Synthesis of novel 5,6-dehydrokawain analogs as osteogenic inducers and their action mechanisms
作者:Momochika Kumagai、Keisuke Nishikawa、Takashi Mishima、Izumi Yoshida、Masahiro Ide、Keiko Koizumi、Munetomo Nakamura、Yoshiki Morimoto
DOI:10.1016/j.bmcl.2017.04.016
日期:2017.6
protein (BMP) and activation of p38 MAPK signaling pathways. Compounds 14 and 21 also inhibited RANKL-induced osteoclast differentiation of RAW264 cells. These results indicated that novel 5,6-dehydrokawain analogs not only increase osteogenic activity but also inhibit osteoclast differentiation, and could be potential lead compounds for the development of anti-osteoporosis agents.
破骨细胞的骨吸收和成骨细胞的骨形成之间的不平衡会导致骨丢失和骨相关疾病。在之前对增加成骨活性的天然产品的搜索中,我们发现来自 Alpinia zerumbet 的 5,6-dehydrokawain (1) 可促进成骨细胞生成。在这项研究中,我们合成并评估了一系列 5,6-dehydrokawain 类似物。我们的构效关系表明,1 芳环的对位或间位烷基化促进了成骨活性。在我们合成的潜在类似物中,(E)-6-(4-Ethylstyryl)-4-methoxy-2H-pyran-2-one (14) 和 (E)-6-(4-Butylstyryl)-4-methoxy- 2H-pyran-2-one (21) 在 10µM 时均显着上调 Runx2 和 Osterix mRNA 表达。这些成骨活性可能由骨形态发生蛋白 (BMP) 和 p38 MAPK 信号通路的激活介导。化合物 14 和 21 还抑制