Construction of a Mex3c Gene-Deficient Mouse Model to Study C-FOS Expression in Hypothalamic Nuclei and Observe...

Area of Science:

• Neuroscience
• Genetics
• Developmental Biology

Background:

• The Mex3c gene's role in energy metabolism and neural development is largely unknown.
• CRISPR/Cas9 technology enables the creation of gene-deficient models for functional studies.

Purpose of the Study:

• To investigate the function of the Mex3c gene in energy metabolism regulation.
• To examine the impact of Mex3c deficiency on C-FOS expression in the hypothalamus.
• To assess developmental effects, specifically neural tube morphology, in Mex3c-deficient mice.

Main Methods:

• CRISPR/Cas9 gene editing was used to generate Mex3c gene-deficient mice.
• Mice were treated with leptin and ghrelin to study C-FOS expression in hypothalamic nuclei via immunohistochemistry.
• Histological analyses (HE, Nissl, LFB staining) and Transmission Electron Microscopy (TEM) were employed to evaluate neural morphology and ultrastructure.

Main Results:

• C-FOS expression was significantly altered in response to leptin and ghrelin in Mex3c-deficient mice compared to controls.
• While neural tube morphology showed no significant differences at E14.5, nestin expression was lower in normal mice compared to Mex3c-deficient groups.
• Mex3c deficiency was associated with altered C-FOS expression patterns in hypothalamic nuclei.

Conclusions:

• Mex3c plays a role in regulating energy metabolism, potentially through the induction of C-FOS expression in the hypothalamus.
• Mex3c deficiency in mice leads to developmental defects in neural tube formation.
• Further research is warranted to elucidate the precise mechanisms linking Mex3c to energy homeostasis and neurodevelopment.