Rapid Access to Preventive Intervention Development (RAPID) National Cancer Institute
(NCI) program. Cocoa butter was purchased from Nature’s Oils (Streetsboro, OH).
Polyethylene glycols (PEG) (MW 400, 3350), acetonitrile (HPLC grade
≥99.5%), sodium chloride, lactic acid, acetic acid, potassium hydroxide
(KOH), bovine serum albumin (BSA), glucose were purchased from Sigma Aldrich (St Louis,
MO). Glycerol USP and mineral oil USP were purchased from VWR International (Radnor, PA).
Kolliphor was obtained from BASF (Germany). Captiva® filtration plates
were purchased from Agilent Technologies Inc. Anti-cyclin D1 antibody was purchased from
Cell Signaling Technology (Boston, MA), and anti-β-actin peroxidase/FITC
conjugated secondary antibodies were purchased from Santa Cruz (Santa Cruz, CA) for
Western Blot experiments. Mammalian Protein Extraction Reagent (m-PER), Pierce BCA protein
assay kits were purchased from Thermo Fisher Scientific (Grand Island, NY). Protease
inhibitor cocktail and phosphatase inhibitor cocktail were purchased from Roche (New York,
NY). Polyvinylidene difluoride (PVDF) membrane and enhanced chemiluminescence (ECL)
reagent were purchased from Bio-Rad (Hercules, CA).