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2015 ; 61
(11
): 1333-42
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Data Normalization Strategies for MicroRNA Quantification
#MMPMID26408530
Schwarzenbach H
; da Silva AM
; Calin G
; Pantel K
Clin Chem
2015[Nov]; 61
(11
): 1333-42
PMID26408530
show ga
BACKGROUND: Different technologies, such as quantitative real-time PCR or
microarrays, have been developed to measure microRNA (miRNA) expression levels.
Quantification of miRNA transcripts implicates data normalization using
endogenous and exogenous reference genes for data correction. However, there is
no consensus about an optimal normalization strategy. The choice of a reference
gene remains problematic and can have a serious impact on the actual available
transcript levels and, consequently, on the biological interpretation of data.
CONTENT: In this review article we discuss the reliability of the use of small
RNAs, commonly reported in the literature as miRNA expression normalizers, and
compare different strategies used for data normalization. SUMMARY: A workflow
strategy is proposed for normalization of miRNA expression data in an attempt to
provide a basis for the establishment of a global standard procedure that will
allow comparison across studies.