Rolipram, a Selective Inhibitor of Phosphodiesterase Type 4, Pronouncedly Enhanced the Forskolin-Induced Promotion of Dopamine Biosynthesis in Primary Cultured Rat Mesencephalic Neurons

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Author(s)

Abstract

A selective inhibitor of cyclic nucleotide phosphodiesterase (PDE) 4, rolipram, markedly enhanced the forskolin-induced increase of intracellular dopamine and dihydroxyphenylacetate (DOPAC, a metabolite of dopamine) levels in primary cultured rat mesencephalic neurons and the forskolin-induced increase of dopamine and DOPAC in extracellular medium. Selective inhibitors of PDE2, PDE3, PDE5 and PDE6 did not have such a promoting effect, and the PDE1 inhibitor vinpocetine and W-7 caused dopamine depletion in the neurons. These findings suggested that PDE4 plays a major role in regulating the intracellular cAMP level to control the dopamine biosynthesis in mesencephalic neurons, whereas PDE 1 regulates dopamine release instead.

Journal

  • The Japanese Journal of Pharmacology

    The Japanese Journal of Pharmacology 75(1), 91-95, 1997-09-01

    The Japanese Pharmacological Society

References:  13

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008679845
  • NII NACSIS-CAT ID (NCID)
    AA00691188
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00215198
  • NDL Article ID
    4307649
  • NDL Source Classification
    ZS51(科学技術--薬学)
  • NDL Call No.
    Z53-D199
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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