Preliminary study of the urinary proteome in Li and Han ethnic individuals from Hainan  

作　　者：Fanshuang Zhang Xundou Li Yanying Ni Guangliang Shan Youhe Gao 

机构地区：[1]Department of Pathology,National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100021,China [2]Department of Pathophysiology,Institute of Basic Medical Sciences Chinese Academy of Medical Sciences,School of Basic Medicine Peking Union Medical College,Beijing 100005,China [3]Department of Epidemiology and Statistics,Institute of Basic Medical Sciences,Chinese Academy of Medical Sciences,School of Basic Medicine,Peking Union Medical College,Beijing 100005,China [4]Department of Biochemistry and Molecular Biology,Beijing Normal University,Gene Engineering Drug and Biotechnology Beijing Key Laboratory,Beijing 100875,China

出　　处：《Science China(Life Sciences)》2020年第1期125-137,共13页中国科学（生命科学英文版）

基　　金：supported by the National Key Research and Development Program of China(2018YFC0910202,2016YFC1306300);Beijing Natural Science Foundation(7172076);the Key Basic Research Program of the Ministry of Science and Technology of China(2013FY114100);Beijing Cooperative Construction Project(110651103);Beijing Normal University(11100704);Peking Union Medical College Hospital(2016-2.27)

摘　　要：Biomarkers indicate changes associated with disease. Blood is relatively stable due to the homeostatic mechanisms of the body;however, urine accumulates metabolites from changes in the body, making it a better source for early biomarker discovery. The Li ethnic group is a unique minority ethnic group that has only lived on Hainan Island for approximately 5,000 years. Studies have shown that various specific genetic variations are different between the Li and Han ethnic groups. However, whether the urinary proteome between these two ethnic groups is significantly different remains unknown. In this study, differential urinary proteins were identified in the Li and Han ethnic groups using liquid chromatography tandem mass spectrometry(LC-MS/MS).In total, 1,555 urinary proteins were identified. Twenty-five of the urinary proteins were statistically significantly different, 16 of which have been previously reported to be biomarkers of many diseases, and that these significantly different proteins were caused by ethnic differences rather than random differences. Ethnic group differences may be an influencing factor in urine proteome studies and should be considered when human urine samples are used for biomarker discovery.Biomarkers indicate changes associated with disease. Blood is relatively stable due to the homeostatic mechanisms of the body;however, urine accumulates metabolites from changes in the body, making it a better source for early biomarker discovery. The Li ethnic group is a unique minority ethnic group that has only lived on Hainan Island for approximately 5,000 years. Studies have shown that various specific genetic variations are different between the Li and Han ethnic groups. However, whether the urinary proteome between these two ethnic groups is significantly different remains unknown. In this study, differential urinary proteins were identified in the Li and Han ethnic groups using liquid chromatography tandem mass spectrometry(LC-MS/MS).In total, 1,555 urinary proteins were identified. Twenty-five of the urinary proteins were statistically significantly different, 16 of which have been previously reported to be biomarkers of many diseases, and that these significantly different proteins were caused by ethnic differences rather than random differences. Ethnic group differences may be an influencing factor in urine proteome studies and should be considered when human urine samples are used for biomarker discovery.

关 键 词：proteomics urine biomarker Li ethnic group Han ethnic group 

分 类 号：R446.12[医药卫生—诊断学]