Luan Yunpeng, Li Yanmei, Yue Xiaoguan, Cao Yong, Xiang Fei, Mao Dechang, Xiong Zhi
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, China.
Department of Life Technology Teaching and Research, School of Life Science, Southwest Forestry University, China.
Saudi J Biol Sci. 2019 Jul;26(5):1003-1010. doi: 10.1016/j.sjbs.2018.11.010. Epub 2018 Nov 16.
Intestinal cancer is a disease with high morbidity and high mortality in China. Previous studies have shown that Codonopsis foetens can inhibit cellular autophagy and promote the apoptosis of intestine cancer cells. Based on metabolomics method coupled with liquid chromatography-mass spectrometry (LC-MS) technology, we aimed to analyze intestinal small molecule metabolites in the intestinal cancer model group and the Codonopsis foetens treated group. Principal component analysis (PCA) and Partial Least Squares (PLS-DA) were used to identify the pattern of the data. And the metabolic characteristics of the cancer model group were explored based on the metabolic differences between the groups. Multivariate statistical analysis revealed that metabolites presented with differences included: Acetamide, Phosphoric acid, Hydrogen sulfite, Pyruvic acid, Cytosine, 2-Hydroxypyridine, Phosphoric acid, Uracil, Gamma-Aminobutyric acid, Glycerol alpha-monochlorohydrin, Thiosulfic acid, L-Valine, Cysteamine, Taurine, Creatine, Homocysteine, Hypoxanthine, Se-Methylselenocysteine, 5-Hydroxymethyluracil, Oxoglutaric acid, LysoPC(20:0), LysoPC(22:4(7Z,10Z,13Z,16Z)), LysoPC(18:2(9Z,12Z)), LysoPC(16:1(9Z)), LysoPE(0:0/16:0), LysoPE(0:0/18:2(9Z,12Z)), LysoPE(18:0/0:0), LysoPE(20:1(11Z)/0:0), etc. Combined with metabolic pathway analysis, pathways presented with differences included: Citrate cycle (TCA cycle), ABC transporters, 2-Oxocarboxylic acid metabolism, Taurine and hypotaurine metabolism, Butanoate metabolism), Phenylalanine, tyrosine and tryptophan biosynthesis, Biosynthesis of amino acids, Protein digestion and absorption, Aminoacyl-tRNA biosynthesis, C5-Branched dibasic acid metabolism, GABAergic synapse, Proximal tubule bicarbonate reclamation, Mineral absorption, Phenylalanine metabolism. The results showed that the proliferation of intestinal cancer cells caused cell metabolism disorders, manifesting as changes in metabolic pathways and resulting in changes in metabolites.
在我国,肠癌是一种发病率和死亡率都很高的疾病。以往研究表明,臭党参可抑制细胞自噬并促进肠癌细胞凋亡。基于代谢组学方法结合液相色谱 - 质谱联用(LC - MS)技术,我们旨在分析肠癌模型组和臭党参治疗组的肠道小分子代谢物。采用主成分分析(PCA)和偏最小二乘法判别分析(PLS - DA)来识别数据模式。并基于组间代谢差异探索癌症模型组的代谢特征。多元统计分析显示存在差异的代谢物包括:乙酰胺、磷酸、亚硫酸氢盐、丙酮酸、胞嘧啶、2 - 羟基吡啶、磷酸、尿嘧啶、γ - 氨基丁酸、甘油α - 一氯醇、硫代亚磺酸、L - 缬氨酸、半胱胺、牛磺酸、肌酸、同型半胱氨酸、次黄嘌呤、硒 - 甲基硒代半胱氨酸、5 - 羟甲基尿嘧啶、草酰戊二酸、溶血磷脂酰胆碱(20:0)、溶血磷脂酰胆碱(22:4(7Z,10Z,13Z,16Z))、溶血磷脂酰胆碱(18:2(9Z,12Z))、溶血磷脂酰胆碱(16:1(9Z))、溶血磷脂酰乙醇胺(0:0/16:0)、溶血磷脂酰乙醇胺(0:0/18:2(9Z,12Z))、溶血磷脂酰乙醇胺(18:0/0:0)、溶血磷脂酰乙醇胺(20:1(11Z)/0:0)等。结合代谢途径分析,存在差异的途径包括:柠檬酸循环(TCA循环)、ABC转运蛋白、2 - 氧代羧酸代谢、牛磺酸和亚牛磺酸代谢、丁酸代谢、苯丙氨酸、酪氨酸和色氨酸生物合成、氨基酸生物合成、蛋白质消化和吸收、氨酰 - tRNA生物合成C5 - 支链二元酸代谢、GABA能突触、近端小管碳酸氢盐回收、矿物质吸收、苯丙氨酸代谢。结果表明,肠癌细胞的增殖导致细胞代谢紊乱,表现为代谢途径的改变并导致代谢物的变化。