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AKT1-FOXO4 Axis Regulates Hemochorial Placentation

ABSTRACT: AKT1-FOXO4 Axis Regulates Hemochorial Placentation

PROVIDER: PRJNA847904 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19616400_1.fastq.gz	Fastqsanger.gz
	SRR19616400_2.fastq.gz	Fastqsanger.gz
	SRR19616401_1.fastq.gz	Fastqsanger.gz
	SRR19616401_2.fastq.gz	Fastqsanger.gz
	SRR19619601_1.fastq.gz	Fastqsanger.gz

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AKT1-FOXO4 Axis Regulates Hemochorial Placentation [Foxo4-KO-JZ]

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AKT1-FOXO4 Axis Regulates Hemochorial Placentation [Foxo4-KD-rTSC]

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AKT1-FOXO4 Axis Regulates Hemochorial Placentation [Foxo4-KO-JZ]

Project description:AKT1 is a serine/threonine kinase implicated in fetal, placental, and postnatal growth. In this study, we investigated roles for AKT1 in placental development using a genome-edited/loss-of-function rat model. Both heterozygous and homozygous Akt1 mutant rats were viable and fertile. Disruption of AKT1 resulted in placental, fetal, and postnatal growth restriction. Akt1 null placentas showed deficits in both junctional zone and labyrinth zone size and their ability to adapt to a physiological stressor. Robust differences in the transcriptome of wild type versus Akt1 null junctional zones were identified. Among the differentially expressed junctional zone transcripts was forkhead box O4 (Foxo4), which encodes a transcription factor and known AKT substrate. FOXO4 expression was prominent in the junctional zone and invasive trophoblast cells of the rat placentation site and enhanced following rat TS cell differentiation. Foxo4 gene disruption using genome-editing resulted in placentomegaly, including an enlarged junctional zone. AKT1 and FOXO4 regulate the expression of many of the same transcripts expressed by trophoblast cells; however, in opposite directions. In summary, we have identified AKT1 and FOXO4 as part of a regulatory network controlling hemochorial placenta development.

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AKT1-FOXO4 Axis Regulates Hemochorial Placentation [Foxo4-KD-rTSC]

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The AKT1-FOXO4 axis reciprocally regulates hemochorial placentation.

Project description:Hemochorial placentation involves the differentiation of invasive trophoblast cells, specialized cells that possess the capacity to exit the placenta and invade into the uterus where they restructure the vasculature. Invasive trophoblast cells arise from a well-defined compartment within the placenta, referred to as the junctional zone in rat and the extravillous trophoblast cell column in human. In this study, we investigated roles for AKT1, a serine/threonine kinase, in placental development using a genome-edited/loss-of-function rat model. Disruption of AKT1 resulted in placental, fetal and postnatal growth restriction. Forkhead box O4 (Foxo4), which encodes a transcription factor and known AKT substrate, was abundantly expressed in the junctional zone and in invasive trophoblast cells of the rat placentation site. Foxo4 gene disruption using genome editing resulted in placentomegaly, including an enlarged junctional zone. AKT1 and FOXO4 regulate the expression of many of the same transcripts expressed by trophoblast cells, but in opposite directions. In summary, we have identified AKT1 and FOXO4 as part of a regulatory network that reciprocally controls critical indices of hemochorial placenta development.

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AKT1-FOXO4 Axis Regulates Hemochorial Placentation

Project description:This SuperSeries is composed of the SubSeries listed below.

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Project description:Intersection of Regulatory Pathways Controlling Hemostasis and Hemochorial Placentation

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Intersection of Regulatory Pathways Controlling Hemostasis and Hemochorial Placentation [human]

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Intersection of Regulatory Pathways Controlling Hemostasis and Hemochorial Placentation [rat I]

Project description:Intersection of Regulatory Pathways Controlling Hemostasis and Hemochorial Placentation [rat I]