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Related Experiment Videos

Antisense c-myc effects on preimplantation mouse embryo development.

B C Paria1, S K Dey, G K Andrews

  • 1Department of Obstetrics-Gynecology, Ralph L. Smith Research Center, University of Kansas Medical Center, Kansas City 66103.

Proceedings of the National Academy of Sciences of the United States of America
|November 1, 1992
PubMed
Summary

Antisense DNA targeting c-myc gene expression inhibits early mouse embryo development. This approach reveals c-myc

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Early mammalian embryo development involves complex gene regulation.
  • The c-myc protooncogene is implicated in cellular growth and differentiation.
  • Understanding gene function during preimplantation stages is crucial.

Purpose of the Study:

  • To investigate the role of c-myc in preimplantation mouse embryo development.
  • To explore the efficacy of antisense DNA technology in studying gene function during embryogenesis.

Main Methods:

  • Detection of c-myc mRNA and protein in mouse embryos.
  • In vitro culture of two-cell mouse embryos with various c-myc oligodeoxyribonucleotides (oligos).
  • Assessment of developmental progression and gene/protein expression.

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Main Results:

  • Antisense c-myc oligos caused dose-dependent developmental arrest at the eight-cell/morula stage.
  • Modified antisense oligos were effective at lower, non-embryotoxic concentrations.
  • Specific reduction of c-myc protein was observed without affecting other markers.

Conclusions:

  • c-myc function is critical for mouse embryo development at the eight-cell/morula stage.
  • Antisense DNA is a viable tool for elucidating gene roles in early mammalian development.