ArticleMolecular biotechnology2018
Identification of Reference Genes for Analysis of microRNA Expression Patterns in Equine Chorioallantoic Membrane and Serum.
Article in Molecular biotechnology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 15 citations in OpenAlex.
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- Expression Profile of the Chromosome 14 MicroRNA Cluster (C14MC) Ortholog in Equine Maternal Circulation throughout Pregnancy and Its Potential Implications.International journal of molecular sciences · 2019Article
- Kinetics of the chromosome 14 microRNA cluster ortholog and its potential role during placental development in the pregnant mare.BMC genomics · 2018Article
- Downregulation of MicroRNA eca-mir-128 in Seminal Exosomes and Enhanced Expression of CXCL16 in the Stallion Reproductive Tract Are Associated with Long-Term Persistence of Equine Arteritis Virus.Journal of virology · 2018Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MicroRNAs (miRNAs) have important posttranscriptional regulatory abilities, and there is considerable interest in evaluating their expression patterns in different pathophysiological states. The most common method of quantifying miRNA expression is quantitative reverse transcription PCR; however, the identification of tissue-specific and species-specific reference miRNA is a prerequisite for miRNA expression analysis. Currently, no reference genes have been described for evaluating miRNA expression in equine serum and chorioallantoic membrane (CAM) during pregnancy. The aim of the present study was to characterize reference genes for normalization of miRNA expression in CAM and serum in the pregnant equine. To identify the most stable miRNAs in serum, expression of potential candidates was evaluated in serum samples from diestrous mares, pregnant mares and geldings. To identify the most stable miRNAs in CAM, expression of potential candidates was evaluated in CAM, collected from mares at 4, 6 and 10 months of pregnancy and immediately postpartum. From a previously generated miRNA sequencing dataset, two separate lists of potential reference miRNAs were identified (serum and CAM) using the NormFinder program, in addition to the commonly used small RNA normalizers, 5S rRNA and U6 snRNA. The putative reference miRNAs were selected using geNorm and NormFinder. In case of a nonsignificant correlation between the results of ranking and stability value between these two programs, ranking from BestKeeper was also included. NormFinder and geNorm consistently identified eca-miR-21-5p, eca-let-7a-5p and eca-miR-10a-5p as the three most stable reference genes for the normalization of serum miRNAs. Within CAM samples, the average ranking obtained from the ranking of NormFinder, geNorm and BestKeeper identified eca-miR-8908a-1-5p, eca-miR-369-5p and eca-miR-106a-5p as the three most stable miRNAs. These observations provide information about equine-specific reference genes that can be used for normalizing miRNAs expression patterns in CAM and serum during the equine pregnancy.
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