6533b85efe1ef96bd12bf364
RESEARCH PRODUCT
Platelet Activation: a New Biological Activity of Guinea-pig C3a Anaphylatoxin
Dieter Bitter-suermannStefan MeuerUlrich HaddingS. Beckersubject
Blood PlateletsAnaphylatoxinsSerotoninTime FactorsGuinea PigsImmunologychemical and pharmacologic phenomenaTritiumGuinea pigComplement Inactivator ProteinsAnimalsPlateletAnaphylatoxinInducerPlatelet activationComplement Inactivator ProteinsbiologyChemistryTemperatureBiological activityComplement C3General MedicineChromium RadioisotopesBiochemistrybiology.proteinAntibodyPeptidesdescription
3H-serotonin-release from labelled gp-platelets is established as a sensitive method for testing a new biological activity of gp-C3a anaphylatoxin in an autologous situation. Time-, dose- and temperature-dependent release reactions as well as specific inhibition by carboxypeptidase B and anti-C3a antibodies show that C3a is a potent and specific inducer of platelet activation. Inactive C3a does not induce 3H-serotonin-release but specifically inhibits the action of C3a on platelets.
year | journal | country | edition | language |
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1978-02-01 | Scandinavian Journal of Immunology |