Dual-Knockout of Mutant Isocitrate Dehydrogenase 1 and 2 Subtypes Towards Glioma Therapy: Structural Mechanistic Insights on the Role of Vorasidenib.

2-hydroxyglutarate Glioma Vorasidenib mIDH1/2 molecular dynamic simulation

Journal

Chemistry & biodiversity
ISSN: 1612-1880
Titre abrégé: Chem Biodivers
Pays: Switzerland
ID NLM: 101197449

Informations de publication

Date de publication:
12 May 2021
Historique:
received: 09 02 2021
accepted: 11 05 2021
pubmed: 14 5 2021
medline: 14 5 2021
entrez: 13 5 2021
Statut: aheadofprint

Résumé

Recently, Vorasidenib (AG-881) has been reported as a therapeutic alternative that exerts potent dual inhibitory activity against mIDH1/2 towards the treatment of low-grade glioma. However, structural and dynamic events associated with its dual inhibition mechanism remain unclear. As such, we employ integrative computer-assisted atomistic techniques to provide thorough structural and dynamic insights. Our analysis proved that the dual-targeting ability of AG-881 is mediated by Val255/Val294 within the binding pockets of both mIDH1 and mIDH2 which are shown to elicit a strong intermolecular interaction, thus favoring binding affinity. The structural orientations of AG-881 within the respective hydrophobic pockets allowed favorable interactions with binding site residues which accounted for its high binding free energy of -28.69 kcal/mol and -19.89 kcal/mol towards mIDH1 and mIDH2, respectively. Interestingly, upon binding, AG-881 was found to trigger systemic alterations of mIDH1 and mIDH2 characterized by restricted residue flexibility and a reduction in exposure of residues to the solvent surface area. As a result of these structural alterations, crucial interactions of the mutant enzymes were inhibited, a phenomenon that results in a suppression of the production of oncogenic stimulator 2-HG. Findings therefore provide thorough structural and dynamic insights associated with the dual inhibitory activity of AG-881 towards glioma therapy.

Identifiants

pubmed: 33982420
doi: 10.1002/cbdv.202100110
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : School of Health Science
Organisme : University of KwaZulu-Natal
Organisme : Westville campus

Informations de copyright

© 2021 Wiley-VHCA AG, Zurich, Switzerland.

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Auteurs

Preantha Poonan (P)

Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa.

Clement Agoni (C)

Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa.

Mahmoud E S Soliman (MES)

Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa.

Classifications MeSH