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Transcript profiling identifies dynamic gene expression patterns and an important role for Nrf2/Keap1 pathway in the
Hao Chen1, Jianying Li, Haiyan Li
1Cancer Research Program, JLC-BBRI, North Carolina Central University, Durham, North Carolina, United States of America.
The Nrf2/Keap1 pathway is crucial for mouse esophageal maturation, with dynamic gene expression changes observed during development. This pathway
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- Esophageal development involves complex morphological changes.
- Molecular mechanisms underlying esophageal morphogenesis are not fully understood.
- The role of the Nrf2/Keap1 pathway in esophageal development requires further investigation.
Purpose of the Study:
- To globally profile critical genes and signaling pathways during mouse esophageal development.
- To elucidate the role of the Nrf2/Keap1 pathway in esophageal epithelial morphogenesis.
- To identify molecular changes associated with esophageal maturation.
Main Methods:
- Gene expression profiling using microarrays at key developmental stages (specification, metaplasia, maturation).
- Analysis of esophageal tissues from wild-type and Nrf2/Keap1 knockout mice.
- Histochemical and immunohistochemical staining to validate signaling pathway involvement (Wnt, Pparβ/δ, PI3K/Akt).
Main Results:
- Dynamic gene expression patterns correlate with morphological changes during esophageal development.
- Nrf2/Keap1 pathway shows increased activity during esophageal maturation.
- Keap1 deficiency leads to altered keratinization and hyperkeratosis, linked to Pparβ/δ and PI3K/Akt activation.
Conclusions:
- Esophageal epithelial morphogenesis is characterized by dynamic gene expression shifts.
- Nrf2/Keap1 pathway activity is essential for the maturation of mouse esophageal epithelium.
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