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Effect of LXR agonist T0901317 on the intestinal transcriptome in mice.

ABSTRACT: Mice were treated for three days by oral gavage with the synthetic LXR ligand T0901317 (Cayman chemical, USA) using a dose of 50 mg/kg/day in vehicle (0.5% Carboxy-methylcellulose; 400 cPs (Sigma-Aldrich, USA); 0.2% Tween80 (Sigma-Aldrich, USA)) or solely the vehicle (control group). Mice were anesthetized with isoflurane and euthanized by cardiac puncture followed by cervical dislocation. Intestines were flushed with ice cold PBS and frozen in liquid nitrogen.

ORGANISM(S): Mus musculus

PROVIDER: GSE110528 | GEO | 2020/10/27

REPOSITORIES: GEO

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Project description:The developmental origins of adult disease are now recognized to reflect intrauterine conditions during embryonic and fetal life. Cell-cell communication between the maternal endometrium and the pre-implantation embryo can occur by several means. Here, we show that maternal miRNAs are secreted by the endometrial epithelium to the endometrial fluid. Microarray assessments revealed the presence of specific miRNAs that are associated with the window of implantation and therefore in direct contact with the human preimplantation embryo. These miRNAS are transported as free or exosome-associated molecules secreted to the endometrial fluid and then uptake into the pre-implantation embryo through the trophoectoderm. Finally, these maternal miRNAs were able to induce transcriptional and functional modifications of the embryo. Therefore, we propose an innovative model whereby endometrial maternal miRNAS may function as transcriptomic regulators during early embryo development offering a new perspective on the developmental origins of adult diseases such as obesity, type 2 diabetes, and others that are now recognized to reflect intrauterine conditions. The B6C3F1 mice strain was purchased. Female mice aged 6M-bM-^@M-^S8 weeks were primed to ovulate by administering 10 IU pregnant mare serum gonadotropin(Sigma-Aldrich, Irvine, UK), followed by administration of 10 IU hCG(Sigma-Aldrich, Irvine, UK), 48 hours later. Females were housed overnight with male breeders and examined the following morning for the presence of a vaginal plug (day 1 of pregnancy). On day 2 of pregnancy, mice were sacrificed by cervical dislocation, and embryos flushed with PBS from the oviduct using a blunt 30-gauge needle. Then, embryos were cultured in CCM-30 medium (Vitrolife, Lubeck, Germany) in presence or absence of 400nM of mir-30d MIMIC or Scramble-Alexa 488 for 72 hours. Then embryos are four times washed in fresh CCM. Experiment were carried out by triplicate and with 30 embryos/condition

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Effect of LXR agonist T0901317 on the intestinal transcriptome in mice.

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