The role of microRNA in the delayed negative feedback regulation of gene expression.
Biochem Biophys Res Commun
; 358(3): 722-6, 2007 Jul 06.
Article
em En
| MEDLINE
| ID: mdl-17509530
ABSTRACT
Oscillatory gene expression plays an important role in somite segmentation during the early developmental stages of vertebrates. Recent experimental studies have shown that microRNA can regulate gene expression by stimulating degradation of mRNA and/or repression of translation. In this communication, we incorporate miRNA into a previous mathematical model of gene expression with delayed negative feedback and demonstrate how this modified model can elucidate the possible effect of miRNA on the oscillatory gene expression. Our finding suggests that miRNA maybe a destabilizing or stabilizing factor in the dynamics of gene expression depending on the severity of its effect on mRNA degradation. Our finding provides testable hypothesis for experimental biologists to further investigate miRNA's increasing functional roles in regulating cellular processes and development.
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Base de dados:
MEDLINE
Assunto principal:
Regulação da Expressão Gênica
/
Retroalimentação Fisiológica
/
MicroRNAs
/
Fatores de Transcrição Hélice-Alça-Hélice Básicos
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article