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Kim D, Choi SW, Cho J, Been JH, Choi K, Jiang W, Han J, Oh J, Park C, Choi S, Seo S, Kim KL, Suh W, Lee SK, Kim S. Discovery of Novel Small-Molecule Antiangiogenesis Agents to Treat Diabetic Retinopathy. J Med Chem 2021; 64:5535-5550. [PMID: 33902285 DOI: 10.1021/acs.jmedchem.0c01965] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diabetic retinopathy is the leading cause of blindness which is associated with excessive angiogenesis. Using the structure of wondonin marine natural products, we previously created a scaffold to develop a novel type of antiangiogenesis agent that possesses minimized cytotoxicity. To overcome its poor pharmaceutical properties, we further modified the structure. A new scaffold was derived in which the stereogenic carbon was changed to nitrogen and the 1,2,3-triazole ring was replaced by an alkyl chain. By comparing the bioactivity versus cytotoxicity, compound 31 was selected, which has improved aqueous solubility and an enhanced selectivity index. Mechanistically, 31 suppressed angiopoietin-2 (ANGPT2) expression induced by high glucose in retinal cells and exhibited in vivo antiangiogenic activity in choroidal neovascularization and oxygen-induced retinopathy mouse models. These results suggest the potential of 31 as a lead to develop antiangiogenic small-molecule drugs to treat diabetic retinopathy and as a chemical tool to elucidate new mechanisms of angiogenesis.
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Affiliation(s)
- Donghwa Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Sang Won Choi
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jihee Cho
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jae-Hui Been
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Kyoungsun Choi
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Wenzhe Jiang
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jaeho Han
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jedo Oh
- Hana Pharmaceutical Co., Pangyo 13486, Korea
| | | | | | - Songyi Seo
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Koung Li Kim
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Wonhee Suh
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Sang Kook Lee
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
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Llinas A, Oprisiu I, Avdeef A. Findings of the Second Challenge to Predict Aqueous Solubility. J Chem Inf Model 2020; 60:4791-4803. [DOI: 10.1021/acs.jcim.0c00701] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Antonio Llinas
- DMPK, Research and Early Development, Respiratory & Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg SE 431 50, Sweden
| | - Ioana Oprisiu
- Data Science & Artificial Intelligence, Imaging & Data Analytics, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Gothenburg SE 431 50, Sweden
| | - Alex Avdeef
- in-ADME Research, 1732 First Avenue, #102, New York, New York 10128, United States
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Etherson K, Dunn C, Matthews W, Pamelund H, Barragat C, Sanderson N, Izumi T, Mathews CDC, Halbert G, Wilson C, McAllister M, Mann J, Østergaard J, Butler J, Khadra I. An interlaboratory investigation of intrinsic dissolution rate determination using surface dissolution. Eur J Pharm Biopharm 2020; 150:24-32. [PMID: 32061919 DOI: 10.1016/j.ejpb.2020.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 01/20/2020] [Accepted: 02/11/2020] [Indexed: 12/17/2022]
Abstract
The purpose of this study was to conduct an interlaboratory ring-study, with six partners (academic and industrial), investigating the measurement of intrinsic dissolution rate (IDR) using surface dissolution imaging (SDI) equipment. Measurement of IDR is important in pharmaceutical research as it provides characterising information on drugs and their formulations. This work allowed us to assess the SDI's interlaboratory performance for measuring IDR using a defined standard operating procedure (see supporting information) and six drugs assigned as low (tadalafil, bromocriptine mesylate), medium (carvedilol, indomethacin) and high (ibuprofen, valsartan) solubility compounds. Fasted State Simulated Intestinal Fluid (FaSSIF) and blank FaSSIF (without sodium taurocholate and lecithin) (pH 6.5) were used as media. Using the standardised protocol an IDR value was obtained for all compounds and the results show that the overall IDR rank order matched the solubility rank order. Interlaboratory variability was also examined and it was observed that the variability for lower solubility compounds was higher, coefficient of variation >50%, than for intermediate and high solubility compounds, with the exception of indomethacin in FaSSIF medium. Inter laboratory variability is a useful descriptor for understanding the robustness of the protocol and the system variability. On comparison to another published small-scale IDR study the rank ordering with respect to dissolution rate is identical except for the high solubility compounds. This results indicates that the SDI robustly measures IDR however, no recommendation on the use of one small scale method over the other is made.
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Affiliation(s)
- Kelly Etherson
- Product Development & Supply, GlaxoSmithKline R&D, Ware, UK
| | - Claire Dunn
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Wayne Matthews
- Product Development & Supply, GlaxoSmithKline R&D, Stevenage, UK
| | - Henrik Pamelund
- Product Development & Supply, GlaxoSmithKline R&D, Stevenage, UK; Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Camille Barragat
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Natalie Sanderson
- Pharmaceutical Technology & Development, AstraZeneca, Macclesfield, UK
| | - Toshiko Izumi
- Drug Product Design, Pharmaceutical Sciences, Pfizer Ltd., Sandwich, UK
| | | | - Gavin Halbert
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Clive Wilson
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Mark McAllister
- Drug Product Design, Pharmaceutical Sciences, Pfizer Ltd., Sandwich, UK
| | - James Mann
- Pharmaceutical Technology & Development, AstraZeneca, Macclesfield, UK
| | - Jesper Østergaard
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - James Butler
- Product Development & Supply, GlaxoSmithKline R&D, Ware, UK
| | - Ibrahim Khadra
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK.
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Sou T, Bergström CAS. Automated assays for thermodynamic (equilibrium) solubility determination. DRUG DISCOVERY TODAY. TECHNOLOGIES 2018; 27:11-19. [PMID: 30103859 DOI: 10.1016/j.ddtec.2018.04.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Solubility is a crucial physicochemical property for drug candidates and is important in both drug discovery and development. Poor solubility is detrimental to absorption after oral administration and can mask compound activity in bioassays in various ways. Hence, solubility liabilities should ideally be identified as early as possible in the drug development process. With the increasing number of compounds as potential drug candidates, automated thermodynamic solubility assays for high throughput screening enabling rapid evaluation of a large number of compounds are becoming increasingly important. This review discusses the current status of the most widely used automated assays for thermodynamic solubility, followed by recent high throughput measurements of properties related to solubility (e.g. dissolution rate and supersaturation) and a brief overview of predictive computational methods for thermodynamic solubility reported in the literature.
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Affiliation(s)
- Tomás Sou
- Department of Pharmacy, Uppsala University, BMC P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, BMC P.O. Box 580, SE-751 23 Uppsala, Sweden.
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Etherson K, Halbert G, Elliott M. The influence of non-ionisable excipients on precipitation parameters measured using the CheqSol method. J Pharm Pharmacol 2016; 68:1131-42. [PMID: 27367258 DOI: 10.1111/jphp.12602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/10/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The aim of this study was to determine the influence of non-ionisable excipients hydroxypropyl-β-cyclodextrin (HPβCD) and poloxamers 407 and 188 on the supersaturation and precipitation kinetics of ibuprofen, gliclazide, propranolol and atenolol induced through solution pH shifts using the CheqSol method. METHODS The drug's kinetic and intrinsic aqueous solubilities were measured in the presence of increasing excipient concentrations using the CheqSol method. Experimental data rate of change of pH with time was also examined to determine excipient-induced parachute effects and influence on precipitation rates. KEY FINDINGS The measured kinetic and intrinsic solubilities provide a determination of the influence of each excipient on supersaturation index, and the area under the CheqSol curve can measure the parachute capability of excipients. The excipients influence on precipitation kinetics can be measured with novel parameters; for example, the precipitation pH or percentage ionised drug at the precipitation point, which provide further information on the excipient-induced changes in precipitation performance. CONCLUSION This method can therefore be employed to measure the influence of non-ionisable excipients on the kinetic solubility behaviour of supersaturated solutions of ionisable drugs and to provide data, which discriminates between excipient systems during precipitation.
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Affiliation(s)
- Kelly Etherson
- Cancer Research UK Formulation Unit, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Gavin Halbert
- Cancer Research UK Formulation Unit, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Moira Elliott
- Cancer Research UK Formulation Unit, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
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Khadra I, Zhou Z, Dunn C, Wilson CG, Halbert G. Statistical investigation of simulated intestinal fluid composition on the equilibrium solubility of biopharmaceutics classification system class II drugs. Eur J Pharm Sci 2015; 67:65-75. [PMID: 25444845 DOI: 10.1016/j.ejps.2014.10.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/29/2014] [Accepted: 10/29/2014] [Indexed: 11/30/2022]
Abstract
A drug's solubility and dissolution behaviour within the gastrointestinal tract is a key property for successful administration by the oral route and one of the key factors in the biopharmaceutics classification system. This property can be determined by investigating drug solubility in human intestinal fluid (HIF) but this is difficult to obtain and highly variable, which has led to the development of multiple simulated intestinal fluid (SIF) recipes. Using a statistical design of experiment (DoE) technique this paper has investigated the effects and interactions on equilibrium drug solubility of seven typical SIF components (sodium taurocholate, lecithin, sodium phosphate, sodium chloride, pH, pancreatin and sodium oleate) within concentration ranges relevant to human intestinal fluid values. A range of poorly soluble drugs with acidic (naproxen, indomethacin, phenytoin, and piroxicam), basic (aprepitant, carvedilol, zafirlukast, tadalafil) or neutral (fenofibrate, griseofulvin, felodipine and probucol) properties have been investigated. The equilibrium solubility results determined are comparable with literature studies of the drugs in either HIF or SIF indicating that the DoE is operating in the correct space. With the exception of pancreatin, all of the factors individually had a statistically significant influence on equilibrium solubility with variations in magnitude of effect between the acidic and basic or neutral compounds and drug specific interactions were evident. Interestingly for the neutral compounds pH was the factor with the second largest solubility effect. Around one third of all the possible factor combinations showed a significant influence on equilibrium solubility with variations in interaction significance and magnitude of effect between the acidic and basic or neutral compounds. The least number of significant media component interactions were noted for the acidic compounds with three and the greatest for the neutral compounds at seven, with again drug specific effects evident. This indicates that a drug's equilibrium solubility in SIF is influenced depending upon drug type by between eight to fourteen individual or combinations of media components with some of these drug specific. This illustrates the complex nature of these fluids and provides for individual drugs a visualisation of the possible solubility envelope within the gastrointestinal tract, which may be of importance for modelling in vivo behaviour. In addition the results indicate that the design of experiment approach can be employed to provide greater detail of drug solubility behaviour, possible drug specific interactions and influence of variations in gastrointestinal media components due to disease. The approach is also feasible and amenable to adaptation for high throughput screening of drug candidates.
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Affiliation(s)
- Ibrahim Khadra
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, United Kingdom
| | - Zhou Zhou
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, United Kingdom.
| | - Claire Dunn
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, United Kingdom
| | - Clive G Wilson
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, United Kingdom
| | - Gavin Halbert
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, United Kingdom
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