- Hydrolysis-Sensitive Dithiolethione Prodrug Micelles.
Hydrolysis-Sensitive Dithiolethione Prodrug Micelles.
Macromolecular bioscience (2015-06-24)
Urara Hasegawa, Naoya Tateishi, Hiroshi Uyama, André J van der Vlies
PMID26102371
ABSTRACT
Prodrug micelles carrying 5-(4-hydroxyphenyl)-3H-1,2-dithiole-3-thione (ADT-OH), a compound possessing chemopreventive properties, are prepared from amphiphilic block copolymers linking ADT-OH via an ester bond using glycine (PAM-PGlyADT) and isoleucine linkers (PAM-PIleADT). The release of ADT-OH from the PAM-PIleADT micelles is much slower than the PAM-PGlyADT micelles. The PAM-PGlyADT micelles show comparable toxicity with ADT-OH in different cancer cell lines, whereas the PAM-PIleADT micelles are not toxic up to 400 µM. This ADT-ester prodrug micelle approach enables to modulate the release rate of ADT-OH and thus might find application in cancer therapy and prevention.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
Diethyl ether, ACS reagent, ≥98.0%, contains ≤2% ethanol and ≤10ppm BHT as inhibitor
Sigma-Aldrich
Hydrogen peroxide solution, contains inhibitor, 30 wt. % in H2O, meets USP testing specifications
Sigma-Aldrich
Diethyl ether, contains BHT as inhibitor, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8% (GC)
Sigma-Aldrich
Diethyl ether, reagent grade, ≥98%, contains ≤2% ethanol and ≤10ppm BHT as inhibitor
Sigma-Aldrich
Diethyl ether, puriss., contains ~5 mg/L 2,6-di-tert.-butyl-4-methylphenol as stabilizer, meets analytical specification of Ph. Eur., BP, ≥99.5% (GC)
Sigma-Aldrich
Aluminum oxide, nanoparticles, <50 nm particle size (DLS), 20 wt. % in isopropanol
Supelco
Methanol solution, NMR reference standard, 4% in methanol-d4 (99.8 atom % D), NMR tube size 5 mm × 8 in.
Sigma-Aldrich
Potassium bicarbonate, puriss., meets analytical specification of Ph. Eur., BP, USP, E501, 99.5-101.0% (acidimetric)
Sigma-Aldrich
Sodium sulfate, puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)