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Motawea A, Maria SN, Maria DN, Jablonski MM, Ibrahim MM. Genistein transfersome-embedded topical delivery system for skin melanoma treatment: in vitro and ex vivo evaluations. Drug Deliv 2024; 31:2372277. [PMID: 38952058 PMCID: PMC11221477 DOI: 10.1080/10717544.2024.2372277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/11/2024] [Indexed: 07/03/2024] Open
Abstract
Skin melanoma is considered the most dangerous form of skin cancer due to its association with high risk of metastasis, high mortality rate and high resistance to different treatment options. Genistein is a natural isoflavonoid with known chemotherapeutic activity. Unfortunately, it has low bioavailability due to its poor aqueous solubility and excessive metabolism. In the current study, genistein was incorporated into transferosomal hydrogel to improve its bioavailability. The prepared transferosomal formulations were characterized regarding: particle size; polydispersity index; zeta potential; encapsulation efficiency; TEM; FTIR; DSC; XRD; in vitro drug release; viscosity; pH; ex vivo anti-tumor activity on 3D skin melanoma spheroids and 1-year stability study at different storage temperatures. The optimized formulation has high encapsulation efficiency with an excellent particle size that will facilitate its penetration through the skin. The transfersomes have a spherical shape with sustained drug release profile. The anti-tumor activity evaluation of genistein transfersome revealed that genistein is a potent chemotherapeutic agent with enhanced penetration ability through the melanoma spheroids when incorporated into transfersomes. Stability study results demonstrate the high physical and chemical stability of our formulations. All these outcomes provide evidence that our genistein transferosomal hydrogel is a promising treatment option for skin melanoma.
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Affiliation(s)
- Amira Motawea
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Sara N. Maria
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Doaa N. Maria
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Monica M. Jablonski
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mohamed Moustafa Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN, USA
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2
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Jadhav SA, Raval AJ, Jariwala AB, Engineer CB, Tailor J, Patravale VB. In vitro drug release profiling of Sirolimus polymeric microparticles coated long-acting stents. Int J Pharm 2024; 664:124572. [PMID: 39159857 DOI: 10.1016/j.ijpharm.2024.124572] [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: 05/01/2024] [Revised: 08/08/2024] [Accepted: 08/08/2024] [Indexed: 08/21/2024]
Abstract
In the realm of arterial disease interventions, drug-eluting stents (DES) have become a vital therapeutic choice in preventing atherosclerotic plaque formation and restenosis and facilitating vessel healing. Sirolimus-encapsulated poly Lactic-co-Glycolic acid (PLGA) Microparticles (MPs) were developed using solvent evaporation. MPs were freeze-dried with a cryoprotectant and coated on the stent surface using an efficient and reproducible nitrogen-assisted spray coating technique. The MPs displayed a uniform distribution particle size of 4.38 ± 1.1 μm, span value of 0.88 ± 0.02, coating mass transfer efficiency of 13.45 ± 1.1 % on the stent, and a coating time of ≤ 2 min per stent. Post sterilization, the particle size and morphology of the coated stents remained unchanged. Accelerated in vitro drug release profiles were evaluated under different conditions, indicating significant influences based on dissolution methods ranging from 28.2 %±4.3 %, 42.5 %±5.3 %, 76.6 %±4.7 %, and 84.25 %±3.1 % for dialysis bag (DB), vessel simulating flow-through cell (vFTC), flow-through cell (FTC), and sample and separate (SS) technique respectively for 48 h. The drug release mechanism from the coated stents is governed by the combination of the Korsmeyer Peppas and Higuchi models. The developed dissolution method exhibited discriminative effectiveness when evaluated with critical formulation attributes and process parameter variations. The 48 h accelerated drug release studies correlated well with the 6-month real-time release rate with an R2 value of 0.9142 and Pearson's R2 of 0.9561. Ex-vivo studies demonstrated the permeation of MPs into artery tissues. Stability studies confirmed that MPs coated stents maintained desired properties at 4 °C and 30 °C/65 % RH for 6 months. Overall, these findings contribute to advancing stent technology, suggesting the potential for improvement of arterial interventions and enhanced patient outcomes.
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Affiliation(s)
- Sarika A Jadhav
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India
| | - Ankur J Raval
- Sahajanand Medical Technologies Limited, Gujarat 395004, India
| | | | | | - Jaynish Tailor
- Sahajanand Medical Technologies Limited, Gujarat 395004, India
| | - Vandana B Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India.
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3
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Wang SQ, Zhao X, Zhang LJ, Zhao YM, Chen L, Zhang JL, Wang BC, Tang S, Yuan T, Yuan Y, Zhang M, Lee HK, Shi HW. Discrimination of polysorbate 20 by high-performance liquid chromatography-charged aerosol detection and characterization for components by expanding compound database and library. J Pharm Anal 2024; 14:100929. [PMID: 38799234 PMCID: PMC11126531 DOI: 10.1016/j.jpha.2023.12.019] [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: 09/14/2023] [Revised: 11/27/2023] [Accepted: 12/28/2023] [Indexed: 05/29/2024] Open
Abstract
Analyzing polysorbate 20 (PS20) composition and the impact of each component on stability and safety is crucial due to formulation variations and individual tolerance. The similar structures and polarities of PS20 components make accurate separation, identification, and quantification challenging. In this work, a high-resolution quantitative method was developed using single-dimensional high-performance liquid chromatography (HPLC) with charged aerosol detection (CAD) to separate 18 key components with multiple esters. The separated components were characterized by ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) with an identical gradient as the HPLC-CAD analysis. The polysorbate compound database and library were expanded over 7-time compared to the commercial database. The method investigated differences in PS20 samples from various origins and grades for different dosage forms to evaluate the composition-process relationship. UHPLC-Q-TOF-MS identified 1329 to 1511 compounds in 4 batches of PS20 from different sources. The method observed the impact of 4 degradation conditions on peak components, identifying stable components and their tendencies to change. HPLC-CAD and UHPLC-Q-TOF-MS results provided insights into fingerprint differences, distinguishing quasi products.
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Affiliation(s)
- Shi-Qi Wang
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211112, China
| | - Xun Zhao
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
| | - Li-Jun Zhang
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211112, China
| | - Yue-Mei Zhao
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210046, China
| | - Lei Chen
- Chinese Pharmacopoeia Commission, Beijing, 100061, China
| | - Jin-Lin Zhang
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
| | - Bao-Cheng Wang
- Nanjing Well Pharmaceutical Group Co., Ltd., Nanjing, 210018, China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, China
| | - Tom Yuan
- University of Massachusetts Amherst, Amherst, 01003, USA
| | - Yaozuo Yuan
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
| | - Mei Zhang
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
| | - Hian Kee Lee
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, China
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Hai-Wei Shi
- Jiangsu Institute for Food and Drug Control, Nanjing, 210019, China
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4
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Lee JY, Tan LW, Lee KV, Beh KP, Goh CF. Effects of polyol and surfactant plasticisers on lyophilised rice starch wafers for buccal drug delivery. Int J Biol Macromol 2024; 261:129935. [PMID: 38309389 DOI: 10.1016/j.ijbiomac.2024.129935] [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: 12/02/2023] [Revised: 01/05/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024]
Abstract
Rice starch is a promising biopolymer for buccal formulations but typical oven drying may promote starch retrogradation that affects mechanical properties. Hence, lyophilisation was proposed here to improve starch product's stability. This study aims to investigate the effects of plasticisers (sorbitol and Tween® 80, T80) on the characteristics and drug release profiles of lyophilised rice starch wafers incorporated with propranolol hydrochloride. The wafers were prepared by lyophilising starch mixture (5%w/v) with plasticiser (0.2 and 0.3 g/g) and drug (10, 20, 30%w/w). Control wafers exhibited loose layers with rough wrinkled surface. Sorbitol resulted in a dense structure with higher puncture strength (PS) but lower water absorption capacity (WAC) while T80 loosened the flakes that reduced PS and increased WAC. Drug inclusion decreased PS and increased WAC of unplasticised wafers. T80-plasticised wafers with drug had a lower PS and higher WAC than sorbitol-plasticised wafers. Particularly, T80-plasticised wafers achieved outstandingly high PS and the lowest WAC at 30%w/w drug. Drug dissolution of wafers relied mainly on the drug crystallinity and WAC at 10 and 30%w/w drug. Plasticisers reduced and increased drug dissolution at 10 and 20%w/w drug, respectively. This study highlights the potential of lyophilisation in preparing rice starch wafers for buccal delivery.
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Affiliation(s)
- Jing Yi Lee
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Li Wen Tan
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Kay Vien Lee
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Khi Poay Beh
- School of Physics, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Choon Fu Goh
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
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5
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A new method for evaluating sirolimus actual release kinetics of degradable polymer matrix via numerical convolution. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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6
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Khare P, Chogale MM, Kakade P, Patravale VB. Gellan gum-based in situ gelling ophthalmic nanosuspension of Posaconazole. Drug Deliv Transl Res 2022; 12:2920-2935. [PMID: 35538191 PMCID: PMC9089292 DOI: 10.1007/s13346-022-01155-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2022] [Indexed: 12/16/2022]
Abstract
The formulation and delivery of highly hydrophobic drugs in an optimized dosage form is challenging to formulation scientists. Posaconazole has shown promising action in case studies against fungal keratitis. Biological macromolecules like gellan gum would aid in enhancing the availability of such drugs by increasing the contact time of the formulation. Herein, we propose a transmucosal ocular delivery system of Posaconazole by developing a gellan gum-based in situ gelling nanosuspension. The HPLC method for Posaconazole was developed and validated as per ICH guidelines. The nanosuspension was prepared by microfluidization and optimized by Quality by Design. The gellan gum concentration selected was 0.4% w/v based on the viscosity and mucoadhesion measurements. A greater zone of inhibition of ~ 15 mm was observed for the prepared nanosuspension as compared to ~ 11 mm for the marketed itraconazole nanosuspension. A potential irritancy score of 0.85, considered to be non-irritant, was observed for the developed nanosuspension. Higher drug release of ~ 35% was noted for the nanosuspension compared to about ~ 10% for the coarse suspension. Ex vivo corneal retention studies on excised goat cornea demonstrated ~ 70% drug retention in the tissue. Graphical abstract depicting the central hypothesis of the work.
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Affiliation(s)
- Purva Khare
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Manasi M. Chogale
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Pratik Kakade
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
| | - Vandana B. Patravale
- Institute of Chemical Technology, Department of Pharmaceutical Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai-400019 Maharashtra India
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7
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Development and Optimization of Nigella sativa Nanoemulsion Loaded with Pioglitazone for Hypoglycemic Effect. Polymers (Basel) 2022; 14:polym14153021. [PMID: 35893989 PMCID: PMC9332742 DOI: 10.3390/polym14153021] [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: 06/04/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022] Open
Abstract
Diabetes mellitus (DM) is a metabolic disorder associated with an increased blood glucose level. The world health burden of DM has increased as a result of numerous causes that necessitates suitable treatment. Pioglitazone (PGZ) is a generally prescribed medication for managing type II diabetes. However, its low solubility creates complications for its formulation. Therefore, the aim of the current study was to incorporate PGZ into a nanoemulsion (NE) formulation prepared with Nigella sativa oil (NSO) to boost the action of PGZ. To our knowledge, no previous study has addressed the combination and synergistic effect of PGZ and NSO as a hypoglycemic NE formulation intended for oral administration. An experiment was designed to test several PGZ-loaded NE formulations, varying factors such as NSO, surfactant and co-surfactant concentrations. These factors were investigated for their influence on responses including particle size and in vitro release. An optimized PGZ-loaded NE was selected and examined for its morphology, kinetic activity and stability. Further, the anti-diabetic effect of the optimized formulation was evaluated using diabetically induced rats. The optimized formula exhibited a good particle size of 167.1 nm and in vitro release of 89.5%. A kinetic study revealed that the drug release followed the Korsmeyer–Peppas mechanism. Additionally, the PGZ-loaded NE formulation was found to be stable, showing non-significant variation in the evaluated parameters when stored at 4 and 25 °C for a period of 3 months. In vivo investigation of the PGZ-loaded NE formulation showed a significant reduction in blood glucose level, which appeared to be enhanced by the presence of NSO. In conclusion, NS-NE could be a promising nanocarrier for enhancing the hypoglycemic effect of PGZ.
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8
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Bhattacharya S, Sen D, Bhattacharjee C. Strategic development to stabilize bioactive diallyl thiosulfinate by pH responsive non ionic micelle carrier system. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.05.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Controlled Drug Release of Smart Magnetic Self-Assembled Micelle, Kinetics and Transport Mechanisms. J Pharm Sci 2022; 111:2378-2388. [DOI: 10.1016/j.xphs.2022.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 11/22/2022]
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10
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Cyphert EL, Kanagasegar N, Zhang N, Learn GD, von Recum HA. PMMA Bone Cement Composite Functions as an Adjuvant Chemotherapeutic Platform for Localized and Multi-Window Release During Bone Reconstruction. Macromol Biosci 2022; 22:e2100415. [PMID: 35113499 DOI: 10.1002/mabi.202100415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/06/2022] [Indexed: 11/10/2022]
Abstract
Primary bone tumor resections often result in critical size defects, which then necessitate challenging clinical management approaches to reconstruct. One such intervention is the Masquelet technique, in which poly(methyl methacrylate) (PMMA) bone cement is placed as a spacer temporarily while adjuvant chemotherapeutics are administered systemically. The spacer is later removed and replaced with bone autograft. Local recurrence remains an important and devastating problem, therefore, a system capable of locally delivering chemotherapeutics would present unique advantages. In this work, a refillable chemotherapeutic (doxorubicin, DOX) delivery platform comprised of PMMA bone cement and insoluble γ-cyclodextrin (γ-CD) polymeric microparticles is developed and explored towards application as a temporary adjuvant chemotherapeutic spacer. The system is characterized for porosity, mechanical strength, DOX filling and refilling capacity, elution kinetics, and cytotoxicity. Since residual chemotherapeutics could adversely impact bone healing, it is important that virtually all DOX be released from material. Composites containing 15wt% γ-CD microparticles demonstrate 100% DOX release within 100 days, whereas only 6% DOX is liberated from PMMA with free DOX over same period. Refillable properties of PMMA composite system may find utility for customizing dosing regimens. Findings suggest that PMMA composites could have potential as chemotherapeutic delivery platforms to assist in bone reconstruction. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Erika L Cyphert
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
| | - Nithya Kanagasegar
- School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
| | - Ningjing Zhang
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
| | - Greg D Learn
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
| | - Horst A von Recum
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, 44106, USA
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Falakaflaki M, Varshosaz J, Mirian M. Local delivery of usnic acid loaded Rhamnolipid vesicles by gelatin / tragacanth gum / montmorillonite/ vanillin cryogel scaffold for expression of osteogenic biomarkers and antimicrobial activity. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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de Castro ASB, de Paula HMC, Coelho YL, Hudson EA, Pires ACS, da Silva LHM. Kinetic and thermodynamic of lactoferrin - Ethoxylated-nonionic surfactants supramolecular complex formation. Int J Biol Macromol 2021; 187:325-331. [PMID: 34280448 DOI: 10.1016/j.ijbiomac.2021.07.087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 11/19/2022]
Abstract
Understanding nonionic surfactant-protein interactions is fundamental from both technological and scientific points of view. However, there is a complete absence of kinetic data for such interactions. We employed surface plasmon resonance (SPR) to determine the kinetic and thermodynamic parameters of bovine lactoferrin-Brij58 interactions at various temperatures under physiological conditions (pH 7.4). The adsorption process was accelerated with increasing temperature, while the desorption rate decreased, resulting in a more thermodynamically stable complex. The kinetic energetic parameters obtained for the formation of the activated complex, [bLF-Brij58]‡, indicated that the potential energy barrier for [bLF-Brij58]‡ formation arises primarily from the reduction in system entropy. [bLF-Brij58]○ formation was entropically driven, indicating that hydrophobic interactions play a fundamental role in bLF interactions with Brij58.
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Affiliation(s)
- Alan Stampini Benhame de Castro
- Colloidal, macromolecular and Green Chemistry (QUIVECOM), Chemistry Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil
| | - Hauster Maximiler Campos de Paula
- Colloidal, macromolecular and Green Chemistry (QUIVECOM), Chemistry Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil
| | - Yara Luiza Coelho
- Colloidal, macromolecular and Green Chemistry (QUIVECOM), Chemistry Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil; Colloid Chemistry Group, Chemistry Institute, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700, 37130-000 Alfenas, MG, Brazil
| | - Eliara Acipreste Hudson
- Applied Molecular Thermodynamic (THERMA), Food Technology Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil
| | - Ana Clarissa S Pires
- Applied Molecular Thermodynamic (THERMA), Food Technology Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil
| | - Luis Henrique M da Silva
- Colloidal, macromolecular and Green Chemistry (QUIVECOM), Chemistry Department, Federal University of Viçosa, Av. PH Rolfs, s/n, Viçosa, MG 36570-900, Brazil.
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13
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Sane M, Dighe V, Patil R, Hassan PA, Gawali S, Patravale V. Bivalirudin and sirolimus co-eluting coronary stent: Potential strategy for the prevention of stent thrombosis and restenosis. Int J Pharm 2021; 600:120403. [PMID: 33711467 DOI: 10.1016/j.ijpharm.2021.120403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 11/19/2022]
Abstract
Localized drug delivery with sustained elution characteristics from nanocarrier coated stents represents a viable therapeutic approach to circumvent concerns related to coronary stent therapy. We fabricated a Sirolimus (SRL) and Bivalirudin (BIV) releasing nanoparticles (NPs) coated stent for concurrent mitigation of vascular restenosis and acute stent thrombosis. SRL NPs were prepared by nanoprecipitation method whereas the BIV vesicles were generated using hydrophobic ion pair approach followed by micellization phenomenon. MTT assay and confocal microscopic analysis indicated superior anti-proliferative activity and higher cellular uptake of SRL NPs into human coronary artery smooth muscle cells, respectively. DSC and ATR-FTIR techniques confirmed the formation of complex between BIV and phosphatidylglycerol via some weak physical interactions. More than 2 fold rise in log P value was obtained for DSPG-BIV at 3:1 M ratio compared with native BIV solution. The SAXS analysis indicated formation of oligolamellar vesicles of DSPG-BIV complex which was preferentially entrapped into lipophilic lamellae of vesicles. APTT, PT, and TT tests revealed that the BIV vesicles caused significant prolongation of clotting time compared to native BIV solution. The SEM analysis showed uniform and defect free stent coating. In vitro release study demonstrated that SRL and BIV were eluted in a sustained manner from coated stents.
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Affiliation(s)
- Mangesh Sane
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai 400 019, Maharashtra, India
| | - Vikas Dighe
- National Centre for Preclinical Reproductive and Genetic Toxicology, National Institute for Research in Reproductive Health, J. M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Rucha Patil
- Department of Haemostasis & Thrombosis, National Institute of Immunohaematology, Indian Council of Medical Research, 13th Floor, New Multi-storeyed Building, KEM Hospital Campus, Parel, Mumbai 400 012, India
| | | | - Santosh Gawali
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Vandana Patravale
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai 400 019, Maharashtra, India.
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14
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Hao W, Zheng Z, Zhu L, Pang L, Ma J, Zhu S, Du L, Jin Y. 3D printing-based drug-loaded implanted prosthesis to prevent breast cancer recurrence post-conserving surgery. Asian J Pharm Sci 2021; 16:86-96. [PMID: 33613732 PMCID: PMC7878459 DOI: 10.1016/j.ajps.2020.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/25/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022] Open
Abstract
Systemic chemotherapy of breast cancer is commonly delivered as a large dose and has toxic side effects. Local chemotherapy would overcome the shortcomings of systemic reconstruction and could play an important role in breast cancer surgery according to personalized demand. The application of three-dimensional (3D) printing technology makes personalized customization possible. We designed and prepared a prosthesis containing paclitaxel (PTX) and doxorubicin (DOX) microspheres (PPDM) based on 3D printing to prevent tumor recurrence and metastasis after breast conserving surgery. Polydimethysiloxane has good biocompatibility and was used as a drug carrier in this study. The average particle size of the PTX and DOX microspheres were approximately 3.1 µm and 2.2 µm, respectively. The drug loading of PTX and DOX microspheres was 4.2% and 2.1%, respectively. In vitro drug release studies demonstrated that the 3D-printed prosthesis loaded with PTX and DOX microspheres could release the drugs continuously for more than 3 weeks and thereby suppress cancer recurrence with reduced side effects. The PTX and DOX microspheres not only exerted a synergistic effect, but also achieved a good sustained release effect. In vivo evaluation showed that the PPDM could effectively inhibit breast cancer recurrence and metastasis in mice with breast cancer. PPDM are expected to achieve postoperative chemotherapy for breast cancer and be highly efficient to prevent local breast cancer recurrence and metastasis.
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Affiliation(s)
- Wenyan Hao
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Weifang Medical University, Weifang 261000, China
| | | | - Lin Zhu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lulu Pang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jinqiu Ma
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Siqing Zhu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Anhui Medical University, Hefei 230032, China
| | - Lina Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Weifang Medical University, Weifang 261000, China
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Anhui Medical University, Hefei 230032, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Anhui Medical University, Hefei 230032, China
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15
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Size exclusion chromatography: An effective tool for the estimation of Sirolimus levels. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1156:122303. [DOI: 10.1016/j.jchromb.2020.122303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/21/2020] [Accepted: 08/04/2020] [Indexed: 12/25/2022]
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16
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Camilo CJJ, Leite DOD, Silva ARA, Menezes IRA, Coutinho HDM, Costa JGM. Lipid vesicles: applications, principal components and methods used in their formulations: A review. ACTA BIOLÓGICA COLOMBIANA 2020. [DOI: 10.15446/abc.v25n2.74830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Liposomes and niosomes are currently the most studied lipid vesicles in the nanomedicine field. The system formed by a phospholipid bilayer in aqueous medium allows these vesicles to carry both hydrophilic and lipophilic compounds, providing an increase in solubility of drugs lready used in conventional therapy. The focus on the development of these vesicles should be directed to determining the ideal composition, with low toxicity, biocompatibility and which remains stable for long periods. These characteristics are related to the components used for formulation and the substances that will be encapsulated. Another important point relates to the methods used during formulation, which are important in determining the type of vesicle formed, whether these be large or small, unilamellar or multilamellar. Because of the deliberate actions applied in the development of these vesicles, this review sought to gather updated information regarding the different methods used, including their main components while considering the behavior of each of them when used in different formulations. Also, data showing the importance of formulations in the medical field evidencing studies performed with liposome and niosome vesicles as promising in this area, and others, were included. The approach allows a better understanding of the participation of components in formulations such as cholesterol and non-ionic surfactants, as well as the basis for choosing the ideal components and methods for future research in the development of these vesicles.
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Curcumin-loaded polysaccharides-based complex particles obtained by polyelectrolyte complexation and ionic gelation. I-Particles obtaining and characterization. Int J Biol Macromol 2020; 147:629-642. [PMID: 31904456 DOI: 10.1016/j.ijbiomac.2019.12.247] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/19/2019] [Accepted: 12/28/2019] [Indexed: 12/14/2022]
Abstract
Curcumin has essential therapeutic benefits, but it is insoluble in water and thus has low bioavailability. This study aimed to immobilize curcumin into new polysaccharide-based microparticles (gellan, i-carrageenan, and chitosan) to increase its stability and bioavailability. Curcumin-loaded complex microparticles were obtained from three polysaccharides, of different ionic character, by ionic cross-linking and polyelectrolyte complexation. The immobilization efficiency was between 85.75% and 97.25%. The microparticles were characterized morphologically by SEM, and it was observed that the microparticles containing the i-carrageenan had a more pronounced porosity of the matrix. The swelling degree values at pH = 7.4 were superior to those obtained at pH = 6.8 or pH = 2 and depend on both the cross-linking degree and particles morphology. The polysaccharides microparticles, curcumin, and constituent polysaccharides were characterized by FT-IR spectroscopy. The curcumin release kinetics was studied in three different pH media, and the release efficiency ranged between 65.1% and 97.9% at pH = 7.4, between 60.2% and 82.2% at pH = 6.8 and between 56.1% and 64.0% at pH = 2. These microparticles can be intended for oral administration, having as therapeutic target the colon, for the controlled release of curcumin, since they can overcome the gastric barrier without the degradation of the active principle, which is protected by the polymer matrix.
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18
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Hou R, Wu L, Zhu Y, Wang J, Yang Z, Tu Q, Huang N. Study of functional drug-eluting stent in promoting endothelialization and antiproliferation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:244-260. [PMID: 31626738 DOI: 10.1080/09205063.2019.1683266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Drug-eluting stents have been widely used in the clinic because of their impressive ability to reduce restenosis. However, the conventional biodegradable polymers used for drug-loaded coatings undergo bulk erosion, which can induce internal catalysis, resulting in a high local acidity during the degradation process and unfavorable side-effects. Herein, poly(1,3-trimethylene carbonate), a surface eroding biodegradable polymer, was chosen as a drug-loaded coating for cardiovascular stents. We modified both sides of the stent to simultaneously promote re-endothelialization at the inner layer and reduce restenosis at the outer layer, using a titanium oxide (Ti-O) film as the inner layer and a Ti-O film/drug coating as the outer layer. In vitro and in vivo results indicated that the Ti-O film accelerated endothelial cell growth and re-endothelialization, and the drug coating inhibited platelet adhesion, activation, and aggregation, smooth muscle cell proliferation, and significantly reduced neointimal hyperplasia. Therefore, this novel stent may have potential as a cardiovascular stent to treat patients with coronary artery stenosis.
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Affiliation(s)
- Ruixia Hou
- Department of Anatomy and Histology and Embryology, Medical School of Ningbo University, Ningbo, China.,Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China.,State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, China
| | - Leigang Wu
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yabin Zhu
- Department of Anatomy and Histology and Embryology, Medical School of Ningbo University, Ningbo, China
| | - Jin Wang
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Zhilu Yang
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Qiufen Tu
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Nan Huang
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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19
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Younes NF, Abdel-Halim SA, Elassasy AI. Solutol HS15 based binary mixed micelles with penetration enhancers for augmented corneal delivery of sertaconazole nitrate: optimization, in vitro, ex vivo and in vivo characterization. Drug Deliv 2019; 25:1706-1717. [PMID: 30442039 PMCID: PMC6249589 DOI: 10.1080/10717544.2018.1497107] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Keratomycosis is a serious corneal disease that can cause a permanent visual disability if not treated effectively. Sertaconazole nitrate (STZ), a novel broad spectrum antifungal drug, was suggested as a promising treatment. However, its utility in the ocular route is restricted by its poor solubility, along with other problems facing the ocular delivery like short residence time, and the existing corneal barrier. Therefore, the objective of this study was to formulate STZ loaded binary mixed micelles (STZ-MMs) enriched with different penetration enhancers using thin-film hydration method, based on a 31.22 mixed factorial design. Different formulation variables were examined, namely, type of auxiliary surfactant, type of penetration enhancer, and total surfactants: drug ratio, and their effects on the solubility of STZ in MMs (SM), particle size (PS), polydispersity index (PDI), and zeta potential (ZP) were evaluated. STZ-MMs enhanced STZ aqueous solubility up to 338.82-fold compared to free STZ. Two optimized formulations (MM-8 and MM-11) based on the desirability factor (0.891 and 0.866) were selected by Design expert® software for further investigations. The optimized formulations were imaged by TEM which revealed nanosized spherical micelles. Moreover, they were examined for corneal mucoadhesion, stability upon dilution, storage effect, and ex vivo corneal permeation studies. Finally, both in vivo corneal uptake and in vivo corneal tolerance were investigated. MM-8 showed superiority in the ex vivo and in vivo permeation studies when compared to the STZ-suspension. The obtained results suggest that the aforementioned STZ loaded mixed micellar system could be an effective candidate for Keratomycosis-targeted therapy.
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Affiliation(s)
- Nihal Farid Younes
- a Department of Pharmaceutics and industrial pharmacy, Faculty of pharmacy , Cairo University , Cairo , Egypt
| | - Sally Adel Abdel-Halim
- a Department of Pharmaceutics and industrial pharmacy, Faculty of pharmacy , Cairo University , Cairo , Egypt
| | - Abdelhalim I Elassasy
- a Department of Pharmaceutics and industrial pharmacy, Faculty of pharmacy , Cairo University , Cairo , Egypt
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20
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Andima M, Costabile G, Isert L, Ndakala AJ, Derese S, Merkel OM. Evaluation of β-Sitosterol Loaded PLGA and PEG-PLA Nanoparticles for Effective Treatment of Breast Cancer: Preparation, Physicochemical Characterization, and Antitumor Activity. Pharmaceutics 2018; 10:pharmaceutics10040232. [PMID: 30445705 PMCID: PMC6321471 DOI: 10.3390/pharmaceutics10040232] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/31/2018] [Accepted: 11/08/2018] [Indexed: 12/11/2022] Open
Abstract
β-Sitosterol (β-Sit) is a dietary phytosterol with demonstrated anticancer activity against a panel of cancers, but its poor solubility in water limits its bioavailability and therapeutic efficacy. In this study, poly(lactide-co-glycolic acid) (PLGA) and block copolymers of poly(ethylene glycol)-block-poly(lactic acid) (PEG-PLA) were used to encapsulate β-Sit into nanoparticles with the aim of enhancing its in vitro anticancer activity. β-Sitosterol-loaded PLGA and PEG-PLA nanoparticles (β-Sit-PLGA and β-Sit-PEG-PLA) were prepared by using a simple emulsion-solvent evaporation technique. The nanoparticles were characterized for size, particle size distribution, surface charge, and encapsulation efficiency. Their cellular uptake and antiproliferative activity was evaluated against MCF-7 and MDA-MB-231 human breast cancer cells using flow cytometry and MTT assays, respectively. β-Sit-PLGA and β-Sit-PEG-PLA nanoparticles were spherical in shape with average particle sizes of 215.0 ± 29.7 and 240.6 ± 23.3 nm, a zeta potential of -13.8 ± 1.61 and -23.5 ± 0.27 mV, respectively, and with narrow size distribution. The encapsulation efficiency of β-Sit was 62.89 ± 4.66 and 51.83 ± 19.72 % in PLGA and PEG-PLA nanoparticles, respectively. In vitro release in phosphate-buffered saline (PBS) and PBS/with 0.2% Tween 20 showed an initial burst release, followed by a sustained release for 408 h. β-Sit-PLGA nanoparticles were generally stable in a protein-rich medium, whereas β-Sit-PEG-PLA nanoparticles showed a tendency to aggregate. Flow cytometry analysis (FACS) indicated that β-Sit-PLGA nanoparticles were efficiently taken up by the cells in contrast to β-Sit-PEG-PLA nanoparticles. β-Sit-PLGA nanoparticles were therefore selected to evaluate antiproliferative activity. Cell viability was inhibited by up to 80% in a concentration range of 6.64⁻53.08 μg/mL compared to the untreated cells. Taken together, encapsulation of β-Sitosterol in PLGA nanoparticles is a promising strategy to enhance its anticancer activity against breast cancer cells.
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Affiliation(s)
- Moses Andima
- Department of Pharmacy, Pharmaceutical Technology & Biopharmaceutics, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, 81377 Munich, Germany.
- Department of Chemistry, University of Nairobi, P.O. Box 30197-00100, Nairobi, Kenya.
- Department of Chemistry, Busitema University, P.O. Box 236, Tororo, Uganda.
| | - Gabriella Costabile
- Department of Pharmacy, Pharmaceutical Technology & Biopharmaceutics, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, 81377 Munich, Germany.
| | - Lorenz Isert
- Department of Pharmacy, Pharmaceutical Technology & Biopharmaceutics, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, 81377 Munich, Germany.
| | - Albert J Ndakala
- Department of Chemistry, University of Nairobi, P.O. Box 30197-00100, Nairobi, Kenya.
| | - Solomon Derese
- Department of Chemistry, University of Nairobi, P.O. Box 30197-00100, Nairobi, Kenya.
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology & Biopharmaceutics, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, 81377 Munich, Germany.
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21
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Pawar VA, Manjappa AS, Murumkar PR, Gajaria TK, Devkar RV, Mishra AK, Yadav MR. Drug-fortified liposomes as carriers for sustained release of NSAIDs: The concept and its validation in the animal model for the treatment of arthritis. Eur J Pharm Sci 2018; 125:11-22. [PMID: 30219410 DOI: 10.1016/j.ejps.2018.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/18/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023]
Abstract
Drug-fortified cationic liposomes of 6‑methoxy‑2‑naphthylacetic acid (6‑MNA) were prepared and characterized by various techniques. The residence time of drug-fortified liposomes in joint cavity was evaluated by intra-articular (IA) administration of the radio-labeled (99mTc) liposomal formulation in the inflamed joints in rats. The cationic liposomal formulation composed of 6‑MNA (3) as an active agent, its double salt (4) with the lipid 1,2‑distearoyl‑sn‑glycero‑3‑phosphoethanolamine (DSPE), and pharmaceutically acceptable excipients such as hydrogenated soyabean phospatidylcholine (HSPC) and 1,2‑dioleyloxy‑3‑trimethylammoniumpropane chloride (DOTAP) were developed using thin film hydration technique. The cryo-TEM analysis confirmed that the prepared optimized liposomal formulation (DFL-2) was a mixture of small unilamellar vesicles (SUVs), large unilamellar vesicles (LUVs) and multilamellar vesicles (MLVs). In addition, the TEM analysis confirmed that the prepared liposomes were of spherical in shape having liposome size in the range of 500-900 nm and zeta potential of about +30 mV. The developed cationic liposomes exhibited sustained release profile of payload of 6‑MNA for over >12 h and about five times higher retention in the inflamed animal joints after 24 h (by scintigraphy of the joints) as compared to the plain 6‑MNA solution when administered by IA route. The anti-inflammatory activity of prepared liposomal composition is evaluated by Freund's adjuvant induced arthritic model in rats. The liposomal formulation was well tolerated by all animals indicating good biocompatibility. Further, the cationic liposomal formulation treated group showed decreased erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) level in comparison to the control and the standard groups in the in vivo study. The improved efficacy of the drug-fortified liposomal formulation was due to the coupled effect of longer retention and sustained release of the active drug 6‑MNA in the joints. From the obtained results it could be concluded that the combined effect of the cationic charge on the drug-fortified liposomes and the inherent affinity of the active agent towards the synovial joint tissues, coupled with slow release of the active drug due to double salt approach at the site of administration could potentially decrease the frequency of IA drug administration. Hence such a formulation could prove to be a therapeutic boon for the management of late stage arthritis.
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Affiliation(s)
- Vijay A Pawar
- Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
| | - Arehalli S Manjappa
- Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
| | - Prashant R Murumkar
- Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
| | - Tejal K Gajaria
- Division of Phytotherapeutics and Metabolic Endocrinology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
| | - Ranjisinh V Devkar
- Division of Phytotherapeutics and Metabolic Endocrinology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
| | - Anil K Mishra
- Institute of Nuclear Medicine and Allied Sciences, Brig. S.K. Mazumdar Road, New Delhi 110054, India
| | - Mange Ram Yadav
- Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India.
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