Mirabolides A and B; New Cytotoxic Glycerides from the Red Sea Sponge Theonella mirabilis
作者:Dina Abou-Hussein、Diaa Youssef
DOI:10.3390/md14080155
日期:——
continuing work to find out bioactive lead molecules from marine invertebrates, the CHCl₃ fraction of the organic extract of the Red Sea sponge Theonella mirabilis showed cytotoxic activity in our primary screen. Bioassay-guided purification of the active fractions of the sponge's extract resulted in the isolation of two new glycerides, mirabolides A and B (1 and 2), together with the reported 4-methylene
作为我们从海洋无脊椎动物中发现生物活性铅分子的持续工作的一部分,红海海绵奇异菌Theonella mirabilis有机提取物中的CHCl3分数在我们的初筛中显示出细胞毒活性。生物测定法指导的海绵提取物活性成分的纯化导致分离出两种新的甘油酯,米拉波酯A和B(1和2),以及报道的4-亚甲基甾醇,圆锥甾醇(3)和swinhosterol B(4)。 。通过解释其1D(1H,(13)C),2D(COSY,HSQC,HMBC,ROESY)NMR光谱数据和高分辨率质量测定来确定化合物的结构。化合物1-4对人乳腺癌细胞系(MCF-7)表现出明显的细胞毒活性,与5相比,IC50值分别为16.4、5.18、6.23和3.0μg/ mL。