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Zöller K, To D, Bernkop-Schnürch A. Biomedical applications of functional hydrogels: Innovative developments, relevant clinical trials and advanced products. Biomaterials 2025; 312:122718. [PMID: 39084097 DOI: 10.1016/j.biomaterials.2024.122718] [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: 02/08/2024] [Revised: 07/08/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024]
Abstract
Functional hydrogels are used for numerous biomedical applications such as tissue engineering, wound dressings, lubricants, contact lenses and advanced drug delivery systems. Most of them are based on synthetic or natural polymers forming a three-dimensional network that contains aqueous media. Among synthetic polymers, poly(meth)acrylates, polyethyleneglycols, poly(vinylalcohols), poly(vinylpyrrolidones), PLGA and poly(urethanes) are of high relevance, whereas natural polymers are mainly polysaccharides such as hyaluronic acid, alginate or chitosan and proteins such as albumin, collagen or elastin. In contrast to most synthetic polymers, natural polymers are biodegradable. Both synthetic and natural polymers are often chemically modified in order to improve or induce favorable properties and functions like high mechanical strength, stiffness, elasticity, high porosity, adhesive properties, in situ gelling properties, high water binding capacity or drug release controlling properties. Within this review we provide an overview about the broad spectrum of biomedical applications of functional hydrogels, summarize innovative approaches, discuss the concept of relevant functional hydrogels that are in clinical trials and highlight advanced products as examples for successful developments.
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Affiliation(s)
- Katrin Zöller
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria
| | - Dennis To
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria.
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2
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Shobeirean A, Attar H, Varshochian R, Rezvanfar MA. Glatiramer acetate in situ forming gel, a new approach for multiple sclerosis treatment. Daru 2024:10.1007/s40199-024-00532-z. [PMID: 39225953 DOI: 10.1007/s40199-024-00532-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND Glatiramer acetate (GA), a commonly used treatment for multiple sclerosis (MS), requires long-term frequent injections to ensure its effectiveness. This often leads to adverse effects, patient noncompliance, and economic inefficiency. OBJECTIVES In this study, poloxamer, as a thermosensitive polymer modified by chitosan (CS) and hyaluronic acid (HA), was employed to prepare an in situ forming prolonged release formulation of GA to overcome the problems derived from frequent repeated injections and to enhance the patient compliance. METHODS The sol-gel formulation was produced through a cold method and optimized using design of experiments. The final product was characterized in terms of gelation time (GT), rheological behaviors, morphological properties, assay, and drug release kinetics. RESULTS The in vitro release rate of GA during the first 24 h was quite rapid, but then it continued at a slower rate of 0.05 mg ml-1h-1. The in vivo analysis after the subcutaneous injections showed lower levels of IL-5, IL-13, and uric acid (UA) in mice treated with the gel formulation compared with those receiving free GA in the first few days. However, after 10 days, significantly higher concentrations were detected, which continued to increase slowly. CONCLUSION It can be concluded that the designed thermosensitive sol-gel formula is capable of extending the effectiveness of GA and can be considered as a promising sustained release formulation for the treatment of MS.
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Affiliation(s)
- Anahita Shobeirean
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hossein Attar
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Reyhaneh Varshochian
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Amin Rezvanfar
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Tangdilintin F, Achmad AA, Stephanie, Sulistiawati S, Enggi CK, Wahyudin E, Rahman L, Nainu F, Manggau MA, Permana AD. Development of Transdermal Formulation Integrating Polymer-Based Solid Microneedles and Thermoresponsive Gel Fucoidan for Antiaging: Proof of Concept Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:18451-18465. [PMID: 39169662 DOI: 10.1021/acs.langmuir.4c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Skin can be damaged by intense and prolonged exposure to ultraviolet (UV) radiation. Photoaging and acute damage from sun exposure result in collagen degradation and enzymatic activity decline in the skin. Fucoidan (FUC) exhibits potential antiaging properties, including collagen synthesis promotion and enzyme activity inhibition. However, FUC's limited ability to penetrate the skin layers due to its large molecular weight makes it a challenge for topical application. In this study, we successfully developed a new approach by integrating thermoresponsive gel (TRG) containing FUC with solid microneedles (SMNs) as a delivery system. TRG is formulated using a combination of Pluronic F127 (PF127) and Pluronic F68 (PF68) polymers, while SMNs are made from a mixture of poly(vinyl alcohol) (PVA) and poly(vinylpyrrolidone) (PVP) polymers with a variety of cross-linkers. Based on the results of ex vivo testing, it was shown that more than 80% of FUC can be delivered using the optimized formula. Furthermore, the results of the in vitro blood hemolytic test showed that TRG-FUC-SMNs were relatively biocompatible. In vivo antiaging activity tests using a rat model exposed to UV for 14 days showed that histological assessment, skin elasticity measurement, wrinkle evaluation, and skin moisture content had no significant differences (p < 0.05) compared to the positive control group. In contrast, a significant difference (p < 0.05) was observed when comparing the TRG-FUC-SMNs group with the group that received only TRG-FUC without pretreatment and negative controls. These findings suggest that FUC has potential to be delivered using the TRG system in combination with SMNs to harness its antiaging properties.
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Affiliation(s)
| | | | - Stephanie
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | | | | | - Elly Wahyudin
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Latifah Rahman
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Firzan Nainu
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | | | - Andi Dian Permana
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
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Long Y, Lei F, Hu J, Zheng Z, Gui S, He N. Design and Evaluation of Ophthalmic Thermosensitive In Situ Gel of Compound Salvia. AAPS PharmSciTech 2024; 25:191. [PMID: 39164556 DOI: 10.1208/s12249-024-02913-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 08/01/2024] [Indexed: 08/22/2024] Open
Abstract
The compound Salvia Recipe has been shown to have a relatively significant curative effect in management of cardiovascular and cerebrovascular diseases. This work aimed to prepare a thermosensitive in situ gel (ISG) delivery system that utilizes Poloxamer 407, Poloxamer 188, and hydroxypropyl methylcellulose for ocular administration of the compound Salvia recipe to treat cardiovascular and cerebrovascular diseases. The central composite design-response surface method was utilized to improve the prescription of the gel. The formulated gel was characterized and assessed in terms of stability, retention time, in vitro release, rheology, ocular irritation, pharmacokinetics studies, and tissue distribution. The gel was a liquid solution at room temperature and became semisolid at physiological temperature, prolonging its stay time in the eye. Pharmacokinetics and tissue distribution experiments indicated that thermosensitive ISG had enhanced targeting of heart and brain tissues. Additionally, it could lower drug toxicity and side effects in the lungs and kidneys. The compound Salvia ophthalmic thermosensitive ISG is a promising drug delivery system for the management of cardiovascular and cerebrovascular illnesses.
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Affiliation(s)
- Yanqiu Long
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China
| | - Fang Lei
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China
| | - Jie Hu
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China
| | - Zhiyun Zheng
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, People's Republic of China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, 230012, China
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, China
| | - Shuangying Gui
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, People's Republic of China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, 230012, China
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, China
| | - Ning He
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei, AnHui, People's Republic of China.
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, People's Republic of China.
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, 230012, China.
- Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei, 230012, China.
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El-Shahed SA, Hassan DH, El-Nabarawi MA, El-Setouhy DA, Abdellatif MM. Polymeric Mixed Micelle-Loaded Hydrogel for the Ocular Delivery of Fexofenadine for Treating Allergic Conjunctivitis. Polymers (Basel) 2024; 16:2240. [PMID: 39204460 PMCID: PMC11359231 DOI: 10.3390/polym16162240] [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: 06/28/2024] [Revised: 07/21/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
This study was designed to formulate a polymeric mixed micelle (PMM) formulation to sustainably release fexofenadine (FEX) to treat allergic conjunctivitis effectively. A 32 factorial design was employed where the studied factors were PL90G amount (X1) and Pluronic (F127 and P123) mixture ratio (X2), and the dependent variables were entrapment efficacy (EE, Y1, %), particle size (PS, Y2, nm), zeta potential (ZP, Y3, mV), and the percent of drug released after 6 h (Q6h, Y4, %). The optimized formula was blended with a hydrogel base to develop an FEX-PMM hydrogel, where the safety and efficiency of this hydrogel were evaluated using in vivo studies. The EE% of FEX-PMM ranged from 62.15 ± 2.75 to 90.25 ± 1.48%, the PS from 291.35 ± 6.43 to 467.95 ± 3.60 nm, the ZP from -5.41 ± 0.12 to -9.23 ± 0.23 mV, and the Q6h from 50.27 ± 1.11 to 95.38 ± 0.92%. The Draize test results confirmed the safety of the FEX-PMM hydrogel. Furthermore, the FEX-PMM hydrogel showed rapid recovery in animals with induced allergic conjunctivitis compared to the free drug hydrogel. These results assure PMM's capability to deliver FEX to the conjunctival surface in a sustained pattern, consequently achieving better therapeutic outcomes.
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Affiliation(s)
- Sherouk A. El-Shahed
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza 12566, Egypt; (S.A.E.-S.); (D.H.H.)
| | - Doaa H. Hassan
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza 12566, Egypt; (S.A.E.-S.); (D.H.H.)
| | - Mohamed A. El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University El-Kasr El-Aini Street, Cairo 11562, Egypt; (M.A.E.-N.); (D.A.E.-S.)
| | - Doaa Ahmed El-Setouhy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University El-Kasr El-Aini Street, Cairo 11562, Egypt; (M.A.E.-N.); (D.A.E.-S.)
| | - Menna M. Abdellatif
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza 12566, Egypt
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Maddeppungeng NM, Syahirah NA, Hidayati N, Rahman FUA, Mansjur KQ, Rieuwpassa IE, Setiawati D, Fadhlullah M, Aziz AYR, Salsabila A, Alsayed AR, Pamornpathomkul B, Permana AD, Hasyim R. Specific delivery of metronidazole using microparticles and thermosensitive in situ hydrogel for intrapocket administration as an alternative in periodontitis treatment. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1726-1749. [PMID: 38769614 DOI: 10.1080/09205063.2024.2349414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/25/2024] [Indexed: 05/22/2024]
Abstract
Periodontitis is a common chronic inflammatory disease primarily caused by the prevalence of bacterial overgrowth resulting in the development of an inflammatory condition that destroys the tooth's supporting tissues and eventual tooth loss. Comparatively, to other treatment methods, it is difficult for topical antibacterial drugs to effectively permeate the biofilm's physical barrier, making conventional therapy for periodontitis more challenging. This novel study combines thermosensitive in situ hydrogel with microparticles (MPs) to enhance the targeted delivery of metronidazole (MET) to the periodontal pocket. Polycaprolactone (PCL) polymer was utilized to produce bacteria-sensitive MPs. Additionally, the study assessed the attributes of MPs and demonstrated an enhancement in the in vitro antibacterial efficacy of MPs towards Staphylococcus aureus (SA) and Escherichia coli (EC). Subsequently, we incorporated MET-MPs into thermosensitive in situ hydrogel formulations using chitosan. The optimized formulations exhibited stability, appropriate gelation temperature, mucoadhesive strength, and viscosity. In vitro permeation tests showed selective and prolonged drug release against SA and EC. Ex vivo experiments demonstrated no significant differences between in situ hydrogel containing pure MET and MET-MPs in biofilm quantity, bacterial counts, and metabolic activity in biofilms. According to in vitro tests and the effectiveness of the antibacterial activity, this study has exhibited a novel methodology for more efficacious therapies for periodontitis. This study aims to utilize MET in MPs to improve its effectiveness, enhance its antibacterial activity, and improve patient treatment outcomes. In further research, the efficacy of the treatment should be investigated in vivo using an appropriate animal model.
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Affiliation(s)
- Nurul Muhlisah Maddeppungeng
- Department of Pharmacy, Faculty of Medicine and Health Sciences, Alauddin Islamic State University, Samata Gowa, Indonesia
| | | | - Nasyrah Hidayati
- Department of Orthodontic, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Fadhlil U A Rahman
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Karima Qurnia Mansjur
- Department of Orthodontic, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Irene E Rieuwpassa
- Department of Oral Biology, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Dian Setiawati
- Department of Periodontology, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Muhammad Fadhlullah
- Veterinary Paramedic Study Program, Faculty of Vocational Study, Hasanuddin University, Makassar, Indonesia
| | | | | | - Ahmad R Alsayed
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
| | | | | | - Rafikah Hasyim
- Department of Oral Biology, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
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Fitri AMN, Mahfufah U, Aziz SBA, Sultan NAF, Mahfud MAS, Saputra MD, Elim D, Bakri NF, Arjuna A, Sari YW, Domínguez-Robles J, Pamornpathomkul B, Mir M, Permana AD. Enhancement of skin localization of β-carotene from red fruit (Pandanus conoideus Lam.) using solid dispersion-thermoresponsive gel delivered via polymeric solid microneedles. Int J Pharm 2024; 660:124307. [PMID: 38852748 DOI: 10.1016/j.ijpharm.2024.124307] [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: 02/20/2024] [Revised: 05/13/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Red fruit (Pandanus conoideus Lam.) boasts high β-carotene (BC) content, often consumed orally. However, absorption issues and low bioavailability due to food matrix interaction have led to transdermal delivery exploration. Nevertheless, BC has a short skin retention time. To address these limitations, this study formulates a β-carotene solid dispersion (SD-BC) loaded thermoresponsive gel combined with polymeric solid microneedles (PSM) to enhance in vivo skin bioavailability. Characterization of SD-BC includes saturation solubility, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and in vitro release. Characterization of SD-BC thermoresponsive gel includes gelation temperature, viscosity, rheological behaviour, pH, bio-adhesiveness, spreadability, and extrudability. PSM's mechanical properties and insertion capability were assessed. Ex vivo and in vivo dermato-pharmacokinetic studies, drug content, hemolysis, and skin irritation assessments were conducted to evaluate overall performance. Results confirm amorphous SD-BC formation, enhancing solubility. Both SD-BC thermoresponsive gel and PSM exhibit favourable characteristics, including rheological properties and mechanical strength. In vitro release studies showed a seven-fold increase in BC release compared to plain hydrogel. SD-BC thermoresponsive gel combined with PSM achieves superior ex vivo permeation (Cmax = 305.43 ± 32.07 µg.mL-1) and enhances in vivo dermato-pharmacokinetic parameters by 200-400 %. Drug content, hemolysis, and skin irritation studies confirmed its safety and non-toxicity.
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Affiliation(s)
| | - Ulfah Mahfufah
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | | | | | | | | | - Diany Elim
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Nur Fadillah Bakri
- Department of Pharmacy, Cendrawasih University, Jayapura 99224, Indonesia
| | - Andi Arjuna
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Yessie Widya Sari
- Faculty of Mathematics and Natural Science, IPB University, Bogor 16680, Indonesia
| | - Juan Domínguez-Robles
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, Seville 41012, Spain
| | | | - Maria Mir
- Department of Pharmacy, Iqra University Islamabad Campus, Islamabad, Pakistan
| | - Andi Dian Permana
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia.
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Sakuma F, Higashi K, Ueda K, Morita T, Iohara D, Hirayama F, Moribe K. Effect of Acetaminophen on Poloxamer 407 Micelles and Hydrogels: The Relationship between Structural and Physical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39012334 DOI: 10.1021/acs.langmuir.4c01362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Poloxamer hydrogel possesses thermosensitive sol-gel transition characteristics and is widely used as a drug-controlled-release carrier for topical or injectable formulations. In this study, the effect of loading of a drug, acetaminophen (ACE), on the physical and structural properties of poloxamer 407 (P407) micelles and hydrogels was investigated. Differential scanning calorimetry measurements revealed that ACE reduced the critical micelle temperature and enthalpy of micellization of P407 solutions. The P407 micellization was promoted by ACE incorporation. Rheometry showed that ACE increased the sol-gel transition temperature and reduced the gel strength of P407. In situ small-angle X-ray scattering (SAXS) using synchrotron radiation revealed that ACE altered the structure of P407 micelles and their packing in the P407 gels. As ACE concentration increased, the P407 micelle packing changed from a face-centered cubic phase to a body-centered cubic phase. Furthermore, ACE disordered the micelle packing structure and induced the formation of an amorphous phase. Structural analysis of the P407 micelle packing indicated that ACE reduced the aggregation number (Nagg) of P407 micelles in the gels. The SAXS study for diluted P407 solutions revealed that ACE reduced the P407 micelle size and its uniformity. The structural changes in P407 micelles by ACE loading (e.g., the reduction of Nagg, size, and size uniformity) would alter the micelle packing structure. It was found that these structural changes of micelle packing, especially the formation of an amorphous phase, could destabilize the P407 gel. As a result, the physical properties of P407 gels, such as gelation temperature and gel strength, were changed. This relationship between the structure and physical property of drug-loaded P407 gels was well-explained by correlating the micelle and gel structures. The mechanistic understanding of the change in the physical properties of P407 gels by drug loading is essential for the effective development of poloxamer gel formulations.
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Affiliation(s)
- Fumie Sakuma
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Takeshi Morita
- Graduate School of Science, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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Biswas A, Kumar S, Choudhury AD, Bisen AC, Sanap SN, Agrawal S, Mishra A, Verma SK, Kumar M, Bhatta RS. Polymers and their engineered analogues for ocular drug delivery: Enhancing therapeutic precision. Biopolymers 2024; 115:e23578. [PMID: 38577865 DOI: 10.1002/bip.23578] [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: 01/26/2024] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
Ocular drug delivery is constrained by anatomical and physiological barriers, necessitating innovative solutions for effective therapy. Natural polymers like hyaluronic acid, chitosan, and gelatin, alongside synthetic counterparts such as PLGA and PEG, have gained prominence for their biocompatibility and controlled release profiles. Recent strides in polymer conjugation strategies have enabled targeted delivery through ligand integration, facilitating tissue specificity and cellular uptake. This versatility accommodates combined drug delivery, addressing diverse anterior (e.g., glaucoma, dry eye) and posterior segment (e.g., macular degeneration, diabetic retinopathy) afflictions. The review encompasses an in-depth exploration of each natural and synthetic polymer, detailing their individual advantages and disadvantages for ocular drug delivery. By transcending ocular barriers and refining therapeutic precision, these innovations promise to reshape the management of anterior and posterior segment eye diseases.
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Affiliation(s)
- Arpon Biswas
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
- Jawaharlal Nehru University, New Delhi, India
| | - Shivansh Kumar
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Abhijit Deb Choudhury
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
- Jawaharlal Nehru University, New Delhi, India
| | - Amol Chhatrapati Bisen
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sachin Nashik Sanap
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sristi Agrawal
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Anjali Mishra
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sarvesh Kumar Verma
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
- Jawaharlal Nehru University, New Delhi, India
| | - Mukesh Kumar
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
- Jawaharlal Nehru University, New Delhi, India
| | - Rabi Sankar Bhatta
- Pharmaceutics and Pharmacokinetic Division, CSIR-Central Drug Research Institute, Lucknow, India
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10
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Wang TJ, Rethi L, Ku MY, Nguyen HT, Chuang AEY. A review on revolutionizing ophthalmic therapy: Unveiling the potential of chitosan, hyaluronic acid, cellulose, cyclodextrin, and poloxamer in eye disease treatments. Int J Biol Macromol 2024; 273:132700. [PMID: 38879998 DOI: 10.1016/j.ijbiomac.2024.132700] [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: 08/21/2023] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/18/2024]
Abstract
Ocular disorders, encompassing both common ailments like dry eye syndrome and more severe situations for instance age-related macular degeneration, present significant challenges to effective treatment due to the intricate architecture and physiological barriers of the eye. Polysaccharides are emerging as potential solutions for drug delivery to the eyes due to their compatibility with living organisms, natural biodegradability, and adhesive properties. In this review, we explore not only the recent advancements in polysaccharide-based technologies and their transformative potential in treating ocular illnesses, offering renewed optimism for both patients and professionals but also anatomy of the eye and the significant obstacles hindering drug transportation, followed by an investigation into various drug administration methods and their ability to overcome ocular-specific challenges. Our focus lies on biological adhesive polymers, including chitosan, hyaluronic acid, cellulose, cyclodextrin, and poloxamer, known for their adhesive characteristics enhancing drug retention on ocular surfaces and increasing bioavailability. A detailed analysis of material designs used in ophthalmic formulations, such as gels, lenses, eye drops, nanofibers, microneedles, microspheres, and nanoparticles, their advantages and limitations, the potential of formulations in improving therapeutic outcomes for various eye conditions. Moreover, we underscore the discovery of novel polysaccharides and their potential uses in ocular drug delivery.
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Affiliation(s)
- Tsung-Jen Wang
- Department of Ophthalmology, Taipei Medical University Hospital, Taipei 11031, Taiwan; Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Lekshmi Rethi
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan
| | - Min-Yi Ku
- School of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan
| | - Hieu Trung Nguyen
- Department of Orthopedics and Trauma, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 700000, Viet Nam
| | - Andrew E-Y Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; Cell Physiology and Molecular Image Research Center, Taipei Medical University-Wan Fang Hospital, Taipei 11696, Taiwan.
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Haghighatseir N, Mozafari N, Shadvand E, Ashrafi H, Daneshamouz S, Azadi A. Mixed-Micelle in Situ Gel as a Candidate for Oral Inflammatory Ulcerative Diseases. AAPS PharmSciTech 2024; 25:144. [PMID: 38918282 DOI: 10.1208/s12249-024-02862-2] [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: 03/09/2024] [Accepted: 06/06/2024] [Indexed: 06/27/2024] Open
Abstract
The current treatment for oral inflammatory ulcerative diseases has limitations. In situ forming hydrogels have shown great potential to deliver therapeutic substances for drug delivery to the buccal cavity. This study aimed to prepare and characterize lipid- and surfactant-based mixed micelle in situ gel (MIG) and evaluate whether it can offer more favorable properties than the in situ gel for effective treatment of the disease. Dexamethasone was incorporated into the MIGs particles, based on Poloxamer 407 and chitosan. The lower gelation time at 37 ℃ was considered a criterion to select superior formulations among the different lipid- and surfactant-based candidates. Further characterization was performed to evaluate the opted formulations regarding morphology, physical stability, rheology, texture, and release profile. All formulations were thermoresponsive and had a shorter gelation time as the temperature increased. Dexamethasone was released in a highly controlled manner, and morphological evaluation revealed that the mixed micelle in situ gels had spherical nanoparticles. Thixotropic behavior was observed in all MIGs, indicating a prolonged retention time of the formulation after oral administration. This study has shown that among different MIGs, the one with oleic acid is a more promising candidate than the in situ gel and other MIGs for drug delivery to the buccal cavity.
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Affiliation(s)
- Niloofar Haghighatseir
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran
| | - Negin Mozafari
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran
| | - Elnaz Shadvand
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran
| | - Hajar Ashrafi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran
| | - Saeid Daneshamouz
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran
| | - Amir Azadi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, 71468 64685, Iran.
- Pharmaceuticals Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, 71468, 64685, Iran.
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Wu X, Cheng D, Lu Y, Rong R, Kong Y, Wang X, Niu B. A liquid crystal in situ gel based on rotigotine for the treatment of Parkinson's disease. Drug Deliv Transl Res 2024; 14:1048-1062. [PMID: 37875660 DOI: 10.1007/s13346-023-01449-x] [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] [Accepted: 10/09/2023] [Indexed: 10/26/2023]
Abstract
One of the most common neurodegenerative illnesses is Parkinson's disease (PD). Rotigotine (RTG) is a dopamine agonist that exerts anti-Parkinsonian effects through dopamine receptor agonism to improve motor symptoms and overall performance in PD patients. In this study, an in situ liquid crystal gel called rotigotine-gel (RTG-gel) was developed using soya phosphatidyl choline (SPC) and glycerol dioleate (GDO) to provide long-acting slow-release benefits of rotigotine while minimizing side effects. This study prepared the RTG-gel precursor solution using SPC, GDO, and ethanol (in the ratio of 54:36:10, w/w/w). The internal structures of the gel were confirmed by crossed-polarized light microscopy (PLM), small-angle X-ray scattering (SAXS), and differential scanning calorimetry (DSC). The rheological properties of the RTG-gel precursor solution indicate a favorable combination of low viscosity and excellent flowability. The gel that produced during water absorption was also highly viscous and structurally stable, which helped to maintain the drug delayed release at the injection site. In vitro release assays showed that the in vitro release of RTG-gel followed Ritger-Peppas. The RTG-gel precursor solution was administered by subcutaneous injection, and the results of in vivo pharmacokinetic tests in SD rats showed that the plasma elimination half-life (t1/2) was 59.28 ± 16.08 h; the time to peak blood concentration (Tmax) was 12.00 ± 10.32 h, and the peak concentration (Cmax) was 29.9 ± 10.10 ng/mL. The blood concentration remained above 0.1 ng/mL for 20 days after administration and was still detectable after 31 days of administration, and the bioavailability of RTG can reach 72.59%. The results of in vitro solvent exchange tests showed that the RTG-gel precursor solution undergoes rapid exchange upon contact with PBS, and the diffusion of ethanol can reach 48.1% within 60 min and 80% within 8 h. The results of cytotoxicity test showed 89.27 ± 4.32% cell survival after administration of the drug using RTG-gel. The results of tissue extraction at the administration site showed that healing of the injection site without redness and hemorrhage could be observed after 14 days of injection. The results of tissue section of the administered site showed that the inflammatory cells decreased and granulation tissue appeared after 14 days of administration, and there was basically no inflammatory cell infiltration after 35 days of administration, and the inflammatory reaction was basically eliminated. It shows that RTG-gel has some irritation to the injection site, but it can be recovered by itself in the later stage, and it has good biocompatibility. In summary, RTG-gel might be a potential RTG extended-release formulation for treating PD.
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Affiliation(s)
- Xiaxia Wu
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China
- School of Pharmacy, Yantai University, Yantai, 264005, People's Republic of China
| | - Dongfang Cheng
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China.
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China.
| | - Yue Lu
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China
- School of Pharmacy, Yantai University, Yantai, 264005, People's Republic of China
| | - Rong Rong
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China
| | - Ying Kong
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China
| | - Xiuzhi Wang
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China
| | - Baohua Niu
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, Shandong, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China
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13
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Jokubaite M, Marksa M, Ramanauskiene K. Application of Poloxamer for In Situ Eye Drop Modeling by Enrichment with Propolis and Balsam Poplar Buds Phenolic Compounds. Gels 2024; 10:161. [PMID: 38534579 DOI: 10.3390/gels10030161] [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: 01/08/2024] [Revised: 02/11/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024] Open
Abstract
In situ poloxamer-based gels are increasingly being explored as ocular drug delivery carriers to extend the release of active substances, thereby enhancing bioavailability. The objective of this study was to develop thermally stable in situ gels incorporating balsam poplar bud extract, propolis extract, and p-coumaric acid solution and to evaluate the physicochemical parameters of these gelified eye drops. This research assessed the compatibility of poloxamer-based eye drops with active components, their physicochemical properties, stability post-sterilization and during storage, and the release profiles of the active compounds. Fifteen eye drop formulations were prepared and categorized into three groups based on active components. One of the active components was propolis extract. As an alternative to propolis, eye drops containing the plant precursor, balsam poplar bud extract, were developed. The third group's active component was p-coumaric acid, a dominant phenolic acid in propolis and balsam poplar bud extracts. The study reported phenolic contents of 76.63 CAE mg/g for propolis and 83.25 CAE mg/g for balsam poplar bud aqueous extracts, with balsam poplar bud extracts showing higher SPF values (14.0) compared to propolis (12.7), while p-coumaric acid solution exhibited the highest SPF values (25.5). All eye drops were transparent, with pH values meeting the requirements for ocular drops. Formulations containing 8-10% poloxamer 407 met the criteria for in situ gels. All formulations remained stable for 90 days. Conclusion: The study results indicate that the formulated gels possess suitable physicochemical properties, are resistant to applied autoclaving conditions, and exhibit an extended release of active compounds with an increase in poloxamer content.
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Affiliation(s)
- Monika Jokubaite
- Department of Drug Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, Sukileliai Avenue 13, LT-50162 Kaunas, Lithuania
| | - Mindaugas Marksa
- Department of Analytical & Toxicological Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, Sukileliai Avenue 13, LT-50162 Kaunas, Lithuania
| | - Kristina Ramanauskiene
- Department of Clinical Pharmacy, Faculty of Pharmacy, Lithuanian University of Health Sciences, Sukileliai Avenue 13, LT-50162 Kaunas, Lithuania
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Jing Z, Li W, Liao W, Lv Y, Liu Y, Jiang H, Feng Y. Fructus Xanthii and Magnolia liliiflora Volatile Oils Liposomes-Loaded Thermosensitive in situ Gel for Allergic Rhinitis Management. Int J Nanomedicine 2024; 19:1557-1570. [PMID: 38406606 PMCID: PMC10886817 DOI: 10.2147/ijn.s445240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/01/2024] [Indexed: 02/27/2024] Open
Abstract
Purpose The aim of the present study was to fabricate a Fructus Xanthii and Magnolia liliiflora volatile oils liposomes-loaded thermosensitive in situ gel (gel/LIP/volatile oil) for effectively treating allergic rhinitis via intranasal administration. Patients and Methods Particle size, polymer dispersity index (PDI), entrapment effectiveness, and cumulative drug permeation of the developed liposomes were assessed. Then, a thermoreversible in situ gel was created using the liposomes loaded with volatile oils of Fructus Xanthii and Magnolia liliiflora. The effectiveness of this treatment for allergic rhinitis was confirmed by evaluating nasal symptoms, and hematological results, after injecting the formulation into the ovalbumin (OVA)-sensitized mice, we conducted hematoxylin-eosin staining (HE) and immunohistochemistry to evaluate the outcomes. The effects of the gel/LIP/volatile oil formulation for nasal delivery of volatile oil in the treatment of rhinitis were then assessed. Results The average particle size was 95.1 ± 3.6 nm, and the encapsulation efficiencies of Fructus Xanthii and Magnolia liliiflora volatile oils were 70.42 ± 5.41% and 67.10 ± 6.08%, respectively. Drug loadings of Fructus Xanthii and Magnolia liliiflora volatile oils were 9.10 ± 0.98% and 16.10 ± 1.03%, respectively. The binary formulation produced a gel rapidly in the nasal cavity with a strong mucosal adherence at a temperature of delivering volatile oil to the nasal mucosa steadily and continuously. After nasal administration, the gel/LIP/volatile oil sustained the volatile oil delivery into the mucosa. In comparison to the monolithic formulations, the gel/LIP/volatile oil binary formulation exhibited superior performance in terms of drug delivery capability and pharmacodynamic effects. Conclusion This binary preparation displayed the ability to deliver drugs to the nasal mucosa and exhibited positive pharmacodynamic effects in treating OVA-induced rhinitis in mice. As a result, it has the potential to serve as a delivery platform for Traditional Chinese medicine in the treatment of allergic rhinitis.
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Affiliation(s)
- Zhongxu Jing
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Wenqing Li
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Wei Liao
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Ying Lv
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Yuwei Liu
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Haibo Jiang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
| | - Yufei Feng
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, 150040, People’s Republic of China
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15
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Passos JS, Apolinario AC, Ishida K, Martins TS, Lopes LB. Nanostructured lipid carriers loaded into in situ gels for breast cancer local treatment. Eur J Pharm Sci 2024; 192:106638. [PMID: 37967657 DOI: 10.1016/j.ejps.2023.106638] [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: 07/04/2023] [Revised: 10/18/2023] [Accepted: 11/11/2023] [Indexed: 11/17/2023]
Abstract
In this study, nanostructured lipid carriers (NLC) were developed and employed to obtain in situ thermosensitive formulations for the ductal administration and prolonged retention of drugs as a new strategy for breast cancer local treatment. NLC size was influenced by the type and concentration of the oil phase, surfactants, and drug incorporation, ranging from 221.6 to 467.5 nm. The type of liquid lipid influenced paclitaxel and 5-fluorouracil cytotoxicity, with tributyrin-containing NLC reducing IC50 values by 2.0-7.0-fold compared to tricaprylin NLC in MCF-7, T-47D and MDA-MB-231 cells. In spheroids, the NLCs reduced IC50 compared to either drug solution (3.2-6.2-fold). Although a significant reduction (1.26 points, p < 0.001) on the health index of Galleria mellonella larvae was observed 5 days after NLC administration, survival was not significantly reduced. To produce thermosensitive gels, the NLCs were incorporated in a poloxamer (11 %, w/w) dispersion, which gained viscosity (2-fold) at 37 °C. After 24 h, ∼53 % of paclitaxel and 83 % of 5-fluorouracil were released from the NLC; incorporation in the poloxamer gel further prolonged release. Intraductal administration of NLC-loaded gel increased the permanence of hydrophilic (2.2-3.0-fold) and lipophilic (2.1-2.3-fold) fluorescent markers in the mammary tissue compared to the NLC (as dispersion) and the markers solutions. In conclusion, these results contribute to improving our understanding of nanocarrier design with increased cytotoxicity and prolonged retention for the intraductal route. Tributyrin incorporation increased the cytotoxicity of paclitaxel and 5-fluorouracil in monolayer and spheroids, while NLC incorporation in thermosensitive gels prolonged tissue retention of both hydrophilic and hydrophobic compounds.
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Affiliation(s)
- Julia S Passos
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, 1524 Av. Prof. Lineu Prestes, Sao Paulo SP 05508-000, Brazil
| | - Alexsandra C Apolinario
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, 1524 Av. Prof. Lineu Prestes, Sao Paulo SP 05508-000, Brazil
| | - Kelly Ishida
- Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Tereza S Martins
- Department of Chemistry, Federal University of Sao Paulo (UNIFESP), Diadema, São Paulo, Brazil
| | - Luciana B Lopes
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, 1524 Av. Prof. Lineu Prestes, Sao Paulo SP 05508-000, Brazil.
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16
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Rana SJ, Zafar S, Shahzad A, Basit M, Mudassir J, Akhlaq M, Chohan TA, Arshad MS. Preparation of Tamsulosin Hydrochloride-Loaded Mucoadhesive In Situ Gelling Polymeric Formulation for Nasal Delivery in Geriatrics. AAPS PharmSciTech 2023; 24:242. [PMID: 38017208 DOI: 10.1208/s12249-023-02700-x] [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: 08/10/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023] Open
Abstract
This study aimed to prepare tamsulosin hydrochloride (HCl)-loaded in situ gelling formulation by using hydroxypropyl methylcellulose (HPMC), gellan gum, poloxamer 188, and benzalkonium chloride. Physicochemical evaluation of formulations included determination of pH, viscosity, gelation time, gel strength, drug content, and sterility. In silico study was performed to analyze interactions between polymers, drug, and mucin glycoprotein. In vitro degradation time, drug release, ex vivo mucoadhesion time, permeation, in vivo pharmacokinetics, and stability studies were performed to assess the formulation. Formulations were transparent and displayed acceptable physicochemical attributes. Tamsulosin HCl and polymers interacted via non-covalent interactions. HPMC formed hydrogen bonds, hydrophobic and van der Waals interactions with mucin protein while the drug formed hydrogen bonds only. Gel formulation degraded in simulated nasal fluid within 24 h. In situ gelling formulation showed 83.8 ± 1.7% drug release and remained adhered to the mucosa for 24.5 ± 1 h. A higher (~ 1.85 times) drug permeation was recorded through mucosa within 6 h by in situ gelling formulation when compared to control counterparts (aqueous solution of drug and in situ gelling formulation without poloxamer 188). Nasal administration of tamsulosin HCl by using in situ gelling formulation led to a ~ 3.3 and ~ 3.5 times, respectively, higher Cmax (maximum plasma concentration) and AUCtotal (total area under the curve) than the orally administered aqueous solution. Relative bioavailability of drug delivered by nasal in situ gelling formulation was 3.5 times the oral counterpart. These results indicated that the prepared in situ gelling formulation can act as a promising candidate for systemic administration of tamsulosin HCl.
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Affiliation(s)
- Sadia Jafar Rana
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Saman Zafar
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Aqeel Shahzad
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Basit
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Jahanzeb Mudassir
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Akhlaq
- Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
| | - Tahir Ali Chohan
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Wang Q, Wu Z, Wang F, Zhang H, Gan L. Tacrolimus-Loaded Cationic Nanoemulsion In-Situ Gel System: In-Vitro Characterization and Performance in a Dry-Eye Rabbit Model. J Pharm Sci 2023; 112:2790-2798. [PMID: 37453530 DOI: 10.1016/j.xphs.2023.05.001] [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: 01/04/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 07/18/2023]
Abstract
Dry eye disease (DED) is a highly prevalent ocular surface disease that affects life quality and reduces productivity at work. The purpose of this study is to improve the efficacy of tacrolimus (FK506) in the treatment of DED using the special eye surface retention properties of cationic nanoemulsion (CNE) modified by thermosensitive in-situ gel (ISG) (CNE-ISG). The precorneal retention of CNE-ISG containing 0.05% FK506 (50 min) was longer than that of CNE containing 0.05% FK506 (25 min) and commercial suspension containing 0.1% FK506 (Talymus®) (10 min). Successfully modeled dry-eye rabbits were treated with 0.05% CNE-ISG (twice/day), 0.05% CNE and 0.1% suspension (Talymus®) (thrice/day). Schirmer's tear secretion test showed no significant difference between the CNE-ISG group and the healthy group after 5 days of treatment (p > 0.05). The results of a tear ferning test (TFT) showed that the tear-fern-like crystal branches in the CNE-ISG group returned to normal after 5 days of treatment. Histological analysis showed that the number of goblet cells in the CNE-ISG group significantly increased. HET-CAM stimulation test showed that the CNE-ISG group had no ocular irritation. The above results indicated that CNE-ISG might be a promising delivery system and as an effective dosage form was employed for FK506 in the treatment of DED.
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Affiliation(s)
- Qiuhe Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Zheng Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Feifei Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Hua Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Li Gan
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
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Miao G, He Y, Lai K, Zhao Y, He P, Tan G, Wang X. Accelerated blood clearance of PEGylated nanoparticles induced by PEG-based pharmaceutical excipients. J Control Release 2023; 363:12-26. [PMID: 37717659 DOI: 10.1016/j.jconrel.2023.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
PEGylated nanomedicines have been extensively developed and applied to cancer therapy. However, the antitumor efficacy of these nanoparticles is hampered by the accelerated blood clearance (ABC) effect caused by anti-PEG antibodies in vivo. There is still limited understanding about the cause of pre-existing anti-PEG antibodies in the human body. Herein, we discovered that PEG-based pharmaceutical excipients, commonly used in clinical and daily settings, could induce anti-PEG antibodies in vivo and lead to considerable potential clinical impacts on pharmacokinetics and pharmacodynamics of PEGylated nanoparticles. Specifically, we investigated the ability of poloxamer 188 (F68) and poloxamer 407 (F127), the two most frequently used PEG-based pharmaceutical excipients, to elicit the production of anti-PEG antibodies and influence the pharmacokinetics of PEGylated nanoparticles, with PEGylated liposome nanoparticles (L-NPs) as a model. Anti-PEG IgG and IgM levels were significantly boosted 3.8- and 32.2-fold, respectively, after pre-injection with F68, leading to rapid clearance of subsequently injected L-NPs from circulation due to the capture by neutrophils and monocytes. However, pre-injection of F127 did not induce the production of anti-PEG IgG, although there was a 7.7-fold increase in IgM level, which resulted in minimal effect on circulation time of L-NPs. Furthermore, the potential clinical impacts of F68 and F127 were further inspected for PEGylated liposomal doxorubicin (PLD). It was found that administering F68 prior to treatment led to over a one-third decrease in the antitumor effectiveness of PLD, while F127 had a negligible impact. Our study elucidates the mechanism by which PEG-based pharmaceutical excipients influence the effectiveness of PEGylated nanomedicines. It also highlights the significance of considering the potential for an ABC effect induced by PEG-based pharmaceutical excipients in patients.
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Affiliation(s)
- Guifeng Miao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Yuejian He
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Keren Lai
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Yan Zhao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Peiyi He
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Guozhu Tan
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Xiaorui Wang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China.
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Yang Q, Tan T, He Q, Guo C, Chen D, Tan Y, Feng J, Song X, Gong T, Li J. Combined Amphiphilic Silybin Meglumine Nanosuspension Effective Against Hepatic Fibrosis in Mice Model. Int J Nanomedicine 2023; 18:5197-5211. [PMID: 37720597 PMCID: PMC10505037 DOI: 10.2147/ijn.s407762] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/06/2023] [Indexed: 09/19/2023] Open
Abstract
Introduction Silybin (SLB) as an effective hepatoprotective phytomedicine has been limited by its hydrophobicity, poor bioavailability and accumulation at lesion sites. Additionally, present drug loading methods are impeded by their low drug loading capacity, potential hazard of materials and poor therapeutic effects. Consequently, there is a pressing need to devise an innovative approach for preparing nanosuspensions loaded with both SLB and Silybin Meglumine salt (SLB-M), as well as to investigate the therapeutic effects of SLB nanosuspensions against hepatic fibrosis. Methods The SLB nanosuspension (NS-SLB) was prepared and further modified with a hyaluronic acid-cholesterol conjugate (NS-SLB-HC) to improve the CD44 targeting proficiency of NS-SLB. To validate the accumulation of CD44 and ensure minimal cytotoxicity, cellular uptake and cytotoxicity assessments were carried out for the nanosuspensions. Western blotting was employed to evaluate the anti-hepatic fibrosis efficacy in LX-2 cells by inhibiting the secretion of collagen I. Hepatic fibrosis mouse models were used to further confirm the effectiveness of NS-SLB and NS-SLB-HC against hepatic fibrosis in vivo. Results Uniform nanosuspensions were prepared through self-assembly, achieving high drug loading rates of 89.44% and 60.67%, respectively. Both SLB nanosuspensions showed minimal cytotoxicity in cellular environments and mitigated hepatic fibrosis in vitro. NS-SLB-HC was demonstrated to target activated hepatic stellate cells by receptor-ligand interaction between HA and CD44. They can reverse hepatic fibrosis in vivo by downregulating TGF-β and inhibiting the secretion of α-SMA and collagen I. Conclusion Designed as a medical excipient analogue, SLB-M was aimed to establish an innovative nanosuspension preparation method, characterized by high drug loading capacity and a notable impact against hepatic fibrosis.
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Affiliation(s)
- Qin Yang
- School of Pharmacy, North Sichuan Medical College, Nanchong637100, People’s Republic of China
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Tiantian Tan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Qin He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Chenqi Guo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Dan Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Yulu Tan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Jiaxing Feng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Xu Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Tao Gong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, People’s Republic of China
| | - Jia Li
- West China Hospital of Stomatology, Sichuan University, Chengdu610041, People’s Republic of China
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Bakhrushina EO, Dubova AI, Nikonenko MS, Grikh VV, Shumkova MM, Korochkina TV, Krasnyuk II, Krasnyuk II. Thermosensitive Intravitreal In Situ Implant of Cefuroxime Based on Poloxamer 407 and Hyaluronic Acid. Gels 2023; 9:693. [PMID: 37754374 PMCID: PMC10530203 DOI: 10.3390/gels9090693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
The main method of treatment and prevention of endophthalmitis is a combination of intravitreal and topical administration of antibiotics, such as cefuroxime moxifloxacin or vancomycin. However, this method is ineffective due to the rapid elimination of the drug. This problem can be solved with the help of intravitreal in situ injection systems, which are injected with a syringe into the vitreous body and provide prolonged action of the drug at the focus of inflammation. Under the influence of temperature, the liquid drug undergoes a phase transition and turns into a gel after injection. This ensures its prolonged action. The study aimed to develop an intravitreal in situ cefuroxime delivery system for the treatment of endophthalmitis based on a thermosensitive biodegradable composition of poloxamer 407 and hyaluronic acid. A combination of poloxamer Kolliphor® P407, Kolliphor® P188, and PrincipHYAL® hyaluronic acids of different molecular weights was used as a delivery system. The potency of cefuroxime solid dispersion with polyvinylpyrrolidone-10000, polyethylene glycol-400, and polyethylene glycol-1500 in a 1:2 ratio was studied for prolonged action compared to cefuroxime substance. The experimental formulations were studied for the parameters of gelation temperature in a long-term test (4 months), pH, and release of cefuroxime using dialysis bags. To study the distribution parameter in the vitreous body, an in vitro model (1/13) was developed, which was a hollow agar sphere filled with 1% (w/v) polyacrylate gel. For the superior formulations, a HET-CAM test (chorioallantoic membrane test) was performed to determine the absence of irritant effects. According to the study results, a formulation containing a solid dispersion of cefuroxime:PEG-400 (1:2), the matrix of which contained 18% (w/v) Kolliphor® P407 poloxamer, 3% (w/v) Kolliphor® P188 poloxamer, and 0.5% (w/v) hyaluronic acid (1400-1800), was selected. This sample had an average gelation temperature of 34.6 °C, pH 6.7 ± 0.5, and a pronounced prolonged effect. Only 7.6% was released in 3 h of the experiment, whereas about 38% of cefuroxime was released in 72 h. No irritant effect on the chorioallantoic membrane was observed for any formulations studied.
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Affiliation(s)
- Elena O. Bakhrushina
- Department of Pharmaceutical Technology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (E.O.B.); (T.V.K.); (I.I.K.)
| | - Anastasia I. Dubova
- Student of Educational Department, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (A.I.D.); (M.S.N.)
| | - Maria S. Nikonenko
- Student of Educational Department, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (A.I.D.); (M.S.N.)
| | - Viktoriya V. Grikh
- Department of Analytical, Physical and Colloidal Chemistry, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (V.V.G.); (I.I.K.J.)
| | - Marina M. Shumkova
- Department of Pharmaceutical Technology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (E.O.B.); (T.V.K.); (I.I.K.)
- PHARMA-PREMIUM Scientific Educational Center, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia
| | - Tatyana V. Korochkina
- Department of Pharmaceutical Technology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (E.O.B.); (T.V.K.); (I.I.K.)
| | - Ivan I. Krasnyuk
- Department of Analytical, Physical and Colloidal Chemistry, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (V.V.G.); (I.I.K.J.)
| | - Ivan I. Krasnyuk
- Department of Pharmaceutical Technology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (E.O.B.); (T.V.K.); (I.I.K.)
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21
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Marques AC, Costa PC, Velho S, Amaral MH. Injectable Poloxamer Hydrogels for Local Cancer Therapy. Gels 2023; 9:593. [PMID: 37504472 PMCID: PMC10379388 DOI: 10.3390/gels9070593] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023] Open
Abstract
The widespread push to invest in local cancer therapies comes from the need to overcome the limitations of systemic treatment options. In contrast to intravenous administration, local treatments using intratumoral or peritumoral injections are independent of tumor vasculature and allow high concentrations of therapeutic agents to reach the tumor site with minimal systemic toxicity. Injectable biodegradable hydrogels offer a clear advantage over other delivery systems because the former requires no surgical procedures and promotes drug retention at the tumor site. More precisely, in situ gelling systems based on poloxamers have garnered considerable attention due to their thermoresponsive behavior, biocompatibility, ease of preparation, and possible incorporation of different anticancer agents. Therefore, this review focuses on the use of injectable thermoresponsive hydrogels based on poloxamers and their physicochemical and biological characterization. It also includes a summary of these hydrogel applications in local cancer therapies using chemotherapy, phototherapy, immunotherapy, and gene therapy.
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Affiliation(s)
- Ana Camila Marques
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Paulo Cardoso Costa
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Sérgia Velho
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- IPATIMUP—Institute of Molecular Pathology and Immunology of the University of Porto, R. Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
| | - Maria Helena Amaral
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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22
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Dalgakiran EA, Ergin AD, Kacar G. Properties of Pluronic F68 and F127 micelles interacting furosemide from coarse-grained molecular simulations as validated by experiments. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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23
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Tambe SM, Jain DD, Hasmukh Mehta C, Ashwini T, Yogendra Nayak U, Amin PD. Hot-melt extruded in situ gelling systems (MeltDrops Technology): Formulation development, in silico modelling and in vivo studies. Eur J Pharm Biopharm 2023:S0939-6411(23)00122-4. [PMID: 37182553 DOI: 10.1016/j.ejpb.2023.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
In situ gelling systems (ISGS) can prolong retention time and bioavailability of ophthalmic solutions. The complexity and cost of ISGS avert their industrial scale-up and clinical implementation. In this study, we demonstrate novel application of hot-melt extrusion (HME) technology for continuous manufacturing of ISGS (MeltDrops Technology). Timolol maleate (TIM) and dorzolamide hydrochloride (DRZ) loaded MeltDrops were successfully developed using HME for glaucoma management, thereby resolving issues with batch manufacturing of ISGS, prolonging retention time thus improving bioavailability. The MeltDrops technology involves one-step, i.e., passing all the ingredients through an extruder at a screw speed between 20-50 rpm and barrel temperature of 80 °C. The comparative evaluation of MeltDrops and batch-processed ISGS demonstrated that MeltDrops exhibited better physical and chemical content uniformity. The extrusion temperature and screw speed were critical factors influencing content uniformity and properties of the MeltDrops. MeltDrops showed sustained drug release for >12 hours in vitro (TIM= 83.07%; DRZ = 60.43%, 12hours) versus marketed eyedrops. The developed MeltDrops followed Peppas-Sahlin model, combining Fickian diffusion and swelling processes. The in vivo study in New Zealand rabbits revealed superior effectiveness and safety of the MeltDrops as compared to the marketed eyedrops. Herein we conclude, MeltDrops would serve as a cutting-edge platform technology that can be used to manufacture various ISGS with one-step processability, cost-effectiveness, and improved product quality, which are otherwise processed by batch manufacturing that involves numerous complex processing steps.
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Affiliation(s)
- Srushti M Tambe
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Divya D Jain
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Chetan Hasmukh Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - T Ashwini
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Purnima D Amin
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India.
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Galindo-Camacho RM, Haro I, Gómara MJ, Espina M, Fonseca J, Martins-Gomes C, Camins A, Silva AM, García ML, Souto EB. Cell penetrating peptides-functionalized Licochalcone-A-loaded PLGA nanoparticles for ocular inflammatory diseases: evaluation of in vitro anti-proliferative effects, stabilization by freeze-drying and characterization of an in-situ forming gel. Int J Pharm 2023; 639:122982. [PMID: 37116598 DOI: 10.1016/j.ijpharm.2023.122982] [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: 12/02/2022] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Licochalcone-A (Lico-A) PLGA NPs functionalized with cell penetrating peptides B6 and Tet-1 are proposed for the treatment of ocular anti-inflammatory diseases. In this work, we report the in vitro biocompatibility of cell penetrating peptides-functionalized Lico-A-loaded PLGA NPs in Caco-2 cell lines revealing a non-cytotoxic profile, and their anti-inflammatory activity against RAW 264.7 cell lines. Given the risk of hydrolysis of the liquid suspensions, freeze-drying was carried out testing different cryoprotectants (e.g., disaccharides, alcohols, and oligosaccharide-derived sugar alcohol) to prevent particle aggregation and mitigate physical stress. As the purpose is the topical eye instillation of the nanoparticles, to reduce precorneal wash-out, increase residence time and thus Lico-A bioavailability, an in-situ forming gel based on poloxamer 407 containing Lico-A loaded PLGA nanoparticles functionalized with B6 and Tet-1 for ocular administration has been developed. Developed formulations remain in a flowing semi-liquid state under non-physiological conditions and transformed into a semi-solid state under ocular temperature conditions (35 °C), which is beneficial for ocular administration. The pH, viscosity, texture parameters and gelation temperature results met the requirements for ophthalmic formulations. The gel has characteristics of viscoelasticity, suitable mechanical and mucoadhesive performance which facilitate its uniform distribution over the conjunctiva surface. In conclusion, we anticipate the potential clinical significance of our developed product provided that a synergistic effect is achieved by combining the high anti-inflammatory activity of Lico-A delivered by PLGA NPs with B6 and Tet-1 for site-specific targeting in the eye, using an in-situ forming gel.
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Affiliation(s)
- Ruth M Galindo-Camacho
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; Department of Pharmacy and Pharmaceutical Technology, and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; Unit of Synthesis and Biomedical Applications of Peptides, IQAC-CSIC, 08034 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Isabel Haro
- Unit of Synthesis and Biomedical Applications of Peptides, IQAC-CSIC, 08034 Barcelona, Spain
| | - María J Gómara
- Unit of Synthesis and Biomedical Applications of Peptides, IQAC-CSIC, 08034 Barcelona, Spain
| | - Marta Espina
- Department of Pharmacy and Pharmaceutical Technology, and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Joel Fonseca
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Carlos Martins-Gomes
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal; Centre for Research and Technology of Agro-Environmental and Biological Sciences, CITAB, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal
| | - Antoni Camins
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain; Department of Pharmacology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain
| | - Amélia M Silva
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal; Centre for Research and Technology of Agro-Environmental and Biological Sciences, CITAB, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal
| | - María L García
- Department of Pharmacy and Pharmaceutical Technology, and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; UCIBIO - Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
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25
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Pérez-González N, Espinoza LC, Rincón M, Sosa L, Mallandrich M, Suñer-Carbó J, Bozal-de Febrer N, Calpena AC, Clares-Naveros B. Gel Formulations with an Echinocandin for Cutaneous Candidiasis: The Influence of Azone and Transcutol on Biopharmaceutical Features. Gels 2023; 9:gels9040308. [PMID: 37102920 PMCID: PMC10138157 DOI: 10.3390/gels9040308] [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: 02/26/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/28/2023] Open
Abstract
Caspofungin is a drug that is used for fungal infections that are difficult to treat, including invasive aspergillosis and candidemia, as well as other forms of invasive candidiasis. The aim of this study was to incorporate Azone in a caspofungin gel (CPF-AZ-gel) and compare it with a promoter-free caspofungin gel (CPF-gel). An in vitro release study using a polytetrafluoroethylene membrane and ex vivo permeation into human skin was adopted. The tolerability properties were confirmed by histological analysis, and an evaluation of the biomechanical properties of the skin was undertaken. Antimicrobial efficacy was determined against Candida albicans, Candida glabrata, Candida parapsilosis, and Candida tropicalis. CPF-AZ-gel and CPF-gel, which had a homogeneous appearance, pseudoplastic behavior, and high spreadability, were obtained. The biopharmaceutical studies confirmed that caspofungin was released following a one-phase exponential association model and the CPF-AZ gel showed a higher release. The CPF-AZ gel showed higher retention of caspofungin in the skin while limiting the diffusion of the drug to the receptor fluid. Both formulations were well-tolerated in the histological sections, as well as after their topical application in the skin. These formulations inhibited the growth of C. glabrata, C. parapsilosis, and C. tropicalis, while C. albicans showed resistance. In summary, dermal treatment with caspofungin could be used as a promising therapy for cutaneous candidiasis in patients that are refractory or intolerant to conventional antifungal agents.
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Affiliation(s)
- Noelia Pérez-González
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University Campus of Cartuja, University of Granada, 18071 Granada, Spain
| | | | - María Rincón
- Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona (UB), C. Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Lilian Sosa
- Pharmaceutical Technology Research Group, Faculty of Chemical Sciences and Pharmacy, National Autonomous University of Honduras (UNAH), Tegucigalpa 11101, Honduras
| | - Mireia Mallandrich
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Departament de Farmàcia, Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Joaquim Suñer-Carbó
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Departament de Farmàcia, Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Nuria Bozal-de Febrer
- Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Ana Cristina Calpena
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Departament de Farmàcia, Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Beatriz Clares-Naveros
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University Campus of Cartuja, University of Granada, 18071 Granada, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain
- Biosanitary Institute of Granada (ibs.GRANADA), 18012 Granada, Spain
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Gadhave D, Gupta A, Khot S, Tagalpallewar A, Kokare C. Nose-to-brain delivery of paliperidone palmitate poloxamer-guar gum nanogel: Formulation, optimization and pharmacological studies in rats. ANNALES PHARMACEUTIQUES FRANÇAISES 2023; 81:315-333. [PMID: 36037930 DOI: 10.1016/j.pharma.2022.08.010] [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: 03/24/2022] [Revised: 07/01/2022] [Accepted: 08/23/2022] [Indexed: 10/15/2022]
Abstract
Oral delivery of paliperidone palmitate (PPD), a potent antipsychotic agent, has been reported with a potential risk of very serious drug-induced adverse events such as tachycardia, hyperprolactinemia, sexual dysfunction, and neutropenia. Alternatively, the potential of nasal delivery has also been explored to treat CNS complications by delivering the medicines directly to the brain bypassing the blood-brain barrier. Hence, the objectives of current work were to formulate, design, optimize, and investigate the therapeutic potency of PPD-loaded intranasal in-situ gel (PPGISG) in the treatment of schizophrenia. PPD-nanoemulsion (PNE) was fabricated using water titration technique, was further optimized via Box-Behnken design. Furthermore, the optimized PNE was evaluated for parameters such as globule size, polydispersity index, zeta potential, and % entrapment efficiency were found to be 21.44±1.58nm, 0.268±0.02, -25.56±1.6mV, and 99.89±0.25%, respectively. PNE was further converted to PPGISG utilizing two polymers, poloxamer, and guar gum. Simultaneously, ex-vivo permeation for PNE, PPGISG, and PPD-suspension was found to be 211.40±4.8, 297.89±3.9 and 98.66±1.6μg/cm2, respectively. While PPGISG nanoparticles showed 1.58 and 5.65-folds more Jss than PNE and PPD-suspension. Behavioral studies confirmed that no extrapyramidal symptoms were observed in experimental animals post intranasal administration. Finally, the outcomes of the in-vivo hemato-compatibility study proved that intranasal formulation did not cause any alteration in leukocytes, RBCs, and neutrophils count. Therefore, intranasal delivery of PPGISG can be considered a novel tool for the safe delivery of PPD in schizophrenic patients.
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Affiliation(s)
- D Gadhave
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India; Department of Pharmaceutics, Dattakala Shikshan Sanstha's, Dattakala College of Pharmacy (Affiliated to Savitribai Phule Pune University), Swami Chincholi, Daund, Pune, 413130, Maharashtra, India.
| | - A Gupta
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
| | - S Khot
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
| | - A Tagalpallewar
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India; School of Pharmacy, Department of Pharmaceutics, MIT World Peace University, Pune, 411038, Maharashtra, India
| | - C Kokare
- Department of Pharmaceutics, Sinhgad Technical Education Society's, Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University), Narhe, Pune 411041, Maharashtra, India
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27
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Naik K, Du Toit LC, Ally N, Choonara YE. Advances in Polysaccharide- and Synthetic Polymer-Based Vitreous Substitutes. Pharmaceutics 2023; 15:566. [PMID: 36839888 PMCID: PMC9961338 DOI: 10.3390/pharmaceutics15020566] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/01/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023] Open
Abstract
The vitreous humour is a gel-like structure that composes the majority of each eye. It functions to provide passage of light, be a viscoelastic dampener, and hold the retina in place. Vitreous liquefaction causes retinal detachment and retinal tears requiring pars plana vitrectomy for vitreous substitution. An ideal vitreous substitute should display similar mechanical, chemical, and rheological properties to the natural vitreous. Currently used vitreous substitutes such as silicone oil, perfluorocarbon liquids, and gases cannot be used long-term due to adverse effects such as poor retention time, cytotoxicity, and cataract formation. Long-term, experimental vitreous substitutes composed of natural, modified and synthetic polymers are currently being studied. This review discusses current long- and short-term vitreous substitutes and the disadvantages of these that have highlighted the need for an ideal vitreous substitute. The review subsequently focuses specifically on currently used polysaccharide- and synthetic polymer-based vitreous substitutes, which may be modified or functionalised, or employed as the derivative, and discusses experimental vitreous substitutes in these classes. The advantages and challenges associated with the use of polymeric substitutes are discussed. Innovative approaches to vitreous substitution, namely a novel foldable capsular vitreous body, are presented, as well as future perspectives related to the advancement of this field.
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Affiliation(s)
- Kruti Naik
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Lisa C. Du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Naseer Ally
- Division of Ophthalmology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Yahya E. Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
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Nair AB, Chaudhary S, Jacob S, Patel D, Shinu P, Shah H, Chaudhary A, Aldhubiab B, Almuqbil RM, Alnaim AS, Alqattan F, Shah J. Intranasal Administration of Dolutegravir-Loaded Nanoemulsion-Based In Situ Gel for Enhanced Bioavailability and Direct Brain Targeting. Gels 2023; 9:gels9020130. [PMID: 36826300 PMCID: PMC9956165 DOI: 10.3390/gels9020130] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
Dolutegravir's therapeutic effectiveness in the management of neuroAIDS is mainly limited by its failure to cross the blood-brain barrier. However, lipid-based nanovesicles such as nanoemulsions have demonstrated their potential for the brain targeting of various drugs by intranasal delivery. Thus, the purpose of this study was to develop a Dolutegravir-loaded nanoemulsion-based in situ gel and evaluate its prospective for brain targeting by intranasal delivery. Dolutegravir-loaded nanoemulsions were prepared using dill oil, Tween® 80, and Transcutol® P. Optimization of the nanoemulsion particle size and drug release was carried out using a simplex lattice design. Formulations (F1-F7 and B1-B6) were assessed for various pharmaceutical characteristics. Ex vivo permeation and ciliotoxicity studies of selected in situ gels (B1) were conducted using sheep nasal mucosa. Drug targeting to the brain was assessed in vivo in rats following the nasal delivery of B1. The composition of oil, surfactant, and cosurfactant significantly (p < 0.05) influenced the dependent variables (particle size and % of drug release in 8 h). Formulation B1 exhibits pharmaceutical characteristics that are ideal for intranasal delivery. The mucosal steady-state flux noticed with BI was significantly greater (p < 0.005) than for the control gel. A histopathology of nasal mucosa treated with BI showed no signs of toxicity or cellular damage. Intranasal administration of B1 resulted in greater Cmax (~six-fold, p < 0.0001) and AUC0-α (~five-fold, p < 0.0001), and decreased Tmax (1 h) values in the brain, compared to intravenous administration. Meantime, the drug level in the plasma was relatively low, suggesting less systemic exposure to Dolutegravir through intranasal delivery. In summary, the promising data observed here signifies the prospective of B1 to enhance the brain targeting of Dolutegravir by intranasal delivery and it could be used as a feasible and practicable strategy for the management of neuroAIDS.
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Affiliation(s)
- Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Correspondence: (A.B.N.); (J.S.); Tel.: +966-536219868 (A.B.N.); +91-9909007411 (J.S.)
| | - Sunita Chaudhary
- Department of Pharmaceutics, Arihant School of Pharmacy & BRI, Adalaj, Gandhinagar 382421, India
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman 4184, United Arab Emirates
| | - Dhwani Patel
- Department of Pharmaceutics, Arihant School of Pharmacy & BRI, Adalaj, Gandhinagar 382421, India
| | - Pottathil Shinu
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Hiral Shah
- Department of Pharmaceutics, Arihant School of Pharmacy & BRI, Adalaj, Gandhinagar 382421, India
| | - Ankit Chaudhary
- Department of Quality Assurance, Saraswati Institute of Pharmaceutical Sciences, Gandhinagar 382355, India
| | - Bandar Aldhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Rashed M. Almuqbil
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Ahmed S. Alnaim
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Fatemah Alqattan
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Jigar Shah
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, India
- Correspondence: (A.B.N.); (J.S.); Tel.: +966-536219868 (A.B.N.); +91-9909007411 (J.S.)
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29
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Victorelli FD, Rodero CF, Lutz-Bueno V, Chorilli M, Mezzenga R. Amyloid Fibrils Enhance the Topical Bio-Adhesivity of Liquid Crystalline Mesophase-Based Drug Formulations. Adv Healthc Mater 2023; 12:e2202720. [PMID: 36681654 DOI: 10.1002/adhm.202202720] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/08/2023] [Indexed: 01/23/2023]
Abstract
Despite their distinctive secondary structure based on cross β-strands, amyloid fibrils (AF) are stable fibrous protein aggregates with features similar to collagen, one of the main components of the extracellular matrix, and thus constitute a potential scaffold for enhancing cell adhesion for topical applications. Here, the contribution of AF to skin bio-adhesivity aiming toward topical treatments is investigated. Liquid crystalline mesophase (LCM) based on phytantriol is formulated, with the aqueous phase containing either water or a solution of 4 wt% amyloid fibrils. Then resveratrol is added as a model anti-inflammatory molecule. The developed LCM presents a double gyroid Ia3d mesophase. The incorporation of AF into the LCM increases its bio-adhesive properties. In vitro release and ex vivo permeation and retention confirm the controlled release property of the system, and that resveratrol is retained in epidermis and dermis, but is also permeated through the skin. All formulations are biocompatible with L929 cells. The in vivo assay confirms that systems with AF lead to a higher anti-inflammatory effect of resveratrol. These results confirm the hypothesis that the incorporation of AF in the LCM increases the bio-adhesiveness and efficiency of the system for topical treatment, and consequently, the therapeutical action of the encapsulated drug.
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Affiliation(s)
| | - Camila Fernanda Rodero
- Department of Drugs and Medicine, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, 14800-903, Brazil
| | | | - Marlus Chorilli
- Department of Drugs and Medicine, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, São Paulo, 14800-903, Brazil
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zurich, Zurich, 8092, Switzerland.,Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
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Asendrych-Wicik K, Zarczuk J, Walaszek K, Ciach T, Markowicz-Piasecka M. Trends in development and quality assessment of pharmaceutical formulations - F2α analogues in the glaucoma treatment. Eur J Pharm Sci 2023; 180:106315. [PMID: 36367507 DOI: 10.1016/j.ejps.2022.106315] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/10/2022] [Accepted: 10/27/2022] [Indexed: 12/15/2022]
Abstract
The ocular delivery route presents a number of challenges in terms of drug administration and bioavailability. The low bioavailability following topical ophthalmic administration shows that there is a clear need for in-depth research aimed at finding both more efficacious molecules and formulations precisely targeted at the site of action. Continuous technological development will eventually result in improved bioavailability, lower dosages, reduced toxicity, fewer adverse effects, and thus better patient compliance and treatment efficacy. Technological development, as well as increasingly stringent quality requirements, help stimulate analytical progress. This is also clearly evident in the case of medicinal products used in the treatment of glaucoma, which are the subject of this review. Impurity profiling of PGF2α analogues, either in the pure substance or in the finished formulation, is a crucial step in assessing their quality. The development of specific, accurate and precise stability-indicating analytical methods for determining the content and related substances seems to be an important issue in relation to this tasks. A total of 27 official and in-house analytical methods are presented that are used for the analysis of latanoprost, travoprost and bimatoprost. The conditions for chromatographic separation with UV or MS/MS detection and the available results obtained during method validation are described. In addition, several aspects are discussed, with particular emphasis on the instability of the analogues in aqueous solution and the phenomenon of isomerism, which affects a potentially large number of degradation products.
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Affiliation(s)
- Katarzyna Asendrych-Wicik
- Analytical Laboratory, Research and Development Department, Polfa Warszawa S.A., ul. Karolkowa 22/24, Warsaw 01-207, Poland; Department of Pharmaceutical Chemistry, Drug Analysis and Radiopharmacy, Medical University of Łódź, ul. Muszyńskiego 1, Łódź 90-151, Poland
| | - Jakub Zarczuk
- Liquid Dosage Form Laboratory, Research and Development Department, Polfa Warszawa S.A., Karolkowa 22/24, Warsaw 01-207, Poland; BioMedical Engineering Laboratory Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Waryńskiego 1, Warsaw 00-645, Poland.
| | - Katarzyna Walaszek
- Technical Research and Development Quality Assurance, Polpharma Bioologics, ul. Spółdzielcza 4, Duchnice 05-850, Poland
| | - Tomasz Ciach
- BioMedical Engineering Laboratory Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Waryńskiego 1, Warsaw 00-645, Poland
| | - Magdalena Markowicz-Piasecka
- Department of Pharmaceutical Chemistry, Drug Analysis and Radiopharmacy, Medical University of Łódź, ul. Muszyńskiego 1, Łódź 90-151, Poland
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Almehmady AM, El-Say KM, Mubarak MA, Alghamdi HA, Somali NA, Sirwi A, Algarni R, Ahmed TA. Enhancing the Antifungal Activity and Ophthalmic Transport of Fluconazole from PEGylated Polycaprolactone Loaded Nanoparticles. Polymers (Basel) 2022; 15:polym15010209. [PMID: 36616558 PMCID: PMC9823753 DOI: 10.3390/polym15010209] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
Fungal eye infections are caused mainly by an eye injury and can result in serious eye damage. Fluconazole (FLZ), a broad-spectrum antifungal agent, is a poorly soluble drug with a risk of hepatotoxicity. This work aimed to investigate the antifungal activity, ocular irritation, and transport of FLZ-loaded poly (ε-caprolactone) nanoparticles using a rabbit eye model. Three formulation factors affecting the nanoparticle's size, zeta potential, and entrapment efficiency were optimized utilizing the Box-Behnken design. Morphological characteristics and antifungal activity of the optimized nanoparticles were studied. The optimized nanoparticles were loaded into thermosensitive in situ hydrogel and hydroxypropylmethylcellulose (HPMC) hydrogel ophthalmic formulations. The rheological behavior, in vitro release and in vivo corneal transport were investigated. Results revealed that the percentage of poly (ε-caprolactone) in the nanoparticle matrix, polymer addition rate, and mixing speed significantly affected the particle size, zeta potential, and entrapment efficiency. The optimized nanoparticles were spherical in shape and show an average size of 145 nm, a zeta potential of -28.23 mV, and a FLZ entrapment efficiency of 98.2%. The antifungal activity of FLZ-loaded nanoparticles was significantly higher than the pure drug. The developed ophthalmic formulations exhibited a pseudoplastic flow, prolonged the drug release and were found to be non-irritating to the cornea. The prepared FLZ pegylated nanoparticles were able to reach the posterior eye segment without eye irritation. As a result, the developed thermosensitive in situ hydrogel formulation loaded with FLZ polymeric nanoparticles is a promising drug delivery strategy for treating deep fungal eye infections.
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Affiliation(s)
- Alshaimaa M. Almehmady
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (A.M.A.); (T.A.A.); Tel.: +966-2-640-0000 (ext. 24057) (A.M.A.); +966-2-640-0000 (ext. 22250) (T.A.A.)
| | - Khalid M. El-Say
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Manal A. Mubarak
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Haneen A. Alghamdi
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Njood A. Somali
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Alaa Sirwi
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rahmah Algarni
- Pharmaceutical Care Department, King Abdulaziz University Hospital, Jeddah 21589, Saudi Arabia
| | - Tarek A. Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (A.M.A.); (T.A.A.); Tel.: +966-2-640-0000 (ext. 24057) (A.M.A.); +966-2-640-0000 (ext. 22250) (T.A.A.)
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Campanholi KDSS, Junior RCDS, Jaski JM, da Silva JB, de Oliveira MC, dos Santos RS, Pozza MSDS, de Castro-Hoshino LV, Baesso ML, Cardozo-Filho L, Bruschi ML, Caetano W. Thermo and Photoresponsive Emulgel Loaded with Copaifera reticulata Ducke and Chlorophylls: Rheological, Mechanical, Photodynamic and Drug Delivery Properties in Human Skin. Pharmaceutics 2022; 14:pharmaceutics14122798. [PMID: 36559290 PMCID: PMC9785550 DOI: 10.3390/pharmaceutics14122798] [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: 11/09/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Recently, the number of new cases of cutaneous leishmaniasis has been of concern among health agencies. Research that offers new therapeutic alternatives is advantageous, especially those that develop innovative drugs. Therefore, this paper presents the incorporation of Copaifera reticulata Ducke and chlorophyll extract into Pluronic®® F127 and Carbopol gels, under optimized polymer quantities. The chlorophyll extract (rich in photosensitizing compounds) was obtained by continuous-flow pressurized liquid extraction (PLE), a clean, environmentally friendly method. The system aims to act as as a leishmanicidal, cicatrizant, and antibiotic agent, with reinforcement of the photodynamic therapy (PDT) action. Rheological and mechanical analyses, permeation studies and bioadhesiveness analyses on human skin, and PDT-mediated activation of Staphylococcus aureus were performed. The emulgels showed gelation between 13° and 15 °C, besides pseudoplastic and viscoelastic properties. Furthermore, the systems showed transdermal potential, by releasing chlorophylls and C. reticulata Ducke into the deep layers of human skin, with good bioadhesive performance. The application of PDT reduced three logarithmic colony-forming units of S. aureus bacteria. The results support the potential of the natural drug for future clinical trials in treating wounds and cutaneous leishmania.
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Affiliation(s)
- Katieli da Silva Souza Campanholi
- Chemistry Department, State University of Maringá, Maringá 87020-900, Brazil
- Correspondence: (K.d.S.S.C.); (W.C.); Tel.: +55-44-3011-5153 (K.d.S.S.C. & W.C.)
| | | | | | - Jéssica Bassi da Silva
- Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringá, Maringá 87020-900, Brazil
| | - Mariana Carla de Oliveira
- Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringá, Maringá 87020-900, Brazil
| | - Rafaela Said dos Santos
- Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringá, Maringá 87020-900, Brazil
| | | | | | | | - Lucio Cardozo-Filho
- Chemical Engineering Department, State University of Maringá, Maringá 87020-900, Brazil
| | - Marcos Luciano Bruschi
- Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringá, Maringá 87020-900, Brazil
| | - Wilker Caetano
- Chemistry Department, State University of Maringá, Maringá 87020-900, Brazil
- Correspondence: (K.d.S.S.C.); (W.C.); Tel.: +55-44-3011-5153 (K.d.S.S.C. & W.C.)
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Lee K, Noh Y, Bae Y, Kang S, Cha C. Tunable Physicomechanical and Drug Release Properties of In Situ Forming Thermoresponsive Elastin-like Polypeptide Hydrogels. Biomacromolecules 2022; 23:5193-5201. [PMID: 36378752 DOI: 10.1021/acs.biomac.2c01001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
With the continued advancement in the design and engineering of hydrogels for biomedical applications, there is a growing interest in imparting stimuli-responsiveness to the hydrogels in order to control their physicomechanical properties in a more programmable manner. In this study, an in situ forming hydrogel is developed by cross-linking alginate with an elastin-like polypeptide (ELP). Lysine-rich ELP synthesized by recombinant DNA technology is reacted with alginate presenting an aldehyde via Schiff base formation, resulting in facile hydrogel formation under physiological conditions. The physicomechanical properties of alginate-ELP hydrogels can be controlled in a wide range by the concentrations of alginate and ELP. Owing to the thermoresponsive properties of the ELP, the alginate-ELP hydrogels undergo swelling/deswelling near the physiological temperature. Taking advantage of these highly attractive properties of alginate-ELP, drug release kinetics were measured to evaluate their potential as a thermoresponsive drug delivery system. Furthermore, an ex vivo model was used to demonstrate the minimally invasive tissue injectability.
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Affiliation(s)
- Kangseok Lee
- Center for Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan44919, Republic of Korea
| | - Yeongjin Noh
- Center for Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan44919, Republic of Korea
| | - Yoonji Bae
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan44919, Republic of Korea
| | - Sebyung Kang
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan44919, Republic of Korea
| | - Chaenyung Cha
- Center for Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan44919, Republic of Korea
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SHESHALA R, WAI NZ, SAID ID, ASHRAF K, LIM SM, RAMASAMY K, ZEESHAN F. Poloxamer and Chitosan-Based In Situ Gels Loaded with Orthosiphon stamineus Benth. Extracts Containing Rosmarinic Acid for the Treatment of Ocular Infections. Turk J Pharm Sci 2022; 19:671-680. [PMID: 36544377 PMCID: PMC9780577 DOI: 10.4274/tjps.galenos.2021.40121] [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: 12/31/2022]
Abstract
Objectives Orthosiphon stamineus Benth. (OS) is a commonly used medicinal plant for curbing bacterial infections globally. This work aimed to fabricate poloxamer and chitosan-based in situ gels loaded with standardized aqueous-ethanolic OS leaf extracts and investigate their antimicrobial efficacy as a potential remedy against ocular infections. Materials and Methods In situ gels containing 0.5% w/v OS extract prepared using cold dispersion method were subjected to physicochemical characterization, including in vitro-release studies. Antimicrobial efficacy was tested against Staphylococcus aureus, Micrococcus luteus, Escherichia coli, and Pseudomonas aeruginosa using agar diffusion method. Results Thin layer chromatography and high performance liquid chromatography chromatograms confirmed the presence of rosmarinic acid (RA) and sinensitin in OS extracts with same retention factor (0.26 and 0.49) and retention times (12.2 and 20.7 min) against reference standards. A homogenous brown coloured in situ gel exhibited low viscosity as a solution and increased viscosity in gel form at ocular temperature. The optimized formulations, P7 (21% P407/4% P188), P8 (21% P407/5% P188) and F5 (1.5% chitosan and 45% β-glycerophosphate) exhibited ideal ocular pH (7.27-7.46), phase transition at ocular temperature (33-37°C) and prolonged RA release up to 12 h. Formulation F5 showed an inhibition zone of 4.3 mm against M. luteus. Conclusion Among all, formulation F5 alone exhibited modest antimicrobial activity against M. luteus. OS extracts at 5% and 10% were most active against tested bacteria however, loading them into in situ gels resulted in sedimentation. Hence, isolation of RA from OS extract is suggested before loading into formulations for a better antimicrobial activity.
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Affiliation(s)
- Ravi SHESHALA
- Universiti Teknologi MARA, Faculty of Pharmacy, Department of Pharmaceutics, Selangor, Malaysia
| | - Ng Zing WAI
- International Medical University, School of Pharmacy, Department of Pharmaceutical Technology, Kuala Lumpur, Malaysia
| | - Iqbal Danial SAID
- International Medical University, School of Pharmacy, Department of Pharmaceutical Technology, Kuala Lumpur, Malaysia
| | - Kamran ASHRAF
- Universiti Teknologi MARA, Faculty of Pharmacy, Department of Pharmacology and Pharmaceutical Chemistry, Selangor, Malaysia
| | - Siong Meng LIM
- Universiti Teknologi MARA, Faculty of Pharmacy, Department of Pharmacology and Pharmaceutical Chemistry, Selangor, Malaysia
| | - Kalavathy RAMASAMY
- Universiti Teknologi MARA, Faculty of Pharmacy, Department of Pharmaceutical Life Sciences, Selangor, Malaysia
| | - Farrukh ZEESHAN
- International Medical University, School of Pharmacy, Department of Pharmaceutical Technology, Kuala Lumpur, Malaysia,* Address for Correspondence: Phone: +0060178455295 E-mail:
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Taheri SL, Rezazadeh M, Hassanzadeh F, Akbari V, Dehghani A, Talebi A, Mostafavi SA. Preparation, physicochemical, and retinal anti-angiogenic evaluation of poloxamer hydrogel containing dexamethasone/avastin-loaded chitosan-N-acetyl-L-cysteine nanoparticles. Int J Biol Macromol 2022; 220:1605-1618. [PMID: 36116595 DOI: 10.1016/j.ijbiomac.2022.09.101] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 09/07/2022] [Accepted: 09/11/2022] [Indexed: 11/05/2022]
Abstract
This study was meant to describe a Poloxamer hydrogel combining Chitosan-N-acetyl-L-cysteine (CNAC) nanoparticles to increase loading and sustained intravitreal administration of Avastin macromolecule. To increase the drug's efficacy and reduce the interfacial fluid pressure in a formulation, dexamethasone was used. To do so, CNAC was synthesized. Then, Avastin- loaded CNAC nanoparticles were prepared and optimized. The resulting hydrogel's sol-gel transition time and viscosity were determined using poloxamer and hydroxypropylmethylcellulose (HPMC). In vitro and in vivo investigations of Avastin-loaded CNAC nanoparticles and hydrogel comprising dexamethasone/Avastin-loaded CNAC nanoparticles were determined. In vitro, the drug release profile of optimized hydrogel containing Avastin-loaded CNAC nanoparticles was sustained and controlled over 256 h. The obtained results point to poloxamer/HPMC (18 %/0.5 %) as the best formulations for this hydrogel to develop a sol-gel transition. About 97 % of dexamethasone was released from the hydrogel within 18 h. In vivo results indicated that the optimized formulation compared with free Avastin could improve Diabetic retinopathy (DR). Consequently, we infer that this new drug delivery method may enhance Avastin intravitreal administration, lowering the frequency, danger, and expense of heavy intravitreal injections and resulting in improved treatment of posterior eye segment neovascularization and concomitant vitreoretinal disorders.
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Affiliation(s)
- Sayed Latif Taheri
- Department of Pharmaceutics, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboubeh Rezazadeh
- Department of Pharmaceutics, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farshid Hassanzadeh
- Department of Medicinal Chemistry, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vajihe Akbari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Dehghani
- Department of Ophthalmology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sayed Abolfazl Mostafavi
- Department of Pharmaceutics, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
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Daull P, Baudouin C, Liang H, Feraille L, Barabino S, Garrigue JS. Review of Preclinical Outcomes of a Topical Cationic Emulsion of Cyclosporine A for the Treatment of Ocular Surface Diseases. Ocul Immunol Inflamm 2022; 30:1945-1955. [PMID: 34348575 DOI: 10.1080/09273948.2021.1957124] [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] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cyclosporine A (CsA) has been used as a topical treatment for various ocular surface diseases including dry eye disease (DED). Several CsA formulations are available as solutions or emulsions. PURPOSE This review describes the development and the preclinical testing of a cationic oil-in-water emulsion of CsA (CE-CsA) in terms of pharmacodynamics, pharmacokinetics, and ocular tolerance. Due to the cationic charge, CE electrostatically interacts with the negatively-charged ocular surface, improving its residence time. Compared to other CsA formulations, CE-CsA and CE itself were found to reduce the signs and symptoms of DED, by restoring tear film stability and properties, and inhibiting the expression and secretion of pro-inflammatory factors. No delay in wound healing nor ocular toxicity were observed using CE formulations. CONCLUSION these findings indicate that the type of vehicle can significantly affect the performance of eye drops and play an ancillary role in DED treatment. CE appears as a promising strategy to deliver drugs to the ocular surface while maintaining its homeostasis.
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Affiliation(s)
| | - Christophe Baudouin
- CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, Paris, France.,Sorbonne Universités, INSERM, CNRS, Institut de la Vision, Paris, France
| | - Hong Liang
- CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, Paris, France.,Sorbonne Universités, INSERM, CNRS, Institut de la Vision, Paris, France
| | | | - Stefano Barabino
- Ocular Surface and Dry Eye Center, Ospedale L. Sacco, University of Milan, Milan, Italy
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Fiqri M, Alhidayah, Nirmayanti, Athiyyah U, Layadi P, Angeleve Fadjar TG, Permana AD. Enhanced localization of cefazoline sodium in the ocular tissue using thermosensitive-mucoadhesive hydrogels: Formulation development, hemocompatibility and in vivo irritation studies. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Balsam Poplar Buds: Extraction of Potential Phenolic Compounds with Polyethylene Glycol Aqueous Solution, Thermal Sterilization of Extracts and Challenges to Their Application in Topical Ocular Formulations. Antioxidants (Basel) 2022; 11:antiox11091771. [PMID: 36139845 PMCID: PMC9495353 DOI: 10.3390/antiox11091771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 02/07/2023] Open
Abstract
Phenolic compounds of natural origin have been valued for their beneficial effects on health since ancient times. During our study, we performed the extraction of phenolic compounds from balsam poplar buds using different concentrations of aqueous polyethylene glycol 400 solvents (10-30% PEG400). The aqueous 30% PEG400 extract showed the best phenolic yield. The stability of the extract during autoclave sterilization was evaluated. The extract remained stable under heat sterilization. Ophthalmic formulations are formed using different concentrations (8-15%) of poloxamer 407 (P407) together with hydroxypropyl methylcellulose (0.3%), sodium carboxymethyl cellulose (0.3%) or hyaluronic acid (0.1%). Physicochemical parameters of the formulations remained significantly unchanged after sterilization. Formulations based on 12% P407 exhibited properties characteristic of in situ gels, the gelation point of the formulations was close to the temperature of the cornea. After evaluating the amount of released compounds, it was found that, as the concentration of polymers increases, the amount of released compounds decreases. Formulations based on 15% P407 released the least biologically active compounds. Sterilized formulations remained stable for 30 days.
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Szalai B, Jójárt-Laczkovich O, Kovács A, Berkó S, Balogh GT, Katona G, Budai-Szűcs M. Design and Optimization of In Situ Gelling Mucoadhesive Eye Drops Containing Dexamethasone. Gels 2022; 8:gels8090561. [PMID: 36135271 PMCID: PMC9498616 DOI: 10.3390/gels8090561] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Poor bioavailability of eye drops is a well-known issue, which can be improved by increasing the residence time on the eye surface and the penetration of the active pharmaceutical ingredient (API). This study aims to formulate in situ gelling mucoadhesive ophthalmic preparations. To increase the residence time, the formulations were based on a thermosensitive polymer (Poloxamer 407 (P407)) and were combined with two types of mucoadhesive polymers. Dexamethasone (DXM) was solubilized by complexation with cyclodextrins (CD). The effect of the composition on the gel structure, mucoadhesion, dissolution, and permeability was investigated with 33 full factorial design. These parameters of the gels were measured by rheological studies, tensile test, dialysis membrane diffusion, and in vitro permeability assay. The dissolution and permeability of the gels were also compared with DXM suspension and CD-DXM solution. The gelation is strongly determined by P407; however, the mucoadhesive polymers also influenced it. Mucoadhesion increased with the polymer concentration. The first phase of drug release was similar to that of the CD-DXM solution, then it became prolonged. The permeability of DXM was significantly improved. The factorial design helped to identify the most important factors, thereby facilitating the formulation of a suitable carrier for the CD-DXM complex.
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Affiliation(s)
- Boglárka Szalai
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
| | - Orsolya Jójárt-Laczkovich
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
| | - Anita Kovács
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
| | - Szilvia Berkó
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
| | - György Tibor Balogh
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Műegyetem Quay 3, H-1111 Budapest, Hungary
| | - Gábor Katona
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
| | - Mária Budai-Szűcs
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös Str. 6, H-6720 Szeged, Hungary
- Correspondence: ; Tel.: +36-6254-5573
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Hu L, Xu Y, Meng H. Development and Evaluation of Puerarin Loaded-Albumin Nanoparticles Thermoresponsive in situ Gel for Ophthalmic Delivery. Drug Des Devel Ther 2022; 16:3315-3326. [PMID: 36193285 PMCID: PMC9526508 DOI: 10.2147/dddt.s374061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/31/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Lixiu Hu
- Department of Pharmaceutical, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Yong Xu
- Department of Pharmaceutical, Shanghai Punan Hospital of Pudong New District, Shanghai, People’s Republic of China
| | - Hui Meng
- Department of Pharmaceutical, 905 Hospital of People’s Liberation Army, Shanghai, People’s Republic of China
- Correspondence: Hui Meng, Email
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da Silva Souza Campanholi K, Sonchini Gonçalves R, Bassi da Silva J, Said dos Santos R, Carla de Oliveira M, Barbosa de Souza Ferreira S, Vizioli de Castro-Hoshino L, Bento Balbinot R, Lazarin-Bidóia D, Luciano Baesso M, Luciano Bruschi M, Vataru Nakamura C, Caetano W. Thermal stimuli-responsive topical platform based on copaiba oil-resin: Design and performance upon ex-vivo human skin. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zong TX, Silveira AP, Morais JAV, Sampaio MC, Muehlmann LA, Zhang J, Jiang CS, Liu SK. Recent Advances in Antimicrobial Nano-Drug Delivery Systems. NANOMATERIALS 2022; 12:nano12111855. [PMID: 35683711 PMCID: PMC9182179 DOI: 10.3390/nano12111855] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/28/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022]
Abstract
Infectious diseases are among the major health issues of the 21st century. The substantial use of antibiotics over the years has contributed to the dissemination of multidrug resistant bacteria. According to a recent report by the World Health Organization, antibacterial (ATB) drug resistance has been one of the biggest challenges, as well as the development of effective long-term ATBs. Since pathogens quickly adapt and evolve through several strategies, regular ATBs usually may result in temporary or noneffective treatments. Therefore, the demand for new therapies methods, such as nano-drug delivery systems (NDDS), has aroused huge interest due to its potentialities to improve the drug bioavailability and targeting efficiency, including liposomes, nanoemulsions, solid lipid nanoparticles, polymeric nanoparticles, metal nanoparticles, and others. Given the relevance of this subject, this review aims to summarize the progress of recent research in antibacterial therapeutic drugs supported by nanobiotechnological tools.
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Affiliation(s)
- Tong-Xin Zong
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
| | - Ariane Pandolfo Silveira
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
| | | | - Marina Carvalho Sampaio
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
| | - Luis Alexandre Muehlmann
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220900, Brazil
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
| | - Juan Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
| | - Cheng-Shi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
| | - Shan-Kui Liu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
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Fatimah SF, Lukitaningsih E, Martien R, Nugroho AK. Bibliometric analysis of articles on nanoemulsion and/or in-situ gel for ocular drug delivery system published during the 2011–2021 period. PHARMACIA 2022. [DOI: 10.3897/pharmacia.69.e82847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The bibliometric data were extracted from the Scopus database to investigate the conceptual framework of ocular nanoemulsion and/or in-situ gel drug delivery system using “ocular” AND “nanoemulsion” OR “in-situ gel” keywords. The data were evaluated with RStudio and VOSviewer program.
The results reveal that the publication trends tend to increase continually. India is the most impactful country, and the most constructive institution is Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University. International Journal of Pharmaceutics is the top influential source. Ali A is the most prolific author. The title of the most impactful article was In-situ gelling systems based on Pluronic F127/Pluronic F68 formulations for ocular drug delivery”. “Controlled release” is the most popular keyword.
These results provide insights for stimulating research collaborations and revealing open issues of controlled-release ocular preparation to overcome an ocular barrier and enhance patient compliance.
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Chen CH, Lin YJ, Cheng LT, Lin CH, Ke GM. Poloxamer-188 Adjuvant Efficiently Maintains Adaptive Immunity of SARS-CoV-2 RBD Subunit Vaccination through Repressing p38MAPK Signaling. Vaccines (Basel) 2022; 10:vaccines10050715. [PMID: 35632471 PMCID: PMC9145454 DOI: 10.3390/vaccines10050715] [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: 03/18/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Poloxamer-188 (P188) is a nonionic triblock linear copolymer that can be used as a pharmaceutical excipient because of its amphiphilic nature. This study investigated whether P188 can act as an adjuvant to improve the immunogenicity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor binding domain (RBD) subunit vaccine. BALB/c mice were vaccinated twice with the RBD antigen alone or in combination with P188 or MF59 (a commercial adjuvant for comparison purposes). The resulting humoral and cellular immunity were assessed. Results showed that P188 helped elicit higher neutralizing activity than MF59 after vaccination. P188 induced significant humoral immune response, along with type 1 T helper (Th1) and type 2 T helper (Th2) cellular immune response when compared with MF59 due to repressing p38MAPK phosphorylation. Furthermore, P188 did not result in adverse effects such as fibrosis of liver or kidney after vaccination. In conclusion, P188 is a novel adjuvant that may be used for safe and effective immune enhancement of the SARS-CoV-2 RBD antigen.
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Affiliation(s)
- Chao-Hung Chen
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 10650, Taiwan; (C.-H.C.); (Y.-J.L.); (L.-T.C.)
- General Research Service Center, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Yu-Jen Lin
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 10650, Taiwan; (C.-H.C.); (Y.-J.L.); (L.-T.C.)
- Country Best Biotech Co., Ltd., Taipei 100411, Taiwan;
| | - Li-Ting Cheng
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 10650, Taiwan; (C.-H.C.); (Y.-J.L.); (L.-T.C.)
| | | | - Guan-Ming Ke
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 10650, Taiwan; (C.-H.C.); (Y.-J.L.); (L.-T.C.)
- Correspondence: ; Tel.: +886-08-7703202 (ext. 5052)
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Recent progress in colloidal nanocarriers loaded in situ gel in ocular therapeutics. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Polyaphron Formulations Stabilised with Different Water-Soluble Polymers for Ocular Drug Delivery. Pharmaceutics 2022; 14:pharmaceutics14050926. [PMID: 35631511 PMCID: PMC9146855 DOI: 10.3390/pharmaceutics14050926] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/13/2022] [Accepted: 04/21/2022] [Indexed: 01/17/2023] Open
Abstract
As drug delivery to the eye has evolved over the last decades, researchers have explored more effective treatments for ocular diseases. Despite this, delivering drugs to the cornea remains one of the most problematic issues in ophthalmology due to the poor permeability of the cornea and tear clearance mechanisms. In this study, four different types of polyaphron formulations are prepared with 10% poloxamer 188 (P188), 10% poly(2-ethyl-2-oxazoline), 1% polyquaternium 10, and 3% sodium carboxymethylcellulose solutions mixed with 1% Brij® L4 in a caprylic/capric triglycerides solution. Their physicochemical characteristics, rheological properties, and stability are assessed. Additionally, a polyaphron with 3% polyquaternium 10 was prepared for the assessment of ex vivo corneal retention along with four other polyaphrons. The best retention on the ex vivo cornea was displayed by the 3% polyquaternium 10-based formulation. The 10% poloxamer 188 along with 1% polyquaternium 10-based polyaphrons appeared to be the most stable among the four prepared formulations. A toxicological evaluation of these formulations was performed using a slug mucosal irritation test and bovine corneal opacity and permeability assay, with all four polyaphrons proving good biocompatibility with ocular tissues. The developed drug delivery systems demonstrated an excellent potential for ocular drug delivery.
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Optimization of the Micellar-Based In Situ Gelling Systems Posaconazole with Quality by Design (QbD) Approach and Characterization by In Vitro Studies. Pharmaceutics 2022; 14:pharmaceutics14030526. [PMID: 35335902 PMCID: PMC8954786 DOI: 10.3390/pharmaceutics14030526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 01/12/2023] Open
Abstract
Background: Fungal ocular infections can cause serious consequences, despite their low incidence. It has been reported that Posaconazole (PSC) is used in the treatment of fungal infections in different ocular tissues by diluting the oral suspension, and successful results were obtained despite low ocular permeation. Therefore, we optimized PSC-loaded ocular micelles and demonstrated that the permeation/penetration of PSC in ocular tissues was enhanced. Methods: The micellar-based in situ gels based on the QbD approach to increase the ocular bioavailability of PSC were developed. Different ratios of Poloxamer 407 and Poloxamer 188 were chosen as CMAs. Tsol/gel, gelling capacity and rheological behavior were chosen as CQA parameters. The data were evaluated by Minitab 18, and the formulations were optimized with the QbD approach. The in vitro release study, ocular toxicity, and anti-fungal activity of the optimized formulation were performed. Results: Optimized in situ gel shows viscoelastic property and becomes gel form at physiological temperatures even when diluted with the tear film. In addition, it has been shown that the formulation had high anti-fungal activity and did not have any ocular toxicity. Conclusions: In our previous studies, PSC-loaded ocular micelles were developed and optimized for the first time in the literature. With this study, the in situ gels of PSC for ocular application were developed and optimized for the first time. The optimized micellar-based in situ gel is a promising drug delivery system that may increase the ocular permeation and bioavailability of PSC.
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Khallaf AM, El-Moslemany RM, Ahmed MF, Morsi MH, Khalafallah NM. Exploring a Novel Fasudil-Phospholipid Complex Formulated as Liposomal Thermosensitive in situ Gel for Glaucoma. Int J Nanomedicine 2022; 17:163-181. [PMID: 35046652 PMCID: PMC8760977 DOI: 10.2147/ijn.s342975] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/22/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose Methods Results Conclusion
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Affiliation(s)
- Aya M Khallaf
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Riham M El-Moslemany
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Correspondence: Riham M El-Moslemany Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 1, Khartoum Square, Azarita, Alexandria, 21521, EgyptTel +20 1006020405 Email
| | - Mahmoud F Ahmed
- Managing Director at Ultimate Pharma Company, Alexandria, Egypt
| | - Mahmoud H Morsi
- Department of Ophthalmology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nawal M Khalafallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Chaudhari P, Naik R, Sruthi Mallela L, Roy S, Birangal S, Ghate V, Balladka Kunhanna S, Lewis SA. A supramolecular thermosensitive gel of ketoconazole for ocular applications: In silico, in vitro, and ex vivo studies. Int J Pharm 2021; 613:121409. [PMID: 34952148 DOI: 10.1016/j.ijpharm.2021.121409] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/04/2021] [Accepted: 12/17/2021] [Indexed: 12/11/2022]
Abstract
The incidence of corneal fungal infections continues to be a growing concern worldwide. Ocular delivery of anti-fungal drugs is challenging due to the anatomical and physiological barriers of the eye. The ocular bioavailability of ketoconazole (KTZ), a widely prescribed antifungal agent, is hampered by its limited aqueous solubility and permeation. In the study, the physicochemical properties of KTZ were improved by complexation with sulfobutylether-β-cyclodextrin (SBE-β-CD).KTZ-SBE-β-CD complex was studied in silico with docking and dynamics simulations, followed by wet-lab experiments.The optimized KTZ-SBE-β-CD complex was loaded into a thermosensitivein situ gel to increase corneal bioavailability. The supramolecular complex increased the solubility of KTZ by 5-folds and exhibited a 10-fold increment in drug release compared to the pure KTZ. Owing to the diffusion, thein situ gel exhibited a more sustained drug release profile. Theex vivocorneal permeation studies showed higher permeation from KTZ-SBE-β-CD in situ gel (flux of ∼19.11 µg/cm2/h) than KTZin situ gel (flux of ∼1.17 µg/cm2/h). The cytotoxicity assays and the hen's egg chorioallantoic membrane assay (HET-CAM) confirmed the formulations' safety and non-irritancy. In silico guided design of KTZ-SBE-β-CD inclusion complexes successfully modified the physicochemical properties of KTZ. In addition, the loading of the KTZ-SBE-β-CD complex into an in situ gel significantly increased the precorneal retention and permeation of KTZ, indicating that the developed formulation is a viable modality to treat fungal keratitis.
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Affiliation(s)
- Pinal Chaudhari
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Ranjitha Naik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Lakshmi Sruthi Mallela
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad 500034, India
| | - Sanhita Roy
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad 500034, India
| | - Sumit Birangal
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Vivek Ghate
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sarojini Balladka Kunhanna
- Department of Industrial Chemistry, Mangalore University, Mangalagangothri, Mangalore 574199, Karnataka, India
| | - Shaila A Lewis
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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da Silva Souza Campanholi K, Combuca da Silva Junior R, Cazelatto da Silva I, Said dos Santos R, Vecchi CF, Bruschi ML, Soares dos Santos Pozza M, Vizioli de Castro-Hoshino L, Baesso ML, Hioka N, Caetano W, Batistela VR. Stimulus-responsive phototherapeutic micellar platform of Rose Bengal B: A new perspective for the treatment of wounds. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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