Predictive modeling of miRNA-mediated predisposition to alcohol-related phenotypes in mouse

BMC Genomics
Pratyaydipta RudraLaura M Saba

Abstract

MicroRNAs (miRNAs) are small non-coding RNAs that bind messenger RNAs and promote their degradation or repress their translation. There is increasing evidence of miRNAs playing an important role in alcohol related disorders. However, the role of miRNAs as mediators of the genetic effect on alcohol phenotypes is not fully understood. We conducted a high-throughput sequencing study to measure miRNA expression levels in alcohol naïve animals in the LXS panel of recombinant inbred (RI) mouse strains. We then combined the sequencing data with genotype data, microarry gene expression data, and data on alcohol-related behavioral phenotypes such as 'Drinking in the dark', 'Sleep time', and 'Low dose activation' from the same RI panel. SNP-miRNA-gene triplets with strong association within the triplet that were also associated with one of the 4 alcohol phenotypes were selected and a Bayesian network analysis was used to aggregate results into a directed network model. We found several triplets with strong association within the triplet that were also associated with one of the alcohol phenotypes. The Bayesian network analysis found two networks where a miRNA mediates the genetic effect on the alcohol phenotype. The miRNAs were found to ...Continue Reading

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Citations

Nov 15, 2019·BMC Genomics·Gordon KordasKaterina Kechris

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Methods Mentioned

BETA
ISS

Software Mentioned

package
miRbase
miRPath
bnlearn
multiMiR
ComBat
R
Ensembl
miRDeep2
sketch

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