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da Silva JGL, Gonçalves AAM, Oliveira LT, Garcia GM, Batista MA, de Mendonça LZ, Viana KF, Sant’Ana RDCO, Melo Júnior OADO, Silveira-Lemos D, Dutra WO, Martins-Filho OA, Galdino AS, de Moura SAL, Mosqueira VCF, Giunchetti RC. Polymeric Delivery Systems as a Potential Vaccine against Visceral Leishmaniasis: Formulation Development and Immunogenicity. Vaccines (Basel) 2023; 11:1309. [PMID: 37631877 PMCID: PMC10459565 DOI: 10.3390/vaccines11081309] [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: 04/26/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 08/27/2023] Open
Abstract
Recent studies suggest that the association of antigens in microparticles increases the anti-Leishmania vaccine immunogenicity. This study aims to investigate the in situ effect of the adjuvant performance consisting of chitosan-coated poly(D,L-lactic) acid submicrometric particles (SMP) and analyze the inflammatory profile and toxicity. Two formulations were selected, SMP1, containing poly(D,L-lactide) (PLA) 1% wt/v and chitosan 1% wt/v; and SMP2, containing PLA 5% wt/v and chitosan 5% wt/v. After a single dose of the unloaded SMP1 or SMP2 in mice, the SMPs promoted cell recruitment without tissue damage. In addition, besides the myeloperoxidase (MPO) activity having demonstrated similar results among the analyzed groups, a progressive reduction in the levels of N-acetyl-β-D-glucosaminidase (NAG) until 72 h was observed for SMPs. While IL-6 levels were similar among all the analyzed groups along the kinetics, only the SMPs groups had detectable levels of TNF-α. Additionally, the Leishmania braziliensis antigen was encapsulated in SMPs (SMP1Ag and SMP2Ag), and mice were vaccinated with three doses. The immunogenicity analysis by flow cytometry demonstrated a reduction in NK (CD3-CD49+) cells in all the SMPs groups, in addition to impairment in the T cells subsets (CD3+CD4+) and CD3+CD8+) and B cells (CD19+) of the SMP2 group. The resulting data demonstrate that the chitosan-coated SMP formulations stimulate the early events of an innate immune response, suggesting their ability to increase the immunogenicity of co-administered Leishmania antigens.
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Affiliation(s)
- João Guilherme Lino da Silva
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
- Nucleus for Research in Biological Sciences (NUPEB), Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil
| | - Ana Alice Maia Gonçalves
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Liliam Teixeira Oliveira
- Laboratory of Pharmaceutics and Nanotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (L.T.O.); (G.M.G.); (V.C.F.M.)
| | - Giani Martins Garcia
- Laboratory of Pharmaceutics and Nanotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (L.T.O.); (G.M.G.); (V.C.F.M.)
| | - Maurício Azevedo Batista
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Ludmila Zanandreis de Mendonça
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Kelvinson Fernandes Viana
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Rita de Cássia Oliveira Sant’Ana
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Otoni Alves de Oliveira Melo Júnior
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
| | - Denise Silveira-Lemos
- Integrated Research Group on Biomarkers, René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte 30190-009, Brazil;
| | - Walderez Ornelas Dutra
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
- National Institute of Science and Technology in Tropical Diseases, INCT-DT, Salvador 40110-060, Brazil
| | - Olindo Assis Martins-Filho
- Laboratory of Diagnosis and Monitoring Biomarkers, René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte 30190-009, Brazil;
| | - Alexsandro Sobreira Galdino
- Laboratory of Microorganism Biotechnology, Federal University of São João Del-Rei (UFSJ), Midwest Campus, Divinópolis 35501-296, Brazil;
| | - Sandra Aparecida Lima de Moura
- Laboratory of Biomaterials and Experimental Pathology, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35402-136, Brazil;
| | - Vanessa Carla Furtado Mosqueira
- Laboratory of Pharmaceutics and Nanotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (L.T.O.); (G.M.G.); (V.C.F.M.)
| | - Rodolfo Cordeiro Giunchetti
- Laboratory of Biology of Cell Interactions, Department of Morphology, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil; (J.G.L.d.S.); (A.A.M.G.); (M.A.B.); (L.Z.d.M.); (K.F.V.); (R.d.C.O.S.); (O.A.d.O.M.J.); (W.O.D.)
- National Institute of Science and Technology in Tropical Diseases, INCT-DT, Salvador 40110-060, Brazil
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PEGylated and functionalized polylactide-based nanocapsules: An overview. Int J Pharm 2023; 636:122760. [PMID: 36858134 DOI: 10.1016/j.ijpharm.2023.122760] [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: 10/15/2022] [Revised: 02/08/2023] [Accepted: 02/17/2023] [Indexed: 03/03/2023]
Abstract
Polymeric nanocapsules (NC) are versatile mixed vesicular nanocarriers, generally containing a lipid core with a polymeric wall. They have been first developed over four decades ago with outstanding applicability in the cosmetic and pharmaceutical fields. Biodegradable polyesters are frequently used in nanocapsule preparation and among them, polylactic acid (PLA) derivatives and copolymers, such as PLGA and amphiphilic block copolymers, are widely used and considered safe for different administration routes. PLA functionalization strategies have been developed to obtain more versatile polymers and to allow the conjugation with bioactive ligands for cell-targeted NC. This review intends to provide steps in the evolution of NC since its first report and the recent literature on PLA-based NC applications. PLA-based polymer synthesis and surface modifications are included, as well as the use of NC as a novel tool for combined treatment, diagnostics, and imaging in one delivery system. Furthermore, the use of NC to carry therapeutic and/or imaging agents for different diseases, mainly cancer, inflammation, and infections is presented and reviewed. Constraints that impair translation to the clinic are discussed to provide safe and reproducible PLA-based nanocapsules on the market. We reviewed the entire period in the literature where the term "nanocapsules" appears for the first time until the present day, selecting original scientific publications and the most relevant patent literature related to PLA-based NC. We presented to readers a historical overview of these Sui generis nanostructures.
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Repositioning of Tamoxifen in Surface-Modified Nanocapsules as a Promising Oral Treatment for Visceral Leishmaniasis. Pharmaceutics 2021; 13:pharmaceutics13071061. [PMID: 34371752 PMCID: PMC8309129 DOI: 10.3390/pharmaceutics13071061] [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: 05/22/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022] Open
Abstract
Standards of care for human visceral leishmaniasis (VL) are based on drugs used parenterally, and oral treatment options are urgently needed. In the present study, a repurposing strategy was used associating tamoxifen (TMX) with polyethylene glycol-block-polylactide nanocapsules (NC) and its anti-leishmanial efficacy was reported in vivo. Stable surface modified-NC (5 mg/mL of TMX) exhibited 200 nm in size, +42 mV of zeta potential, and 98% encapsulation efficiency. Atomic force microscopy evidenced core-shell-NC. Treatment with TMX-NC reduced parasite-DNA quantified in liver and spleen compared to free-TMX; and provided a similar reduction of parasite burden compared with meglumine antimoniate in mice and hamster models. Image-guided biodistribution showed accumulation of NC in liver and spleen after 30 min post-administration. TMX-NC reduced the number of liver granulomas and restored the aspect of capsules and trabeculae in the spleen of infected animals. TMX-NC was tested for the first time against VL models, indicating a promising formulation for oral treatment.
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Quattrini F, Berrecoso G, Crecente-Campo J, Alonso MJ. Asymmetric flow field-flow fractionation as a multifunctional technique for the characterization of polymeric nanocarriers. Drug Deliv Transl Res 2021; 11:373-395. [PMID: 33521866 PMCID: PMC7987708 DOI: 10.1007/s13346-021-00918-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2021] [Indexed: 12/28/2022]
Abstract
The importance of polymeric nanocarriers in the field of drug delivery is ever-increasing, and the accurate characterization of their properties is paramount to understand and predict their behavior. Asymmetric flow field-flow fractionation (AF4) is a fractionation technique that has gained considerable attention for its gentle separation conditions, broad working range, and versatility. AF4 can be hyphenated to a plurality of concentration and size detectors, thus permitting the analysis of the multifunctionality of nanomaterials. Despite this potential, the practical information that can be retrieved by AF4 and its possible applications are still rather unfamiliar to the pharmaceutical scientist. This review was conceived as a primer that clearly states the "do's and don'ts" about AF4 applied to the characterization of polymeric nanocarriers. Aside from size characterization, AF4 can be beneficial during formulation optimization, for drug loading and drug release determination and for the study of interactions among biomaterials. It will focus mainly on the advances made in the last 5 years, as well as indicating the problematics on the consensus, which have not been reached yet. Methodological recommendations for several case studies will be also included.
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Affiliation(s)
- Federico Quattrini
- Center for Research in Molecular Medicine and Chronic Diseases, Singular Research Centers, 15782, Santiago de Compostela, Spain
| | - Germán Berrecoso
- Center for Research in Molecular Medicine and Chronic Diseases, Singular Research Centers, 15782, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706, Santiago de Compostela, Spain
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José Crecente-Campo
- Center for Research in Molecular Medicine and Chronic Diseases, Singular Research Centers, 15782, Santiago de Compostela, Spain.
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706, Santiago de Compostela, Spain.
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases, Singular Research Centers, 15782, Santiago de Compostela, Spain.
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706, Santiago de Compostela, Spain.
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
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Chen X, Zhang W, Dou Y, Song T, Shen S, Dou H. Applications of asymmetrical flow field-flow fractionation for separation and characterization of polysaccharides: A review. J Chromatogr A 2020; 1635:461726. [PMID: 33250160 DOI: 10.1016/j.chroma.2020.461726] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/02/2020] [Accepted: 11/15/2020] [Indexed: 12/24/2022]
Abstract
Polysaccharides are the most abundant natural biopolymers on the earth and are widely used in food, medicine, materials, cosmetics, and other fields. The physicochemical properties of polysaccharides such as particle size and molecular weight often affect their practical applications. In recent years, asymmetrical flow field-flow fractionation (AF4) has been widely used in the separation and characterization of polysaccharides because it has no stationary phases or packing materials, which reduces the risk of shear degradation of polysaccharides. In this review, the principle of AF4 was introduced briefly. The operation conditions of AF4 for the analysis of polysaccharides were discussed. The applications of AF4 for the separation and characterization of polysaccharides from different sources (plants, animals, and microorganisms) over the last decade were critically reviewed.
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Affiliation(s)
- Xue Chen
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China
| | - Wenhui Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Yuwei Dou
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China
| | - Tiange Song
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Haiyang Dou
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China; Affiliated Hospital of Hebei University, Baoding 071000, China.
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PLA-PEG nanospheres decorated with phage display selected peptides as biomarkers for detection of human colorectal adenocarcinoma. Drug Deliv Transl Res 2020; 10:1771-1787. [PMID: 32840755 DOI: 10.1007/s13346-020-00826-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Peptide-mediated targeting to colorectal cancer can increase selectivity and specificity of this cancer diagnosis acting as biomarkers. The present work aimed to select peptides using the phage display technique and associate the peptides with polymeric nanospheres in order to evaluate their cytotoxicity and selectivity during cell interaction with Caco-2 human colon tumor cell line. Two peptides identified by phage display (peptide-1 and peptide-2) were synthesized and exhibited purity higher than 84%. Poly(lactic acid)-block-polyethylene glycol nanospheres were prepared by nanoprecipitation and double emulsion methods in order to load the two peptides. Nanoparticles ranged in size from 114 to 150 nm and peptide encapsulation efficiency varied from 16 to 32%, depending on the methodology. No cytotoxic activity was observed towards Caco-2 tumor cell line, either free or loaded peptides in concentrations up to 3 μM at incubation times of 6 and 24 h, indicating safety as biomarkers. Fluorescein isothiocyanate-labeled peptides allowed evaluating selective interactions with Caco-2 cells, where peptide-1 entrapped in nanospheres showed greater intensity of co-localized cell fluorescence, in comparison to peptide-2. Peptide-1 loaded in nanospheres revealed promising to be investigated in further studies of selectivity with other human colon rectal cells as a potential biomarker.Graphical abstract.
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Machado MGC, Pound-Lana G, de Oliveira MA, Lanna EG, Fialho MCP, de Brito ACF, Barboza APM, Aguiar-Soares RDDO, Mosqueira VCF. Labeling PLA-PEG nanocarriers with IR780: physical entrapment versus covalent attachment to polylactide. Drug Deliv Transl Res 2020; 10:1626-1643. [DOI: 10.1007/s13346-020-00812-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Pucek A, Tokarek B, Waglewska E, Bazylińska U. Recent Advances in the Structural Design of Photosensitive Agent Formulations Using "Soft" Colloidal Nanocarriers. Pharmaceutics 2020; 12:E587. [PMID: 32599791 PMCID: PMC7356306 DOI: 10.3390/pharmaceutics12060587] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023] Open
Abstract
The growing demand for effective delivery of photosensitive active compounds has resulted in the development of colloid chemistry and nanotechnology. Recently, many kinds of novel formulations with outstanding pharmaceutical potential have been investigated with an expansion in the design of a wide variety of "soft" nanostructures such as simple or multiple (double) nanoemulsions and lipid formulations. The latter can then be distinguished into vesicular, including liposomes and "smart" vesicles such as transferosomes, niosomes and ethosomes, and non-vesicular nanosystems with solid lipid nanoparticles and nanostructured lipid carriers. Encapsulation of photosensitive agents such as drugs, dyes, photosensitizers or antioxidants can be specifically formulated by the self-assembly of phospholipids or other amphiphilic compounds. They are intended to match unique pharmaceutic and cosmetic requirements and to improve their delivery to the target site via the most common, i.e., transdermal, intravenous or oral administration routes. Numerous surface modifications and functionalization of the nanostructures allow increasing their effectiveness and, consequently, may contribute to the treatment of many diseases, primarily cancer. An increasing article number is evidencing significant advances in applications of the different classes of the photosensitive agents incorporated in the "soft" colloidal nanocarriers that deserved to be highlighted in the present review.
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Affiliation(s)
| | | | | | - Urszula Bazylińska
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (A.P.); (B.T.); (E.W.)
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Araújo RS, Garcia GM, Vilela JMC, Andrade MS, Oliveira LAM, Kano EK, Lange CC, Brito MAVPE, Brandão HDM, Mosqueira VCF. Cloxacillin benzathine-loaded polymeric nanocapsules: Physicochemical characterization, cell uptake, and intramammary antimicrobial effect. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:110006. [PMID: 31499941 DOI: 10.1016/j.msec.2019.110006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/30/2019] [Accepted: 07/19/2019] [Indexed: 12/22/2022]
Abstract
The present work shows the development and evaluation of the veterinary antibiotic cloxacillin benzathine (CLOXB) loaded into poly-ε-caprolactone (PCL) nanocapsules (NC), as a potential new treatment strategy to manage bovine intramammary infections, such as mastitis. Staphylococcus aureus-induced mastitis is often a recurrent disease due to the persistence of bacteria within infected cells. CLOXB-PCL NC were prepared by interfacial deposition of preformed biodegradable polymer followed by solvent displacement method. The mean diameter of NC varied from 241 to 428 nm and from 326 to 375 nm, when determined by dynamic light scattering and by atomic force microscopy, respectively. The zeta potential of NC was negative and varied from -28 to -51 mV. In vitro release studies from the NC were performed in two media under sink conditions: PBS with 1% polyethylene glycol or milk. A reversed-phase HPLC method was developed to determine the NC entrapment efficiency and kinetics of CLOXB release from the NC. Free CLOXB dissolution occurred very fast in both media, while drug release from the NC was slower and incomplete (below 50%) after 9 h. CLOXB release kinetics from polymeric NC was fitted with the Korsmeyer-Peppas model indicating that CLOXB release is governed by diffusion following Fick's law. The fluorescence confocal microscopy images of macrophage-like J774A.1 cells reveal NC uptake and internalization in vitro. In addition, antimicrobial effect of the intramammary administration of CLOXB-PCL NC in cows with mastitis resulted in no clinical signs of toxicity and allowed complete pathogen elimination after treatment. The in vivo results obtained in this work suggest that CLOXB-PCL NC could be a promising formulation for the treatment of intramammary infections in cattle, considering their physicochemical properties, release profiles and effects on bovine mastitis control.
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Affiliation(s)
- Raquel Silva Araújo
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Minas Gerais 35400-000, Brazil.
| | - Giani Martins Garcia
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Minas Gerais 35400-000, Brazil
| | | | | | | | - Eunice Kazue Kano
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Minas Gerais 35400-000, Brazil.
| | - Carla Christine Lange
- Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610 Dom Bosco, Juiz de Fora, MG 36038-330, Brazil.
| | | | - Humberto de Mello Brandão
- Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610 Dom Bosco, Juiz de Fora, MG 36038-330, Brazil.
| | - Vanessa Carla Furtado Mosqueira
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Minas Gerais 35400-000, Brazil.
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Trindade IC, Pound-Lana G, Pereira DGS, de Oliveira LAM, Andrade MS, Vilela JMC, Postacchini BB, Mosqueira VCF. Mechanisms of interaction of biodegradable polyester nanocapsules with non-phagocytic cells. Eur J Pharm Sci 2018; 124:89-104. [DOI: 10.1016/j.ejps.2018.08.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/10/2018] [Accepted: 08/18/2018] [Indexed: 12/19/2022]
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Dou YX, Zhou JT, Wang TT, Huang YF, Chen VP, Xie YL, Lin ZX, Gao JS, Su ZR, Zeng HF. Self-nanoemulsifying drug delivery system of bruceine D: a new approach for anti-ulcerative colitis. Int J Nanomedicine 2018; 13:5887-5907. [PMID: 30319255 PMCID: PMC6167998 DOI: 10.2147/ijn.s174146] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Bruceine D (BD) is a major bioactive component isolated from the traditional Chinese medicinal plant Brucea javanica which has been widely utilized to treat dysentery (also known as ulcerative colitis [UC]). Methods To improve the water solubility and absolute bioavailability of BD, we developed a self-nanoemulsifying drug delivery system (SNEDDS) composing of MCT (oil), Solutol HS-15 (surfactant), propylene glycol (co-surfactant) and BD. The physicochemical properties and pharmacokinetics of BD-SNEDDS were characterized, and its anti-UC activity and potential mechanism were evaluated in TNBS-induced UC rat model. Results The prepared nanoemulsion has multiple beneficial aspects including small mean droplet size, low polydispersity index (PDI), high zeta potential (ZP) and excellent stability. Transmission electron microscopy showed that nanoemulsion droplets contained uniform shape and size of globules. Pharmacokinetic studies demonstrated that BD-SNEDDS exhibited enhanced pharmacokinetic parameters as compared with BD-suspension. Moreover, BD-SNEDDS significantly restored the colon length and body weight, reduced disease activity index (DAI) and colon pathology, decreased histological scores, diminished oxidative stress, and suppressed TLR4, MyD88, TRAF6, NF-κB p65 protein expressions in TNBS-induced UC rat model. Conclusion These results demonstrated that BD-SNEDDS exhibited highly improved oral bioavailability and advanced anti-UC efficacy. In conclusion, our current results provided a foundation for further research of BD-SNEDDS as a potential complementary therapeutic agent for UC treatment.
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Affiliation(s)
- Yao-Xing Dou
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China.,Department of Pharmacy, The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China,
| | - Jiang-Tao Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China.,Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Tong-Tong Wang
- Department of Pharmacy, The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China,
| | - Yan-Feng Huang
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Vicky Ping Chen
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, USA
| | - You-Liang Xie
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Zhi-Xiu Lin
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Jian-Sheng Gao
- Guangzhou Baiyunshan Mingxing Pharmaceutical Co. Ltd., Guangzhou, People's Republic of China
| | - Zi-Ren Su
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Hui-Fang Zeng
- Department of Pharmacy, The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China,
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Pound-Lana GEN, Garcia GM, Trindade IC, Capelari-Oliveira P, Pontifice TG, Vilela JMC, Andrade MS, Nottelet B, Postacchini BB, Mosqueira VCF. Phthalocyanine photosensitizer in polyethylene glycol-block-poly(lactide-co-benzyl glycidyl ether) nanocarriers: Probing the contribution of aromatic donor-acceptor interactions in polymeric nanospheres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:220-233. [PMID: 30423704 DOI: 10.1016/j.msec.2018.09.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/08/2018] [Accepted: 09/07/2018] [Indexed: 01/18/2023]
Abstract
For best photosensitizer activity phthalocyanine dyes used in photodynamic therapy should be molecularly dispersed. Polyethylene glycol-block-polylactide derivatives presenting benzyl side-groups were synthesized to encapsulate a highly lipophilic phthalocyanine dye (AlClPc) and evaluate the effect of π-π interactions on the nanocarrier colloidal stability and dye dispersion. Copolymers with 0, 1, 2 and 6 mol% of benzyl glycidyl ether (BGE) were obtained via polyethylene glycol initiated ring-opening copolymerization of D,l-lactide with BGE. The block copolymers formed stable, monodisperse nanospheres with low in vitro cytotoxicity. AlClPc loading increased the nanosphere size and affected their colloidal stability. The photo-physical properties of the encapsulated dye, studied in batch and after separation by field flow fractionation, demonstrated the superiority of plain PEG-PLA over BGE-containing copolymers in maintaining the dye in its monomeric (non-aggregated) form in aqueous suspension. High dye encapsulation and sustained dye release suggest that these nanocarriers are good candidates for photodynamic therapy.
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Affiliation(s)
- Gwenaelle E N Pound-Lana
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil.
| | - Giani M Garcia
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - Izabel C Trindade
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - Patrícia Capelari-Oliveira
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - Thais Godinho Pontifice
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - José Mário C Vilela
- CIT - Centro de Inovação e Tecnologia Senai-Fiemg, Avenida José Cândido da Silveira, 2000, Horto, Belo Horizonte 31035-536, Minas Gerais, Brazil
| | - Margareth S Andrade
- CIT - Centro de Inovação e Tecnologia Senai-Fiemg, Avenida José Cândido da Silveira, 2000, Horto, Belo Horizonte 31035-536, Minas Gerais, Brazil
| | - Benjamin Nottelet
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247, Université Montpellier, CNRS, ENSCM, Montpellier, France
| | - Bruna B Postacchini
- Laboratory of Molecular Photophysics, Physics Department, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Vanessa C F Mosqueira
- Laboratory of Pharmaceutical Development and Nanobiotechnology, School of Pharmacy, Universidade Federal de Ouro Preto, Minas Gerais, Brazil.
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