双龙方干预骨髓间充质干细胞分化过程中代谢组学研究
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摘要
双龙方是由丹参和人参两味药材所组成的中药复方配伍,具有“益气养血、活血通脉”的功能,适用于治疗冠心病、心绞痛和心肌梗死等心血管疾病。
     骨髓间充质干细胞(MSCs)在一定条件之下定向分化为心肌细胞,对细胞移植治疗心肌梗死有重要的意义。本论文在代谢组学的层面上,研究中药复方双龙方对大鼠骨髓间充质干细胞的干预结果,寻找细胞代谢物在诱导过程中的变化。为此我们先对复方的组分配伍(总丹酚酸、人参总皂苷)及成分配伍(Sal B、Rb1)进行化学分析,通过HPLC/MS的方法确定了其中的11种化学成分,明确复方当中的化学组成。
     然后又采用了离子对色谱法进行分离,离子阱质谱仪作检测,建立起分析MSCs代谢物的HPLC/MS方法,筛选出30种细胞代谢物,包括了核苷酸类、氨基酸类和糖代谢类,对其中的28种进行定量,并作了方法学考察。
     在上述的基础上,进行了细胞代谢物组学研究。考察了干细胞在第0、10、20、30和35天的分化情况,比较空白组、5-aza诱导组、双龙方组分组和双龙方成分组之间的差别,得到了初步结果。双龙方组分组和5-aza诱导组中,有5种代谢物(AMP、Tau、ADP、Glu和Thr)在诱导第35天时浓度水平接近,说明这两个组具有相似疗效,与实验室前有的结果相符合。体现出中药复方配伍的必要性和科学性,在一定程度上具有与西药相似的治疗效果。结果对双龙方干预MSCs分化中代谢物的变化情况提供了参考。
Shuang Long Fang, which is composed of DanShen and JinShen, is a traditional Chinese medicine compound compatibitity. It is suitable for treating the cardiovascular disease such as coronary heart disease, angina and myocardial infarction.
     Bone Marrow Mesenchymal Stem Cells(MSCs) can differentiate towards cardiomyocytes directly under certain conditions. This is a good news about treating the myocardial infarction by cell transplantation. The thesis is to find out the intervened result from MSCs of rats by the Chinese Traditional Medicine Shuang Long Fang on the level of metabolomics. So we can find out the change of cell metabolites caused by induction. First we have analyzed the component compatibility(Salvianolic acid and Ginsenosides) and composition compatibility(Sal B and Rb1) of the Shuang Long Fang compound. By using the HPLC/MS method, we confirmed 11 chemical compositions in it.
     Then we used the Ion-pair chromatography and the Ion Trap mass spectrometry to separate and detect the metabolites of MSCs. We screened out 30 cell metabolites and 28 of them were quantified. Metabolites include nucleotides, amino acids and glycometabolism. The research of methodology is also carried out.
     On the basis of these, we developed the study of metabolomics. The experiment obsevered the cell differentiation at the time point of 0, 10, 20, 30 and 35days. And a comparation of the Blank Group, 5-aza-induced Group, Shuang Long Fang component Group and Shuang Long Fang composition Group has been finished. The primary results have been found. We have found the concentration level of 5 metabolites(AMP, Tau, ADP, Glu,and Thr) is similar in the group of 5-aza-induced and Shuang Long Fang component, when the induction time reached 35 days. It is showed that this two groups have the similar curative effect, so this is coincident with the results concluded by our Laboratory before. So the compound compatibility of Traditional Chinese Medicine is necessary and scientific. The curative effect is similar to Western medicine to some extent. The result provided the references of the changing rules of metabolites in the intervention of MSCs by Shuang Long Fang.
引文
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