华泽兰内生真菌Septoriella phragrnitis次级代谢产物及其生物活性研究OA北大核心CSTPCD
Secondary metabolites of endophytic fungus Septoriella phragmitis from Eupatorium chinense and its bioactivity
为研究华泽兰内生真菌Septoriella phragmitis的化学成分及其生物活性,运用硅胶柱柱色谱、半制备高效液相色谱等方法对其进行分离提纯,结合现代波谱技术鉴定化合物结构,从Septoriella phragmitis提取液中分离得到10个化合物,分别鉴定为腺苷(1)、cyclo-(S-Pro-S-Ile)(2)、5-羟基-2-羟甲基-4H-哌喃-4-酮(3)、3α-hydroxyartemisinic acid(4)、leptosphaerone C(5)、1-氨基四氢化萘(6)、泽兰素(7)、β-吲哚基丙氨酸(8)、环(丙氨酸-酪氨酸)二肽(9)、β-D-fructopyranocy-(2→6)-D-glucopyranose(10),所有化合物均为首次从华泽兰内生真菌 Septoriella phragmitis 中分离.对所得化合物采用对硝基苯基-β-吡喃半乳糖苷法测定α-葡萄糖苷酶抑制活性,对硝基苯磷酸盐法测定PTP1B抑制活性,MTT法测定胃癌细胞HGC-27抑制活性,标准精度对接法进行分子对接.化合物6和7有α-葡萄糖苷酶抑制活性,IC50值分别为8.1、8.6 μg/mL;化合物6、7和9有PTP1B抑制活性,IC50值分别为6.5、8.2、0.5 μg/mL;化合物5和6有胃癌细胞HGC-27抑制活性,IC50值分别为12.2、16.8 μg/mL.分子对接显示化合物6和7与α-葡萄糖苷酶和PTP1B蛋白有较强关联性,可作抗糖尿病先导化合物进行后续研究.
To study the chemical constituents and biological activities of the endophytic fungus Septoriella phragmitis,Silica gel column chromatography,semi-preparative high performance liquid chromatography and other methods were used to isolated and purified compounds.Modern spectrum technologies were applied to identify the structures of thoese isolated compunds.As a result,ten compounds were isolated from the extract of Septoriella phragmitis for the first time,named β-adenosine(1),cy-clo-(S-Pro-S-Ile)(2),5-hydroxy-2-methylol-4H-pyrane-4-ketone(3),3α-hydroxyartemisinic acid(4),leptosphaerone C(5),5,6,7,8-tetrahydronaphthalen-1-amine(6),euparin(7),tryptophan(8),cyclo-(Ala-Tyr)(9),β-D-fructopyranocy-(2→6)-D-glucopyranose(10).The α-glucosidase inhibitory activity of the obtained compounds was determined by p-nitro-phenyl-β-galactopyranoside method,the PTP1B inhibitory activity was determined by p-nitrophenyl phosphate method,the in-hibitory activity of gastric cancer cell HGC-27 was determined by MTT method,and the molecular docking was performed by standard precision docking method.Compounds 6 and 7 showed α-glucosidase inhibitory activity with IC50values of 8.1 and 8.6 μg/mL,respectively.Compounds 6,7 and 9 showed PTP1B inhibitory activity with IC50 values of 6.5,8.2 and 0.5μg/mL,respectively.Compounds 5 and 6 showed inhibitory activity against gastric cancer cell HGC-27 with IC50 values of 12.2 and 16.8 μg/mL,respectively.Molecular docking showed that compounds 6 and 7 had a strong correlation with α-gluco-sidase and PTP1B protein,which could be used as anti-diabetic lead compounds for subsequent research.
张梦娇;邝天浩;赵金诺;朱婷;彭娟娟
三峡大学生物与制药学院天然产物研究与利用湖北省重点实验室(中国轻工业功能酵母重点实验室),宜昌 443002
中医学
华泽兰Septoriella phragmitis次级代谢产物生物活性
Eupatorium chinenseSeptoriella phragmitissecondary metabolitesbioactivities
《天然产物研究与开发》 2024 (006)
986-992 / 7
天然产物研究与利用湖北省重点实验室(三峡大学)开放基金(2022NPRD03);国家级大学生创新创业训练计划(20231075023)
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