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hnRNPL expression dynamics in the embryo and placenta.

Vineetha Mathew1, Ariel Mei1, Hamida Giwa1

  • 1Mother Infant Research Institute, Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA.

Gene Expression Patterns : GEP
|May 6, 2023
PubMed
Summary
This summary is machine-generated.

Heterogeneous nuclear ribonucleoprotein L (hnRNPL) is crucial for early embryonic development. Its expression and location change during mammalian embryo and placenta development, indicating a role in developmental pathways.

Keywords:
Heterogeneous nuclear proteinsPosttranscriptional regulationPreimplantationSplicing factorsTrophectodermTrophoblastshnRNPL

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Heterogeneous nuclear ribonucleoprotein L (hnRNPL) is a vital RNA binding protein (RBP).
  • hnRNPL regulates alternative splicing, influencing protein isoform generation.
  • Global hnRNPL deficiency in mice causes embryonic lethality by embryonic day 3.5.

Purpose of the Study:

  • To investigate the role of hnRNPL in mammalian embryo and placenta development.
  • To determine hnRNPL expression profiles and subcellular localization during development.
  • To understand hnRNPL's contribution to developmental pathways.

Main Methods:

  • Proteome and Western blot analyses to quantify hnRNPL abundance (E3.5-E17.5).
  • Histological analyses to examine hnRNPL localization in embryo and placenta.
  • In vitro studies using human trophoblast cell lines (Htr8, Jeg3).

Main Results:

  • hnRNPL shows distinct localization patterns in the developing embryo and placenta.
  • Nuclear hnRNPL is widespread in mouse placental trophoblasts.
  • hnRNPL is present in first-trimester human cytotrophoblasts, suggesting a role in progenitor cells.

Conclusions:

  • hnRNPL expression and localization are coordinated during mammalian embryo and placenta development.
  • Findings suggest hnRNPL is important for trophoblast progenitor development.
  • hnRNPL plays a significant role in the normal developmental program of mammalian embryos and placentas.