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Performing Vaginal Lavage, Crystal Violet Staining, and Vaginal Cytological Evaluation for Mouse Estrous Cycle Staging Identification
Published on: September 15, 2012
Changes in mouse uterine transcriptome in estrus and proestrus.
Kerri Stanley Yip1, Alexander Suvorov, Jeannette Connerney
1Division of Cell and Molecular Biology, Department of Biology, Boston University, Boston, MA 02215, USA.
Biology of Reproduction
|June 7, 2013
Summary
The mouse uterus undergoes significant gene expression changes during the estrus cycle, impacting approximately 10% of genes. These uterine remodeling dynamics offer insights into reproductive health and disease.
Area of Science:
- Reproductive Biology
- Genomics
- Molecular Endocrinology
Background:
- The estrus cycle involves dynamic uterine tissue remodeling crucial for potential pregnancy.
- Understanding these changes is key to investigating reproductive health and disease.
Purpose of the Study:
- To investigate changes in the CD-1 mouse uterine transcriptome during proestrus and estrus.
- To elucidate mechanisms of uterine remodeling and hormonal regulation in preparation for pregnancy.
Main Methods:
- Microarray analysis of whole uterine horn RNA from mice staged at 6 weeks.
- Monitoring of two estrus cycles before tissue harvesting.
- Independent analysis of isolated uterine lumenal epithelial cells.
Main Results:
- 2428 genes were differentially expressed between estrus and proestrus, affecting ~10% of protein-encoding genes.
- Gene expression changes involved extracellular matrix remodeling, cell adhesion, mitosis, MHCII presentation, and metabolic pathways.
- Similar pathways were altered in the human menstrual cycle, suggesting conserved biological functions.
Conclusions:
- Extensive uterine remodeling occurs during the mouse estrus cycle, involving diverse molecular pathways.
- These findings provide a baseline for studying endocrine disruptors and reproductive diseases in a mouse model.
- The study highlights conserved molecular changes between mouse and human reproductive cycles.
