Possible drugs for Huntington’s disease from Capsicum annuum developed using molecular docking against Huntington protein

Julia Annie Cherian

Abstract


Objective: To evaluate the efficacy of Capsicum annuum as a suitable plant for the treatment of Huntington’s disease using Pyrx. Huntington’s disease results in the damage of the nervous system over a period of time. For this study, we take into consideration Capsaicin, a compound obtained from the fruit of Capsicum annuum (bell pepper) responsible for giving the fruit it’s pungent odor. Studies show that Capsaicin plays a crucial role in the treatment of neurodegenerative diseases like Huntington’s disease by preventing neuronal death. Due to these neuroprotective effects of Capsaicin, this study proposes that other compounds obtained from Capsicum annuum could also display neuroprotective effects and can be evaluated on their ability to treat Huntingtons disease by docking with the mutant Huntington protein.

Methods: Indian Medicinal Plants, Phytochemistry and Therapeutics database was utilized for screening compounds of Capsicum annuum. The mutant Huntington protein was obtained from the National Center of Biological Information and modeled using Swiss model. The selected phytocompounds were screened on Swiss ADME for their Absorption, Digestion, Metabolism and Excretion properties. Pyrx and BIOVIA were then used for molecular docking which simulates the binding of the ligands to the target protein and producing a binding affinity score. Ligands with a higher binding affinity can bind more strongly to the protein and inhibit it’s effect making them suitable treatments.

Results: Certain compounds of Capsicum annuum could bind effectively with the mutant Huntington protein such as Pentyl butyrate and Isobutyl 2-methylbutyrate whereas other compounds that were screened for docking properties did not bind well with the target protein and are not selected for further screening.

Conclusion: Pentyl butyrate can be screened for it’s ability to treat the disease in vivo. Animal testing and clinical trials will prove it’s capability to effectively treat the disease in humans without causing any harmful side effects.


Keywords


Capsicum annuum, Huntington’s disease, ADME analysis, molecular docking, homology modeling

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DOI: https://doi.org/10.37628/ijaba.v9i2.874

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