Evidence map›Paper›PMID 17716843›Full record

ArticleHearing research2007

Closure of supporting cell scar formations requires dynamic actin mechanisms.

Andrew J Hordichok, Peter S Steyger

Open access · greenAbstract read
In one paragraph

Article in Hearing research, 2007. 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
0.8field-weighted citation impact, top 32% 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, 24 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. How to bury the dead: elimination of apoptotic hair cells from the hearing organ of the mouse.Journal of the Association for Research in Otolaryngology : JARO · 2014
    Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Intracellular mechanisms of aminoglycoside-induced cytotoxicity.Integrative biology : quantitative biosciences from nano to macro · 2011
    Review
  13. Supporting cells eliminate dying sensory hair cells to maintain epithelial integrity in the avian inner ear.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  14. Article
  15. Recent advances in hair cell regeneration research.Current opinion in otolaryngology & head and neck surgery · 2008
    Review
  16. Article
  17. 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

2 authors at 1 institution in 1 country.

Andrew J HordichokOregon Hearing Research Center, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
Peter S Steyger
Oregon Health & Science University · US

Funding

PORTLAND AREA COMMUNICATION RESEARCH CORE CENTERP30DC005983 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI NUTTALL, ALFRED L · 2003 to 2017
$9.0M
HAIR CELL RESPONSES TO OTOTOXIC DRUGSR01DC004555 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI STEYGER, PETER STEPHEN · 2001 to 2020
$6.6M
NIDCD NIH HHS P30 DC005983NIDCD NIH HHS P30 DC05983NIDCD NIH HHS R01 DC004555NIDCD NIH HHS R01 DC04555
6 · The paper itself

Abstract

In many vertebrate inner ear sensory epithelia, dying sensory hair cells are extruded, and the apices of surrounding supporting cells converge to re-seal the epithelial barrier between the electrochemically-distinct endolymph and perilymph. These cellular mechanisms remain poorly understood. Dynamic microtubular mechanisms have been proposed for hair cell extrusion; while contractile actomyosin-based mechanisms are required for cellular extrusion and closure in epithelial monolayers. The hypothesis that cytoskeletal mechanisms are required for hair cell extrusion and supporting cell scar formation was tested using bullfrog saccules incubated with gentamicin (6h), and allowed to recover (18h). Explants were then fixed, labeled for actin and cytokeratins, and viewed with confocal microscopy. To block dynamic cytoskeletal processes, disruption agents for microtubules (colchicine, paclitaxel) myosin (Y-27632, ML-9) or actin (cytochalasin D, latrunculin A) were added during treatment and recovery. Microtubule disruption agents had no effect on hair cell extrusion or supporting cell scar formation. Myosin disruption agents appeared to slow down scar formation but not hair cell extrusion. Actin disruption agents blocked scar formation, and largely prevented hair cell extrusion. These data suggest that actin-based cytoskeletal processes are required for hair cell extrusion and supporting cell scar formation in bullfrog saccules.

Indexed as

ActinsAmidesAnimalsAnti-Bacterial AgentsAzepinesBridged Bicyclo Compounds, HeterocyclicCell DeathCicatrixColchicineCytochalasin DGentamicinsHair Cells, AuditoryImmunohistochemistryKeratinsMicroscopy, ConfocalMicroscopy, Electron, TransmissionActinsAmidesAnti-Bacterial AgentsAzepinesBridged Bicyclo Compounds, HeterocyclicColchicineCytochalasin DGentamicinsKeratinslatrunculin AML 9MyosinsPaclitaxelPyridinesThiazolidinesTubulin ModulatorsY 27632

Identifiers

PMID17716843
PMCPMC2665176
OpenAlexW2030239298

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.