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Schwarzinger J, Adelsberger S, Ortmayr K, Stellnberger SL, Tahir A, Hädrich G, Pichler V, Rollinger JM, Grienke U, Dailey LA. Biopharmaceutical profiling of anti-infective sanggenons from Morus alba root bark for inhalation administration. Int J Pharm X 2024; 8:100272. [PMID: 39252692 PMCID: PMC11381475 DOI: 10.1016/j.ijpx.2024.100272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 09/11/2024] Open
Abstract
Mulberry Diels-Alder-type adducts (MDAAs), isolated from Morus alba root bark, exhibit dual activity against viral and bacterial pathogens but show sobering efficacy following oral administration. Inhalation administration may overcome issues with oral bioavailability and improve efficacy for the treatment of respiratory infections. To assess the suitability of MDAAs for inhalation administration, physicochemical (e.g. pH, pKa, logP, pH-dependent solubility) and biopharmaceutical (epithelial cytotoxicity, permeability, and uptake) properties of two bioactive MDAA stereoisomers sanggenon C (SGC) and sanggenon D (SGD) were evaluated as isolated natural compounds and within parent extracts (MA21, MA60). Despite their structural similarity, SGD exhibited a 10-fold higher solubility than SGC across pH 1.2-7.4, with slight increases at neutral pH. Both compounds were more soluble in isolated form than in the parent extracts. The more lipophilic SGC was found to be more cytotoxic when compared to SGD, indicating a better cellular penetration, which was confirmed by uptake studies. Nonetheless, SGC and SGD exhibited no measurable permeability across intact Calu-3 monolayers, highlighting their potential for increased lung retention and improved local anti-infective activity following inhalation administration. Results suggest that SGC and SGD in isolated form, rather than as extracts, are promising candidates for pulmonary drug delivery to treat lung infections.
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Affiliation(s)
- Jacqueline Schwarzinger
- Division of Pharmaceutical Technology and Biopharmaceutics, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Sigrid Adelsberger
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Karin Ortmayr
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Sarah Luise Stellnberger
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Division of Pharmaceutical Chemistry, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Ammar Tahir
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Gabriela Hädrich
- Division of Pharmaceutical Technology and Biopharmaceutics, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Verena Pichler
- Division of Pharmaceutical Chemistry, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Judith M Rollinger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Ulrike Grienke
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Lea Ann Dailey
- Division of Pharmaceutical Technology and Biopharmaceutics, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
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Li X, Lian T, Su B, Liu H, Wang Y, Wu X, He J, Wang Y, Xu Y, Yang S, Li Y. Construction of a physiologically based pharmacokinetic model of paclobutrazol and exposure estimation in the human body. Toxicology 2024; 505:153841. [PMID: 38796053 DOI: 10.1016/j.tox.2024.153841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Paclobutrazol (PBZ) is a plant growth regulator that can delay plant growth and improve plant resistance and yield. Although it has been widely used in the growth of medicinal plants, human beings may take it by taking traditional Chinese medicine. There are no published studies on PBZ exposure in humans or standardized limits for PBZ in medicinal plants. We measured the solubility, oil-water partition coefficient (logP), and pharmacokinetics of PBZ in rats and established a physiologically based pharmacokinetic (PBPK) model of PBZ in rats. This was followed by extrapolation to healthy Chinese adult males as a theoretical foundation for future risk assessment of PBZ. The results showed that PBZ had low solubility and high fat solubility. Pharmacokinetic experiments showed that PBZ was absorbed rapidly but eliminated slowly in rats. On this basis, the rat PBPK model was successfully constructed and extrapolated to healthy Chinese adult males to predict the plasma concentration-time curve and exposure of PBZ in humans. The construction of the PBPK model of PBZ in this study facilitates the determination of the standard formulation limits and risk assessment of PBZ residues in medicinal plants.
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Affiliation(s)
- Xiaomeng Li
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Tingting Lian
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Buda Su
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Hui Liu
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Yuming Wang
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Xiaoyan Wu
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Junjie He
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Yue Wang
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China
| | - Yanyan Xu
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China.
| | - Shenshen Yang
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China.
| | - Yubo Li
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyang Lake Road, West Zone, Jinghai District, Tuanbo New City, Tianjin 301617, PR China.
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Maggi L, Friuli V, Cerea B, Bruni G, Berbenni V, Bini M. Physicochemical Characterization of Hydroxyapatite Hybrids with Meloxicam for Dissolution Rate Improvement. Molecules 2024; 29:2419. [PMID: 38893294 PMCID: PMC11173451 DOI: 10.3390/molecules29112419] [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: 04/24/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
Organic-inorganic hybrids represent a good solution to improve the solubility and dissolution rates of poorly soluble drugs whose number has been increasing in the last few years. One of the most diffused inorganic matrices is hydroxyapatite (HAP), which is a biocompatible and osteoconductive material. However, the understanding of the hybrids' functioning mechanisms is in many cases limited; thus, thorough physicochemical characterizations are needed. In the present paper, we prepared hybrids of pure and Mg-doped hydroxyapatite with meloxicam, a drug pertaining to the Biopharmaceutical Classification System (BCS) class II, i.e., drugs with low solubility and high permeability. The hybrids' formation was demonstrated by FT-IR, which suggested electrostatic interactions between HAP and drug. The substitution of Mg in the HAP structure mainly produced a structural disorder and a reduction in crystallite sizes. The surface area of HAP increased after Mg doping from 82 to 103 m2g-1 as well as the pore volume, justifying the slightly high drug amount adsorbed by the Mg hybrid. Notwithstanding the low drug loading on the hybrids, the solubility, dissolution profiles and wettability markedly improved with respect to the drug alone, particularly for the Mg doped one, which was probably due to the main distribution of the drug on the HAP surface.
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Affiliation(s)
- Lauretta Maggi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy;
| | - Valeria Friuli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy;
| | - Beatrice Cerea
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy;
| | - Giovanna Bruni
- Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy; (G.B.); (V.B.)
- Consorzio per i Sistemi a Grande Interfase (CSGI), Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy
| | - Vittorio Berbenni
- Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy; (G.B.); (V.B.)
| | - Marcella Bini
- Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy; (G.B.); (V.B.)
- Consorzio per i Sistemi a Grande Interfase (CSGI), Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy
- National Reference Centre for Electrochemical Energy Storage (GISEL), Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
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Atneriya U, Sainy J, Chidrawar VR, Sharma M, Maheshwari R. D-optimal mixture design inspired modified release tablet formulation of lamotrigine for the treatment of seizures: An in-depth characterization. ANNALES PHARMACEUTIQUES FRANÇAISES 2024; 82:446-463. [PMID: 37866637 DOI: 10.1016/j.pharma.2023.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE Lamotrigine (LTG) an anticonvulsant drug with a dissociation constant (pKa: 5.7), suffers from enhanced blood plasma spike after each dose, when administered as fast release tablet. Being BCS class-II candidate and pH dependent solubility, development of release-controlled tablets of LTG is a major challenge. This investigation aims at designing the release-controlled tablet (RCT) formulation of LTG using a solid dispersion (SD) technique via addressing its solubility and release problems. MATERIAL AND METHODS RCT of LTG was fabricated using SD blend of Eudragit RL and Eudragit RS and PVP K-30 with different polymer blend ratio (1:5 and 1:7). The optimization of RCT of LTG was performed using D-optimal mixture design with three independent variables, three response variables, and one constraint. The dissolution rate was determined and data were then fitted to different mathematical models. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) studies and tableting parameters were analyzed. RESULT In vitro studies of predicted optimized batches (POBs) have shown that drug release over a period of 12hours was 88.05±3.4% in media I, 86.10±3.7% in media II and 85.84±4.2% in media III. An in vitro kinetic model equating R2-value for all the tested models indicated that the first order and Higuchi release kinetics model were the most appropriate. CONCLUSION Based on the optimized formulation consisting of SD of LTG with Eudragit RL, Eudragit RS and PVP K-30, the release rate was consistently similar throughout the GI tract, regardless of the pH of the environment.
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Affiliation(s)
- Umesh Atneriya
- School of Pharmacy, Devi-Ahilya-Vishwavidhylaya, Indore-454309, India
| | - Jitendra Sainy
- School of Pharmacy, Devi-Ahilya-Vishwavidhylaya, Indore-454309, India
| | - Vijay R Chidrawar
- School of Pharmacy and Technology Management, SVKM's Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-University, Green Industrial Park, TSIIC, Jadcherla-509301, Hyderabad, India
| | - Mayank Sharma
- School of Pharmacy and Technology Management, SVKM's Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-University, Shirpur-425405, MH, India
| | - Rahul Maheshwari
- School of Pharmacy and Technology Management, SVKM's Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-University, Green Industrial Park, TSIIC, Jadcherla-509301, Hyderabad, India.
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5
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Miranda-Quintana RA, Chen L, Smiatek J. Insights into Hildebrand Solubility Parameters - Contributions from Cohesive Energies or Electrophilicity Densities? Chemphyschem 2024; 25:e202300566. [PMID: 37883736 DOI: 10.1002/cphc.202300566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
We introduce certain concepts and expressions from conceptual density functional theory (DFT) to study the properties of the Hildebrand solubility parameter. The original form of the Hildebrand solubility parameter is used to qualitatively estimate solubilities for various apolar and aprotic substances and solvents and is based on the square root of the cohesive energy density. Our results show that a revised expression allows the replacement of cohesive energy densities by electrophilicity densities, which are numerically accessible by simple DFT calculations. As an extension, the reformulated expression provides a deeper interpretation of the main contributions and, in particular, emphasizes the importance of charge transfer mechanisms. All calculated values of the Hildebrand parameters for a large number of common solvents are compared with experimental values and show good agreement for non- or moderately polar aprotic solvents in agreement with the original formulation of the Hildebrand solubility parameters. The observed deviations for more polar and protic solvents define robust limits from the original formulation which remain valid. Likewise, we show that the use of machine learning methods leads to only slightly better predictability.
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Affiliation(s)
| | - Lexin Chen
- Department of Chemistry, University of Florida, Gainesville, FL 32603, USA
| | - Jens Smiatek
- Institute for Computational Physics, University of Stuttgart, D-70569, Stuttgart, Germany
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6
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Hong LL, Liu YN, Kong JQ. Exploring 3-O-glycosylations of 20(R)-dammarane ginsenosides and the catalytic mechanism underlying the stereoselectivity with the combined assistance of AlphaFold 2 and molecular docking. Int J Biol Macromol 2024; 254:127721. [PMID: 37913883 DOI: 10.1016/j.ijbiomac.2023.127721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/03/2023]
Abstract
Glycosylation at C3-OH is the favorable modification for pharmaceutical activities and diversity expansion of 20(R)-dammarane ginsenosides. The 3-O-glycosylation, exclusively occurring in 20(R)-PPD ginsenosides, has never been achieved in 20(R)-PPT ginsenosides. Herein, 3-O-glycosylation of 20(R)-PPT enabled by a glycosyltransferase (GT) OsSGT2 was achieved with the combined assistance of AlphaFold 2 and molecular docking. Firstly, we combined AlphaFold2 algorithm and molecular docking to predict interactions between 20(R)-PPT and candidate GTs. A catalytically favorable binding geometry was thus identified in the OsSGT2-20(R)-PPT complex, suggesting OsSGT2 might act on 20(R)-PPT. The enzymatic assays demonstrated that OsSGT2 reacted with varied sugar donors to form 20(R)-PPT 3-O-glycosides, exhibiting donor promiscuity. Additionally, OsSGT2 displayed acceptor promiscuity, catalyzing 3-O-glucosylation of 20(R/S)-PPT, 20(R/S)-PPD and 20(R/S)-Rh1, respectively. Protein engineering on OsSGT2 was thus performed to probe its catalytic mechanism underlying its stereoselectivity. The W207A mutant preferred 20(S)-dammarane aglycons, while F395Q/A396G(QG) displayed a conversion enhancement towards both 20(R/S)-dammarane aglycons. The QG mutant was then used to synthesize 20(R)-PPT 3-O-glucoside, which displayed a moderate angiotensin-converting enzyme inhibitory effect with an IC50 of 27.5 ± 4.7 μM, superior to that of its 20(S)-epimer, with the combined assistance of target fishing and reverse docking. The water solubility of 20(R)-PPT 3-O-glucoside increased as well.
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Affiliation(s)
- Li-Li Hong
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College (State Key Laboratory of Bioactive Substance and Function of Natural Medicines, NHC Key Laboratory of Biosynthesis of Natural Products & CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs), Beijing 100050, China
| | - Yuan-Ning Liu
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College (State Key Laboratory of Bioactive Substance and Function of Natural Medicines, NHC Key Laboratory of Biosynthesis of Natural Products & CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs), Beijing 100050, China
| | - Jian-Qiang Kong
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College (State Key Laboratory of Bioactive Substance and Function of Natural Medicines, NHC Key Laboratory of Biosynthesis of Natural Products & CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs), Beijing 100050, China.
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Oggero J, Gasser FB, Zacarías SM, Burns P, Baravalle ME, Renna MS, Ortega HH, Vaillard SE, Vaillard VA. PEGylation of Chrysin Improves Its Water Solubility while Preserving the In Vitro Biological Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19817-19831. [PMID: 38048427 DOI: 10.1021/acs.jafc.3c06357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Chrysin is a natural flavonoid that despite having numerous biological properties, its therapeutic value is limited due to its very low solubility in aqueous media. In this work, chrysin was conjugated with methoxypolyethylene glycols (mPEGs) of different molecular weights (350, 500, 750, and 2000 g/mol), affording PEGylated chrysins with high yields and excellent purities. In all cases, an increase in the water solubility of the conjugates was observed, which was highest when 500 g/mol of mPEG was used in the PEGylation reaction. Furthermore, in aqueous solution, PEGylated chrysins formed aggregates of ellipsoid shape. Electrochemical studies showed that the redox properties were conserved after PEGylation. While in vitro antibacterial and antifungal studies probed that the intrinsic activity was conserved, in vitro antitumor activities against HepG2 (liver carcinoma cells) and PC3 (prostate cancer cell) showed that PEGylated chrysins retained the cytotoxic activity and the ability of induction of apoptosis for the evaluated human cancer cells.
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Affiliation(s)
- Julia Oggero
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, Ruta Nacional 168, km 0, Paraje "El Pozo", Santa Fe 3000, Argentina
| | - Fátima B Gasser
- Instituto de Ciencias Veterinarias del Litoral (ICIVET), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, R. P. Kreder 2805, Esperanza 3080, Argentina
| | - Silvia M Zacarías
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, Ruta Nacional 168, km 0, Paraje "El Pozo", Santa Fe 3000, Argentina
| | - Patricia Burns
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ruta Nacional No. 168, km 472, Ciudad Universitaria UNL, Santa Fe 3000, Argentina
| | - María E Baravalle
- Instituto de Ciencias Veterinarias del Litoral (ICIVET), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, R. P. Kreder 2805, Esperanza 3080, Argentina
- Centro Universitario Gálvez, Universidad Nacional del Litoral, Florentino Ameghino 50 bis, Gálvez, Santa Fe S2252, Argentina
| | - Maria Sol Renna
- Instituto de Ciencias Veterinarias del Litoral (ICIVET), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, R. P. Kreder 2805, Esperanza 3080, Argentina
| | - Hugo H Ortega
- Instituto de Ciencias Veterinarias del Litoral (ICIVET), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, R. P. Kreder 2805, Esperanza 3080, Argentina
| | - Santiago E Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, Ruta Nacional 168, km 0, Paraje "El Pozo", Santa Fe 3000, Argentina
| | - Victoria A Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, Ruta Nacional 168, km 0, Paraje "El Pozo", Santa Fe 3000, Argentina
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Magadla A, Mpeta LS, Britton J, Nyokong T. Photodynamic antimicrobial chemotherapy activities of phthalocyanine-antibiotic conjugates against bacterial biofilms and interactions with extracellular polymeric substances. Photodiagnosis Photodyn Ther 2023; 44:103878. [PMID: 37918559 DOI: 10.1016/j.pdpdt.2023.103878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/18/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023]
Abstract
This study sheds light on how to rationally design efficient photodynamic antimicrobial chemotherapy (PACT) agents by covalently linking phthalocyanines (Pcs) as photosensitizers with an antibiotic: Ciprofloxacin (CIP). Pcs used are zinc (II) 3-(4-((3,17,23-tris(4-(Benzo(d)thiazol-2-yl] thiol) phthalocyanine-9-yl) oxy) phenyl) propanoic acid (1) and zinc (II) 3-(4-(3,17,23-tris(3-(4-(triphenylphosphine) butyl) benzo[d]thiazol-3-ium bromide phthalocyanine-9-yl) oxy) phenyl) propanoic acid (2). High singlet oxygen quantum yields are observed in the presence of CIP. Square wave voltammetry was used to analyse the Pc-CIP uptake by bacteria biofilms of Streptococcus pneumoniae (S. pneumonia) and Escherichia coli (E. coli). Electrochemical impedance spectroscopy and scanning electron spectroscopy were used to study the stability of the biofilms in the presence Pc-CIP complexes and when exposed to light. Raman and time of flight-secondary ion mass spectrometry (TOF-SIMS) are used to identify the breakdown of cellular components of the biofilm and penetration of the Pc-CIP into the biofilms, respectively.
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Affiliation(s)
- Aviwe Magadla
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Lekhetho S Mpeta
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Jonathan Britton
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa.
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9
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Rahimpour E, Moradi M, Sheikhi-Sovari A, Rezaei H, Rezaei H, Jouyban-Gharamaleki V, Kuentz M, Jouyban A. Comparative Drug Solubility Studies Using Shake-Flask Versus a Laser-Based Robotic Method. AAPS PharmSciTech 2023; 24:207. [PMID: 37817041 DOI: 10.1208/s12249-023-02667-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/20/2023] [Indexed: 10/12/2023] Open
Abstract
Drug solubility is of central importance to the pharmaceutical sciences, but reported values often show discrepancies. Various factors have been discussed in the literature to account for such differences, but the influence of manual testing in comparison to a robotic system has not been studied adequately before. In this study, four expert researchers were asked to measure the solubility of four drugs with various solubility behaviors (i.e., paracetamol, mesalazine, lamotrigine, and ketoconazole) in the same laboratory with the same instruments, method, and material sources and repeated their measurements after a time interval. In addition, the same solubility data were determined using an automated laser-based setup. The results suggest that manual testing leads to a handling influence on measured solubility values, and the results were discussed in more detail as compared to the automated laser-based system. Within the framework of unavoidable uncertainties of solubility testing, it is a possibility to combine minimal experimental testing that is preferably automated with mathematical modeling. That is a practical suggestion to support future pharmaceutical development in a more efficient way.
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Affiliation(s)
- Elaheh Rahimpour
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Moradi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Homa Rezaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadis Rezaei
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Jouyban-Gharamaleki
- Kimia Idea Pardaz Azarbayjan (KIPA) Science Based Company, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstr. 30, 4132, Muttenz, Switzerland
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
- Faculty of Pharmacy, Near East University, Mercin, Turkey.
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10
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Koteva K, Xu M, Wang W, Fiebig-Comyn AA, Cook MA, Coombes BK, Wright GD. Synthetic Biology Facilitates Semisynthetic Development of Type V Glycopeptide Antibiotics Targeting Vancomycin-Resistant Enterococcus. J Med Chem 2023. [PMID: 37315221 DOI: 10.1021/acs.jmedchem.3c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The continued efficacy of glycopeptide antibiotics (GPAs) against Gram-positive bacteria is challenged by the emergence and spread of GPA-resistant pathogens, particularly vancomycin-resistant enterococci (VRE). The growing frequency of GPA resistance propels the need for innovative development of more effective antibiotics. Unlike canonical GPAs like vancomycin, Type V GPAs adopt a distinct mode of action by binding peptidoglycan and blocking the activity of autolysins essential for cell division, rendering them a promising class of antibiotics for further development. In this study, the Type V GPA, rimomycin A, was modified to generate 32 new analogues. Compound 17, derived from rimomycin A through N-terminal acylation and C-terminal amidation, exhibited improved anti-VRE activity and solubility. In a VRE-A neutropenic thigh infection mouse model, compound 17 significantly lowered the bacterial load by 3-4 orders of magnitude. This study sets the stage to develop next-generation GPAs in response to growing VRE infections.
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Affiliation(s)
- Kalinka Koteva
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Min Xu
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, West 7th Avenue No. 32, 300308 Tianjin, China
- Haihe Laboratory of Synthetic Biology, West 15th Avenue No. 21, 300308 Tianjin, China
| | - Wenliang Wang
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Aline A Fiebig-Comyn
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Michael A Cook
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Brian K Coombes
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Gerard D Wright
- David Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada
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11
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pH-dependent solubility prediction for optimized drug absorption and compound uptake by plants. J Comput Aided Mol Des 2023; 37:129-145. [PMID: 36797399 DOI: 10.1007/s10822-023-00496-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 01/31/2023] [Indexed: 02/18/2023]
Abstract
Aqueous solubility is the most important physicochemical property for agrochemical and drug candidates and a prerequisite for uptake, distribution, transport, and finally the bioavailability in living species. We here present the first-ever direct machine learning models for pH-dependent solubility in water. For this, we combined almost 300000 data points from 11 solubility assays performed over 24 years and over one million data points from lipophilicity and melting point experiments. Data were split into three pH-classes - acidic, neutral and basic - , representing the conditions of stomach and intestinal tract for animals and humans, and phloem and xylem for plants. We find that multi-task neural networks using ECFP-6 fingerprints outperform baseline random forests and single-task neural networks on the individual tasks. Our final model with three solubility tasks using the pH-class combined data from different assays and five helper tasks results in root mean square errors of 0.56 log units overall (acidic 0.61; neutral 0.52; basic 0.54) and Spearman rank correlations of 0.83 (acidic 0.78; neutral 0.86; basic 0.86), making it a valuable tool for profiling of compounds in pharmaceutical and agrochemical research. The model allows for the prediction of compound pH profiles with mean and median RMSE per molecule of 0.62 and 0.56 log units.
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12
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Moroni AB, Mayoral EP, Lionello DF, Vega DR, Kaufman TS, Calvo NL. Solid-state properties of Nifurtimox. Preparation, analytical characterization, and stability of an amorphous phase. Eur J Pharm Biopharm 2023; 184:25-35. [PMID: 36681284 DOI: 10.1016/j.ejpb.2023.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
Nifurtimox (NFX) is a nitrofuran derivative used to treat Chagas disease, a neglected disease caused by the protozoan Trypanosoma cruzi. The drug is very sparingly soluble in aqueous media and no other solid phases of NFX have been reported to date. The preparation of the amorphous mode of NFX is reported, as well as its characterization by hot stage microscopy, thermal (differential scanning calorimetry and thermogravimetric analysis), spectroscopic (solid state nuclear magnetic resonance, mid-infrared, and near-infrared), diffractometric and functional (powder dissolution rate) means. The stability of the new phase was investigated. This was characterized using thermal, spectroscopic, and diffractometric methods, finding out its spontaneous reversion to the crystalline state, as sign of instability. In addition, the amorphous material proved to be sensitive to temperature, pressure, and mechanical stress, all of which accelerated phase conversion. However, it was able to remain stable in a model polymeric amorphous solid dispersion with PEG 4000 for more than one month. An approach for monitoring the conversion of the amorphous phase to its crystalline counterpart under thermal stress by chemometric analysis of mid-infrared spectra at different temperatures is also disclosed.
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Affiliation(s)
- Aldana B Moroni
- Área de Análisis de Medicamentos, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario e Instituto de Química Rosario (IQUIR, CONICET-UNR), Suipacha 531, Rosario S2002LRK, Argentina
| | - Elena Perez Mayoral
- Departamento de Química Inorgánica y Química Técnica, Universidad Nacional de Educación a Distancia, UNED, Urbanización Monte Rozas, Avenida Esparta s/n, Ctra. de Las Rozas al Escorial Km 5, 28232 Las Rozas-Madrid, Spain
| | - Diego F Lionello
- Departamento Física de la Materia Condensada, Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica e Instituto Jorge A. Sabato, Universidad Nacional General San Martín, Av. Gral. Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Daniel R Vega
- Departamento Física de la Materia Condensada, Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica y Escuela de Ciencia y Tecnología, Universidad Nacional General San Martín, Av. Gral. Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Teodoro S Kaufman
- Área de Análisis de Medicamentos, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario e Instituto de Química Rosario (IQUIR, CONICET-UNR), Suipacha 531, Rosario S2002LRK, Argentina.
| | - Natalia L Calvo
- Área de Análisis de Medicamentos, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario e Instituto de Química Rosario (IQUIR, CONICET-UNR), Suipacha 531, Rosario S2002LRK, Argentina.
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13
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Ghiviriga I. Nuclear Magnetic Resonance Method for Measuring Water Solubility of Organic Compounds. Anal Chem 2023; 95:2706-2712. [PMID: 36705621 DOI: 10.1021/acs.analchem.2c03277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Water solubility measurements are required in drug discovery, in toxicological or environmental studies, and in developing industrial processes which employ extractions or crystallizations. The gold-standard shake-flask method is tedious and takes at least 24 h. We developed a nuclear magnetic resonance (NMR) method for automation, which has the same accuracy and solubility range as the shake-flask method, but a measurement can be made faster, since the analysis does not require separation of the phases. Samples of saturated solutions are analyzed in the presence of excess solute, since the NMR spectra do not show signals for the dispersed solids, and they tend to show separate signals for the dissolved and dispersed liquids. Spectra are acquired with water suppression, using a pulse sequence appropriate for quantitation. A sample of water is used as the external reference, and the concentration of the solute is determined using the PULCON relationship. An evaluation of the method in terms of selectivity, accuracy, precision, and limit of quantitation is presented in detail.
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Affiliation(s)
- Ion Ghiviriga
- Center for NMR Spectroscopy, Chemistry Department, University of Florida, Gainesville, Florida32611-7200, United States
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14
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Zadali Asghar S, Kaviani R, Shayanfar A. Solubility of Some Drugs in Aqueous Solutions of Choline Chloride-Based Deep Eutectic Solvent Systems: Experimental Data, Modeling, and the Impact of Solution pH. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e137011. [PMID: 38116558 PMCID: PMC10728849 DOI: 10.5812/ijpr-137011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/21/2023] [Accepted: 05/25/2023] [Indexed: 12/21/2023]
Abstract
Background The solubility of drugs in water and organic solvents is a crucial factor in numerous pharmaceutical processes. In recent years, a new type of solvent called deep eutectic solvents (DESs) has been developed as a useful solvent for drugs. Choline chloride-glycerol/urea (ChCl-G/U) systems are DESs recognized as a novel category of environmentally friendly solvents. One recent application of this type of DES in water is the solubilization of drugs. Objectives This study aimed to investigate the solubility of certain drugs in ChCl-G/U. In addition, the solubilization mechanisms of the DESs studied, and quantitative structure-property relationship (QSPR) models for solubilization were proposed. Methods The solubility of 13 drugs in an aqueous solution of the ChCl-G/U system was investigated using the shake flask method. The study was conducted at 10% and 50% mass fractions of the studied systems. Multiple linear regression models were used to develop mathematical relationships between the solubilization of the studied compounds in the presence of ChCl-G/U + water mixture using QSPR models. Results The solubility of the compounds showed a significant increase upon adding ChCl-G/U to the aqueous solutions. Based on the data obtained, QSPR models were developed using solubilization ratio and structural descriptors. Conclusions The experimental data demonstrates the potential of utilizing ChCl-G/U as a medium to enhance the solubility of poorly soluble drugs in water. Solubilization of solutes in ChCl-G/U + water mixtures could be correlated with the structural properties of drugs. Moreover, the final pH of the solutions in ChCl-U is a critical factor that must be considered when using this system for solubilization.
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Affiliation(s)
- Samira Zadali Asghar
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raha Kaviani
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Shayanfar
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Editorial Office of Pharmaceutical Sciences Journal, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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15
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Xu F, Liu M, Liao Y, Zhou Y, Zhang P, Zeng Y, Liu Z. Improvement of anticancer effect of berberine by salt formation modifications. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154314. [PMID: 35841665 DOI: 10.1016/j.phymed.2022.154314] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/17/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Berberine is a quaternary isoquinoline alkaloid that possesses a significant therapeutic effect on a variety of cancers. However, due to poor bioavailability, an increased dose is often required to achieve therapeutic goals. To improve the activities of natural berberine, most modifications were focused on the positive isoquinoline unit by grafting long aliphatic chains or heterocycles. However, the negative part is ignored. At this point, the strategy of salt formation modifications with short- and medium-chain fatty acids was proposed in this article. PURPOSE Using salt modification to enhance the antitumor activity of berberine and explore the mechanism. METHODS Four short- and medium-chain fatty acid salts of berberine were prepared from berberine hydrochloride by salt formation modification with the sodium salt of butyric, caproic, octanoic, and decanoic acid, respectively. The cytotoxicity of four berberine salts on B16-F10, A549, HepG2, and U373 cancer cell lines was explored. Through cell localization, Mitochondrial membrane potential assay, and Western blotting analysis explored the mechanism of berberine salt-induced apoptosis. Its anticancer activity in vivo was demonstrated by the mouse xenograft model. RESULTS The four berberine fatty acid salts exhibited an enhanced inhibitory effect on B16-F10, A549, HepG2, and U373 cancer cell lines, particularly on B16-F10 cells. Meanwhile, the four berberine fatty acid salts can inhibit the migration of B16-F10 cells. The four berberine fatty acid salts induce cancer cell apoptosis through the mitochondrial pathway, which was confirmed by the mitochondrial colocalization, the decreased mitochondrial membrane potential as well as activation of caspase-3, cytochrome C (Cyt-C), and down-regulated expression of B-cell lymphoma 2 (Bcl-2). Most importantly, the four berberine fatty acid salts inhibited tumor growth in the in vivo B16-F10 melanoma model without generating side effects intraperitoneally. CONCLUSIONS This study revealed that salt formation modification may be an effective strategy to optimize the anticancer property of berberine hydrochloride and demonstrated the four berberine fatty acid salts induced apoptosis through the mitochondrial apoptotic pathway.
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Affiliation(s)
- Fengjiao Xu
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China; Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081, China
| | - Meiyan Liu
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China; Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081, China
| | - Yating Liao
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China; Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081, China
| | - Ya Zhou
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China; Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081, China
| | - Peng Zhang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Youlin Zeng
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China; Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081, China.
| | - Zhonghua Liu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, China
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16
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Guizze F, Serra CHR, Giarolla J. PAMAM Dendrimers: A Review of Methodologies Employed in Biopharmaceutical Classification. J Pharm Sci 2022; 111:2662-2673. [PMID: 35850238 DOI: 10.1016/j.xphs.2022.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 11/08/2022]
Abstract
The oral route is the preferred way of drug administration for most drugs, whose treatment success is directly related to the compound intestinal absorption. This absorption process, in its turn, is influenced by several factors impacting the drug bioavailability, which is extremely dependent on the maximum solubility and permeability. However, optimizing these last two factors, without chemical structural modification, is challenging. Although poly(amidoamine) dendrimers (PAMAM) are an innovative and promising strategy as drug delivery compounds, there are few studies that determine the permeability and solubility of PAMAM-drugs derivatives. Considering this scenario, this paper aimed to carry out a literature review of the last five years concerning biopharmaceutical characterizations of dendrimer delivery systems. In vitro methodologies, such as the Parallel artificial membrane permeability assay (PAMPA) (non-cellular based model) and Caco-2 cells (cellular based model), used for the permeability evaluation in the early stages of drug discovery proved to be the most promising methodologies. As a result, we discussed, for instance, that through the usage of PAMPA it was possible to evaluate the higher capacity for transdermal delivery of DNA of TAT-conjugated PAMAM, when in comparison with unmodified PAMAM dendrimer with a P<0.05. We also presented the importance of choosing the best methods of biopharmaceutical characterization, which will be essential to guarantee the efficacy and safety of the drug candidate.
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Affiliation(s)
- Felipe Guizze
- School of Pharmaceutical Sciences, Department of Pharmacy, University of São Paulo, Avenida Professor Lineu Prestes, 580, 05508-000, São Paulo, Brazil
| | - Cristina Helena Reis Serra
- School of Pharmaceutical Sciences, Department of Pharmacy, University of São Paulo, Avenida Professor Lineu Prestes, 580, 05508-000, São Paulo, Brazil.
| | - Jeanine Giarolla
- School of Pharmaceutical Sciences, Department of Pharmacy, University of São Paulo, Avenida Professor Lineu Prestes, 580, 05508-000, São Paulo, Brazil.
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17
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Villa Nova M, Gan K, Wacker MG. Biopredictive tools for the development of injectable drug products. Expert Opin Drug Deliv 2022; 19:671-684. [PMID: 35603724 DOI: 10.1080/17425247.2022.2081682] [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: 11/04/2022]
Abstract
INTRODUCTION Biopredictive release tests are commonly used in the evaluation of oral medicines. They support decision-making in formulation development and allow predictions of the expected in-vivo performances. So far, there is limited experience in the application of these methodologies to injectable drug products. AREAS COVERED Parenteral drug products cover a variety of dosage forms and administration sites including subcutaneous, intramuscular, and intravenous injections. In this area, developing biopredictive and biorelevant methodologies often confronts us with unique challenges and knowledge gaps. Here, we provide a formulation-centric approach and explain the key considerations and workflow when designing biopredictive assays. Also, we outline the key role of computational methods in achieving clinical relevance and put all considerations into context using liposomal nanomedicines as an example. EXPERT OPINION Biopredictive tools are the need of the hour to exploit the tremendous opportunities of injectable drug products. A growing number of biopharmaceuticals such as peptides, proteins, and nucleic acids require different strategies and a better understanding of the influences on drug absorption. Here, our design strategy must maintain the balance of robustness and complexity required for effective formulation development.
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Affiliation(s)
- Mônica Villa Nova
- State University of Maringá, Department of Pharmacy, Maringá, Paraná, Brazil
| | - Kennard Gan
- National University of Singapore, Department of Pharmacy, Singapore
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18
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Development and Characterization of Eudragit ® EPO-Based Solid Dispersion of Rosuvastatin Calcium to Foresee the Impact on Solubility, Dissolution and Antihyperlipidemic Activity. Pharmaceuticals (Basel) 2022; 15:ph15040492. [PMID: 35455489 PMCID: PMC9025505 DOI: 10.3390/ph15040492] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/01/2022] [Accepted: 04/05/2022] [Indexed: 02/05/2023] Open
Abstract
Poor solubility is the major challenge involved in the formulation development of new chemical entities (NCEs), as more than 40% of NCEs are practically insoluble in water. Solid dispersion (SD) is a promising technology for improving dissolution and, thereby, the bioavailability of poorly soluble drugs. This study investigates the influence of a pH-sensitive acrylate polymer, EPO, on the physicochemical properties of rosuvastatin calcium, an antihyperlipidemic drug. In silico docking was conducted with numerous polymers to predict drug polymer miscibility. The screened-out polymer was used to fabricate the binary SD of RoC in variable ratios using the co-grinding and solvent evaporation methods. The prepared formulations were assessed for physiochemical parameters such as saturation solubility, drug content and in vitro drug release. The optimized formulations were further ruled out using solid-state characterization (FTIR, DSC, XRD and SEM) and in vitro cytotoxicity. The results revealed that all SDs profoundly increased solubility as well as drug release. However, the formulation RSE-2, with a remarkable 71.88-fold increase in solubility, presented 92% of drug release in the initial 5 min. The molecular interaction studied using FTIR, XRD, DSC and SEM analysis evidenced the improvement of in vitro dissolution. The enhancement in solubility of RoC may be important for the modulation of the dyslipidemia response. Therefore, pharmacodynamic activity was conducted for optimized formulations. Our findings suggested an ameliorative effect of RSE-2 in dyslipidemia and its associated complications. Moreover, RSE-2 exhibited nonexistence of cytotoxicity against human liver cell lines. Convincingly, this study demonstrates that SD of RoC can be successfully fabricated by EPO, and have all the characteristics that are favourable for superior dissolution and better therapeutic response to the drug.
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Docking-guided rational engineering of a macrolide glycosyltransferase glycodiversifies epothilone B. Commun Biol 2022; 5:100. [PMID: 35087210 PMCID: PMC8795383 DOI: 10.1038/s42003-022-03047-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/06/2022] [Indexed: 11/09/2022] Open
Abstract
Glycosyltransferases typically display acceptor substrate flexibility but more stringent donor specificity. BsGT-1 is a highly effective glycosyltransferase to glycosylate macrolides, including epothilones, promising antitumor compounds. Here, we show that BsGT-1 has three major regions significantly influencing the glycodiversification of epothilone B based on structural molecular docking, "hot spots" alanine scanning, and site saturation mutagenesis. Mutations in the PSPG-like motif region and the C2 loop region are more likely to expand donor preference; mutations of the flexible N3 loop region located at the mouth of the substrate-binding cavity produce novel epothilone oligosaccharides. These "hot spots" also functioned in homologues of BsGT-1. The glycosides showed significantly enhanced water solubility and decreased cytotoxicity, although the glycosyl appendages of epothilone B also reduced drug permeability and attenuated antitumor efficacy. This study laid a foundation for the rational engineering of other GTs to synthesize valuable small molecules.
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20
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Dobrynin MV, Mongilev IV, Lezov AA, Perevyazko I, Tolstoy PM, Anufrikov YA, Shasherina AY, Vlasov PS, Kukushkin VY, Islamova RM. Block-copolymeric maltodextrin-based amphiphilic glycosilicones as surface-active systems. NEW J CHEM 2022. [DOI: 10.1039/d2nj02285k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthetic strategy that includes protection–modification–deprotection consequence was successfully developed to obtain novel water-soluble, amphiphilic, surface-active maltodextrin-based glycosilicones.
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Affiliation(s)
- Mikhail V. Dobrynin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Ilya V. Mongilev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Alexey A. Lezov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Igor Perevyazko
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Peter M. Tolstoy
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Yurii A. Anufrikov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Anna Yu. Shasherina
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Petr S. Vlasov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg, 199004, Russian Federation
| | - Regina M. Islamova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034, Saint Petersburg, Russian Federation
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg, 199004, Russian Federation
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Design, synthesis and biological evaluation of novel aminopyrazole- and 7-azaindole-based Nek1 inhibitors and their effects on zebrafish kidney development. Bioorg Med Chem Lett 2021; 53:128418. [PMID: 34715306 DOI: 10.1016/j.bmcl.2021.128418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 01/17/2023]
Abstract
NIMA-related protein kinase Nek1 is crucially involved in cell cycle regulation, DNA repair and microtubule regulation and dysfunctions of Nek1 play key roles in amyotrophic lateral sclerosis (ALS), polycystic kidney disease (PKD) and several types of radiotherapy resistant cancer. Targeting of Nek1 could reveal a new class of radiosensitizing substances and provide useful tools to better understand the aforementioned diseases. In this report we explore substituted aminopyrazoles and 7-azaindoles as potent inhibitors for the Nek1 kinase domain and examine their effect on kidney organogenesis in Danio rerio.
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Midecamycin Is Inactivated by Several Different Sugar Moieties at Its Inactivation Site. Int J Mol Sci 2021; 22:ijms222312636. [PMID: 34884439 PMCID: PMC8657839 DOI: 10.3390/ijms222312636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/20/2021] [Accepted: 11/21/2021] [Indexed: 11/17/2022] Open
Abstract
Glycosylation inactivation is one of the important macrolide resistance mechanisms. The accumulated evidences attributed glycosylation inactivation to a glucosylation modification at the inactivation sites of macrolides. Whether other glycosylation modifications lead to macrolides inactivation is unclear. Herein, we demonstrated that varied glycosylation modifications could cause inactivation of midecamycin, a 16-membered macrolide antibiotic used clinically and agriculturally. Specifically, an actinomycetic glycosyltransferase (GT) OleD was selected for its glycodiversification capacity towards midecamycin. OleD was demonstrated to recognize UDP-D-glucose, UDP-D-xylose, UDP-galactose, UDP-rhamnose and UDP-N-acetylglucosamine to yield corresponding midecamycin 2'-O-glycosides, most of which displayed low yields. Protein engineering of OleD was thus performed to improve its conversions towards sugar donors. Q327F was the most favorable variant with seven times the conversion enhancement towards UDP-N-acetylglucosamine. Likewise, Q327A exhibited 30% conversion enhancement towards UDP-D-xylose. Potent biocatalysts for midecamycin glycosylation were thus obtained through protein engineering. Wild OleD, Q327F and Q327A were used as biocatalysts for scale-up preparation of midecamycin 2'-O-glucopyranoside, midecamycin 2'-O-GlcNAc and midecamycin 2'-O-xylopyranoside. In contrast to midecamycin, these midecamycin 2'-O-glycosides displayed no antimicrobial activities. These evidences suggested that besides glucosylation, other glycosylation patterns also could inactivate midecamycin, providing a new inactivation mechanism for midecamycin resistance. Cumulatively, glycosylation inactivation of midecamycin was independent of the type of attached sugar moieties at its inactivation site.
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Vertzoni M, Alsenz J, Augustijns P, Bauer-Brandl A, Bergström C, Brouwers J, Müllerz A, Perlovich G, Saal C, Sugano K, Reppas C. UNGAP best practice for improving solubility data quality of orally administered drugs. Eur J Pharm Sci 2021; 168:106043. [PMID: 34662708 DOI: 10.1016/j.ejps.2021.106043] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/03/2022]
Abstract
An important goal of the European Cooperation in Science and Technology (COST) Action UNGAP (UNderstanding Gastrointestinal Absorption-related Processes, www.ungap.eu) is to improve standardization of methods relating to the study of oral drug absorption. Solubility is a general term that refers to the maximum achievable concentration of a compound dissolved in a liquid medium. For orally administered drugs, relevant information on drug properties is crucial during drug (product) development and at the regulatory level. Collection of reliable and reproducible solubility data requires careful application and understanding of the limitations of the selected experimental method. In addition, the purity of a compound and its solid state form, as well as experimental parameters such as temperature of experimentation, media related factors, and sample handling procedures can affect data quality. In this paper, an international consensus developed by the COST UNGAP network on recommendations for collecting high quality solubility data for the development of orally administered drugs is proposed.
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Affiliation(s)
- M Vertzoni
- National and Kapodistrian University of Athens, Department of Pharmacy, Zografou, Greece
| | - J Alsenz
- Roche Pharmaceutical Research & Early Development, Basel, Switzerland
| | - P Augustijns
- KU Leuven, Drug Delivery and Disposition, Leuven, Belgium
| | - A Bauer-Brandl
- University of Southern Denmark, Department of Physics Chemistry and Pharmacy, Odense, Denmark
| | - Cas Bergström
- Uppsala University, Department of Pharmacy, Uppsala, Sweden
| | - J Brouwers
- KU Leuven, Drug Delivery and Disposition, Leuven, Belgium
| | - A Müllerz
- University of Copenhagen, Department of Pharmacy, Copenhagen, Denmark
| | - G Perlovich
- The Russian Academy of Sciences, Institute of Solution Chemistry, Department of Physical Chemistry of Drugs, Ivanovo, Russia
| | - C Saal
- Merck KGaA, Analytics Healthcare, Darmstadt, Germany
| | - K Sugano
- Ritsumeikan University, College of Pharmaceutical Sciences, Kusatsu, Japan
| | - C Reppas
- National and Kapodistrian University of Athens, Department of Pharmacy, Zografou, Greece.
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Wang Z, Zalloum WA, Wang W, Jiang X, De Clercq E, Pannecouque C, Kang D, Zhan P, Liu X. Discovery of Novel Dihydrothiopyrano[4,3- d]pyrimidine Derivatives as Potent HIV-1 NNRTIs with Significantly Reduced hERG Inhibitory Activity and Improved Resistance Profiles. J Med Chem 2021; 64:13658-13675. [PMID: 34432448 DOI: 10.1021/acs.jmedchem.1c01015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Enlightened by the available structural biology information, a novel series of dihydrothiopyrano[4,3-d]pyrimidine derivatives were rationally designed via scaffold hopping and molecular hybridization strategies. Notably, compound 20a yielded exceptionally potent antiviral activities (EC50 = 4.44-54.5 nM) against various HIV-1 strains and improved resistance profiles (RF = 0.5-5.6) compared to etravirine and rilpivirine. Meanwhile, 20a exhibited reduced cytotoxicity (CC50 = 284 μM) and higher SI values (SI = 5210-63992). Molecular dynamics simulations were performed to rationalize the distinct resistance profiles. Besides, 20a displayed better solubility (sol. = 12.8 μg/mL) and no significant inhibition of the main CYP enzymes. Furthermore, 20a was characterized for prominent metabolic stability and in vivo safety properties. Most importantly, the hERG inhibition profile of 20a (IC50 = 19.84 μM) was a remarkable improvement. Overall, 20a possesses huge potential to serve as a promising drug candidate due to its excellent potency, low toxicity, and favorable drug-like properties.
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Affiliation(s)
- Zhao Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
| | - Waleed A Zalloum
- Department of Pharmacy, Faculty of Health Science, American University of Madaba, P.O. Box 2882, Amman 11821, Jordan
| | - Wenbo Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
| | - Xiangyi Jiang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
| | - Erik De Clercq
- Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, K. U. Leuven, Herestraat 49 Postbus 1043 (09.A097), Leuven B-3000, Belgium
| | - Christophe Pannecouque
- Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, K. U. Leuven, Herestraat 49 Postbus 1043 (09.A097), Leuven B-3000, Belgium
| | - Dongwei Kang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
- China-Belgium Collaborative Research Center for Innovative Antiviral Drugs of Shandong Province, 44 West Culture Road, Jinan, Shandong 250012, PR China
| | - Peng Zhan
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
- China-Belgium Collaborative Research Center for Innovative Antiviral Drugs of Shandong Province, 44 West Culture Road, Jinan, Shandong 250012, PR China
| | - Xinyong Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Culture Road, Jinan, Shandong 250012, PR China
- China-Belgium Collaborative Research Center for Innovative Antiviral Drugs of Shandong Province, 44 West Culture Road, Jinan, Shandong 250012, PR China
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Algahtani MS, Ahmad MZ, Shaikh IA, Abdel-Wahab BA, Nourein IH, Ahmad J. Thymoquinone Loaded Topical Nanoemulgel for Wound Healing: Formulation Design and In-Vivo Evaluation. Molecules 2021; 26:3863. [PMID: 34202733 PMCID: PMC8270244 DOI: 10.3390/molecules26133863] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 12/05/2022] Open
Abstract
Thymoquinone is a natural bioactive with significant therapeutic activity against multiple ailments including wound healing. The poor aqueous solubility and low skin permeability limit its therapeutic efficacy. The present investigation aimed to improve the biopharmaceutical attributes of thymoquinone to enhance its topical efficacy in wound healing. A nanoemulsion-based hydrogel system was designed and characterized as a nanotechnology-mediated drug delivery approach to improve the therapeutic efficacy of thymoquinone, utilizing a high-energy emulsification technique. The black seed oil, as a natural home of thymoquinone, was utilized to improve the drug loading capacity of the developed nanoemulsion system and reduced the oil droplet size to <100 nm through ultrasonication. The influence of formulation composition, and the ultrasonication process conditions, were investigated on the mean globule size and polydispersity index of the generated nanoemulsion. Irrespective of surfactant/co-surfactant ratio and % concentration of surfactant/co-surfactant mixture, the ultrasonication time had a significant (p < 0.05) influence on the mean droplet size and polydispersity index of the generated nanoemulsion. The developed nanoemulgel system of thymoquinone demonstrated the pseudoplastic behavior with thixotropic properties, and this behavior is desirable for topical application. The nanoemulgel system of thymoquinone exhibited significant enhancement (p < 0.05) in skin penetrability and deposition characteristics after topical administration compared to the conventional hydrogel system. The developed nanoemulgel system of thymoquinone exhibited quicker and early healing in wounded Wistar rats compared to the conventional hydrogel of thymoquinone, while showing comparable healing efficacy with respect to marketed silver sulfadiazine (1%) cream. Furthermore, histopathology analysis of animals treated with a developed formulation system demonstrated the formation of the thick epidermal layer, papillary dermis along with the presence of extensive and organized collagen fibers in newly healed tissues. The outcome of this investigation signifies that topical delivery of thymoquinone through nanoemulgel system is a promising candidate which accelerates the process of wound healing in preclinical study.
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Affiliation(s)
- Mohammed S. Algahtani
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia; (M.S.A.); (M.Z.A.)
| | - Mohammad Zaki Ahmad
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia; (M.S.A.); (M.Z.A.)
| | - Ibrahim Ahmed Shaikh
- Department of Pharmacology, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia; (I.A.S.); (B.A.A.-W.)
| | - Basel A. Abdel-Wahab
- Department of Pharmacology, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia; (I.A.S.); (B.A.A.-W.)
| | - Ihab Hamed Nourein
- Department of Clinical Laboratory (Histopathology and Cytology), College of Applied Medical Sciences, Najran University, Najran 11001, Saudi Arabia;
| | - Javed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia; (M.S.A.); (M.Z.A.)
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26
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Sharma S, Varsha KK, Ray U, Siddiqua H, Jose AE, Muninarasimaiah S, Raghavan SC, Choudhary B. Acute toxicity analysis of an inhibitor of BCL2, Disarib, in rats. Sci Rep 2021; 11:9982. [PMID: 33976278 PMCID: PMC8113538 DOI: 10.1038/s41598-021-89387-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/19/2021] [Indexed: 11/09/2022] Open
Abstract
Apoptosis or programmed cell death is a highly regulated process, which eliminates unwanted and damaged cells. Inhibition of apoptosis is a hallmark of cancer cells. BCL2 family proteins are known to play a vital role in the regulation of apoptosis. Overexpression of BCL2, an antiapoptotic protein, provides the advantage of prolonged survival to cancer cells. Over the years, several BCL2 inhibitors have been investigated extensively for their anticancer potential. However, most of them were abolished before clinical use due to their side effects. Previously, we had identified and characterized a novel BCL2 inhibitor, Disarib, with the potential to eliminate tumor cells in a BCL2 specific manner leading to reduction in tumor burden in multiple mouse models. Notably, a head-to-head comparison of Disarib to ABT199, the only FDA approved BCL2 inhibitor revealed that Disarib is as potent as ABT199. Recent studies using mice revealed that Disarib did not invoke significant side effects in mice. In the present study, we have investigated the acute toxicity of Disarib in Wistar rats. The bioavailability studies following exposure of Disarib in Wistar rats revealed its maximum availability in serum at 24 h following oral administration. Acute toxicity analysis revealed that even a dose as high as 2000 mg/kg of Disarib did not cause significant toxicity in rats. There was no significant variation in blood parameters or kidney and liver functions following administration of Disarib. Histological analysis of different tissues from Disarib treated groups revealed standard architecture with no observable cellular damage. Importantly, exposure to Diasrib did not result in genotoxicity as determined by micronucleus assay. Further, solubility assays revealed that besides DMSO, Disarib is also soluble in alcohol. While the high acidic condition can increase the solubility of Disarib, even a lower percentage of alcohol with acidic conditions can improve its solubility. Thus, the toxicological profile in the current study revealed no significant side effects when Disarib was administered orally to rats.
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Affiliation(s)
- Shivangi Sharma
- Institute of Bioinformatics and Applied Biotechnology, Electronics City, Bangalore, 560100, India
- Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India
- Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | | | - Ujjayinee Ray
- Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Humaira Siddiqua
- Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India
| | | | | | - Sathees C Raghavan
- Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India.
| | - Bibha Choudhary
- Institute of Bioinformatics and Applied Biotechnology, Electronics City, Bangalore, 560100, India.
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27
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López Mármol Á, Denninger A, Touzet A, Dauer K, Becker T, Pöstges F, Pellequer Y, Lamprecht A, Wagner KG. The relevance of supersaturation and solubilization in the gastrointestinal tract for oral bioavailability: An in vitro vs. in vivo approach. Int J Pharm 2021; 603:120648. [PMID: 33915180 DOI: 10.1016/j.ijpharm.2021.120648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 01/19/2023]
Abstract
The influence of supersaturation and solubilization on oral absorption was assessed independently from the dissolution process for the non-formulated model drugs celecoxib and telmisartan. In vitro, physicochemical characterization and biphasic dissolution were used to characterize the supersaturation and solubilization effects of three water soluble polymers (copovidone, methylcellulose and Soluplus®) on the drugs. While celecoxib precipitated in a crystalline form resulting in pronounced stabilization of supersaturation, telmisartan precipitated as a highly energetic amorphous form and the potential of the polymers to enhance its solubility was subsequently, limited. In vivo, for the crystalline precipitating celecoxib, supersaturation and solubilization increased its oral bioavailability up to 10-fold. On the contrary, the amorphous precipitating telmisartan did not benefit from the limited stabilization in terms of oral exposure. Amongst all investigated in vitro tests the biphasic dissolution test was the most predictive in relation to supersaturation. However, for the potential micellar solubilization and the respective impact in the aqueous/organic interface, prediction accuracy of the biphasic dissolution test was limited in combination with Soluplus®. Despite the hetergeneous micellar distribution in vitro and permeation in vivo, the biphasic approach could clearly show the supersaturation potential on bioavailability (BA) for celecoxib on the one hand and the inferiority of supersaturation on BA for telmisartan.
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Affiliation(s)
- Álvaro López Mármol
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Alexander Denninger
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Antoine Touzet
- PEPITE EA4267, University of Bourgogne Franche-Comté, 19 Rue Ambroise Paré, 25030 Besançon Cedex, France
| | - Katharina Dauer
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Tim Becker
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Florian Pöstges
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Yann Pellequer
- PEPITE EA4267, University of Bourgogne Franche-Comté, 19 Rue Ambroise Paré, 25030 Besançon Cedex, France
| | - Alf Lamprecht
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany; PEPITE EA4267, University of Bourgogne Franche-Comté, 19 Rue Ambroise Paré, 25030 Besançon Cedex, France
| | - Karl G Wagner
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany.
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28
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Reversed-phase chromatographic separation and downstream precipitation of lupane- and oleanane-type triterpenoids: Experiments and modeling based on the method of moments. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Bender A, Cortes-Ciriano I. Artificial intelligence in drug discovery: what is realistic, what are illusions? Part 2: a discussion of chemical and biological data. Drug Discov Today 2021; 26:1040-1052. [PMID: 33508423 PMCID: PMC8132984 DOI: 10.1016/j.drudis.2020.11.037] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/07/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022]
Abstract
'Artificial Intelligence' (AI) has recently had a profound impact on areas such as image and speech recognition, and this progress has already translated into practical applications. However, in the drug discovery field, such advances remains scarce, and one of the reasons is intrinsic to the data used. In this review, we discuss aspects of, and differences in, data from different domains, namely the image, speech, chemical, and biological domains, the amounts of data available, and how relevant they are to drug discovery. Improvements in the future are needed with respect to our understanding of biological systems, and the subsequent generation of practically relevant data in sufficient quantities, to truly advance the field of AI in drug discovery, to enable the discovery of novel chemistry, with novel modes of action, which shows desirable efficacy and safety in the clinic.
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Affiliation(s)
- Andreas Bender
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK; Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK.
| | - Isidro Cortes-Ciriano
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, Cambridge, CB10 1SD, UK.
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Zhang P, Zhang L, Yue XJ, Tang YJ, Wu C, Li YZ. Effects of glycosylation on the bioactivity of rapamycin. Appl Microbiol Biotechnol 2020; 104:9125-9134. [PMID: 32940736 DOI: 10.1007/s00253-020-10895-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/30/2020] [Accepted: 09/05/2020] [Indexed: 12/01/2022]
Abstract
The macrolactone rapamycin (RAP) presents a broad range of bioactivities, but its clinical applications are compromised due to the poor water solubility and low bioavailability, which could probably be overcome by glycosylation. In this study, we tested a set of promiscuous glycosyltransferases (GTs) to modify rapamycin with four different sugar donors. BsGT-1 displayed the best glycosylation activity with a preference for UDP-glucose, and the glycosylation happened at C-28 or C-40 of rapamycin, producing rapamycin-40-O-β-D-glucoside (RG1), and two new compounds rapamycin-28-O-β-D-glucoside (RG2) and rapamycin-28,40-O-β-D-diglucoside (RG3). The glycosylation remarkably improved water solubility and almost completely abolished cytotoxicity but simultaneously attenuated the antifungal, antitumor, and immunosuppression bioactivities of rapamycin. We found the glycosylation at C-40 had less effect on the bioactivities than that at C-28. The molecular docking analysis revealed that the glycosylation, especially the glycosylation at C-28, weakened the hydrophobic and hydrogen bonding contacts between the rapamycin glucosides and the binding proteins: the FK506-binding protein (FKBP12) and the FKBP12-rapamycin binding (FRB) domain. This study highlights a succinct approach to expand the chemical diversity of the therapeutically important molecule rapamycin by using promiscuous glycosyltransferases. Moreover, the fact that glycosyl moieties at different positions of rapamycin affect bioactivity to different extents inspires further glycosylation engineering to improve properties of rapamycin. KEY POINTS: • Rapamycin was glycosylated efficiently by some promiscuous GTs. • Glycosylation improved water solubility, attenuated cytotoxicity, and bioactivities. • Glycosylation affected the interactions between ligand and binding proteins.
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Affiliation(s)
- Peng Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Lijuan Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Xin-Jing Yue
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Ya-Jie Tang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China.
| | - Yue-Zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China.
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31
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Lucero-Borja D, Subirats X, Barbas R, Prohens R, Avdeef A, Ràfols C. Potentiometric CheqSol and standardized shake-flask solubility methods are complimentary tools in physicochemical profiling. Eur J Pharm Sci 2020; 148:105305. [PMID: 32184154 DOI: 10.1016/j.ejps.2020.105305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/04/2020] [Accepted: 03/13/2020] [Indexed: 11/30/2022]
Abstract
The solubility of three drugs (glimepiride, pioglitazone, sibutramine) with different acid/base properties and expected supersaturation behavior was examined in detail using the shake-flask (SF) and potentiometric (CheqSol) methods. Both uncharged (free) species and hydrochloride salts were used as starting materials. On the one hand, the SF method provided information about the thermodynamic solubility at any pH value, including the counterion-dependent solubility of ionic species. Additionally, this method easily allowed the identification of the solid phase in equilibrated solutions by powder X-ray diffraction, and the detection and quantification of aggregation and complexation reactions. On the other hand, CheqSol method permitted the measurement of the equilibrium solubility of neutral species, the observation of changes in solid forms, and the extent and duration of supersaturation (kinetic solubility) for "chaser" compounds. The combined information from both methods gave an accurate picture of the solubility behavior of the studied drugs.
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Affiliation(s)
- Diego Lucero-Borja
- Institute of Biomedicine (IBUB) and Department of Chemical Engineering and Analytical Chemistry, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Xavier Subirats
- Institute of Biomedicine (IBUB) and Department of Chemical Engineering and Analytical Chemistry, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Rafael Barbas
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain.
| | - Rafel Prohens
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain.
| | - Alex Avdeef
- in-ADME Research, 1732 First Avenue #102, New York, NY 10128, USA.
| | - Clara Ràfols
- Institute of Biomedicine (IBUB) and Department of Chemical Engineering and Analytical Chemistry, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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