Summary
Culturing human prostate PC-3 cells for 4, 24, or 72 h in the presence of 5,8,11,14-eicosatetraynoic acid (ETYA), an inhibitor of arachidonic acid metabolism and cholesterol biosynthesis, markedly altered the morphology and reduced the number of mitochondria in the treated cells. Using quantitative electron microscopic morphometry, we documented changes in the number, form, area, matrix density, and integrity of the cristae and limiting membranes of mitochondria in cells cultured with ETYA. The inhibition of cholesterol synthesis or the substitution of ETYA for polyunsaturated fatty acids in the inner membrane may participate in the disruption of the mitochondria, which resembles the morphologic sequelae of oxidative stress. If sufficiently extensive, these changes could contribute to the inhibition of cellular proliferation by ETYA.
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Anderson, K.M., Seed, T.M., Wilson, D.E. et al. 5,8,11,14-Eicosatetraynoic acid-induced destruction of mitochondria in human prostate cells (PC-3). In Vitro Cell Dev Biol - Animal 28, 410–414 (1992). https://doi.org/10.1007/BF02634044
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DOI: https://doi.org/10.1007/BF02634044