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Attenuated retinoic acid signaling is among the early responses in mouse uterus approaching embryo attachment

Reproductive and Developmental Medicine 2024年第1期8卷 61-65页

作者： Honglu Diao Shuo Xiao Tong Zhou Taylor E.Martin Wendy T.Watford Xiaoqin Ye Department of Physiology and Pharmacology College of Veterinary MedicineUniversity of GeorgiaAthensGA 30602USA Interdisciplinary Toxicology Program University of GeorgiaAthensGA 30602USA Department of Physiology and cell Biology University of NevadaReno School of MedicineRenoNV 89557USA Department of Infectious Diseases College of Veterinary MedicineUniversity of GeorgiaAthensGA 30602USA

The uterus is transiently receptive for embryo *** remains to be understood why the uterus does not reject a semi-allogeneic embryo(to the biological mother)or an allogeneic embryo(to a surrogate)for *** gain insights,we examined uterine early response genes approaching embryo attachment on day 3 post coitum(D3)at 22 hours when blue dye reaction,an indication of embryo attachment,had not manifested in mice.C57BL/6 pseudo-pregnant(control)and pregnant mouse uteri were collected on D3 at 22 hours for microarray *** self-assembling-manifold(SAM)algorithm identified 21,858 unique *** component analysis indicated a clear separation between the pseudo-pregnant and pregnant *** were 106 upregulated and five downregulated protein-coding genes in the pregnant uterus with fold change(fc)>1.5 andq valuenatural killer(NK)cell activation *** the top eight upregulated protein-coding genes,Cyp26a1 inactivates retinoic acid(RA)whileLrat promotes vitamin A storage,both of which are expected to attenuate RA bioavailability;Atp6v0d2 andGjb2 play roles in ion transport and transmembrane transport;Gzmb,Gzmc,andIl2rb are involved in immune responses;andTdo2 is important for kynurenine *** of these genes or their related pathways have functions in immune *** signaling has been implicated in immune tolerance and immune homeostasis,and uterine NK cells have been implicated in immunotolerance at the maternal-fetal interface in the *** mechanisms of immune responses approaching embryo attachment remain to be *** coordinated effects of the early response genes may hold the keys to the question of why the uterus does not reject an implanting embryo.

关键词： Embryo attachment Pseudo-pregnant uterus Pregnant uterus natural killer cell activation signature Retinoic acid bioavailability Transmembrane transport and ion transport

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