Document Detail


LINE-1 Retrotransposition in the Nervous System.
MedLine Citation:
PMID:  23057747     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Long interspersed element-1 (LINE-1 or L1) is a repetitive DNA retrotransposon capable of duplication by a copy-and-paste genetic mechanism. Scattered throughout mammalian genomes, L1 is typically quiescent in most somatic cell types. In developing neurons, however, L1 can express and retrotranspose at high frequency. The L1 element can insert into various genomic locations including intragenic regions. These insertions can alter the dynamic of the neuronal transcriptome by changing the expression pattern of several nearby genes. The consequences of L1 genomic alterations in somatic cells are still under investigation, but the high level of mutagenesis within neurons suggests that each neuron is genetically unique. Furthermore, some neurological diseases, such as Rett syndrome and ataxia telangiectasia, misregulate L1 retrotransposition, which could contribute to some pathological aspects. In this review, we survey the literature related to neurodevelopmental retrotransposition and discuss possible relevance to neuronal function, evolution, and neurological disease.
Authors:
Charles A Thomas; Apuã C M Paquola; Alysson R Muotri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annual review of cell and developmental biology     Volume:  28     ISSN:  1530-8995     ISO Abbreviation:  Annu. Rev. Cell Dev. Biol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9600627     Medline TA:  Annu Rev Cell Dev Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  555-73     Citation Subset:  IM    
Affiliation:
Department of Pediatrics/Rady Children's Hospital San Diego, Department of Cellular & Molecular Medicine, Stem Cell Program, University of California San Diego, School of Medicine, La Jolla, California 92093; email: muotri@ucsd.edu.
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