1
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Duarte JL, Di Filippo LD, Ribeiro TDC, Silva ACDJ, Hage-Melim LIDS, Duchon S, Carrasco D, Pinto MC, Corbel V, Chorilli M. Effective Mosquito Repellents: Myrcene- and Cymene-Loaded Nanohydrogels against Aedes aegypti. Pharmaceutics 2024; 16:1096. [PMID: 39204441 PMCID: PMC11360331 DOI: 10.3390/pharmaceutics16081096] [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: 07/22/2024] [Revised: 08/10/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024] Open
Abstract
Aedes mosquito-borne diseases remain a significant global health threat, necessitating effective control strategies. This study introduces monoterpenes-based nanohydrogels for potential use as repellents against Aedes aegypti, the primary dengue vector worldwide. We formulated hydrogels using cymene- and myrcene-based nanoemulsions with different polymers: chitosan, carboxymethylcellulose (CMC), and carbopol®. Our evaluations of rheological, texture, and bioadhesive properties identified CMC hydrogel as the most promising gelling agent for topical application, exhibiting sustained monoterpene release over 12 h with low skin permeation and high retention in the stratum corneum. Myrcene-loaded CMC hydrogel achieved a 57% feeding deterrence compared to 47% with cymene hydrogel in the mosquito membrane-feeding model. Molecular docking studies revealed interactions between myrcene and an essential amino acid (Ile116) in the Ae. aegypti odorant-binding protein 22 (AeOBP22), corroborating its higher repellent efficacy. These findings suggest that myrcene-loaded CMC hydrogels offer a promising, minimally invasive strategy for personal protection against Ae. aegypti and warrant further investigation to optimize monoterpene concentrations for vector control.
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Affiliation(s)
- Jonatas Lobato Duarte
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil; (J.L.D.); (L.D.D.F.); (T.d.C.R.)
| | - Leonardo Delello Di Filippo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil; (J.L.D.); (L.D.D.F.); (T.d.C.R.)
| | - Tais de Cássia Ribeiro
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil; (J.L.D.); (L.D.D.F.); (T.d.C.R.)
| | - Ana Carolina de Jesus Silva
- Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá 68903-419, Amapá, Brazil; (A.C.d.J.S.); (L.I.d.S.H.-M.)
| | - Lorane Izabel da Silva Hage-Melim
- Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá 68903-419, Amapá, Brazil; (A.C.d.J.S.); (L.I.d.S.H.-M.)
| | - Stéphane Duchon
- IRD, CNRS, University of Montpellier, MIVEGEC, 34000 Montpellier, France; (S.D.); (D.C.); (V.C.)
| | - David Carrasco
- IRD, CNRS, University of Montpellier, MIVEGEC, 34000 Montpellier, France; (S.D.); (D.C.); (V.C.)
| | - Mara Cristina Pinto
- Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Araraquara 14800-060, São Paulo, Brazil;
| | - Vincent Corbel
- IRD, CNRS, University of Montpellier, MIVEGEC, 34000 Montpellier, France; (S.D.); (D.C.); (V.C.)
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil; (J.L.D.); (L.D.D.F.); (T.d.C.R.)
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2
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Medeiros L, Dos Santos RF, da Rolt Nervis B, Jacobi M, Hashizume LN, Gazzi RP, Visioli F, Nunes JS, Lavayen V, De Franco VC, Daitx TS, Pereira SC, Ferreira GA, Pohlmann A, Guterres S, Frank LA, Bussamara R. Synthesis of films based on chitosan and protic ionic liquids to be used as wound dressing on the oral mucosa. Int J Biol Macromol 2023; 253:127134. [PMID: 37776933 DOI: 10.1016/j.ijbiomac.2023.127134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/14/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
Oral mucosal ulcerations expose connective tissue to different pathogens and this can progress to systemic infection. This study aimed to synthesize environmentally-friendly films with chitosan and protic ionic liquids, possessing mucoadhesive properties, activity against opportunistic microorganisms, enhanced malleability and mechanical resistance to be used as a wound dressing on the oral mucosa. Therefore, films with chitosan and 10, 35, and 50 % (wt/wt) of 2-hydroxy diethylammonium lactate, salicylate, and maleate protic ionic liquids were synthesized. Thickness measurements and mechanical properties analysis were performed. In addition, oral mucoadhesion, antimicrobial activity, and cytotoxicity properties were investigated. Results showed that the addition of 35wt% and 50wt% of all kinds of protic ionic liquids tested presented significant improvements in film thickness and mechanical properties. Films based on chitosan and the protic ionic liquid 2-hydroxy diethylammonium salicylate at percentages of 35 and 50wt% exhibited superior mucoadhesive properties, antimicrobial activity on opportunistic microorganisms and an improvement in their flexibility after immersion in synthetic saliva. Cytotoxicity results suggest that all kinds of chitosan/protic ionic liquids films tested are safe for intra-oral use. Therefore, the results of this study indicate that these materials could be good candidates for efficient and environmentally-friendly wound dressing films on the oral mucosa.
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Affiliation(s)
- Leonardo Medeiros
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Rogério F Dos Santos
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Brenda da Rolt Nervis
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Marly Jacobi
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Lina Naomi Hashizume
- Department of Preventive and Social Dentistry, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Rafaela P Gazzi
- Department of Preventive and Social Dentistry, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Júlia Silveira Nunes
- Department of Oral Pathology, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Vladimir Lavayen
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Vinícius C De Franco
- Laboratory of Magnetism, Institute of Physics, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Tales S Daitx
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Sandra Cerqueira Pereira
- Escola Politécnica(,) Department of Chemical Engineering, UFBA, R. Aristides Novis 2, CEP 40210-630 Salvador, BA, Brazil
| | - Gicelia Antonia Ferreira
- Escola Politécnica(,) Department of Chemical Engineering, UFBA, R. Aristides Novis 2, CEP 40210-630 Salvador, BA, Brazil
| | - Adriana Pohlmann
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Silvia Guterres
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Luiza Abrahão Frank
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Roberta Bussamara
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil.
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3
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Balian GMFC, Luiz MT, Filippo LDD, Chorilli M. Mucoadhesive liquid crystal precursor system for photodynamic therapy of oral cancer mediated by methylene blue. Photodiagnosis Photodyn Ther 2023; 44:103739. [PMID: 37582452 DOI: 10.1016/j.pdpdt.2023.103739] [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: 02/01/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/17/2023]
Abstract
Oral cancer is one of the most prevalent types of cancer head and neck cancers worldwide. Photodynamic therapy (PDT) has demonstrated great potential against cancers, reducing long-term morbidity. In this study, we investigated the incorporation of methylene blue (MB) in a mucoadhesive liquid crystal precursor system (LCPS) for oral cancer treatment. The photostability and the in vitro release, permeation, and retention profile of MB-loaded LCPS (MB-LCPS) were investigated, as well as its in vitro PDT activity against normal (HaCaT) and tumoral (HSC-3) cell lines. LCPS increased the photostability of MB and exhibited a prolonged release profile of MB. In addition, LCPS increased the retention of MB in the porcine esophageal mucosa by around 3 times higher than the MB solution. The retention of MB in LCPS was around 2 times greater than its permeability, which is suitable for guaranteeing the maintenance of the therapy in the oral cavity. In vitro cytotoxicity assay indicated that MB-LCPS increased the antitumoral activity of MB after 20 min of irradiation at 660 nm and 12.5 J/cm2. The results obtained suggest that the developed formulation is an interesting strategy for the potential application in the treatment of oral cancer by PDT.
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Affiliation(s)
- Giovana Maria Fioramonti Calixto Balian
- Department of Biosciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, São Paulo, Brazil; Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, Sao Paulo 14800-903, Brazil
| | - Marcela Tavares Luiz
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, Sao Paulo 14800-903, Brazil.
| | - Leonardo Delello Di Filippo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, Sao Paulo 14800-903, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, Sao Paulo 14800-903, Brazil.
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4
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Victorelli FD, Rodero CF, Lutz‐Bueno V, Chorilli M, Mezzenga R. Amyloid Fibrils Enhance the Topical Bio-Adhesivity of Liquid Crystalline Mesophase-Based Drug Formulations. Adv Healthc Mater 2023; 12:e2202720. [PMID: 36681654 PMCID: PMC11468793 DOI: 10.1002/adhm.202202720] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/08/2023] [Indexed: 01/23/2023]
Abstract
Despite their distinctive secondary structure based on cross β-strands, amyloid fibrils (AF) are stable fibrous protein aggregates with features similar to collagen, one of the main components of the extracellular matrix, and thus constitute a potential scaffold for enhancing cell adhesion for topical applications. Here, the contribution of AF to skin bio-adhesivity aiming toward topical treatments is investigated. Liquid crystalline mesophase (LCM) based on phytantriol is formulated, with the aqueous phase containing either water or a solution of 4 wt% amyloid fibrils. Then resveratrol is added as a model anti-inflammatory molecule. The developed LCM presents a double gyroid Ia3d mesophase. The incorporation of AF into the LCM increases its bio-adhesive properties. In vitro release and ex vivo permeation and retention confirm the controlled release property of the system, and that resveratrol is retained in epidermis and dermis, but is also permeated through the skin. All formulations are biocompatible with L929 cells. The in vivo assay confirms that systems with AF lead to a higher anti-inflammatory effect of resveratrol. These results confirm the hypothesis that the incorporation of AF in the LCM increases the bio-adhesiveness and efficiency of the system for topical treatment, and consequently, the therapeutical action of the encapsulated drug.
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Affiliation(s)
| | - Camila Fernanda Rodero
- Department of Drugs and MedicineSchool of Pharmaceutical SciencesSão Paulo State UniversityAraraquaraSão Paulo14800‐903Brazil
| | | | - Marlus Chorilli
- Department of Drugs and MedicineSchool of Pharmaceutical SciencesSão Paulo State UniversityAraraquaraSão Paulo14800‐903Brazil
| | - Raffaele Mezzenga
- Department of Health Sciences & TechnologyETH ZurichZurich8092Switzerland
- Department of MaterialsETH ZurichZurich8093Switzerland
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5
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de Araujo GRS, Azevedo Lima OV, Barreto Neujahr JP, Matos SS, de Souza TA, Dos Santos AM, Chorilli M, de Souza Araujo AA, Duarte MC, da Cunha Gonsalves JKM, de Souza Nunes R, Dos Santos MRV, Vitorino Sarmento VH, Moreira Lira AA. Lyotropic liquid crystal mesophases as transdermal delivery systems for lipophilic drugs: A comparative study. Int J Pharm 2023; 636:122853. [PMID: 36931537 DOI: 10.1016/j.ijpharm.2023.122853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023]
Abstract
The present work aimed to evaluate different Liquid Crystal Mesophases (LCM) as transdermal drug delivery systems (TDDS) for nifedipine (NFD), a lipophilic drug model. The formulations composed of water, Citrus sinensis essential oil (CSEO), PPG-5-CETETH-20, and Olive oil ester PEG-7 were obtained and characterized by polarized light microscopy (PLM), rheology, small-angle x-ray scattering (SAXS), Fourier transform infrared coupled with an attenuated total reflection accessory (FTIR-ATR) and in vitro assays: bioadhesion, drug release, skin permeation, and retention tests. As a result, changes in component proportions led to several transparent viscous systems with an anisotropic profile. PLM and SAXS proved the presence of lamellar (S1), hexagonal (S3), and lamellar + hexagonal (S2) LCM, and rheology showed a high viscoelasticity profile. LCMs were able to adhere to the skin, and S2 achieved higher adhesion strength. NFD (5 mg/mL) has not modified the organization of LCMs. Results also showed that S3 promoted higher permeation and retention and higher disorganization of stratum corneum lipids, which is the main permeation-enhancing mechanism. Thus, the formulations obtained can carry and improve drug delivery through the skin and are promising TDDS for lipophilic drug administration, such as NFD.
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Affiliation(s)
| | | | | | - Saulo Santos Matos
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Thalisson Amorim de Souza
- Institute for Research in Pharmaceutical and Medications, Federal University of Paraíba, João Pessoa, PB, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, Paulista State University, Araraquara, SP, Brazil
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6
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Nair VV, Cabrera P, Ramírez-Lecaros C, Jara MO, Brayden DJ, Morales JO. Buccal delivery of small molecules and biologics: Of mucoadhesive polymers, films, and nanoparticles - An update. Int J Pharm 2023; 636:122789. [PMID: 36868332 DOI: 10.1016/j.ijpharm.2023.122789] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/08/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023]
Abstract
Buccal delivery of small and large molecules is an attractive route of administration that has been studied extensively over the past few decades. This route bypasses first-pass metabolism and can be used to deliver therapeutics directly to systemic circulation. Moreover, buccal films are efficient dosage forms for drug delivery due to their simplicity, portability, and patient comfort. Films have traditionally been formulated using conventional techniques, including hot-melt extrusion and solvent casting. However, newer methods are now being exploited to improve the delivery of small molecules and biologics. This review discusses recent advances in buccal film manufacturing, using the latest technologies, such as 2D and 3D printing, electrospraying, and electrospinning. This review also focuses on the excipients used in the preparation of these films, with emphasis on mucoadhesive polymers and plasticizers. Along with advances in manufacturing technology, newer analytical tools have also been used for the assessment of permeation of the active agents across the buccal mucosa, the most critical biological barrier and limiting factor of this route. Additionally, preclinical and clinical trial challenges are discussed, and some small molecule products already on the market are explored.
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Affiliation(s)
- Varsha V Nair
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Pablo Cabrera
- Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile; Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
| | | | - Miguel O Jara
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - David J Brayden
- UCD School of Veterinary Medicine and UCD Conway Institute, Belfield, Dublin D04 V1W8, Ireland
| | - Javier O Morales
- Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile; Center of New Drugs for Hypertension (CENDHY), Santiago 8380492, Chile; Drug Delivery Laboratory, Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380492, Chile.
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7
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Luiz MT, di Filippo LD, Dutra JAP, Viegas JSR, Silvestre ALP, Anselmi C, Duarte JL, Calixto GMF, Chorilli M. New Technological Approaches for Dental Caries Treatment: From Liquid Crystalline Systems to Nanocarriers. Pharmaceutics 2023; 15:pharmaceutics15030762. [PMID: 36986624 PMCID: PMC10054708 DOI: 10.3390/pharmaceutics15030762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Dental caries is the most common oral disease, with high prevalence rates in adolescents and low-income and lower-middle-income countries. This disease originates from acid production by bacteria, leading to demineralization of the dental enamel and the formation of cavities. The treatment of caries remains a global challenge and the development of effective drug delivery systems is a potential strategy. In this context, different drug delivery systems have been investigated to remove oral biofilms and remineralize dental enamel. For a successful application of these systems, it is necessary that they remain adhered to the surfaces of the teeth to allow enough time for the removal of biofilms and enamel remineralization, thus, the use of mucoadhesive systems is highly encouraged. Among the systems used for this purpose, liquid crystalline systems, polymer-based nanoparticles, lipid-based nanoparticles, and inorganic nanoparticles have demonstrated great potential for preventing and treating dental caries through their own antimicrobial and remineralization properties or through delivering drugs. Therefore, the present review addresses the main drug delivery systems investigated in the treatment and prevention of dental caries.
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Affiliation(s)
- Marcela Tavares Luiz
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | - Leonardo Delello di Filippo
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | | | | | | | - Caroline Anselmi
- School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-903, São Paulo, Brazil
| | - Jonatas Lobato Duarte
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
- Correspondence: ; Tel.: +55-16-3301-6998
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8
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Maher S, Smith LA, El-Khoury CA, Kalil H, Sossey-Alaoui K, Bayachou M. Inducible Nitric Oxide Synthase Embedded in Alginate/Polyethyleneimine Hydrogel as a New Platform to Explore NO-Driven Modulation of Biological Function. Molecules 2023; 28:1612. [PMID: 36838600 PMCID: PMC9963145 DOI: 10.3390/molecules28041612] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/18/2023] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
Nitric oxide (NO), a small free radical molecule, turned out to be pervasive in biology and was shown to have a substantial influence on a range of biological activities, including cell growth and apoptosis. This molecule is involved in signaling and affects a number of physiologic functions. In recent decades, several processes related to cancer, such as angiogenesis, programmed cell death, infiltration, cell cycle progression, and metastasis, have been linked with nitric oxide. In addition, other parallel work showed that NO also has the potential to operate as an anti-cancer agent. As a result, it has gained attention in cancer-related therapeutics. The nitric oxide synthase enzyme family (NOS) is required for the biosynthesis of nitric oxide. It is becoming increasingly popular to develop NO-releasing materials as strong tumoricidal therapies that can deliver sustained high concentrations of nitric oxide to tumor sites. In this paper, we developed NO-releasing materials based on sodium alginate hydrogel. In this regard, alginate hydrogel discs were modified by adsorbing layers of polyethyleneimine and iNOS-oxygenase. These NO-releasing hydrogel discs were prepared using the layer-by-layer film building technique. The iNOS-oxygenase is adsorbed on the positively charged polyethyleneimine (PEI) matrix layer, which was formed on a negatively charged sodium alginate hydrogel. We show that nitric oxide is produced by enzymes contained within the hydrogel material when it is exposed to a solution containing all the components necessary for the NOS reaction. The electrostatic chemical adsorption of the layer-by-layer process was confirmed by FTIR measurements as well as scanning electron microscopy. We then tested the biocompatibility of the resulting modified sodium alginate hydrogel discs. We showed that this NOS-PEI-modified hydrogel is overall compatible with cell growth. We characterized the NOS/hydrogel films and examined their functional features in terms of NO release profiles. However, during the first 24 h of activity, these films show an increase in NO release flux, followed by a gradual drop and then a period of stable NO release. These findings show the inherent potential of using this system as a platform for NO-driven modulation of biological functions, including carcinogenesis.
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Affiliation(s)
- Shaimaa Maher
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
| | - Lauren A. Smith
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
| | | | - Haitham Kalil
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
| | - Khalid Sossey-Alaoui
- Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Metro Health Medical Center, Cleveland, OH 44109, USA
| | - Mekki Bayachou
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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9
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Santos KP, Rodero CF, Ribeiro CM, Gremião MPD, Peccinini RG, Pavan FR, Pearce C, Gonzalez-Juarrero M, Chorilli M. Development of a Mucoadhesive Liquid Crystal System for the Administration of Rifampicin Applicable in Tuberculosis Therapy. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081138. [PMID: 36013317 PMCID: PMC9409883 DOI: 10.3390/life12081138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 12/03/2022]
Abstract
Since 1966, rifampicin (RIF) has been considered one of the most potent drugs in the treatment of tuberculosis (TB), which is caused by infection with M. tuberculosis (Mtb). New nanostructured formulations for RIF delivery and alternative routes of administration have been studied as potential forms of treatment. This study evaluates a liquid crystal system for RIF delivery, using alternative drug delivery routes. The systems developed are composed of surfactant, oleylamine, and soy phosphatidylcholine. With the aid of polarized light microscopy, it was possible to determine that the developed systems had a hexagonal mesophase. All systems developed showed non-Newtonian pseudoplasticity and a high degree of thixotropy. Liquid crystal systems with RIF showed an increase in elastic potential, indicating greater mu-coadhesiveness. The evaluation of mucoadhesive forces revealed an increase in the mucoadhesive potential in the presence of mucus, indicating the presence of satisfactory mucoadhesive forces. The 9DR and 10DR liquid crystal systems, when submitted to Differential Scanning Calorimetry analysis, remained structured even at temperatures above 100 °C, showing excellent stability. The developed liquid crystal systems showed a tolerable degree of cytotoxicity and bactericidal potential, for example, the 9DR system demonstrated a reduction in bacterial load after the third day and reached zero CFU on the seventh day of the test. The developed systems were also evaluated in the preclinical model of Mtb-infected mice, using the nasal, sublingual, and cutaneous route for the delivery of RIF associated with a nanostructured liquid crystal system as a possible tool in the treatment of TB.
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Affiliation(s)
- Kaio Pini Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.F.R.); (M.P.D.G.); (M.C.)
- Correspondence:
| | - Camila Fernanda Rodero
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.F.R.); (M.P.D.G.); (M.C.)
| | - Camila Maríngolo Ribeiro
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.M.R.); (R.G.P.); (F.R.P.)
| | - Maria P. D. Gremião
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.F.R.); (M.P.D.G.); (M.C.)
| | - Rosângela Gonçalves Peccinini
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.M.R.); (R.G.P.); (F.R.P.)
| | - Fernando Rogerio Pavan
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.M.R.); (R.G.P.); (F.R.P.)
| | - Camron Pearce
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO 80523, USA; (C.P.); (M.G.-J.)
| | - Mercedes Gonzalez-Juarrero
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO 80523, USA; (C.P.); (M.G.-J.)
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, Brazil; (C.F.R.); (M.P.D.G.); (M.C.)
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10
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Lv XF, Zhou DM, Sun XH, Zhao Z. Nano Sized Hydroxyapatite-Polylactic Acid-Vancomycin in Alleviation of Chronic Osteomyelitis. Drug Des Devel Ther 2022; 16:1983-1993. [PMID: 35783197 PMCID: PMC9249350 DOI: 10.2147/dddt.s356257] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 06/09/2022] [Indexed: 11/23/2022] Open
Abstract
Background Objective Methods Results Conclusion
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Affiliation(s)
- Xiao-Feng Lv
- Department of Trauma, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, People’s Republic of China
| | - Dong-Ming Zhou
- Department of Trauma, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, People’s Republic of China
- Correspondence: Dong-Ming Zhou,Department of Trauma, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, People’s Republic of China, Tel +86-13171243354, Email
| | - Xiao-Hong Sun
- Department of Trauma, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, People’s Republic of China
| | - Ze Zhao
- Department of Trauma, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region, 014010, People’s Republic of China
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11
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Mura P, Maestrelli F, Cirri M, Mennini N. Multiple Roles of Chitosan in Mucosal Drug Delivery: An Updated Review. Mar Drugs 2022; 20:335. [PMID: 35621986 PMCID: PMC9146108 DOI: 10.3390/md20050335] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 11/29/2022] Open
Abstract
Chitosan (CS) is a linear polysaccharide obtained by the deacetylation of chitin, which, after cellulose, is the second biopolymer most abundant in nature, being the primary component of the exoskeleton of crustaceans and insects. Since joining the pharmaceutical field, in the early 1990s, CS attracted great interest, which has constantly increased over the years, due to its several beneficial and favorable features, including large availability, biocompatibility, biodegradability, non-toxicity, simplicity of chemical modifications, mucoadhesion and permeation enhancer power, joined to its capability of forming films, hydrogels and micro- and nanoparticles. Moreover, its cationic character, which renders it unique among biodegradable polymers, is responsible for the ability of CS to strongly interact with different types of molecules and for its intrinsic antimicrobial, anti-inflammatory and hemostatic activities. However, its pH-dependent solubility and susceptibility to ions presence may represent serious drawbacks and require suitable strategies to be overcome. Presently, CS and its derivatives are widely investigated for a great variety of pharmaceutical applications, particularly in drug delivery. Among the alternative routes to overcome the problems related to the classic oral drug administration, the mucosal route is becoming the favorite non-invasive delivery pathway. This review aims to provide an updated overview of the applications of CS and its derivatives in novel formulations intended for different methods of mucosal drug delivery.
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Affiliation(s)
- Paola Mura
- Department of Chemistry, University of Florence, Via Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (F.M.); (M.C.); (N.M.)
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12
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Khoshnood N, Zamanian A. Development of novel alginate‐polyethyleneimine cell‐laden bioink designed for 3D bioprinting of cutaneous wound healing scaffolds. J Appl Polym Sci 2022. [DOI: 10.1002/app.52227] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Negin Khoshnood
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC) Tehran Iran
| | - Ali Zamanian
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC) Tehran Iran
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13
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do Prado AH, Duarte JL, Filippo LDD, Victorelli FD, de Abreu Fantini MC, Peccinini RG, Chorilli M. Bioadhesive liquid crystal systems for octyl methoxycinnamate skin delivery. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Incorporation of Ursolic Acid in Liquid Crystalline Systems Improves the Antifungal Activity Against Candida Sp. J Pharm Innov 2021. [DOI: 10.1007/s12247-020-09470-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Calixto GMF, Muniz BV, Castro SR, de Araujo JSM, de Souza Amorim K, Ribeiro LNM, Ferreira LEN, de Araújo DR, de Paula E, Franz-Montan M. Mucoadhesive, Thermoreversible Hydrogel, Containing Tetracaine-Loaded Nanostructured Lipid Carriers for Topical, Intranasal Needle-Free Anesthesia. Pharmaceutics 2021; 13:1760. [PMID: 34834175 PMCID: PMC8617820 DOI: 10.3390/pharmaceutics13111760] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 12/04/2022] Open
Abstract
Recent advances have been reported for needle-free local anesthesia in maxillary teeth by administering a nasal spray of tetracaine (TTC) and oxymetazoline, without causing pain, fear, and stress. This work aimed to assess whether a TTC-loaded hybrid system could reduce cytotoxicity, promote sustained permeation, and increase the anesthetic efficacy of TTC for safe, effective, painless, and prolonged analgesia of the maxillary teeth in dental procedures. The hybrid system based on TTC (4%) encapsulated in nanostructured lipid carriers (NLC) and incorporated into a thermoreversible hydrogel of poloxamer 407 (TTCNLC-HG4%) displayed desirable rheological, mechanical, and mucoadhesive properties for topical application in the nasal cavity. Compared to control formulations, the use of TTCNLC-HG4% slowed in vitro permeation of the anesthetic across the nasal mucosa, maintained cytotoxicity against neuroblastoma cells, and provided a three-fold increase in analgesia duration, as observed using the tail-flick test in mice. The results obtained here open up perspectives for future clinical evaluation of the thermoreversible hybrid hydrogel, which contains TTC-loaded NLC, with the aim of creating an effective, topical, intranasal, needle-free anesthesia for use in dentistry.
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Affiliation(s)
- Giovana Maria Fioramonti Calixto
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Bruno Vilela Muniz
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Simone R. Castro
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas-UNICAMP, Campinas 13083-872, Brazil; (S.R.C.); (E.d.P.)
| | - Jaiza Samara Macena de Araujo
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Klinger de Souza Amorim
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
| | - Lígia N. M. Ribeiro
- Institute of Biotechnology, Federal University of Uberlandia-UFU, Uberlandia 38405-302, Brazil;
| | | | | | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas-UNICAMP, Campinas 13083-872, Brazil; (S.R.C.); (E.d.P.)
| | - Michelle Franz-Montan
- Department of Biosciences, Piracicaba Dental School, University of Campinas-UNICAMP, Piracicaba 13414-903, Brazil; (G.M.F.C.); (B.V.M.); (J.S.M.d.A.); (K.d.S.A.)
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16
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Reina BD, Santezi Neto C, Garcia PPNS, Chorilli M, Calixto GMF, Dovigo LN. Bioadhesive Curcumin-Mediated Photodynamic Inactivation and Its Potential to Cause Undesirable Effects on Dental and Restorative Surfaces. Pharmaceutics 2021; 13:pharmaceutics13091458. [PMID: 34575534 PMCID: PMC8468794 DOI: 10.3390/pharmaceutics13091458] [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: 07/02/2021] [Revised: 08/26/2021] [Accepted: 09/07/2021] [Indexed: 11/25/2022] Open
Abstract
Curcumin-mediated Photodynamic Inactivation (PDI) has shown great potential to disinfect specific sites on tooth enamel but may involve contact with restorative materials. Thus, before use in dentistry, it is necessary to investigate whether the PDI protocol causes undesirable changes in the surfaces of aesthetic restorative materials and dental enamel. This study investigated the effect of PDI mediated by curcumin (CUR) in a liquid crystal precursor system on color stability (ΔE), surface roughness (Ra), and microhardness (kgf) of three different composite resins and bovine dental enamel specimens. The microhardness and roughness readings were performed 60 days after the treatments while the color readings were performed immediately, 24, 48, and 72 h, 7, 14, 21, 30, and 60 days after the treatments. Results showed that CUR mediated-PDI does not seem to have the potential to promote any esthetic or mechanical changes to the surface of tooth enamel and can be applied safely in clinical practice. However, the results on color, roughness, and hardness obtained for composite resins show that some negative effects can be produced, depending on the type of restorative material; more experiments must be performed with different formulations and, perhaps, with lower concentrations of CUR.
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Affiliation(s)
- Bárbara Donadon Reina
- Department of Social Dentistry, School of Dentistry, São Paulo State University (UNESP), Rua Humaitá 1680, Araraquara SP 14801-903, Brazil; (B.D.R.); (P.P.N.S.G.)
| | - Carolina Santezi Neto
- Independent Researcher, the Moment of the Submission (Unaffiliated Researcher), São Carlos SP 14801-903, Brazil;
| | - Patrícia Petromilli Nordi Sasso Garcia
- Department of Social Dentistry, School of Dentistry, São Paulo State University (UNESP), Rua Humaitá 1680, Araraquara SP 14801-903, Brazil; (B.D.R.); (P.P.N.S.G.)
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmacy, São Paulo State University (UNESP), Rodovia Araraquara-Jaú, Km. 1, Araraquara SP 14800-903, Brazil;
| | - Giovana Maria Fioramonti Calixto
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Avenida Limeira, Piracicaba SP 13414-903, Brazil;
| | - Lívia Nordi Dovigo
- Department of Social Dentistry, School of Dentistry, São Paulo State University (UNESP), Rua Humaitá 1680, Araraquara SP 14801-903, Brazil; (B.D.R.); (P.P.N.S.G.)
- Correspondence:
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Bera H, Abosheasha MA, Ito Y, Ueda M. Etherified pullulan-polyethylenimine based nanoscaffolds improved chemosensitivity of erlotinib on hypoxic cancer cells. Carbohydr Polym 2021; 271:118441. [PMID: 34364579 DOI: 10.1016/j.carbpol.2021.118441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/18/2021] [Accepted: 07/12/2021] [Indexed: 12/21/2022]
Abstract
The current research endeavor aimed to accomplish hypoxia-responsive polyethyleneimine-conjugated carboxymethyl pullulan-based co-polymer (CMP-HA-NI-PEI-NBA) bearing nitroaromatic subunits to efficiently deliver erlotinib (ERL) to reverse its hypoxia-induced resistance in cancer cells. As compared to a control co-polymer (CMP-HA-MI-PEI-BA) devoid of hypoxia-sensitive moieties, this scaffold demonstrated a hypochromic shift in the UV spectra and rapid dismantling of its self-assembled architecture upon exposure to simulated hypoxic condition. The hypoxia-responsive co-polymer encapsulated ERL with desirable loading capacity (DEE, 63.05 ± 2.59%), causing attenuated drug crystallinity. The drug release rate of the scaffold under reducing condition was faster relative to that of non-reducing environment. Their cellular uptake occurred through an energy-dependent endocytic process, which could exploit its caveolae/lipid raft-mediated internalization pathway. The ERL-loaded scaffolds more efficiently induced apoptosis and suppressed the proliferation of drug-resistant hypoxic HeLa cells than the pristine ERL. Hence, this study presented a promising drug delivery nanoplatform to overcome hypoxia-evoked ERL resistance.
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Affiliation(s)
- Hriday Bera
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Mohammed A Abosheasha
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan; Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Motoki Ueda
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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18
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Santezi C, Reina BD, de Annunzio SR, Calixto G, Chorilli M, Dovigo LN. Photodynamic potential of curcumin in bioadhesive formulations: Optical characteristics and antimicrobial effect against biofilms. Photodiagnosis Photodyn Ther 2021; 35:102416. [PMID: 34197966 DOI: 10.1016/j.pdpdt.2021.102416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/01/2021] [Accepted: 06/22/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Although Curcumin (CUR) has great potential as a photosensitizer, the low solubility in water impairs its clinical performance in photodynamic inactivation (PDI). This study sought to establish an effective antimicrobial protocol for PDI using CUR in three different bioadhesive formulations. METHODS A CUR-loaded chitosan hydrogel with a poloxamer (CUR-CHIH), a CUR-loaded liquid crystal precursor system (CUR-LCP), a CUR-loaded microemulsion (CUR-ME), and CUR in dimethylsulfoxide (DMSO) solution (CUR-S; control formulation) were tested against in vitro and in situ oral biofilms. The optical properties of each formulation were evaluated. RESULTS All of the formulations exhibited lower absorbance than CUR-S; however, the CUR-LCP curve bore the highest resemblance. The CUR present in all formulations was completely degraded after 15 min of illumination. In vitro experiments showed that CUR-S was the only formulation able to significantly reduce biofilm viability of Candida albicans and Lactobacillus casei when compared to the negative control (no PDI); the amount of reduction obtained was 1.8 and 3.7 log (CFU/mL) for C. albicans and L. casei, respectively. There was a significant reduction on the viability of Streptococcus mutans biofilms when CUR-S and CUR-LCP were applied (approximately 3.5 and 1.6 log [CFU/mL], respectively). In situ testing showed antimicrobial efficacy against S. mutans and general microorganisms. CONCLUSIONS Although the evaluated protocols has not been effective to all of the evaluated microorganisms, PDI showed potential against dental biofilms and evidence that the phototoxic effects of CUR have a high relation with the type of formulation in which it is loaded.
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Affiliation(s)
- Carolina Santezi
- Independent researcher at the moment of the submission (unaffiliated researcher)
| | - Bárbara Donadon Reina
- Department of Social Dentistry, School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Sarah Raquel de Annunzio
- Department of Clinical Analysis, School of Pharmacy, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Giovana Calixto
- Department of Biosciences, Piracicaba Dental School, UNICAMP, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Marlus Chorilli
- Department of Drugs and Pharmaceutics, School of Pharmacy, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Lívia Nordi Dovigo
- Department of Social Dentistry, School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil.
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Baveloni FG, Riccio BVF, Di Filippo LD, Fernandes MA, Meneguin AB, Chorilli M. Nanotechnology-based Drug Delivery Systems as Potential for Skin Application: A Review. Curr Med Chem 2021; 28:3216-3248. [PMID: 32867631 DOI: 10.2174/0929867327666200831125656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 11/22/2022]
Abstract
Administration of substances through the skin represents a promising alternative, in relation to other drug administration routes, due to its large body surface area, in order to offer ideal and multiple sites for drug administration. In addition, the administration of drugs through the skin avoids the first-pass metabolism, allowing an increase in the bioavailability of drugs, as well as reducing their side effects. However, the stratum corneum (SC) comprises the main barrier of protection against external agents, mainly due to its structure, composition and physicochemical properties, becoming the main limitation for the administration of substances through the skin. In view of the above, pharmaceutical technology has allowed the development of multiple drug delivery systems (DDS), which include liquid crystals (LC), cubosomes, liposomes, polymeric nanoparticles (PNP), nanoemulsions (NE), as well as cyclodextrins (CD) and dendrimers (DND). It appears that the DDS circumvents the problems of drug absorption through the SC layer of the skin, ensuring the release of the drug, as well as optimizing the therapeutic effect locally. This review aims to highlight the DDS that include LC, cubosomes, lipid systems, PNP, as well as CD and DND, to optimize topical skin therapies.
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Affiliation(s)
- Franciele Garcia Baveloni
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
| | - Bruno Vincenzo Fiod Riccio
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
| | - Leonardo Delello Di Filippo
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
| | - Mariza Aires Fernandes
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
| | - Andréia Bagliotti Meneguin
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, Sao Paulo State University, Rodovia Araraquara-Jau, km 01, Araraquara, SP, CEP 14800-903, Brazil
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Calixto GMF, Victorelli FD, Franz-Montan M, Baltazar F, Chorilli M. Innovative Mucoadhesive Precursor of Liquid Crystalline System Loading Anti-Gellatinolytic Peptide for Topical Treatment of Oral Cancer. J Biomed Nanotechnol 2021; 17:253-262. [PMID: 33785096 DOI: 10.1166/jbn.2021.3025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Current researches report an actual benefit of a treatment for oral cancer via inhibition of proteolytic matrix metallopro-teinases (MPP) with a peptide drug, called CTT1. However, peptides present poor oral bioavailability. Topical administration on oral mucosa avoids its passage through the gastrointestinal tract and the first-pass liver metabolism, but the barrier function of the oral mucosa can impair the permeation and retention of CTT1. The objective of this study is to incorporate CTT1 into a mucoadhesive precursor of liquid crystalline system (PLCS) as an interesting strategy for the topical treatment of oral cancer. PLCS consisting of oleic acid, ethoxylated 20 and propoxylated cetyl alcohol 5, polyethyleneimine (P)-associated chitosan (C) dispersion and CTT1 (FPC-CTT1) was developed and characterized by polarized light microscopy (PLM) and small-angle X-ray scattering (SAXS). In vitro permeation and retention across esophageal mucosa, In vitro cytotoxicity towards tongue squamous cell carcinoma cells, and in vivo evaluation of vascular changes using the chick embryo chorioallantoic membrane (CAM) model were performed. PLM and SAXS showed that FPC-CTT1acted as PLCS, because it formed a lamellar liquid crystalline system after the addition of artificial saliva. FPC-CTT1increased approximately 2-fold the flux of permeation and 3-fold the retention of CTT1 on the porcine esophageal mucosa. CTT1 does not affect cell viability. CAM tests showed that FPC preserved the blood vessels and it can be a safe formulation. These findings encourage the use of the FPC-CTT1 for topical treatment of oral cancer.
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Affiliation(s)
| | - Francesca Damiani Victorelli
- UNESP, São Paulo State University, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, 14800-903, Brazil
| | - Michelle Franz-Montan
- UNICAMP, University of Campinas, Piracicaba Dental School Department of Biosciences, Piracicaba, SP, 13414-903, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, 4710-057, Portugal
| | - Marlus Chorilli
- UNESP, São Paulo State University, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, 14800-903, Brazil
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Trevizan LNF, Eloy JO, Luiz MT, Petrilli R, Junior SLR, Borges JC, Marchetti JM, Chorilli M. Anti-EGFR liquid crystalline nanodispersions for docetaxel delivery: Formulation, characterization and cytotoxicity in cancer cells. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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de Araújo PR, Calixto GMF, Araújo VHS, Sato MR, Rodero CF, Oshiro-Junior JA, Bauab TM, Chorilli M. In vivo study of hypericin-loaded poloxamer-based mucoadhesive in situ gelling liquid crystalline precursor system in a mice model of vulvovaginal candidiasis. Med Mycol 2021; 59:821-827. [PMID: 33626136 DOI: 10.1093/mmy/myab006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/07/2021] [Accepted: 02/17/2021] [Indexed: 01/03/2023] Open
Abstract
The present study reports the performance of the pigment hypericin (HYP)-loaded poloxamer-based mucoadhesive in situ gelling liquid crystalline precursor system (LCPS) for the treatment of vulvovaginal candidiasis (VVC) in mice. LCPS composed of 40% of ethoxylated and propoxylated cetyl alcohol, 30% of oleic acid and cholesterol (7:1), 30% of a dispersion of 16% poloxamer 407 and 0.05% of HYP (HYP-LCPS) was prepared and characterized by polarized light microscopy (PLM), small-angle X-ray scattering (SAXS) and ex vivo permeation and retention studies across vaginal porcine mucosa were performed. In addition, the antifungal properties of the HYP-LCPS were evaluated in a murine in vivo model; for this, infected C57BL female mice groups were treated with both HYP in solution and HYP-LCPS, and after 6 days colony forming unit (CFU)/ml count was performed. PLM and SAXS confirmed that HYP-LCPS is a microemulsion situated in boundary transition region confirming its action as an LCPS. When in contact with simulated vaginal fluid, HYP-LCPS became rigid and exhibited maltase crosses and bragg peaks characteristics of lamellar phase. Ex vivo permeation and retention studies showed that HYP-LCPS provides a localized treatment on the superficial layers of porcine vaginal mucosa. HYP-LCPS induced a significant reduction in the number of CFU/ml in the mice; thus this formulation indicated it is as effective as a commercial dosage form. It was concluded that LCPS maintains the biological activity of HYP and provides an adequate drug delivery system for this lipophilic molecule at the vaginal mucosa, being a promising option in cases of VVC.
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Affiliation(s)
- Patricia Rocha de Araújo
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
| | - Giovana Maria Fioramonti Calixto
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil.,Department of Biosciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, São Paulo, 13414-903, Brazil
| | - Victor Hugo Sousa Araújo
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
| | - Mariana Rillo Sato
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
| | - Camila Fernanda Rodero
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
| | | | - Taís Maria Bauab
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, 14800-903, Araraquara, São Paulo, Brazil
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Khoshnood N, Zamanian A, Abbasi M. The potential impact of polyethylenimine on biological behavior of 3D-printed alginate scaffolds. Int J Biol Macromol 2021; 178:19-28. [PMID: 33636258 DOI: 10.1016/j.ijbiomac.2021.02.152] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/17/2022]
Abstract
Three-dimensional (3D) printing using biocompatible materials is a novel technology having a great potential for fabricating precise 3D scaffolds for tissue engineering. Alginate hydrogel undergoes unstable swelling and degradation properties as well as suffers from poor cell adhesion due to the lack of cell binding domains. These limit its applications in tissue engineering. In this study, 3D-printed alginate scaffolds were coated by branch polyethylenimine (PEI) to overcome the limitation of alginate because the branch PEI is a cationic polymer with a large number of active N-H groups. The results indicated that surface modification of 3D-printed alginate scaffolds using an appropriate concentration of PEI potentially promoted the fibroblast cells functions in 3D-printed alginate scaffolds, increased cell adhesion, cell proliferation and cell spreading through providing a large amount of N-H groups and increasing hydrophilicity of the surface. The degradation rate of alginate was degraded by interaction between N-H groups in PEI and -COO- groups in alginate structure and followed by the formation strong barrier layer in the interface of alginate and PEI. Therefore, ALG-PEI scaffolds can be a good candidate for tissue engineering and wound dressing applications.
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Affiliation(s)
- Negin Khoshnood
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC), Tehran, Iran
| | - Ali Zamanian
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department Materials and Energy Research Center (MERC), Tehran, Iran.
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24
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Silvestre ALP, Di Filippo LD, Besegato JF, de Annunzio SR, Almeida Furquim de Camargo B, de Melo PBG, Rastelli ANDS, Fontana CR, Chorilli M. Current applications of drug delivery nanosystems associated with antimicrobial photodynamic therapy for oral infections. Int J Pharm 2021; 592:120078. [DOI: 10.1016/j.ijpharm.2020.120078] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/26/2020] [Accepted: 11/08/2020] [Indexed: 12/26/2022]
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25
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Oyafuso MH, Fonseca-Santos B, Kogawa AC, Carvalho FC, Gremião MPD, Chorilli M. Determination of dexamethasone acetate in CETETH 20-based in liquid crystalline systems using HPLC. Biomed Chromatogr 2020; 35:e5054. [PMID: 33314174 DOI: 10.1002/bmc.5054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/27/2020] [Accepted: 12/10/2020] [Indexed: 11/06/2022]
Abstract
Dexamethasone acetate (DEX), a potent anti-inflammatory, is used primarily in the treatment of inflammatory and autoimmune diseases. It was incorporated in CETETH 20 (polyoxyethylene 20 cetyl alcohol)-based liquid crystalline systems to enhance the purpose of the drug. Concomitant with the pharmaceutical technology performed, a HPLC method was developed and validated for the quantification of dexamethasone acetate in CETETH 20-based liquid crystalline systems for the evaluation of the drug in the new matrix. The method was performed using a C18 column with acetonitrile:methanol:water (35:35:30, v/v/v) as the mobile phase at a flow rate of 0.8 mL min-1 at 239 nm. The method was linear in the range of 1-25 μg mL-1 ; the limit of quantification and limit of detection were 0.05 and 0.16 μg mL-1 , respectively; the accuracy of the method was 99.92% (relative standard deviation < 1%), and it presented intra-day and inter-day precision with deviations less than 1%. In this context, the method was successfully used to determine the incorporation efficiency of DEX in CETETH 20-based liquid crystalline systems and can be easily used by pharmaceutical companies and laboratories around the world.
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Affiliation(s)
- Márcia Helena Oyafuso
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Bruno Fonseca-Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Ana Carolina Kogawa
- Laboratório de Controle de Qualidade, Faculdade de Farmácia, Universidade Federal de Goiás-UFG, Goiânia, Goiás, Brazil
| | - Flávia Chiva Carvalho
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Maria Palmira Daflon Gremião
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
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26
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Duarte JL, Taira TC, Di Filippo LD, Fonseca-Santos B, Pinto MC, Chorilli M. Novel bioadhesive polycarbophil-based liquid crystal systems containing Melaleuca alternifolia oil as potential repellents against Aedes aegypti. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Ma J, Mo W, Zhang P, Lai Y, Li X, Zhang D. Constituent diversity of ethanol extracts from pitaya. ASIA-PAC J CHEM ENG 2020. [DOI: 10.1002/apj.2478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jinghua Ma
- College of Forestry Henan Agricultural University Zhengzhou China
| | - Wei Mo
- College of Forestry Central South University of Forestry and Technology Changsha China
| | - Pangpan Zhang
- College of Forestry Henan Agricultural University Zhengzhou China
| | - Yong Lai
- College of Forestry Henan Agricultural University Zhengzhou China
| | - Ximei Li
- College of Forestry Henan Agricultural University Zhengzhou China
| | - Dangquan Zhang
- College of Forestry Henan Agricultural University Zhengzhou China
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28
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Victorelli FD, Cardoso VMDO, Ferreira NN, Calixto GMF, Fontana CR, Baltazar F, Gremião MPD, Chorilli M. Chick embryo chorioallantoic membrane as a suitable in vivo model to evaluate drug delivery systems for cancer treatment: A review. Eur J Pharm Biopharm 2020; 153:273-284. [DOI: 10.1016/j.ejpb.2020.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/24/2022]
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29
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Francisconi RS, Maquera-Huacho PM, Tonon CC, Calixto GMF, de Cássia Orlandi Sardi J, Chorilli M, Spolidorio DMP. Terpinen-4-ol and nystatin co-loaded precursor of liquid crystalline system for topical treatment of oral candidiasis. Sci Rep 2020; 10:12984. [PMID: 32737401 PMCID: PMC7395782 DOI: 10.1038/s41598-020-70085-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 07/08/2020] [Indexed: 11/09/2022] Open
Abstract
This study was performed to develop a liquid crystalline system (LCS) incorporated with terpinen-4-ol and nystatin to evaluate its antifungal, antibiofilm, and synergistic/modulatory activity against Candida albicans. The LCS was composed of a dispersion containing 40% propoxylated and ethoxylated cetyl alcohol, 40% oleic acid, and 0.5% chitosan dispersion. According to analysis by polarized light microscopy, rheology, and mucoadhesion studies, the incorporation of 100% artificial saliva increased the pseudoplasticity, consistency index, viscosity, and mucoadhesion of the formulation. The minimum inhibitory concentration, minimum fungicidal concentration, and rate of biofilm development were used to evaluate antifungal activity; the LCS containing terpinen-4-ol and nystatin effectively inhibited C. albicans growth at a lower concentration, displaying a synergistic action. Therefore, LCS incorporated with terpinen-4-ol and nystatin is a promising alternative for preventing and treating infections and shows potential for the development of therapeutic strategies against candidiasis.
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Affiliation(s)
- Renata Serignoli Francisconi
- Department of Physiology and Pathology, School of Dentistry of Araraquara, Universidade Estadual Paulista, UNESP, Araraquara, SP, Brazil
| | - Patricia Milagros Maquera-Huacho
- Department of Physiology and Pathology, School of Dentistry of Araraquara, Universidade Estadual Paulista, UNESP, Araraquara, SP, Brazil
| | - Caroline Coradi Tonon
- Department of Physiology and Pathology, School of Dentistry of Araraquara, Universidade Estadual Paulista, UNESP, Araraquara, SP, Brazil
| | | | | | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical of Araraquara, UNESP, Araraquara, SP, Brazil
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Yu X, Gao YC, Li HW, Wu Y. Fluorescent Properties of Morin in Aqueous Solution: A Conversion from Aggregation Causing Quenching (ACQ) to Aggregation Induced Emission Enhancement (AIEE) by Polyethyleneimine Assembly. Macromol Rapid Commun 2020; 41:e2000198. [PMID: 32529702 DOI: 10.1002/marc.202000198] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/30/2020] [Indexed: 12/11/2022]
Abstract
Unlike normal conversion from aggregation caused quenching (ACQ) to aggregation induced emission enhancement (AIEE) by introducing aromatic rotors tuning aggregation modes, in this study, it is achieved through a supramolecular assembly with polymer. Thus, it provides an easy approach for the inhibition of unwanted H-aggregation between luminogens. As a kind of flavonoid, morin has shown great potential in therapeutics. However, its poor solubility and weak emission in aqueous solution greatly limit its bioapplications. When morin is dissolved in aqueous solution, the presence of 30 × 10-6 m polyethyleneimine (PEI) induces significant emission enhancement and bathochromic shift. Consequently, the quantum yield (QY) of 24.5% is either achieved by assembling with PEI, versus 0.76% of its ACQ state composed of H-aggregation in aqueous solution. Particularly, the in-depth mechanism studies reveal that it is the assembly with PEI that disassociates the H-aggregation in aqueous solution and further restricts the stretching and/or rotation of morin, which eventually reduce the nonradiative decays and enhance the emission. Therefore, the present study reports a unique phenomenon of AIEE effects on morin. Particularly the in-depth investigation on intrinsic mechanisms will highlight and greatly expand the development of more luminogens from traditional Chinese herbals.
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Affiliation(s)
- Xu Yu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yan-Cai Gao
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Hong-Wei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yuqing Wu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
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31
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Nouri A, Jelkmann M, Khoee S, Bernkop-Schnürch A. Diaminated Starch: A Competitor of Chitosan with Highly Mucoadhesive Properties due to Increased Local Cationic Charge Density. Biomacromolecules 2020; 21:999-1008. [PMID: 31940199 PMCID: PMC7205387 DOI: 10.1021/acs.biomac.9b01665] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The purpose of this study was to synthesize diaminated starch as a novel mucoadhesive polymer. Starch was tosylated and then reacted with ethylenediamine. The degree of amination was determined by 2,4,6-trinitrobenzene sulfonic acid assay. Properties of diaminated starch including solubility, cytotoxicity, swelling behavior, and mucoadhesion were compared to chitosan. Diaminated starch displayed 2083 ± 121.6 μmol of diamine substructures/g of polymer. At pH 6, diaminated starch exhibited a ζ potential of 6 mV, whereas it was close to zero in the case of unmodified starch. In addition, diaminated starch displayed water solubility over the entire pH range and minor cytotoxicity. The novel polymer showed pronounced swelling behavior in water increasing its initial weight 18- and 6-fold at pH 5 and 6, respectively. Moreover, diaminated starch exhibited 92-fold higher-mucoadhesivity properties than those of chitosan. According to these results, diaminated starch might be a promising novel excipient for the design of mucoadhesive formulations.
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Affiliation(s)
- Akram Nouri
- Polymer Laboratory, Chemistry Department, School of Science , University of Tehran , P.O. Box 14, 155-6455 Tehran , Iran
| | - Max Jelkmann
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
| | - Sepideh Khoee
- Polymer Laboratory, Chemistry Department, School of Science , University of Tehran , P.O. Box 14, 155-6455 Tehran , Iran
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy , University of Innsbruck , Innrain 80/82 , 6020 Innsbruck , Austria
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32
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Calixto GMF, de Annunzio SR, Victorelli FD, Frade ML, Ferreira PS, Chorilli M, Fontana CR. Chitosan-Based Drug Delivery Systems for Optimization of Photodynamic Therapy: a Review. AAPS PharmSciTech 2019; 20:253. [PMID: 31309346 DOI: 10.1208/s12249-019-1407-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/26/2019] [Indexed: 02/08/2023] Open
Abstract
Drug delivery systems (DDS) can be designed to enrich the pharmacological and therapeutic properties of several drugs. Many of the initial obstacles that impeded the clinical applications of conventional DDS have been overcome with nanotechnology-based DDS, especially those formed by chitosan (CS). CS is a linear polysaccharide obtained by the deacetylation of chitin, which has potential properties such as biocompatibility, hydrophilicity, biodegradability, non-toxicity, high bioavailability, simplicity of modification, aqueous solubility, and excellent chemical resistance. Furthermore, CS can prepare several DDS as films, gels, nanoparticles, and microparticles to improve delivery of drugs, such as photosensitizers (PS). Thus, CS-based DDS are broadly investigated for photodynamic therapy (PDT) of cancer and fungal and bacterial diseases. In PDT, a PS is activated by light of a specific wavelength, which provokes selective damage to the target tissue and its surrounding vasculature, but most PS have low water solubility and cutaneous photosensitivity impairing the clinical use of PDT. Based on this, the application of nanotechnology using chitosan-based DDS in PDT may offer great possibilities in the treatment of diseases. Therefore, this review presents numerous applications of chitosan-based DDS in order to improve the PDT for cancer and fungal and bacterial diseases.
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33
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de Araújo PR, Calixto GMF, da Silva IC, de Paula Zago LH, Oshiro Junior JA, Pavan FR, Ribeiro AO, Fontana CR, Chorilli M. Mucoadhesive In Situ Gelling Liquid Crystalline Precursor System to Improve the Vaginal Administration of Drugs. AAPS PharmSciTech 2019; 20:225. [PMID: 31214798 DOI: 10.1208/s12249-019-1439-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/29/2019] [Indexed: 12/28/2022] Open
Abstract
The vaginal mucosa is a very promising route for drug administration due to its high permeability and the possibility to bypass first pass metabolism; however, current vaginal dosage forms present low retention times due to their dilution in vaginal fluids, which hampers the efficacy of many pharmacological treatments. In order to overcome these problems, this study proposes to develop a mucoadhesive in situ gelling liquid crystalline precursor system composed of 30% of oleic acid and cholesterol (7:1), 40% of ethoxylated and propoxylated cetyl alcohol, and 30% of a dispersion of 16% Poloxamer 407. The effect of the dilution with simulated vaginal fluid (SVF) on this system was evaluated by polarized light microscopy (PLM), small-angle X-ray scattering (SAXS), rheological studies, texture profile analysis (TPA), mucoadhesion study, in vitro drug release test using hypericin (HYP) as drug model, and cytotoxicity assay. PLM and SAXS confirmed the formation of an isotropic system. After the addition of three different concentrations of SVF (30, 50, and 100%), the resultant formulations presented anisotropy and characteristics of viscous lamellar phases. Rheology shows that formulations with SVF behaved as a non-Newtonian fluid with suitable shear thinning for vaginal application. TPA and mucoadhesion assays indicated the formation of long-range ordered systems as the amount of SVF increases which may assist in the fixation of the formulation on the vaginal mucosa. The formulations were able to control about 75% of the released HYP demonstrating a sustained release profile. Finally, all formulations acted as safe vaginal drug delivery systems.
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