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Differences in Growth of Neurons from Normal and Regenerated Teleost Spinal Cord in vitro

Marilyn J. Anderson
In Vitro Cellular & Developmental Biology
Vol. 29A, No. 2 (Feb., 1993), pp. 145-152
Stable URL: http://www.jstor.org/stable/4296977
Page Count: 8
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Differences in Growth of Neurons from Normal and Regenerated Teleost Spinal Cord in vitro
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Abstract

Explants and dissociated cells from normal adult spinal cord and regenerating cord of the teleost Apteronotus albifrons were grown in vitro for periods of 8 to 12 wk. During this time the neurons showed extensive neurite outgrowth. Neurite outgrowth from tissue explants and dissociated cells of regenerated spinal cord starts sooner and is more profuse than that from normal (unregenerated) cord. Neurite outgrowth is maximized by using adhesive substrata and a high density of explants or dissociated cells. Inasmuch as Apteronotus does regenerate its spinal cord naturally after injury, whereas mammals do not, this culture system will be useful to study factors that control (permit) regeneration of spinal neurons in this adult vertebrate.

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