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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1979-10-17
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pubmed:abstractText |
The effect of L-glutamine and L-asparagine depletion by Acinetobacter L-glutaminase-L-asparaginase on the toxicity and antitumor activity of L-(alphaS,5S)-alpha-amino-3-chloro-4,5-dihydro-5-isoxazoleacetic acid (NSC-163501) was tested in mice. The LD50 of six daily doses of NSC-163501 in BDF1 female mice decreased from 7.5 to 0.3 mg/kg/day by combination treatment with the enzyme. Enzyme therapy also decreased the dose of NSC-163501 needed for maximal prolongation of survival in these mice inoculated with L1210 leukemia. Nevertheless, the combination did not prolong survival in L1210-bearing mice beyond that of higher doses of NSC-163501 alone. In contrast, the combination of enzyme plus NSC-163501 inhibited the growth of established sc implanted Ehrlich ascites carcinoma in ICRf male mice much more than either agent alone. Treatment with Acinetobacter L-glutaminase-L-asparaginase decreased the L-asparagine and L-glutamine levels in acid extracts of the Ehrlich tumor. NSC-163501 did not affect the amide levels or alter the decrease produced by enzyme therapy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Asparaginase,
http://linkedlifedata.com/resource/pubmed/chemical/Glutaminase,
http://linkedlifedata.com/resource/pubmed/chemical/Glutamine,
http://linkedlifedata.com/resource/pubmed/chemical/Glycine,
http://linkedlifedata.com/resource/pubmed/chemical/Isoxazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Oxazoles
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0361-5960
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
63
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1109-14
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:466650-Acinetobacter,
pubmed-meshheading:466650-Amino Acids,
pubmed-meshheading:466650-Animals,
pubmed-meshheading:466650-Asparaginase,
pubmed-meshheading:466650-Carcinoma, Ehrlich Tumor,
pubmed-meshheading:466650-Drug Synergism,
pubmed-meshheading:466650-Drug Therapy, Combination,
pubmed-meshheading:466650-Female,
pubmed-meshheading:466650-Glutaminase,
pubmed-meshheading:466650-Glutamine,
pubmed-meshheading:466650-Glycine,
pubmed-meshheading:466650-Isoxazoles,
pubmed-meshheading:466650-Lethal Dose 50,
pubmed-meshheading:466650-Leukemia L1210,
pubmed-meshheading:466650-Male,
pubmed-meshheading:466650-Mice,
pubmed-meshheading:466650-Oxazoles
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pubmed:year |
1979
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pubmed:articleTitle |
Enhanced effect of an L-glutamine antagonist, L-(alphaS,5S)-alpha-amino-3-chloro-4,5-dihydro-5-isoxazoleacetic acid, by Acinetobacter L-glutaminase-L-asparaginase.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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