Abstract
Methylglyoxal bis(guanylhydrazone) {1,1'-[(methylethanediylidene)-dinitrilo]diguanidine} is a very potent inhibitor of putrescine-activated S-adenosylmethionine decarboxylases from many different mammalian tissues, including sublines of mouse L1210 leukaemia that are resistant to the drug as well as sublines that are sensitive. The inhibition of purified rat ventral prostate S-adenosylmethionine decarboxylase is competitive with respect to the S-adenosylmethionine substrate, and is much greater in the presence than in the absence of the activator putrescine. Inhibition by the drug depends, among other things, on the nature of the aliphatic amines that can serve as stimulators of rat prostate S-adenosylmethionine decarboxylase. Effects of some congeners of methylglyoxal bis(guanylhydrazone) on the enzyme are described.
MeSH Terms
Amidines/pharmacology
Animals
Brain/enzymology
Carboxy-Lyases/antagonists & inhibitors
Cell Line
Enzyme Inhibitors
Female
Glyoxal/analogs & derivatives,pharmacology
Hydrazones/pharmacology
Hydrogen-Ion Concentration
Kidney/enzymology
Leukemia L1210/enzymology
Liver/enzymology
Male
Mice
Myocardium/enzymology
Prostate/enzymology
Putrescine/metabolism
Rats
S-Adenosylmethionine/metabolism
Salivary Glands/enzymology
Spleen/enzymology
Thymus Gland/enzymology
Chemicals
Amidines
Enzyme Inhibitors
Hydrazones
Glyoxal
S-Adenosylmethionine
Carboxy-Lyases
Putrescine
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Corti A
Dave C
Williams-Ashman H G
Mihich E
Schenone A
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24 references, click to expand
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