Pig conceptuses secrete estrogen and interferons to differentially regulate uterine STAT1 in a temporal and cell type-specific manner.

@article{Joyce2007PigCS,
  title={Pig conceptuses secrete estrogen and interferons to differentially regulate uterine STAT1 in a temporal and cell type-specific manner.},
  author={Margaret M. Joyce and Robert C. Burghardt and Rodney D. Geisert and James R. Burghardt and R. Neil Hooper and Jason W. Ross and Morgan D. Ashworth and Greg A Johnson},
  journal={Endocrinology},
  year={2007},
  volume={148 9},
  pages={
          4420-31
        }
}
Conceptus trophectoderm and uterine luminal epithelial cells interact via endocrine, paracrine, and autocrine modulators to mediate pregnancy recognition and implantation. Pig conceptuses not only release estrogens for pregnancy recognition but also secrete interferons during implantation. Because interferon-stimulated genes are increased by interferons secreted for pregnancy recognition in ruminants, we asked whether the interferon-stimulated gene, STAT1, is up-regulated in pig endometrium by… 
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TLDR
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TLDR
Information about maternal-conceptus interactions with respect to endometrial gene expression in response to conceptus-derived factors is addressed, focusing on the roles of estrogen and IL1B during early pregnancy in pigs.
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TLDR
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Analysis of STAT1 expression and biological activity reveals interferon-tau-dependent STAT1-regulated SOCS genes in the bovine endometrium.
TLDR
Investigating STAT1 transcript and protein expression, as well as its biological activity in bovine tissue and cells of endometrial origin, provides novel molecular insights into the biological functions of STAT1 in the various cells composing the endometrium during maternal pregnancy recognition and implantation.
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TLDR
Understanding the roles of the variety of hormones, growth factors and endogenous retroviral proteins in uterine receptivity for implantation is essential to enhancing reproductive health and fertility in humans and domestic animals.
Interferons and uterine receptivity.
TLDR
The potential roles of interferons (IFNs) in establishing uterine receptivity to implantation are focused on to develop approaches to enhance reproductive health and fertility in humans and domestic animals.
Conceptus interferon gamma is essential for establishment of pregnancy in the pig
TLDR
Results indicate conceptus IFNG production is essential in modulating the endometrial proinflammatory response for conceptus attachment and survival in pigs.
Cytokines from the pig conceptus: roles in conceptus development in pigs
TLDR
This review will establish the current knowledge for the role of conceptus cytokine production and release in early development and establishment of pregnancy in the pig.
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References

SHOWING 1-10 OF 78 REFERENCES
Pig Conceptuses Increase Uterine Interferon-Regulatory Factor 1 (IRF1), but Restrict Expression to Stroma Through Estrogen-Induced IRF2 in Luminal Epithelium1
TLDR
The results suggest that conceptus estrogen induces IRF2 in the LE and limits the induction of IRF1 by conceptus IFNs to the stroma, which highlights the complex and overlapping events that are associated with gene expression during the peri-implantation period.
Pregnancy recognition and conceptus implantation in domestic ruminants: roles of progesterone, interferons and endogenous retroviruses.
TLDR
The goal of improving reproductive efficiency by preventing embryonic losses that occur during the peri-implantation period of pregnancy in domestic ruminants provides the challenge to increase the knowledge of endometrial function and conceptus development.
Identification and Implantation Stage-Specific Expression of an Interferon-α-Regulated Gene in Human and Rat Endometrium.
TLDR
The isolation of a complementary DNA representing a novel gene, interferon-regulated gene 1 (IRG1) is reported, which exhibits significant homology tointerferon (IFN)-α/β−inducible human genes p27 and 6–16, indicating that these genes may belong to the same family.
Keratinocyte growth factor is up-regulated by estrogen in the porcine uterine endometrium and functions in trophectoderm cell proliferation and differentiation.
TLDR
Results indicate that estrogen, the pregnancy recognition signal from the conceptus in pigs, increases uterine epithelial KGF expression, and, in turn, KGF stimulates the proliferation and differentiation of conceptus trophectoderm.
Interferon stimulated gene 15 conjugates to endometrial cytosolic proteins and is expressed at the uterine-placental interface throughout pregnancy in sheep.
TLDR
These results are the first to show in vivo regulation of ISG15 function (i.e. conjugation to target proteins) by a type I IFN in the uterus of any species and thatISG15 is expressed at contacts between the placenta and uterus when trophectoderm no longer produces IFNtau.
Interferon Regulatory Factor-Two Restricts Expression of Interferon-Stimulated Genes to the Endometrial Stroma and Glandular Epithelium of the Ovine Uterus1
TLDR
These results suggest that IRF-2 in the LE and sGE restricts IFNτ induction of ISGs to the S and GE, which likely involves formation and actions of the transcription factors ISGF3 and, perhaps, IRf-1.
Estrogen regulates transcription of the ovine oxytocin receptor gene through GC-rich SP1 promoter elements.
TLDR
The hypothesis that the antiluteolytic effects of IFNT are mediated by direct inhibition or silencing of E SR1 gene transcription, thereby precluding ESR1/SP1 from stimulating OXTR gene transcription is supported.
Regulation of Expression of Fibroblast Growth Factor 7 in the Pig Uterus by Progesterone and Estradiol1
TLDR
The results suggest that P4 is permissive to FGF7 expression by down-regulating PGR in LE, and P4 stimulates PGR-positive uterine stromal cells to release an unidentified progestamedin that induces FGF 7 expression by LE on Day 12 of pregnancy in pigs.
Progesterone and Placental Hormone Actions on the Uterus: Insights from Domestic Animals1
TLDR
The sequential, overlapping actions of progesterone, IFNτ, placental lactogen (PL), and growth hormone (GH) comprise a hormonal servomechanism that regulates endometrial gland morphogenesis and terminal differentiated function during gestation.
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