Dissection of Adult Mouse Stria Vascularis for Single-Nucleus Sequencing or Immunostaining

Dillon Strepay; Rafal Olszewski; Ian Taukulis; J. Dixon Johns; Shoujun Gu; Michael Hoa

doi:10.3791/65254

Dissection de la strie vasculaire de souris adulte pour le séquençage mononucléaire ou l’immunoma...

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Dissection of Adult Mouse Stria Vascularis for Single-Nucleus Sequencing or Immunostaining

Dissection de la strie vasculaire de souris adulte pour le séquençage mononucléaire ou l’immunomarquage

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08:51 min

April 21, 2023

DOI: 10.3791/65254-v

Dillon Strepay¹, Rafal Olszewski¹, Ian Taukulis¹, J. Dixon Johns¹, Shoujun Gu¹, Michael Hoa¹

¹Auditory Development and Restoration Program, National Institute on Deafness and Other Communication Disorders,National Institutes of Health

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Overview

This study investigates the stria vascularis, a critical structure in the cochlea responsible for generating the endocochlear potential. Using adult mice, the research focuses on dissecting the stria vascularis for single-nucleus sequencing and immunostaining to explore its role in hearing stability and disorders.

Key Study Components

Research Area

Auditory system biology
Hearing disorders research
Cellular signaling in cochlear structures

Background

The stria vascularis is essential for auditory function.
It plays a role in eye and homeostasis regulation in the cochlea.
Dysfunctional mechanisms relate to conditions like Meniere's disease.

Methods Used

Dissection of stria vascularis from adult mice.
Single-nucleus RNA sequencing for transcription analysis.
Immunostaining for protein detection in stria vascularis.

Main Results

Mapping the transcriptional landscape of the stria vascularis.
Linking stria vascularis dysfunction to auditory instability disorders.
Improving understanding of cellular interactions within cochlear structures.

Conclusions

The study illustrates the complexity and importance of the stria vascularis in hearing.
Findings enhance comprehension of the mechanisms underlying hearing disorders.

Frequently Asked Questions

What is the stria vascularis?

The stria vascularis is a tissue layer within the cochlea that plays a crucial role in producing the endocochlear potential necessary for normal hearing.

Why is single-nucleus sequencing used in this research?

Single-nucleus sequencing allows researchers to examine the specific transcriptional profiles of individual cells within the stria vascularis, providing insights into cellular functions and interactions.

What are hearing instability disorders?

Hearing instability disorders are conditions characterized by fluctuations in hearing or sudden hearing loss, often linked to dysfunction in structures like the stria vascularis.

What implications do the findings have?

These findings could advance the understanding of hearing disorders and potentially lead to new therapeutic approaches.

What techniques are employed for immunostaining?

Immunostaining involves applying specific antibodies to detect proteins of interest in the tissue, helping to visualize cellular components.

How does the stria vascularis relate to Meniere's disease?

Research indicates that dysfunction in the stria vascularis may contribute to the symptoms experienced in Meniere's disease, linking cellular health to auditory stability.

La strie vasculaire est vitale pour la génération du potentiel endocochléaire. Ici, nous présentons la dissection de la strie vasculaire de la souris adulte pour le séquençage mononucléaire ou l’immunomarquage.

La strie vasculaire a pour fonction de générer le potentiel endocochléaire et de réguler l’homéostasie ionique dans la cochlée. Le programme de développement et de restauration auditive cherche à comprendre les mécanismes sous-jacents reliant l’homéostasie ionique dysfonctionnelle aux troubles de l’audition et de la stabilité, qui sont des maladies où une fluctuation ou une perte auditive soudaine se produit. Les travaux dans mon laboratoire ont établi le paysage transcriptionnel de la strie vasculaire et ont contribué à notre compréhension de son importance dans l’audition.

Nous avons utilisé ces données pour établir des parallèles avec des troubles de l’audition et de la stabilité mal compris, y compris la maladie de Ménière. Ce protocole permet la dissection et l’isolement de stria vascularis à montage entier pour d’autres études moléculaires, y compris l’immunohistochimie. Étant donné que les types de cellules vasculaires sont étroitement liés les uns aux autres, l’utilisation de l’isolement nucléaire et du séquençage de l’ARN mononucléaire a facilité notre compréhension de la machinerie transcriptionnelle distincte impliquée.

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