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Haloperidol's Effect on the Expressions of TGFB, NT-3, and BDNF genes in Cultured Rat Microglia
Elham Namjoo1, Mohammad Shekari2, Aliyar Piruozi3
1Department of Biology, Faculty of Science, Arsenjan Branch, Islamic Azad University, Fars, Iran.
Introduction:
Microglia, small glial cells, i.e. mesodermal in origin and found in the brain and spinal cord, play a key role in the maintenance of neurons and immune defense. Haloperidol, an antipsychotic drug, is used to treat numerous neurological and neurodegenerative disorders. Its mechanism is not understood; however, haloperidol may result in Wnt signaling pathway activation. This study aimed to activate the Wnt signaling pathway using haloperidol and determining the effect of GSK3 inhibition on the expression of TGFB, NT-3, and BDNF genes in cultured rat microglia.
Methods:
Microglia isolation was conducted, and the immunohistochemistry technique was performed to confirm microglia purity. The RNA extraction was followed by cDNA synthesis. Real-time RT-PCR was used to evaluate any significant changes in the expression level of these genes.
Results:
The three gene expressions in microglia were proportional to the different concentrations of the drug. More concentration of drugs resulted in higher levels of expression of these genes. Besides, the haloperidol did not affect the expression of the beta-actin gene as the reference gene.
Conclusion:
The obtained results supported the beneficial use of haloperidol in targeted microglia therapy. This study can be a breakthrough in neurology research.
Insights
Haloperidol activates Wnt signaling in microglia, increasing expression of key neurotrophic genes. This antipsychotic shows potential for targeted microglia therapy in neurological disorders.
Area of Science:
- Neuroscience
- Cell Biology
- Pharmacology
Background:
- Microglia are crucial for neuronal maintenance and immune defense in the central nervous system.
- Haloperidol, an antipsychotic, is investigated for its potential to activate the Wnt signaling pathway.
- The precise mechanisms of haloperidol's action in neurological conditions remain largely unelucidated.
Purpose of the Study:
- To investigate the effect of haloperidol on Wnt signaling pathway activation in cultured rat microglia.
- To determine the impact of GSK3 inhibition on the expression of TGFB, NT-3, and BDNF genes.
- To explore haloperidol's potential therapeutic applications in microglia-targeted therapies.
Main Methods:
- Primary microglia were isolated and purity confirmed via immunohistochemistry.
- RNA extraction and cDNA synthesis were performed.
- Real-time RT-PCR was utilized to quantify gene expression levels of TGFB, NT-3, and BDNF.
Main Results:
- Haloperidol treatment resulted in a dose-dependent increase in the expression of TGFB, NT-3, and BDNF genes.
- The antipsychotic drug did not significantly alter the expression of the beta-actin reference gene.
- These findings indicate a direct correlation between haloperidol concentration and gene expression in microglia.
Conclusions:
- The study supports the potential beneficial role of haloperidol in targeted microglia therapy.
- Haloperidol's ability to modulate Wnt signaling and neurotrophic factor expression offers a novel therapeutic avenue.
- This research may represent a significant advancement in the field of neurology and neurodegenerative disease treatment.
