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- W2164828816 abstract "Objectives: The aim of this work was to study the action of leukotrienes on the growth of human mammary cancer cells MCF-7. Study design: The growth of the cells was measured by incorporation of 3H-thymidine. The action of leukotriene (LT)B4, LTD4, LTC4, LTE4 or arachidonate (AA) was tested in human mammary cancer cells MCF-7 in vitro. Results: LTB4 or LTD4 but not LTC4 or LTE4 reduced significant incorporation of 3H-thymidine in MCF-7 cells up to 52% or 56% respectively, when administered in concentrations 0.1–1000 pM. Agents in concentrations of 0.01 pM or 10 000 pM did not effect 3H-thymidine incorporation. We have shown, that MCF-7 cells synthesise LTB4 when treated with calcium ionophor A23187 (10 μM). Leukotriene-antagonist LY171883 (10 μM) lifts inhibitory effects of LTB4 or LTD4. Arachidonic acid (10 μM) inhibits 3H-thymidine incorporation up to 72%. 5-lipoxygenase inhibitor MK-886 (100 nM) lifts the inhibitory effect of arachidonate. Conclusions: LTB4 or LTD4 inhibits MCF-7 breast cancer cell growth. LT-receptors mediate the growth-inhibitory effect of LTB4 or LTD4." @default.
- W2164828816 created "2016-06-24" @default.
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- W2164828816 date "1998-03-01" @default.
- W2164828816 modified "2023-09-27" @default.
- W2164828816 title "Influence of leukotrienes on in vitro growth of human mammary carcinoma cell line MCF-7" @default.
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- W2164828816 doi "https://doi.org/10.1016/s0301-2115(97)00217-0" @default.
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