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4 protocols using 3β adiol

1

Androgen Effects on Tumor Cell Proliferation

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Tumour cell proliferation was evaluated by BrdU-ELISA. Cells were treated with 0.1, 1, or 10 nmol/L testosterone (article number: T6147, Sigma-Aldrich, Taufkirchen, Germany); 0.1, 1, 5, or 10 nmol/L DHT (article number: D5027, Sigma-Aldrich, Taufkirchen, Germany) and R1881 (article number: R0908, Sigma-Aldrich, Taufkirchen, Germany); and 0.01, 0.1, 1, 5, 10, 100, 250, or 1000 nmol/L 3α-adiol and 3β-adiol (article number: A1170-000 for 3α-adiol and A1220-000 for 3β-adiol, both from Steraloids, Newport, Rhode Island, USA) for 48 h.
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2

Steroid hormone quantification protocol

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Reagents were of ACS grade or higher (e.g. HPLC and Optima LC/MS) and were purchased from Thermo Fisher Scientific and used without further purification. Testosterone, epiTestosterone (epi-T), DHEA, DHEA-S sodium salt, DHEA glucuronide (DHEA-G), AST, epi-AST, DHT, 5-adiol, 3α-adiol and 3β-adiol were purchased from Steraloids (Wilton, NH, USA). [2,3,4-13C3]-T ([13C3]-T) and [2,3,4-13C3]-DHT ([13C3]-DHT) were from C/D/N Isotopes (Point-Claire, Quebec, Canada) and Cambridge Isotopes (Andover, MA, USA), respectively. [2,3,4-13C3]-3α-adiol ([13C3]-3α-adiol) and [2,3,4-13C3]-3β-adiol ([13C3]-3β-adiol) were synthesized by an enzymatic method according to our published procedure (Zang et al. 2017 (link)). 4-Dimethylaminopyridine (DAP) 2-methyl-6-nitrobenzoic anhydride (MNBAn), picolinic acid (PA), triethylamine (TEA), anhydrous tetrahydrofuran (THF), β-glucuronidase from E. coli and sulfatase from Abalone entrails were from Sigma-Aldrich. Charcoal dextran stripped fetal bovine serum (CD-FBS) was from Atlanta Biologicals (Lawrenceville, GA, USA).
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3

Estrogen and Selective Modulators

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17β-estradiol, estradiol valerate and genistein were from Sigma-Aldrich (St. Louis, MO, USA). 3β-Adiol was from Steraloids (London, UK); raloxifen and tamoxifen were kindly obtained from Siena Biotech (Siena, Italy).
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4

Steroid Metabolite Quantification Protocol

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F, DHEA, Δ5-diol, E2, and fusaric acid (FA) were from Sigma-Aldrich (St. Louis, MO, USA). 7α-OH-DHEA and 3βAdiol were from Steraloids (Newport, RI, USA). F-d4 was from C/D/N Isotopes Inc. (Quebec, Canada). DHEA-13C3 was synthesized at Tohoku Pharmaceutical University (Miyagi, Japan). Δ5-diol-d4 and 7α-OH-DHEA-d2 were synthesized at ASKA Pharma Medical Co. Ltd. (Kanagawa, Japan). E2-13C4 was from Hayashi Pure Chemical Ind. Ltd. (Osaka, Japan). 4-dimethylaminopyridine (DMAP), 2-methyl-6-nitrobenzoic anhydride (MNBA), and picolinic acid (PA) were from Tokyo Chemical Industry (Tokyo, Japan). Triethylamine (TEA), O-ethylhydroxyl-ammonium chloride, pentafluoropyridine, and 1 M sodium hydroxide solutions were from Wako Pure Chemical Industries (Osaka, Japan). OASIS MAX cartridge (60 mg, 3 mL) was from Waters Corporation (Milford, MA, USA). InertSep SI cartridge (500 mg, 3 mL) was from GL Science (Tokyo, Japan). All other reagents and solvents were of analytical grade.
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