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Okadaic acid, useful tool for studying cellular processes.

J J Fernández1, M L Candenas, M L Souto

  • 1Instituto Universitario de Bio-Orgánica Antonio González , Universidad de La Laguna, Astrofisico Francisco Sánchez 2, 38206 La Laguna, Spain. jjfercas@ull.es

Current Medicinal Chemistry
|February 28, 2002
PubMed
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Okadaic acid (OA), a marine microalgae toxin, causes Diarrhetic Shellfish Poisoning. This potent inhibitor of protein phosphatases 1 and 2A is a valuable research tool for studying cell signaling and disease.

Area of Science:

  • Marine natural products
  • Marine toxicology
  • Biochemistry

Background:

  • Marine polyether toxins exhibit structural diversity and potent bioactivities.
  • Okadaic acid (OA) is a prominent marine toxin produced by microalgae.
  • OA is the causative agent of Diarrhetic Shellfish Poisoning (DSP) and associated red tides.

Purpose of the Study:

  • To review the structural and pharmacological aspects of okadaic acid (OA).
  • To highlight OA's role in Diarrhetic Shellfish Poisoning (DSP) and its impact on the shellfish industry.
  • To discuss OA's utility as a research tool in cell biology.

Main Methods:

  • Literature review focusing on okadaic acid.
  • Analysis of OA's mechanism of action as a protein phosphatase inhibitor.

Related Experiment Videos

  • Examination of OA's biological effects, including tumor promotion.

    • Main Results:

    • Okadaic acid (OA) is identified as a selective inhibitor of protein phosphatases type 1 (PP1) and 2A (PP2A).
    • OA induces significant increases in protein phosphorylation.
    • OA demonstrates potent tumor-promoting activity.

    Conclusions:

    • Okadaic acid (OA) is a crucial tool for investigating cellular processes regulated by protein phosphorylation.
    • OA aids in understanding signal transduction, cell division, and memory mechanisms.
    • The study underscores the toxicological and research significance of marine polyether toxins like OA.