Document Detail


Mobile microRNAs hit the target.
MedLine Citation:
PMID:  21777357     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
MicroRNAs (miRNAs) are negative regulators of gene expression in eukaryotic organisms, whereas small interfering RNAs (siRNAs) guide host cell defence against viruses, transposons and transgenes. A key issue in plant biology is whether miRNAs act only in cells in which they are formed, or if like siRNAs, they also function after passive diffusion or active transportation into other cells. Recent reports show that miRNAs are indeed able to move between plant cells to direct developmental programming of gene expression. In both leaf and root development, miRNAs establish intercellular gradients of gene expression that are essential for cell and tissue differentiation. Gradients in gene expression also play crucial roles in animal development, and there is strong evidence for intercellular movement of miRNAs in animals. Thus, intercellular movement of miRNAs may be crucial to animal developmental biology as well as plants.
Authors:
Nial R Gursanscky; Iain R Searle; Bernard J Carroll
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-20
Journal Detail:
Title:  Traffic (Copenhagen, Denmark)     Volume:  -     ISSN:  1600-0854     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100939340     Medline TA:  Traffic     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 John Wiley & Sons A/S.
Affiliation:
1 School of Chemistry and Molecular Biosciences, The University of Queensland, QLD, 4072, Australia. 2 Research School of Biology, Australian National University, Canberra, ACT, 0200, Australia.
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