153336-97-1Relevant academic research and scientific papers
Antioxidant xanthone derivatives induce cell cycle arrest and apoptosis and enhance cell death induced by cisplatin in NTUB1 cells associated with ROS
Cheng, Jen-Hao,Huang, A-Mei,Hour, Tzyh-Chyuan,Yang, Shyh-Chyun,Pu, Yeong-Shiau,Lin, Chun-Nan
scheme or table, p. 1222 - 1231 (2011/04/22)
In an effort to develop novel antioxidant as anticancer agents, a series of xanthones were prepared. In vitro screening, the synthetic xanthones revealed significant inhibitory effects on xanthine oxidase and ABTS radical-cation scavenging activity. The selective compounds 2 and 8 induced an accumulation of NTUB1 cells in the G1 phase arrest and cellular apoptosis by the increase of ROS level. The combination of cisplatin and 2 significantly enhanced the cell death in NTUB1 cells. Compounds 2 and 8 did not show cytotoxic activity in selected concentrations against SV-HUC1 cells. The present results suggested that antioxidants 2 and 8 may be used as anticancer agent for enhancing the therapeutic efficacy of anticancer agents and to reduce their side effect.
Synthesis, antiplatelet and vasorelaxing activities of xanthone derivatives
Lin, Kai-Wei,Fang, Song-Chwan,Hung, Chi-Feng,Shieh, Bor-Jinn,Yang, Shyh-Chyun,Teng, Che-Ming,Lin, Chun-Nan
experimental part, p. 19 - 26 (2009/05/27)
A series of ω-aminoalkoxylxanthones was synthesized and tested in vitro for their ability to inhibit platelet aggregation and cause vasorelaxing action. Compounds 4, 5, 12, 17, and 18 showed significant antiplatelet effects on thrombin-, arachidonic acid (AA)-, collagen-, and platelet activating factor (PAF)-induced washed rabbit platelet aggregation and exhibited inhibition of primary and secondary aggregation induced by adenosine-5′-diphosphate (ADP) in human platelet-rich-plasma (PRP). Compounds 4, 17, and 18 revealed vasorelaxing activities in rat thoracic aorta. We concluded that these compounds may be developed as new antithrombotic agents.
Synthesis and antiplatelet effects of ω-aminoalkoxylxanthones
Lin,Liou,Lai,Lin,Ko,Liu,Teng
, p. 588 - 594 (2007/10/03)
A series of ω-aminoalkoxylxanthones were synthesized and tested in-vitro for their ability to inhibit aggregation of rabbit washed platelets and human platelet-rich plasma (PRP) induced by various inducers. Nine of these compounds showed more potent antiplatelet effects than natural norathyriol tetraacetate on collagen-induced aggregation. The various ω-aminoalkoxyl side chains of the synthesized compounds modified the antiplatelet effects. All the compounds tested in human PRP showed significant inhibition of secondary aggregation induced by adrenaline, suggesting that the antiplatelet effects of these compounds is mainly due to an inhibitory effect on thromboxane formation. These compounds at high concentration also cause vasorelaxing action in rat thoracic aorta.
γ-Pyrone compounds. 5. Synthesis and antiplatelet effects of xanthonoxypropanolamines and related compounds
Liou,Teng,Ko,Lin
, p. 391 - 395 (2007/10/02)
A series of simple xanthonoxypropanolamines and related compounds were synthesized. 3-[3-(Cyclopropylamino)propoxy]-xanthone showed same potent antiplatelet effects as norathyriol tetraacetate on arachidonate-induced aggregation. 3-[3-(Cyclohexylamino)-2-hydroxypropoxy]xanthone showed more potent antiplatelet effects than norathyriol tetraacetate on collagen- induced aggregation. The various amino groups of the oxypropanolamine or oxypropylamine side chains of the synthesized compounds regulated the antiplatelet effects.
