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Stat3 and Socs3 expression patterns during murine placenta development.

S San Martin1, J S Fitzgerald, M Weber

  • 1Biomedical Research Centre, School of Medicine, Universidad de Valparaiso, Chile. sebastian.sanmartin@uv.cl

European Journal of Histochemistry : EJH
|June 29, 2013
PubMed
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Signal transducers and activators of transcription 3 (Stat3) and Socs3 are key in mouse placental development. This study maps their in situ expression, revealing roles in trophoblast cells and maternal-fetal interactions.

Area of Science:

  • Reproductive Biology
  • Developmental Biology
  • Cell Signaling

Background:

  • Signal transducers and activators of transcription 3 (Stat3) is implicated in trophoblast cell invasion in vitro.
  • The in situ distribution of Stat3 in placental development remains unclear.

Purpose of the Study:

  • To investigate the in situ distribution and expression patterns of Stat3, its phosphorylated form (p-ser727), and Suppressor of Cytokine Signaling 3 (Socs3) during murine placental development.

Main Methods:

  • Immunoperoxidase techniques were used to detect Stat3, p-ser727, and Socs3 in mouse uteri from 7 to 14 days of pregnancy.
  • Tissue samples were analyzed for protein localization in maternal and fetal placental compartments.

Main Results:

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  • Stat3 expression was observed in decidual and placental tissues, including cytotrophoblasts and giant trophoblasts.
  • Phosphorylated Stat3 (p-ser727) showed distinct temporal and spatial patterns in decidua and placental regions.
  • Socs3 was primarily detected in giant trophoblast cells throughout the study period.

    • Conclusions:

    • This study elucidates the in situ distribution of Stat3, p-ser727, and Socs3 during mouse placental development.
    • Findings support the role of these molecules in physiological placentation and trophoblast cell function.