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EnglishMicroRNAs (miRNAs) are known to control several reproductive functions, including oocyte maturation, implantation and early embryonic development. Recent advances in deep sequencing have allowed the analysis of all miRNAs of a sample. However, when working with embryos, due to the low RNA content, miRNA profiling is challenging because of the relatively large amount of total RNA required for library preparation protocols. In the present study we compared three different procedures for RNA extraction and prepared libraries using pools of 30 bovine blastocysts. In total, 14 of the 15 most abundantly expressed miRNAs were common to all three procedures. Furthermore, using miRDeep discovery and annotation software (Max Delbrück Center), we identified 1363 miRNA sequences, of which bta-miR-10b and bta-miR-378 were the most abundant. Most of the 179 genes identified as experimentally validated (86.6%) or predicted targets (13.4%) were associated with cancer canonical pathways. We conclude that reliable analysis of bovine blastocyst miRNAs can be achieved using the procedures described herein. The repeatability of the results across different procedures and independent replicates, as well as their consistency with results obtained in other species, support the biological relevance of these miRNAs and of the gene pathways they modulate in early embryogenesis.
Profiling bovine blastocyst microRNAs using deep sequencing / R. Pasquariello, B. Fernandez-Fuertes, F. Strozzi, F. Pizzi, R. Mazza, P. Lonergan, F. Gandolfi, J.L. Williams. - In: REPRODUCTION FERTILITY AND DEVELOPMENT. - ISSN 1031-3613. - 29:8(2017), pp. 1545-1555.
| Titolo: | Profiling bovine blastocyst microRNAs using deep sequencing |
| Autori: | |
| Parole Chiave: | epigenetics; gene regulation; RNA; Animals; Blastocyst; Cattle; Epigenesis, Genetic; Female; Gene Expression Profiling; MicroRNAs; Pregnancy; Gene Expression Regulation, Developmental; High-Throughput Nucleotide Sequencing; Biotechnology; Reproductive Medicine; Animal Science and Zoology; Molecular Biology; Genetics; Endocrinology; Developmental Biology |
| Settore Scientifico Disciplinare: | Settore VET/01 - Anatomia degli Animali Domestici |
| Data di pubblicazione: | 2017 |
| Rivista: | |
| Tipologia: | Article (author) |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1071/RD16110 |
| Appare nelle tipologie: | 01 - Articolo su periodico |
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