{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T21:47:55Z","timestamp":1790027275347,"version":"4.0.1"},"reference-count":71,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"32","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2022,8,12]]},"abstract":"<jats:p>\n            Mechanisms of implantation such as determination of the attachment pole, fetal-maternal communication, and underlying causes of implantation failure are largely unexplored. Here, we performed single-cell RNA sequencing on peri-implantation embryos from both humans and mice to explore trophectoderm (TE) development and embryo-endometrium cross-talk. We found that the transcriptomes of polar and mural TE diverged after embryos hatched from the zona pellucida in both species, with polar TE being more mature than mural TE. The implantation poles show similarities in cell cycle activities, as well as in expression of genes critical for implantation and placentation. Embryos that either fail to attach in vitro or fail to implant in vivo show abnormalities in pathways related to energy production, protein metabolism, and 18\n            <jats:italic>S<\/jats:italic>\n            ribosomal RNA m\n            <jats:sup>6<\/jats:sup>\n            A methylation. These findings uncover the gene expression characteristics of humans and mice TE differentiation during the peri-implantation period and provide new insights into embryo implantation.\n          <\/jats:p>","DOI":"10.1126\/sciadv.abj3725","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T17:57:31Z","timestamp":1660154251000},"source":"Crossref","is-referenced-by-count":67,"title":["Primary specification of blastocyst trophectoderm by scRNA-seq: New insights into embryo implantation"],"prefix":"10.1126","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2880-9365","authenticated-orcid":true,"given":"Dandan","family":"Liu","sequence":"first","affiliation":[{"name":"Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China."},{"name":"National Clinical Research Center for Obstetrics and Gynecology, Beijing 100191, China."},{"name":"Key Laboratory of Assisted 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