Evidence map›Paper›PMID 17895386›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Inner ear hair cells produced in vitro by a mesenchymal-to-epithelial transition.

Zhengqing Hu, Jeffrey T Corwin

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Postnatal Changes of Neural Stem Cells in the Mammalian Auditory Cortex.International journal of molecular sciences · 2021
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  20. Axonemal positioning and orientation in three-dimensional space for primary cilia: what is known, what is assumed, and what needs clarification.Developmental dynamics : an official publication of the American Association of Anatomists · 2011
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Zhengqing HuDepartment of Neuroscience, University of Virginia School of Medicine, 409 Lane Road, Charlottesville, VA 22908-1392, USA. zh3a@virginia.edu
Jeffrey T Corwin

Funding

GROWTH AND REGENERATION IN THE INNER EARR01DC000200 · NIDCD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI CORWIN, JEFFREY T · 1989 to 2018
$9.7M
Stem Cells and Repair in Auditory and Vestibular SystemsR01DC006182 · NIDCD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI CORWIN, JEFFREY T · 2003 to 2007
$2.5M
MINORITY PREDOCTORAL FELLOWSHIP PROGRAM--NIGMSF31DC000200 · NIDCD · UNIVERSITY OF CALIFORNIA IRVINE · PI PEREZ, CELIA E · 1994 to 1996
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NIDCD NIH HHS DC00200NIDCD NIH HHS DC006182NIDCD NIH HHS F31 DC000200NIDCD NIH HHS R01 DC000200NIDCD NIH HHS R01 DC006182
6 · The paper itself

Abstract

Sensory hair cell loss is a major contributor to disabling hearing and balance deficits that affect >250 million people worldwide. Sound exposures, infections, drug toxicity, genetic disorders, and aging all can cause hair cell loss and lead to permanent sensory deficits. Progress toward treatments for these deficits has been limited, in part because hair cells have only been obtainable via microdissection of the anatomically complex internal ear. Attempts to produce hair cells in vitro have resulted in reports of some success but have required transplantation into embryonic ears or coculturing with other tissues. Here, we show that avian inner ear cells can be cultured and passaged for months, frozen, and expanded to large numbers without other tissues. At any point from passage 6 up to at least passage 23, these cultures can be fully dissociated and then aggregated in suspension to induce a mesenchymal-to-epithelial transition that reliably yields new polarized sensory epithelia. Those epithelia develop numerous hair cells that are crowned by hair bundles, composed of a single kinocilium and an asymmetric array of stereocilia. These hair cells exhibit rapid permeance to FM1-43, a dye that passes through open mechanotransducing channels. Because a vial of frozen cells can now provide the capacity to produce bona fide hair cells completely in vitro, these discoveries should open new avenues of research that may ultimately contribute to better treatments for hearing loss and other inner ear disorders.

Indexed as

Cell Culture TechniquesCell DifferentiationAnimalsCells, CulturedChickensEar, InnerEpitheliumFluorescent DyesHair Cells, Auditory, InnerMesodermPermeabilityPyridinium CompoundsQuaternary Ammonium CompoundsFluorescent DyesFM1 43Pyridinium CompoundsQuaternary Ammonium Compounds

Identifiers

PMID17895386
PMCPMC1994140

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.