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Halothane action on lymphocytes does not involve cyclic AMP.

D L Bruce

    Anesthesiology
    |February 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Theophylline and halothane inhibit human lymphocyte transformation. Halothane's effect on phytohemagglutinin-stimulated lymphocytes does not appear to involve cyclic nucleotide metabolism changes.

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    Area of Science:

    • Immunology
    • Pharmacology

    Background:

    • Phytohemagglutinin (PHA) stimulates human lymphocyte transformation.
    • Theophylline and halothane are known to inhibit this transformation process.

    Purpose of the Study:

    • To investigate the interaction between theophylline and halothane on lymphocyte transformation.
    • To determine if halothane's inhibitory mechanism involves cyclic nucleotide metabolism.

    Main Methods:

    • Human lymphocytes were treated with theophylline and/or halothane.
    • Lymphocyte transformation was induced by PHA.
    • Cyclic AMP levels were measured in treated and untreated lymphocytes before and after PHA stimulation.

    Main Results:

    • Both theophylline and halothane inhibited PHA-induced lymphocyte transformation.

    Related Experiment Videos

  • Theophylline did not enhance halothane's inhibitory effect.
  • Halothane did not alter cyclic AMP levels in lymphocytes before or after PHA stimulation.

    • Conclusions:

    • Halothane's inhibition of PHA-stimulated lymphocyte transformation does not appear to be mediated by changes in cyclic nucleotide metabolism.
    • Theophylline's effect is independent of halothane's mechanism involving cyclic AMP.