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Prostaglandin formation in bacteria.

E Gulbis, A M Marion, J E Dumont

    Prostaglandins
    |September 1, 1979
    PubMed
    Summary
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    Bacteria can produce prostaglandins, specifically PGE2 and PGF2 alpha, when given arachidonic acid. This production, measured by radioimmunoassay, is comparable to mammalian levels and can be blocked by indomethacin.

    Area of Science:

    • Microbiology
    • Biochemistry
    • Immunology

    Background:

    • Prostaglandins are lipid compounds with hormone-like effects, crucial in various physiological processes.
    • Bacterial production of prostaglandins has been hypothesized but not extensively documented.

    Purpose of the Study:

    • To investigate the capacity of intact bacteria to synthesize and release prostaglandins.
    • To quantify prostaglandin production in different bacterial strains.

    Main Methods:

    • Incubation of Gram-positive and Gram-negative bacteria with exogenous arachidonic acid.
    • Quantification of prostaglandin E2 (PGE2) and prostaglandin F2 alpha (PGF2 alpha) using radioimmunoassay.
    • Assessment of indomethacin's inhibitory effect on prostaglandin synthesis.

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    Main Results:

    • Seven bacterial strains studied produced and released PGE2 and PGF2 alpha into the medium.
    • Prostaglandin release ranged from 6.5-50.9 ng PGE2 and <0.02-0.51 ng PGF2 alpha per mg bacterial protein.
    • Bacterial prostaglandin production was inhibited by indomethacin, similar to mammalian systems.

    Conclusions:

    • Intact bacteria are capable of producing prostaglandins (PGE2 and PGF2 alpha) from exogenous arachidonic acid.
    • The quantity of prostaglandins produced by bacteria is comparable to that observed in mammalian systems.
    • Bacterial prostaglandin synthesis is sensitive to indomethacin inhibition.