Visualization of G3BP Stress Granules Dynamics in Live Primary Cells

Sophie Martin; Jamal Tazi

doi:10.3791/51197

Visualizzazione dei G3BP stress Granuli Dynamics in cellule primarie in diretta

JoVE Journal
Biology

A subscription to JoVE is required to view this content. Sign in or start your free trial.

JoVE Journal Biology

Visualization of G3BP Stress Granules Dynamics in Live Primary Cells

Visualizzazione dei G3BP stress Granuli Dynamics in cellule primarie in diretta

Full Text

18,825 Views

10:12 min

May 21, 2014

DOI: 10.3791/51197-v

Sophie Martin¹, Jamal Tazi¹

¹Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535

Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

This study investigates the dynamics of stress granules (SGs) in primary cells, focusing on their formation and response to stress. By visualizing tagged components of SGs, researchers can monitor their behavior in live cells.

Key Study Components

Area of Science

Neuroscience
Cell Biology
Stress Response

Background

Stress granules are cytoplasmic RNA granules involved in cellular stress responses.
They contain stalled ribonucleoprotein particles (RNPs).
Understanding SG dynamics can provide insights into cellular responses to various stresses.
Live cell imaging techniques are essential for studying these dynamics.

Purpose of Study

To study the formation and dynamics of stress granules in primary cells.
To visualize the localization of tagged components of SGs.
To monitor the cellular response to induced stress.

Methods Used

Culturing primary cells such as mouse embryonic fibroblasts or hippocampal neurons.
Transfecting cells with a tagged component of stress granules.
Inducing stress in cells.
Monitoring SG dynamics using time-lapse confocal microscopy.

Main Results

Visualization of G3BP1-containing stress granules in primary cells.
Dynamic behavior of stress granules observed in response to stress.
Insights into the role of stress granules in neuronal stress responses.
Methodology can address key questions regarding cellular stress responses.

Conclusions

The study provides a framework for understanding stress granule dynamics.
Live imaging techniques are effective for monitoring cellular responses.
Findings may contribute to broader insights into stress responses in neurons.

Frequently Asked Questions

What are stress granules?

Stress granules are cytoplasmic RNA granules that form in response to cellular stress, containing stalled ribonucleoprotein particles.

How are stress granules visualized in this study?

They are visualized by transfecting cells with a tagged component of the stress granules and using time-lapse confocal microscopy.

What types of cells are used in this research?

Primary cells such as mouse embryonic fibroblasts and hippocampal neurons are used for the study.

What is the significance of studying stress granules?

Studying stress granules helps understand how cells respond to stress, which is crucial for insights into various diseases.

What microscopy technique is employed in this research?

Time-lapse confocal microscopy is used to monitor the dynamics of stress granules in live cells.

What are the main findings of the study?

The study reveals the dynamic behavior of stress granules in response to stress and provides insights into their role in neuronal stress responses.

Granuli di stress (SGS) sono granuli citoplasmatici RNA contenenti particelle in fase di stallo ribonucleoproteiche (RNP), e importante nella risposta cellulare alle varie sollecitazioni. Dinamica di SG possono essere seguite in cellule vive visualizzando la localizzazione di un componente taggato di SG in cellule primarie transfettate dopo stress.

L'obiettivo generale del seguente esperimento è quello di studiare la dinamica dei granuli ribonucleoproteici nelle cellule primarie, in particolare la formazione di granuli di stress. Ciò si ottiene coltivando prima cellule come topolini, embrionali, fibroblasti o neuroni ippocampali da animali di interesse. In una seconda fase, un componente marcato dei granuli di stress viene trasfettato per consentirne la visualizzazione.

Successivamente, le cellule vengono indotte dallo stress e monitorate con la microscopia confocale time-lapse. I risultati ottenuti mostrano la dinamica di G 3 BP uno contenente granuli di stress nei miti o nei neuroni specchio e ippocampali in base alla loro visualizzazione diretta. Questi metodi possono aiutare a rispondere a domande chiave sulla risposta allo stress in cellule come i neuroni.

View the full transcript and gain access to thousands of scientific videos

Explore More Videos

Biologia Cellulare Numero 87 Stress granuli (SG) G3BP cellule primarie i neuroni