Downloads provided by UsageCounts
Abstract Background Increasing evidence points to an active role of oviductal extracellular vesicles (oEVs) in the early embryo-maternal dialogue. However, it remains unclear whether oEVs contribute to the recognition of the presence of embryos and their quality in the oviduct. Hence, we examined whether the molecular cargo of oEVs secreted by bovine oviduct epithelial cells (BOEC) differs depending on the presence of good (≥ 8 cells, G) or poor (< 8 cells, P) quality embryos. In addition, differences in RNA profiles between G and P embryos were analyzed in attempt to distinguish oEVs and embryonic EVs cargos. Methods For this purpose, primary BOEC were co-cultured with in vitro produced embryos (IVP) 53 h post fertilization as follows: BOEC with G embryos (BGE); BOEC with P embryos (BPE); G embryos alone (GE); P embryos alone (PE); BOEC alone (B) and medium control (M). After 24 h of co-culture, conditioned media were collected from all groups and EVs were isolated and characterized. MicroRNA profiling of EVs and embryos was performed by small RNA-sequencing. Results In EVs, 84 miRNAs were identified, with 8 differentially abundant (DA) miRNAs for BGE vs. B and 4 for BPE vs. B (P-value < 0.01). In embryos, 187 miRNAs were identified, with 12 DA miRNAs for BGE vs. BPE, 3 for G vs. P, 8 for BGE vs. GE, and 11 for BPE vs. PE (P-value < 0.01). Conclusions These results indicated that oEVs are involved in the oviductal-embryo recognition and pointed to specific miRNAs with signaling and supporting roles during early embryo development.
10077 Institute of Veterinary Anatomy, RNA-sequencing, Oviducts, QH426-470, Exosomes, Extracellular Vesicles, 1311 Genetics, Oviductal epithelial cells, Genetics, Animals, Fallopian Tubes, miRNA, Research, Epithelial Cells, Oviduct, 10175 Clinic for Reproductive Endocrinology, Extracellular vesicles, Embryo, Mammalian, Bos taurus, Coculture Techniques, 10187 Department of Farm Animals, MicroRNAs, Embryo, 1305 Biotechnology, 570 Life sciences; biology, Female, Cattle, TP248.13-248.65, Biotechnology
10077 Institute of Veterinary Anatomy, RNA-sequencing, Oviducts, QH426-470, Exosomes, Extracellular Vesicles, 1311 Genetics, Oviductal epithelial cells, Genetics, Animals, Fallopian Tubes, miRNA, Research, Epithelial Cells, Oviduct, 10175 Clinic for Reproductive Endocrinology, Extracellular vesicles, Embryo, Mammalian, Bos taurus, Coculture Techniques, 10187 Department of Farm Animals, MicroRNAs, Embryo, 1305 Biotechnology, 570 Life sciences; biology, Female, Cattle, TP248.13-248.65, Biotechnology
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 8 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
| views | 37 | |
| downloads | 49 |

Views provided by UsageCounts
Downloads provided by UsageCounts