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- W2991396247 abstract "Abstract Conceptus development and elongation is required for successful pregnancy establishment in ruminants and is coincident with the production of interferon τ (IFNT) and prostaglandins (PGs). In both the conceptus trophectoderm and endometrium, PGs are primarily synthesized through a prostaglandin‐endoperoxide synthase 2 (PTGS2) pathway and modify endometrial gene expression and thus histotroph composition in the uterine lumen to promote conceptus growth and survival. Chemical inhibition of PG production by both the endometrium and the conceptus prevented elongation in sheep. However, the contributions of conceptus‐derived PGs to preimplantation conceptus development remain unclear. In this study, CRISPR‐Cas9 genome editing was used to inactivate PTGS2 in ovine embryos to determine the role of PTGS2‐derived PGs in conceptus development and elongation. PTGS2 edited conceptuses produced fewer PGs, but secreted similar amounts of IFNT to their Cas9 control counterparts and elongated normally. Expression of PTGS1 was lower in PTGS2 edited conceptuses, but PPARG expression and IFNT secretion were unaffected. Content of PGs in the uterine lumen was similar as was gene expression in the endometrium of ewes who received either Cas9 control or PTGS2 edited conceptuses. These results support the idea that intrinsic PTGS2‐derived PGs are not required for preimplantation embryo or conceptus survival and development in sheep." @default.
- W2991396247 created "2019-12-05" @default.
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- W2991396247 date "2019-11-20" @default.
- W2991396247 modified "2023-09-27" @default.
- W2991396247 title "Prostaglandin‐endoperoxide synthase 2 is not required for preimplantation ovine conceptus development in sheep" @default.
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- W2991396247 doi "https://doi.org/10.1002/mrd.23300" @default.
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