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
29 - miRNAs in TPA-induced differentiation of HL-60 cells
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
miRNA is a group of small RNAs about 22 nt in length involved in the regulation of gene expression at the translational level (Grosshans and Slack, 2002; Bartel, 2004). Growing evidence indicates that miRNAs act as guides for recognizing their target mRNAs in RISC complexes by hybridizing to target sites in the 3′ UTR of mRNAs with at least a 7 nt complete match to the 5′ 2 to 8 sequence of miRNA and about a 70% complementarity in total (Brennecke et al., 2005; Lewis et al., 2005). Most miRNAs are phylogenetically highly conserved as well as in their sequences that recognize target mRNA sites mRNAs (Berezikov et al., 2005). Given the broad target recognition of miRNAs, a vast number of target sequences should exist in the genome. To date, about 330 species of miRNA have been identified in the human genome, and it is predicted that each miRNA regulates several hundred target genes and that more than 30% of the total genes are regulated by miRNAs (Bartel and Chen, 2004; John et al., 2004; Lim et al., 2005). miRNAs are encoded in genes transcribed by RNA polymerase II as an independent gene or in the intron of other genes, so that miRNA expression is regulated according to their function in a tissue- and/or stage-specific manner (Lagos-Quintana et al., 2002; Lee et al., 2004; Hsu et al., 2006).
- Type
- Chapter
- Information
- MicroRNAsFrom Basic Science to Disease Biology, pp. 380 - 391Publisher: Cambridge University PressPrint publication year: 2007