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Cell cycle-related genes p57kip2, Cdk5 and Spin in the pathogenesis of neural tube defects
Xinjun Li1, Zhong Yang2, Yi Zeng3
1Department of Neurosurgery, Deyang People's Hospital, Deyang 618000, Sichuan Province, China.
Abstract:
In the field of developmental neurobiology, accurate and ordered regulation of the cell cycle and apoptosis are crucial factors contributing to the normal formation of the neural tube. Preliminary studies identified several genes involved in the development of neural tube defects. In this study, we established a model of developmental neural tube defects by administration of retinoic acid to pregnant rats. Gene chip hybridization analysis showed that genes related to the cell cycle and apoptosis, signal transduction, transcription and translation regulation, energy and metabolism, heat shock, and matrix and cytoskeletal proteins were all involved in the formation of developmental neural tube defects. Among these, cell cycle-related genes were predominant. Retinoic acid ment caused differential expression of three cell cycle-related genes p57kip2, Cdk5 and Spin, the expression levels of which were downregulated by retinoic acid and upregulated during normal neural tube formation. The results of this study indicate that cell cycle-related genes play an important role in the formation of neural tube defects. P57kip2, Cdk5 and Spin may be critical genes in the pathogenesis of neural tube defects.
Insights
Neural tube defects in developing embryos are linked to cell cycle regulation. Retinoic acid exposure disrupts key cell cycle genes, impacting neural tube formation and potentially causing defects.
Area of Science:
- Developmental Neurobiology
- Molecular Biology
Background:
- Normal neural tube formation relies on precise cell cycle and apoptosis regulation.
- Previous research has implicated several genes in neural tube defects (NTDs).
Purpose of the Study:
- To investigate the role of cell cycle and apoptosis-related genes in developmental neural tube defects.
- To identify specific genes affected by retinoic acid during neural tube development.
Main Methods:
- A rat model of developmental neural tube defects was created using retinoic acid administration.
- Gene chip hybridization was employed to analyze gene expression profiles.
Main Results:
- Gene expression analysis revealed involvement of genes in cell cycle, apoptosis, signal transduction, and metabolism.
- Cell cycle-related genes were predominant among the differentially expressed genes.
- Retinoic acid downregulated p57kip2, Cdk5, and Spin, while these genes are upregulated during normal neural tube formation.
Conclusions:
- Cell cycle regulation is critical for preventing neural tube defects.
- The genes p57kip2, Cdk5, and Spin are identified as potentially critical in the pathogenesis of neural tube defects.
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