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2016 ; 7
(51
): 85613-85623
Nephropedia Template TP
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Which statistical significance test best detects oncomiRNAs in cancer tissues? An
exploratory analysis
#MMPMID27784000
Tang W
; Liao Z
; Zou Q
Oncotarget
2016[Dec]; 7
(51
): 85613-85623
PMID27784000
show ga
MicroRNAs(miRNAs) often exert their oncogenic and tumor suppressor functions by
suppressing protein-coding genes expressions in cancers and thus have a strong
association with cancers' generation, development and metastasis. Through
comprehensively understanding differentially expressed miRNAs (oncomiRNA) in
tumor tissues, we can elucidate the underlying molecular mechanisms in
tumorigenesis and develop novel strategies for cancer diagnosis and treatment.
The differential expression of miRNAs can now be analyzed through numerous
statistical significance tests based on different principles, which are also
available in various R packages. However, the results can be notably different.
In this study, we compared miRNAs obtained from 6 common significance tests/R
packages (t-test, Limma, DESeq, edgeR, LRT and MARS) with the miRNAs archived in
two databases; HMDD 2.0 database, which collects experimentally validated
differentially expressed miRNAs, and Infer microRNA-disease association database,
which contains the potential disease-associated miRNAs by network forecasting.
Finally, we sought the MARS method in DEGseq package more effectively searched
out differentially expressed miRNAs than other common methods.
|*Models, Statistical
[MESH]
|*Transcriptome
[MESH]
|Area Under Curve
[MESH]
|Biomarkers, Tumor/*genetics
[MESH]
|Computational Biology/statistics & numerical data
[MESH]
|Data Interpretation, Statistical
[MESH]
|Databases, Genetic/statistics & numerical data
[MESH]
|Gene Expression Profiling/*statistics & numerical data
[MESH]