Book contents
- Frontmatter
- Contents
- List of contributors
- Foreword by Sidney Altman
- Foreword by Victor R. Ambros
- Introduction
- I Discovery of microRNAs in various organisms
- II MicroRNA functions and RNAi-mediated pathways
- III Computational biology of microRNAs
- IV Detection and quantitation of microRNAs
- V MicroRNAs in disease biology
- 22 Dysregulation of microRNAs in human malignancy
- 23 High throughput microRNAs profiling in cancers
- 24 Roles of microRNAs in cancer and development
- 25 miR-122 in mammalian liver
- 26 MiRNAs in glioblastoma
- 27 Role of microRNA pathway in Fragile X mental retardation
- 28 Insertion of miRNA125b-1 into immunoglobulin heavy chain gene locus mediated by V(D)J recombination in precursor B cell acute lymphoblastic leukemia
- 29 miRNAs in TPA-induced differentiation of HL-60 cells
- 30 MiRNAs in skeletal muscle differentiation
- 31 Identification and potential function of viral microRNAs
- 32 Lost in translation: regulation of HIV-1 by microRNAs and a key enzyme of RNA-directed RNA polymerase
- VI MicroRNAs in stem cell development
- Index
- Plate section
- References
24 - Roles of microRNAs in cancer and development
from V - MicroRNAs in disease biology
Published online by Cambridge University Press: 22 August 2009
- Frontmatter
- Contents
- List of contributors
- Foreword by Sidney Altman
- Foreword by Victor R. Ambros
- Introduction
- I Discovery of microRNAs in various organisms
- II MicroRNA functions and RNAi-mediated pathways
- III Computational biology of microRNAs
- IV Detection and quantitation of microRNAs
- V MicroRNAs in disease biology
- 22 Dysregulation of microRNAs in human malignancy
- 23 High throughput microRNAs profiling in cancers
- 24 Roles of microRNAs in cancer and development
- 25 miR-122 in mammalian liver
- 26 MiRNAs in glioblastoma
- 27 Role of microRNA pathway in Fragile X mental retardation
- 28 Insertion of miRNA125b-1 into immunoglobulin heavy chain gene locus mediated by V(D)J recombination in precursor B cell acute lymphoblastic leukemia
- 29 miRNAs in TPA-induced differentiation of HL-60 cells
- 30 MiRNAs in skeletal muscle differentiation
- 31 Identification and potential function of viral microRNAs
- 32 Lost in translation: regulation of HIV-1 by microRNAs and a key enzyme of RNA-directed RNA polymerase
- VI MicroRNAs in stem cell development
- Index
- Plate section
- References
Summary
Introduction
The recent discovery of microRNAs (miRNAs) and the factors that control their biogenesis and function has revealed novel and unexpected mechanisms for gene regulation (Ambros, 2004; Bartel, 2004; Bagga et al., 2005). The realization that microRNAs are involved in biological processes including cell proliferation, apoptosis and differentiation has led many to speculate that their abnormal function might contribute to the pathogenesis of human cancer (McManus, 2003; Chen, 2005; Couzin, 2005; Croce and Calin, 2005; Eder and Scherr, 2005; Gregory and Shiekhattar, 2005; Hammond, 2006). More recently, these speculations have been supported by experimental evidence including miRNA profiling of human and murine cancers, mutation analysis of human tumors and characterization of mice and cells carrying conditional and constitutive loss of function alleles of genes involved in microRNA biogenesis. Although considerable additional research is required, these initial results suggest that both a global change in miRNA expression and more specific alteration of individual miRNAs might contribute to tumorigenesis.
Here we will first review the evidence pointing to a role for global changes in miRNA expression in tumorigenesis and the methodologies used to detect these changes. We will further discuss the phenotypic consequences of loss of function mutations of Dicer1, an enzyme essential for miRNA biogenesis. Finally, we will explore individual miRNAs that have been implicated in the regulation of genes involved in oncogenesis.
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- Chapter
- Information
- MicroRNAsFrom Basic Science to Disease Biology, pp. 322 - 337Publisher: Cambridge University PressPrint publication year: 2007