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Related Experiment Videos

A new anthelmintic cyclodepsipeptide, PF1022A.

T Sasaki1, M Takagi, T Yaguchi

  • 1Pharmaceutical Research Laboratories, Meiji Seika Kaisha Ltd., Yokohama, Japan.

The Journal of Antibiotics
|May 1, 1992
PubMed
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A new cyclodepsipeptide, PF1022A, was discovered from Mycelia Sterilia and demonstrated potent anthelmintic activity against Ascaridia galli in chickens. Its complex cyclic structure was elucidated through spectroscopic and chemical analyses.

Area of Science:

  • Veterinary Pharmacology
  • Natural Product Chemistry
  • Parasitology

Background:

  • Anthelmintic resistance necessitates the discovery of novel compounds.
  • Cyclodepsipeptides are a class of natural products with potential biological activities.
  • Ascaridia galli is a significant poultry parasite causing economic losses.

Purpose of the Study:

  • To isolate and characterize a novel anthelmintic compound from Mycelia Sterilia.
  • To evaluate the efficacy of the isolated compound against Ascaridia galli.
  • To determine the chemical structure of the novel anthelmintic.

Main Methods:

  • Isolation of PF1022A from cultured Mycelia Sterilia.
  • Anthelmintic activity testing using Ascaridia galli model in chickens.

Related Experiment Videos

  • Structure elucidation using spectroscopic analyses (NMR, MS) and chemical degradation studies.

    • Main Results:

    • PF1022A was successfully isolated and identified as a novel cyclodepsipeptide.
    • The compound exhibited strong anthelmintic activity against Ascaridia galli.
    • The complete chemical structure was determined as cyclo(D-lactyl-L-N-methylleucyl-D-3-phenyllactyl-L-N-meth ylleucyl-D-lactyl-L-N- methylleucyl-D-3-phenyllactyl-L-N-methylleucyl).

    Conclusions:

    • PF1022A represents a promising new lead for anthelmintic drug development.
    • The compound's efficacy against Ascaridia galli warrants further investigation for poultry health.
    • The structural characterization provides a basis for future synthetic and structure-activity relationship studies.