Interdisciplinary Bio Central
Etc. (Bioinformatics/Computational biology/Molecular modeling)

Inferring genetic regulatory networks of the inflammatory bowel disease in human peripheral blood mononuclear cells
Jinki Kim1, Doheon Lee2 and Gwan-Su Yi1,*
1School of Engineering, Information and Communication University
2Department of Bio and Brain Engineering, KAIST
*Corresponding author
  Published : May 31, 2007
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Cell phenotypes are determined by groups of functionally related genes. Microarray profiling of gene expression provides us response of cellular state to its perturbation. Several methods for uncovering a cellular network show reliable network reconstruction. In this study, we present reconstruction of gene regulatory network of inflammation bowel disease in human peripheral blood mononuclear cell. The microarray based on Affymetrix Gene Chip Human Genome U133 Array Set HG-U133A is processed and applied network reconstruction algorithm, ARACNe. As a result, we will show that inferred network composed of 450 nodes and 2017 edges is roughly scale-free network and hierarchical organization. The major hub, CCNL2 (cyclin A2), in inferred network is shown to be associated with inflammatory function as well as apoptotic function.

Keyword: Gene regulatory network, Microarray, ARACNe, Inflammation bowel disease
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