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França AP, Silva TA, Schulz D, Gomes-Pereira L, Cunha LMA, Gonçalves MP, Vieira JVS, Sanches MP, Koehler N, Maluf S, Poli A, da Silva-Santos JE, Assreuy J, Lemos-Senna E. Pharmacokinetics, biodistribution, and in vivo toxicity of 7-nitroindazole loaded in pegylated and non-pegylated nanoemulsions in rats. Eur J Pharm Sci 2024; 194:106695. [PMID: 38191063 DOI: 10.1016/j.ejps.2024.106695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/15/2023] [Accepted: 01/06/2024] [Indexed: 01/10/2024]
Abstract
Sepsis is a life-threatening condition caused by a dysregulated host response to infection. The development of sepsis is associated with excessive nitric oxide (NO) production, which plays an important role in controlling vascular homeostasis. 7-nitroindazole (7-NI) is a selective inhibitor of neuronal nitric oxide synthase (NOS-1) with potential application for treating NO imbalance conditions. However, 7-NI exhibits a low aqueous solubility and a short plasma half-life. To circumvent these biopharmaceutical limitations, pegylated (NEPEG7NI) and non-pegylated nanoemulsions (NENPEG7NI) containing 7-NI were developed. This study evaluates the pharmacokinetic profiles and toxicological properties of 7-NI loaded into the nanoemulsions. After a single intravenous administration of the free drug and the nanoemulsions at a dose of 10 mg.kg-1 in Wistar rats, 7-NI was widely distributed in the organs. The pharmacokinetic parameters of Cmax, t1/2, and AUC0-t were significantly increased after administration of the NEPEG7NI, compared to both free 7-NI and NENPEG7NI (p < 0.05). No observable adverse effects were observed after administering the free 7-NI, NEPEG7NI, or NENPEG7NI in the animals after a single dose of up to 3.0 mg.kg-1. The results indicated that 7-NI-loaded nanoemulsions are safe, constituting a promising approach to treating sepsis.
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Affiliation(s)
- Angela Patricia França
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Thais Alves Silva
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Daniela Schulz
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Leonardo Gomes-Pereira
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Livia Melo Arruda Cunha
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Merita Pereira Gonçalves
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - João Victor Soares Vieira
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Mariele Paludetto Sanches
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Natalia Koehler
- Citogenetics and Genomic Stability Laboratory, University Hospital Polydoro Ernani de São Thiago, Federal University of Santa Catarina, Florianopolis, SC, 88040-900, Brazil
| | - Sharbel Maluf
- Citogenetics and Genomic Stability Laboratory, University Hospital Polydoro Ernani de São Thiago, Federal University of Santa Catarina, Florianopolis, SC, 88040-900, Brazil
| | - Anicleto Poli
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - José Eduardo da Silva-Santos
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Jamil Assreuy
- Pharmacology Graduate Program, Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Elenara Lemos-Senna
- Pharmacy Graduate Program, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
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Abstract
This review gathers recent studies, patents, and clinical trials involving the nasal administration of peptide drugs to supply a panorama of developing nanomedicine advances in this field. Peptide drugs have been featured in the pharmaceutical market, due to their high efficacy, biological activity, and low immunogenicity. Pharmaceutical industries need technology to circumvent issues relating to peptide stability and bioavailability. The oral route offers very harsh and unfavourable conditions for peptide administration, while the parenteral route is inconvenient and risky for patients. Nasal administration is an attractive alternative, mainly when associated with nanotechnological approaches. Nanomedicines may improve the nasal administration of peptide drugs by providing protection for the macromolecules from enzymes while also increasing their time of retention and permeability in the nasal mucosa. Nanomedicines for nasal administration containing peptide drugs have been acclaimed for both prevention, and treatment, of infections, including the pandemic COVID-19, cancers, metabolic and neurodegenerative diseases.
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Affiliation(s)
- Carine Zuglianello
- Pharmaceutical Nanotechnology Post-Graduation Program, University of Santa Catarina, Florianópolis, Brazil
| | - Elenara Lemos-Senna
- Pharmaceutical Nanotechnology Post-Graduation Program, University of Santa Catarina, Florianópolis, Brazil
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Pinheiro Machado GT, Veleirinho MB, Ferreira RG, Zuglianello C, Lemos-Senna E, Kuhnen S. Protection of bovine mammary epithelial cells by a nanoemulsion of the medicinal herb Achyrocline satureioides (Lam.) DC and its capacity of permeation through mammary epithelium. J DAIRY RES 2022; 89:1-6. [PMID: 35225191 DOI: 10.1017/s0022029922000139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The low levels of toxicity and cytoprotective effect attributed to Achyrocline satureioides (Lam.) DC, a medicinal plant native to South America, are of interest for bovine mastitis therapy. This research paper reports the hypothesis that a nanoemulsion of macela extract (Achyrocline satureioides) exerts protective effects on bovine mammary alveolar cells -T (MAC-T) and increases the permeation of flavonoid compounds through mammary epithelium. Extract-loaded nanoemulsions (2.5 mg/ml) (NE-ML) (n = 4) were prepared using high-pressure homogenization with varying concentrations of flaxseed oil and Tween 80. Permeation and retention of free and nanoencapsulated quercetin, 3-O-methylquercetin and luteolin were performed on mammary glandular epithelium using Franz diffusion cells. The cell viability was evaluated on mammary epithelial cells (MAC-T lineage) using the MTT method (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) after exposure to loaded and blank nanoemulsions (NE-ML and NE-BL). Necrotic or apoptotic cell death was evaluated by flow cytometry after exposure to nanoemulsions (NE-ML and NE-BL). Subsequently, the cell death was assessed by previously treating MAC-T cells with NE-ML for 23 h, followed by exposure to H2O2 (2 mM) for 1 h. Higher permeation of quercetin and 3-O-methylquercetin in NE-ML was found compared to that of free extract with a final permeated amount of 50.7 ± 3.2 and 111.2 ± 0.6 μg/cm2 compared to 35.0 ± 0.6 and 48.9 ± 1.2, respectively. For NE-BL, the IC50 was at least 1.3% (v/v), while for the NE-ML, it was at least 2.6% (v/v). After exposure to NE-ML (5 and 1.2%, v/v), the percentage of apoptotic cells was reduced (±30%). For the H2O2 assay, the percentage of cells in necrosis was reduced by 40% after exposure to NE-ML1% (v/v) + H2O2 2 mM. The protective effects and increased permeation of macela nanoemulsion make this a promising new candidate for bovine mastitis therapy.
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Affiliation(s)
- Gabriela T Pinheiro Machado
- Biochemistry and Natural Products Laboratory (LABINAT), Federal University of Santa Catarina, Florianópolis88040-900, Brazil
| | - Maria B Veleirinho
- Biochemistry and Natural Products Laboratory (LABINAT), Federal University of Santa Catarina, Florianópolis88040-900, Brazil
| | - Roberto G Ferreira
- Biochemistry and Natural Products Laboratory (LABINAT), Federal University of Santa Catarina, Florianópolis88040-900, Brazil
| | - Carine Zuglianello
- Pharmaceutical Technology Laboratory, Federal University of Santa Catarina, Florianópolis88040-900, Brazil
| | - Elenara Lemos-Senna
- Pharmaceutical Technology Laboratory, Federal University of Santa Catarina, Florianópolis88040-900, Brazil
| | - Shirley Kuhnen
- Biochemistry and Natural Products Laboratory (LABINAT), Federal University of Santa Catarina, Florianópolis88040-900, Brazil
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Fröhlich JK, Meyer PA, Stein T, Tonussi CR, Lemos-Senna E. Development and in vivo evaluation of lipid-based nanocarriers containing Jatropha isabellei dry extract from the dichloromethane fraction intended for oral treatment of arthritic diseases. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Vieira MV, Derner RB, Lemos-Senna E. Preparation and characterization of Haematococcus pluvialis carotenoid-loaded PLGA nanocapsules in a gel system with antioxidant properties for topical application. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Zuglianello C, Chamorro A, de Oliveira V, Xavier Jr. F, Lemos-Senna E. Dextran Sulfate/Pramlintide Polyelectrolyte Nanoparticles as a Promising Delivery System: Optimization, Evaluation of Supramolecular Interactions and Effect on Conformational Stability of the Peptide Drug. J BRAZIL CHEM SOC 2021. [DOI: 10.21577/0103-5053.20210062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
In this study, we investigated the feasibility to obtain nanoparticles (NPs) by assembling pramlintide (Pram) with dextran sulfate (DexS), as a new approach for mucosal peptide delivery. DexS/Pram NPs were prepared by dropwise addition of a Pram solution to a DexS solution under magnetic stirring. The physicochemical characteristics of NPs and molecular interactions involved in the co-assembling were evaluated by dynamic light scattering (DLS), transmission electronic microscopy (TEM), isothermal titration microcalorimetry, Fourier-transform infrared spectroscopy (FTIR), fluorescence quenching, and circular dichroism (CD). DexS/Pram NPs displayed a narrow size distribution (ca. 200 nm), negative zeta potential (ca. −40 mV), association efficiency close to 100%, and nanogel behavior. The assembling with DexS increased the Pram α-helical content, stabilizing the peptide in its bioactive form. The colloidal stability of nanoparticles was dependent on the salt concentration and it could be assumed that peptide release from nanoparticles occurs by dissociation of the complex at physiological conditions.
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Vieira E, Lemos-Senna E. Application of a New Validated HPLC-PDA Method for Simultaneous Determination of Curcumin and Melatonin in Hyaluronic Acid-Coated Nanoemulsions. J BRAZIL CHEM SOC 2020. [DOI: 10.21577/0103-5053.20190205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Mogharbel BF, Francisco JC, Irioda AC, Dziedzic DSM, Ferreira PE, de Souza D, de Souza CMCO, Neto NB, Guarita-Souza LC, Franco CRC, Nakamura CV, Kaplum V, Mazzarino L, Lemos-Senna E, Borsali R, Soto PA, Setton-Avruj P, Abdelwahid E, de Carvalho KAT. Fluorescence properties of curcumin-loaded nanoparticles for cell tracking. Int J Nanomedicine 2018; 13:5823-5836. [PMID: 30319253 PMCID: PMC6168007 DOI: 10.2147/ijn.s171099] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Posttransplant cell tracking, via stem cell labeling, is a crucial strategy for monitoring and maximizing benefits of cell-based therapies. The structures and functionalities of polysaccharides, proteins, and lipids allow their utilization in nanotechnology systems. MATERIALS AND METHODS In the present study, we analyzed the potential benefit of curcumin-loaded nanoparticles (NPC) using Vero cells (in vitro) and NPC-labeled adipose-derived mesenchymal stem cells (NPC-ADMSCs) (in vivo) in myocardial infarction and sciatic nerve crush preclinical models. Thereafter, transplantation, histological examination, real time imaging, and assessment of tissue regeneration were done. RESULTS Transplanted NPC-ADMSCs were clearly identified and revealed potential benefit when used in cell tracking. CONCLUSION This approach may have broad applications in modeling labeled transplanted cells and in developing improved stem cell therapeutic strategies.
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Affiliation(s)
- Bassam Felipe Mogharbel
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Julio Cesar Francisco
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Ana Carolina Irioda
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Dilcele Silva Moreira Dziedzic
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Priscila Elias Ferreira
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Daiany de Souza
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Carolina Maria Costa Oliveira de Souza
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
| | - Nelson Bergonse Neto
- Institute of Biological and Health Sciences, Pontifical Catholic University of Paraná (PUCPR), Centro de Ciências Biológicas e da Saúde (CCBS), Curitiba, Brazil
| | - Luiz Cesar Guarita-Souza
- Institute of Biological and Health Sciences, Pontifical Catholic University of Paraná (PUCPR), Centro de Ciências Biológicas e da Saúde (CCBS), Curitiba, Brazil
| | | | - Celso Vataru Nakamura
- Department of Pharmaceutical Sciences, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Vanessa Kaplum
- Department of Pharmaceutical Sciences, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Letícia Mazzarino
- Department of Pharmaceutical Sciences, NanoBioMat Laboratory, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Elenara Lemos-Senna
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Redouane Borsali
- Centre de Recherches sur les Macromolécules Végétales (CERMAV), Centre National de la Recherche Scientifique (CNRS), University Grenoble Alpes, F-38000, Grenoble, France
| | - Paula A Soto
- Instituto de Química y Físicoquímica Biológica (IQUIFIB), Departament of Química Biológica, Facultad de Farmacia y Bíoquímica, Universidad de Buenos Aires (UBA) Consejo nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentine
| | - Patricia Setton-Avruj
- Instituto de Química y Físicoquímica Biológica (IQUIFIB), Departament of Química Biológica, Facultad de Farmacia y Bíoquímica, Universidad de Buenos Aires (UBA) Consejo nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentine
| | - Eltyeb Abdelwahid
- Feinberg School of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, Il, USA
| | - Katherine Athayde Teixeira de Carvalho
- Cell Therapy and Biotechnology in Regenerative Medicine Department, Pelé Pequeno Príncipe Institute, Child and Adolescent Health Research and Pequeno Príncipe Faculty, Curitiba, Paraná, Brazil,
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Barp CG, Mendes C, Lemos-Senna E, Assreuy J. 7-nitroindazol-loaded nanoemulsions: Preparation, characterization and its improved inhibitory effect on nitric oxide synthase-1. Nitric Oxide 2018; 76:129-135. [PMID: 28943472 DOI: 10.1016/j.niox.2017.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/28/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
Nitric oxide (NO) participates in several physiological processes such as maintenance of blood pressure, host defense, neurotransmission, inhibition of platelet aggregation and learning and memory. NO is also involved in several diseases or dysfunctions in the cardiovascular, central nervous and musculoskeletal systems. NO also has been shown to be a major player in sepsis. NOS-1-derived NO has been shown to be a relevant species in physiology but also is an important element in pathology. There exist some NOS-1 inhibitors and among of them, 7-nitroindazole has been used for its in vivo selectivity. However, 7-NI has a very short half-life (∼2 h) and a poor water solubility. In this study, we describe the preparation and characterization of 7-NI-loaded nanoemulsions (NE7-NI). The chemical stability of 7-NI was greatly increased and the drug release rate could be controlled after nanoemulsification. NE7-NI reduced NO production in a long-lasting manner in vascular smooth muscle cells and skeletal muscle, without cytotoxicity. Our results evidenced that nanoemulsification approach increases the effective action time of 7-NI, rendering a suitable dosage form, which may be an interesting tool to study the role of NOS-1 in physiology and disease.
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Affiliation(s)
- Clarissa Germano Barp
- Department of Pharmacology, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Cassiana Mendes
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Elenara Lemos-Senna
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
| | - Jamil Assreuy
- Department of Pharmacology, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
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Fröhlich JK, Stein T, da Silva LA, Biavatti MW, Tonussi CR, Lemos-Senna E. Antinociceptive and anti-inflammatory activities of the Jatropha isabellei dichloromethane fraction and isolation and quantitative determination of jatrophone by UFLC-DAD. Pharm Biol 2017; 55:1215-1222. [PMID: 28249559 PMCID: PMC6130469 DOI: 10.1080/13880209.2017.1295999] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 06/06/2023]
Abstract
CONTEXT Jatropha isabellei Müll. Arg. (Euphorbiaceae) has been used in the traditional medicine to treat arthritis. OBJECTIVE To evaluate the anti-inflammatory and antinociceptive activities of the dichloromethane fraction (DFJi) from underground parts of J. isabellei, and to develop an analytical method to quantify the diterpene jatrophone. MATERIALS AND METHODS Anti-inflammatory and antinociceptive activities of the DFji were determined by an acute arthritis model through assessment of the paw elevation time (PET) and articular diameter (AD) of Wistar rats treated orally (50, 100 or 200 mg/kg in a single-dose), and intravenously (0.1, 1, 10, 25 or 50 mg/kg in a bolus administration). The isolation of jatrophone from the DFji was carried out and confirmed by spectroscopic techniques. A UFLC-DAD method was developed and validated. RESULTS When orally administered, the highest dose (200 mg/kg) of DFJi was able to significantly reduce the PET to 24.8 ± 1.4 s (p < 0.01), when compared with the control group (33.7 ± 1.8 s). The administration of the intravenous dose of 10 mg/kg reduced the PET to 14.8 ± 0.3 s (p < 0.001). The oral and intravenous administration of the DFJi at dose of 200 and 10 mg/kg significantly prevented the formation of edema, reducing the AD in 25.3% and 32.5% (p < 0.01), respectively. The UFLC-DAD method allowed the quantification of jatrophone, which was found to be around 90 μg/mg of fraction. DISCUSSION AND CONCLUSION The DFJi displayed antinociceptive and antiedematogenic activities, representing a promising plant product for the arthritis treatment.
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Affiliation(s)
- Janaina Kieling Fröhlich
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
| | - Taciane Stein
- Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
| | - Layzon Antônio da Silva
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
| | - Maique Weber Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
| | - Carlos Rogério Tonussi
- Department of Pharmacology, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
| | - Elenara Lemos-Senna
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, Brazil
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Baccarin T, Lemos-Senna E. Potential Application of Nanoemulsions for Skin Delivery of Pomegranate Peel Polyphenols. AAPS PharmSciTech 2017; 18:3307-3314. [PMID: 28597364 DOI: 10.1208/s12249-017-0818-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 05/23/2017] [Indexed: 01/21/2023] Open
Abstract
Pomegranate peel and seeds have demonstrated to possess antioxidant compounds with potential application to protect the skin against the ultraviolet radiation damage. However, the photoprotection activity is dependent on the amount of these compounds that reach the viable skin layers. In this paper, we describe the in vitro skin permeation and retention of the major pomegranate peel polyphenols using Franz diffusion cells, after entrapping a ethyl acetate fraction (EAF) from Punica granatum peel extract into nanoemulsions (NEs) prepared with pomegranate seed oil (PSO) or medium chain triglyceride oil (MCT). The in vitro skin permeation of gallic acid (GA), ellagic acid (EA), and punicalagin (PC) was evaluated using a HPLC-DAD validated method. After 8 h of skin permeation, all polyphenol compounds were mostly retained in the skin and did not reach the receptor compartment. However, a 2.2-fold enhancement of the retained amount of gallic acid in the stratum corneum was verified after EAF-loaded NEs are applied, when compared with the free EAF. GA and EA were delivered to the viable epidermis and dermis only when nanoemulsions were applied onto the skin. The mean retained amounts of GA and EA in the EP and DE after applying the EAF-loaded PSO-NE were 1.78 and 1.36 μg cm-2 and 1.10 and 0.97 μg cm-2, respectively. Similar values were obtained after applying the EAF-loaded MCT-NE. The skin permeation results were supported by the confocal microscopy images. These results evidenced the promising application of nanoemulsions to deliver the pomegranate polyphenols into the deeper skin layers.
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Mendes C, Buttchevitz A, Kruger JH, Caon T, de Oliveira Benedet P, Lemos-Senna E, Silva MAS. Self-Nanoemulsified Drug Delivery System of Hydrochlorothiazide for Increasing Dissolution Rate and Diuretic Activity. AAPS PharmSciTech 2017; 18:2494-2504. [PMID: 28213844 DOI: 10.1208/s12249-017-0735-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 02/02/2017] [Indexed: 01/31/2023] Open
Abstract
Hydrochlorothiazide (HCTZ) is a class IV drug according to the Biopharmaceutical Classification System. This study aimed the development of self-nanoemulsifying drug delivery system (SNEDDS) for HCTZ as an approach to overcome the biopharmaceutical limitations. Pre-formulation screening and ternary phase diagrams were carried out to select the oil phase, the surfactant, and the co-surfactant as the amount of each constituent. The optimized formulations, with reduced amount of surfactant, and composed of medium chain triglycerides, Cremophor EL and Transcutol P did not affect the pH or show drug incompatibilities. The SNEDDS were stabilized by the nanoscale globules and high negative zeta potential. All the physicochemical characterization assays were performed in biorelevant media to better predict the in vivo performance. The enhanced dissolution rate of the SNEDDS reflected in the in vivo diuretic activity, presenting a natriuresis, kaliuresis, and chloriuresis at early stages and an increased volume of total urine compared with HCTZ alone. The designed SNEDDS produced an improvement in the pharmacodynamics due to high dissolution and probable inhibition of intestinal efflux protein by Cremophor EL. The use of SNEDDS demonstrated to be an efficient approach to modulate the absorption of HCTZ and drug therapeutics.
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Zanatta V, Rezzadori K, Penha FM, Zin G, Lemos-Senna E, Petrus JCC, Di Luccio M. Stability of oil-in-water emulsions produced by membrane emulsification with microporous ceramic membranes. J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2016.09.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Pohlmann AR, Lemos-Senna E. A Special Section on Pharmaceutical Nanotechnology: Development of Soft Nanoparticles and Their Biological Evaluations. J Nanosci Nanotechnol 2016; 16:1235-1237. [PMID: 27433572 DOI: 10.1166/jnn.2016.11664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Dora CL, Silva LFC, Mazzarino L, Siqueira JM, Fernandes D, Pacheco LK, Maioral MF, Santos-Silva MC, Baischl ALM, Assreuy J, Lemos-Senna E. Oral Delivery of a High Quercetin Payload Nanosized Emulsion: In Vitro and In Vivo Activity Against B16-F10 Melanoma. J Nanosci Nanotechnol 2016; 16:1275-1281. [PMID: 27433577 DOI: 10.1166/jnn.2016.11675] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Quercetin is a natural compound that has several biological activities including anticancer activity. However, the use of this drug has been limited mostly because of its poor water solubility and low bioavailability. Therefore, the development of quercetin-loaded nanocarrier systems may be considered a promising advance to exploit its therapeutic properties in clinical setting including cancer treatment. This study evaluates the effect of orally administered nanosized emulsion containing quercetin (QU-NE) on the cytotoxicity activity against B16-F10 cells in vitro, and on subcutaneous melanoma in mice inoculated with B16-F1O cells. In vivo experiments, also evaluate the co-administration of quercetin with cisplatin in order to predict synergic effects and the renal and hepatic toxicity. The nanocarriers were prepared through the hot solvent diffusion associated with the phase inversion temperature methods. In vitro study showed reduction of cell viability in a concentration-depend manner for free quercetin and QU-NE. In vivo study, quercetin either as a free drug or colloidal dispersion was administrated at a dose of 5 mg kg(-1) twice a week for 17 days via oral route. Cisplatin was administrated at dose of 1 mg kg(-1) once a week intraperitoneally. Free quercetin and QU-NE reduced tumor growth, however, the reduction observed for QU-NE (P < 0.001 vs. control) was significantly higher than free quercetin (P < 0.05 vs. control). The association of both drugs did not show synergic effect. Besides, no renal or hepatic toxicities were observed after administration of free quercetin and QU-NE. These results suggest that an improvement in the oral bioavailability of quercetin occurred when this compound was dissolved in the oily phase of a nanosized emulsion, indicating that it might have a potential application in the treatment of melanoma.
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Loch-Neckel G, Santos-Bubniak L, Mazzarino L, Jacques AV, Moccelin B, Santos-Silva MC, Lemos-Senna E. Orally Administered Chitosan-Coated Polycaprolactone Nanoparticles Containing Curcumin Attenuate Metastatic Melanoma in the Lungs. J Pharm Sci 2015; 104:3524-34. [PMID: 26085173 DOI: 10.1002/jps.24548] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 12/31/2022]
Abstract
The study was aimed to evaluate the effect of orally administered chitosan-coated nanoparticles containing curcumin on metastatic melanoma. Chitosan-coated nanoparticles containing curcumin were prepared, and their antimetastatic activity was investigated both in vitro and in vivo. Curcumin decreased cell viability and induced apoptosis of B16F10 melanoma cells. We observed that curcumin significantly decreased the expression of metalloproteinases, which are known to be associated with migration and proliferation of cancer cells. Importantly, treatment with chitosan-coated nanoparticles containing curcumin decreased pulmonary tumor formation in a murine model of experimental metastasis. Histological analyses confirmed the macroscopic results in which lungs of mice treated with curcumin-loaded chitosan-coated polycaprolactone nanoparticles had only a few small nodules and most of them were free of melanoma. Our findings indicate that nanoparticles coated with the mucoadhesive polymer chitosan containing curcumin may be a promising approach and/or intervention for the treatment of malignant melanoma.
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Affiliation(s)
- Gecioni Loch-Neckel
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Lorena Santos-Bubniak
- Departamento de Análises Clínicas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Letícia Mazzarino
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Amanda V Jacques
- Departamento de Análises Clínicas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Bárbara Moccelin
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Maria Claúdia Santos-Silva
- Departamento de Análises Clínicas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
| | - Elenara Lemos-Senna
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, 88040-900, Brazil
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Baccarin T, Mitjans M, Ramos D, Lemos-Senna E, Vinardell MP. Photoprotection by Punica granatum seed oil nanoemulsion entrapping polyphenol-rich ethyl acetate fraction against UVB-induced DNA damage in human keratinocyte (HaCaT) cell line. J Photochem Photobiol B 2015; 153:127-36. [PMID: 26406978 DOI: 10.1016/j.jphotobiol.2015.09.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/02/2015] [Accepted: 09/03/2015] [Indexed: 12/31/2022]
Abstract
There has been an increase in the use of botanicals as skin photoprotective agents. Pomegranate (Punica granatum L.) is well known for its high concentration of polyphenolic compounds and for its antioxidant and anti-inflammatory properties. The aim of this study was to analyze the photoprotection provided by P. granatum seed oil nanoemulsion entrapping the polyphenol-rich ethyl acetate fraction against UVB-induced DNA damage in the keratinocyte HaCaT cell line. For this purpose, HaCaT cells were pretreated for 1h with nanoemulsions in a serum-free medium and then irradiated with UVB (90-200 mJ/cm(2)) rays. Fluorescence microscopy analysis provided information about the cellular internalization of the nanodroplets. We also determined the in vitro SPF of the nanoemulsions and evaluated their phototoxicity using the 3T3 Neutral Red Uptake Phototoxicity Test. The nanoemulsions were able to protect the cells' DNA against UVB-induced damage in a concentration dependent manner. Nanodroplets were internalized by the cells but a higher proportion was detected along the cell membrane. The SPF obtained (~25) depended on the concentration of the ethyl acetate fraction and pomegranate seed oil in the nanoemulsion. The photoprotective formulations were classified as non-phototoxic. In conclusion, nanoemulsions entrapping the polyphenol-rich ethyl acetate fraction show potential for use as a sunscreen product.
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Affiliation(s)
- Thaisa Baccarin
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain; Programa de Pós-Graduação em Farmácia, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Montserrat Mitjans
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain
| | - David Ramos
- Unidad de Toxicología y Ecotoxicología del Parc Cientific de Barcelona, Barcelona, Spain
| | - Elenara Lemos-Senna
- Programa de Pós-Graduação em Farmácia, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Brazil
| | - Maria Pilar Vinardell
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain.
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Abstract
CONTEXT The development of low-density polymeric microparticles may be a useful approach to deliver antibiotics such as azithromycin into the lung. OBJECTIVE The aim of this study was to develop azithromycin-loaded low density polycaprolactone microparticles by the double emulsion/solvent evaporation method. MATERIALS AND METHODS Microparticles were prepared and characterized according to their physicochemical properties, drug loading, and drug release profiles. A full 2(3) factorial design was used to evaluate the effect of some independent variables on the drug loading and aerodynamic diameter of the particles. An in silico pulmonary deposition model was used to predict the lung deposition profiles for the formulations. RESULTS AND DISCUSSION The resulting particles presented drug loading up to 23.1% (wt%) and mean geometric diameters varying from 4.0 µm to 15.4 µm. Bulk and tapped densities were low, resulting in good or excellent flow properties. SEM images showed spherical particles with a smooth surface. However, hollow inner structures were observed, which may explain the low values of bulk density. The estimated aerodynamic diameters ranged from 2.3 µm to 8.9 µm. The in silico pulmonary deposition profiles indicated, for some formulations, that a significant fraction of the particles would be deposited in the deeper lung regions. CONCLUSIONS Statistical analysis demonstrated that not only drug loading but also the aerodynamic diameter of the microparticles is greatly affected by the preparation conditions. Overall, the results indicated that the low-density azithromycin-loaded microparticles with a relatively high respirable fraction may be obtained for the local treatment of lung infections.
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Affiliation(s)
- Georgia Kasten
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Luis Felipe Costa Silva
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Elenara Lemos-Senna
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
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Mazzarino L, Loch-Neckel G, dos Santos Bubniak L, Ourique F, Otsuka I, Halila S, Curi Pedrosa R, Santos-Silva MC, Lemos-Senna E, Curti Muniz E, Borsali R. Nanoparticles Made From Xyloglucan-Block-Polycaprolactone Copolymers: Safety Assessment for Drug Delivery. Toxicol Sci 2015; 147:104-15. [DOI: 10.1093/toxsci/kfv114] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Mazzarino L, Loch-Neckel G, Bubniak LDS, Mazzucco S, Santos-Silva MC, Borsali R, Lemos-Senna E. Curcumin-Loaded Chitosan-Coated Nanoparticles as a New Approach for the Local Treatment of Oral Cavity Cancer. J Nanosci Nanotechnol 2015; 15:781-91. [PMID: 26328442 DOI: 10.1166/jnn.2015.9189] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Mucoadhesive nanoparticles loaded with curcumin were developed as a new approach to deliver curcumin for the local treatment of oral cancer. PCL nanoparticles coated with chitosan displaying different molar masses were prepared by using the nanoprecipitation technique. The mucoadhesive properties of nanoparticle suspensions were demonstrated by their strong ability to interact with the glycoprotein mucin through electrostatic interactions. Similar permeation profiles of curcumin loaded in uncoated and chitosan-coated nanoparticles across porcine esophageal mucosa were verified. Curcumin concentrations retained in the mucosa suggest the possibility of a local effect of the drug. In vitro studies demonstrated that free curcumin.and curcumin loaded into nanoparticles coated with chitosan caused significant reduction of SCC-9 human oral cancer cell viability in a concentration and time-dependent manner. However, no significant cell death was observed after 24 h of treatment with unloaded nanoparticles coated with chitosan. In addition, curcumin-loaded nanoparticles showed reduced cytotoxicity, when compared with the free drug. Therefore, chitosan-coated PCL nanoparticles may be considered a promising strategy to deliver curcumin directly into the oral cavity for the treatment of oral cancer.
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Pohlmann AR, Lemos-Senna E. A Special Section on Pharmaceutical Nanotechnology: Development of Innovative Formulations and Their Biological Evaluation. J Nanosci Nanotechnol 2015; 15:759-760. [PMID: 26328439 DOI: 10.1166/jnn.2015.9175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Baccarin T, Lemos-Senna E. Pomegranate Seed Oil Nanoemulsions Encapsulating Pomegranate Peel Polyphenol-Rich Ethyl Acetate Fraction: Development and Antioxidant Assessment. ACTA ACUST UNITED AC 2014. [DOI: 10.1166/jnd.2014.1068] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mazzarino L, Borsali R, Lemos-Senna E. Mucoadhesive films containing chitosan-coated nanoparticles: a new strategy for buccal curcumin release. J Pharm Sci 2014; 103:3764-3771. [PMID: 25187001 DOI: 10.1002/jps.24142] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 06/25/2014] [Accepted: 08/06/2014] [Indexed: 01/18/2023]
Abstract
Mucoadhesive films containing curcumin-loaded nanoparticles were developed, aiming to prolong the residence time of the dosage form in the oral cavity and to increase drug absorption through the buccal mucosa. Films were prepared by the casting method after incorporation of curcumin-loaded chitosan-coated polycaprolactone nanoparticles into plasticized chitosan solutions. Different molar masses of mucoadhesive polysaccharide chitosan and concentrations of plasticizer glycerol were used to optimize the preparation conditions. Films obtained using medium and high molar mass chitosan were found to be homogeneous and flexible. Curcumin-loaded nanoparticles were uniformly distributed on the film surface, as evidenced by atomic force microscopy and high-resolution field-emission gun scanning electron microscopy (FEG-SEM) images. Analyses of film cross sections using FEG-SEM demonstrate the presence of nanoparticles inside the films. In addition, films proved to have a good rate of hydration in simulated saliva solution, displaying a maximum swelling of around 80% and in vitro prolonged-controlled delivery of curcumin. These results indicate that the mucoadhesive films containing nanoparticles offer a promising approach for buccal delivery of curcumin, which may be particularly useful in the treatment of periodontal diseases that require a sustained drug delivery.
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Affiliation(s)
- Letícia Mazzarino
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina (UFSC), Campus Universitário Trindade, Florianópolis 88040-900, SC, Brazil.
| | - Redouane Borsali
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), Université Grenoble Alpes, Grenoble Cedex 9, F-38041, France.
| | - Elenara Lemos-Senna
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina (UFSC), Campus Universitário Trindade, Florianópolis 88040-900, SC, Brazil
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Mazzarino L, Coche-Guérente L, Labbé P, Lemos-Senna E, Borsali R. On the mucoadhesive properties of chitosan-coated polycaprolactone nanoparticles loaded with curcumin using quartz crystal microbalance with dissipation monitoring. J Biomed Nanotechnol 2014; 10:787-94. [PMID: 24734531 DOI: 10.1166/jbn.2014.1768] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D) was used to investigate the mucoadhesive properties of nanoparticles decorated with low, medium and high molar mass chitosan (CS). Uncoated and chitosan-coated polycaprolactone (PCL) nanoparticles loaded with curcumin were prepared by nanoprecipitation method and characterized in terms of size, surface charge and drug content. The interactions between nanoparticles and mucin layer were monitored after the treatment of SAM-functionalized gold-coated quartz crystals with bovine submaxillary gland mucin (BSM). The results show that all investigated chitosan-coated nanoparticles adsorb onto the BSM layer, and the mass uptake was found to be independent of the chitosan molar mass. Uncoated nanoparticles showed, however, no affinity with BSM layer, confirming that the adsorption of colloidal systems occurs due to their decoration with chitosan. The adhesion is mainly attributed to electrostatic interactions between protonated amino groups of mucoadhesive chitosan and negatively charged groups of mucin. The results suggest that chitosan-coated nanoparticles are promising carriers for hydrophobic drugs delivery in the buccal mucosa.
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25
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Mazzarino L, Otsuka I, Halila S, Bubniak LDS, Mazzucco S, Santos-Silva MC, Lemos-Senna E, Borsali R. Xyloglucan-block
-Poly(ϵ-Caprolactone) Copolymer Nanoparticles Coated with Chitosan as Biocompatible Mucoadhesive Drug Delivery System. Macromol Biosci 2014; 14:709-19. [DOI: 10.1002/mabi.201300465] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/29/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Letícia Mazzarino
- Departamento de Ciências Farmacêuticas; Centro de Ciências da Saúde; Universidade Federal de Santa Catarina (UFSC); Campus Universitário Trindade; 88040-900 Florianópolis SC Brazil
| | - Issei Otsuka
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301); Université Grenoble Alpes; BP 53, F 38041 Grenoble Cedex 9 France
| | - Sami Halila
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301); Université Grenoble Alpes; BP 53, F 38041 Grenoble Cedex 9 France
| | - Lorena dos Santos Bubniak
- Departamento de Análises Clínicas; Centro de Ciências da Saúde; Universidade Federal de Santa Catarina (UFSC); Campus Universitário Trindade; 88040-900 Florianópolis SC Brazil
| | - Suelen Mazzucco
- Departamento de Análises Clínicas; Centro de Ciências da Saúde; Universidade Federal de Santa Catarina (UFSC); Campus Universitário Trindade; 88040-900 Florianópolis SC Brazil
| | - Maria C. Santos-Silva
- Departamento de Análises Clínicas; Centro de Ciências da Saúde; Universidade Federal de Santa Catarina (UFSC); Campus Universitário Trindade; 88040-900 Florianópolis SC Brazil
| | - Elenara Lemos-Senna
- Departamento de Ciências Farmacêuticas; Centro de Ciências da Saúde; Universidade Federal de Santa Catarina (UFSC); Campus Universitário Trindade; 88040-900 Florianópolis SC Brazil
| | - Redouane Borsali
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301); Université Grenoble Alpes; BP 53, F 38041 Grenoble Cedex 9 France
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Dora CL, Putaux JL, Pignot-Paintrand I, Dubreuil F, Soldi V, Borsali R, Lemos-Senna E. Physicochemical and morphological characterizations of glyceryl tristearate/castor oil nanocarriers prepared by the solvent diffusion method. J BRAZIL CHEM SOC 2012. [DOI: 10.1590/s0103-50532012005000066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Dora CL, Silva LFC, Putaux JL, Nishiyama Y, Pignot-Paintrand I, Borsali R, Lemos-Senna E. Poly(ethylene glycol) Hydroxystearate-Based Nanosized Emulsions: Effect of Surfactant Concentration on Their Formation and Ability to Solubilize Quercetin. J Biomed Nanotechnol 2012; 8:202-10. [DOI: 10.1166/jbn.2012.1380] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mazzarino L, Travelet C, Ortega-Murillo S, Otsuka I, Pignot-Paintrand I, Lemos-Senna E, Borsali R. Elaboration of chitosan-coated nanoparticles loaded with curcumin for mucoadhesive applications. J Colloid Interface Sci 2012; 370:58-66. [DOI: 10.1016/j.jcis.2011.12.063] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 12/21/2011] [Accepted: 12/22/2011] [Indexed: 10/14/2022]
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Mazzarino L, Silva LFC, Curta JC, Licínio MA, Costa A, Pacheco LK, Siqueira JM, Montanari J, Romero E, Assreuy J, Santos-Silva MC, Lemos-Senna E. Curcumin-Loaded Lipid and Polymeric Nanocapsules Stabilized by Nonionic Surfactants: An In Vitro and In Vivo Antitumor Activity on B16-F10 Melanoma and Macrophage Uptake Comparative Study. J Biomed Nanotechnol 2011; 7:406-14. [DOI: 10.1166/jbn.2011.1296] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nemen D, Lemos-Senna E. Preparação e caracterização de suspensões coloidais de nanocarreadores lipídicos contendo resveratrol destinados à administração cutânea. QUIM NOVA 2011. [DOI: 10.1590/s0100-40422011000300008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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31
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Bernardy N, Romio AP, Barcelos EI, Dal Pizzol C, Dora CL, Lemos-Senna E, Araujo PHH, Sayer C. Nanoencapsulation of quercetin via miniemulsion polymerization. J Biomed Nanotechnol 2010; 6:181-6. [PMID: 20738073 DOI: 10.1166/jbn.2010.1107] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The nanoencapsulation of quercetin, a strong antioxidant and radical scavenger, via methyl methacrylate miniemulsion polymerization, using miglyol 812 as costabilizer and lecithin as surfactant was studied and the effect of the monomer/co-stabilizer ratio and different types of initiator, 2,2'azobisisobutyronitrile (AIBN) and redox pair composed of hydrogen peroxide and ascorbic acid, was investigated. Reactions conducted in the presence of quercetin showed lower polymerization rates, indicating that the presence of quercetin inhibits (redox pair) and/or retards (AIBN) the polymerization reaction. The increment of the concentration of ascorbic acid in the reactions initiated by a redox pair resulted in a considerable increase of the reaction rate without influencing other properties as average particle diameter, due to the fact that ascorbic acid acts as a reducing agent minimizing the oxidation of quercetin. Higher quercetin recovery was obtained for nanocapsules when compared with nanospheres.
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Affiliation(s)
- Neusa Bernardy
- Departamento de Engenharia Química e Engenharia de Alimentos, CTC, Universidade Federal de Santa Catarina, Caixa Postal 476, 88040-900 Florianópolis/SC, Brazil
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Mazzarino L, Bellettini IC, Minatti E, Lemos-Senna E. Development and validation of a fluorimetric method to determine curcumin in lipid and polymeric nanocapsule suspensions. BRAZ J PHARM SCI 2010. [DOI: 10.1590/s1984-82502010000200008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A simple, rapid, and sensitive fluorimetric method was developed and validated to quantify curcumin in lipid and polymeric nanocapsule suspensions, using acetonitrile as a solvent. The excitation and emission wavelengths were set at 397 nm and 508 nm, respectively. The calibration graph was linear from 0.1 to 0.6 µg/mL with a correlation coefficient of 0.9982. The detection and quantitation limits were 0.03 and 0.10 µg/mL, respectively. The validation results confirmed that the developed method is specific, linear, accurate, and precise for its intended use. The current method was successfully applied to the evaluation of curcumin content in lipid and polymeric nanocapsule suspensions during the early stage of formulation development.
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Loch-Neckel G, Nemen D, Puhl AC, Fernandes D, Stimamiglio MA, Alvarez Silva M, Hangai M, Santos Silva MC, Lemos-Senna E. Stealth and non-stealth nanocapsules containing camptothecin: in-vitro and in-vivo activity on B16-F10 melanoma. J Pharm Pharmacol 2010; 59:1359-64. [PMID: 17910810 DOI: 10.1211/jpp.59.10.0005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Camptothecin (CPT) is an alkaloid that displays considerable antitumour activity, but clinical use has been limited by its poor water solubility and the instability of the lactone moiety (active form) in physiological media. We have therefore formulated the drug into nanocarrier systems in an attempt to improve its therapeutic properties. This study evaluates the effect of intraperitoneally administered stealth and non-stealth nanocapsules containing CPT on lung metastatic spread in mice inoculated with B16-F10 melanoma cells, and on the cytotoxic activity against B16-F10 melanoma cells in-vitro. Poly (d,l-lactide) PLA (non-stealth) and methoxy polyethylene glycol-(d,l-lactide) (PLA-PEG) (stealth) nanocapsules (49 and 66.6 kDa) were prepared by interfacial deposition of preformed polymer. CPT, as free drug or as drug-loaded nanocapsules, was administrated at a dose of 0.5 mg kg−1 at 3-day intervals for 17 days. Free drug and CPT-loaded nanocapsules reduced the number of metastatic nodules by 45.09–91.76% (P < 0.05 vs positive control). However, only CPT-loaded PLA-PEG 49 kD nanocapsules significantly decreased the number of lung metastases when compared with free drug (P < 0.05). The administration of CPT-loaded nanocapsules and free drug did not result in neutropenia at the administered dose. The improved effectiveness of pegylated nanocapsules was attributed to protection of the drug by nanoencapsulation and to reduced uptake of particles by macrophages located in the lymph nodes. This assumption was supported by the in-vitro study, in which both PLA and 49 kDa PLA-PEG nanocapsules containing CPT were more cytotoxic than the free drug against B16-F10 melanoma cells.
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Affiliation(s)
- Gecioni Loch-Neckel
- Laboratório de Farmacotécnica, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina, Brazil
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Rogerio AP, Dora CL, Andrade EL, Chaves JS, Silva LFC, Lemos-Senna E, Calixto JB. Anti-inflammatory effect of quercetin-loaded microemulsion in the airways allergic inflammatory model in mice. Pharmacol Res 2009; 61:288-97. [PMID: 19892018 DOI: 10.1016/j.phrs.2009.10.005] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 10/24/2009] [Accepted: 10/25/2009] [Indexed: 12/21/2022]
Abstract
Quercetin is a plant-derived flavonoid widely known by its anti-oxidant and anti-inflammatory properties, but its oral bioavailability is very poor and this becomes difficult to assess its therapeutic potential. Here we have compared the anti-inflammatory effect of quercetin-loaded microemulsion (QU-ME) and quercetin suspension (QU-SP) in an experimental model of airways allergic inflammation. Mice received daily oral doses of QU-ME (3 or 10mg/kg; in an oil-in-water microemulsion content 0.02:0.2:1 of lecithin:castor oil:Solutol HS15((R))), QU-SP [10mg/kg, in carboxymethylcellulose (CMC) 0.5% in water] or vehicle from the 18th to the 22nd day after the first immunization with ovalbumin (OVA). Dexamethasone was used as positive control drug. Every parameter was evaluated in the 22nd day (24h after the second OVA-challenge). We have also tried to assess by HPLC-MS a quercetin metabolite in the blood of rats treated with QU-SP or QU-ME. QU-ME was better orally absorbed when compared with QU-SP. Furthermore, oral administration of QU-SP failed to interfere with leukocyte recruitment, while QU-ME inhibited in a dose-dependent way, the eosinophil recruitment to the bronchoalveolar lavage fluid (BALF). QU-ME also significantly reduced both IL-5 and IL-4 levels, but failed to interfere with CCL11, IFN-gamma and LTB(4) levels. In addition, QU-ME oral treatment inhibited the nuclear transcription factor kappa B (NF-kappaB) activation, P-selectin expression and the mucus production in the lung. The present results show that QU-ME exhibits pronounced anti-inflammatory properties in a murine model of airways allergic inflammation and suggest that it might present therapeutic potential for the airways inflammatory diseases management.
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Affiliation(s)
- Alexandre P Rogerio
- Departamento de Farmacologia, Universidade Federal de Santa Catarina, Campus Universitário Trindade, Centro de Ciências Biológicas, Florianópolis, SC, Brazil
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Medeiros DC, Mazon-Cardoso T, Lemos-Senna E, Poli A. Comparative in vitro and in vivo evaluations of oral sustained-release formulations of diclofenac sodium in beagle dogs. Pharmazie 2009; 64:648-652. [PMID: 19947166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PURPOSE Two sustained release formulations (microspheres and Voltaren SR75) were evaluated for their drug release characteristics in dissolution (in vitro study) and after oral administration to beagle dogs (in vivo study) by HPLC. METHODS The dissolution study was carried out according to the paddle method and the pharmacokinetic study was conducted using HPLC analysis in a crossover design in six female beagle dogs after oral administration of 75 mg diclofenac sodium (DFS). RESULTS The dissolution profiles showed 45% release for Voltaren SR75 and around 95% for the microspheres. Oral administration of DFS resulted in AUC(0-24) and Cmax values of 20.4 microg h/mL and 3.04 microg/mL for microspheres and 33.5 microg h/mL and 5.59 microg/mL for Voltaren, respectively. The Tmax was 3.0 h for both formulations. A significant difference in AUC(0-24) and Cmax was observed for DFS absorption from microspheres and Voltaren. CONCLUSIONS The results from the dissolution assay demonstrated the faster release of diclofenac sodium from microspheres. The bioavailability of DFS in microspheres was about 61% that of Voltaren, for the parameters AUC and Cmax, and they are therefore not bioequivalent to Voltaren in relation to the extent of absorption. However, the rate of drug absorption (Tmax) was similar for the two formulations.
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Affiliation(s)
- D C Medeiros
- Departamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brasil
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Zanetti-Ramos BG, Lemos-Senna E, Cramail H, Cloutet E, Borsali R, Soldi V. The role of surfactant in the miniemulsion polymerization of biodegradable polyurethane nanoparticles. Materials Science and Engineering: C 2008. [DOI: 10.1016/j.msec.2007.04.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Granada A, Murakami FS, Sartori T, Lemos-Senna E, Silva MAS. Development and validation of an HPLC method to quantify camptothecin in polymeric nanocapsule suspensions. J AOAC Int 2008; 91:551-556. [PMID: 18567300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A simple, rapid, and sensitive reversed-phase column high-performance liquid chromatographic method was developed and validated to quantify camptothecin (CPT) in polymeric nanocapsule suspensions. The chromatographic separation was performed on a Supelcosil LC-18 column (15 cm x 4.6 mm id, 5 microm) using a mobile phase consisting of methanol-10 mM KH2PO4 (60 + 40, v/v; pH 2.8) at a flow rate of 1.0 mL/min and ultraviolet detection at 254 nm. The calibration graph was linear from 0.5 to 3.0 microg/mL with a correlation coefficient of 0.9979, and the limit of quantitation was 0.35 microg/mL. The assay recovery ranged from 97.3 to 105.0%. The intraday and interday relative standard deviation values were < 5.0%. The validation results confirmed that the developed method is specific, linear, accurate, and precise for its intended use. The current method was successfully applied to the evaluation of CPT entrapment efficiency and drug content in polymeric nanocapsule suspensions during the early stage of formulation development.
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Affiliation(s)
- Andréa Granada
- Universidade Federal de Santa Catarina, Departamento de Ciências Farmacêuticas, Laboratório de Farmacotécnica, Campus Universitário Trindade, Florianópolis, SC 88040-900, Brazil
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Granada A, Murakami FS, Sartori T, Lemos-Senna E, Silva MAS. Development and Validation of an HPLC Method to Quantify Camptothecin in Polymeric Nanocapsule Suspensions. J AOAC Int 2008. [DOI: 10.1093/jaoac/91.3.551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A simple, rapid, and sensitive reversed-phase column high-performance liquid chromatographic method was developed and validated to quantify camptothecin (CPT) in polymeric nanocapsule suspensions. The chromatographic separation was performed on a Supelcosil LC-18 column (15 cm 4.6 mm id, 5 m) using a mobile phase consisting of methanol10 mM KH2PO4 (60 + 40, v/v; pH 2.8) at a flow rate of 1.0 mL/min and ultraviolet detection at 254 nm. The calibration graph was linear from 0.5 to 3.0 g/mL with a correlation coefficient of 0.9979, and the limit of quantitation was 0.35 g/mL. The assay recovery ranged from 97.3 to 105.0. The intraday and interday relative standard deviation values were <5.0. The validation results confirmed that the developed method is specific, linear, accurate, and precise for its intended use. The current method was successfully applied to the evaluation of CPT entrapment efficiency and drug content in polymeric nanocapsule suspensions during the early stage of formulation development.
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Affiliation(s)
- Andra Granada
- Universidade Federal de Santa Catarina, Departamento de Cincias Farmacuticas, Laboratrio de Farmacotcnica, Campus Universitrio Trindade, Florianpolis, SC 88040-900, Brazil
| | - Fabio S Murakami
- Universidade Federal de Santa Catarina, Departamento de Cincias Farmacuticas, Laboratrio de Controle de Qualidade, Campus Universitrio Trindade, Florianpolis, SC 88040-900, Brazil
| | - Tatiane Sartori
- Universidade Federal de Santa Catarina, Departamento de Cincias Farmacuticas, Laboratrio de Farmacotcnica, Campus Universitrio Trindade, Florianpolis, SC 88040-900, Brazil
| | - Elenara Lemos-Senna
- Universidade Federal de Santa Catarina, Departamento de Cincias Farmacuticas, Laboratrio de Farmacotcnica, Campus Universitrio Trindade, Florianpolis, SC 88040-900, Brazil
| | - Marcos A S Silva
- Universidade Federal de Santa Catarina, Departamento de Cincias Farmacuticas, Laboratrio de Controle de Qualidade, Campus Universitrio Trindade, Florianpolis, SC 88040-900, Brazil
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Bazzo GC, Lemos-Senna E, Gonçalves MC, Pires ATN. Effect of preparation conditions on morphology, drug content and release profiles of poly(hydroxybutyrate) microparticles containing piroxicam. J BRAZIL CHEM SOC 2008. [DOI: 10.1590/s0103-50532008000500016] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Zanetti-Ramos BG, Lemos-Senna E, Soldi V, Borsali R, Cloutet E, Cramail H. Polyurethane nanoparticles from a natural polyol via miniemulsion technique. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.09.057] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Dora CL, Alvarez-Silva M, Trentin AG, de Faria TJ, Fernandes D, da Costa R, Stimamiglio M, Lemos-Senna E. Evaluation of antimetastatic activity and systemic toxicity of camptothecin-loaded microspheres in mice injected with B16-F10 melanoma cells. J Pharm Pharm Sci 2006; 9:22-31. [PMID: 16849005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
PURPOSE The aim of this work was to evaluate the pulmonary antimetastatic activity and the systemic toxicity of camptothecin-loaded microspheres. METHODS PCL microspheres containing camptothecin (CPT) were prepared by the emulsion solvent/evaporation method and characterized according to their encapsulation efficiency, particle size, morphology, and drug release. The ability of CPT to inhibit the lung metastasis was verified using an experimental mouse model intravenously injected with metastatic B16- F10 melanoma cells. The microspheres and the free drug were given intraperitoneally at a dose of 7 mg/kg at intervals of three or five days for 24 days. The systemic toxicity of CPT was evaluated by weight measurements, survival and hemograms of the animals. RESULTS The encapsulation efficiency was nearly 80%. The drug release was complete after 72 hours, but the burst effect increased from 7% to 35% with the increase in CPT content in the particles. It was observed during the in vivo essays that all groups treated with CPT had a decrease of nearly 70% in the number of lung metastases. However, systemic toxicity was verified in animals that received the free drug. CONCLUSION Camptothecin-loaded microspheres demonstrated similar therapeutic efficacy when compared to those of the free drug, but the toxicity was significantly reduced.
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Affiliation(s)
- Cristiana Lima Dora
- Laboratório de Farmacotécnica, Departamento de Ciéncias Farmacéuticas, Centro de Ciéncias da Saúde, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, Brazil
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Zanetti-Ramos B, Soldi V, Lemos-Senna E, Borsali R. Use of Natural Monomer in the Synthesis of Nano- and Microparticles of Polyurethane by Suspension-Polyaddition Technique. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/masy.200551129] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lemos-Senna E, Wouessidjewe D, Lesieur S, Duchêne D. Preparation of amphiphilic cyclodextrin nanospheres using the emulsification solvent evaporation method. Influence of the surfactant on preparation and hydrophobic drug loading. Int J Pharm 1998. [DOI: 10.1016/s0378-5173(98)00147-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lemos-Senna E, Wouessidjewe D, Duchêne D, Sylviane Lesieur. Amphiphilic cyclodextrin nanospheres: particle solubilization and reconstitution by the action of a non-ionic detergent. Colloids Surf B Biointerfaces 1998. [DOI: 10.1016/s0927-7765(98)00010-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lemos-Senna E, Wouessidjewe D, Lesieur S, Puisieux F, Couarraze G, Duchêne D. Evaluation of the hydrophobic drug loading characteristics in nanoprecipitated amphiphilic cyclodextrin nanospheres. Pharm Dev Technol 1998; 3:85-94. [PMID: 9532603 DOI: 10.3109/10837459809028482] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of this work was to evaluate the loading capacity and the association characteristics of the hydrophobic drug progesterone on amphiphilic cyclodextrin nanospheres prepared by the nanoprecipitation method. The colloidal suspensions were prepared in the presence or absence of two different surfactants, Pluronic F68 and Tween 80. The physicochemical characteristics of the nanospheres were assessed using a nanosizer, zetameter, and transmission electron microscope. The physical state of the drug was verified using differential scanning calorimetry (DSC) and x-ray diffraction (XRD) methods. The in vitro progesterone release was investigated at 37 degrees C after dilution of the suspensions in sink conditions. Nanospheres with a mean diameter from 100 to 300 nm and a low degree of polydispersity were prepared from amphiphilic hexanoyl-gamma-cyclodextrin. The progesterone loading capacity was not affected by the formulation parameters tested. The DSC and XRD studies demonstrated the absence of the crystalline domains of progesterone in loaded nanospheres. The DSC studies also demonstrated the presence of interactions between the drug and carrier. The release of the drug from the carrier was extremely rapid and was governed by a partition phenomenon that depends only on the solubility of the drug in the release medium. From these results, we concluded that with this method, the progesterone is molecularly associated at the surface of the cyclodextrin nanospheres, probably through hydrophobic interactions in specific sites. The release profiles obtained can be of value when an improvement in the bioavailability of the drug is desired.
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Affiliation(s)
- E Lemos-Senna
- URA 1218, Université Paris Sud, Centre d'Etudes Pharmaceutiques, Chatênay-Malabry, France
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