Efficient and Cost Effective Electroporation Method to Study Primary Cilium-Dependent Signaling Pathways in the Granule Cell Precursor

Jason Cho Wai Lo; Wee Lin Wong; Catherine Hong Huan Hor

doi:10.3791/63283

Método de eletroporação eficiente e econômico para estudar vias de sinalização dependentes de cít...

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Neuroscience

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JoVE Journal Neuroscience

Efficient and Cost Effective Electroporation Method to Study Primary Cilium-Dependent Signaling Pathways in the Granule Cell Precursor

Método de eletroporação eficiente e econômico para estudar vias de sinalização dependentes de cítio primário no precursor da célula de grânulo

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04:06 min

November 30, 2021

DOI: 10.3791/63283-v

Jason Cho Wai Lo¹, Wee Lin Wong¹, Catherine Hong Huan Hor¹

¹Department of Chemistry, Faculty of Science,Hong Kong Baptist University

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Overview

This study presents a reproducible in vitro electroporation protocol designed for the genetic manipulation of primary cerebellar granule cell precursors (GCPs). It focuses on a method that is both cost-effective and efficient for studying the primary cilium-dependent Hedgehog signaling pathways.

Key Study Components

Area of Science

Neuroscience
Genetic manipulation
Cell signaling

Background

Primary cerebellar granule cell precursors (GCPs) are critical for studying neural development.
Current transfection methods are often inefficient and costly.
The primary cilium is vital for various signaling pathways, including Hedgehog signaling.
Electroporation offers a potential solution for these challenges.

Purpose of Study

To introduce an efficient electroporation technique for GCP culture.
To facilitate the study of primary cilium-dependent signaling.
To improve genetic manipulation outcomes in difficult-to-transfect cell types.

Methods Used

The experiment utilized in vitro cultures of primary GCPs.
The electroporation protocol involved specific parameters for effective genetic modification.
No multiomics approach was mentioned in the study.
Critical steps included cell resuspension and electroporation sequence.
Immunostaining was used to assess ciliation rates and signaling pathway activation.

Main Results

The protocol demonstrated a significant increase in the activation of the Hedgehog signaling pathway in treated GCPs.
Immunostaining revealed a notable ciliation rate increase in GCPs post-electroporation.
The study provided insights into the efficiency of electroporation compared to traditional methods.
It concluded that high plasmid purity is crucial for electroporation success.

Conclusions

This study presents a valuable protocol for genetic manipulation in primary GCPs.
The findings enhance understanding of primary cilium-dependent signaling mechanisms.
Future applications may include various cell types that are challenging to transfect.

Frequently Asked Questions

What are the advantages of the electroporation method?

Electroporation is cost-effective and demonstrates higher efficiency compared to traditional transfection methods, making it suitable for difficult-to-transfect cell types.

How is the electroporation procedure implemented?

Cells are prepared in a culture medium, followed by resuspension in an electroporation mixture that is subjected to specific electrical parameters.

What types of data or outcomes can be obtained?

Outcomes include assessments of gene expression and signaling pathway activation, alongside morphological changes in GCP cultures.

Can this method be applied to other cell types?

Yes, this electroporation technique can be adapted for various primary cultures and cell types that are typically challenging to manipulate genetically.

What considerations should be made when using this protocol?

Ensuring high purity of plasmid DNA and complete removal of residual culture media are crucial for achieving optimal electroporation efficiency.

What implications do the findings have for neuronal research?

The study aids in understanding the molecular mechanisms underlying primary cilium function and its role in neuronal signaling pathways.

Aqui, apresentamos um protocolo de eletroporação in vitro reprodutível para manipulação genética de precursores primários de células de grânulo cerebelar (GCPs) que é econômico, eficiente e viável. Além disso, este protocolo também demonstra um método simples para o estudo molecular de vias primárias de sinalização de Ouriço dependentes de cílios em células GCP primárias.

Este protocolo demonstra um método simples de modificação genética in vitro para o estudo molecular da via de sinalização dependente do cítio primário nas culturas precursoras das células primárias do grânulo. Devido ao custo, baixa viabilidade e baixa eficiência do método de transfecção atual, introduzimos uma técnica de eletroporação simples, econômica e eficiente para investigar o caminho de sinalização dependente do cilium nas culturas primárias do GCP. Para começar, adicione 0,5 mililitros de cultura em cada poço da placa de cultura de 24 poços contendo deslizamentos de cobertura revestidos, e mantenha-o aquecido a 37 graus Celsius em uma incubadora de dióxido de carbono.

Pipeta o número necessário de células em um tubo de microcentrífuga de 1,5 mililitro e gire a 200x G por cinco minutos à temperatura ambiente. Descarte o supernatante e resuspenja a pelota celular em 200 microliters de Opti-MEM. Repita este procedimento duas vezes para garantir que nenhum meio de cultura residual esteja presente no tubo.

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