization of a Temporally Controlled Dominant-Negative RB1 Mouse ModelR21OD019745 · OD · CREIGHTON UNIVERSITY · PI ROCHA-SANCHEZ, SONIA M · 2015 to 2016
$417k
NCRR NIH HHS G20 RR024001NCRR NIH HHS G20RR024001NCRR NIH HHS P20 RR018788NCRR NIH HHS P20 RR018788-06ANIDCD NIH HHS 5R03DC9989NIDCD NIH HHS R03 DC009989NIH HHS R21 OD019745
6 · The paper itself

Abstract

Adult mammalian auditory hair cells (HCs) and their associated supporting cells (SCs) do not proliferate, and HC death leads to irreversible neurosensory hearing loss and balance impairment. In nonmammalian vertebrates, loss of HCs induces mitotic proliferation of adjacent nonsensory SCs and/or direct SC transdifferentiation to generate replacement cells. This results in the structural and functional recovery of the nonmammalian sensory systems. Potential replacement of mammalian auditory HCs, either by transplanting cells or by transforming existing cells through molecular therapy, has long been proposed. However, HC replacement strategies with clear therapeutic potential remain elusive. The retinoblastoma (pRB) family of cell cycle regulators, Rb1, Rbl1 (p107), and Rbl2 (p130), regulate the G(1)- to S-phase transition in proliferating cells. In the inner ear, the biochemical and molecular pathways involving pRBs, particularly p107 and p130, are relatively unexplored and their therapeutic suitability is yet to be determined. In this study, we analyzed the cochleae of adult p130 knock-out (p130(-/-)) mice and showed that lack of the p130 gene results in extra rows of HCs and SCs in the more apical regions of the cochlea. No evidence of transdifferentiation of these supernumerary SCs into HCs was observed in the p130(-/-) mouse. Nevertheless, unscheduled proliferation of SCs in the adult p130(-/-) cochlea coupled to downregulation of bona fide cell cycle inhibitors provides a mechanistic basis for the role of p130 as a regulator of SC and HC mitotic quiescence in the more apical regions of the cochlea. Interestingly, p130(-/-) mice exhibited nearly normal peripheral auditory sensitivity.

Indexed as

Acoustic StimulationAge FactorsAnimalsAnimals, NewbornCell ProliferationEar, InnerEmbryo, MammalianEvoked Potentials, Auditory, Brain StemFemaleGene Expression Regulation, DevelopmentalHair Cells, Auditory, InnerImmunoprecipitationLabyrinth Supporting CellsMaleMiceMice, Inbred C57BLMyo7a protein, mouseMyosinsMyosin VIIaNgfr protein, mouseReceptors, Nerve Growth FactorRetinoblastoma ProteinSox2 protein, mouseSOXB1 Transcription FactorsTubulin

Identifiers

PMID21677172
PMCPMC3132102
OpenAlexW1993394780

What OpenQuestion holds

Textmetadata
LicenceTDM
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.