D,L-Buthionine-(S,R)-sulfoximine (Butionine sulfoximine) (Synonyms: NSC 381100) |
| Catalog No.GC33023 |
La D,L-Butionine-(S,R)-sulfoximine (Butionine sulfoximine) est un puissant inhibiteur de la biosynthèse de la glutamylcystéine synthétase.
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Cas No.: 5072-26-4
Sample solution is provided at 25 µL, 10mM.
D,L-Buthionine-(S,R)-sulfoximine is a potent inhibitor of glutamylcysteine synthetase biosynthesis.
Buthionine sulfoximine is an analogs of methionine sulfoximine and inhibits gamma-glutamylcysteine synthetase about 20 times more effectively than prothionine sulfoximine and at least 100 times more effectively than methionine sulfoximine[1].
Treatment of mice bearing HT1080 and HT1080/DR4 xenografts with a continuous i.v infusion of nontoxic doses of D,L-Buthionine-(S,R)-sulfoximine (300 and 600 mg/kg/day) produce a 60% reduction of GSH plasma levels and greater than 95 % reduction in GSH tumor levels in both parental and multidrug-resistant tumors[2].
[1]. Griffith OW, et al. Potent and specific inhibition of glutathione synthesis by buthionine sulfoximine (S-n-butyl homocysteine sulfoximine). J Biol Chem. 1979 Aug 25;254(16):7558-60. [2]. Vanhoefer U, et al. d,l-buthionine-(S,R)-sulfoximine potentiates in vivo the therapeutic efficacy of doxorubicin against multidrug resistance protein-expressing tumors. Clin Cancer Res. 1996 Dec;2(12):1961-8.
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