Evidence map›Paper›PMID 32090986›Full record

ArticleJournal of visualized experiments : JoVE2020

Dextran Labeling and Uptake in Live and Functional Murine Cochlear Hair Cells.

Angela Ballesteros, Kenton J Swartz

Open access · greenAbstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.1field-weighted citation impact, top 63% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. Article
  3. Cichoric Acid May Play a Role in Protecting Hair Cells from Ototoxic Drugs.International journal of molecular sciences · 2022
    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

2 authors at 2 institutions in 1 country.

Angela BallesterosMolecular Physiology and Biophysics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health; angela.ballesteros@nih.gov.
Kenton J SwartzMolecular Physiology and Biophysics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health.
National Institute of Neurological Disorders and Stroke · USNational Institutes of Health · US

Funding

Gating mechanisms and pharmacology of voltage-activated ion channelsZIANS002945 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON · 2009 to 2025
$44.2M
PROBING THE STRUCTURE AND FUNCTION OF POTASSIUM AND CALCIUM CHANNELSZ01NS002945 · NINDS · NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON J · 1997 to 2008
$1.9M
Intramural NIH HHS Z01 NS002945
6 · The paper itself

Abstract

The hair cell mechanotransduction (MET) channel plays an important role in hearing. However, the molecular identity and structural information of MET remain unknown. Electrophysiological studies of hair cells revealed that the MET channel has a large conductance and is permeable to relatively large fluorescent cationic molecules, including some styryl dyes and Texas Red-labeled aminoglycoside antibiotics. In this protocol, we describe a method to visualize and evaluate the uptake of fluorescent dextrans in hair cells of the organ of Corti explants that can be used to assay for functional MET channels. We found that 3 kDa Texas Red-labeled dextran specifically labels functional auditory hair cells after 1-2 h incubation. In particular, 3 kDa dextran labels the two shorter stereocilia rows and accumulates in the cell body in a diffuse pattern when functional MET channels are present. An additional vesicle-like pattern of labeling was observed in the cell body of hair cells and surrounding supporting cells. Our data suggest that 3 kDa Texas-Red dextran can be used to visualize and study two pathways for cellular dye uptake; a hair cell-specific entry route through functional MET channels and endocytosis, a pattern also available to larger dextran.

Indexed as

AnimalsDextransEndocytosisFluorescent DyesHair Cells, AuditoryMechanotransduction, CellularMice, Inbred C57BLStereociliaXanthenesDextransFluorescent DyesTexas redXanthenes

Identifiers

PMID32090986
PMCPMC11384666
OpenAlexW3004854111

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.