Oscillatory dynamics in a simple gene regulatory network mediated by small RNAs

More and more experiments show that small RNAs regulate gene expression by repressing translation of messenger RNAs (mRNAs) or degrading mRNAs. In this paper, we incorporate the small RNAs into a simple gene regulatory network and investigate its dynamical behaviors. In addition, we also derive the theoretical results of globally asymptotic stability and provide the sufficient conditions for the oscillation of the simple gene regulatory network, and further demonstrate that the amplitudes against the change of delay in the gene regulatory network are robust.

[1]  K. Aihara,et al.  Stability of genetic regulatory networks with time delay , 2002 .

[2]  Ming-Jing Hwang,et al.  The role of microRNA in the delayed negative feedback regulation of gene expression. , 2007, Biochemical and biophysical research communications.

[3]  Phillip D. Zamore,et al.  Ribo-gnome: The Big World of Small RNAs , 2005, Science.

[4]  R. Shiekhattar,et al.  The Microprocessor complex mediates the genesis of microRNAs , 2004, Nature.

[5]  Ruiqi Wang,et al.  Modelling periodic oscillation of biological systems with multiple timescale networks. , 2004, Systems biology.

[6]  Ryoichiro Kageyama,et al.  Instability of Hes7 protein is crucial for the somite segmentation clock , 2004, Nature Genetics.

[7]  E. Wagner,et al.  Switching on and off with RNA. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[8]  S. Ruan,et al.  On the zeros of a third degree exponential polynomial with applications to a delayed model for the control of testosterone secretion. , 2001, IMA journal of mathematics applied in medicine and biology.

[9]  Kazuyuki Aihara,et al.  Dynamics of gene regulatory networks with cell division cycle. , 2004, Physical review. E, Statistical, nonlinear, and soft matter physics.

[10]  Herbert Levine,et al.  Target-specific and global effectors in gene regulation by MicroRNA. , 2007, Biophysical journal.

[11]  J. Dunlap Molecular Bases for Circadian Clocks , 1999, Cell.

[12]  S. Gottesman Micros for microbes: non-coding regulatory RNAs in bacteria. , 2005, Trends in genetics : TIG.

[13]  Stefan Zeiser,et al.  Number of active transcription factor binding sites is essential for the Hes7 oscillator , 2006, Theoretical Biology and Medical Modelling.

[14]  V. Ambros The functions of animal microRNAs , 2004, Nature.

[15]  Julian Lewis Autoinhibition with Transcriptional Delay A Simple Mechanism for the Zebrafish Somitogenesis Oscillator , 2003, Current Biology.

[16]  Luonan Chen,et al.  Biomolecular Networks: Methods and Applications in Systems Biology , 2009 .

[17]  T. Hwa,et al.  Quantitative Characteristics of Gene Regulation by Small RNA , 2007, PLoS Biology.

[18]  John G Doench,et al.  Specificity of microRNA target selection in translational repression. , 2004, Genes & development.

[19]  G. Friedlander,et al.  Regulation of gene expression by small non-coding RNAs: a quantitative view , 2007, Molecular systems biology.

[20]  G. Storz,et al.  An abundance of RNA regulators. , 2005, Annual review of biochemistry.

[21]  L. Lim,et al.  A microRNA component of the p53 tumour suppressor network , 2007, Nature.

[22]  Kazuyuki Aihara,et al.  Modeling and Analyzing Biological Oscillations in Molecular Networks , 2008, Proceedings of the IEEE.

[23]  D. Bartel MicroRNAs Genomics, Biogenesis, Mechanism, and Function , 2004, Cell.

[24]  N. Monk Oscillatory Expression of Hes1, p53, and NF-κB Driven by Transcriptional Time Delays , 2003, Current Biology.