Evidence map›Paper›PMID 29557843›Full record

ArticleOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology2018

A Xenograft Model of Vestibular Schwannoma and Hearing Loss.

Christine T Dinh, Olena Bracho, Christine Mei, Esperanza Bas, Cristina Fernandez-Valle, Fred Telischi, Xue-Zhong Liu

Open access · greenAbstract read
In one paragraph

Article in Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. RAD51 Inhibitor and Radiation Toxicity in Vestibular Schwannoma.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2022
    Article
  9. Anesthesia protocol for ear surgery in Wistar rats (animal research).Animal models and experimental medicine · 2022
    Article
  10. Article
  11. Article
  12. Fluorescent Detection of Merlin-deficient Schwann Cells and Primary Human Vestibular Schwannoma Cells Using Sodium Fluorescein.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2018
    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

7 authors at 2 institutions in 1 country.

Christine T DinhDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
Olena BrachoDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
Christine MeiDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
Esperanza BasDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
Cristina Fernandez-ValleBurnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida.
Fred TelischiDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
Xue-Zhong LiuDepartment of Otolaryngology, University of Miami Miller School of Medicine, Miami.
University of Miami · USFlorida College · US

Funding

Identification of Novel Drug Targets For Use in Preventing Deafness Caused by NF2R01DC010189 · NIDCD · UNIVERSITY OF CENTRAL FLORIDA · PI FERNANDEZ-VALLE, CRISTINA MARIA · 2009 to 2013
$1.4M
NIDCD NIH HHS R01 DC010189
6 · The paper itself

Abstract

hypothesisMicrosurgical implantation of mouse merlin-deficient Schwann cells (MD-SC) into the cerebellopontine angle of immunodeficient rats will initiate tumor formation, hearing loss, and vestibular dysfunction.

backgroundThe progress in identifying effective drug therapies for treatment of Neurofibromatosis type II (NF2) is limited by the availability of animal models of VS that develop hearing loss and imbalance.

methodsA microsurgical technique for implanting MD-SCs onto the cochleovestibular nerve of rats was developed. Ten Rowett Nude rats were implanted with either ∼10 MD-SCs expressing luciferase (N = 5) or vehicle (N = 5). Rats received bioluminescence imaging, auditory brainstem response testing, and were observed for head tilt every 2 weeks after surgery, for a total of 6 weeks. Tumors were harvested and processed with hematoxylin & eosin staining and immunohistochemistry was performed for S100.

resultsRats implanted with MD-SCs developed significantly higher tumor bioluminescence measurements and hearing threshold shifts at multiple frequencies by the 4th and 6th weeks post-implantation, compared with control rats. Rats implanted with MD-SCs also developed gross tumor. The tumor volume was significantly greater than nerve volumes obtained from rats in the control group. All rats with tumors developed a head tilt, while control rats had no signs of vestibular dysfunction. Tumors demonstrated histological features of schwannoma and express S100.

conclusionUsing this microsurgical technique, this xenograft rat model of VS develops tumors involving the cochleovestibular nerve, shifts in hearing thresholds, and vestibular dysfunction. This animal model can be used to investigate tumor-mediated hearing loss and perform preclinical drug studies for NF2.

Indexed as

AnimalsDisease Models, AnimalHearing LossMiceNeurofibromatosis 2Neurofibromin 2Neuroma, AcousticRatsSchwann CellsTransplantation, HeterologousNeurofibromin 2

Identifiers

PMID29557843
PMCPMC5940567
OpenAlexW2802398237

What OpenQuestion holds

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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.