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Manipulation of MicroRNAs in Cultured Mouse Embryos: Applications for Developmental Toxicology

Fuqiang Yuan1,2, Shao-Yu Chen3,4

  • 1Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY, USA.

Methods in Molecular Biology (Clifton, N.J.)
|June 14, 2018
PubMed

Insights

MicroRNAs (miRNAs) regulate gene expression and are linked to birth defects. This study details a method using whole embryo culture and microinjection to investigate miRNA roles in teratogenesis.

Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression.
  • miRNA dysregulation is associated with diseases, including teratogenesis (birth defects).
  • Understanding miRNA function in development is crucial for identifying causes of birth defects.

Purpose of the Study:

  • To describe a method for investigating and manipulating miRNA function in developing mouse embryos.
  • To provide protocols for whole embryo culture and microinjection of miRNA modulators.
  • To assess miRNA's role in teratogenesis and teratogen-induced apoptosis.

Main Methods:

  • Whole embryo culture (WEC) system for mouse embryos.
  • Microinjection of miRNA mimics or inhibitors into embryos.
  • Validation of miRNA modulation efficacy and assessment of apoptosis.

Main Results:

  • Established a robust platform for studying miRNA function in embryonic development.
  • Demonstrated successful manipulation of miRNA levels in cultured embryos.
  • Provided a framework for assessing the impact of miRNA dysregulation on teratogenesis.

Conclusions:

  • The described approach enables mechanistic studies of miRNA roles in teratogenesis.
  • This method facilitates the investigation of specific miRNAs in embryonic development and disease.
  • The platform aids in understanding how altered miRNA expression contributes to birth defects.
Keywords:
ApoptosisMicroinjectionTeratogenesisWhole embryo culturemicroRNA

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