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Quantitative Analysis of Protein Expression to Study Lineage Specification in Mouse Preimplantation Embryos
11:25

Quantitative Analysis of Protein Expression to Study Lineage Specification in Mouse Preimplantation Embryos

Published on: February 22, 2016

Gene expression profiling in embryonic mouse lenses.

Weimin Xiao1, Wenbin Liu, Zhijun Li

  • 1College of Optometry, University of Houston, Houston, TX 77204-2020, USA. wxiao@optometry.uh.edu <wxiao@optometry.uh.edu>

Molecular Vision
|January 11, 2007
PubMed
Summary

This study compared gene expression in mouse embryonic lenses at days 10 and 12. Key pathways like cell cycle and Wnt signaling were differentially regulated, offering insights into early lens development.

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Area of Science:

  • Developmental Biology
  • Genomics
  • Molecular Biology

Background:

  • Early lens development involves complex gene regulation.
  • Understanding these molecular changes is crucial for developmental biology.

Purpose of the Study:

  • To compare gene expression profiles of mouse embryonic lenses at day 10 (E10) and day 12 (E12).
  • To identify differentially regulated genes and molecular pathways during early lens morphogenesis.

Main Methods:

  • Laser capture microdissection (LCM) was used to isolate lens cells from E10 and E12 mouse embryos.
  • Microarray hybridization technology (Affymetrix 430 2.0 mouse chip) analyzed gene expression.
  • Real-time PCR (RT-PCR) confirmed the expression of selected genes.

Main Results:

  • 1,573 genes showed a two-fold or greater change in expression between E10 and E12.
  • 956 genes were downregulated and 617 upregulated in E12 lenses.
  • Significant changes were observed in cell cycle, insulin-like growth factor (IGF), and Wnt signaling pathways, with specific modulation of Wnt pathway regulators.

Conclusions:

  • This study provides novel information on differential gene expression during early mouse lens development.
  • Global gene expression analysis identified key molecular pathways critical for lens morphogenesis.