Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12610
Title: A novel diterpene agent isolated from Microbispora hainanensis strain CSR-4 and its in vitro and in silico inhibition effects on acetylcholine esterase enzyme
Authors: Thawai C.
Bunbamrung N.
Pittayakhajonwut P.
Chongruchiroj S.
Pratuangdejkul J.
He Y.-W.
Tadtong S.
Sareedenchai V.
Prombutara P.
Qian Y.
Keywords: acetylcholinesterase
antioxidant
cholinesterase inhibitor
diterpenoid
neuroprotective agent
recombinant protein
RNA 16S
Actinobacteria
animal
chemical structure
chemistry
Chlorocebus aethiops
classification
computer simulation
drug effect
enzyme active site
genetics
human
in vitro study
isolation and purification
molecular dynamics
mouse
phylogeny
Vero cell line
Acetylcholinesterase
Actinobacteria
Animals
Antioxidants
Catalytic Domain
Chlorocebus aethiops
Cholinesterase Inhibitors
Computer Simulation
Diterpenes
Humans
In Vitro Techniques
Mice
Molecular Dynamics Simulation
Molecular Structure
Neuroprotective Agents
Phylogeny
Recombinant Proteins
RNA, Ribosomal, 16S
Vero Cells
Issue Date: 2020
Abstract: An actinomycete strain CSR-4 was isolated from the rhizosphere soil of Zingiber montanum. Taxonomic characterization revealed strain CSR-4 was a member of the genus Microbispora. Whole-genome sequence analysis exhibited the highest average nucleotide identity (ANI) value (95.34%) and digital DNA–DNA hybridization (DDH) value (74.7%) between strain CSR-4 and the closest relative M. hainanensis DSM 45428T, which was in line with the assignment to same species. In addition, a new diterpene compound, 2α-hydroxy-8(14), 15-pimaradien-17, 18-dioic acid, and nine known compounds were isolated from the ethyl acetate crude extract of fermentation broth. Interestingly, a new diterpene displayed the suppressive effect on the recombinant human acetylcholinesterase (rhAChE) enzymes (IC50 96.87 ± 2.31 μg/ml). In silico studies based on molecular docking and molecular dynamics (MD) simulations were performed to predict a binding mode of the new compound into the binding pocket of the rhAChE enzyme and revealed that some amino acids in the peripheral anions site (PAS), anionic subsite, oxyanion site and catalytic active site (CAS) of the rhAChE have interacted with the compound. Therefore, our new compound could be proposed as a potential active human AChE inhibitor. Moreover, the new compound can protect significantly the neuron cells (% neuron viability = 88.56 ± 5.19%) from oxidative stress induced by serum deprivation method at 1 ng/ml without both neurotoxicities on murine P19-derived neuron cells and cytotoxicity against Vero cells. © 2020, The Author(s).
URI: https://ir.swu.ac.th/jspui/handle/123456789/12610
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85087518686&doi=10.1038%2fs41598-020-68009-y&partnerID=40&md5=6b2d9671281b242e6fcdccdd32cb66ec
ISSN: 20452322
Appears in Collections:Scopus 1983-2021

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