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The Journal of Cell Biology, Vol 59, 329-345, Copyright © 1973 by Rockefeller University Press

ARTICLE

PRIMARY CULTURES OF DISSOCIATED SYMPATHETIC NEURONS

: I. Establishment of Long-Term Growth in Culture and Studies of Differentiated Properties



Richard E. Mains 1 and Paul H. Patterson 1

1 From the Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115.

Dr. Mains' present address is the Department of Biology, University of Oregon, Eugene, Oregon 97403.

Rat sympathetic ganglia were disrupted by mechanical agitation to yield dissociated primary neurons, and the conditions for long-term growth in culture of the isolated neurons were examined. The neurons were grown with or without non-neural cells, simply by the addition or deletion of bicarbonate during growth in culture. Fluorescence histochemistry indicated that the isolated neurons contained catecholamines; incubations with radioactive precursors were used to verify the synthesis and accumulation of both dopamine and norepinephrine. The neurons also produced octopamine using tyramine as precursor, but not with tyrosine as the precursor. In the presence of eserine, older cultures synthesized and stored small amounts of acetylcholine. The cultures did not synthesize and accumulate detectable levels of radioactive gamma-aminobutyric acid, 5-hydroxytryptamine, or histamine.

Submitted on February 21, 1973
Revised on June 7, 1973


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