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Thormann U, Marti S, Lensmith E, Lanz M, Herzig S, Naef R, Imanidis G. Formulation and dermal delivery of a new active pharmaceutical ingredient in an in vitro wound model for the treatment of chronic ulcers. Eur J Pharm Biopharm 2024; 202:114373. [PMID: 38906230 DOI: 10.1016/j.ejpb.2024.114373] [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: 02/16/2024] [Revised: 06/04/2024] [Accepted: 06/16/2024] [Indexed: 06/23/2024]
Abstract
The aim of this study was to investigate dermal delivery of the new active pharmaceutical ingredient (API) TOP-N53 into diabetic foot ulcer using an in vitro wound model consisting of pig ear dermis and elucidate the impact of drug formulation and wound dressing taking into consideration clinical relevance in the home care setting and possible bacterial infection. Different formulation approaches for the poorly water-soluble API including colloidal solubilization, drug micro-suspension and cosolvent addition were investigated; moreover, the effect of (micro-)viscosity of hydrogels used as primary wound dressing on delivery was assessed. Addition of Transcutol® P as cosolvent to water improved solubility and was significantly superior to all other approaches providing a sustained three-day delivery that reached therapeutic drug levels in the tissue. Solubilization in micelles or liposomes, on the contrary, did not boost delivery while micro-suspensions exhibited sedimentation on the tissue surface. Microbial contamination was responsible for considerable metabolism of the drug leading to tissue penetration of metabolites which may be relevant for therapeutic effect. Use of hydrogels under semi-occlusive conditions significantly reduced drug delivery in a viscosity-dependent fashion. Micro-rheologic analysis of the gels using diffusive wave spectroscopy confirmed the restricted diffusion of drug particles in the gel lattice which correlated with the obtained tissue delivery results. Hence, the advantages of hydrogel dressings from the applicatory characteristic point of view must be weighed against their adverse effect on drug delivery. The employed in vitro wound model was useful for the assessment of drug delivery and the development of a drug therapy concept for chronic diabetic foot ulcer. Mechanistic insights about formulation and dressing performance may be applied to drug delivery in other skin conditions such as digital ulcer.
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Affiliation(s)
- Ursula Thormann
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland
| | - Selina Marti
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland
| | - Elizabeth Lensmith
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland
| | - Michael Lanz
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland
| | - Susanne Herzig
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland
| | - Reto Naef
- Topadur Pharma AG, Schlieren, Switzerland
| | - Georgios Imanidis
- School of Life Sciences, University of Applied Sciences Northwestern Switzerland, Muttenz, Basel, Switzerland.
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2
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Alshetaili AS, Almohizea S, Anwer MK, Riadi Y. Novel embelin-loaded transniosomes for topical delivery: comprehensive exploration of in vitro, ex vivo and dermatokinetic assessment for anti-cancer activity. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 39205514 DOI: 10.1002/jsfa.13831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 08/07/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND This study systematically designed and optimised a transniosomal formulation containing embelin for skin cancer management. The transniosomes were developed using a rotary evaporation method and then optimised using a Box-Behnken design. RESULTS The optimized embelin-loaded transniosomes (Opt-EMB-TNs) exhibited a vesicle size of 149.01 nm, polydispersity index of 0.184, a zeta potential of -21.14 mV, an entrapment efficiency of 75.6 ± 0.65%, drug loading of 3.36 ± 0.03% and drug release of 80.88 ± 2.55%. The antioxidant potential of Opt-EMB-TNs was found to be 88.54% when compared to standard ascorbic acid. Dermatokinetic studies showed a greater drug deposition in targeted skin areas with Opt-EMB-TN gel compared to the embelin conventional gel (EMB-CF gel). In addition, the penetration depth study of the skin sample revealed that the transniosomal gel containing rhodamine B dye exhibited higher penetration than that of the rhodamine B dye containing hydroalcoholic solution. The efficacy of Opt-EMB-TNs for skin cancer was confirmed by cytotoxicity assay against the B16F10 melanoma cell line. CONCLUSION The study concluded that the Opt-EMB-TN gel formulation is a promising and effective topical treatment for skin cancer, demonstrating significant potential for further development and clinical application. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Abdullah S Alshetaili
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Salman Almohizea
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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3
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Turley JL, Ward RW, Huete-Carrasco J, Muñoz-Wolf N, Roche K, Jin L, Bowie A, Andersson M, Lavelle EC. Intratumoral delivery of the chitin-derived C100 adjuvant promotes robust STING, IFNAR, and CD8 + T cell-dependent anti-tumor immunity. Cell Rep Med 2024; 5:101560. [PMID: 38729159 PMCID: PMC11148802 DOI: 10.1016/j.xcrm.2024.101560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 02/07/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
Stimulator of IFN genes (STING) is a promising target for adjuvants utilized in in situ cancer vaccination approaches. However, key barriers remain for clinical translation, including low cellular uptake and accessibility, STING variability necessitating personalized STING agonists, and interferon (IFN)-independent signals that can promote tumor growth. Here, we identify C100, a highly deacetylated chitin-derived polymer (HDCP), as an attractive alternative to conventional STING agonists. C100 promotes potent anti-tumor immune responses, outperforming less deacetylated HDCPs, with therapeutic efficacy dependent on STING and IFN alpha/beta receptor (IFNAR) signaling and CD8+ T cell mediators. Additionally, C100 injection synergizes with systemic checkpoint blockade targeting PD-1. Mechanistically, C100 triggers mitochondrial stress and DNA damage to exclusively activate the IFN arm of the cGAS-STING signaling pathway and elicit sustained IFNAR signaling. Altogether, these results reveal an effective STING- and IFNAR-dependent adjuvant for in situ cancer vaccines with a defined mechanism and distinct properties that overcome common limitations of existing STING therapeutics.
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Affiliation(s)
- Joanna L Turley
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland
| | - Ross W Ward
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland
| | - Jorge Huete-Carrasco
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland
| | - Natalia Muñoz-Wolf
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland
| | - Kate Roche
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland
| | - Lei Jin
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Andrew Bowie
- School of Biochemistry and Immunology, Trinity Biomedical Science Institute (TBSI), Trinity College Dublin, D02 R590 Dublin, Ireland
| | - Mats Andersson
- Division Bioscience and Materials, RISE (Research Institutes of Sweden), Forskargatan 18, 151 36 Södertälje, Sweden
| | - Ed C Lavelle
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin 2, Ireland; Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, D02 PN40 Dublin 2, Ireland.
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4
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Panigrahi SK, Das S, Majumdar S. Unveiling the potentials of hydrophilic and hydrophobic polymers in microparticle systems: Opportunities and challenges in processing techniques. Adv Colloid Interface Sci 2024; 326:103121. [PMID: 38457900 DOI: 10.1016/j.cis.2024.103121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
Conventional drug delivery systems are associated with various shortcomings, including low bioavailability and limited control over release. Biodegradable polymeric microparticles have emerged as versatile carriers in drug delivery systems addressing all these challenges. This comprehensive review explores the dynamic landscape of microparticles, considering the role of hydrophilic and hydrophobic materials. Within the continuously evolving domain of microparticle preparation methods, this review offers valuable insights into the latest advancements and addresses the factors influencing microencapsulation, which is pivotal for harnessing the full potential of microparticles. Exploration of the latest research in this dynamic field unlocks the possibilities of optimizing microencapsulation techniques to produce microparticles of desired characteristics and properties for different applications, which can help contribute to the ongoing evolution in the field of pharmaceutical science.
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Affiliation(s)
- Subrat Kumar Panigrahi
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Sougat Das
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Saptarshi Majumdar
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India.
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5
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Yadav R, Bhawale R, Kapoor DN, Singh SB, Mehra NK. Experimental design approach for development of carboplatin loaded chitosan modified liposomal formulation with improved topical vaginal therapeutic potential. Pharm Dev Technol 2024; 29:1-12. [PMID: 38015058 DOI: 10.1080/10837450.2023.2289133] [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: 06/16/2023] [Accepted: 10/20/2023] [Indexed: 11/29/2023]
Abstract
One of the most prevalent cancers affecting women globally is cervical cancer. Cervical cancer is thought to cause 570 000 new cases annually, and standard treatments can have serious side effects. In this work, the main aim is to design, fabrication, and evaluation of carboplatin loaded chitosan coated liposomal formulation (CCLF-I) for vaginal delivery in the treatment of cervical cancer. The particle size and polydispersity index of the CCLF-1 were observed at 269.33 ± 1.15 and 0.40 ± 0.002 nm, respectively. The in vitro mucin binding studies showed good adhesiveness of CCLF-I as compared to plain liposomes (CPLF-I), which was found at 23.49 and 10.80%, respectively. The ex-vivo percent drug permeation from plain liposomal formulation (CPLF-I) was found to be higher in comparison to chitosan coated liposomal formulation which was 56.33% while in CCLF-I it was observed 47.32% this is due to, higher retainability of delivery system (CCLF-I) on targeted site attained by coating of mucoadhesive polymer on liposomes. Ex vivo tissue retention studies exhibited 24.2% of CCLF-I in comparison to 10.34% from plain drug formulation (CPLF-I). The in vivo vaginal retention studies exhibited 14% of drug retention after 24 h from the novel formulation in comparison to 6% from the plain formulation. The developed CCLF-I formulation would open a new avenue in the cervical treatment.
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Affiliation(s)
- Rati Yadav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, India
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Rohit Bhawale
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Deepak N Kapoor
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Shashi Bala Singh
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Neelesh Kumar Mehra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, India
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6
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Rukavina Z, Jøraholmen MW, Božić D, Frankol I, Gašparović PG, Škalko-Basnet N, Klarić MŠ, Vanić Ž. Azithromycin-loaded liposomal hydrogel: a step forward for enhanced treatment of MRSA-related skin infections. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2023; 73:559-579. [PMID: 38147473 DOI: 10.2478/acph-2023-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/13/2023] [Indexed: 12/28/2023]
Abstract
Azithromycin (AZT) encapsulated into various types of liposomes (AZT-liposomes) displayed pronounced in vitro activity against methicillin-resistant Staphylococcus aureus (MRSA) (1). The present study represents a follow-up to this previous work, attempting to further explore the anti-MRSA potential of AZT-liposomes when incorporated into chitosan hydrogel (CHG). Incorporation of AZT-liposomes into CHG (liposomal CHGs) was intended to ensure proper viscosity and texture properties of the formulation, modification of antibiotic release, and enhanced antibacterial activity, aiming to upgrade the therapeutical potential of AZT-liposomes in localized treatment of MRSA-related skin infections. Four different liposomal CHGs were evaluated and compared on the grounds of antibacterial activity against MRSA, AZT release profiles, cytotoxicity, as well as texture, and rheological properties. To our knowledge, this study is the first to investigate the potential of liposomal CHGs for the topical localized treatment of MRSA-related skin infections. CHG ensured proper viscoelastic and texture properties to achieve prolonged retention and prolonged release of AZT at the application site, which resulted in a boosted anti-MRSA effect of the entrapped AZT-liposomes. With respect to anti-MRSA activity and biocompatibility, formulation CATL-CHG (cationic liposomes in CHG) is considered to be the most promising formulation for the treatment of MRSA-related skin infections.
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Affiliation(s)
- Zora Rukavina
- 1Department of Pharmaceutical Technology, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
| | - May Wenche Jøraholmen
- 2Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, 9037 Tromsø Norway
| | - Dunja Božić
- 3R&D, PLIVA Croatia Ltd. 10000 Zagreb, Croatia
| | - Ivana Frankol
- 1Department of Pharmaceutical Technology, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
| | | | - Nataša Škalko-Basnet
- 2Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, 9037 Tromsø Norway
| | - Maja Šegvić Klarić
- 4Department of Microbiology, University of Zagreb Faculty of Pharmacy and Biochemistry 10000 Zagreb, Croatia
| | - Željka Vanić
- 1Department of Pharmaceutical Technology, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
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7
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Alam P, Imran M, Jahan S, Akhtar A, Hasan Z. Formulation and Characterization of Hesperidin-Loaded Transethosomal Gel for Dermal Delivery to Enhance Antibacterial Activity: Comprehension of In Vitro, Ex Vivo, and Dermatokinetic Analysis. Gels 2023; 9:791. [PMID: 37888364 PMCID: PMC10606654 DOI: 10.3390/gels9100791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
In this study, hesperidin was loaded into a transethosome and was developed employing the rotary evaporator method. The formulation was optimized using the Box-Behnken design (BBD). The optimized HSD-TE formulation has a spherical shape, vesicle size, polydispersity index, entrapment efficiency, and zeta potential within the range of 178.98 nm; the PDI was 0.259 with a zeta potential of -31.14 mV and % EE of 89.51%, respectively. The in vitro drug release shows that HSD-TE exhibited the release of 81.124 ± 3.45% in comparison to HSD suspension. The ex vivo skin permeation showed a 2-fold increase in HSD-TE gel permeation. The antioxidant activity of HSD-TE was found to be 79.20 ± 1.77% higher than that of the HSD solution. The formulation showed 2-fold deeper HSD-TE penetration across excised rat skin membranes in confocal laser microscopy scanning, indicating promising in vivo prospects. In a dermatokinetic study, HSD-TE gel was compared to HSD conventional gel where TE significantly boosted HSD transport in the epidermis and dermal layers. The formulation showed greater efficacy than free HSD in the inhibition of microbial growth, as evidenced by antibacterial activity on the Gram-negative and positive bacteria. These investigations found that the HSD-TE formulation could enhance the topical application in the management of cutaneous bacterial infections.
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Affiliation(s)
- Perwez Alam
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
| | - Mohd Imran
- Department of Pharmacognosy, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India;
| | - Samreen Jahan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India;
| | - Ali Akhtar
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
| | - Zafrul Hasan
- Department of Medical Surgical Nursing, College of Nursing, King Saud University, Riyadh 11451, Saudi Arabia;
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Popov S, Paderin N, Chistiakova E, Ptashkin D, Vityazev F, Markov PA, Erokhin KS. Effect of Chitosan on Rheological, Mechanical, and Adhesive Properties of Pectin-Calcium Gel. Mar Drugs 2023; 21:375. [PMID: 37504906 PMCID: PMC10381555 DOI: 10.3390/md21070375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023] Open
Abstract
In the present study, chitosan was included in the pectin ionotropic gel to improve its mechanical and bioadhesive properties. Pectin-chitosan gels P-Ch0, P-Ch1, P-Ch2, and P-Ch3 of chitosan weight fractions of 0.00, 0.25, 0.50, and 0.75 were prepared and characterized by dynamic rheological tests, penetration tests, and serosal adhesion ex vivo assays. The storage modulus (G') and loss modulus (G″) values, gel hardness, and elasticity of P-Ch1 were significantly higher than those of P-Ch0 gel. However, a further increase in the content of chitosan in the gel significantly reduced these parameters. The inclusion of chitosan into the pectin gel led to a decrease in weight and an increase in hardness during incubation in Hanks' solution at pH 5.0, 7.4, and 8.0. The adhesion of P-Ch1 and P-Ch2 to rat intestinal serosa ex vivo was 1.3 and 1.7 times stronger, whereas that of P-Ch3 was similar to that of a P-Ch0 gel. Pre-incubation in Hanks' solution at pH 5.0 and 7.4 reduced the adhesivity of gels; however, the adhesivity of P-Ch1 and P-Ch2 exceeded that of P-Ch0 and P-Ch3. Thus, serosal adhesion combined with higher mechanical stability in a wide pH range appeared to be advantages of the inclusion of chitosan into pectin gel.
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Affiliation(s)
- Sergey Popov
- Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciencesk", 167982 Syktyvkar, Russia
| | - Nikita Paderin
- Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciencesk", 167982 Syktyvkar, Russia
| | - Elizaveta Chistiakova
- Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciencesk", 167982 Syktyvkar, Russia
| | - Dmitry Ptashkin
- Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciencesk", 167982 Syktyvkar, Russia
| | - Fedor Vityazev
- Institute of Physiology of Federal Research Centre "Komi Science Centre of the Urals Branch of the Russian Academy of Sciencesk", 167982 Syktyvkar, Russia
| | - Pavel A Markov
- The Federal State Budgetary Institution "National Medical Research Center of Rehabilitation and Balneologyk", 121099 Moscow, Russia
| | - Kirill S Erokhin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
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Demisli S, Galani E, Goulielmaki M, Kyrilis FL, Ilić T, Hamdi F, Crevar M, Kastritis PL, Pletsa V, Nallet F, Savić S, Xenakis A, Papadimitriou V. Encapsulation of cannabidiol in oil-in-water nanoemulsions and nanoemulsion-filled hydrogels: A structure and biological assessment study. J Colloid Interface Sci 2023; 634:300-313. [PMID: 36535166 DOI: 10.1016/j.jcis.2022.12.036] [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: 07/29/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
HYPOTHESIS Lipophilic cannabidiol can be solubilized in oil-in water nanoemulsions, which can then be impregnated into chitosan hydrogels forming another colloidal system that will facilitate cannabidiol's release. The delivery from both systems was compared, alongside structural and biological studies, to clarify the effect of the two carriers' structure on the release and toxicity of the systems. EXPERIMENTS Oil-in-water nanoemulsions (NEs) and the respective nanoemulsion-filled chitosan hydrogels (NE/HGs) were formulated as carriers of cannabidiol (CBD). Size, polydispersity and stability of the NEs were evaluated and then membrane dynamics, shape and structure of both systems were investigated with EPR spin probing, SAXS and microscopy. Biocompatibility of the colloidal delivery systems was evaluated through cytotoxicity tests over normal human skin fibroblasts. An ex vivo permeation protocol using porcine ear skin was implemented to assess the release of CBD and its penetration through the skin. FINDINGS Incorporation of the NEs in chitosan hydrogels does not significantly affect their structural properties as evidenced through SAXS, EPR and confocal microscopy. These findings indicate the successful development of a novel nanocarrier that preserves the NE structure with the CBD remaining encapsulated in the oil core while providing new rheological properties advantageous over NEs. Moreover, NE/HGs proved to be more efficient as a carrier for the release of CBD. Cell viability assessment revealed high biocompatibility of the proposed colloids.
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Affiliation(s)
- Sotiria Demisli
- Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece; Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Eleni Galani
- Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece; Department of Food Science & Human Nutrition, Agricultural University of Athens, Greece
| | - Maria Goulielmaki
- Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
| | - Fotios L Kyrilis
- Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Tanja Ilić
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade, Belgrade, Serbia
| | - Farzad Hamdi
- Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Milkica Crevar
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade, Belgrade, Serbia
| | | | - Vasiliki Pletsa
- Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
| | - Frédéric Nallet
- Centre de Recherche Paul Pascal (CRPP) UMR 5031 CNRS, University of Bordeaux, France
| | - Snežana Savić
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade, Belgrade, Serbia
| | - Aristotelis Xenakis
- Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
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10
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Biazar E, Heidari Keshel S, Niazi V, Vazifeh Shiran N, Saljooghi R, Jarrahi M, Mehdipour Arbastan A. Morphological, cytotoxicity, and coagulation assessments of perlite as a new hemostatic biomaterial. RSC Adv 2023; 13:6171-6180. [PMID: 36825295 PMCID: PMC9941756 DOI: 10.1039/d2ra07795g] [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: 12/07/2022] [Accepted: 02/13/2023] [Indexed: 02/23/2023] Open
Abstract
Hemorrhage control is vital for clinical outcomes after surgical treatment and pre-hospital trauma injuries. Numerous biomaterials have been investigated to control surgical and traumatic bleeding. In this study, for the first time, perlite was introduced as an aluminosilicate biomaterial and compared with other ceramics such as kaolin and bentonite in terms of morphology, cytotoxicity, mutagenicity, and hemostatic evaluations. Cellular studies showed that perlite has excellent viability, good cell adhesion, and high anti-mutagenicity. Coagulation results demonstrated that the shortest clotting time (140 seconds with a concentration of 50 mg mL-1) was obtained for perlite samples compared to other samples. Therefore, perlite seems most efficient as a biocompatible ceramic for hemorrhage control and other biomaterial designs.
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Affiliation(s)
- Esmaeil Biazar
- Biomaterials and Tissue Engineering Group, Department of Biomedical Engineering, Islamic Azad University Tonekabon Branch Tonekabon Iran +981154271105 +981154271105
| | - Saeid Heidari Keshel
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences Tehran Iran +989125870517 +989125870517.,Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Vahid Niazi
- Stem Cell Research Center, Golestan University of Medical ScienceGorganIran,Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical ScienceGorganIran
| | - Nader Vazifeh Shiran
- Department of Hematology and Blood Banking, Faculty of Medical Sciences, Tarbiat Modares UniversityTehranIran
| | - Roxana Saljooghi
- Biomaterials and Tissue Engineering Group, Department of Biomedical Engineering, Islamic Azad University Tonekabon Branch Tonekabon Iran +981154271105 +981154271105
| | - Mina Jarrahi
- Biomaterials and Tissue Engineering Group, Department of Biomedical Engineering, Islamic Azad University Tonekabon Branch Tonekabon Iran +981154271105 +981154271105
| | - Ahmad Mehdipour Arbastan
- School of Medicine, Faculty of Medical Sciences, Islamic Azad UniversityTonekabon BranchTonekabonIran
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11
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Laffleur F, Hörmann N, Gust R, Ganner A. Synthesis, characterization and evaluation of hyaluronic acid-based polymers for nasal delivery. Int J Pharm 2023; 631:122496. [PMID: 36529356 DOI: 10.1016/j.ijpharm.2022.122496] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/29/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Epidemiological research has found that between 5 and 12 percent of the population suffers from chronic rhinosinusitis. Patients are dealing with local side effects such as nasal dryness, sporadic sneezing, and nasal pain in addition to the inflammation. The aim of this study was to synthesize a polymer based on hyaluronic acid in order to provide lubrication combined with a ligand leading to a covalent binding on the nasal mucosa. Hyaluronic acid (HA) was modified with L-cysteine ethyl ester hydrochloride (CYS) via amid bond formation. Ellman's assay, together with spectroscopic techniques like IR and 1H NMR, confirmed that HACys had been successfully synthesized. It was demonstrated that HACys is safe for administration on the nasal mucosa. The mucoadhesive potential was determined by 3.26-fold with the rotating cylinder assay and 1.4-fold in terms of bioadhesive examination, respectively. Further, the stability of the modified polymer was improved by 7.6-fold compared to the unmodified polymer. Spraying the formulation on the nasal mucosa, the residence time of a model drug was 1.74-fold prolonged at the site of action compared to unmodified polymer. In light of these findings, modified hyaluronic acid (HACys) displayed compelling properties such as lubricity, targeted application, long-lasting effect, and safety and therefore could be an excellent candidate for nasal application.
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Affiliation(s)
- Flavia Laffleur
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Innrain 80-82, 6020 Innsbruck, Austria.
| | - Nikolas Hörmann
- Department of Pharmaceutical Chemistry, University of Innsbruck, Institute of Pharmacy, Innrain 80-82, 6020 Innsbruck, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, University of Innsbruck, Institute of Pharmacy, Innrain 80-82, 6020 Innsbruck, Austria
| | - Ariane Ganner
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Innrain 80-82, 6020 Innsbruck, Austria
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12
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Türkmen E, Parmaksız S, Nigiz Ş, Sağıroğlu M, Şenel S. A safe bioadhesive system for topical delivery of combined antimicrobials in treatment of skin infections in veterinary medicine. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Pudziuvelyte L, Siauruseviciute A, Morkuniene R, Lazauskas R, Bernatoniene J. Influence of Technological Factors on the Quality of Chitosan Microcapsules with Boswellia serata L. Essential Oil. Pharmaceutics 2022; 14:pharmaceutics14061259. [PMID: 35745831 PMCID: PMC9227605 DOI: 10.3390/pharmaceutics14061259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/30/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022] Open
Abstract
Essential oils contain many volatile compounds that are not stable and lose their pharmacological effect when exposed to the environment. The aim of this study is to protect Boswellia serrata L. essential oil from environmental factors by encapsulation and determine the influence of chitosan concentration and types (2%, 4%; medium and high molecular weights), essential oil concentration, different emulsifiers (Tween and Span), and technological factors (stirring time, launch height, drip rate) on the physical parameters, morphology, texture, and other parameters of the generated gels, emulsions, and microcapsules. For the first time, Boswellia serrata L. essential oil microcapsules with chitosan were prepared by coacervation. Hardness, consistency, stickiness, viscosity, and pH of chitosan gels were tested. Freshly obtained microcapsules were examined for moisture, hardness, resistance to compression, size, and morphology. Results show that different molecular weights and concentrations of chitosan affected gel hardness, consistency, stickiness, viscosity, mobility, and adhesion. An increase in chitosan concentration from 2% to 4% significantly changed the appearance of the microcapsules. It was found that spherical microcapsules were formed when using MMW and HMW 80/1000 chitosan. Chitosan molecular weight, concentration, essential oil concentration, and stirring time all had an impact on the hardness of the microcapsules and their resistance to compression.
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Affiliation(s)
- Lauryna Pudziuvelyte
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania;
| | - Aiste Siauruseviciute
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Eiveniu 4, LT-50161 Kaunas, Lithuania;
| | - Ramune Morkuniene
- Department of Drug Chemistry, Lithuanian University of Health Sciences, Eiveniu 4, LT-50161 Kaunas, Lithuania;
| | - Robertas Lazauskas
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, A. Mickeviciaus 7, LT-44307 Kaunas, Lithuania;
| | - Jurga Bernatoniene
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Eiveniu 4, LT-50161 Kaunas, Lithuania;
- Correspondence:
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14
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Sipahi H, Orak D, Reis R, Yalman K, Şenol O, Palabiyik-Yücelik SS, Deniz İ, Algül D, Guzelmeric E, Çelep ME, Argin S, Özkan F, Halıcı Z, Aydın A, Yesilada E. A comprehensive study to evaluate the wound healing potential of okra (Abelmoschus esculentus) fruit. JOURNAL OF ETHNOPHARMACOLOGY 2022; 287:114843. [PMID: 34801610 DOI: 10.1016/j.jep.2021.114843] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 09/21/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Okra fruit (Abelmoschus esculentus (L.) Moench) has been extensively used for the treatment of skin damage and subcutaneous tissue abscess for many years in Turkish folk medicine. AIM OF STUDY In this study, we aimed to investigate the wound healing potential of okra fruit by in vitro and in vivo experimental models in detail. Furthermore, based on the results of experiments, a wound healing formulation was developed and its activity profile was studied. MATERIALS AND METHODS For this purpose, the phenolic, flavonoid and proanthocyanidin contents and chemical profile of aqueous and ethanolic extracts prepared from okra fruits cultivated in two different locations of Turkey, i.e. Aegean and Kilis regions, were comparatively determined and the tryptophan levels, which is known to be an influential factor in wound healing, were measured. Antioxidant activity of the okra fruit extracts was determined by DPPH test, ABTS radical scavenger activity, iron-binding capacity, total antioxidant capacity and copper reduction capacity assays. Moreover, antibacterial activity potentials of the aqueous and ethanolic extracts of okra fruits were determined. The protective effect of the extracts against H2O2-induced oxidative stress and anti-inflammatory activity were assessed in HDF (human dermal fibroblast) cells and in RAW 264.7 murine macrophages, respectively. The biocompatibility of the gel formulations prepared with the best performing extract were evaluated by human Epiderm™ reconstituted skin irritation test model. Wound-healing activity was investigated in rats by in vivo excision model and, histopathological examination of tissues and gene expression levels of inflammation markers were also determined. RESULTS According to our findings, the aqueous and ethanolic extracts of okra fruits were found to possess a rich in phenolic content. Besides, isoquercitrin was found to be a marker component in ethanolic extracts of okra fruits. Both extracts exhibited antioxidant activity with significant protective effect against H2O2-induced damage in HDF cells by diminishing the MDA level. Also, the highest dose of ethanolic extracts has displayed a potent anti-inflammatory activity on LPS-induced RAW264.7 cells. Besides, both water and ethanolic extracts were shown to possess antimicrobial activity. On the other hand, the formulations prepared from the extracts were found non-irritant on in vitro Epiderm™-SIT. In vivo excision assay showed that tissue TGF-β and IL-1β levels were significantly decreased by the 5% okra ethanolic gel formulation. The histopathological analysis also demonstrated that collagenisation and granulation tissue maturation were found higher in 5% (w/v) okra ethanolic extract-treated group. CONCLUSION 5% of okra ethanolic extract might be suggested as a potent wound healing agent based on the antimicrobial, antioxidant and anti-inflammatory tests. The proposed activity was also confirmed by the histopathological findings and gene expression analysis.
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Affiliation(s)
- Hande Sipahi
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey.
| | - Duygu Orak
- Yeditepe University, Faculty of Pharmacy, Drug, Cosmetic and Medical Device Research-Development and Analysis Laboratory, Istanbul, Turkey.
| | - Rengin Reis
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey; Acıbadem University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey.
| | - Kübra Yalman
- Yeditepe University, Faculty of Pharmacy, Department of Pharmacology, Istanbul, Turkey.
| | - Onur Şenol
- Atatürk University, Faculty of Pharmacy, Department of Analytical Chemistry, Erzurum, Turkey.
| | - Saziye Sezin Palabiyik-Yücelik
- Atatürk University, Faculty of Pharmacy, Department of Toxicology, Erzurum, Turkey; Clinical Research, Development and Design Application and Research Center, Atatürk University, 25240, Erzurum, Turkey.
| | - İnci Deniz
- Yeditepe University, Faculty of Pharmacy, Laboratory of Microbiological Analysis, İstanbul, Turkey.
| | - Derya Algül
- Yeditepe University, Faculty of Pharmacy, Department of Pharmaceutical Technology, İstanbul, Turkey.
| | - Etil Guzelmeric
- Yeditepe University, Faculty of Pharmacy, Department of Pharmacognosy, İstanbul, Turkey.
| | - M Engin Çelep
- Yeditepe University, Faculty of Pharmacy, Department of Pharmacognosy, İstanbul, Turkey.
| | - Sanem Argin
- Yeditepe University, Faculty of Engineering, Department of Food Engineering, İstanbul, Turkey.
| | - Ferda Özkan
- Yeditepe University, Medical Faculty, Pathology Department, Istanbul, Turkey.
| | - Zekai Halıcı
- Clinical Research, Development and Design Application and Research Center, Atatürk University, 25240, Erzurum, Turkey; Ataturk University, Faculty of Medicine, Pharmacology Department, Erzurum, Turkey.
| | - Ahmet Aydın
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey.
| | - Erdem Yesilada
- Yeditepe University, Faculty of Pharmacy, Department of Pharmacognosy, İstanbul, Turkey.
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15
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Peers S, Montembault A, Ladavière C. Chitosan hydrogels incorporating colloids for sustained drug delivery. Carbohydr Polym 2022; 275:118689. [PMID: 34742416 DOI: 10.1016/j.carbpol.2021.118689] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 02/07/2023]
Abstract
In today's biomedical research, a huge effort is being made towards the development of efficient drug delivery systems, achieving sustainable and controlled delivery of drugs. Chitosan (CS) hydrogels are high water content materials with very relevant biological properties to that purpose. Their use for a local and delayed delivery has already been demonstrated for a wide variety of therapeutic agents. One relatively recent strategy to improve these CS-based systems consists in the insertion of colloids, embedding drugs, within their three-dimensional matrix. This provides a second barrier to the diffusion of drugs through the system, and allows to better control their release. The main objective of this review is to report the many existing complex systems composed of CS hydrogels embedding different types of colloids used as drug delivery devices to delay the release of drugs. The various biomedical applications of such final systems are also detailed in this review.
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Affiliation(s)
- S Peers
- University of Lyon, CNRS, Claude Bernard Lyon 1 University, INSA, Ingénierie des Matériaux Polymères, IMP UMR 5223, 15 bd A. Latarjet, F-69622 Villeurbanne, France
| | - A Montembault
- University of Lyon, CNRS, Claude Bernard Lyon 1 University, INSA, Ingénierie des Matériaux Polymères, IMP UMR 5223, 15 bd A. Latarjet, F-69622 Villeurbanne, France.
| | - C Ladavière
- University of Lyon, CNRS, Claude Bernard Lyon 1 University, INSA, Ingénierie des Matériaux Polymères, IMP UMR 5223, 15 bd A. Latarjet, F-69622 Villeurbanne, France.
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Hemmingsen LM, Škalko-Basnet N, Jøraholmen MW. The Expanded Role of Chitosan in Localized Antimicrobial Therapy. Mar Drugs 2021; 19:697. [PMID: 34940696 PMCID: PMC8704789 DOI: 10.3390/md19120697] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Chitosan is one of the most studied natural origin polymers for biomedical applications. This review focuses on the potential of chitosan in localized antimicrobial therapy to address the challenges of current rising antimicrobial resistance. Due to its mucoadhesiveness, chitosan offers the opportunity to prolong the formulation residence time at mucosal sites; its wound healing properties open possibilities to utilize chitosan as wound dressings with multitargeted activities and more. We provide an unbiased overview of the state-of-the-art chitosan-based delivery systems categorized by the administration site, addressing the site-related challenges and evaluating the representative formulations. Specifically, we offer an in-depth analysis of the current challenges of the chitosan-based novel delivery systems for skin and vaginal infections, including its formulations optimizations and limitations. A brief overview of chitosan's potential in treating ocular, buccal and dental, and nasal infections is included. We close the review with remarks on toxicity issues and remaining challenges and perspectives.
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Affiliation(s)
- Lisa Myrseth Hemmingsen
- Drug Transport and Delivery Research Group, Department of Pharmacy, UiT The Arctic University of Norway, Universitetsvegen 57, 9037 Tromsø, Norway;
| | | | - May Wenche Jøraholmen
- Drug Transport and Delivery Research Group, Department of Pharmacy, UiT The Arctic University of Norway, Universitetsvegen 57, 9037 Tromsø, Norway;
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17
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A New Approach to Atopic Dermatitis Control with Low-Concentration Propolis-Loaded Cold Cream. Pharmaceutics 2021; 13:pharmaceutics13091346. [PMID: 34575421 PMCID: PMC8466707 DOI: 10.3390/pharmaceutics13091346] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/19/2021] [Accepted: 08/24/2021] [Indexed: 11/18/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease that is difficult to treat. Traditional cold cream, a water-in-oil emulsion made from beeswax, is used to alleviate AD symptoms in clinical practice, although its effectiveness has not been scientifically proven. The addition of propolis has the potential to impart anti-inflammatory properties to cold cream. However, in high concentrations, propolis can trigger allergic reactions. Thus, the objective of this work was to develop a cold cream formulation based on purified beeswax containing the same amount of green propolis present in raw beeswax. The impact of adding this low propolis concentration to cold cream on AD control was evaluated in patients compared to cold cream without added propolis (CBlank). Raw beeswax was chemically characterized to define the propolis concentration added to the propolis-loaded cold cream (CPropolis). The creams were characterized as to their physicochemical, mechanical, and rheological characteristics. The effect of CPropolis and CBlank on the quality of life, disease severity, and skin hydration of patients with AD was evaluated in a triple-blind randomized preclinical study. Concentrations of 34 to 120 ng/mL of green propolis extract reduced TNF-α levels in LPS-stimulated macrophage culture. The addition of propolis to cold cream did not change the cream’s rheological, mechanical, or bioadhesive properties. The preclinical study suggested that both creams improved the patient’s quality of life. Furthermore, the use of CPropolis decreased the disease severity compared to CBlank.
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18
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Development of In-Situ Spray for Local Delivery of Antibacterial Drug for Hidradenitis Suppurativa: Investigation of Alternative Formulation. Polymers (Basel) 2021; 13:polym13162770. [PMID: 34451309 PMCID: PMC8397977 DOI: 10.3390/polym13162770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/07/2021] [Accepted: 08/10/2021] [Indexed: 12/16/2022] Open
Abstract
Hidradenitis suppurativa (HS) has been considered an orphan disease with limited treatments available. The available topical treatment for this condition is clindamycin lotion; however, short retention and frequent application are the main setbacks. Thus, the present study aimed to attain an optimized antibacterial in situ spray formulation for the hidradenitis suppurativa skin condition, which gels once in contact with the skin surface at around 37 °C and possesses bioadhesion as well as sustained-release properties of the incorporated drug. Different concentrations of thermo-reversible gelling polymer, Pluronic F-127, were investigated along with the selected bioadhesive polymers, HPMC and SA. The optimized formulation F3 consisting of 18% Pluronic F-127 with 0.2% HPMC and 0.2% SA was characterized based on various physicochemical properties. The gelation temperature of F3 was found to be 29.0 ± 0.50 °C with a gelation time of 1.35 ± 0.40 min and a pH of 5.8. F3 had the viscosity of 178.50 ± 5.50 cP at 25 °C and 7800 ± 200 cP at 37 °C as the gel set. The optimized formulation was found to be bioadhesive and cytocompatible. Cumulative drug release was 65.05% within the time-frame of 8 h; the release pattern of the drug followed zero-order kinetics with the Higuchi release mechanism. The average zone of inhibition was found to be 43.44 ± 1.34 mm. The properties of F3 formulation reflect to improve residence time at the site of application and can enhance sustained drug release. Therefore, it could be concluded that optimized formulation has better retention and enhanced antimicrobial activity for superior efficacy against HS.
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Hemmingsen LM, Giordani B, Pettersen AK, Vitali B, Basnet P, Škalko-Basnet N. Liposomes-in-chitosan hydrogel boosts potential of chlorhexidine in biofilm eradication in vitro. Carbohydr Polym 2021; 262:117939. [PMID: 33838816 DOI: 10.1016/j.carbpol.2021.117939] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/16/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022]
Abstract
Successful treatment of skin infections requires eradication of biofilms found in up to 90 % of all chronic wounds, causing delayed healing and increased morbidity. We hypothesized that chitosan hydrogel boosts the activity of liposomally-associated membrane active antimicrobials (MAA) and could potentially improve bacterial and biofilm eradication. Therefore, liposomes (∼300 nm) bearing chlorhexidine (CHX; ∼50 μg/mg lipid) as a model MAA were incorporated into chitosan hydrogel. The novel CHX-liposomes-in-hydrogel formulation was optimized for skin therapy. It significantly inhibited the production of nitric oxide (NO) in lipopolysaccharide (LPS)-induced macrophage and almost completely reduced biofilm formation. Moreover, it reduced Staphylococcus aureus and Pseudomonas aeruginosa adherent bacterial cells in biofilm by 64.2-98.1 %. Chitosan hydrogel boosted the anti-inflammatory and antimicrobial properties of CHX.
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Affiliation(s)
- Lisa Myrseth Hemmingsen
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø, The Arctic University of Norway, Universitetsvegen 57, 9037, Tromsø, Norway
| | - Barbara Giordani
- Molecular and Applied Microbiology, Department of Pharmacy and Biotechnology, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
| | - Ann Kristin Pettersen
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø, The Arctic University of Norway, Universitetsvegen 57, 9037, Tromsø, Norway
| | - Beatrice Vitali
- Molecular and Applied Microbiology, Department of Pharmacy and Biotechnology, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
| | - Purusotam Basnet
- IVF Clinic, Department of Obstetrics and Gynecology, University Hospital of North Norway, Sykehusvegen 38, 9019, Tromsø, Norway; Women's Health and Perinatology Research Group, Department of Clinical Medicine, University of Tromsø, The Arctic University of Norway, Universitetsveien 57, 9037, Tromsø, Norway
| | - Nataša Škalko-Basnet
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø, The Arctic University of Norway, Universitetsvegen 57, 9037, Tromsø, Norway.
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20
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Liposomes-In-Hydrogel Delivery System Enhances the Potential of Resveratrol in Combating Vaginal Chlamydia Infection. Pharmaceutics 2020; 12:pharmaceutics12121203. [PMID: 33322392 PMCID: PMC7764002 DOI: 10.3390/pharmaceutics12121203] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/02/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Chlamydia trachomatis is the most common cause of bacterial sexually transmitted infections and causes serious reproductive tract complications among women. The limitations of existing oral antibiotics and treatment of antimicrobial resistance require alternative treatment options. We are proposing, for the first time, the natural polyphenol resveratrol (RES) in an advanced delivery system comprising liposomes incorporated in chitosan hydrogel, for the localized treatment of C. trachomatis infection. Both free RES and RES liposomes-in-hydrogel inhibited the propagation of C. trachomatis in a concentration-dependent manner, assessed by the commonly used in vitro model comprising McCoy cells. However, for lower concentrations, the anti-chlamydial effect of RES was enhanced when incorporated into a liposomes-in-hydrogel delivery system, with inhibition of 78% and 94% for 1.5 and 3 µg/mL RES, respectively for RES liposomes-in-hydrogel, compared to 43% and 72%, respectively, for free RES. Furthermore, RES liposomes-in-hydrogel exhibited strong anti-inflammatory activity in vitro, in a concentration-dependent inhibition of nitric oxide production in the LPS-induced macrophages (RAW 264.7). The combination of a natural substance exhibiting multi-targeted pharmacological properties, and a delivery system that provides enhanced activity as well as applicability for vaginal administration, could be a promising option for the localized treatment of C. trachomatis infection.
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Guyot C, Cerruti M, Lerouge S. Injectable, strong and bioadhesive catechol-chitosan hydrogels physically crosslinked using sodium bicarbonate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111529. [PMID: 33255082 DOI: 10.1016/j.msec.2020.111529] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/26/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
Fast-gelling chitosan thermosensitive hydrogels have proven to be excellent matrices for targeted drug-delivery and cell therapy. In this work, we demonstrate the possibility of designing injectable bioadhesive hydrogels with a high gelation rate by modifying chitosan with catechol (cat-CH) and using sodium bicarbonate (SHC) as a gelling agent. Cat-CH/SHC hydrogels gel under 5 min at 37 °C and reach a high secant modulus after 24 h (E = 90 kPa at 50% strain). Besides, they show significantly higher adhesion to tissues than chitosan hydrogels thanks to the combination of catechol grafting and physical crosslinking. Their pH and osmolality stayed inside the physiological range. While biocompability tests will be mandatory to conclude regarding their potential for drug or cell encapsulation, these hydrogels uniquely combine physiological compatibility, injectability, fast gelation, good cohesion, and bioadhesion.
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Affiliation(s)
- Capucine Guyot
- Dept of Mechanical Engineering, École de Technologie Supérieure, 1100 rue Notre-Dame Ouest, Montréal, QC H3C 1K3, Canada; Centre de Recherche du CHUM, 900 Rue Saint-Denis, Montréal, QC H2X 0A9, Canada.
| | - Marta Cerruti
- Dept of Materials Engineering, McGill University, 3610 Rue University, Montréal, QC H3A 0C5, Canada.
| | - Sophie Lerouge
- Dept of Mechanical Engineering, École de Technologie Supérieure, 1100 rue Notre-Dame Ouest, Montréal, QC H3C 1K3, Canada; Centre de Recherche du CHUM, 900 Rue Saint-Denis, Montréal, QC H2X 0A9, Canada.
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Arnaldi P, Pastorino L, Monticelli O. On an effective approach to improve the properties and the drug release of chitosan-based microparticles. Int J Biol Macromol 2020; 163:393-401. [DOI: 10.1016/j.ijbiomac.2020.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/19/2020] [Accepted: 07/03/2020] [Indexed: 11/28/2022]
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Thermosensitive hydrogels for local delivery of 5-fluorouracil as neoadjuvant or adjuvant therapy in colorectal cancer. Eur J Pharm Biopharm 2020; 157:154-164. [PMID: 33222768 DOI: 10.1016/j.ejpb.2020.10.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/01/2020] [Accepted: 10/19/2020] [Indexed: 12/18/2022]
Abstract
Spurred by high risk for local tumor recurrence and non-specific toxicity of systemic chemotherapy, clinicians have recently granted a growing interest to locoregional therapeutic strategies. In this perspective, we recently developed a multipurpose thermosensitive hydrogel based on reversible thermogelling properties of poloxamers P407 and P188, a bioadhesive excipient and antineoplastic effect of 5-fluorouracil (5-FU) for the local treatment of colorectal cancer (CRC) in ectopic CT26 murine models. Antitumor efficacy was assessed in mice following intratumoral (IT) injection mimicking neoadjuvant therapy and subcutaneous (SC) application after tumor excision simulating adjuvant therapy. Rheological characterization disclosed that P407/P188/alginate 20/2/1% w/v thermosensitive hydrogel is an injectable free-flowing solution at ambient temperature that undergoes a SOL-GEL transition at 26.0 °C ± 0.6 °C and thereby forms in situ a non-flowing gel at physiological temperature. The generated gel presented an elastic behavior and responded according to a shear-thinning fluid upon shear rate. Although delayed by the addition of alginate 1% w/v, 5-FU is released mainly by diffusion mechanism. The local delivery of 5-FU from P407/P188/alginate/5-FU 20/2/1/0.5% w/v hydrogel in the preclinical tumor models led to a significant tumor growth delay. These results demonstrated that poloxamer-based thermosensitive hydrogels provide a simple and efficient means for local chemotherapeutics delivery.
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Palakkara S, Maiti SK, Mohan D, S. S, R. R, E. K, Kumar N. Healing potential of chitosan and decellularized intestinal matrix with mesenchymal stem cells and growth factor in burn wound in rat. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.wndm.2020.100192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ilochonwu BC, Urtti A, Hennink WE, Vermonden T. Intravitreal hydrogels for sustained release of therapeutic proteins. J Control Release 2020; 326:419-441. [PMID: 32717302 DOI: 10.1016/j.jconrel.2020.07.031] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/11/2022]
Abstract
This review highlights how hydrogel formulations can improve intravitreal protein delivery to the posterior segment of the eye in order to increase therapeutic outcome and patient compliance. Several therapeutic proteins have shown excellent clinical successes for the treatment of various intraocular diseases. However, drug delivery to the posterior segment of the eye faces significant challenges due to multiple physiological barriers preventing drugs from reaching the retina, among which intravitreal protein instability and rapid clearance from the site of injection. Hence, frequent injections are required to maintain therapeutic levels. Moreover, because the world population ages, the number of patients suffering from ocular diseases, such as age-related macular degeneration (AMD) and diabetic retinopathy (DR) is increasing and causing increased health care costs. Therefore, there is a growing need for suitable delivery systems able to tackle the current limitations in retinal protein delivery, which also may reduce costs. Hydrogels have shown to be promising delivery systems capable of sustaining release of therapeutic proteins and thus extending their local presence. Here, an extensive overview of preclinically developed intravitreal hydrogels is provided with attention to the rational design of clinically useful intravitreal systems. The currently used polymers, crosslinking mechanisms, in vitro/in vivo models and advancements are discussed together with the limitations and future perspective of these biomaterials.
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Affiliation(s)
- Blessing C Ilochonwu
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Arto Urtti
- Centre for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki, Finland; School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Tina Vermonden
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.
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Nawrotek K, Tylman M, Adamus-Włodarczyk A, Rudnicka K, Gatkowska J, Wieczorek M, Wach R. Influence of chitosan average molecular weight on degradation and stability of electrodeposited conduits. Carbohydr Polym 2020; 244:116484. [PMID: 32536389 DOI: 10.1016/j.carbpol.2020.116484] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 02/02/2023]
Abstract
Tubular chitosan-based hydrogels, obtained in an electrodeposition process, are subject of degradation and stability studies. The implants are prepared from polymer with different average molecular weight. This approach allows fabricating structures that vary in mass and wall thickness. The obtained implants are incubated in phosphate buffered solution (pH 7.4) with or without lysozyme up to 56 days at 37 °C. Subsequently, chemical, physical as well as mechanical properties of implants are evaluated. Although the initial physicomechanical properties are different, they change upon incubation and remain similar over its period. Finally, in vitro biocompatibility of implants is proven after assessing their action towards mHippoE-18 embryonic hippocampal cells and THP1-XBlue™ monocytes. Since dimensions of nerves and the gap length differ across the body and injury, respectively, the possibility to control properties of chitosan applied gives a tool to prepare implants with wall thickness adjusted to the specific peripheral nerve injury case.
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Affiliation(s)
- Katarzyna Nawrotek
- Department of Process Thermodynamics, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924, Lodz, Poland.
| | - Michał Tylman
- Department of Process Thermodynamics, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924, Lodz, Poland
| | - Agnieszka Adamus-Włodarczyk
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Wroblewskiego 15 Street, 93-590, Lodz, Poland
| | - Karolina Rudnicka
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16 Street, 90-237, Lodz, Poland
| | - Justyna Gatkowska
- Department of Immunoparasitology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16 Street, 90-237, Lodz, Poland
| | - Marek Wieczorek
- Department of Neurobiology, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 Street, 90-236, Lodz, Poland
| | - Radosław Wach
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Wroblewskiego 15 Street, 93-590, Lodz, Poland
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Ahsan A, Tian WX, Farooq MA, Khan DH. An overview of hydrogels and their role in transdermal drug delivery. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1740989] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Anam Ahsan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, P. R. China
| | - Wen-Xia Tian
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, P. R. China
| | - Muhammad Asim Farooq
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing Jiangsu, P. R. China
| | - Daulat Haleem Khan
- Department of Pharmacy, Lahore College of Pharmaceutical Sciences, Lahore, Pakistan
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Ternullo S, Schulte Werning LV, Holsæter AM, Škalko-Basnet N. Curcumin-In-Deformable Liposomes-In-Chitosan-Hydrogel as a Novel Wound Dressing. Pharmaceutics 2019; 12:pharmaceutics12010008. [PMID: 31861794 PMCID: PMC7022996 DOI: 10.3390/pharmaceutics12010008] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 02/06/2023] Open
Abstract
A liposomes-in-hydrogel system as an advanced wound dressing for dermal delivery of curcumin was proposed for improved chronic wound therapy. Curcumin, a multitargeting poorly soluble active substance with known beneficial properties for improved wound healing, was incorporated in deformable liposomes to overcome its poor solubility. Chitosan hydrogel served as a vehicle providing superior wound healing properties. The novel system should assure sustained skin delivery of curcumin, and increase its retention at the skin site, utilizing both curcumin and chitosan to improve the therapy outcome. To optimize the properties of the formulation and determine the effect of the liposomal charge on the hydrogel properties, curcumin-containing deformable liposomes (DLs) with neutral (NDLs), cationic (CDLs), and anionic (ADLs) surface properties were incorporated in chitosan hydrogel. The charged DLs affected the hydrogel’s hardness, cohesiveness, and adhesiveness. Importantly, the incorporation of DLs, regardless of their surface charge, in chitosan hydrogel did not decrease the system’s bioadhesion to human skin. Stability testing revealed that the incorporation of CDLs in hydrogel preserved hydrogel´s bioadhesiveness to a higher degree than both NDLs and ADLs. In addition, CDLs-in-hydrogel enabled the most sustained skin penetration of curcumin. The proposed formulation should be further evaluated in a chronic wound model.
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Ngampunwetchakul L, Toonkaew S, Supaphol P, Suwantong O. Semi-solid poly(vinyl alcohol) hydrogels containing ginger essential oil encapsulated in chitosan nanoparticles for use in wound management. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1880-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Application of Chitosan in Bone and Dental Engineering. Molecules 2019; 24:molecules24163009. [PMID: 31431001 PMCID: PMC6720623 DOI: 10.3390/molecules24163009] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/08/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022] Open
Abstract
Chitosan is a deacetylated polysaccharide from chitin, the natural biopolymer primarily found in shells of marine crustaceans and fungi cell walls. Upon deacetylation, the protonation of free amino groups of the d-glucosamine residues of chitosan turns it into a polycation, which can easily interact with DNA, proteins, lipids, or negatively charged synthetic polymers. This positive-charged characteristic of chitosan not only increases its solubility, biodegradability, and biocompatibility, but also directly contributes to the muco-adhesion, hemostasis, and antimicrobial properties of chitosan. Combined with its low-cost and economic nature, chitosan has been extensively studied and widely used in biopharmaceutical and biomedical applications for several decades. In this review, we summarize the current chitosan-based applications for bone and dental engineering. Combining chitosan-based scaffolds with other nature or synthetic polymers and biomaterials induces their mechanical properties and bioactivities, as well as promoting osteogenesis. Incorporating the bioactive molecules into these biocomposite scaffolds accelerates new bone regeneration and enhances neovascularization in vivo.
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31
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Tran TTD, Tran PHL. Controlled Release Film Forming Systems in Drug Delivery: The Potential for Efficient Drug Delivery. Pharmaceutics 2019; 11:E290. [PMID: 31226748 PMCID: PMC6630634 DOI: 10.3390/pharmaceutics11060290] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/07/2019] [Accepted: 05/19/2019] [Indexed: 12/30/2022] Open
Abstract
Despite many available approaches for transdermal drug delivery, patient compliance and drug targeting at the desired concentration are still concerns for effective therapies. Precise and efficient film-forming systems provide great potential for controlling drug delivery through the skin with the combined advantages of films and hydrogels. The associated disadvantages of both systems (films and hydrogels) will be overcome in film-forming systems. Different strategies have been designed to control drug release through the skin, including changes to film-forming polymers, plasticizers, additives or even model drugs in formulations. In the current review, we aim to discuss the recent advances in film-forming systems to provide the principles and review the methods of these systems as applied to controlled drug release. Advances in the design of film-forming systems open a new generation of these systems.
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Affiliation(s)
- Thao T D Tran
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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Laffleur F, Küppers P. Adhesive alginate for buccal delivery in aphthous stomatitis. Carbohydr Res 2019; 477:51-57. [DOI: 10.1016/j.carres.2019.03.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/10/2019] [Accepted: 03/19/2019] [Indexed: 12/21/2022]
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33
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Das D, Cho H, Kim N, Pham TTH, Kim IG, Chung EJ, Noh I. A terpolymeric hydrogel of hyaluronate-hydroxyethyl acrylate-gelatin methacryloyl with tunable properties as biomaterial. Carbohydr Polym 2019; 207:628-639. [DOI: 10.1016/j.carbpol.2018.12.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/29/2018] [Accepted: 12/10/2018] [Indexed: 12/13/2022]
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Localized Therapy of Vaginal Infections and Inflammation: Liposomes-In-Hydrogel Delivery System for Polyphenols. Pharmaceutics 2019; 11:pharmaceutics11020053. [PMID: 30691199 PMCID: PMC6410284 DOI: 10.3390/pharmaceutics11020053] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 01/17/2023] Open
Abstract
Natural polyphenols, such as resveratrol (RES) or epicatechin (EPI), are attractive for treatments of various diseases, including vaginal infections and inflammation, because of their strong anti-oxidative and anti-inflammatory properties. However, their low solubility and consequent poor bioavailability limit their therapeutic uses. To overcome these limitations, a vaginal delivery system comprising either RES or EPI liposomes-in-hydrogel was developed. This system permits therapeutic action of both liposomal polyphenol (RES or EPI) and chitosan-based hydrogel. Liposomes of around 200 nm and entrapment efficiency of 81% and 77% for RES and EPI, respectively, were incorporated into chitosan hydrogel, respectively. Medium molecular weight chitosan (2.5%, w/w) was found to have optimal texture properties and mucoadhesiveness in ex vivo conditions. The in vitro release studies confirmed the sustained release of polyphenols from the system. Both liposomal polyphenols and polyphenols-in-liposomes-in-hydrogel exhibited only minor effects on cell toxicity. EPI showed superior radical scavenging activity at lower concentrations compared to antioxidants vitamin C and E. Anti-inflammatory activity expressed as the inhibitory activity of formulations on the NO production in the LPS-induced macrophages (RAW 264.7) confirmed the superiority of EPI liposomes-in-hydrogel. The plain liposomes-in-hydrogel also exhibited potent anti-inflammatory activity, suggesting that chitosan hydrogel acts in synergy regarding anti-inflammatory effect of formulation.
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35
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Das D, Pham HTT, Lee S, Noh I. Fabrication of alginate-based stimuli-responsive, non-cytotoxic, terpolymric semi-IPN hydrogel as a carrier for controlled release of bovine albumin serum and 5-amino salicylic acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 98:42-53. [PMID: 30813044 DOI: 10.1016/j.msec.2018.12.127] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 12/28/2018] [Accepted: 12/28/2018] [Indexed: 12/11/2022]
Abstract
Herein, we report a functionalized alginate(Alg)-based terpolymeric semi-interpenetrating (semi-IPN) hydrogel, synthesized via free radical polymerization for the delivery of bovine albumin serum (BSA) and 5-amino salicylic acid (5-ASA). To improve mechanical properties, and to modulate surface morphology of Alg, 2-hydroxyethyl acrylate (HEA) was grafted on alginate and then crosslinked using poly(ethylene glycol) diacrylate (PEGDA). The probable structure and compositions of the synthesized semi-IPN terpolymer were identified by FTIR, 1H-HR-MAS NMR, and TGA analyses. Achievement of equilibrium swelling state (ESS) and higher elastic modulus values confirmed terpolymer gel formation in aqueous media. Differences in the ESS of the prepared gel at pH 2.5 and 7.4 signify its stimuli-responsive behaviour. The influence of PEGDA on swelling, mechanical properties, surface morphology, cell viability and proliferation, and BSA and 5-ASA delivery were characterized. SEM images show that higher % PEGDA resulted in smaller sized pores in the gel network. Texture analyses demonstrate that hardness, adhesiveness and chewiness of the gel were enhanced at higher PEGDA concentrations. Increases in PEGDA concentration also induced increases in osteoblastic cell viability and higher rates of cell proliferation compared with gels containing lower concentrations of PEGDA. The release results indicate that the gels containing higher concentrations of PEGDA more sustainably release BSA and 5-ASA at 5 days and 30 h, respectively. The experimental data revealed that the synthesized terpolymeric semi-IPN hydrogel may have useful biomedical applications, especially as a carrier of protein (BSA), or 5-ASA (a therapeutic option for conditions of the colon such as Crohn's Disease and Ulcerative Colitis).
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Affiliation(s)
- Dipankar Das
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Hien Thi Thu Pham
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Seongho Lee
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Insup Noh
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
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36
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Laffleur F. Novel adhesive hyaluronic acid based solid dosage form for pediatric application. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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37
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Wiącek AE, Gozdecka A, Jurak M. Physicochemical Characteristics of Chitosan–TiO2 Biomaterial. 1. Stability and Swelling Properties. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04257] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Agnieszka E. Wiącek
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
| | - Agata Gozdecka
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
| | - Małgorzata Jurak
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
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38
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1,3,5-Triazine-2,4,6-tribenzaldehyde derivative as a new crosslinking agent for synthesis of pH-thermo dual responsive chitosan hydrogels and their nanocomposites: Swelling properties and drug release behavior. Int J Biol Macromol 2017; 105:1088-1095. [DOI: 10.1016/j.ijbiomac.2017.07.128] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/09/2017] [Accepted: 07/19/2017] [Indexed: 11/22/2022]
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39
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Varshosaz J, Taymouri S, Minaiyan M, Rastegarnasab F, Baradaran A. Development and in vitro/in vivo evaluation of HPMC/chitosan gel containing simvastatin loaded self-assembled nanomicelles as a potent wound healing agent. Drug Dev Ind Pharm 2017; 44:276-288. [DOI: 10.1080/03639045.2017.1391832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Minaiyan
- Department of Pharmacology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Rastegarnasab
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azar Baradaran
- Department of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
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40
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Formulation and in-vitro efficacy of antifungal mucoadhesive polymeric matrices for the delivery of miconazole nitrate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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41
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Amato A, Migneco LM, Martinelli A, Pietrelli L, Piozzi A, Francolini I. Antimicrobial activity of catechol functionalized-chitosan versus Staphylococcus epidermidis. Carbohydr Polym 2017; 179:273-281. [PMID: 29111051 DOI: 10.1016/j.carbpol.2017.09.073] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/08/2017] [Accepted: 09/22/2017] [Indexed: 11/20/2022]
Abstract
Protein mussel-inspired adhesive polymers, characterized by the presence of catechol groups, possess superior muco-adhesive properties and have great potentiality in wound healing. Suitable materials for wound dressing should properly combine muco-adhesiveness and antimicrobial activity. In this work, catechol-functionalized chitosan was obtained by reaction with hydrocaffeic acid (HCAF), in order to investigate how catechol introduction at different content could affect the intrinsic antimicrobial activity of the polymer itself. Unexpectedly, an enhancement of chitosan antimicrobial activity was observed after catechol functionalization, with a fourfold reduction in the polymer minimum inhibitory concentration versus Staphylococcus epidermidis. Additionally, a commercial wound dressing coated with one of the synthesized CS-HCAF derivatives showed a significant reduction in the adhesion of S. epidermidis compared to the uncoated dressing (3-log reduction). The CS-HCAF derivatives also showed an interesting antioxidant property (EC50 ranging from 20 to 60μg/mL), which further confirms the potentiality of these materials as wound dressings.
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Affiliation(s)
- Andrea Amato
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Rome, Italy.
| | - Luisa Maria Migneco
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Rome, Italy.
| | - Andrea Martinelli
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Rome, Italy.
| | - Loris Pietrelli
- ENEA, C.R. Casaccia, Via Anguillarese 301, 00100 Rome, Italy.
| | - Antonella Piozzi
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Rome, Italy.
| | - Iolanda Francolini
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro 5, 00185 Rome, Italy.
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43
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Demir YK, Metin AÜ, Şatıroğlu B, Solmaz ME, Kayser V, Mäder K. Poly (methyl vinyl ether-co-maleic acid) – Pectin based hydrogel-forming systems: Gel, film, and microneedles. Eur J Pharm Biopharm 2017; 117:182-194. [DOI: 10.1016/j.ejpb.2017.04.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/01/2017] [Accepted: 04/19/2017] [Indexed: 02/07/2023]
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44
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Ingebrigtsen SG, Didriksen A, Johannessen M, Škalko-Basnet N, Holsæter AM. Old drug, new wrapping − A possible comeback for chloramphenicol? Int J Pharm 2017; 526:538-546. [DOI: 10.1016/j.ijpharm.2017.05.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/07/2017] [Accepted: 05/11/2017] [Indexed: 10/19/2022]
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45
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Tomczyk M, Sosnowska K, Pleszczyńska M, Strawa J, Wiater A, Grochowski DM, Tomczykowa M, Winnicka K. Hydrogel Containing an Extract of Tormentillae Rhizoma for the Treatment of Biofilm-Related Oral Diseases. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In the present study, hydrogels containing the dried extract of tormentil ( Potentilla erecta (L.) Raeusch., Rosaceae) were designed and qualitatively evaluated regarding their viscosity, thixotropy, and texture properties. As mucoadhesiveness is a crucial factor determining drug retention within the oral cavity, mucoadhesive properties expressed as the work of adhesion and maximum detachment force under the presence of porcine buccal mucosa and two different models of mucoadhesive layers: mucin and gelatin discs were evaluated. The fingerprints of the analyzed tormentil extract were established by using a LC-ESI-MS method. The dominating compounds of the tested extract are oligomeric proanthocyanidins and agrimoniin. This study reveals that designed hydrogels are promising semi-solid delivery systems for the dry extract of tormentil with beneficial mucoadhesive, thixotropic, and texture characteristics and may be utilized as platforms for tormentil delivery to the oral cavity in periodontal diseases. In vitro evaluation of the efficacy of the tormentil hydrogel against cariogenic Streptococcus mutans biofilms was also performed. The hydrogel significantly reduced artificial biofilm formation. For all Streptococci, complete inhibition was revealed at a final concentration of the extract of 2 mg/mL. These beneficial characteristics, as well as the anti-biofilm activity, enable its use for dental care, but further clinical studies are required.
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Affiliation(s)
- Michał Tomczyk
- Department of Pharmacognosy, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
| | - Katarzyna Sosnowska
- Department of Pharmaceutical Technology, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
| | - Małgorzata Pleszczyńska
- Department of Industrial Microbiology, Institute of Microbiology and Biotechnology, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Jakub Strawa
- Department of Pharmacognosy, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
| | - Adrian Wiater
- Department of Industrial Microbiology, Institute of Microbiology and Biotechnology, Maria Curie-Skłodowska University, ul. Akademicka 19, 20-033 Lublin, Poland
| | - Daniel M. Grochowski
- Department of Pharmacognosy, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
| | - Monika Tomczykowa
- Department of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Bialystok, ul. Mickiewicza 2a, 15-222 Bialystok, Poland
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Abstract
Aim: Doxepin is a traditional tricyclic antidepressant with analgesic and anesthetic properties when applied topically to the mucosa. Doxepin is one approach in treating insomnia and depression in Parkinson's disease. Patients with Parkinson's disease suffer difficulties in swallowing. Therefore, it was the aim of this study to develop a buccal-adhesive delivery system. Methods: Pectin was modified with cysteine. Stability assays in form of disintegration assay according to the Ph.Eur were performed. Furthermore, bioadhesiveness on buccal mucosa was investigated incorporating the drug doxepin. Results: The adhesiveness was improved 1.4-fold and revealed a sustained release over 3 h. Conclusion: Taking these findings into account, the modifications render this designed excipient fruitful for buccal delivery.
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Valencia-Gómez LE, Martel-Estrada SA, Vargas-Requena C, Rivera-Armenta JL, Alba-Baena N, Rodríguez-González C, Olivas-Armendáriz I. Chitosan/Mimosa tenuiflora films as potential cellular patch for skin regeneration. Int J Biol Macromol 2016; 93:1217-1225. [PMID: 27693339 DOI: 10.1016/j.ijbiomac.2016.09.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/26/2016] [Accepted: 09/20/2016] [Indexed: 01/30/2023]
Abstract
Bio-composites films were prepared by casting and drying of aqueous solutions containing different weight ratios of chitosan and bark of Mimosa tenuiflora. The physico-chemical and functional properties of the films were characterized by scanning electron microscopy, dynamical mechanical analysis, wettability, cytotoxicity and in vitro antibacterial activities. The morphology studies confirmed that the presence of Mimosa tenuiflora change the surface of films. Moreover, the incorporation of Mimosa tenuiflora improved the thermal stability of the films, as it was indicated by the changes in the glass temperatures obtained. Water-uptake ability changed in relation to polymeric composition of film. This property increased by the addition of Mimosa tenuiflora to the film. Improved antibacterial properties were measured against Escherichia Coli and Micrococcus lysodeikticus or luteus. Finally, cytotoxicity was studied by MTT assay and the films were non-toxic. These preliminary results provide a cheap way to prepare chitosan/Mimosa tenuiflora films for wound healing and skin regeneration.
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Affiliation(s)
- Laura Elizabeth Valencia-Gómez
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ave. Del Charro #610 norte, Col. Partido Romero, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
| | - Santos Adriana Martel-Estrada
- Instituto de arquitectura diseño y arte, Universidad Autónoma de Ciudad Juárez, Ave. Del Charro #610 norte, Col. Partido Romero, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
| | - Claudia Vargas-Requena
- Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo envolvente del PRONAF y Estocolmo, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
| | - José Luis Rivera-Armenta
- Centro de investigación en petroquímica secundaria, Instituto tecnológico de Ciudad Madero. Prol. Bahia de Aldair y Ave. De las Bahias, parque de la pequeña y media industria, 89600 Altamira, Tams
| | - Noe Alba-Baena
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ave. Del Charro #610 norte, Col. Partido Romero, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
| | - Claudia Rodríguez-González
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ave. Del Charro #610 norte, Col. Partido Romero, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
| | - Imelda Olivas-Armendáriz
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ave. Del Charro #610 norte, Col. Partido Romero, C.P.32320, Cd. Juárez, Chihuahua, Mexico.
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Grießinger JA, Bonengel S, Partenhauser A, Ijaz M, Bernkop-Schnürch A. Thiolated polymers: evaluation of their potential as dermoadhesive excipients. Drug Dev Ind Pharm 2016; 43:204-212. [DOI: 10.1080/03639045.2016.1231809] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Sonja Bonengel
- Department of Pharmaceutical Technology, Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Alexandra Partenhauser
- Department of Pharmaceutical Technology, Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Muhammad Ijaz
- Department of Pharmaceutical Technology, Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Center for Chemistry and Biomedicine, Institute of Pharmacy, University of Innsbruck, Innsbruck, Austria
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Abstract
Background: Introducing the concept of mucoadhesion in the 1980s, application of mucoadhesive polymers for buccal drug delivery has been the subject of pharmaceutical interest. Aim: The purpose of this study was to modify well-known xanthan in order to remarkably boost its suitability for buccal adhesiveness. Method: Xanthan (X) was chemically modified by covalent binding of L-cysteine (SH) exhibiting sulfhydryl groups on the polymeric backbone via amide bond formation. Cytotoxicity, stability properties and mucoadhesiveness, respectively, of sulfhydryl-modified xanthan (H-SH) was investigated compared with unmodified xanthan (X). Results: According to cell viability studies X-SH was safe to use. X-SH revealed 1.61-fold higher stability in comparison to unmodified xanthan. Thereafter, mucoadhesion of X-SH augmented 8.35-fold in case of rotating cylinder assay. Tensile study showed 2.65-fold higher total work of adhesion when comparing X-SH with X. Conclusion: In completion, novel sulfhydryl-modified xanthan proved itself being a useful and promising excipient for buccal-adhesive delivery systems.
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Laffleur F, Bacher L, Vanicek S, Menzel C, Muhammad I. Next generation of buccadhesive excipient: Preactivated carboxymethyl cellulose. Int J Pharm 2016; 500:120-7. [DOI: 10.1016/j.ijpharm.2016.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/28/2015] [Accepted: 01/05/2016] [Indexed: 10/22/2022]
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