Live Imaging of Microtubule Dynamics in Glioblastoma Cells Invading the Zebrafish Brain

Florent Peglion; Franck Coumailleau; Sandrine Etienne-Manneville

doi:10.3791/64093

Zebra Balığı Beynini İstila Eden Glioblastoma Hücrelerinde Mikrotübül Dinamiğinin Canlı Görüntüle...

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Live Imaging of Microtubule Dynamics in Glioblastoma Cells Invading the Zebrafish Brain

Zebra Balığı Beynini İstila Eden Glioblastoma Hücrelerinde Mikrotübül Dinamiğinin Canlı Görüntülenmesi

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09:29 min

July 29, 2022

DOI: 10.3791/64093-v

Florent Peglion¹, Franck Coumailleau¹, Sandrine Etienne-Manneville¹

¹Cell Polarity, Migration and Cancer Unit,Université Paris-Cité, Institut Pasteur, Équipe Labellisée Ligue Contre le Cancer

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Overview

This study investigates the dynamics of microtubules in glioblastoma (GBM) cells during brain invasion using zebrafish as a model system. The innovative approach involves the orthotopic injection of fluorescently tagged GBM cells into the transparent zebrafish brain, enabling high-resolution intravital imaging of cytoskeletal dynamics in situ.

Key Study Components

Research Area

Microtubule dynamics
Brain cancer invasion
Intravital imaging techniques

Background

Glioblastoma is a highly invasive brain cancer.
Understanding microtubule behavior is crucial for studying cancer invasion mechanisms.
Previous models lacked real-time imaging capabilities for assessing cytoskeletal dynamics.

Methods Used

Orthotopic injection of GBM cells in zebrafish larvae
Zebrafish model system for in vivo studies
High-resolution intravital imaging

Main Results

Successful visualization of microtubule dynamics in invading GBM cells.
High spatial and temporal resolution data obtained during in situ cancer invasion.
Method provides insights into the role of microtubules in cell migration and invasion.

Conclusions

The study demonstrates a novel technique for observing cancer cell behavior in a live model.
This approach is relevant for further understanding cancer invasion and potential therapeutic interventions.

Frequently Asked Questions

What is the significance of microtubules in cancer invasion?

Microtubules play a crucial role in cell structure and movement, influencing how cancer cells invade surrounding tissues.

Why is zebrafish an effective model for studying brain cancer?

Zebrafish are transparent at early stages, allowing real-time imaging of cellular processes in vivo, which is essential for studying cancer invasion.

How does this method differ from traditional techniques?

This method allows for live imaging and real-time observation of microtubule dynamics, whereas traditional methods often rely on fixed samples.

What are the potential applications of this study?

This technique could be used to analyze the effects of different proteins involved in cancer invasion and to evaluate new therapeutic strategies.

Can this method be applied to other types of cancer?

Yes, the approach can potentially be adapted for studying various cancer types by using different cell lines injected into the zebrafish model.

What technology is primarily used for imaging in this study?

High-resolution intravital imaging techniques, specifically confocal microscopy, are utilized to capture microtubule dynamics.

What temperature is maintained during imaging?

The imaging is carried out at a controlled temperature of 32 degrees Celsius to ensure the viability of the zebrafish larvae.

Omurgalı beyin dokusunu invaze eden glioblastoma (GBM) hücrelerinde mikrotübül dinamiklerinin canlı görüntülenmesine izin veren bir teknik sunuyoruz. Floresan etiketli GBM hücrelerinin ortotopik enjeksiyonunun, yüksek çözünürlüklü intravital görüntüleme ile şeffaf bir zebra balığı beynine bağlanması, in situ kanser invazyonu sırasında sitoiskelet dinamiklerinin ölçülmesini sağlar.

Bu yöntem, zebra balığındaki beyin kanseri hücresinin atopik enjeksiyonunu hücre altı intravital görüntülemeye bağlayarak beyin kanseri invazyonu sırasında mikrotübüllerin rolünün araştırılmasına adanmıştır. Tekniğin temel avantajı, mikrotübül sitoiskeletinin elde edildiği yüksek uzamsal zamansal çözünürlükte yatmaktadır. İn vivo beyin kanseri invazyon modelleri için benzersizdir ve derinlemesine mikrotübül dinamiği analizine izin verir.

İn situ beyin kanseri hücre invazyonunun hücre altı görüntülemesi, kanser invazyonunda potansiyel olarak yer alan herhangi bir proteinin analizi için kullanılabilir. Başlamak için, 37 santigrat derecede kültürlenmiş glioblastoma hücrelerini PBS ile yıkayın. Bir mililitre% 0.05 Tripsin EDTA ekleyerek hücreleri ayırın ve tüm hücreler tamamen ayrılana kadar hücre inkübatöründe 37 santigrat derecede beş ila 10 dakika inkübe edin.

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