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“In the presence of either quinacrine, an inhibitor of PLA2 pathway activation, or neomycin , which binds to PI mono- and biphosphate thus blocking their degradation by phospholipases, AA and PGE2 secretion were reduced in a dose-dependent manner.”
“ Neomycin (1 mM) also reversed GTP gamma S-stimulated, but not calcium-stimulated release of arachidonic acid.”
“The ability of 1 mM neomycin to inhibit arachidonic acid release was reversed by addition of 1 microM phorbol 12-myristate 13-acetate, implying a role for protein kinase C activation in stimulation of arachidonic acid release.”