SN-38 is an antineoplastic drug. It is the active metabolite of irinotecan (an analog of camptothecin - a topoisomerase I inhibitor) but has 1000 times more activity than irinotecan itself. In vitro cytotoxicity assays show that the potency of SN-38 relative to irinotecan varies from 2- to 2000-fold.
SN38 is formed via hydrolysis of irinotecan by carboxylesterases and metabolized via glucuronidation by UGT1A1.
The variant of UGT1A1 in ~10% of Caucasians which leads to poor metabolism of SN-38 predicts irinotecan toxicity, as it is then less easily excreted from the body in its SN-38 glucuronide form.
SN-38 and its glucuronide are lost into the bile and intestines. It can cause the symptoms of diarrhoea and myelosuppression experienced by ~25% of the patients administered irinotecan. |
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Mus musculus
(NCBI:txid10090)
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Source: BioModels - MODEL1507180067
See:
PubMed
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Escherichia coli
(NCBI:txid562)
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See:
PubMed
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Homo sapiens
(NCBI:txid9606)
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See:
PubMed
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antioxidant
A substance that opposes oxidation or inhibits reactions brought about by dioxygen or peroxides.
Bronsted base
A molecular entity capable of accepting a hydron from a donor (Bronsted acid).
(via organic amino compound )
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Escherichia coli metabolite
Any bacterial metabolite produced during a metabolic reaction in Escherichia coli.
mouse metabolite
Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).
human metabolite
Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).
cofactor
An organic molecule or ion (usually a metal ion) that is required by an enzyme for its activity. It may be attached either loosely (coenzyme) or tightly (prosthetic group).
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geroprotector
Any compound that supports healthy aging, slows the biological aging process, or extends lifespan.
skin lightening agent
Any cosmetic used to lighten the colour of skin by reducing the concentration of melanin.
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5-L-Glutamyl-L-cysteinylglycine
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KEGG COMPOUND
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gamma-L-Glutamyl-L-cysteinyl-glycine
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Glutathione
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Glutathione-SH
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GSH
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N-(N-gamma-L-Glutamyl-L-cysteinyl)glycine
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111188
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C00001518
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GSH
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HMDB0000125
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1729812
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Reaxys Registry Number
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70-18-8
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