Evidence for the involvement of distinct voltage-sensitive calcium channels in the release of 3H-dopamine from primary cultures of mesencephalic neurons.
In ventral mesencephalic neurons cultured for five days the K+-evoked 3H-dopamine release is mediated through activation of N-type Ca2+ channels, while L- or T-type channels appear to be inactive. In contrast, veratridine-elicited release of 3H-dopamine that was attenuated by tetrodotoxin was not altered by N-, L-, nor T-type Ca2+ channel blockers.
Grilli
M G
MG
National Heart, Lung and Blood Institute, Bethesda, MD 20892.
Wright
A G
AG
Hanbauer
I
I
D000818:Animals; D002121:Calcium Channel Blockers / Q000494:pharmacology; D015220:Calcium Channels / Q000502:physiology*; D002478:Cells, Cultured; D004298:Dopamine / Q000378:metabolism*; D005260:Female; D008636:Mesencephalon / Q000166:cytology / Q000378:metabolism*; D009474:Neurons / Q000378:metabolism*; D011189:Potassium Chloride / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D011954:Receptors, Dopamine / Q000187:drug effects / Q000378:metabolism; D014701:Veratridine / Q000494:pharmacology
D002121:Calcium Channel Blockers; D015220:Calcium Channels; D011954:Receptors, Dopamine; D011189:Potassium Chloride; D014701:Veratridine; D004298:Dopamine