Correlation network analysis for data integration and biomarker selection

被引:43
作者
Adourian, Aram [1 ]
Jennings, Ezra [1 ]
Balasubramanian, Raji [1 ]
Hines, Wade M. [1 ]
Damian, Doris [1 ]
Plasterer, Thomas N. [1 ]
Clish, Clary B. [1 ]
Stroobant, Paul [1 ]
McBurney, Robert [1 ]
Verheij, Elwin R. [1 ,2 ]
Bobeldijk, Ivana [1 ,2 ]
Van der Greef, Jan [1 ,2 ]
Lindberg, Johan [3 ]
Kenne, Kerstin [3 ]
Andersson, Ulf [3 ]
Hellmold, Heike [3 ]
Nilsson, Kerstin [3 ]
Salter, Hugh [3 ]
Schuppe-Koistinen, Ina [3 ]
机构
[1] BG Med Inc, Waltham, MA USA
[2] TNO Quality Life, Dept Analyt Sci, Zeist, Netherlands
[3] AstraZeneca R&D, S-15185 Sodertalje, Sweden
关键词
D O I
10.1039/b708489g
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
High-throughput biomolecular pro. ling techniques such as transcriptomics, proteomics and metabolomics are increasingly being used in in vivo studies to recognize and characterize effects of xenobiotics on organs and systems. Of particular interest are biomarkers of treatment-related effects which are detectible in easily accessible biological fluids such as blood. A fundamental challenge in such biomarker studies is selecting among the plethora of biomolecular changes induced by a compound and revealed by molecular pro. ling, to identify biomarkers which are exclusively or predominantly due to specific processes. In this work we present a cross-compartment correlation network approach, involving no a priori supervision or design, to integrate proteomic, metabolomic and transcriptomic data for selecting circulating biomarkers. The case study we present is the identification of biomarkers of drug-induced hepatic toxicity effects in a rodent model. Biomolecular pro. ling of both blood plasma and liver tissue from Wistar Hannover rats administered a toxic compound yielded many hundreds of statistically significant molecular changes. We exploited drug-induced correlations between blood plasma analytes and liver tissue molecules across study animals in order to nominate selected plasma molecules as biomarkers of drug-induced hepatic alterations of lipid metabolism and urea cycle processes.
引用
收藏
页码:249 / 259
页数:11
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