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rdf:type |
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lifeskim:mentions |
umls-concept:C0002563,
umls-concept:C0014898,
umls-concept:C0033262,
umls-concept:C0085862,
umls-concept:C0184511,
umls-concept:C0205314,
umls-concept:C0441655,
umls-concept:C0597225,
umls-concept:C0679622,
umls-concept:C0851827,
umls-concept:C0870432,
umls-concept:C1299583,
umls-concept:C1549571,
umls-concept:C1555465,
umls-concept:C1608386,
umls-concept:C1701901,
umls-concept:C1705417
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pubmed:issue |
23
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pubmed:dateCreated |
2009-2-20
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pubmed:abstractText |
Multifunctional acyloxyalkyl ester prodrugs of 5-aminolevulinic acid in cancer cell lines inhibited the proteasome and induced apoptosis and heme synthesis. The most potent prodrug was butyryloxymethyl 5-amino-4-oxopentanoate (1a). The metabolically released formaldehyde from the prodrugs was the dominant factor affecting cell viability by a ROS-dependent mechanism and was responsible for rapid phosphorylation of H2AX, suppression of the cell survival protein c-myc, and transient elevation in the expression of p21. 1a, which differs from 2a by releasing butyric instead of pivalic acid, was a more potent inducer of heme and acetylated H4 expression and induced apoptosis through activation of caspase 9. 1a and 1b specifically increased the level of the photosensitizer protoporphyrin 9, leading to enhancement of cell death by photodynamic therapy (PDT). The advantage of these multifunctional prodrugs over 5-ALA is their greater potency in the non-PDT mechanism of cancer cell killing and their ability to also augment PDT.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Aminolevulinic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Antineoplastic Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Butyric Acid,
http://linkedlifedata.com/resource/pubmed/chemical/H2AFX protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Heme,
http://linkedlifedata.com/resource/pubmed/chemical/Histones,
http://linkedlifedata.com/resource/pubmed/chemical/Porphyrins,
http://linkedlifedata.com/resource/pubmed/chemical/Prodrugs,
http://linkedlifedata.com/resource/pubmed/chemical/Proteasome Endopeptidase Complex,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-myc,
http://linkedlifedata.com/resource/pubmed/chemical/Reactive Oxygen Species
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
1520-4804
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:day |
11
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
7356-69
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pubmed:meshHeading |
pubmed-meshheading:19007111-Aminolevulinic Acid,
pubmed-meshheading:19007111-Antineoplastic Agents,
pubmed-meshheading:19007111-Apoptosis,
pubmed-meshheading:19007111-Butyric Acid,
pubmed-meshheading:19007111-Cell Proliferation,
pubmed-meshheading:19007111-Drug Screening Assays, Antitumor,
pubmed-meshheading:19007111-HL-60 Cells,
pubmed-meshheading:19007111-Heme,
pubmed-meshheading:19007111-Histones,
pubmed-meshheading:19007111-Humans,
pubmed-meshheading:19007111-Membrane Potential, Mitochondrial,
pubmed-meshheading:19007111-Molecular Structure,
pubmed-meshheading:19007111-Phosphorylation,
pubmed-meshheading:19007111-Photochemistry,
pubmed-meshheading:19007111-Porphyrins,
pubmed-meshheading:19007111-Prodrugs,
pubmed-meshheading:19007111-Proteasome Endopeptidase Complex,
pubmed-meshheading:19007111-Proto-Oncogene Proteins c-myc,
pubmed-meshheading:19007111-Reactive Oxygen Species,
pubmed-meshheading:19007111-Stereoisomerism,
pubmed-meshheading:19007111-Tumor Cells, Cultured
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pubmed:year |
2008
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pubmed:articleTitle |
Novel multifunctional acyloxyalkyl ester prodrugs of 5-aminolevulinic acid display improved anticancer activity independent and dependent on photoactivation.
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pubmed:affiliation |
Laboratory of Pharmacology and Experimental Oncology, Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel-Aviv University, Ramat Aviv, Israel.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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