1
|
Uzairu SM, Tijani Y, Gadaka MA, Modu B, Watafua M, Ahmad HA, Zakariya UA, Ibrahim A, Daja A, Zanna H, Sallau AB. Kinetics and computational study of butyrylcholinesterase inhibition by methylrosmarinate: relevance to Alzheimer's disease treatment. Heliyon 2022; 8:e10613. [PMID: 36148271 PMCID: PMC9485033 DOI: 10.1016/j.heliyon.2022.e10613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/24/2022] [Accepted: 09/07/2022] [Indexed: 11/18/2022] Open
Abstract
Butyrylcholinesterase (BChE) performs a significant function in Alzheimer’s disease progression. Experimental studies have shown that the function of BChE in the attenuation of cholinergic neurotransmission is essentially altered in brains of advanced AD patients. Here, using the complimentary methods of enzyme kinetic studies, molecular modeling and protein-ligand interaction profiling, we sought to reveal the mechanistic and structural features of BChE-methyrosmarinate interactions. Molecular docking simulations revealed that methylrosmarinate dwelled well in the active centre of BChE, where it got involved in stabilizing non-covalent associations with myriad subsites. Enzyme kinetic experiments showed that the Vm and Ks values were 156.20 ± 3.11 U mg−1 protein and 0.13 ± 0.01 μM, respectively. The inhibition studies showed that methylrosmarinate apparently inhibited BChE in a linear mixed manner, with an IC50 value of 10.31 μM and a Ki value of 3.73 ± 1.52 μM. Taken together, the extremely reduced Ki value and the increased number of BChE–methylrosmarinate interactions presuppose that methylrosmarinate is a good inhibitor of BChE, despite the fact that the mechanism for the effect of BChE inhibition on several pathological conditions in vivo remains unexplored.
Collapse
Affiliation(s)
- Sani Muhammad Uzairu
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
- Corresponding author.
| | - Yahaya Tijani
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | - Madu Adamu Gadaka
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | - Babagana Modu
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | - Miriam Watafua
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | - Hadiza Ali Ahmad
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | | | - Aminu Ibrahim
- Department of Biochemistry, Bayero University, Kano, P.M.B. 30ll Kano, Nigeria
| | - Aliyu Daja
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | - Hassan Zanna
- Department of Biochemistry, University of Maiduguri, P.M.B. 1069 Maiduguri, Nigeria
| | | |
Collapse
|