Dactinomycin® Analogues as Neurokinin-2 Receptor Antagonists

Autor: A. B. Mauger, Jan M. Lundberg, Serge Auberson
Rok vydání: 1993
Předmět:
Zdroj: Pharmacology & Toxicology. 73:311-314
ISSN: 1600-0773
0901-9928
DOI: 10.1111/j.1600-0773.1993.tb01357.x
Popis: Dactinomycin® has recently been shown to be a competitive neurokinin-2 receptor antagonist in addition to its inhibiting action on DNA replication. We investigated in the isolated guinea-pig bronchi the action of 3 Dactinomycin analogues on the contractions evoked by the selective neurokinin-2 receptor agonist [Nle10] neurokinin A(4–10). These analogues included 4,4′-Gly-Dactinomycin and the single peptide lactone of dactinomycin which are inactive on DNA replication and 5,5′-MeLeu-Dactinomycin, which has potent antitumour activity. Independently of their known effect on DNA replication, the three analogues showed neurokinin-2 antagonistic activity which was lower than for Dactinomycin.
Databáze: OpenAIRE