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Chen M, Hei J, Huang Y, Liu X, Huang Y. In vivo safety evaluation method for nanomaterials for cancer therapy. Clin Transl Oncol 2024:10.1007/s12094-024-03466-9. [PMID: 38573443 DOI: 10.1007/s12094-024-03466-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/13/2024] [Indexed: 04/05/2024]
Abstract
Nanomaterials are extensively used in the diagnosis and treatment of cancer and other diseases because of their distinctive physicochemical properties, including the small size and ease of modification. The approval of numerous nanomaterials for clinical treatment has led to a significant increase in human exposure to these materials. When nanomaterials enter organisms, they interact with DNA, cells, tissues, and organs, potentially causing various adverse effects, such as genotoxicity, reproductive toxicity, immunotoxicity, and damage to tissues and organs. Therefore, it is crucial to elucidate the side effects and toxicity mechanisms of nanomaterials thoroughly before their clinical applications. Although methods for in vitro safety evaluation of nanomaterials are well established, systematic methods for in vivo safety evaluation are still lacking. This review focuses on the in vivo safety evaluation of nanomaterials and explores their potential effects. In addition, the experimental methods for assessing such effects in various disciplines, including toxicology, pharmacology, physiopathology, immunology, and bioinformatics are also discussed.
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Affiliation(s)
- Mengqi Chen
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jingyi Hei
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Yan Huang
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xiyu Liu
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China.
| | - Yong Huang
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, 530021, Guangxi, China.
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2
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Ureña NM, de Oliveira CP, Guterres SS, Pohlmann AR, da Costa OTF, Boechat AL. The Anti-Arthritic Activity of Diclofenac Lipid-Core Nanocapsules: Stereological Analysis Showing More Protection of Deep Joint Components. Molecules 2023; 28:5219. [PMID: 37446881 DOI: 10.3390/molecules28135219] [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: 05/01/2023] [Revised: 06/30/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Diclofenac is the most prescribed nonsteroidal anti-inflammatory drug worldwide and is used to relieve pain and inflammation in inflammatory arthritis. Diclofenac is associated with serious adverse effects, even in regular-dose regimens. Drug delivery systems can overcome this issue by reducing adverse effects and optimizing their efficacy. This study evaluated the activity of lipid-core nanocapsules loaded with diclofenac (DIC-LNCs) in an experimental model of adjuvant-induced arthritis. The diclofenac nanoformulation was obtained via self-assembly. A stereological analysis approach was applied for the morphological quantification of the volume, density, and cellular profile count of the metatarsophalangeal joints of rats. Proinflammatory cytokines and biochemical profiles were also obtained. Our results showed that the diclofenac nanocapsule DIC-LNCs were able to reduce arthritis compared with the control group and the DIC group. DIC-LNCs efficiently reduced proinflammatory cytokines, C-reactive protein, and xanthine oxidase levels. Additionally, DIC-LNCs reduced the loss of synoviocytes and chondrocytes compared with the DIC (p < 0.05) and control groups (p < 0.05). These data suggest that DIC-LNCs have anti-arthritic activity and preserve joint components, making them promising for clinical use.
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Affiliation(s)
- Nathalie Marte Ureña
- Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus 69077-000, Brazil
| | - Catiúscia Padilha de Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Oscar Tadeu Ferreira da Costa
- Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus 69077-000, Brazil
- Laboratório de Morfologia Quantitativa, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus 69077-000, Brazil
| | - Antonio Luiz Boechat
- Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus 69077-000, Brazil
- Laboratório de Terapias Inovadoras, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus 69077-000, Brazil
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AbouSamra MM, Elgohary R, Mansy SS. Innovated pirfenidone loaded lecithin nanocapsules for targeting liver fibrosis: Formulation, characterization and in vivo study. Int J Pharm 2023; 631:122539. [PMID: 36572266 DOI: 10.1016/j.ijpharm.2022.122539] [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: 08/29/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
Increasing interest in developing antifibrotic therapies became a paramount priority due to the globally raised incidence of deaths secondary to hepatic cirrhosis. This work deals with the development of innovative antifibrotic pirfenidone -loaded lecithin core nanocapsules. This with the intention to target the liver and to increase the drug bioavailability, reducing drug liver toxicity, and studying the associated hepatic microenvironment changes. PFD-loaded lecithin nanocapsules (PFD-LENCs) were prepared using the natural lipoid S45 for its dual benefits of being both a lipid and an amphiphilic surfactant. The selected formulation exhibited in vitro sustained drug release up to 24 h compared to free PFD, which is consistent with the studied pharmacokinetic profile. The studied cytotoxicity of PFD as well as PFD-LENCs exhibited negligible cytotoxicity in normal oral epithelial cells. For exploring the capability of the PFD-LENCs in reaching the liver; in vivo tracing using CLSM, in vivo biodistribution to the vital organs were conducted and electron microscopic examination for depicting nanoparticles in liver tissue was performed. Results revealed the capability of the prepared fluorescent LENC2 in reaching the liver, PFD-LENCs detection in the Disse space of the liver and the significant accumulation of PFD-LENCs in liver tissue compared to the other tested organs. The assessment of the necro-inflammatory, antioxidant and the anti-fibrotic effect of PFD-LENCs (50 & 100 mg/kg) exhibited a significant decrease of liver enzymes, TNF-α, TGF-β, Col-1, α-SMA, and TIMP-1, and a significant increase of catalase enzyme and MMP2 compared to free PFD. EM studies, revealed often detection of dendritic cells in PFD-LENCs (100 mg/kg) treated mice and abnormal collagen structure which can represent an adjunct contribution to the antifibrotic mechanism of PFD-LENCs. In conclusion, the development of this innovative PFD loaded lecithin nanocapsules achieved a targeting ability to the liver, controlled drug release, thereby increase the PFD therapeutic value in downregulating hepatic fibrosis in adjunct with the reduction of liver toxicity.
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Affiliation(s)
- Mona M AbouSamra
- Pharmaceutical Technology Department, National Research Centre, Egypt.
| | - Rania Elgohary
- Narcotics, Ergogenics and Poisons Department, National Research Centre, Egypt
| | - Soheir S Mansy
- Electron Microscopy Research Department, Theodor Bilharz Research Institute, Cairo, Egypt
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Zancan LR, Bruinsmann FA, Paese K, Türck P, Bahr A, Zimmer A, Carraro CC, Schenkel PC, Belló-Klein A, Schwertz CI, Driemeier D, Pohlmann AR, Guterres SS. Oral delivery of ambrisentan-loaded lipid-core nanocapsules as a novel approach for the treatment of pulmonary arterial hypertension. Int J Pharm 2021; 610:121181. [PMID: 34653563 DOI: 10.1016/j.ijpharm.2021.121181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 12/29/2022]
Abstract
Ambrisentan (AMB) is an orphan drug approved for oral administration that has been developed for the treatment of pulmonary arterial hypertension (PAH), a chronic and progressive pathophysiological state that might result in death if left untreated. Lipid-core nanocapsules (LNCs) are versatile nanoformulations capable of loading lipophilic drugs for topical, vaginal, oral, intravenous, pulmonary, and nasal administration. Our hypothesis was to load AMB into these nanocapsules (LNCamb) and test their effect on slowing or reducing the progression of monocrotaline-induced PAH in a rat model, upon oral administration. LNCamb displayed a unimodal distribution of diameters (around 200 nm), negative zeta potential (-11.5 mV), high encapsulation efficiency (78%), spherical shape, and sustained drug release (50-60% in 24 h). The in vivo pharmacodynamic effect of the LNCamb group was evaluated by observing the echocardiography, hemodynamic, morphometric, and histological data, which showed a significant decrease in PAH in this group, as compared to the control group (AMBsolution). LNCamb showed the benefit of reversing systolic dysfunction and preventing vascular remodeling with greater efficacy than that observed in the control group. The originality and contribution of our work reveal the promising value of this nanoformulation as a novel therapeutic strategy for PAH treatment.
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Affiliation(s)
- Lali Ronsoni Zancan
- Programa de Pós-Graduação em Nanotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Franciele Aline Bruinsmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Karine Paese
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Patrick Türck
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Alan Bahr
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Alexsandra Zimmer
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Cristina Campos Carraro
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Paulo Cavalheiro Schenkel
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Adriane Belló-Klein
- Laboratório de Fisiologia Cardiovascular e Espécies Ativas de Oxigênio, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite 500, Porto Alegre 90050-170, RS, Brazil
| | - Claiton I Schwertz
- Setor de Patologia Veterinária, Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre 91540-000, RS, Brazil
| | - David Driemeier
- Setor de Patologia Veterinária, Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre 91540-000, RS, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Sílvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Nanotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil.
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Laurentino AOM, Solómon J, Tonietto BD, Cestonaro LV, Dos Santos NG, Piton YV, Izolan L, Marques D, Costa-Valle MT, Garcia SC, Sebben V, Dallegrave E, Schaefer PG, Barros EJ, Arbo MD, Leal MB. Levamisole, a cocaine cutting agent, induces acute and subchronic systemic alterations in Wistar rats. Toxicol Appl Pharmacol 2021; 426:115649. [PMID: 34273407 DOI: 10.1016/j.taap.2021.115649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/14/2021] [Accepted: 07/09/2021] [Indexed: 12/31/2022]
Abstract
The use of the anthelmintic levamisole as a cocaine adulterant has been increasing worldwide. Complications caused by this association include systemic vasculitis, agranulocytosis, neutropenia, tissue necrosis, pulmonary hemorrhage, and renal injury. Data about toxicity of levamisole are scarce, therefore the aim of this study was to evaluate the acute and subchronic toxic effects of levamisole in rats. Male Wistar rats received saline or levamisole by intraperitoneal route at the doses of 12, 24 and 36 mg/kg in the acute toxicity test; and at 3, 6 and 12 mg/kg in the subchronic toxicity test. Toxicity was evaluated using behavioral, cognitive, renal, hematological, biochemical and histopathological parameters. Acute administration of levamisole caused behavioral and histopathological alterations. Subchronic administration caused behavioral, cognitive and hematological alterations (p < 0.0001 and p < 0.05, respectively), impairment of liver and kidney functions (p < 0.05), and changes of antioxidant defenses (p ≤ 0.0001). Both administrations produced toxic effects of clinical relevance, which make levamisole a dangerous cutting agent. Furthermore, the knowledge of these effects can contribute to the correct diagnosis and treatment of cocaine dependents with unusual systemic alterations.
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Affiliation(s)
- Ana Olívia Martins Laurentino
- Programa de Pós-Graduação em Ciências Biológicas, Farmacologia e Terapêutica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil; Laboratório de Farmacologia e Toxicologia Neurocomportamental, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Janaína Solómon
- Laboratório de Farmacologia e Toxicologia Neurocomportamental, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Bruna Ducatti Tonietto
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/1° andar, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Larissa Vivan Cestonaro
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/1° andar, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Nícolas Guimarães Dos Santos
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Yasmin Vendruscolo Piton
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Lucas Izolan
- Programa de Pós-Graduação em Ciências Biológicas: Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/209, 90046-900 Porto Alegre, Rio Grande do Sul, Brazil
| | - Douglas Marques
- Laboratório de Farmacologia e Toxicologia Neurocomportamental, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Biológicas: Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/209, 90046-900 Porto Alegre, Rio Grande do Sul, Brazil
| | - Marina Tuerlinckx Costa-Valle
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Solange Cristina Garcia
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/1° andar, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Viviane Sebben
- Centro de Informação Toxicológica, Av. Ipiranga, 5400, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil
| | - Pedro Guilherme Schaefer
- Faculdade de Medicina, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), R. Ramiro Barcelos, 2350, 90035-007 Porto Alegre, Rio Grande do Sul, Brazil
| | - Elvino José Barros
- Faculdade de Medicina, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), R. Ramiro Barcelos, 2350, 90035-007 Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcelo Dutra Arbo
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia - Anexo I, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luis, 150/3° andar, 90620-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/1° andar, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil.
| | - Mirna Bainy Leal
- Programa de Pós-Graduação em Ciências Biológicas, Farmacologia e Terapêutica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil; Laboratório de Farmacologia e Toxicologia Neurocomportamental, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, 90050-170 Porto Alegre, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Ciências Biológicas: Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/209, 90046-900 Porto Alegre, Rio Grande do Sul, Brazil.
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6
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Oliveira NK, Frank LA, Squizani ED, Reuwsaat JCV, Marques BM, Motta H, Garcia AWA, Kinskovski UP, Barcellos VA, Schrank A, Pohlmann AR, Staats CC, Guterres SS, Vainstein MH, Kmetzsch L. New nanotechnological formulation based on amiodarone-loaded lipid core nanocapsules displays anticryptococcal effect. Eur J Pharm Sci 2021; 162:105816. [PMID: 33757827 DOI: 10.1016/j.ejps.2021.105816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/21/2021] [Accepted: 03/18/2021] [Indexed: 01/01/2023]
Abstract
Cryptococcus neoformans is the etiological agent of cryptococcal meningoencephalitis. The recommended available treatment has low efficiency, with high toxicity and resistance as recurrent problems. In the search of new treatment protocols, the proposal of new pharmacological approaches is considered an innovative strategy, mainly nanotechnological systems considering fungal diseases. The antiarrhythmic drug amiodarone has demonstrated antifungal activity against a range of fungi, including C. neoformans. Here, considering the importance of calcium storage mediated by transporters on cryptococcal virulence, we evaluated the use of the calcium channel blocker amiodarone as an alternative therapy for cryptococcosis. C. neoformans displayed high sensitivity to amiodarone, which was also synergistic with fluconazole. Amiodarone treatment influenced some virulence factors, interrupting the calcium-calcineurin signaling pathway. Experiments with murine cryptococcosis models revealed that amiodarone treatment increased the fungal burden in the lungs, while its combination with fluconazole did not improve treatment compared to fluconazole alone. In addition, we have developed different innovative nanotechnological formulations, one of which combining two drugs with different mechanisms of action. Lipid-core nanocapsules (LNC) loaded with amiodarone (LNCAMD), fluconazole (LNCFLU) and both (LNCAMD+FLU) were produced to achieve a better efficacy in vivo. In an intranasal model of treatment, all the LNC formulations had an antifungal effect. In an intraperitoneal treatment, LNCAMD showed an enhanced anticryptococcal effect compared to the free drug, whereas LNCFLU or LNCAMD+FLU displayed no differences from the free drugs. In this way, nanotechnology using amiodarone formulations could be an effective therapy for cryptococcal infections.
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Affiliation(s)
| | - Luiza Abrahão Frank
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre RS, Brazil
| | - Eamim Daidrê Squizani
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - Heryk Motta
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Uriel Perin Kinskovski
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Augusto Schrank
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre RS, Brazil; Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre RS, Brazil
| | - Charley Christian Staats
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Sílvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre RS, Brazil
| | - Marilene Henning Vainstein
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lívia Kmetzsch
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
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7
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Pires J, Cargnin ST, Costa SA, Sinhorin VDG, Damazo AS, Sinhorin AP, Bicudo RDC, Cavalheiro L, Valladão DMDS, Pohlmann AR, Guterres SS, Ferrarini SR. Healing of dermal wounds property of Caryocar brasiliense oil loaded polymeric lipid-core nanocapsules: formulation and in vivo evaluation. Eur J Pharm Sci 2020; 150:105356. [PMID: 32389834 DOI: 10.1016/j.ejps.2020.105356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 03/30/2020] [Accepted: 04/17/2020] [Indexed: 01/16/2023]
Abstract
Cutaneous lesions lead to complications in patients, since they may be recurrent and also represent risk of progression to infection and/or amputation. Therefore, effective, protective, and topical treatments of easy application and removal need to be developed to provide effective alternatives to patients. The Caryocar brasiliense Cambess (CBC) presents important pharmacological activities and proved in the healing process. This paper reports the improvement of the CBC nanostructured (LNCCBC and LNCCBC+) activity in dermal wounds in vivo. The oil was physico-chemically characterized and used in the development of lipid-core nanocapsules (LNCs), coated (LNCCBC+) or without chitosan (LNCCBC), in concentration of 1.0 mg mL-1. Hydrogel (HG) was tested in vivo on lesions in the back of male Wistar rats for 14 days. The oil presented appropriate physico-chemical characteristics for its use, such as moisture 0.76 %, acidity 0.85 % and oleic acid 25.90 %. The LNCs showed nanometric size (around 200 nm), monomodal distribution, slight acid pH and zeta potential of + 22.1 mV in accordance with the composition. The nanostructured oil induced dermal healing in vivo showing significantly better improvement than free oil. LNCCBC+ showed best results showing the higher increase of the production of type 1 collagen, an important protein to the healing repair. These results suggest that development of formulations LNCCBC and LNCCBC+ are promising and important alternative for the treatment of dermal wounds, avoiding complications related to cutaneous lesions.
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Affiliation(s)
- Jader Pires
- Post-Graduation Program in Health Sciences, Faculty of Medical Sciences, Federal University of Mato Grosso, Cuiabá, Mato Grosso, Brazil
| | - Simone Tasca Cargnin
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Science, Federal University of Rio Grande do Sul, Brazil
| | - Suéllen Alves Costa
- Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Mato Grosso, Brazil
| | | | - Amílcar Sabino Damazo
- Post-Graduation Program in Health Sciences, Faculty of Medical Sciences, Federal University of Mato Grosso, Cuiabá, Mato Grosso, Brazil
| | - Adilson Paulo Sinhorin
- Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso, Sinop, Mato Grosso, Brazil
| | | | - Larissa Cavalheiro
- Institute of Natural, Human and Social Sciences, Federal University of Mato Grosso, Sinop, Mato Grosso, Brazil
| | | | - Adriana Raffin Pohlmann
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Science, Federal University of Rio Grande do Sul, Brazil
| | - Silvia Staniçuaski Guterres
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Science, Federal University of Rio Grande do Sul, Brazil
| | - Stela Regina Ferrarini
- Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Mato Grosso, Brazil.
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8
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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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9
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Assessment of unloaded polymeric nanocapsules with different coatings in female rats: Influence on toxicological and behavioral parameters. Biomed Pharmacother 2019; 121:109575. [PMID: 31689599 DOI: 10.1016/j.biopha.2019.109575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/09/2019] [Accepted: 10/21/2019] [Indexed: 11/20/2022] Open
Abstract
The unloaded polymeric nanocapsules (NCs) present incredible characteristics as drug carriers. However, the toxicity caused by NCs with different coatings is still a challenge for contemporary toxicology. Allied to this, preclinical studies are performed in males, disregarding possible gender-dependent toxicity. Thus, the aim of present study was to evaluate the influence of different NCs coatings on toxicological and behavioral parameters in female rats. The physicochemical characterization of NCs with different surface coatings: NC1 (Polysorbate 80), NC2 (PEG), NC3 (Eudragit®RS 100) and NC4 (Chitosan) were performed. Female rats were treated with saline, NC1, NC2, NC3 or NC4 daily for 14 days, p.o. After 24 h of last treatment, animals were submitted to behavioral tests. Only after behavioral tests, female rats were euthanized, organs were removed and weighted. After, histopathological, biochemical and oxidative stress analysis were performed. All NCs-coatings did not cause alterations in behavioral tests. For markers of hepatic, renal damage and lipid profile, the different coatings showed a low toxicity. NCs did not alter weight of organs and histopathological analysis. Also, all NCs-coatings did not modify redox balance in organs studied, only NC2 induced a increase of FRAP levels in intestine. This study demonstrated that the different NCs-coatings did not cause behavioral changes and showed a low toxicity in female rats.
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10
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Escrivani DO, Lopes MV, Poletto F, Ferrarini SR, Sousa-Batista AJ, Steel PG, Guterres SS, Pohlmann AR, Rossi-Bergmann B. Encapsulation in lipid-core nanocapsules improves topical treatment with the potent antileishmanial compound CH8. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102121. [PMID: 31672601 DOI: 10.1016/j.nano.2019.102121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 08/01/2019] [Accepted: 10/21/2019] [Indexed: 10/25/2022]
Abstract
Cutaneous leishmaniasis (CL) is a neglected parasitic disease conventionally treated by multiple injections with systemically toxic drugs. Aiming at a more acceptable therapy, we developed lipid-core nanocapsules (LNCs) entrapping the potent antileishmanial chalcone (CH8) for topical application. Rhodamine-labeled LNC (Rho-LNC-CH8) was produced for imaging studies. LNC-CH8 and Rho-LNC-CH8 had narrow size distributions (polydispersity index <0.10), with similar mean sizes (~180 nm) by dynamic light scattering. In vitro, Rho-LNC-CH8 was rapidly internalized by extracellular Leishmania amazonensis parasites macrophages in less than 15 min. LNC-CH8 activated macrophage oxidative mechanisms more efficiently than CH8, and was more selectively toxic against the intracellular parasites. In vivo, topically applied Rho-LNC-CH8 efficiently permeated mouse skin. In L. amazonensis-infected mice, LNC-CH8 reduced the parasite load by 86% after three weeks of daily topical treatment, while free CH8 was ineffective. In conclusion, LNC-CH8 has strong potential as a novel topical formulation for CL treatment.
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Affiliation(s)
- Douglas O Escrivani
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil.
| | - Milene Valéria Lopes
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil.
| | - Fernanda Poletto
- Departamento de Química Orgânica e Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Stela Regina Ferrarini
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Ariane J Sousa-Batista
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil.
| | | | - Sílvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Adriana Raffin Pohlmann
- Departamento de Química Orgânica e Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Bartira Rossi-Bergmann
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil.
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11
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Hort MA, Alves BDS, Ramires Júnior OV, Falkembach MC, Araújo GDMS, Fernandes CLF, Tavella RA, Bidone J, Dora CL, da Silva Júnior FMR. In vivo toxicity evaluation of nanoemulsions for drug delivery. Drug Chem Toxicol 2019; 44:585-594. [PMID: 31476915 DOI: 10.1080/01480545.2019.1659806] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Lipid nanocarriers (LNs), for example nanoemulsions (NE), are an emerging tool for drug delivery due to their ability to incorporate drugs, protect the drug from degradation, improve bioavailability, and control release. Although LNs are widely studied and applied, especially in the pharmaceutical field, knowledge about their toxicity is scarce. Moreover, the majority of studies focus on their efficiency rather than safety. Thus, the aim of this study was to evaluate the possible toxic effects of NE in vivo. Male Wistar rats (2 months old, 250 g) were treated once daily for 21 days with NE via oral or intraperitoneal delivery at 200, 400 or 800 mg lipid/kg body weight. At the end of the experiment, biochemical, hematological, oxidative stress, and genotoxicity parameters were analyzed. Our results showed that treatment with NE did not modify organ weight or biochemical parameters when compared to controls. The highest NE dose (800 mg/kg) via intraperitoneal injection caused changes in hematological parameters, namely increased plasma proteins, platelets, total leukocytes, and neutrophils, findings that suggest an inflammatory reaction. Further, the same dose evoked lipid peroxidation in the liver. Taken together, the results from this study suggest that NEs can be considered safe for oral administration, but high doses via the parenteral route can cause toxic effects. This study contributes to knowledge about NE toxicity and provides important data about their safe use in the pharmaceutical field.
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Affiliation(s)
- Mariana Appel Hort
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Barbara da Silva Alves
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Osmar Vieira Ramires Júnior
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Mariana Correa Falkembach
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Gabriela de Moraes Soares Araújo
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Caroline Lopes Feijo Fernandes
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Ronan Adler Tavella
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Juliana Bidone
- Departamento de Farmácia, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Cristiana Lima Dora
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Flavio Manoel Rodrigues da Silva Júnior
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
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12
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Pereira MP, de Gomes MG, Izoton JC, Nakama KA, Dos Santos RB, Pinto Savall AS, Ramalho JB, Roman SS, Luchese C, Cibin FW, Pinton S, Haas SE. Cationic and anionic unloaded polymeric nanocapsules: Toxicological evaluation in rats shows low toxicity. Biomed Pharmacother 2019; 116:109014. [PMID: 31146108 DOI: 10.1016/j.biopha.2019.109014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/05/2019] [Accepted: 05/21/2019] [Indexed: 01/23/2023] Open
Abstract
The experimental design aiming at evaluating the performance of drugs nanoencapsulated involves inclusion of a formulation without drug (unloaded). This formulation has sometimes presented per se effect. In this sense, we sought to evaluate the toxicity of unloaded polymeric nanocapsules (NCs) with different surfaces (cationic and anionic) in male Wistar rats in male Wistar rats. The physicochemical characterization of NCs with different surfaces: polysorbate 80 (P80), polyethylene glycol (PEG), eudragit ®RS 100 (EUD) and chitosan (CS) was performed. Rats were treated with unloaded NCs (P80, PEG, EUD and CS surfaces) daily for 14 days per oral route. 24 h of last treatment, animals were euthanized and organs were removed and weighted. After, biochemical determinations were performed. In general, NCs-surfaces did not cause alterations in body weight, weight of organs and histopathological analysis. PEG-surface NCs did not generate hepatotoxicity. In investigation of lipid profile, the surface with P80 changed TC and HDL-C levels. Besides that, all NCs did not alter oxidative stress markers in organs studied (TBARS and Reactive Species) and CS-surface presented antioxidant activity in kidney. This study demonstrated that NCs-surfaces depending on their physicochemical characteristics had low or no toxicity.
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Affiliation(s)
- Muriel Pando Pereira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Marcelo Gomes de Gomes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Jessica Cristina Izoton
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Kelly Ayumi Nakama
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Renata Bem Dos Santos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Anne Suely Pinto Savall
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Juliana Bernera Ramalho
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Silvane Souza Roman
- Universidade Regional Integrada do Alto Uruguai e das Missões, Campus Erechim, Erechim, Brazil
| | - Cristiane Luchese
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Francielli Weber Cibin
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Simone Pinton
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Sandra Elisa Haas
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil.
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13
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Nishihira VSK, Fontana BD, Ianiski FR, de Almeida HS, Posser CP, Dias JB, Parodi CB, Piva MM, Gris A, Mendes RE, Duarte MMMF, Sagrillo MR, Luchese C, Rech VC, Vaucher RA. PEGylated meloxicam-loaded nanocapsules reverse in vitro damage on caspase activity and do not induce toxicity in cultured human lymphocytes and mice. Biomed Pharmacother 2018; 107:1259-1267. [PMID: 30257340 DOI: 10.1016/j.biopha.2018.08.120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/22/2018] [Accepted: 08/23/2018] [Indexed: 01/30/2023] Open
Abstract
Meloxicam is an anti-inflammatory drug that has a potential protective effect in many common diseases. However, this molecule is quickly eliminated from the body due to it short half-life. One way to overcome this problem is to incorporate meloxicam into lipid-core nanocapsules which may increase it anti-inflammatory effects. In view of this, the objective of this work was to evaluate the potential toxicity and safety of these novel nanomaterials both in vitro and in vivo. Here, we evaluated the effects of uncoated meloxicam-loaded nanocapsules (M-NC), uncoated and not loaded with meloxicam or blank (B-NC), PEGylated meloxicam-loaded lipid-core nanocapsules (M-NCPEG), blank PEGylated lipid-core nanocapsules (B-NCPEG) and free meloxicam (M-F) in vitro through the analysis of cell viability, caspase activity assays and gene expression of perforin and granzyme B. Meanwhile, the in vivo safety was assessed using C57BL/6 mice that received nanocapsules for seven days. Thus, no change in cell viability was observed after treatments. Furthermore, M-NC, M-NCPEG and M-F groups reversed the damage caused by H2O2 on caspase-1, 3 and 8 activities. Overall, in vivo results showed a safe profile of these nanocapsules including hematological, biochemical, histological and genotoxicity analysis. In conclusion, we observed that meloxicam nanocapsules present a safe profile to use in future studies with this experimental protocol and partially reverse in vitro damage caused by H2O2.
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Affiliation(s)
- Vivian S K Nishihira
- Laboratório de Nanociências, Programa de Pós-Graduação em Nanociências, Centro de Ciências Tecnológicas, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Barbara D Fontana
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil.
| | - Francine R Ianiski
- Fundação Educacional Machado de Assis, Santa Rosa, CEP 98780-109, RS, Brazil
| | - Hemilaine S de Almeida
- Laboratório de Cultura Celular, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Christopher P Posser
- Laboratório de Cultura Celular, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Juliane B Dias
- Laboratório de Nanociências, Programa de Pós-Graduação em Nanociências, Centro de Ciências Tecnológicas, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Crystian B Parodi
- Laboratório de Nanociências, Programa de Pós-Graduação em Nanociências, Centro de Ciências Tecnológicas, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Manoela M Piva
- Bloco de Patologia Veterinária, Instituto Federal Catarinense, Concórdia, CEP 89700-000, SC, Brazil
| | - Anderson Gris
- Bloco de Patologia Veterinária, Instituto Federal Catarinense, Concórdia, CEP 89700-000, SC, Brazil
| | - Ricardo E Mendes
- Bloco de Patologia Veterinária, Instituto Federal Catarinense, Concórdia, CEP 89700-000, SC, Brazil
| | - Marta M M F Duarte
- Centro de Ciências da Saúde, Universidade Luterana, Canoas, CEP 92425-900, RS, Brazil
| | - Michele R Sagrillo
- Laboratório de Nanociências, Programa de Pós-Graduação em Nanociências, Centro de Ciências Tecnológicas, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil; Laboratório de Cultura Celular, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil
| | - Cristiane Luchese
- Programa de Pós-graduação em Bioquímica e Biopropecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Universidade Federal de Pelotas, RS, Brazil
| | - Virginia C Rech
- Laboratório de Nanociências, Programa de Pós-Graduação em Nanociências, Centro de Ciências Tecnológicas, Universidade Franciscana, Santa Maria, CEP 97010-032, RS, Brazil.
| | - Rodrigo A Vaucher
- Programa de Pós-graduação em Bioquímica e Biopropecção, Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Universidade Federal de Pelotas, RS, Brazil.
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14
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Karabasz A, Szczepanowicz K, Cierniak A, Bereta J, Bzowska M. In vitro toxicity studies of biodegradable, polyelectrolyte nanocapsules. Int J Nanomedicine 2018; 13:5159-5172. [PMID: 30233178 PMCID: PMC6135212 DOI: 10.2147/ijn.s169120] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Toxicity of nanomaterials is one of the most important factors limiting their medical application. Evaluation of in vitro nanotoxicity allows for the identification and elimination of most of the toxic materials prior to animal testing. The current knowledge of the possible side effects of biodegradable nanomaterials, such as liposomes and polymeric organic nanoparticles, is limited. Previously, we developed a potential drug delivery system in the form of nanocapsules with polyelectrolyte, biodegradable shells consisting of poly-l-lysine and poly-l-glutamic acid (PGA), formed by the layer-by-layer adsorption technique. Methods Hemolysis assay, viability tests, flow cytometry analysis of vascular cell adhesion molecule-1 expression on endothelium, analysis of nitric oxide production, measurement of intracellular reactive oxygen species levels, detection of antioxidant enzyme activity, and analysis of DNA damage with comet assay were performed to study the in vitro toxicity of nanocapsules. Results In this work, we present the results of an in vitro analysis of toxicity of five-layer positively charged poly-l-lysine–terminated nanocapsules (NC5), six-layer negatively charged PGA-terminated nanocapsules (NC6) and five-layer PEGylated nanocapsules (NC5-PEG). PGA and polyethylene glycol (PEG) were used as two different “stealth” polymers. Of all the polyelectrolyte nanocapsules tested for blood compatibility, only cationic NC5 showed acute toxicity toward blood cells, expressed as hemolysis and aggregation. Neither NC6 nor NC5-PEG had proinflammatory activity evaluated through changes in the expression of NF-κB–dependent genes, iNOS and vascular cell adhesion molecule-1, induced oxidative stress, or promoted DNA damage in various cells. Conclusion Our studies clearly indicate that PGA-coated (negatively charged) and PEGylated polyelectrolyte nanocapsules do not show in vitro toxicity, and their potential as a drug delivery system may be safely studied in vivo.
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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 Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland, .,Department of Biochemistry, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Kraków University, 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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15
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Remião MH, Segatto NV, Pohlmann A, Guterres SS, Seixas FK, Collares T. The Potential of Nanotechnology in Medically Assisted Reproduction. Front Pharmacol 2018; 8:994. [PMID: 29375388 PMCID: PMC5768623 DOI: 10.3389/fphar.2017.00994] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/26/2017] [Indexed: 12/16/2022] Open
Abstract
Reproductive medicine is a field of science which searches for new alternatives not only to help couples achieve pregnancy and preserve fertility, but also to diagnose and treat diseases which can impair the normal operation of the reproductive tract. Assisted reproductive technology (ART) is a set of methodologies applied to cases related to infertility. Despite being highly practiced worldwide, ART presents some challenges, which still require special attention. Nanotechnology, as a tool for reproductive medicine, has been considered to help overcome some of those impairments. Over recent years, nanotechnology approaches applied to reproductive medicine have provided strategies to improve diagnosis and increase specificity and sensitivity. For in vitro embryo production, studies in non-human models have been used to deliver molecules to gametes and embryos. The exploration of nanotechnology for ART would bring great advances. In this way, experiments in non-human models to test the development and safety of new protocols using nanomaterials are very important for informing potential future employment in humans. This paper presents recent developments in nanotechnology regarding impairments still faced by ART: ovary stimulation, multiple pregnancy, and genetic disorders. New perspectives for further use of nanotechnology in reproductive medicine studies are also discussed.
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Affiliation(s)
- Mariana H Remião
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Natalia V Segatto
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Adriana Pohlmann
- Post-graduation Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Silvia S Guterres
- Post-graduation Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabiana K Seixas
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
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Antonow MB, Franco C, Prado W, Beckenkamp A, Silveira GP, Buffon A, Guterres SS, Pohlmann AR. Arginylglycylaspartic Acid-Surface-Functionalized Doxorubicin-Loaded Lipid-Core Nanocapsules as a Strategy to Target Alpha(V) Beta(3) Integrin Expressed on Tumor Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 8:E2. [PMID: 29271920 PMCID: PMC5791089 DOI: 10.3390/nano8010002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 12/14/2017] [Accepted: 12/16/2017] [Indexed: 01/05/2023]
Abstract
Doxorubicin (Dox) clinical use is limited by dose-related cardiomyopathy, becoming more prevalent with increasing cumulative doses. Previously, we developed Dox-loaded lipid-core nanocapsules (Dox-LNC) and, in this study, we hypothesized that self-assembling and interfacial reactions could be used to obtain arginylglycylaspartic acid (RGD)-surface-functionalized-Dox-LNC, which could target tumoral cells overexpressing αvβ3 integrin. Human breast adenocarcinoma cell line (MCF-7) and human glioblastoma astrocytoma (U87MG) expressing different levels of αvβ3 integrin were studied. RGD-functionalized Dox-LNC were prepared with Dox at 100 and 500 mg·mL-1 (RGD-MCMN (Dox100) and RGD-MCMN (Dox500)). Blank formulation (RGD-MCMN) had z-average diameter of 162 ± 6 nm, polydispersity index of 0.11 ± 0.04, zeta potential of +13.2 ± 1.9 mV and (6.2 ± 1.1) × 1011 particles mL-1, while RGD-MCMN (Dox100) and RGD-MCMN (Dox500) showed respectively 146 ± 20 and 215 ± 25 nm, 0.10 ± 0.01 and 0.09 ± 0.03, +13.8 ± 2.3 and +16.4 ± 1.5 mV and (6.9 ± 0.6) × 1011 and (6.1 ± 1.0) × 1011 particles mL-1. RGD complexation was 7.73 × 10⁴ molecules per nanocapsule and Dox loading were 1.51 × 10⁴ and 7.64 × 10⁴ molecules per nanocapsule, respectively. RGD-functionalized nanocapsules had an improved uptake capacity by U87MG cells. Pareto chart showed that the cell viability was mainly affected by the Dox concentration and the period of treatment in both MCF-7 and U87MG. The influence of RGD-functionalization on cell viability was a determinant factor exclusively to U87MG.
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Affiliation(s)
- Michelli B Antonow
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
| | - Camila Franco
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
| | - Willian Prado
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brazil.
| | - Aline Beckenkamp
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
| | - Gustavo P Silveira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brazil.
| | - Andréia Buffon
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
| | - Sílvia S Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
| | - Adriana R Pohlmann
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000 RS, Brazil.
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brazil.
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17
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High doses of lipid-core nanocapsules do not affect bovine embryonic development in vitro. Toxicol In Vitro 2017; 45:194-201. [DOI: 10.1016/j.tiv.2017.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 09/03/2017] [Accepted: 09/14/2017] [Indexed: 01/26/2023]
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Pegoraro NS, Mattiazzi J, da Silveira EF, Azambuja JH, Braganhol E, Cruz L. Improved photostability and cytotoxic effect of coenzyme Q10 by its association with vitamin E acetate in polymeric nanocapsules. Pharm Dev Technol 2017; 23:400-406. [PMID: 28521578 DOI: 10.1080/10837450.2017.1332641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present study showed the development of nanocapsules containing the association of the coenzyme Q10 and vitamin E acetate and the evaluation of their effect on in vitro cells culture of malignant glioma and melanoma. In order to investigate if nanocapsules are able to protect coenzyme Q10 from degradation under UVC radiation, a photostability study was carried out. For this, three concentrations of vitamin E acetate were evaluated (1%, 2%, or 3%). Nanocapsules presented suitable physicochemical characteristics and were able to protect coenzyme Q10 from photodegradation. In addition, this protection was influenced by higher vitamin E acetate concentrations, attributing to this oil an important role on coenzyme Q10 photostabilization. Regarding to in vitro citotoxicity assay, nanocapsules containing coenzyme Q10 and 2% vitamin E significantly reduced glioma and melanoma cell viability in 61% and 66%, respectively. In this sense, these formulations represent interesting platforms for the delivery of coenzyme Q10 and vitamin E acetate, presenting effect on the reduction of malignant cells viability.
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Affiliation(s)
- Natháli S Pegoraro
- a Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brasil
| | - Juliane Mattiazzi
- a Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brasil
| | - Elita F da Silveira
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Universidade Federal de Pelotas , Pelotas , Brasil
| | - Juliana H Azambuja
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Universidade Federal de Pelotas , Pelotas , Brasil.,c Programa de Pós-Graduação em Biociências , Universidade Federal de Ciências da Saúde , Porto Alegre , Brasil
| | - Elizandra Braganhol
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção, Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Universidade Federal de Pelotas , Pelotas , Brasil.,c Programa de Pós-Graduação em Biociências , Universidade Federal de Ciências da Saúde , Porto Alegre , Brasil
| | - Letícia Cruz
- a Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brasil.,d Departamento de Farmácia Industrial , Universidade Federal de Santa Maria , Santa Maria , Brasil
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de Castro Jorge Silva A, Remirão MH, Lucas CG, Domingues WB, Silveira T, Paschoal JD, Jornada DS, Corcine CD, Junior ASV, Prado WA, Campos VF, Seixas FK, Guterres SS, Pohlmann AR, Collares T. Effects of chitosan-coated lipid-core nanocapsules on bovine sperm cells. Toxicol In Vitro 2017; 40:214-222. [DOI: 10.1016/j.tiv.2017.01.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 01/21/2017] [Accepted: 01/23/2017] [Indexed: 01/04/2023]
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20
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Menezes PDP, Frank LA, Lima BDS, de Carvalho YMBG, Serafini MR, Quintans-Júnior LJ, Pohlmann AR, Guterres SS, Araújo AADS. Hesperetin-loaded lipid-core nanocapsules in polyamide: a new textile formulation for topical drug delivery. Int J Nanomedicine 2017; 12:2069-2079. [PMID: 28352176 PMCID: PMC5358993 DOI: 10.2147/ijn.s124564] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Chronic venous insufficiency is characterized by chronic reflux disorder of blood from the peripheral to the central vein, with subsequent venous hypertension and resulting changes in the skin. Traditionally, nonsurgical treatments relied on the use of compression therapy, and more recently a variety of flavonoids have been shown to have positive effects. There have also been developments of more effective drug delivery systems using various textiles and nanotechnology to provide new therapeutic options. Our objective was to use nanotechnology to develop a new formulation containing hesperetin (Hst), a substance not previously used in the treatment of chronic venous insufficiency, impregnated into textile fibers as a possible alternative treatment of venous diseases. We prepared the nanocapsules using the interfacial deposition of preformed polymer method with an Hst concentration of 0.5 mg/mL and then characterized the size and distribution of particles. To quantify the Hst in the samples, we developed an analytical method using high-performance liquid chromatography. Studies of encapsulation efficiency (98.81%±0.28%), microscopy, drug release (free-Hst: 104.96%±12.83%; lipid-core nanocapsule-Hst: 69.90%±1.33%), penetration/permeation, drug content (0.46±0.01 mg/mL) and the effect of washing the textile after drug impregnation were performed as part of the study. The results showed that nanoparticles of a suitable size and distribution with controlled release of the drug and penetration/permeation into the skin layers were achieved. Furthermore, it was established that polyamide was able to hold more of the drug, with a 2.54 times higher content than the cotton fiber; after one wash and after five washes, this relation was 2.80 times higher. In conclusion, this is a promising therapeutic alternative to be further studied in clinical trials.
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Affiliation(s)
| | - Luiza Abrahão Frank
- College of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bruno Dos Santos Lima
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | | | - Mairim Russo Serafini
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | | | - Adriana Raffin Pohlmann
- Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Remião MH, Lucas CG, Domingues WB, Silveira T, Barther NN, Komninou ER, Basso AC, Jornada DS, Beck RCR, Pohlmann AR, Junior ASV, Seixas FK, Campos VF, Guterres SS, Collares T. Melatonin delivery by nanocapsules during in vitro bovine oocyte maturation decreased the reactive oxygen species of oocytes and embryos. Reprod Toxicol 2016; 63:70-81. [PMID: 27233482 DOI: 10.1016/j.reprotox.2016.05.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 04/23/2016] [Accepted: 05/20/2016] [Indexed: 12/25/2022]
Abstract
In this work, a promising approach to increase the advantageous properties of melatonin through its encapsulation into lipid-core nanocapsules (LNC) was examined. Oocytes were treated during in vitro maturation with non-encapsulated melatonin (Mel), melatonin-loaded lipid-core nanocapsules (Mel-LNC), and unloaded LNC. Cytotoxicity, meiotic maturation rate, development to the blastocyst stage, reactive oxygen species (ROS) and glutathione levels, mean cell number and apoptotic cell/blastocyst, and mRNA quantification were evaluated. Both Mel and Mel-LNC enhanced in vitro embryo production, however, Mel-LNC proved to be more effective at decreasing ROS levels and the apoptotic cell number/blastocyst, increasing the cleavage and blastocyst rates, up-regulating the GPX1 and SOD2 genes, and down-regulating the CASP3 and BAX genes. Mel-LNC could penetrate into oocytes and remain inside the cells until they reach the blastocyst stage. In conclusion, when melatonin was encapsulated in LNC and applied during in vitro oocyte maturation, some quality aspects of the blastocysts were improved.
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Affiliation(s)
- Mariana Härter Remião
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Caroline Gomes Lucas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - William Borges Domingues
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Tony Silveira
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Nathaniele Nebel Barther
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Eliza Rossi Komninou
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | | | - Denise Soledade Jornada
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Ruy Carlos Ruver Beck
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Adriana Raffin Pohlmann
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, RS, Brazil
| | - Antonio Sérgio Varela Junior
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Universidade Federal do Rio Grande, Rio Grande 96201-900, RS, Brazil
| | - Fabiana Kömmling Seixas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Vinicius Farias Campos
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil
| | - Silvia Stanisçuaski Guterres
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, RS, Brazil
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010-900 RS, Brazil.
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22
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Immune cell impact of three differently coated lipid nanocapsules: pluronic, chitosan and polyethylene glycol. Sci Rep 2016; 6:18423. [PMID: 26728491 PMCID: PMC4700454 DOI: 10.1038/srep18423] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 11/09/2015] [Indexed: 12/23/2022] Open
Abstract
Lipid nanocapsules (NCs) represent promising tools in clinical practice for diagnosis and therapy applications. However, the NC appropriate functionalization is essential to guarantee high biocompatibility and molecule loading ability. In any medical application, the immune system-impact of differently functionalized NCs still remains to be fully understood. A comprehensive study on the action exerted on human peripheral blood mononuclear cells (PBMCs) and major immune subpopulations by three different NC coatings: pluronic, chitosan and polyethylene glycol-polylactic acid (PEG) is reported. After a deep particle characterization, the uptake was assessed by flow-cytometry and confocal microscopy, focusing then on apoptosis, necrosis and proliferation impact in T cells and monocytes. Cell functionality by cell diameter variations, different activation marker analysis and cytokine assays were performed. We demonstrated that the NCs impact on the immune cell response is strongly correlated to their coating. Pluronic-NCs were able to induce immunomodulation of innate immunity inducing monocyte activations. Immunomodulation was observed in monocytes and T lymphocytes treated with Chitosan-NCs. Conversely, PEG-NCs were completely inert. These findings are of particular value towards a pre-selection of specific NC coatings depending on biomedical purposes for pre-clinical investigations; i.e. the immune-specific action of particular NC coating can be excellent for immunotherapy applications.
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Fracasso R, Baierle M, Goëthel G, Barth A, Freitas F, Nascimento S, Altknecht L, Olsen V, Paese K, da Silva VD, Castro I, Andrades M, Clausell N, Pohlmann A, Guterres S, Garcia SC. Evaluation of potential acute cardiotoxicity of biodegradable nanocapsules in rats by intravenous administration. Toxicol Res (Camb) 2016; 5:168-179. [PMID: 30090335 PMCID: PMC6061661 DOI: 10.1039/c5tx00207a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 10/01/2015] [Indexed: 11/21/2022] Open
Abstract
Nanotoxicology aims to study the safety of nanomaterials, especially towards human exposure. Biodegradable polymeric nanocapsules have been indicated as potential drug carriers applicable for treating several pathologies. Thus, the objective of this study was to evaluate the potential cardiotoxicity of biodegradable lipid-core nanocapsules (LNC) containing poly(ε-caprolactone). Nanocapsules were characterized and the acute toxicity evaluation was conducted in Wistar rats. Two control groups (saline and tween/glycerol) were utilized, and three treated groups were chosen for low, intermediate and high doses: 28.7 × 1012 (LNC-1), 57.5 × 1012 (LNC-2) and 115 × 1012 (LNC-3), expressed as number of nanocapsules per milliliter per kg. Blood pressure measurements were performed in non-anesthetized animals by caudal plethysmography. The electrocardiographic (ECG) and echocardiographic analyses were carried out after anesthesia by isoflurane at two points, prior to treatment and after 14 days. Blood was collected 24 hours and 14 days after treatment. Biochemical and histopathological analyses were performed. During the evaluation period, no deaths, weight loss or clinical signs were observed. Post-treatment systolic pressures (24 h and 14 days) were significantly increased in comparison to pre-treatment in both control groups and treated groups, which is suggested to be as a possible consequence of the infused volume. Serum sodium, potassium, aspartate aminotransferase and alkaline phosphatase, as well as, hematological parameters were within reference values established for rats. ECG showed no indications of cardiotoxicity. Despite the echocardiograms, no alterations in the ejection fraction were found as indicators of cardiotoxicity. Cardiac histopathology also demonstrated no alterations. Therefore, the present results on acute evaluation after i.v. administration, by slow infusion, showed potential safety since no cardiotoxic effects by ECG, echocardiographic, arterial pressure, biochemical and histopathological analyses were found.
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Affiliation(s)
- Rafael Fracasso
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Marília Baierle
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Gabriela Goëthel
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Anelise Barth
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Fernando Freitas
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
| | - Sabrina Nascimento
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Louise Altknecht
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
| | - Virgilio Olsen
- Division of Cardiology (Cardiolab) , Research Center , Hospital de Clínicas de Porto Alegre. Federal University of Rio Grande do Sul , 90035003 , Porto Alegre , RS , Brazil
| | - Karina Paese
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
- Department of Production and Control of Drugs , Faculty of Pharmacy , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Vinicius Duval da Silva
- Department of Pathology , Catholic University of Rio Grande do Sul , 90619900 , Porto Alegre , RS , Brazil
| | - Iran Castro
- Institute of Cardiology , University Cardiology Foundation , 90620000 , Porto Alegre , Brazil
| | - Michael Andrades
- Division of Cardiology (Cardiolab) , Research Center , Hospital de Clínicas de Porto Alegre. Federal University of Rio Grande do Sul , 90035003 , Porto Alegre , RS , Brazil
| | - Nadine Clausell
- Division of Cardiology (Cardiolab) , Research Center , Hospital de Clínicas de Porto Alegre. Federal University of Rio Grande do Sul , 90035003 , Porto Alegre , RS , Brazil
| | - Adriana Pohlmann
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
- Department of Organic Chemistry , Institute of Chemistry , Federal University of Rio Grande do Sul , 91501970 , Porto Alegre , Brazil
| | - Silvia Guterres
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
- Department of Production and Control of Drugs , Faculty of Pharmacy , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX) , Department of Analysis , Pharmacy Faculty , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil .
- Post-graduate Program in Pharmaceutical Sciences (PPGCF) , Federal University of Rio Grande do Sul , 90610000 Porto Alegre , RS , Brazil
- Institute of Cardiology , University Cardiology Foundation , 90620000 , Porto Alegre , Brazil
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Boechat AL, de Oliveira CP, Tarragô AM, da Costa AG, Malheiro A, Guterres SS, Pohlmann AR. Methotrexate-loaded lipid-core nanocapsules are highly effective in the control of inflammation in synovial cells and a chronic arthritis model. Int J Nanomedicine 2015; 10:6603-14. [PMID: 26543364 PMCID: PMC4622525 DOI: 10.2147/ijn.s85369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is the most common autoimmune disease in the word, affecting 1% of the population. Long-term prognosis in RA was greatly improved following the introduction of highly effective medications such as methotrexate (MTX). Despite the importance of this drug in RA, 8%-16% of patients must discontinue the treatment because of adverse effects. Last decade, we developed a promising new nanocarrier as a drug-delivery system, lipid-core nanocapsules. OBJECTIVE The aim of the investigation reported here was to evaluate if methotrexate-loaded lipid-core nanocapsules (MTX-LNC) reduce proinflammatory and T-cell-derived cytokines in activated mononuclear cells derived from RA patients and even in functional MTX-resistant conditions. We also aimed to find out if MTX-LNC would reduce inflammation in experimentally inflammatory arthritis at lower doses than MTX solution. METHODS Formulations were prepared by self-assembling methodology. The adjuvant arthritis was induced in Lewis rats (AIA) and the effect on edema formation, TNF-α levels, and interleukin-1 beta levels after treatment was evaluated. Mononuclear cells obtained from the synovial fluid of RA patients during articular infiltration procedures were treated with MTX solution and MTX-LNC. For in vitro experiments, the same dose of MTX was used in comparing MTX and MTX-LNC, while the dose of MTX in the MTX-LNC was 75% lower than the drug in solution in in vivo experiments. RESULTS Formulations presented nanometric and unimodal size distribution profiles, with D[4.3] of 175±17 nm and span of 1.6±0.2. Experimental results showed that MTX-LNC had the same effect as MTX on arthritis inhibition on day 28 of the experiment (P<0.0001); however, this effect was achieved earlier, on day 21 (P<0.0001), by MTX-LNC, and this formulation had reduced both TNF-α (P=0.001) and IL-1α (P=0.0002) serum levels by the last day of the experiment. Further, the MTX-LNC were more effective at reducing the cytokine production from mononuclear synovial cells than MTX. CONCLUSION The MTX-LNC were better than the MTX solution at reducing proinflammatory cytokines and T-cell-derived cytokines such as interferon-gamma and interleukin-17A. This result, combined with the reduction in the dose required for therapy, shows that MTX-LNC are a very promising system for the treatment of RA.
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Affiliation(s)
- Antônio Luiz Boechat
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil ; Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | | | - Andrea Monteiro Tarragô
- Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - Allyson Guimarães da Costa
- Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - Adriana Malheiro
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil ; Programa de Pós-Graduação e Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | | | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Porto Alegre, Brazil ; Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Charão MF, Souto C, Brucker N, Barth A, Jornada DS, Fagundez D, Ávila DS, Eifler-Lima VL, Guterres SS, Pohlmann AR, Garcia SC. Caenorhabditis elegans as an alternative in vivo model to determine oral uptake, nanotoxicity, and efficacy of melatonin-loaded lipid-core nanocapsules on paraquat damage. Int J Nanomedicine 2015; 10:5093-106. [PMID: 26300641 PMCID: PMC4536844 DOI: 10.2147/ijn.s84909] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Caenorhabditis elegans is an alternative in vivo model that is being successfully used to assess the pharmacological and toxic effects of drugs. The exponential growth of nanotechnology requires the use of alternative in vivo models to assess the toxic effects of theses nanomaterials. The use of polymeric nanocapsules has shown promising results for drug delivery. Moreover, these formulations have not been used in cases of intoxication, such as in treatment of paraquat (PQ) poisoning. Thus, the use of drugs with properties improved by nanotechnology is a promising approach to overcome the toxic effects of PQ. This research aimed to evaluate the absorption of rhodamine B-labeled melatonin (Mel)-loaded lipid-core nanocapsules (LNC) by C. elegans, the application of this model in nanotoxicology, and the protection of Mel-LNC against PQ damage. The formulations were prepared by self-assembly and characterized by particle sizing, zeta potential, drug content, and encapsulation efficiency. The results demonstrated that the formulations had narrow size distributions. Rhodamine B-labeled Mel-LNC were orally absorbed and distributed in the worms. The toxicity assessment of LNC showed a lethal dose 50% near the highest dose tested, indicating low toxicity of the nanocapsules. Moreover, pretreatment with Mel-LNC significantly increased the survival rate, reduced the reactive oxygen species, and maintained the development in C. elegans exposed to PQ compared to those worms that were either untreated or pretreated with free Mel. These results demonstrated for the first time the uptake and distribution of Mel-LNC by a nematode, and indicate that while LNC is not toxic, Mel-LNC prevents the effects of PQ poisoning. Thus, C. elegans may be an interesting alternative model to test the nanocapsules toxicity and efficacy.
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Affiliation(s)
- Mariele Feiffer Charão
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Laboratory of Toxicology (LATOX), Department of Analysis, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Caroline Souto
- Laboratory of Toxicology (LATOX), Department of Analysis, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Natália Brucker
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Laboratory of Toxicology (LATOX), Department of Analysis, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Anelise Barth
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Laboratory of Toxicology (LATOX), Department of Analysis, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Denise S Jornada
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Department of Production and Control of Drugs, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Daiandra Fagundez
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCE), Federal University of Pampa - UNIPAMPA, Uruguaiana, RS, Brazil
| | - Daiana Silva Ávila
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCE), Federal University of Pampa - UNIPAMPA, Uruguaiana, RS, Brazil
| | - Vera L Eifler-Lima
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Laboratory of Medical Synthesis Organic (LaSOM), Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Silvia S Guterres
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Department of Production and Control of Drugs, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Adriana R Pohlmann
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Department of Organic Chemistry, Chemistry Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Solange Cristina Garcia
- Post-Graduate Programme in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil ; Laboratory of Toxicology (LATOX), Department of Analysis, Pharmacy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, 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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Improving drug biological effects by encapsulation into polymeric nanocapsules. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 7:623-39. [DOI: 10.1002/wnan.1334] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 12/10/2014] [Accepted: 12/15/2014] [Indexed: 12/11/2022]
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Bulcão RP, Bubols GB, Nascimento SN, Gauer B, Sauer E, Baierle M, Charão MF, Moro A, Brucker N, Bruinsmann FA, Schnorr C, Moreira JCF, Pohlmann AR, Guterres SS, Garcia SC. Do poly(epsilon-caprolactone) lipid-core nanocapsules induce oxidative or inflammatory damage after in vivo subchronic treatment? Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00030k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Among the toxicity mechanisms linked to nanoparticles (NPs), oxidative stress (OS) and inflammation are, in general, presumed to mediate their toxicological responses.
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Peixe TS, Souza Nascimento ED, Schofield KL, Arcuri ASA, Bulcão RP. Nanotoxicology and Exposure in the Occupational Setting. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/odem.2015.33005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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de Campos Rasteiro VM, da Costa ACBP, Araújo CF, de Barros PP, Rossoni RD, Anbinder AL, Jorge AOC, Junqueira JC. Essential oil of Melaleuca alternifolia for the treatment of oral candidiasis induced in an immunosuppressed mouse model. Altern Ther Health Med 2014; 14:489. [PMID: 25510285 PMCID: PMC4301879 DOI: 10.1186/1472-6882-14-489] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 12/10/2014] [Indexed: 11/30/2022]
Abstract
Background The search for alternative therapies for oral candidiasis is a necessity and the use of medicinal plants seems to be one of the promising solutions. The objective of this study was to evaluate the in vitro and in vivo effects of the essential oil of Melaleuca alternifolia on Candida albicans. Methods The minimum inhibitory concentration (MIC) and minimum biofilm eradication concentration (MBEC) of M. alternifolia were determined by the broth microdilution assay. For the in vivo study, twelve immunosuppressed mice with buccal candidiasis received topical applications of M. alternifolia with MBEC. After treatment, yeasts were recovered from the mice and quantified (CFU/mL). Mice were killed for morphologic analysis of the tongue dorsum by optical and scanning electron microscopy. Data were analyzed using Student’s t test or Mann-Whitney test. Results The MIC of M. alternifolia was 0.195% and the MBEC was 12.5%. Treatment with M. alternifolia achieved a 5.33 log reduction in C. albicans and reduced the microscopic lesions of candidiasis. Conclusions M. alternifolia oil at a 12.5% was effective to eradicate a C. albicans biofilm formed in vitro and to reduce yeasts of C. albicans in an immunosuppressed mouse model.
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Janeesh PA, Sami H, Dhanya CR, Sivakumar S, Abraham A. Biocompatibility and genotoxicity studies of polyallylamine hydrochloride nanocapsules in rats. RSC Adv 2014. [DOI: 10.1039/c4ra02418d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
PAH nanocapsule studies in rats showed that it is biocompatible and nongenotoxic for furtherin vivodrug-delivery studies.
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Affiliation(s)
- P. A. Janeesh
- School of Life Sciences
- Department of Biochemistry
- University of Kerala
- , India
| | - Haider Sami
- Department of Biological Sciences and Bioengineering
- Indian Institute of Technology Kanpur
- , India
| | - C. R. Dhanya
- School of Life Sciences
- Department of Biochemistry
- University of Kerala
- , India
| | - Sri Sivakumar
- Department of Chemical Engineering
- Unit of Excellence on Soft Nanofabrication
- Material Science Programme
- Institute of Technology Kanpur
- , India
| | - Annie Abraham
- School of Life Sciences
- Department of Biochemistry
- University of Kerala
- , India
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