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Pisay M, Yarlagadda DL, Vullendula SKA, Bhat K, Kunnatur Balasundara K, Mutalik S. Effervescence-induced amorphous solid dispersions with improved drug solubility and dissolution. Pharm Dev Technol 2023; 28:176-189. [PMID: 36688412 DOI: 10.1080/10837450.2023.2172039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The current study aimed to investigate drug carrier miscibility in pharmaceutical solid dispersions (SD) and include the effervescent system, i.e. Effervescence-induced amorphous solid dispersions (ESD), to enhance the solubility of a poorly water-soluble Glibenclamide (GLB). Kollidon VA 64, PEG-3350, and Gelucire-50/13 were selected as the water-soluble carriers. The miscibility of the drug-carrier was predicted by molecular dynamics simulation, Hansen solubility parameters, Flory-Huggins theory, and Gibb's free energy. Solid dispersions were prepared by microwave, solvent evaporation, lyophilization, and Hot Melt Extrusion (HME) methods. The prepared solid dispersions were subjected to solubility, in-vitro dissolution, and other characterization studies. The in-silico and theoretical approach suggested that the selected polymers exhibited better miscibility with GLB. Solid-state characterizations like FTIR and 1H NMR proved the formation of intermolecular hydrogen bonding between the drug and carriers, which was comparatively higher in ESDs than SDs. DSC, PXRD, and microscopic examination of GLB and SDs confirmed the amorphization of GLB, which was higher in ESDs than SDs. Gibb's free energy concept suggested that the prepared solid dispersions will be stable at room temperature. Ex-vivo intestinal absorption study on optimized ESDs prepared with Kollidon VA64 using the HME technique exhibited a higher flux and permeability coefficient than the pure drug suggesting a better drug delivery. The drug-carrier miscibility was successfully studied in SDs of GLB. The addition of the effervescent agent further enhanced the solubility and dissolution of GLB. Additionally, this might exhibit a better bioavailability, confirmed by ex-vivo intestinal absorption study.
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Affiliation(s)
- Muralidhar Pisay
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Dani Lakshman Yarlagadda
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Sai Krishna Anand Vullendula
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Krishnamurthy Bhat
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Koteshwara Kunnatur Balasundara
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
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Pisay M, Bhaskar KV, Mehta CH, Nayak UY, Koteshwara KB, Mutalik S. Drug-Carrier Miscibility in Solid Dispersions of Glibenclamide and a Novel Approach to Enhance Its Solubility Using an Effervescent Agent. AAPS PharmSciTech 2022; 23:284. [PMID: 36253571 DOI: 10.1208/s12249-022-02437-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/04/2022] [Indexed: 11/30/2022] Open
Abstract
The present research aims to investigate the miscibility, physical stability, solubility, and dissolution rate of a poorly water-soluble glibenclamide (GLB) in solid dispersions (SDs) with hydrophilic carriers like PEG-1500 and PEG-50 hydrogenated palm glycerides (Acconon). Mathematical theories such as Hansen solubility parameters, Flory Huggins theory, Gibbs free energy, and the in silico molecular dynamics simulation study approaches were used to predict the drug-carrier miscibility. To increase the solubility further, the effervescence technique was introduced to the conventional solid dispersions to prepare effervescent solid dispersions (ESD). Solid dispersions (SDs) were prepared by microwave, solvent evaporation, lyophilization, and hot melt extrusion (HME) techniques and tested for different characterization parameters. The theoretical and in silico parameters suggested that GLB would show good miscibility with the selected carriers under certain conditions. Intermolecular hydrogen bonding between the drug and carrier(s) was confirmed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy. Solid-state characterizations like powder X-ray diffraction, differential scanning calorimetry, and microscopy confirm the amorphous nature of SDs. The addition of the effervescent agent improved the amorphous nature, due to which the solubility and drug release rate was increased. In vitro and ex vivo intestinal absorption studies showed improved flux and permeability than the pure drug, suggesting an enhanced drug delivery. The GLB solubility, dissolution, and stability were greatly enhanced by the SD and ESD technology.
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Affiliation(s)
- Muralidhar Pisay
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576106, India
| | - K Vijaya Bhaskar
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576104, India
| | - Chetan Hasmukh Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576106, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576106, India
| | - Kunnatur Balasundara Koteshwara
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576106, India.
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka State, 576106, India.
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Rodriguez-Fernandez K, Gras-Colomer E, Climente-Martí M, Mangas-Sanjuán V, Merino-Sanjuan M. Pharmacometric characterization of entero-hepatic circulation processes of orally administered formulations of amiodarone under complex binding kinetics. Eur J Pharm Sci 2022; 174:106198. [DOI: 10.1016/j.ejps.2022.106198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/19/2022] [Accepted: 04/28/2022] [Indexed: 11/03/2022]
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Qamar Z, Ashhar MU, Annu, Qizilibash FF, Sahoo PK, Ali A, Ali J, Baboota S. Lipid nanocarrier of selegiline augmented anti-Parkinson's effect via P-gp modulation using quercetin. Int J Pharm 2021; 609:121131. [PMID: 34563617 DOI: 10.1016/j.ijpharm.2021.121131] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/19/2021] [Accepted: 09/21/2021] [Indexed: 01/08/2023]
Abstract
In the present study, SEL was loaded in a lipid nanocarrier (LNC) formulation with a P-gp pump inhibitor i.e., Quercetin (QUR) for improving the bioavailability of the SEL in the brain via the oral route. SEL-QUR LNC was formulated using modified emulsiosonication method and optimized using central composite rotatable design (CCRD) design. The results showed that optimized SEL-QUR LNC formulation was spherical with globule size, polydispersity index, entrapment efficiency and zeta potential within the range of 92.46-95.34 nm, 0.239-0.248, 88.94-91.26%, and -6.21 to -7.75 mV respectively. A 4-fold and 6-fold increase was observed in the permeation of SEL from SEL-QUR LNC across the gut sac in comparison with SEL-QUR and SEL suspensions respectively. CLSM images showed 2-fold deeper permeation of SEL across intestinal membrane demonstrating excellent in vivo prospect of the formulation. The behavioural studies including forced swimming, muscle coordination, locomotor activity, akinesia, and catalepsy were performed in the haloperidol-induced PD rats that demonstrated increased efficacy of the formulation in contrast to the SEL-QUR and SEL suspensions. These studies concluded that developed LNC formulation loaded SEL with P-gp inhibitor had the potential in improving bioavailability of SEL in the brain via oral route.
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Affiliation(s)
- Zufika Qamar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Muhammad Usama Ashhar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Annu
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Farheen Fatima Qizilibash
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Pravat Kumar Sahoo
- Delhi Institute of Pharmaceutical Science and Research (DIPSAR), Pushp Vihar, Sector III, MB Road, New Delhi 110017, India
| | - Asgar Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Javed Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Sanjula Baboota
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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Xin W, Wang Y, Bian Y, Lin J, Weng W, Zhao X, Gou K, Guo X, Li H. Facile synthesis of PEI-based crystalline templated mesoporous silica with molecular chirality for improved oral delivery of the poorly water-soluble drug. Drug Deliv 2021; 28:894-905. [PMID: 33960251 PMCID: PMC8118497 DOI: 10.1080/10717544.2021.1912212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to build up a novel chiral mesoporous silica called PEIs@TA-CMS through a facile biomimetic strategy and to explore its potential to serve as a drug carrier for improving the delivery efficiency of poorly water-soluble drug. PEIs@TA-CMS was synthesized by using a chiral crystalline complex associated of tartaric acid and polyethyleneimine (PEIs) as templates, scaffolds and catalysts. The structural features including morphology, size, pore structure and texture properties were systematacially studied. The results showed that PEIs@TA-CMS was monodispersed spherical nanoparticles in a uniformed diameter of 120–130 nm with well-developed pore structure (SBET: 1009.94 m2/g, pore size <2.21 nm). Then PEIs@TA-CMS was employed as nimodipine (NMP) carrier and compared with the drug carry ability of MCM41. After drug loading, NMP was effectively transformed from the crystalline state to an amorphous state due to the space confinement in mesopores. As expected, PEIs@TA-CMS had superiority in both drug loading and drug release compared to MCM41. It could incorporate NMP with high efficiency, and the dissolution-promoting effect of PEIs@TA-CMS was more obvious because of the unique interconnected curved pore channels. Meanwhile, PEIs@TA-CMS could significantly improve the oral adsorption of NMP to a satisfactory level, which showed approximately 3.26-fold higher in bioavailability, and could effectively prolong the survival time of mice on cerebral anoxia from 10.98 to 17.33 min.
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Affiliation(s)
- Wei Xin
- School of Pharmacy, China Medical University, Shenyang, China.,The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yumei Wang
- School of Pharmacy, China Medical University, Shenyang, China.,School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yan Bian
- School of Pharmacy, China Medical University, Shenyang, China
| | - Jiahui Lin
- School of Pharmacy, China Medical University, Shenyang, China
| | - Wenhao Weng
- School of Pharmacy, China Medical University, Shenyang, China
| | - Xinyi Zhao
- School of Pharmacy, China Medical University, Shenyang, China
| | - Kaijun Gou
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xianmou Guo
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Heran Li
- School of Pharmacy, China Medical University, Shenyang, China.,School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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Dual response to pH and chiral microenvironments for the release of a flurbiprofen-loaded chiral self-assembled mesoporous silica drug delivery system. Colloids Surf B Biointerfaces 2021; 199:111501. [DOI: 10.1016/j.colsurfb.2020.111501] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/16/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023]
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Combination of structure-performance and shape-performance relationships for better biphasic release in electrospun Janus fibers. Int J Pharm 2021; 596:120203. [PMID: 33497703 DOI: 10.1016/j.ijpharm.2021.120203] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/14/2020] [Accepted: 12/24/2020] [Indexed: 12/16/2022]
Abstract
In nature, the combination of composition, structure, and shape determines the matter's functional performance to a large extent. Inspired by which, two electrospun Janus nanofiber formulations were created using side-by-side electrospinning in this work. Tamoxifen citrate (TAM) was used as a model drug and ethyl cellulose (EC) and polyvinylpyrrolidone K60 (PVP) as the polymer carrier matrices. The fibers have linear cylindrical morphologies and distinct Janus structures by scanning electron microscopy. One side of the fibers took a round shape, while the other was crescent-shaped. The drug was present in both polymer matrices in the form of amorphous solid dispersions, owing to strong intermolecular interactions between drug and polymer. In vitro dissolution tests demonstrated that both sets of fibers could provide biphasic drug release due to the difference in solubility of PVP and EC. The different shape of TAM-EC and TAM-PVP side of the Janus structure resulted in a considerable variation in the drug release profiles. The Janus structure with crescent TAM-PVP side and round TAM-EC side gave a more rapid burst release in the first phase of release, and slower sustained release in the second phase. This work thus reports a new strategy for systematically developing advanced functional nanomaterials based on both shape- and structure-performance relationships.
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Bahadur S, Yadu K, Baghel P, Naurange T, Sahu M. Review of formulation and evaluation of self-micro emulsifying drug delivery system (SMEDDS). SCIENCERISE: PHARMACEUTICAL SCIENCE 2020. [DOI: 10.15587/2519-4852.2020.210825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Insoluble Polymers in Solid Dispersions for Improving Bioavailability of Poorly Water-Soluble Drugs. Polymers (Basel) 2020; 12:polym12081679. [PMID: 32731391 PMCID: PMC7466147 DOI: 10.3390/polym12081679] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 01/14/2023] Open
Abstract
In recent decades, solid dispersions have been demonstrated as an effective approach for improving the bioavailability of poorly water-soluble drugs, as have solid dispersion techniques that include the application of nanotechnology. Many studies have reported on the ability to change drug crystallinity and molecular interactions to enhance the dissolution rate of solid dispersions using hydrophilic carriers. However, numerous studies have indicated that insoluble carriers are also promising excipients in solid dispersions. In this report, an overview of solid dispersion strategies involving insoluble carriers has been provided. In addition to the role of solubility and dissolution enhancement, the perspectives of the use of these polymers in controlled release solid dispersions have been classified and discussed. Moreover, the compatibility between methods and carriers and between drug and carrier is mentioned. In general, this report on solid dispersions using insoluble carriers could provide a specific approach and/or a selection of these polymers for further formulation development and clinical applications.
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Jianxian C, Saleem K, Ijaz M, Ur-Rehman M, Murtaza G, Asim MH. Development and in vitro Evaluation of Gastro-protective Aceclofenac-loaded Self-emulsifying Drug Delivery System. Int J Nanomedicine 2020; 15:5217-5226. [PMID: 32801687 PMCID: PMC7384876 DOI: 10.2147/ijn.s250242] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/15/2020] [Indexed: 12/12/2022] Open
Abstract
AIM Chronic use of oral nonsteroidal anti-inflammatory drugs (NSAIDs) is commonly associated with gastric irritation and gastric ulceration. Therefore, the aim of study was to develop a novel oral drug delivery system with minimum gastric effects and improved dissolution rate for aceclofenac (ACF), a model BCS class-II drug. METHODS Self-emulsifying drug delivery systems (SEDDS) were formulated to increase the solubility and ultimately the oral bioavailability of ACF. Oleic acid was used as an oil phase, Tween 80 (T80) and Kolliphor EL (KEL) were used as surfactants, whereas, polyethylene glycol 400 (PEG 400) and propylene glycol (PG) were employed as co-surfactants. Optimized formulations (F1, F2, F3 and F4) were analyzed for droplet size, poly dispersity index (PDI), cell viability studies, in vitro dissolution in both simulated gastric fluid and simulated intestinal fluid, ex vivo permeation studies and thermodynamic stability. RESULTS The optimized formulations showed mean droplet sizes in the range of 111.3 ± 3.2 nm and 470.9 ± 12.52 nm, PDI from 244.6 nm to 389.4 ± 6.51 and zeta-potential from -33 ± 4.86 mV to -38.5 ± 5.15 mV. Cell viability studies support the safety profile of all formulations for oral administration. The in vitro dissolution studies and ex vivo permeation analysis revealed significantly improved drug release ranging from 95.68 ± 0.02% to 98.15 ± 0.71% when compared with control. The thermodynamic stability studies confirmed that all formulations remain active and stable for a longer period. CONCLUSION In conclusion, development of oral SEDDS might be a promising tool to improve the dissolution of BCS class-II drugs along with significantly reduced exposure to gastric mucosa.
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Affiliation(s)
- Chen Jianxian
- School of Economics, Capital University of Economics and Business, Beijing, People’s Republic of China
- Chapter of traditional Chinese Medicine, China Information Industry Association, Beijing, China
| | - Kalsoom Saleem
- Riphah Institute of Pharmaceutical Sciences, Islamabad, Pakistan
| | - Muhammad Ijaz
- COMSATS University Islamabad, Lahore Campus, Lahore54000, Pakistan
| | - Masood Ur-Rehman
- Riphah Institute of Pharmaceutical Sciences, Islamabad, Pakistan
| | - Ghulam Murtaza
- COMSATS University Islamabad, Lahore Campus, Lahore54000, Pakistan
| | - Mulazim Hussain Asim
- Institute of Pharmaceutical Technology, University of Innsbruck, Innsbruck6020, Austria
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Li Y, Alhendi AMN, Yeh MC, Elahy M, Santiago FS, Deshpande NP, Wu B, Chan E, Inam S, Prado-Lourenco L, Marchand J, Joyce RD, Wilkinson-White LE, Raftery MJ, Zhu M, Adamson SJ, Barnat F, Viaud-Quentric K, Sockler J, Mackay JP, Chang A, Mitchell P, Marcuccio SM, Khachigian LM. Thermostable small-molecule inhibitor of angiogenesis and vascular permeability that suppresses a pERK-FosB/ΔFosB-VCAM-1 axis. SCIENCE ADVANCES 2020; 6:eaaz7815. [PMID: 32923607 PMCID: PMC7450479 DOI: 10.1126/sciadv.aaz7815] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
Vascular permeability and angiogenesis underpin neovascular age-related macular degeneration and diabetic retinopathy. While anti-VEGF therapies are widely used clinically, many patients do not respond optimally, or at all, and small-molecule therapies are lacking. Here, we identified a dibenzoxazepinone BT2 that inhibits endothelial cell proliferation, migration, wound repair in vitro, network formation, and angiogenesis in mice bearing Matrigel plugs. BT2 interacts with MEK1 and inhibits ERK phosphorylation and the expression of FosB/ΔFosB, VCAM-1, and many genes involved in proliferation, migration, angiogenesis, and inflammation. BT2 reduced retinal vascular leakage following rat choroidal laser trauma and rabbit intravitreal VEGF-A165 administration. BT2 suppressed retinal CD31, pERK, VCAM-1, and VEGF-A165 expression. BT2 reduced retinal leakage in rats at least as effectively as aflibercept, a first-line therapy for nAMD/DR. BT2 withstands boiling or autoclaving and several months' storage at 22°C. BT2 is a new small-molecule inhibitor of vascular permeability and angiogenesis.
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Affiliation(s)
- Yue Li
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Ahmad M. N. Alhendi
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mei-Chun Yeh
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mina Elahy
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Fernando S. Santiago
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nandan P. Deshpande
- Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Ben Wu
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Enoch Chan
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Shafqat Inam
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Leonel Prado-Lourenco
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jessica Marchand
- Advanced Molecular Technologies Pty Ltd, Scoresby, VIC 3179, Australia
| | - Rohan D. Joyce
- Advanced Molecular Technologies Pty Ltd, Scoresby, VIC 3179, Australia
| | | | - Mark J. Raftery
- Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, NSW 2052, Australia
| | - Meidong Zhu
- New South Wales Tissue Bank, New South Wales Organ and Tissue Donation Service, South Eastern Sydney Local Health District, Kogarah, NSW 2217, Australia
- Save Sight Institute, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, NSW 2006, Australia
- GreenLight Clinical Pty. Ltd., Woolloomooloo, NSW 2011, Australia
| | | | | | | | - Jim Sockler
- Statistical Operations and Programming, Datapharm Australia Pty. Ltd., Drummoyne, NSW 2047, Australia
| | - Joel P. Mackay
- School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia
| | - Andrew Chang
- Save Sight Institute, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, NSW 2006, Australia
- GreenLight Clinical Pty. Ltd., Woolloomooloo, NSW 2011, Australia
- Sydney Eye Hospital, Sydney NSW 2000 and University of Sydney, NSW 2006, Australia
| | - Paul Mitchell
- Centre for Vision Research, Department of Ophthalmology, Westmead Institute for Medical Research, Westmead Hospital, University of Sydney, Westmead, NSW 2145, Australia
| | - Sebastian M. Marcuccio
- Advanced Molecular Technologies Pty Ltd, Scoresby, VIC 3179, Australia
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia
| | - Levon M. Khachigian
- Vascular Biology and Translational Research, School of Medical Sciences and UNSW Medicine, University of New South Wales, Sydney, NSW 2052, Australia
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In Silico Prediction of Intestinal Permeability by Hierarchical Support Vector Regression. Int J Mol Sci 2020; 21:ijms21103582. [PMID: 32438630 PMCID: PMC7279352 DOI: 10.3390/ijms21103582] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/14/2020] [Accepted: 05/17/2020] [Indexed: 11/17/2022] Open
Abstract
The vast majority of marketed drugs are orally administrated. As such, drug absorption is one of the important drug metabolism and pharmacokinetics parameters that should be assessed in the process of drug discovery and development. A nonlinear quantitative structure-activity relationship (QSAR) model was constructed in this investigation using the novel machine learning-based hierarchical support vector regression (HSVR) scheme to render the extremely complicated relationships between descriptors and intestinal permeability that can take place through various passive diffusion and carrier-mediated active transport routes. The predictions by HSVR were found to be in good agreement with the observed values for the molecules in the training set (n = 53, r2 = 0.93, q CV 2 = 0.84, RMSE = 0.17, s = 0.08), test set (n = 13, q2 = 0.75-0.89, RMSE = 0.26, s = 0.14), and even outlier set (n = 8, q2 = 0.78-0.92, RMSE = 0.19, s = 0.09). The built HSVR model consistently met the most stringent criteria when subjected to various statistical assessments. A mock test also assured the predictivity of HSVR. Consequently, this HSVR model can be adopted to facilitate drug discovery and development.
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Theochari I, Papadimitriou V, Papahatjis D, Assimomytis N, Pappou E, Pratsinis H, Xenakis A, Pletsa V. Oil-In-Water Microemulsions as Hosts for Benzothiophene-Based Cytotoxic Compounds: An Effective Combination. Biomimetics (Basel) 2018; 3:biomimetics3020013. [PMID: 31105235 PMCID: PMC6352693 DOI: 10.3390/biomimetics3020013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/07/2018] [Accepted: 06/12/2018] [Indexed: 01/07/2023] Open
Abstract
Targeted delivery of chemotherapeutics in order to overcome side effects and enhance chemosensitivity remains a major issue in cancer research. In this context, biocompatible oil-in-water (O/W) microemulsions were developed as matrices for the encapsulation of DPS-2 a benzothiophene analogue, exhibiting high cytotoxicity in various cancer cell lines, among them the MW 164 skin melanoma and Caco-2 human epithelial colorectal adenocarcinoma cell lines. The microemulsion delivery system was structurally characterized by dynamic light scattering (DLS) and electron paramagnetic resonance (EPR) spectroscopy. The effective release of a lipophilic encapsulated compound was evaluated via confocal microscopy. The cytotoxic effect, in the presence and absence of DPS-2, was examined through the thiazolyl blue tetrazolium bromide (MTT) cell proliferation assay. When encapsulated, DPS-2 was as cytotoxic as when dissolved in dimethyl sulfoxide (DMSO). Hence, the oil cores of O/W microemulsions were proven effective biocompatible carriers of lipophilic bioactive molecules in biological assessment experiments. Further investigation through fluorescence-activated cell sorting (FACS) analysis, comet assay, and Western blotting, revealed that DPS-2, although non-genotoxic, induced S phase delay accompanied by cdc25A degradation and a nonapoptotic cell death in both cell lines, which implies that this benzothiophene analogue is a deoxyribonucleic acid (DNA) replication inhibitor.
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Affiliation(s)
- Ioanna Theochari
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
- Department of Biochemistry and Biotechnology, School of Health Sciences, University of Thessaly, Viopolis, 41500 Larissa, Greece
| | - Vassiliki Papadimitriou
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
| | - Demetris Papahatjis
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
| | - Nikos Assimomytis
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
| | - Efthimia Pappou
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
| | - Harris Pratsinis
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre of Scientific Research “Demokritos”, 11635 Athens, Greece;
| | - Aristotelis Xenakis
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
| | - Vasiliki Pletsa
- Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (I.T.); (V.Pa.); (D.P.); (N.A.); (E.P.); (A.X.)
- Correspondence: ; Tel.: +302-107-273-7541
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