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Speck ML, Gomes ALA, Rojas CS, Willig JB, Herrmann AP, Pilger DA, Rates SMK. Environmental enrichment affects behavioral and pharmacological response to antidepressants in CF1 mice. Neurosci Lett 2023; 813:137432. [PMID: 37549865 DOI: 10.1016/j.neulet.2023.137432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
It has been described that environmental enrichment (EE) exerts beneficial effects on cognitive and emotional performances, dendritic branching, synaptic density, neurogenesis and modulation of neurotrophic systems and neurotransmitters in rodents. However, the influence of EE on pharmacological and behavioral responses in animal models of psychiatric disorders has not been fully established. In this context, the aim of this study was to evaluate the influence of exposure to EE on mice behavior in the open field test (OFT) and forced swimming tests (FST), as well as the response to antidepressant drugs (fluoxetine 30 mg/kg and bupropion 30 mg/kg, p.o.). CF1 mice were exposed to an enriched housing condition at different developmental stages: from mating to postnatal day (PND) 55 (lifelong enrichment), from mating to PND21 (perinatal enrichment) and from PND21 to PND55 (post-weaning enrichment). At PND58 the male offspring were evaluated in the OFT and FST. BDNF gene expression in the hippocampus was determined through qPCR. Mice exposed to perinatal enrichment remained longer in the peripheral zone of the OFT and performed fewer grooming than mice housed under standard condition, and these effects were independent of drug treatment. Post-weaning and lifelong enrichment increased grooming behavior. Bupropion reduced grooming in all groups except in perinatal enriched. In turn, fluoxetine decreased grooming only in post-weaning enriched group. None of the enriched housing conditions altered the immobility time in the FST, which indicates that EE had no antidepressant-like effect. However, all enriched housing conditions abolished the anti-immobility effect of bupropion. None of the EE protocols affected BDNF hippocampal expression. The main conclusion is that mice behavior in the OFT is sensitive to alterations in the housing environment and depends on the developmental stage of exposure. Bupropion and fluoxetine yielded divergent responses depending on the housing condition, which suggests that EE modulates monoaminergic neurotransmission pathways.
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Affiliation(s)
- Marta Lorena Speck
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil
| | - Ana Luiza Azevedo Gomes
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil
| | - Camila Schafer Rojas
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil
| | - Julia Biz Willig
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil
| | - Ana Paula Herrmann
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics. Federal University of: Rio Grande do Sul. Rua Ramiro Barcelos, 2600, Porto Alegre, RS ZIP CODE 90035003, Brazil.
| | - Diogo André Pilger
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil.
| | - Stela Maris Kuze Rates
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul. Avenida Ipiranga, 2752, Porto Alegre, RS ZIP CODE 90610000, Brazil.
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Willig JB, de Couto NMG, Vianna DRB, Mariot CDS, Gnoatto SCB, Buffon A, Pilger DA. Betulinic Acid-Brosimine B Hybrid Compound Has a Synergistic Effect with Imatinib in Chronic Myeloid Leukemia Cell Line, Modulating Apoptosis and Autophagy. Pharmaceuticals (Basel) 2023; 16:ph16040586. [PMID: 37111343 PMCID: PMC10142704 DOI: 10.3390/ph16040586] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative disease characterized by the formation of the BCR-ABL (breakpoint cluster region-Abelson) oncoprotein. As many patients display therapeutic resistance, the development of new drugs based on semisynthetic products represents a new potential therapeutic approach for treating the disease. In this study, we investigated the cytotoxic activity, possible mechanism of action of a hybrid compound of betulinic acid (BA) and brosimine B in CML cell lines that are sensitive (K-562) and resistant (K-562R) to imatinib, in addition to evaluating lower doses of imatinib in combination with the hybrid compound. The effects of the compound, and its combination with imatinib, on apoptosis, cell cycle, autophagy and oxidative stress were determined. The compound was cytotoxic in K-562 (23.57 ± 2.87 μM) and K-562R (25.80 ± 3.21 μM) cells, and a synergistic effect was observed when it was associated with imatinib. Apoptosis was mediated by the caspase 3 and 9 intrinsic pathway, and cell cycle evaluation showed arrest at G0/G1. In addition, the hybrid compound increased the production of reactive oxygen species and induced autophagy by increasing LC3II and Beclin-1 mRNA levels. Results suggest that this hybrid compound causes the death of both imatinib-sensitive and -resistant cell lines and may hold potential as a new anticancer treatment against CML.
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Affiliation(s)
- Julia Biz Willig
- Post-Graduation of Pharmaceutical Science Program, Faculty of Farmacy, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
- Laboratory Biochemical and Cytological Analysis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Nádia Miléo Garcês de Couto
- Post-Graduation of Pharmaceutical Science Program, Faculty of Farmacy, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
- Laboratory of Phytochemistry and Organic Synthesis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Débora Renz Barreto Vianna
- Post-Graduation of Pharmaceutical Science Program, Faculty of Farmacy, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
- Laboratory Biochemical and Cytological Analysis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Camila da Silveira Mariot
- Laboratory Biochemical and Cytological Analysis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Simone Cristina Baggio Gnoatto
- Post-Graduation of Pharmaceutical Science Program, Faculty of Farmacy, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
- Laboratory of Phytochemistry and Organic Synthesis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Andréia Buffon
- Laboratory Biochemical and Cytological Analysis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Diogo André Pilger
- Post-Graduation of Pharmaceutical Science Program, Faculty of Farmacy, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
- Laboratory Biochemical and Cytological Analysis, Federal University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil
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Wink PL, Volpato FCZ, Monteiro FL, Willig JB, Zavascki AP, Barth AL, Martins AF. First identification of SARS-CoV-2 lambda (C.37) variant in Southern Brazil. Infect Control Hosp Epidemiol 2022; 43:1996-1997. [PMID: 34470685 PMCID: PMC8564022 DOI: 10.1017/ice.2021.390] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 06/30/2021] [Accepted: 06/30/2021] [Indexed: 01/14/2023]
Affiliation(s)
- Priscila Lamb Wink
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fabiana Caroline Zempulski Volpato
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Francielle Liz Monteiro
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico Molecular, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
| | - Julia Biz Willig
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
| | - Alexandre Prehn Zavascki
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Infectious Diseases Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Internal Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Afonso Luís Barth
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Andreza Francisco Martins
- LABRESIS – Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Bioinformatic Core, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas, Universidade Federal do Rio Grande do Sul, Brazil
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Zavascki AP, Vieceli T, Wink PL, Volpato FCZ, Monteiro FL, Willig JB, Ferreira CF, Arns B, Magalhães Costa GO, de Souza Niches M, Martins AF, Barth AL. Evaluation of Clinical Course of Gamma (P.1) Variant of Concern versus Lineages in Hospitalized Patients with COVID-19 in a Reference Center in Brazil. Am J Trop Med Hyg 2022; 107:245-251. [PMID: 35895420 PMCID: PMC9393469 DOI: 10.4269/ajtmh.21-1264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/23/2022] [Indexed: 11/11/2022] Open
Abstract
The SARS-CoV-2 variant of concern (VOC) gamma (P.1) has increased transmissibility and resulted in elevated hospitalization and mortality rates in Brazil. We investigated the clinical course of COVID-19 caused by gamma and non-VOCs at a reference hospital in Brazil in a retrospective cohort study with nonelderly hospitalized patients from two periods, before and after the emergence of gamma. Cohort 1 included patients from both periods whose samples would be eligible for whole-genome sequencing (WGS). Cohort 2 was composed of randomly selected patients from Cohort 1 whose samples were submitted to WGS. A total of 433 patients composed Cohort 1: 259 from the first and 174 from the second period. Baseline characteristics were similar, except for a higher incidence of severe distress respiratory syndrome at admission in patients from the second period. Patients from the second period had significantly higher incidence rates of advanced respiratory support (adjusted hazard ratio [aHR]: 2.04; 95% confidence interval [CI], 1.60-2.59), invasive ventilatory support (aHR: 2.72; 95% CI: 2.05-3.62), and 28-day mortality from the onset of symptoms (aHR: 2.62; 95% CI: 1.46-4.72). A total of 86 (43 gamma and 43 non-gamma) patients composed Cohort 2. Patients with confirmed gamma VOC infections had higher advanced ventilatory support and mortality rates than non-gamma-infected patients. Our study suggests that non-elderly patients hospitalized for COVID-19 in the second period (used as a proxy of gamma infection) had a more severe clinical course. This might have contributed to higher hospitalization and death rates observed in the second wave in Brazil.
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Affiliation(s)
- Alexandre P. Zavascki
- Infectious Diseases Service, Hospital de Clínicas de Porto Alegre, Brazil
- Internal Medicine Department, Universidade Federal do Rio Grande do Sul, Brazil
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Tarsila Vieceli
- Infectious Diseases Service, Hospital de Clínicas de Porto Alegre, Brazil
| | - Priscila Lamb Wink
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabiana Caroline Zempulski Volpato
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Francielle Liz Monteiro
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico Molecular, Universidade Franciscana, Santa Maria, Brazil
| | - Julia Biz Willig
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Charles Francisco Ferreira
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Beatriz Arns
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - Andreza Francisco Martins
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Bioinformatic Core, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Afonso Luís Barth
- LABRESIS—Laboratório de Pesquisa em Resistência Bacteriana, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Laboratório de Diagnóstico de SARS-CoV-2, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Wink PL, Volpato F, Lima-Morales DD, Paiva RM, Willig JB, Bock H, Paris FD, Barth AL. RT-qPCR half-reaction optimization for the detection of SARS-CoV-2. Rev Soc Bras Med Trop 2021; 54:e03192020. [PMID: 34932760 PMCID: PMC8687447 DOI: 10.1590/0037-8682-0319-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 10/06/2021] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION: The main laboratory test for the diagnosis of coronavirus disease 2019 (COVID-19) is the reverse transcription real-time polymerase chain reaction (RT-qPCR). However, RT-qPCR is expensive because of the number of tests required. This study aimed to evaluate an alternative to the RT-qPCR approach for the detection of sudden acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that is half of the total volume currently recommended by the US Centers for Disease Control and Prevention. METHODS: The analytical limit of detection (LoD) and the reaction efficiency using half volumes of the RT-qPCR assay were evaluated for the N1 and N2 regions using a synthetic control RNA. A panel of 76 SARS-CoV-2-positive and 26 SARS-CoV-2-negative clinical samples was evaluated to establish clinical sensitivity and specificity. RESULTS: The RT-qPCR assay efficiency was 105% for the half and standard reactions considering the N2 target and 84% (standard) and 101% (half) for N1. The RT-qPCR half-reaction LoD for N1 and N2 were 20 and 80 copies/µL, respectively. The clinical sensitivity and specificity were 100%. The half reaction presented a decrease of up to 5.5 cycle thresholds compared with standard RT-qPCR. CONCLUSIONS: The use of the RT-qPCR half-reaction proved feasible and economic for the detection of SARS-CoV-2 RNA.
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Affiliation(s)
- Priscila Lamb Wink
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Pesquisa em Resistência Bacteriana, Porto Alegre, RS, Brasil.,Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil.,Universidade Federal do Rio Grande do Sul, Faculdade de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Porto Alegre, RS, Brasil
| | - Fabiana Volpato
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Pesquisa em Resistência Bacteriana, Porto Alegre, RS, Brasil.,Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brasil
| | - Daiana de Lima-Morales
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Pesquisa em Resistência Bacteriana, Porto Alegre, RS, Brasil.,Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil
| | - Rodrigo Minuto Paiva
- Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil
| | - Julia Biz Willig
- Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil.,Hospital de Clínicas de Porto Alegre, Programa de Residência Multiprofissional, Porto Alegre, RS, Brasil
| | - Hugo Bock
- Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil
| | - Fernanda de Paris
- Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil
| | - Afonso Luís Barth
- Hospital de Clínicas de Porto Alegre, Centro de Pesquisa Experimental, Laboratório de Pesquisa em Resistência Bacteriana, Porto Alegre, RS, Brasil.,Hospital de Clínicas de Porto Alegre, Laboratório de Diagnóstico de SARS-CoV-2, Porto Alegre, RS, Brasil.,Universidade Federal do Rio Grande do Sul, Faculdade de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Porto Alegre, RS, Brasil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brasil
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Krieser K, Emanuelli J, Daudt RM, Bilatto S, Willig JB, Guterres SS, Pohlmann AR, Buffon A, Correa DS, Külkamp-Guerreiro IC. Taste-masked nanoparticles containing Saquinavir for pediatric oral administration. Mater Sci Eng C Mater Biol Appl 2020; 117:111315. [PMID: 32919675 DOI: 10.1016/j.msec.2020.111315] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/04/2020] [Accepted: 07/20/2020] [Indexed: 11/17/2022]
Abstract
This research has aimed to improve the stability and taste-masking properties by developing nanostructured dosage forms containing Saquinavir. Liquid formulations were developed using Eudragit RS100® and Pullulan as polymers. The physicochemical characteristics, stability, in vitro drug release, morphology, mucoadhesion and taste masking capacity were evaluated. The Saquinavir-nanoparticles had average diameters between 136 and 158 nm, with a Span below 1.4. These formulations presented a drug content above 80%, a high encapsulation efficiency (>97%), slightly acidic pH levels, low dynamic viscosity and controlled drug release. Electron microscopy revealed irregular spherical nanoparticles. The formulations prepared with higher amounts of Eudragit RS100® had greater mucoadhesion. Both polymers were able to improve drug stabilization, taste-masking properties and protection against drug cytotoxicity. The Saquinavir-nanoparticles exhibited stability and control releasing properties, thus making it a promising liquid dosage form with taste-masking properties intended for application in pediatric treatment.
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Affiliation(s)
- Katherine Krieser
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2572, Porto Alegre, RS 90610-000, Brazil
| | - Juliana Emanuelli
- Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Avenida Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Renata Moschini Daudt
- Departamento de Engenharia Química, UFRGS, Rua Engenheiro Luiz Englert s/n, Porto Alegre, RS 90040-040, Brazil
| | - Stanley Bilatto
- Laboratório Nacional de Nanotecnologia para o Agronegócio (LNNA), Embrapa Instrumentação, 13560-970 São Carlos, São Paulo, Brazil
| | - Julia Biz Willig
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2572, Porto Alegre, RS 90610-000, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Avenida Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Silvia Stanisçuaski Guterres
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2572, Porto Alegre, RS 90610-000, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Avenida Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Avenida Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil.; Departamento de Química Orgânica, Instituto de Química, UFRGS, CP15003, Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501-970, Brazil
| | - Andréia Buffon
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2572, Porto Alegre, RS 90610-000, Brazil
| | - Daniel Souza Correa
- Laboratório Nacional de Nanotecnologia para o Agronegócio (LNNA), Embrapa Instrumentação, 13560-970 São Carlos, São Paulo, Brazil
| | - Irene Clemes Külkamp-Guerreiro
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2572, Porto Alegre, RS 90610-000, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, UFRGS, Avenida Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil..
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Willig JB, Vianna DRB, Beckenkamp A, Beckenkamp LR, Sévigny J, Wink MR, Buffon A, Pilger DA. Imatinib mesylate affects extracellular ATP catabolism and expression of NTPDases in a chronic myeloid leukemia cell line. Purinergic Signal 2020; 16:29-40. [PMID: 31955347 PMCID: PMC7166234 DOI: 10.1007/s11302-019-09686-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 12/29/2019] [Indexed: 12/16/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm, characterized by the occurrence of the t(9;22)(q34;q11) translocation. First-line therapy for CML consists of treatment with imatinib mesylate, which selectively inhibits the BCR-ABL protein by competing for its ATP-binding site. Adenine nucleotide signaling is modulated by the ectonucleotidases and this pathway is related to tumorigenic processes. Considering the relationship between ATP and cancer, we aimed to evaluate the influence of imatinib mesylate on the expressions and functions of the NTPDase and ecto-5'-nucleotidase (CD73) enzymes in imatinib-sensitive and -resistant K-562 cell lines. mRNA analysis showed that K-562 cells express all ENTPDs and NT5E. However, when treated with imatinib mesylate for 24 h, the expression of ENTPD1, -2, -3 and -5 increased, leading to a higher nucleotides hydrolysis rate. HPLC analysis identified increased ATP degradation in cells after 24 h of treatment, with consequent ADP and AMP formation, corroborating the increase in gene and protein expression of ectonucleotidases as observed in previous results. On the other hand, we observed that imatinib-resistant K-562 cells presented a decrease in nucleotide hydrolysis and expressions of ENTPD1 and -5. These results suggest an involvement of imatinib in modulating ectonucleotidases in CML that will need further investigation. Since these ectonucleotidases have important catalytic activities in the tumor microenvironment, their modulation in CML cells may represent an important therapeutic approach to regulate levels of extracellular adenine nucleotides.
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Affiliation(s)
- Julia Biz Willig
- Faculty of Farmacy, Program for Post-graduation in Pharmaceutical Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Biochemical and Cytological Analyses, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Bairro Santana, Porto Alegre, Rio Grande do Sul, CEP 90610-000, Brazil
| | - Débora Renz Barreto Vianna
- Faculty of Farmacy, Program for Post-graduation in Pharmaceutical Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Laboratory of Biochemical and Cytological Analyses, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Bairro Santana, Porto Alegre, Rio Grande do Sul, CEP 90610-000, Brazil
| | - Aline Beckenkamp
- Faculty of Farmacy, Program for Post-graduation in Pharmaceutical Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Liziane Raquel Beckenkamp
- Laboratory of Cell Biology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jean Sévigny
- Department of Microbiology-Infectiology and Immunology, Faculty of Medicine, Université Laval, Quebec, QC, Canada
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC, Canada
| | - Márcia Rosângela Wink
- Laboratory of Cell Biology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Andréia Buffon
- Faculty of Farmacy, Program for Post-graduation in Pharmaceutical Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Diogo André Pilger
- Faculty of Farmacy, Program for Post-graduation in Pharmaceutical Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
- Laboratory of Biochemical and Cytological Analyses, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Bairro Santana, Porto Alegre, Rio Grande do Sul, CEP 90610-000, Brazil.
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