DHEA (Prasterone) 是最-丰富的类固醇激素之一。 DHEA通过多种信号传导途径介导其作用，并通过转化成雄激素和雌激素衍生物（例如，雄激素，雌激素，7α和7β DHEA (Prasterone)，以及7α和7β表雄甾酮衍生物）通过其特异性受体起作用。
DHEA (Prasterone) 是最-丰富的类固醇激素之一。 DHEA通过多种信号传导途径介导其作用，并通过转化成雄激素和雌激素衍生物（例如，雄激素，雌激素，7α和7β DHEA (Prasterone)，以及7α和7β表雄甾酮衍生物）通过其特异性受体起作用。
生物活性
DHEA (Prasterone) is one of the most abundant steroid hormones. DHEA (Prasterone) mediates its action via multiple signaling pathways involving specific membrane receptors and via transformation into androgen and estrogen derivatives (e.g., androgens, estrogens, 7α and 7β DHEA, and 7α and 7β epiandrosterone derivatives) acting through their specific receptors
IC50 & Target
Human Endogenous Metabolite
体外研究(In Vitro)
DHEA (Prasterone) is an effective antiapoptotic factor, reversing the serum deprivation-induced apoptosis in prostate cancer cells (DU145 and LNCaP cell lines) as well as in colon cancer cells (Caco2 cell line). DHEA (Prasterone) significantly reduces serum deprivation-induced apoptosis in all 3 cancer cell types, quantitated with the APOPercentage assay (apoptosis is reduced from 0.587±0.053 to 0.142±0.0016 or 0.059±0.002 after treatment for 12 hours with DHEA or NGF, respectively; n=3, P<0.01), and by flow cytometry analysis (FACS) for DU145 cells. The antiapoptotic effect of DHEA is dose dependent with an EC50 at nanomolar concentrations (EC50: 11.2±3.6 nM and 12.4±2.2 nM in DU145 and Caco2 cells, respectively)[1]. DHEA (Prasterone) is the principal sex steroid precursor in humans and can be converted directly to androgens. DHEA (Prasterone) (≥1 μM) causes a dose-dependent inhibition of Chub-S7 proliferation, as assessed by thymidine incorporation assays. DHEA (Prasterone) treatment inhibits expression of the key glucocorticoid-regulating genes H6PDH (≥100 nM) and HSD11B1 (≥1 μM) in differentiating preadipocytes in a dose-dependent manner. In keeping with this finding, DHEA (Prasterone) treatment (≥1 μM) results in a marked reduction in 11β-HSD1 oxoreductase activity (≥1 μM) and a concurrent increase in dehydrogenase activity at the highest DHEA dose used (25 μM DHEA) in differentiated adipocytes[2].
体内研究(In Vivo)
DHEA (Prasterone) in the diet (0.45 % w/w) of male B6 mice (groups of five mice) treated for 8 weeks led to significant decreases in body temperature compared with mice fed the control AIN-76A diet. A similar comparison indicated that control and pair-fed mice are also significantly different. Animals fed DHEA (Prasterone) have significantly lower temperatures than mice fed the control diet 26/29 times tested; mice pair fed to those on the DHEA (Prasterone) diet are less affected, with 8/29 values significantly lower than in mice fed AIN-76A ad libitum. The temperatures of mice fed DHEA (Prasterone) or pair fed to DHEA (Prasterone) are significantly different 21/29 times tested. Body weights are significantly greater in mice fed the control diet than in mice fed DHEA or pair fed to DHEA (Prasterone). Food intake (grams per day) from cages are averaged for each week (n=7), except for Week 9 (n=3). The amount of food intake is significantly decreased in mice fed DHEA (Prasterone). By design, mice pair fed to DHEA (Prasterone) ate about the same amount. Thus, it appears that DHEA (Prasterone) reduces body temperature by food restriction and by a separate mechanism[3].
分子量：288.42
Formula：C19H28O2
CAS 号：53-43-0
中文名称：脱氢表雄酮；去氢表雄酮；脱氢表雄甾酮；脱氢异雄酮；反式-脱氢异雄甾酮；反式-脱氢雄甾酮；脱氢表雄至素酮
运输条件：Room temperature in continental US; may vary elsewhere.
储存方式：
| Powder | -20°C | 3 years |
|---|---|---|
| 4°C | 2 years | |
| In solvent | -80°C | 6 months |
| -20°C | 1 month |
溶解性数据
Ethanol : 50 mg/mL (173.36 mM; Need ultrasonic)
DMSO : 50 mg/mL (173.36 mM; Need ultrasonic)
H2O : 1 mg/mL (3.47 mM; Need ultrasonic)
| 浓度溶剂体积质量 | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 3.4672 mL | 17.3358 mL | 34.6717 mL |
| 5 mM | 0.6934 mL | 3.4672 mL | 6.9343 mL |
| 10 mM | 0.3467 mL | 1.7336 mL | 3.4672 mL |
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。
以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：
——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶
请依序添加每种溶剂： Cremophor EL
Solubility: 14.29 mg/mL (49.55 mM); Clear solution; Need ultrasonic
请依序添加每种溶剂： 10% DMSO 90% corn oil
Solubility: ≥ 2.5 mg/mL (8.67 mM); Clear solution
请依序添加每种溶剂： 10% EtOH 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (8.67 mM); Clear solution
请依序添加每种溶剂： 10% EtOH 90% corn oil
Solubility: ≥ 2.5 mg/mL (8.67 mM); Clear solution
请依序添加每种溶剂： 5% DMSO 95% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (8.67 mM); Clear solution
请依序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 1.25 mg/mL (4.33 mM); Clear solution
请依序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 1.25 mg/mL (4.33 mM); Clear solution
参考文献
[1]. Anagnostopoulou V, et al. Differential effects of dehydroepiandrosterone and testosterone in prostate and colon cancer cell apoptosis: the role of nerve growth factor (NGF) receptors. Endocrinology. 2013 Jul;154(7):2446-56.
[2]. McNelis JC, et al. Dehydroepiandrosterone exerts anti-glucocorticoid action on human preadipocyte proliferation, differentiation and glucose uptake. Am J Physiol Endocrinol Metab. 2013 Nov 1;305(9):E1134-44.
[3]. Catalina F, et al. Decrease of core body temperature in mice by dehydroepiandrosterone. Exp Biol Med (Maywood). 2002 Jun;227(6):382-8.
注：产品仅用于科研
