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Updated: Jun 5, 2026

Combined DNA-RNA Fluorescent In situ Hybridization (FISH) to Study X Chromosome Inactivation in Differentiated Female Mouse Embryonic Stem Cells
Published on: June 14, 2014
X chromosome inactivation and embryonic stem cells
Tahsin Stefan Barakat1, Joost Gribnau
1Department of Reproduction and Development, University Medical Center, Room Ee 09-71, Erasmus MC, 3015 GE, Rotterdam, Netherlands.
X chromosome inactivation (XCI) equalizes gene dosage in females. This chapter explores XCI regulators, initiation models, and chromatin changes, using stem cells to study this essential process.
Area of Science:
- Epigenetics and Developmental Biology
- Genetics and Genomics
Background:
- X chromosome inactivation (XCI) is crucial for equalizing X-linked gene expression between sexes.
- This process occurs early in female embryonic development and stem cell differentiation.
- XCI regulation involves factors critical for stem cell maintenance and differentiation.
Purpose of the Study:
- To detail the cis and trans-acting regulators of XCI.
- To introduce models explaining the female-specific initiation of XCI.
- To discuss proteins and chromatin modifications in establishing the inactive X chromosome.
Main Methods:
- Review of existing literature on XCI mechanisms.
- Analysis of regulatory factors and their roles in XCI.
- Examination of chromatin modifications associated with X chromosome inactivation.
Main Results:
- Identification of key cis and trans-acting factors regulating XCI.
- Presentation of models for the initiation of XCI in female cells.
- Description of proteins and chromatin changes involved in X chromosome silencing.
Conclusions:
- XCI serves as a model system for studying stem cell biology.
- Mouse and human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) are valuable models for XCI research.
- Understanding XCI provides insights into gene dosage compensation and cellular differentiation.
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