Abstract
There is good evidence from a number of cellular systems that the rate-limiting step of the arachidonic acid cascade consists in the release of arachidonate from phospholipids. At first sight, prostaglandin H synthase (PGHS) seems to be unrestricted under cellular conditions and the lipoxygenases although being partially dependent on Ca2+ are not limiting since phospholipase A2 requires Ca2+-levels that are higher than those for lipoxygenases as recently shown for leukotriene synthesis in leukocytes (1).
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Ullrich, V., Hecker, G., Meisch, F., Schatz-Munding, M. (1993). The Significance of the Peroxide Tone in the Arachidonic Acid Cascade. In: Nigam, S., Honn, K.V., Marnett, L.J., Walden, T.L. (eds) Eicosanoids and Other Bioactive Lipids in Cancer, Inflammation and Radiation Injury. Developments in Oncology, vol 71. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3520-1_4
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DOI: https://doi.org/10.1007/978-1-4615-3520-1_4
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