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Stem cell-like Xenopus Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo

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Morpholino studies in Xenopus brain development.

Jennifer E Bestman¹, Hollis T Cline

¹The Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)

|September 20, 2013

Summary

Antisense morpholino oligonucleotides (MOs) can be delivered to the central nervous system of tadpoles using electroporation. This method offers spatial and temporal control for studying gene function in developing nervous systems.

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Area of Science:

Neuroscience
Molecular Biology
Developmental Biology

Background:

Antisense morpholino oligonucleotides (MOs) are effective tools for gene knockdown and interfering with RNA function.
MOs are commonly used in aquatic vertebrate models like Xenopus and zebrafish, typically via injection into early embryos.

Purpose of the Study:

To present a novel method for targeted delivery of MOs to the central nervous system (CNS) of Xenopus tadpoles using electroporation.
To enable precise spatial and temporal control over gene knockdown in the developing nervous system.

Main Methods:

MO solution is injected into the brain ventricle of Xenopus tadpoles.
Electroporation is performed using platinum plate electrodes to drive MOs into CNS cells.
Co-electroporation with fluorescent protein plasmids or rescuing plasmids allows for phenotypic analysis and specificity assessment.

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Published on: October 30, 2014

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Main Results:

Electroporation provides a straightforward, standard-equipment-based method for MO delivery to the tadpole CNS.
This technique allows for controlled knockdown of protein and miRNA function within specific brain regions.
Combined with advanced assays, it facilitates the elucidation of protein and RNA functions in neurodevelopment.

Conclusions:

Electroporation is a versatile and effective method for targeted MO delivery to the developing CNS of Xenopus.
This approach enhances the study of gene function in neuroscience and can be adapted for complex tissues.