Provided herein are steroidal compounds that are androsta-5,7-dienes or a pregna-5,7-dienes and ultraviolet B (UVB) conversion products thereof which includes pharmaceutical compositions of the steroidal compounds as shown in Tables 1 and 2. Also provided is a method for producing hydroxylated metabolites of cholecalciferol or ergocalciferol via the P450scc (CYP11A1) or CYP27B1 enzyme systems where the hydroxylase has an activity to hydroxylate position C20 of a secosteroid or its 5,7-dieneal precursor and the hydroxylated metabolites so produced. In addition, a method for inhibiting proliferation of either a normally or abnormally proliferating cell by contacting the cell with any of the compounds described herein. A related method is provided of treating a condition associated with the proliferating cell such as a cancer, a skin disorder, a defect in cell differentiation, cosmetic, prophylaxsis, or healthy cell maintenance.
本文提供的是雄甾-5,7-二烯或孕甾-5,7-二烯及其紫外线B(UVB)转化产物的类
固醇化合物,其中包括所示的表1和表2的类
固醇化合物的药物组成。此外,还提供了一种通过P450scc(CYP11A1)或CYP27B1酶系统产生
维生素D3或
维生素D2的羟化代谢产物的方法,其中羟化酶具有羟化一个类
固醇的C20位置或其5,7-二烯前体的活性,以及所产生的羟化代谢产物。此外,还提供了一种通过接触任何本文所述的化合物来抑制正常或异常增殖细胞增殖的方法。还提供了一种相关的方法,用于治疗与增殖
细胞相关的疾病,例如癌症,皮肤疾病,细胞分化缺陷,美容,预防或维持健康的细胞。