Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-4-29
pubmed:abstractText
The combination of N-(phosphonacetyl)-L-aspartate (PALA), 6-methylmercaptopurine riboside (MMPR), and 6-aminonicotinamide (6AN) has been shown to be an effective antineoplastic regimen and also to enhance the effects of other antineoplastic agents (1-4). To further enhance the effect of this combination, we investigated the effects of adding adriamycin, at its maximally tolerated dose, to this regimen. The response rate (complete regression+partial regression) for the four-drug regimen was higher than for the three-drug regimen, and the tumor growth delay was also significantly higher than for treatment with PALA, MMPR, 6AN, or after treatment with maximally tolerated doses of adriamycin alone (11 mg/kg). The addition of adriamycin to PALA, MMPR, 6AN did not result in enhancement of the effect of radiation, as measured by tumor growth delay studies and tumor control (complete and partial regression rate). The mechanism of action of the combination of PALA, MMPR, and 6AN is not known definitively, but a possible mechanism previously suggested is biochemical modulation of energy metabolism and inhibition of production of tumor ATP. Treatment with PALA, MMPR, 6AN, and adriamycin (at 2.5 hr post MMPR, 6AN) resulted in a nadir NTP/Pi value, as determined by 31P NMR spectroscopy, at approximately 10 hr post MMPR + 6AN (7.5 hr post adriamycin), which was not significantly different from the NTP/Pi value determined after treatment with the three-drug combination.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0735-7907
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-20
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Evaluation of chemotherapy and radiation enhancement and 31P NMR spectral changes induced by biochemical modulation.
pubmed:affiliation
Department of Medical Physics, Memorial Sloan Kettering Cancer Center New York, New York, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.