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Large-scale Zebrafish Embryonic Heart Dissection for Transcriptional Analysis
Published on: January 12, 2015
Expression profiling identifies novel Hh/Gli-regulated genes in developing zebrafish embryos.
Sadie A Bergeron1, Luis A Milla, Rosario Villegas
1Department of Biology, University of Massachusetts, Amherst, MA 01003-9297, USA.
Genomics
|December 7, 2007
Summary
The Hedgehog (Hh) signaling pathway is crucial for embryonic development. This study identifies new Hh-regulated genes in zebrafish, offering insights into developmental processes and potential cancer targets.
Area of Science:
- Developmental Biology
- Genetics
- Molecular Biology
Background:
- The Hedgehog (Hh) signaling pathway is essential for embryonic development.
- Dysregulation of Hh/Gli signaling is implicated in congenital disorders and cancers.
- Zebrafish serve as a valuable genetic model for studying Hh signaling due to numerous identified mutants.
Purpose of the Study:
- To identify novel Hh-regulated genes during zebrafish embryogenesis.
- To understand the role of Hh signaling in tissue-specific gene expression and embryological processes.
- To uncover potential targets of Hh/Gli misregulation in tumorigenesis.
Main Methods:
- Global gene expression profiling in zebrafish embryos with altered Hh/Gli signaling (gain- and loss-of-function).
- Analysis of differential gene expression patterns.
- Identification of known and novel Hh-regulated genes.
Main Results:
- Identified known (e.g., ptc1, nkx2.2a) and novel genes regulated by Hh/Gli signaling.
- Revealed tissue-specific gene expression changes influenced by Hh signaling.
- Provided a comprehensive survey of Hh/Gli-regulated genes in embryogenesis.
Conclusions:
- Hh/Gli signaling influences a wide range of embryological processes.
- New Hh-regulated genes were identified as potential targets in cancer development.
- This study enhances our understanding of Hh signaling in development and disease.
