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Supercomputer simulation of the covalent inhibition of the main protease of SARS-CoV-2. Russ Chem Bull 2022; 70:2084-2089. [PMID: 35068913 PMCID: PMC8761045 DOI: 10.1007/s11172-021-3319-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/30/2022]
Abstract
Molecular modeling tools were applied to design a potential covalent inhibitor of the main protease (Mpro) of the SARS-CoV-2 virus and to investigate its interaction with the enzyme. The compound includes a benzoisothiazolone (BZT) moiety of antimalarial drugs and a 5-fluoro-6-nitropyrimidine-2,4(1.H,3H)-dione (FNP) moiety mimicking motifs of inhibitors of other cysteine proteases. The BZT moiety provides a fair binding of the ligand on the protein surface, whereas the warhead FNP is responsible for efficient nucleophilic aromatic substitution reaction with the catalytic cysteine residue in the Mpro active site, leading to a stable covalent adduct. According to supercomputer calculations of the reaction energy profile using the quantum mechanics/molecular mechanics method, the energy of the covalent adduct is 21 kcal mol−1 below the energy of the reactants, while the highest barrier along the reaction pathway is 9 kcal mol−1. These estimates indicate that the reaction can proceed efficiently and can block the Mpro enzyme. The computed structures along the reaction path illustrate the nucleophilic aromatic substitution (SNAr) mechanism in enzymes. The results of this study are important for the choice of potential drugs blocking the development of coronavirus infection.
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Makhaeva GF, Lushchekina SV, Boltneva NP, Serebryakova OG, Kovaleva NV, Rudakova EV, Elkina NA, Shchegolkov EV, Burgart YV, Stupina TS, Terentiev AA, Radchenko EV, Palyulin VA, Saloutin VI, Bachurin SO, Richardson RJ. Novel potent bifunctional carboxylesterase inhibitors based on a polyfluoroalkyl-2-imino-1,3-dione scaffold. Eur J Med Chem 2021; 218:113385. [PMID: 33831780 DOI: 10.1016/j.ejmech.2021.113385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 01/04/2023]
Abstract
An expanded series of alkyl 2-arylhydrazinylidene-3-oxo-3-polyfluoroalkylpropionates (HOPs) 3 was obtained via Cu(OAc)2-catalyzed azo coupling. All were nanomolar inhibitors of carboxylesterase (CES), while moderate or weak inhibitors of acetylcholinesterase and butyrylcholinesterase. Steady-state kinetics studies showed that HOPs 3 are mixed type inhibitors of the three esterases. Molecular docking studies demonstrated that two functional groups in the structure of HOPs, trifluoromethyl ketone (TFK) and ester groups, bind to the CES active site suggesting subsequent reactions: formation of a tetrahedral adduct, and a slow hydrolysis reaction. The results of molecular modeling allowed us to explain some structure-activity relationships of CES inhibition by HOPs 3: their selectivity toward CES in comparison with cholinesterases and the high selectivity of pentafluoroethyl-substituted HOP 3p to hCES1 compared to hCES2. All compounds were predicted to have good intestinal absorption and blood-brain barrier permeability, low cardiac toxicity, good lipophilicity and aqueous solubility, and reasonable overall drug-likeness. HOPs with a TFK group and electron-donor substituents in the arylhydrazone moiety were potent antioxidants. All compounds possessed low cytotoxicity and low acute toxicity. Overall, a new promising type of bifunctional CES inhibitors has been found that are able to interact with the active site of the enzyme with the participation of two functional groups. The results indicate that HOPs have the potential to be good candidates as human CES inhibitors for biomedicinal applications.
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Affiliation(s)
- Galina F Makhaeva
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Sofya V Lushchekina
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia; Emanuel Institute of Biochemical Physics Russian Academy of Sciences, Moscow, 119334, Russia
| | - Natalia P Boltneva
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Olga G Serebryakova
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Nadezhda V Kovaleva
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Elena V Rudakova
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Natalia A Elkina
- Postovsky Institute of Organic Synthesis, Urals Branch of Russian Academy of Sciences, Ekaterinburg, 620990, Russia
| | - Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis, Urals Branch of Russian Academy of Sciences, Ekaterinburg, 620990, Russia
| | - Yanina V Burgart
- Postovsky Institute of Organic Synthesis, Urals Branch of Russian Academy of Sciences, Ekaterinburg, 620990, Russia
| | - Tatyana S Stupina
- Institute of Problems of Chemical Physics Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Alexey A Terentiev
- Institute of Problems of Chemical Physics Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Eugene V Radchenko
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia; Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Vladimir A Palyulin
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia; Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis, Urals Branch of Russian Academy of Sciences, Ekaterinburg, 620990, Russia
| | - Sergey O Bachurin
- Institute of Physiologically Active Compounds Russian Academy of Sciences, Chernogolovka, 142432, Russia
| | - Rudy J Richardson
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA; Center of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA.
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Burilova EA, Pashirova TN, Zueva IV, Gibadullina EM, Lushchekina SV, Sapunova AS, Kayumova RM, Rogov AM, Evtjugin VG, Sudakov IA, Vyshtakalyuk AB, Voloshina AD, Bukharov SV, Burilov AR, Petrov KA, Zakharova LY, Sinyashin OG. Bi-functional sterically hindered phenol lipid-based delivery systems as potential multi-target agents against Alzheimer's disease via an intranasal route. NANOSCALE 2020; 12:13757-13770. [PMID: 32573587 DOI: 10.1039/d0nr04037a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
New lipid-based nanomaterials and multi-target directed ligands (MTDLs) based on sterically hindered phenol, containing a quaternary ammonium moiety (SHP-s-R, with s = 2,3) of varying hydrophobicity (R = CH2Ph and CnH2n+1, with n = 8, 10, 12, 16), have been prepared as potential drugs against Alzheimer's disease (AD). SHP-s-R are inhibitors of human cholinesterases with antioxidant properties. The inhibitory potency of SHP-s-R and selectivity ratio of cholinesterase inhibition were found to significantly depend on the length of the methylene spacer (s) and alkyl chain length. The compound SHP-2-16 showed the best IC50 for human AChE and the highest selectivity, being 30-fold more potent than for human BChE. Molecular modeling of SHP-2-16 binding to human AChE suggests that this compound is a dual binding site inhibitor that interacts with both the peripheral anionic site and catalytic active site. The relationship between self-assembly parameters (CMC, solubilization capacity, aggregation number), antioxidant activity and a toxicological parameter (hemolytic action on human red blood cells) was investigated. Two sterically hindered phenols (SHP-2-Bn and SHP-2-R) were loaded into L-α-phosphatidylcholine (PC) nanoparticles by varying the SHP alkyl chain length. For the brain AChE inhibition assay, PC/SHP-2-Bn/SHP-2-16 nanoparticles were administered to rats intranasally at a dose of 8 mg kg-1. The Morris water maze experiment showed that scopolamine-induced AD-like dementia in rats treated with PC/SHP-2-Bn/SHP-2-16 nanoparticles was significantly reduced. This is the first example of cationic SHP-phospholipid nanoparticles for inhibition of brain cholinesterases realized by the use of intranasal administration. This route has promising potential for the treatment of AD.
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Affiliation(s)
- Evgenia A Burilova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation.
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Abdel-Moety EM, Abou Al-Alamein AM, Fawaz E, Abd El-Rahman MK. A Companion Diagnostic for Personalizing Mivacurium at the Point-of-Care. JOURNAL OF THE ELECTROCHEMICAL SOCIETY 2020; 167:087510. [DOI: 10.1149/1945-7111/ab927e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Makhaeva GF, Rudakova EV, Kovaleva NV, Lushchekina SV, Boltneva NP, Proshin AN, Shchegolkov EV, Burgart YV, Saloutin VI. Cholinesterase and carboxylesterase inhibitors as pharmacological agents. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2507-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Varfolomeev SD, Kots ED, Khrenova MG, Lushchekina SV, Nemukhin AV. Supercomputer technologies for structural-kinetic study of mechanisms of enzyme catalysis: A quantum-chemical description of aspartoacylase catalysis. DOKLADY PHYSICAL CHEMISTRY 2017. [DOI: 10.1134/s0012501617060045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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