A parallel approach for accelerated parameter identification of Gene Regulatory Networks

Model Checking is one of the formal verication methods which can be used to infer parameters of a Gene Regulatory Network (GRN) using discrete formalism of Ren e Thomas. However, the sequen- tial approach for identication of these logical parameters is computa- tionally intensive and takes lot of processing time, depending on number of genes and range of their expression levels in a network. In this paper, we present an ecient approach for this problem, based on parallel com- puting. We partition the parameter space into subsets and assign them to processing elements on a distributed memory parallel computer. The presented approach is implemented by using OpenMPI and existing tool SMBioNet. The experimental results indicate that the approach is scal- able and achieves 7X speed-up, for a relatively small GRN, comprising of ve genes.

[1]  El Houssine Snoussi,et al.  Logical identification of all steady states: The concept of feedback loop characteristic states , 1993 .

[2]  Hidde de Jong,et al.  Modeling and Simulation of Genetic Regulatory Systems: A Literature Review , 2002, J. Comput. Biol..

[3]  Marco Pistore,et al.  NuSMV 2: An OpenSource Tool for Symbolic Model Checking , 2002, CAV.

[4]  R. Albert Boolean modeling of genetic regulatory networks , 2004 .

[5]  Gilles Bernot,et al.  Epigenetic acquisition of inducibility of type III cytotoxicity in P. aeruginosa , 2006, BMC Bioinformatics.

[6]  U. Niazi,et al.  Formal Modeling and Analysis of the MAL-Associated Biological Regulatory Network: Insight into Cerebral Malaria , 2012, PloS one.

[7]  Adrien Richard,et al.  Boolean Models of Biosurfactants Production in Pseudomonas fluorescens , 2012, PloS one.

[8]  Franck Delaplace,et al.  Semantics of Biological Regulatory Networks , 2007, Electron. Notes Theor. Comput. Sci..

[9]  Stephan Merz,et al.  Model Checking , 2000 .

[10]  Adrien Richard,et al.  Formal Methods for Modeling Biological Regulatory Networks , 2006 .

[11]  Mustafa Khammash,et al.  Parameter Estimation and Model Selection in Computational Biology , 2010, PLoS Comput. Biol..

[12]  Wei-Po Lee,et al.  Computational methods for discovering gene networks from expression data , 2009, Briefings Bioinform..

[13]  A. Barabasi,et al.  Network biology: understanding the cell's functional organization , 2004, Nature Reviews Genetics.

[14]  Didier Lime,et al.  Hybrid Modelling and Dynamical Analysis of Gene Regulatory Networks with Delays , 2007, Complexus.

[15]  George Bosilca,et al.  Open MPI: Goals, Concept, and Design of a Next Generation MPI Implementation , 2004, PVM/MPI.

[16]  Adrien Richard,et al.  Application of formal methods to biological regulatory networks: extending Thomas' asynchronous logical approach with temporal logic. , 2004, Journal of theoretical biology.

[17]  J. Comet,et al.  The SMBioNet Method for Discovering Models of Gene Regulatory Networks , 2009 .