在硅胶G板上,以正丁醉-26%氨水-无水乙醇(30:3:1)为展开剂,用薄层扫描法分离测定了中国姜黄属植物毛郁金Curcuma aromatica Salisb.,温郁金C. wenyujin Y. H. Chen et C.Ling(or C. aromatica cv. Wenyujin),莪术C. aeruginosa Roxb.,...在硅胶G板上,以正丁醉-26%氨水-无水乙醇(30:3:1)为展开剂,用薄层扫描法分离测定了中国姜黄属植物毛郁金Curcuma aromatica Salisb.,温郁金C. wenyujin Y. H. Chen et C.Ling(or C. aromatica cv. Wenyujin),莪术C. aeruginosa Roxb.,黄莪术C. zedoaria (Christm.)Rosc.,桂莪术C. kwangsiensis S. G. Lee et C. F. Liang,川郁金C. chuanyujin C. K. Hsich et H.Zhang,姜黄C. longa L.根茎中姜黄素(curcumin),去甲氧基姜黄素(demethoxycurcumin),双去甲氧基姜黄素(bisdemethoxycurcumin)和总姜黄素(curcuminoids)的含量,回收率97.07%～102.0%(n=6),变异系数为3.1%～5.0%。展开更多
Objective To investigate the effects of bisdemethoxycurcumin （BDMC） on non-small cell lung cancer （NSCLC） cell line, A549, and the highly metastatic lung cancer 95D cells. Methods CCK-8 assay was used to assess th...Objective To investigate the effects of bisdemethoxycurcumin （BDMC） on non-small cell lung cancer （NSCLC） cell line, A549, and the highly metastatic lung cancer 95D cells. Methods CCK-8 assay was used to assess the effect of BDMC on cytotoxicity. Flow cytometry was used to evaluate apoptosis. Western blot analysis, electron microscopy, and quantification of GFP-LC3 punctuates were used to test the effect of BDMC on autophagy and apoptosis of lung cancer cells. Results BDMC inhibited the viability of NSCLC cells, but had no cytotoxic effects on lung small airway epithelial cells （SAECs）. The apoptotic cell death induced by BDMC was accompanied with the induction of autophagy in NSCLC cells. Blockage of autophagy by the autophagy inhibitor 3-methyladenine （3-MA） repressed the growth inhibitory effects and induction of apoptosis by BDMC. In addition, BDMC treatment significantly decreased smoothened （SMO） and the transcription factor glioma-associated oncogene 1 （G1il） expression. Furthermore, depletion of Gill by siRNA and cyclopamine （a specific SMO inhibitor） induced autophagy. Conclusion Aberrant activation of Hedgehog （Hh） signaling has been implicated in several human cancers, including lung cancers. The present findings provide direct evidence that BDMC-induced autophagy plays a pro-death role in NSCLC, in part, by inhibiting Hedgehog signaling.展开更多
文摘在硅胶G板上,以正丁醉-26%氨水-无水乙醇(30:3:1)为展开剂,用薄层扫描法分离测定了中国姜黄属植物毛郁金Curcuma aromatica Salisb.,温郁金C. wenyujin Y. H. Chen et C.Ling(or C. aromatica cv. Wenyujin),莪术C. aeruginosa Roxb.,黄莪术C. zedoaria (Christm.)Rosc.,桂莪术C. kwangsiensis S. G. Lee et C. F. Liang,川郁金C. chuanyujin C. K. Hsich et H.Zhang,姜黄C. longa L.根茎中姜黄素(curcumin),去甲氧基姜黄素(demethoxycurcumin),双去甲氧基姜黄素(bisdemethoxycurcumin)和总姜黄素(curcuminoids)的含量,回收率97.07%～102.0%(n=6),变异系数为3.1%～5.0%。
基金supported by a grant from the National Science Foundation(Grant number 81102857)
文摘Objective To investigate the effects of bisdemethoxycurcumin （BDMC） on non-small cell lung cancer （NSCLC） cell line, A549, and the highly metastatic lung cancer 95D cells. Methods CCK-8 assay was used to assess the effect of BDMC on cytotoxicity. Flow cytometry was used to evaluate apoptosis. Western blot analysis, electron microscopy, and quantification of GFP-LC3 punctuates were used to test the effect of BDMC on autophagy and apoptosis of lung cancer cells. Results BDMC inhibited the viability of NSCLC cells, but had no cytotoxic effects on lung small airway epithelial cells （SAECs）. The apoptotic cell death induced by BDMC was accompanied with the induction of autophagy in NSCLC cells. Blockage of autophagy by the autophagy inhibitor 3-methyladenine （3-MA） repressed the growth inhibitory effects and induction of apoptosis by BDMC. In addition, BDMC treatment significantly decreased smoothened （SMO） and the transcription factor glioma-associated oncogene 1 （G1il） expression. Furthermore, depletion of Gill by siRNA and cyclopamine （a specific SMO inhibitor） induced autophagy. Conclusion Aberrant activation of Hedgehog （Hh） signaling has been implicated in several human cancers, including lung cancers. The present findings provide direct evidence that BDMC-induced autophagy plays a pro-death role in NSCLC, in part, by inhibiting Hedgehog signaling.
