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PMID: 15496526 Published · ppublish English Comparative Study Journal Article Research Support, Non-U.S. Gov't

Probing microRNAs with microarrays: tissue specificity and functional inference.

RNA (New York, N.Y.) ·Vol. 10 ·No. 11 ·2004-11-00 ·Pages 1813-9

Babak T, Zhang W, Morris Q, Blencowe BJ, Hughes TR

Abstract

MicroRNAs (miRNAs) are short, stable, noncoding RNAs involved in post-transcriptional gene silencing via hybridization to mRNA. Few have been thoroughly characterized in any species. Here, we describe a method to detect miRNAs using micro-arrays, in which the miRNAs are directly hybridized to the array. We used this method to analyze miRNA expression across 17 mouse organs and tissues. More than half of the 78 miRNAs detected were expressed in specific adult tissues, suggesting that miRNAs have widespread regulatory roles in adults. By comparing miRNA levels to mRNA levels determined in a parallel microarray analysis of the same tissues, we found that the expression of target mRNAs predicted on the basis of sequence complementarity is unrelated to the tissues in which the corresponding miRNA is expressed.

MeSH Terms
Animals Female Fluorescent Dyes Gene Expression Profiling Male Mice/genetics MicroRNAs/genetics,metabolism Oligonucleotide Array Sequence Analysis Organ Specificity RNA Processing, Post-Transcriptional RNA, Messenger/analysis Sensitivity and Specificity Sequence Analysis, DNA Tissue Distribution
Chemicals
Fluorescent Dyes MicroRNAs RNA, Messenger
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Babak Tomas
Banting and Best Department of Medical Research, 112 College St., University of Toronto, Toronto, Ontario M5G 1L6, Canada.
Zhang Wen
Morris Quaid
Blencowe Benjamin J
Hughes Timothy R
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Article Info
Journal
RNA (New York, N.Y.)
Abbr.
RNA
ISSN
1355-8382
Published
2004-11-00
Pages
1813-9
Language
English
Region
United States
NLM ID
9509184
PMCID
PMC1370668
Subset
IM
Corrections
ErratumIn
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