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Sun Y, Hou T, He X, Man VH, Wang J. Development and test of highly accurate endpoint free energy methods. 2: Prediction of logarithm of n-octanol-water partition coefficient (logP) for druglike molecules using MM-PBSA method. J Comput Chem 2023; 44:1300-1311. [PMID: 36820817 PMCID: PMC10101867 DOI: 10.1002/jcc.27086] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/16/2022] [Accepted: 01/29/2023] [Indexed: 02/24/2023]
Abstract
The logarithm of n-octanol-water partition coefficient (logP) is frequently used as an indicator of lipophilicity in drug discovery, which has substantial impacts on the absorption, distribution, metabolism, excretion, and toxicity of a drug candidate. Considering that the experimental measurement of the property is costly and time-consuming, it is of great importance to develop reliable prediction models for logP. In this study, we developed a transfer free energy-based logP prediction model-FElogP. FElogP is based on the simple principle that logP is determined by the free energy change of transferring a molecule from water to n-octanol. The underlying physical method to calculate transfer free energy is the molecular mechanics-Poisson Boltzmann surface area (MM-PBSA), thus this method is named as free energy-based logP (FElogP). The superiority of FElogP model was validated by a large set of 707 structurally diverse molecules in the ZINC database for which the measurement was of high quality. Encouragingly, FElogP outperformed several commonly-used QSPR or machine learning-based logP models, as well as some continuum solvation model-based methods. The root-mean-square error (RMSE) and Pearson correlation coefficient (R) between the predicted and measured values are 0.91 log units and 0.71, respectively, while the runner-up, the logP model implemented in OpenBabel had an RMSE of 1.13 log units and R of 0.67. Given the fact that FElogP was not parameterized against experimental logP directly, its excellent performance is likely to be expanded to arbitrary organic molecules covered by the general AMBER force fields.
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Affiliation(s)
- Yuchen Sun
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Tingjun Hou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xibing He
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Viet Hoang Man
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Junmei Wang
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Pressly JD, Mustafa SM, Adibi AH, Alghamdi S, Pandey P, Roy KK, Doerksen RJ, Moore BM, Park F. Selective Cannabinoid 2 Receptor Stimulation Reduces Tubular Epithelial Cell Damage after Renal Ischemia-Reperfusion Injury. J Pharmacol Exp Ther 2017; 364:287-299. [PMID: 29187590 DOI: 10.1124/jpet.117.245522] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/22/2017] [Indexed: 01/27/2023] Open
Abstract
Ischemia-reperfusion injury (IRI) is a common cause of acute kidney injury (AKI), which is an increasing problem in the clinic and has been associated with elevated rates of mortality. Therapies to treat AKI are currently not available, so identification of new targets that can be modulated to ameliorate renal damage upon diagnosis of AKI is essential. In this study, a novel cannabinoid receptor 2 (CB2) agonist, SMM-295 [3'-methyl-4-(2-(thiophen-2-yl)propan-2-yl)biphenyl-2,6-diol], was designed, synthesized, and tested in vitro and in silico. Molecular docking of SMM-295 into a CB2 active-state homology model showed that SMM-295 interacts well with key amino acids to stabilize the active state. In human embryonic kidney 293 cells, SMM-295 was capable of reducing cAMP production with 66-fold selectivity for CB2 versus cannabinoid receptor 1 and dose-dependently increased mitogen-activated protein kinase and Akt phosphorylation. In vivo testing of the CB2 agonist was performed using a mouse model of bilateral IRI, which is a common model to mimic human AKI, where SMM-295 was immediately administered upon reperfusion of the kidneys after the ischemia episode. Histologic damage assessment 48 hours after reperfusion demonstrated reduced tubular damage in the presence of SMM-295. This was consistent with reduced plasma markers of renal dysfunction (i.e., creatinine and neutrophil gelatinase-associated lipocalin) in SMM-295-treated mice. Mechanistically, kidneys treated with SMM-295 were shown to have elevated activation of Akt with reduced terminal deoxynucleotidyl transferase-mediated digoxigenin-deoxyuridine nick-end labeling (TUNEL)-positive cells compared with vehicle-treated kidneys after IRI. These data suggest that selective CB2 receptor activation could be a potential therapeutic target in the treatment of AKI.
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Affiliation(s)
- Jeffrey D Pressly
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Suni M Mustafa
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Ammaar H Adibi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Sahar Alghamdi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Pankaj Pandey
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Kuldeep K Roy
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Robert J Doerksen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Bob M Moore
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
| | - Frank Park
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (J.D.P., S.M.M., A.A., S.A., B.M.M., F.P.); Division of Medicinal Chemistry, Department of Biomolecular Sciences (P.P., K.K.R., R.J.D.) and Research Institute of Pharmaceutical Sciences (R.J.D.), School of Pharmacy, University of Mississippi, University, Mississippi; and National Institute of Pharmaceutical Education and Research, Jadavpur, Kolkata, West Bengal, India (K.K.R.)
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