Biochimica et biophysica acta, 840(3), 309-316 (1985-07-05)
Dicyclohexylamine, a spermidine synthase inhibitor, was evaluated for its ability to alter specific polyamine levels in rat hepatoma HTC cells in culture. Media concentrations of 0.5 and 1.0 mM reduced the production of spermidine from putrescine and enhanced the conversion
Growth characteristics, polyamine levels, and distribution of cells in the cell cycle were determined for 9L rat brain tumor cells treated for various periods with 1 mM dicyclohexylamine sulfate (DCHA). Continuous treatment of cells with DCHA caused growth inhibition at
Hyperforin (Hyp), the major lipophilic constituent of St. John's wort, was assayed as a stable dicyclohexylammonium salt (Hyp-DCHA) for cytotoxicity and inhibition of matrix proteinases, tumor invasion, and metastasis. Hyp-DCHA triggered apoptosis-associated cytotoxic effect in both murine (C-26, B16-LU8, and
Proceedings of the National Academy of Sciences of the United States of America, 82(12), 4105-4109 (1985-06-01)
We wished to identify metabolic signals governing changes in ornithine decarboxylase (L-ornithine carboxy-lyase, EC 4.1.1.17) activity in Neurospora crassa. By manipulations of the ornithine supply and by the use of inhibitors of the polyamine pathway, we found that spermidine negatively
Inhibitory doses (ID50) of phenols complexed with dicyclohexylamine are lower (21.4-47.7%) than the inhibitory doses of free phenols. This is demonstrated in vitro by experiments with Aspergillus oryzae and Penicillium expansum on solid medium.
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