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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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Vidal-Diniz AT, Guimarães HN, Garcia GM, Braga ÉM, Richard S, Grabe-Guimarães A, Mosqueira VCF. Polyester Nanocapsules for Intravenous Delivery of Artemether: Formulation Development, Antimalarial Efficacy, and Cardioprotective Effects In Vivo. Polymers (Basel) 2022; 14:polym14245503. [PMID: 36559869 PMCID: PMC9786304 DOI: 10.3390/polym14245503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Artemether (ATM) is an effective antimalarial drug that also has a short half-life in the blood. Furthermore, ATM is also cardiotoxic and is associated with pro-arrhythmogenic risks. We aimed to develop a delivery system enabling the prolonged release of ATM into the blood coupled with reduced cardiotoxicity. To achieve this, we prepared polymeric nanocapsules (NCs) from different biodegradable polyesters, namely poly(D,L-lactide) (PLA), poly-ε-caprolactone (PCL), and surface-modified NCs, using a monomethoxi-polyethylene glycol-block-poly(D,L-lactide) (PEG5kDa-PLA45kDa) polymer. Using this approach, we were able to encapsulate high yields of ATM (>85%, 0−4 mg/mL) within the oily core of the NCs. The PCL-NCs exhibited the highest percentage of ATM loading as well as a slow release rate. Atomic force microscopy showed nanometric and spherical particles with a narrow size dispersion. We used the PCL NCs loaded with ATM for biological evaluation following IV administration. As with free-ATM, the ATM-PCL-NCs formulation exhibited potent antimalarial efficacy using either the “Four-day test” protocol (ATM total at the end of the 4 daily doses: 40 and 80 mg/kg) in Swiss mice infected with P. berghei or a single low dose (20 mg/kg) of ATM in mice with higher parasitemia (15%). In healthy rats, IV administration of single doses of free-ATM (40 or 80 mg/kg) prolonged cardiac QT and QTc intervals and induced both bradycardia and hypotension. Repeated IV administration of free-ATM (four IV doses at 20 mg/kg every 12 h for 48 h) also prolonged the QT and QTc intervals but, paradoxically, induced tachycardia and hypertension. Remarkably, the incorporation of ATM in ATM-PCL-NCs reduced all adverse effects. In conclusion, the encapsulation of ATM in biodegradable polyester NCs reduces its cardiovascular toxicity without affecting its antimalarial efficacy.
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Affiliation(s)
- Alessandra Teixeira Vidal-Diniz
- School of Pharmacy, Universidade Federal de Ouro Preto (UFOP), Campus Universitário Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil
| | - Homero Nogueira Guimarães
- Department of Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Giani Martins Garcia
- School of Pharmacy, Universidade Federal de Ouro Preto (UFOP), Campus Universitário Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil
| | - Érika Martins Braga
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Sylvain Richard
- CNRS, INSERM, Université de Montpellier, 34295 Montpellier, France
- PhyMedExp, CHU Arnaud de Villeneuve 371, Avenue du Doyen Gaston Giraud, CEDEX 05, 34295 Montpellier, France
- Correspondence: (S.R.); (V.C.F.M.)
| | - Andrea Grabe-Guimarães
- School of Pharmacy, Universidade Federal de Ouro Preto (UFOP), Campus Universitário Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil
| | - Vanessa Carla Furtado Mosqueira
- School of Pharmacy, Universidade Federal de Ouro Preto (UFOP), Campus Universitário Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil
- Correspondence: (S.R.); (V.C.F.M.)
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Silva JC, Bavestrello M, Gazzola V, Spinella G, Pane B, Grasselli E, Demori I, Canesi L, Emionite L, Cilli M, Buschiazzo A, Sambuceti G, Pitta IR, Pitta MG, Perego P, Palombo D, Abdalla DSP. Ischemia-reperfusion damage is attenuated by GQ-11, a peroxisome proliferator-activated receptor (PPAR)-α/γ agonist, after aorta clamping in rats. Life Sci 2022; 297:120468. [DOI: 10.1016/j.lfs.2022.120468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/28/2022] [Accepted: 03/05/2022] [Indexed: 10/18/2022]
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Di Miceli JFF, Andrade MER, Carvalho PLA, Santos EA, Faria Mota Oliveira AEMD, Fernandes CP, Cruz RAS, Garrett R, Mosqueira VCF, Cassali GD, D'Haese C, Nysten B, Leite JIA, Cardoso VN, Araújo RS. Lecithin-based nanocapsule loading sucupira (Pterodon emarginatus) oil effects in experimental mucositis. Toxicol Rep 2022; 9:1537-1547. [DOI: 10.1016/j.toxrep.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 12/01/2022] Open
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Polylactide Nanocapsules Attenuate Adverse Cardiac Cellular Effects of Lyso-7, a Pan-PPAR Agonist/Anti-Inflammatory New Thiazolidinedione. Pharmaceutics 2021; 13:pharmaceutics13091521. [PMID: 34575597 PMCID: PMC8470374 DOI: 10.3390/pharmaceutics13091521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 11/17/2022] Open
Abstract
Lyso-7 is a novel synthetic thiazolidinedione, which is a receptor (pan) agonist of PPAR α,β/δ,γ with anti-inflammatory activity. We investigated the cardiotoxicity of free Lyso-7 in vitro (4.5–450 nM), and Lyso-7 loaded in polylactic acid nanocapsules (NC) in vivo (Lyso-7-NC, 1.6 mg/kg). In previous work, we characterized Lyso-7-NC. We administered intravenously Lyso-7, Lyso-7-NC, control, and blank-NC once a day for seven days in mice. We assessed cell contraction and intracellular Ca2+ transients on single mice cardiomyocytes enzymatically isolated. Lyso-7 reduced cell contraction and accelerated relaxation while lowering diastolic Ca2+ and reducing Ca2+ transient amplitude. Lyso-7 also promoted abnormal ectopic diastolic Ca2+ events, which isoproterenol dramatically enhanced. Incorporation of Lyso-7 in NC attenuated drug effects on cell contraction and prevented its impact on relaxation, diastolic Ca2+, Ca2+ transient amplitude, Ca2+ transient decay kinetics, and promotion of diastolic Ca2+ events. Acute effects of Lyso-7 on cardiomyocytes in vitro at high concentrations (450 nM) were globally similar to those observed after repeated administration in vivo. In conclusion, we show evidence for off-target effects of Lyso-7, seen during acute exposure of cardiomyocytes to high concentrations and after repeated treatment in mice. Nano-encapsulation of Lyso-7 in polymeric NC attenuated the unwanted effects, particularly ectopic Ca2+ events known to support life-threatening arrhythmias favored by stress or exercise.
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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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Karabasz A, Szczepanowicz K, Cierniak A, Mezyk-Kopec R, Dyduch G, Szczęch M, Bereta J, Bzowska M. In vivo Studies on Pharmacokinetics, Toxicity and Immunogenicity of Polyelectrolyte Nanocapsules Functionalized with Two Different Polymers: Poly-L-Glutamic Acid or PEG. Int J Nanomedicine 2019; 14:9587-9602. [PMID: 31824153 PMCID: PMC6901045 DOI: 10.2147/ijn.s230865] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 10/19/2019] [Indexed: 12/18/2022] Open
Abstract
Background The functionalization of a nanoparticle surface with PEG (polyethylene glycol) is an approach most often used for extending nanomaterial circulation time, enhancing its delivery and retention in the target tissues, and decreasing systemic toxicity of nanocarriers and their cargos. However, because PEGylated nanomedicines were reported to induce immune response including production of anti-PEG antibodies, activation of the complement system as well as hypersensitivity reactions, hydrophilic polymers other than PEG are gaining interest as its replacement in nanomaterial functionalization. Here, we present the results of in vivo evaluation of polyelectrolyte nanocapsules with biodegradable, polyelectrolyte multilayer shells consisting of poly-l-lysine (PLL) and poly-l-glutamic (PGA) acid as a potential drug delivery system. We compared the effects of nanocapsules functionalized with two different “stealth” polymers as the external layer of tested nanocapsules was composed of PGA (PGA-terminated nanocapsules, NC-PGA) or the copolymer of poly-l-lysine and polyethylene glycol (PEG-terminated nanocapsules, NC-PEG). Methods Nanocapsules pharmacokinetics, biodistribution and routes of eliminations were analysed postmortem by fluorescence intensity measurement. Toxicity of intravenously injected nanocapsules was evaluated with analyses of blood morphology and biochemistry and by histological tissue analysis. DNA integrity was determined by comet assay, cytokine profiling was performed using flow cytometer and detection of antibodies specific to PEG was performed by ELISA assay. Results We found that NC-PGA and NC-PEG had similar pharmacokinetic and biodistribution profiles and both were eliminated by hepatobiliary and renal clearance. Biochemical and histopathological evaluation of long-term toxicity performed after a single as well as repeated intravenous injections of nanomaterials demonstrated that neither NC-PGA nor NC-PEG had any acute or chronic hemato-, hepato- or nephrotoxic effects. In contrast to NC-PGA, repeated administration of NC-PEG resulted in prolonged increased serum levels of a number of cytokines. Conclusion Our results indicate that NC-PEG may cause undesirable activation of the immune system. Therefore, PGA compares favorably with PEG in equipping nanomaterials with stealth properties. Our research points to the importance of a thorough assessment of the potential influence of nanomaterials on the immune system.
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Affiliation(s)
- Alicja Karabasz
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Krzysztof Szczepanowicz
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland
| | - Agnieszka Cierniak
- Department of General Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland.,Department of Biochemistry, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, Kraków, Poland
| | - Renata Mezyk-Kopec
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Grzegorz Dyduch
- Department of Pathomorphology, Jagiellonian University Medical College, Kraków, Poland
| | - Marta Szczęch
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland
| | - Joanna Bereta
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Monika Bzowska
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
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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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Moraes ADTDO, Miranda MDSD, Jacob ÍTT, Amorim CADC, Moura ROD, Silva SÂSD, Soares MBP, Almeida SMVD, Souza TRCDL, Oliveira JFD, Silva TGD, Melo CMLD, Moreira DRM, Lima MDCAD. Synthesis, in vitro and in vivo biological evaluation, COX-1/2 inhibition and molecular docking study of indole-N-acylhydrazone derivatives. Bioorg Med Chem 2018; 26:5388-5396. [PMID: 30293795 DOI: 10.1016/j.bmc.2018.07.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/03/2018] [Accepted: 07/14/2018] [Indexed: 12/20/2022]
Abstract
The objective of this work was to obtain and evaluate anti-inflammatory in vitro, in vivo and in silico potential of novel indole-N-acylhydrazone derivatives. In total, 10 new compounds (3a-j) were synthesized in satisfactory yields, through a condensation reaction in a single synthesis step. In the lymphoproliferation assay, using mice splenocytes, 3a and 3b showed inhibition of lymphocyte proliferation of 62.7% (±3.5) and 50.7% (±2), respectively, while dexamethasone presented an inhibition of 74.6% (±2.4). Moreover, compound 3b induced higher Th2 cytokines production in mice splenocytes cultures. The results for COX inhibition assays showed that compound 3b is a selective COX-2 inhibitor, but with less potency when compared to celecoxib, and compound 3a not presented selectivity towards COX-2. The molecular docking results suggest compounds 3a and 3b interact with the active site of COX-2 in similar conformations, but not with the active site of COX-1, and this may be the main reason to the COX-2 selectivity of compound 3b. In vivo carrageenan-induced paw edema assays were adopted for the confirmation of the anti-inflammatory activity. Compound 3b showed better results in suppressing edema at all tested concentrations and was able to induce an edema inhibition of 100% after 5 h of carrageenan injection at the 30 mg kg-1 dosage, corroborating with the COX inhibition and lymphoproliferation results. I addition to our experimental results, in silico analysis suggest that compounds 3a and 3b present a well-balanced profile between pharmacodynamics and pharmacokinetics. Thus, our preliminary results revealed the potentiality of a new COX-2 selective derivative in the modulation of the inflammatory process.
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Affiliation(s)
| | | | - Íris Trindade Tenório Jacob
- Universidade Federal de Pernambuco (UFPE), Departamento de Antibióticos (DANTI), 50670-901 Recife, PE, Brazil
| | | | - Ricardo Olímpio de Moura
- Universidade Estadual da Paraíba (UEPB), Departamento de Farmácia, 58429-500 Campina Grande, PB, Brazil
| | | | - Milena Botelho Pereira Soares
- Fundação Oswaldo Cruz, Centro de Pesquisa Gonçalo Moniz/Laboratório de Engenharia Tecidual e Imunofarmacologia, 40296-710 Salvador, BA, Brazil
| | - Sinara Mônica Vitalino de Almeida
- Universidade de Pernambuco (UPE), Faculdade de Ciências, Educação e Tecnologia de Garanhuns (FACETEG), 55290-000 Garanhuns, PE, Brazil
| | | | | | | | | | - Diogo Rodrigo Magalhães Moreira
- Fundação Oswaldo Cruz, Centro de Pesquisa Gonçalo Moniz/Laboratório de Engenharia Tecidual e Imunofarmacologia, 40296-710 Salvador, BA, Brazil
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12
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Increased Body Exposure to New Anti-Trypanosomal Through Nanoencapsulation. Sci Rep 2017; 7:8429. [PMID: 28814794 PMCID: PMC5559493 DOI: 10.1038/s41598-017-08469-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 07/11/2017] [Indexed: 12/26/2022] Open
Abstract
Lychnopholide, a lipophilic sesquiterpene lactone, is efficacious in mice at the acute and chronic phases of Chagas disease. Conventional poly-ε-caprolactone (PCL) and long-circulating poly(D,L-lactide)-block-polyethylene glycol (PLA-PEG) nanocapsules containing lychnopholide were developed and characterized. Lychnopholide presented high association efficiency (>90%) with the nanocapsules. A new, fast and simple HPLC-UV-based bioanalytical method was developed, validated in mouse plasma and applied to lychnopholide quantification in in vitro release kinetics and pharmacokinetics. The nanocapsules had mean hydrodynamic diameters in the range of 100-250 nm, negative zeta potentials (-30 mV to -57 mV), with good physical stability under storage. Atomic force microscopy morphological analysis revealed spherical monodispersed particles and the absence of lychnopholide crystallization or aggregation. Association of lychnopholide to PLA-PEG nanocapsules resulted in a 16-fold increase in body exposure, a 26-fold increase in plasma half-life and a dramatic reduction of the lychnopholide plasma clearance (17-fold) in comparison with free lychnopholide. The improved pharmacokinetic profile of lychnopholide in long-circulating nanocapsules is in agreement with the previously reported improved efficacy observed in Trypanosoma cruzi-infected mice. The present lychnopholide intravenous dosage form showed great potential for further pre-clinical and clinical studies in Chagas disease and cancer therapies.
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Oliveira LT, de Paula MA, Roatt BM, Garcia GM, Silva LSB, Reis AB, de Paula CS, Vilela JMC, Andrade MS, Pound-Lana G, Mosqueira VCF. Impact of dose and surface features on plasmatic and liver concentrations of biodegradable polymeric nanocapsules. Eur J Pharm Sci 2017; 105:19-32. [DOI: 10.1016/j.ejps.2017.04.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 11/17/2022]
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Biodegradable Polymeric Nanocapsules Prevent Cardiotoxicity of Anti-Trypanosomal Lychnopholide. Sci Rep 2017; 7:44998. [PMID: 28349937 PMCID: PMC5368638 DOI: 10.1038/srep44998] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 02/17/2017] [Indexed: 12/14/2022] Open
Abstract
Chagas disease is a neglected parasitic disease caused by the protozoan Trypanosoma cruzi. New antitrypanosomal options are desirable to prevent complications, including a high rate of cardiomyopathy. Recently, a natural substance, lychnopholide, has shown therapeutic potential, especially when encapsulated in biodegradable polymeric nanocapsules. However, little is known regarding possible adverse effects of lychnopholide. Here we show that repeated-dose intravenous administration of free lychnopholide (2.0 mg/kg/day) for 20 days caused cardiopathy and mortality in healthy C57BL/6 mice. Echocardiography revealed concentric left ventricular hypertrophy with preserved ejection fraction, diastolic dysfunction and chamber dilatation at end-stage. Single cardiomyocytes presented altered contractility and Ca2+ handling, with spontaneous Ca2+ waves in diastole. Acute in vitro lychnopholide application on cardiomyocytes from healthy mice also induced Ca2+ handling alterations with abnormal RyR2-mediated diastolic Ca2+ release. Strikingly, the encapsulation of lychnopholide prevented the cardiac alterations induced in vivo by the free form repeated doses. Nanocapsules alone had no adverse cardiac effects. Altogether, our data establish lychnopholide presented in nanocapsule form more firmly as a promising new drug candidate to cure Chagas disease with minimal cardiotoxicity. Our study also highlights the potential of nanotechnology not only to improve the efficacy of a drug but also to protect against its adverse effects.
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Acharjee A, Ament Z, West JA, Stanley E, Griffin JL. Integration of metabolomics, lipidomics and clinical data using a machine learning method. BMC Bioinformatics 2016; 17:440. [PMID: 28185575 PMCID: PMC5133491 DOI: 10.1186/s12859-016-1292-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The recent pandemic of obesity and the metabolic syndrome (MetS) has led to the realisation that new drug targets are needed to either reduce obesity or the subsequent pathophysiological consequences associated with excess weight gain. Certain nuclear hormone receptors (NRs) play a pivotal role in lipid and carbohydrate metabolism and have been highlighted as potential treatments for obesity. This realisation started a search for NR agonists in order to understand and successfully treat MetS and associated conditions such as insulin resistance, dyslipidaemia, hypertension, hypertriglyceridemia, obesity and cardiovascular disease. The most studied NRs for treating metabolic diseases are the peroxisome proliferator-activated receptors (PPARs), PPAR-α, PPAR-γ, and PPAR-δ. However, prolonged PPAR treatment in animal models has led to adverse side effects including increased risk of a number of cancers, but how these receptors change metabolism long term in terms of pathology, despite many beneficial effects shorter term, is not fully understood. In the current study, changes in male Sprague Dawley rat liver caused by dietary treatment with a PPAR-pan (PPAR-α, -γ, and -δ) agonist were profiled by classical toxicology (clinical chemistry) and high throughput metabolomics and lipidomics approaches using mass spectrometry. RESULTS In order to integrate an extensive set of nine different multivariate metabolic and lipidomics datasets with classical toxicological parameters we developed a hypotheses free, data driven machine learning approach. From the data analysis, we examined how the nine datasets were able to model dose and clinical chemistry results, with the different datasets having very different information content. CONCLUSIONS We found lipidomics (Direct Infusion-Mass Spectrometry) data the most predictive for different dose responses. In addition, associations with the metabolic and lipidomic data with aspartate amino transaminase (AST), a hepatic leakage enzyme to assess organ damage, and albumin, indicative of altered liver synthetic function, were established. Furthermore, by establishing correlations and network connections between eicosanoids, phospholipids and triacylglycerols, we provide evidence that these lipids function as a key link between inflammatory processes and intermediary metabolism.
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Affiliation(s)
- Animesh Acharjee
- Medical Research Council, Elsie Widdowson Laboratory, 120 Fulbourn Road, Cambridge, CB1 9NL, UK.,The Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Zsuzsanna Ament
- Medical Research Council, Elsie Widdowson Laboratory, 120 Fulbourn Road, Cambridge, CB1 9NL, UK
| | - James A West
- Medical Research Council, Elsie Widdowson Laboratory, 120 Fulbourn Road, Cambridge, CB1 9NL, UK
| | - Elizabeth Stanley
- Medical Research Council, Elsie Widdowson Laboratory, 120 Fulbourn Road, Cambridge, CB1 9NL, UK
| | - Julian L Griffin
- Medical Research Council, Elsie Widdowson Laboratory, 120 Fulbourn Road, Cambridge, CB1 9NL, UK. .,The Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK.
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16
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Yin S, Chang L, Li T, Wang G, Gu X, Li J. Construction of novel pH-sensitive hybrid micelles for enhanced extracellular stability and rapid intracellular drug release. RSC Adv 2016. [DOI: 10.1039/c6ra23050d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Novel pH-sensitive hybrid micelles with high entrapment efficiency were constructed to realize rapid intracellular drug release without premature release.
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Affiliation(s)
- Shaoping Yin
- Department of Pharmaceutics
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing
- China
| | - Liang Chang
- Department of Pharmaceutics
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing
- China
| | - Tie Li
- Department of Pharmaceutics
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing
- China
| | - Guangji Wang
- Center of Pharmacokinetics
- Key Laboratory of Drug Metabolism and Pharmacokinetics
- China Pharmaceutical University
- Nanjing
- China
| | - Xiaochen Gu
- College of Pharmacy
- University of Manitoba
- Winnipeg
- Canada R3E 0T5
| | - Juan Li
- Department of Pharmaceutics
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing
- China
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