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Behavioral and Gene Expression Analysis of Stxbp6-Knockout Mice
Cong Liu1, Qian Hu1, Yan Chen1
1Center for Medical Genetics, School of Life Sciences, Central South University, Changsha 410008, China.
Brain Sciences
|April 3, 2021
Summary
Stxbp6 knockout mice show normal behavior but reduced weight gain. Gene expression analysis revealed significant changes in the cerebral cortex, implicating complement and coagulation pathways in Stxbp6 function.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Stxbp6, a brain-enriched protein, is known to regulate SNARE complex assembly.
- Its precise functions in the nervous system remain largely uncharacterized over the past two decades.
Purpose of the Study:
- To investigate the effects of Stxbp6 deficiency on nervous system phenotypes.
- To elucidate the underlying molecular mechanisms of Stxbp6 function at the organism level.
Main Methods:
- Generation of a global Stxbp6-knockout mouse model.
- Phenotypic analysis including behavior and weight gain assessment.
- RNA-sequencing (RNA-seq) of the cerebral cortex and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis.
Main Results:
- Stxbp6-null mice exhibited normal survival and behavior but significantly reduced weight gain compared to wildtype controls.
- RNA-seq identified 126 differentially expressed genes in the cerebral cortex of knockout mice (57 upregulated, 69 downregulated).
- KEGG analysis highlighted "complement and coagulation cascades" as the most significantly enriched pathway.
Conclusions:
- Stxbp6 plays a role in regulating weight gain in mice.
- The study suggests potential regulatory roles for Stxbp6 within the central nervous system, particularly involving complement and coagulation pathways.
- This research provides a valuable resource for further investigation into Stxbp6 function.
