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Updated: May 23, 2026
Chromatin Immunoprecipitation Assay for Tissue-specific Genes using Early-stage Mouse Embryos
Published on: April 29, 2011
Chromatin immunoprecipitation-promoter microarray identification of genes regulated by PRDM16 in murine embryonic
Dennis R Warner1, Partha Mukhopadhyay, Cindy L Webb
1Department of Molecular, Cellular, and Craniofacial Biology, University of Louisville Birth Defects Center, University of Louisville, Louisville, KY 40292, USA.
Insights
The transcription factor PRDM16 is crucial for palate development. Gene knockout of Prdm16 in mice results in cleft palates, indicating its role in embryonic mesenchymal cell differentiation.
Area of Science:
- Developmental Biology
- Genetics
- Cell Biology
Background:
- The transcription factor PRDM16 is known to regulate brown adipocyte differentiation.
- Genetic knockout of Prdm16 in mice has been linked to cleft secondary palate in offspring.
Purpose of the Study:
- To identify genes regulated by PRDM16 in mouse embryonic palate/maxillary mesenchymal cells.
- To understand the role of PRDM16 in embryonic palate development.
Main Methods:
- Chromatin immunoprecipitation-promoter microarray analysis (ChIP-Chip) was employed.
- Mouse embryonic palate/maxillary mesenchymal cells were used.
Main Results:
- PRDM16 was found to bind to 122 gene promoters.
- These genes are involved in muscle development, chondrogenesis, osteogenesis, and include other transcription factors.
- PRDM16 binding suggests a role in mesenchymal cell differentiation within the embryonic secondary palate.
Conclusions:
- PRDM16 plays a significant role in the differentiation of mesenchymal cells in the embryonic secondary palate.
- These cells contribute to the formation of both the anterior bony palate and the posterior muscular palate.
- PRDM16's function extends beyond brown adipogenesis to craniofacial development.
Abstract:
The transcription factor PRDM16 regulates differentiation of brown adipocyte tissue in mice. Recently, however, it has been demonstrated that genetic knockout of Prdm16 in mice leads to a complete cleft of the secondary palate in offspring. To identify genes whose promoters bind PRDM16 in mouse embryonic palate/maxillary mesenchymal cells, we have conducted a chromatin immunoprecipitation-promoter microarray analysis (ChIP-Chip). One hundred and twenty-two gene promoters were identified as capable of binding PRDM16. These could be functionally grouped to include those on genes linked to muscle development, chondrogenesis and osteogenesis, in addition to many transcription factors. These results suggest that PRDM16 may play a role in differentiation of mesenchymal cells in the embryonic secondary palate that contribute to the anterior, bony palate and posterior, muscular palate.
