Abstract |
The presence of putrescine or chlorpheniramine in the incubation medium of Ehrlich ascites tumor cells starved for 1 h significantly inhibits the rate of ferricyanide reduction by their plasma membrane redox system. Freshly harvested cells, without depletion of their intracellular pools of polyamines, and cells preincubated under conditions arranged to increase ornithine decarboxylase activity also reduced externally added ferricyanide at a lower rate than those cells starved for 1 h. All these data seems to indicate that the presence of putrescine is enough to significantly inhibit Ehrlich cell plasma membrane redox system activity.
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Authors | L Rodríguez-Caso, F Sánchez-Jiménez, M A Medina |
Journal | Cancer letters
(Cancer Lett)
Vol. 132
Issue 1-2
Pg. 165-8
(Oct 23 1998)
ISSN: 0304-3835 [Print] Ireland |
PMID | 10397469
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Ferricyanides
- Histamine H1 Antagonists
- hexacyanoferrate III
- Chlorpheniramine
- NADH, NADPH Oxidoreductases
- ferricyanide reductase
- Putrescine
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Topics |
- Animals
- Carcinoma, Ehrlich Tumor
(enzymology, pathology)
- Cell Membrane
(drug effects, enzymology, metabolism)
- Chlorpheniramine
(pharmacology)
- Female
- Ferricyanides
(metabolism)
- Histamine H1 Antagonists
(pharmacology)
- Kinetics
- Mice
- NADH, NADPH Oxidoreductases
(metabolism)
- Oxidation-Reduction
- Putrescine
(pharmacology)
- Tumor Cells, Cultured
(cytology, drug effects, enzymology)
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