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Related Experiment Video

Updated: Jun 27, 2026

Zebrafish In Situ Spinal Cord Preparation for Electrophysiological Recordings from Spinal Sensory and Motor Neurons

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Published on: April 18, 2017

Zebrafish Rohon-Beard neuron development: cdk5 in the midst.

Jyotshnabala Kanungo¹, Ya-Li Zheng, Bibhutibhushan Mishra

¹Laboratory of Neurochemistry, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-4130, USA.

Neurochemical Research

|December 11, 2008

Summary

Cyclin-dependent kinase 5 (cdk5) is crucial for neuronal development and survival. This study uses zebrafish to investigate cdk5

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Area of Science:

Neuroscience
Molecular Biology
Developmental Biology

Background:

Cyclin-dependent kinase 5 (cdk5) is a serine/threonine kinase activated by p35/p39.
Initially thought to be neuron-specific, cdk5 is ubiquitous and crucial for various cellular processes.
Cdk5 is implicated in both normal physiology and neurodegeneration, acting through specific substrates.

Purpose of the Study:

To investigate the role of cdk5 in early neuronal development and survival.
To utilize the zebrafish model to overcome limitations posed by cdk5-null embryonic lethality in mice.
To elucidate the mechanisms underlying cdk5's function in Rohon-Beard (RB) neuron development and survival.

Main Methods:

Utilized the zebrafish model system for in vivo studies.
Employed reverse genetics approaches.
Focused on the cdk5 ortholog in zebrafish and its effect on RB neurons.

Main Results:

Cdk5 plays a critical role in the development and survival of primary sensory neurons (RB neurons) in zebrafish.
The study identified potential mechanisms by which cdk5 influences RB neuron fate during early development.
Zebrafish model proved effective for studying cdk5's developmental roles.

Conclusions:

Cdk5 is essential for the proper development and programmed cell death of RB neurons in zebrafish.
Understanding cdk5's mechanisms in RB neurons provides insights into broader neurodevelopmental processes.
The zebrafish model is a valuable tool for studying cdk5 functions in the nervous system.