1
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Pelizaro BI, Batista JCZ, Portapilla GB, das Neves AR, Silva F, Carvalho DB, Shiguemoto CYK, Pessatto LR, Paredes-Gamero EJ, Cardoso IA, Luccas PH, Nonato MC, Lopes NP, Galvão F, Oliveira KMP, Cassemiro NS, Silva DB, Piranda EM, Arruda CCP, de Albuquerque S, Baroni ACM. Design and Synthesis of Novel 3-Nitro-1 H-1,2,4-triazole-1,2,3-triazole-1,4-disubstituted Analogs as Promising Antitrypanosomatid Agents: Evaluation of In Vitro Activity against Chagas Disease and Leishmaniasis. J Med Chem 2024; 67:2584-2601. [PMID: 38305199 DOI: 10.1021/acs.jmedchem.3c01745] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
A series of 28 compounds, 3-nitro-1H-1,2,4-triazole, were synthesized by click-chemistry with diverse substitution patterns using medicinal chemistry approaches, such as bioisosterism, Craig-plot, and the Topliss set with excellent yields. Overall, the analogs demonstrated relevant in vitro antitrypanosomatid activity. Analog 15g (R1 = 4-OCF3-Ph, IC50 = 0.09 μM, SI = >555.5) exhibited an outstanding antichagasic activity (Trypanosoma cruzi, Tulahuen LacZ strain) 68-fold more active than benznidazole (BZN, IC50 = 6.15 μM, SI = >8.13) with relevant selectivity index, and suitable LipE = 5.31. 15g was considered an appropriate substrate for the type I nitro reductases (TcNTR I), contributing to a likely potential mechanism of action for antichagasic activity. Finally, 15g showed nonmutagenic potential against Salmonella typhimurium strains (TA98, TA100, and TA102). Therefore, 3-nitro-1H-1,2,4-triazole 15g is a promising antitrypanosomatid candidate for in vivo studies.
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Affiliation(s)
- Bruno I Pelizaro
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Jaqueline C Z Batista
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900,Brazil
| | - Gisele B Portapilla
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo CEP 14040-900, Brazil
| | - Amarith R das Neves
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900,Brazil
| | - Fernanda Silva
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900,Brazil
| | - Diego B Carvalho
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Cristiane Y K Shiguemoto
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Lucas R Pessatto
- Laboratório de Biologia Molecular (BioMol) e Cultivos Celulares, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal do Mato Grosso do Sul, Campo Grande,Mato Grosso do Sul CEP 79070-900 ,Brazil
| | - Edgar J Paredes-Gamero
- Laboratório de Biologia Molecular (BioMol) e Cultivos Celulares, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal do Mato Grosso do Sul, Campo Grande,Mato Grosso do Sul CEP 79070-900 ,Brazil
| | - Iara A Cardoso
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, Ribeirão Preto, São Paulo CEP 14040-903 ,Brazil
| | - Pedro H Luccas
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, Ribeirão Preto, São Paulo CEP 14040-903 ,Brazil
| | - M Cristina Nonato
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, Ribeirão Preto, São Paulo CEP 14040-903 ,Brazil
| | - Norberto P Lopes
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos, Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, Ribeirão Preto, São Paulo CEP 14040-903, Brazil
| | - Fernanda Galvão
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Mato Grosso do Sul CEP 79804-970, Brazil
| | - Kelly M P Oliveira
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Mato Grosso do Sul CEP 79804-970, Brazil
| | - Nadla S Cassemiro
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande ,Mato Grosso do SulCEP 79070-900, Brazil
| | - Denise B Silva
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande ,Mato Grosso do SulCEP 79070-900, Brazil
| | - Eliane M Piranda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900,Brazil
| | - Carla C P Arruda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900,Brazil
| | - Sergio de Albuquerque
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo CEP 14040-900, Brazil
| | - Adriano C M Baroni
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
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Andrade VHBD, M Rodrigues EY, Dias NAF, Ferreira GFC, Carvalho DBD, das Neves AR, Coronel PMV, Yonekawa MKA, Parisotto EB, Santos EAD, Souza AS, Paredes-Gamero EJ, de Sousa KS, Souza LLD, Resstel LBM, Baroni ACM, Lagatta DC. Neuroprotective Profile of Triazole Grandisin Analogue against Amyloid-Beta Oligomer-Induced Cognitive Impairment. ACS Chem Neurosci 2023; 14:4298-4310. [PMID: 38048522 DOI: 10.1021/acschemneuro.3c00443] [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] [Indexed: 12/06/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder caused by accumulation of amyloid-β oligomers (AβO) in the brain, neuroinflammation, oxidative stress, and cognitive decline. Grandisin, a tetrahydrofuran neolignan, exhibits relevant anti-inflammatory and antioxidant properties. Interestingly, grandisin-based compounds were shown to prevent AβO-induced neuronal death in vitro. However, no study has assessed the effect of these compounds on the AD animal model. This study focuses on a triazole grandisin analogue (TGA) synthesized using simplification and bioisosteric drug design, which resulted in improved potency and solubility compared with the parent compound. This study aimed to investigate the possible in vivo effects of TGA against AβO-induced AD. Male C57/Bl6 mice underwent stereotaxic intracerebroventricular AβO (90 μM) or vehicle injections. 24 h after surgery, animals received intraperitoneal treatment with TGA (1 mg/kg) or vehicle, administered on a 14 day schedule. One day after treatment completion, a novel object recognition task (NORT) was performed. Memantine (10 mg/kg) was administered as a positive control. NORT retention sessions were performed on days 8 and 16 after AβO injection. Immediately after retention sessions, animals were euthanized for cortex and hippocampus collection. Specimens were subjected to oxidative stress and cytokine analyses. TGA reduced the level of cortex/hippocampus lipoperoxidation and prevented cognitive impairment in AβO-injected mice. Additionally, TGA reduced tumor necrosis factor (TNF) and interferon-γ (IFN-γ) levels in the hippocampus. By contrast, memantine failed to prevent cortex/hippocampus lipid peroxidation, recognition memory decline, and AβO-induced increases in TNF and IFN-γ levels in the hippocampus. Thus, memantine was unable to avoid the AβO-induced persistent cognitive impairment. The results showed that TGA may prevent memory impairment by exerting antioxidant and anti-inflammatory effects in AβO-injected mice. Moreover, TGA exhibited a persistent neuroprotective effect compared to memantine, reflecting an innovative profile of this promising agent against neurodegenerative diseases, such as AD.
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Affiliation(s)
- Victor H B de Andrade
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Erick Y M Rodrigues
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Nayara A F Dias
- School of Medicine, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Gabriela F C Ferreira
- School of Medicine, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Diego B de Carvalho
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Amarith R das Neves
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Paola M V Coronel
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Murilo K A Yonekawa
- Institute of Biosciences, Federal University of Mato Grosso do Sul (INBIO-UFMS), Campo Grande 79051-470, Brazil
| | - Eduardo B Parisotto
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Edson A Dos Santos
- Institute of Biosciences, Federal University of Mato Grosso do Sul (INBIO-UFMS), Campo Grande 79051-470, Brazil
| | - Albert S Souza
- Institute of Biosciences, Federal University of Mato Grosso do Sul (INBIO-UFMS), Campo Grande 79051-470, Brazil
| | - Edgar J Paredes-Gamero
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Kamylla S de Sousa
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Letícia L de Souza
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Leonardo B M Resstel
- School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14049-900, Brazil
| | - Adriano C M Baroni
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
| | - Davi C Lagatta
- Pharmaceutical Sciences, Food and Nutrition School, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79051-470, Brazil
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das Neves AR, Carvalho DB, Silva F, Rosalem RF, Pelizaro BI, Castilho PF, Oliveira KMP, Cassemiro NS, Pessatto LR, Paredes-Gamero EJ, Piranda EM, Silva DB, Arruda CCP, Baroni ACM. In Vivo Antileishmanial Effect of 3,5-Diaryl-isoxazole Analogues Based on Veraguensin, Grandisin, and Machilin G: A Glance at a Preclinical Study. ACS Infect Dis 2023; 9:1150-1159. [PMID: 37103973 DOI: 10.1021/acsinfecdis.3c00090] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
New treatment approaches targeting cutaneous leishmaniasis (CL) are required since conventional drugs exhibit limitations due to their several adverse effects and toxicity. In this study, we aimed to evaluate the in vivo intralesional treatment efficacy of five isoxazole derivatives previously synthesized and effective in vitro against intracellular amastigote forms of Leishmania (L.) amazonensis. Among the tested analogues, 7 exhibited relevant in vivo therapeutic effects. The in silico predictions provided interesting information about the toxicity, suggesting the safety of analogue 7. Experiments performed with Salmonella typhimurium strains (TA98, TA100, and TA102) showed a non-mutagenicity profile of 7. The treatment of Leishmania-infected BALB/c mice with isoxazole 7 showed remarkably smaller CL lesions and decreased the parasitism (by 98.4%) compared to the control group. Hence, analogue 7 is a promising drug candidate and alternative treatment for CL caused by L. amazonensis.
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Affiliation(s)
- Amarith R das Neves
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Diego B Carvalho
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Fernanda Silva
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Rafael F Rosalem
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Bruno I Pelizaro
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Pamella F Castilho
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Mato Grosso do Sul CEP 79804-970, Brazil
| | - Kelly M P Oliveira
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Mato Grosso do Sul CEP 79804-970, Brazil
| | - Nadla S Cassemiro
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Lucas R Pessatto
- Laboratório de Biologia Molecular (BioMol) e Cultivos Celulares, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal do Mato Grosso do Sul, CEP 79070-900 Campo Grande, Mato Grosso do Sul, Brazil
| | - Edgar J Paredes-Gamero
- Laboratório de Biologia Molecular (BioMol) e Cultivos Celulares, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal do Mato Grosso do Sul, CEP 79070-900 Campo Grande, Mato Grosso do Sul, Brazil
| | - Eliane M Piranda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Denise B Silva
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Carla C P Arruda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
| | - Adriano C M Baroni
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul - UFMS, Campo Grande, Mato Grosso do Sul CEP 79070-900, Brazil
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Torquato HFV, Junior MTR, Lima CS, Júnior RTDA, Talhati F, Dias DA, Justo GZ, Ferreira AT, Pilli RA, Paredes-Gamero EJ. A canthin-6-one derivative induces cell death by apoptosis/necroptosis-like with DNA damage in acute myeloid cells. Biomed Pharmacother 2022; 145:112439. [PMID: 34808555 DOI: 10.1016/j.biopha.2021.112439] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 10/11/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 02/07/2023] Open
Abstract
Natural products have long been considered a relevant source of new antitumor agents. Despite advances in the treatment of younger patients with acute myeloid leukemia (AML), the prognosis of elderly patients remains poor, with a high frequency of relapse. The cytotoxicity of canthin-6-one alkaloids has been extensively studied in different cell types, including leukemic strains. Among the canthin-6-one analogs tested, 10-methoxycanthin-6-one (Mtx-C) showed the highest cytotoxicity in the malignant AML cells Kasumi-1 and KG-1. Thus, we evaluated the cytotoxicity and cell death mechanisms related to Mtx-C using the EC50 (80 µM for Kasumi-1 and 36 µM for KG-1) treatment for 24 h. Our results identify reactive oxygen species production, mitochondrial depolarization, annexin V-FITC/7-AAD double staining, caspase cleave and upregulation of mitochondria-dependent apoptosis proteins (Bax, Bim, Bik, Puma and phosphorylation of p53) for both cell lineages. However, downregulation of Bcl-2 and the simultaneous execution of the apoptotic and necroptotic programs associated with the phosphorylation of the proteins receptor-interacting serine/threonine-protein kinase 3 and mixed lineage kinase domain-like pseudokinase occurred only in Kasumi-1 cells. About the lasted events, Kasumi-1 cell death was inhibited by pharmacological agents such as Zvad-FMK and necrostatin-1. The underlying molecular mechanisms of Mtx-C still include participation in the DNA damage and stress-signaling pathways involving p38 and c-Jun N-terminal mitogen-activated protein kinases and interaction with DNA. Thus, Mtx-C represents a promising tool for the development of new antileukemic molecules.
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Affiliation(s)
- Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil; Faculdade de Farmácia, Centro Universitário Braz Cubas, 08773-380 Mogi das Cruzes, SP, Brazil; Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, 79070-900 Campo Grande, MS, Brazil
| | | | - Cauê Santos Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Roberto Theodoro de Araujo Júnior
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil; Faculdade de Farmácia, Centro Universitário Braz Cubas, 08773-380 Mogi das Cruzes, SP, Brazil
| | - Fernanda Talhati
- Faculdade de Farmácia, Centro Universitário Braz Cubas, 08773-380 Mogi das Cruzes, SP, Brazil
| | - Dhebora Albuquerque Dias
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, 79070-900 Campo Grande, MS, Brazil
| | - Giselle Zenker Justo
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Alice Teixeira Ferreira
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Ronaldo Aloise Pilli
- Instituto de Química, Universidade Estadual de Campinas, 13084-971 Campinas, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020 São Paulo, SP, Brazil; Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, 79070-900 Campo Grande, MS, Brazil.
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5
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Lillo A, Carvajal-Caiconte F, Vital W, Silva Junior PI, Paredes-Gamero EJ, Alvear M, Miranda A. Bioactive properties of Persea lingue Ness (Lauraceae) fruit and leaf extracts. BRAZ J BIOL 2021; 83:e248063. [PMID: 34495162 DOI: 10.1590/1519-6984.248063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/15/2021] [Indexed: 11/21/2022] Open
Abstract
Persea lingue Ness is a tree species that lives mainly in temperate forests of south-central Chile. Its leaves are used in ethnomedicine, the fruit is a drupe similar to that of the avocado and has not been studied. The aim of this study was to determine the cytotoxicity in leukemia cell and antibacterial activity, along with some chemical content characteristics of P. lingue fruit and leaf extracts. The antibacterial activity was determined by the inhibition of bacterial growth in liquid medium assay against Gram-positive and Gram-negative bacteria. The leukemia cell lines Kasumi-1 and Jurkat were used to evaluate the cytotoxic activity by using propidium iodide and AlamarBlue assays. Total phenolic, flavonoid, condensed tannin, alkaloid and lipid contents were evaluated in the fruit and in the leaf extracts. The antioxidant activity of both extracts were also elavaluated. Leaf extract presented the highest content of total phenols, condensed tannins and flavonoids, and also the highest antioxidant activity. While the fruit extract has a higher amount of lipids and alkaloids and the high antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus megaterium and Micrococcus luteus. The leaf extract only showed activity against M. luteus. Concerning the cytotoxic activity, only the fruit extract showed cytotoxicity against the cell lines Jurkat and Kasumi-1. P. lingue fruit extract is a potential source of biologically active molecules for the development of new drugs to be used in some types of leukemia, as well as antibacterial agent.
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Affiliation(s)
- A Lillo
- Universidade Federal de São Paulo - UNIFESP, Departamento de Ciência e Tecnologia, São José Dos Campos, SP, Brasil
| | - F Carvajal-Caiconte
- Universidad de La Frontera, Departamento de Ciencias Químicas y Recursos Naturales, Temuco, Chile
| | - W Vital
- Universidade Federal de São Paulo - UNIFESP, Departamento de Biologia Química, Diadema, SP, Brasil
| | - P I Silva Junior
- Instituto Butantan, Centro de Toxinas, Resposta Imune e Sinalização Celular - CeTICS, Centro de Pesquisa, Inovação e Difusão - CEPID, Laboratório de Toxinologia Aplicada - LETA, São Paulo, SP, Brasil
| | - E J Paredes-Gamero
- Universidade Federal de Mato Grosso do Sul - UFMS, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Campo Grande, MS, Brasil
| | - M Alvear
- Universidad de La Frontera, Departamento de Ciencias Químicas y Recursos Naturales, Temuco, Chile
| | - A Miranda
- Universidade Federal de São Paulo - UNIFESP, Departamento de Biofísica, São Paulo, SP, Brasil
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Buri MV, Sperandio LP, de Souza KFS, Antunes F, Rezende MM, Melo CM, Pinhal MAS, Barros CC, Fernig DG, Yates EA, Ide JS, Smaili SS, Riske KA, Nader HB, Luis Dos Santos Tersariol I, Lima MA, Judice WAS, Miranda A, Paredes-Gamero EJ. Endocytosis and the Participation of Glycosaminoglycans Are Important to the Mechanism of Cell Death Induced by β-Hairpin Antimicrobial Peptides. ACS Appl Bio Mater 2021; 4:6488-6501. [PMID: 35006908 DOI: 10.1021/acsabm.1c00390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cytotoxic mode of action of four antimicrobial peptides (AMPs) (gomesin, tachyplesin, protegrin, and polyphemusin) against a HeLa cell tumor model is discussed. A study of cell death by AMP stimulation revealed some similarities, including annexin-V externalization, reduction of mitochondrial potential, insensitivity against inhibitors of cell death, and membrane permeabilization. Evaluation of signaling proteins and gene expression that control cell death revealed wide variation in the responses to AMPs. However, the ability to cross cell membranes emerged as an important characteristic of AMP-dependent cell death, where endocytosis mediated by dynamin is a common mechanism. Furthermore, the affinity between AMPs and glycosaminoglycans (GAGs) and GAG participation in the cytotoxicity of AMPs were verified. The results show that, despite their primary and secondary structure homology, these peptides present different modes of action, but endocytosis and GAG participation are an important and common mechanism of cytotoxicity for β-hairpin peptides.
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Affiliation(s)
- Marcus Vinicius Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Letícia Paulino Sperandio
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil.,Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Kamylla F S de Souza
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Fernanda Antunes
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Marina Mastelaro Rezende
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Carina Mucciolo Melo
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Maria A S Pinhal
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Departmento de Bioquímica, Faculdade de Medicina Do ABC, Santo André 09060-870, Brazil
| | - Carlos C Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, No1, Pelotas 96010-610, Rio Grande do Sul, Brazil
| | - David G Fernig
- Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Edwin A Yates
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut 06519, United States
| | - Soraya S Smaili
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Helena B Nader
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | | | - Marcelo Andrade Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Wagner A S Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil
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7
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Visniauskas B, Perry JC, Gomes GN, Nogueira-Pedro A, Paredes-Gamero EJ, Tufik S, Chagas JR. Intermittent hypoxia changes the interaction of the kinin-VEGF system and impairs myocardial angiogenesis in the hypertrophic heart. Physiol Rep 2021; 9:e14863. [PMID: 33991464 PMCID: PMC8123545 DOI: 10.14814/phy2.14863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/29/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022] Open
Abstract
Intermittent hypoxia (IH) is a feature of obstructive sleep apnea (OSA), a condition highly associated with hypertension-related cardiovascular diseases. Repeated episodes of IH contribute to imbalance of angiogenic growth factors in the hypertrophic heart, which is key in the progression of cardiovascular complications. In particular, the interaction between vascular endothelial growth factor (VEGF) and the kallikrein-kinin system (KKS) is essential for promoting angiogenesis. However, researchers have yet to investigate experimental models of IH that reproduce OSA, myocardial angiogenesis, and expression of KKS components. We examined temporal changes in cardiac angiogenesis in a mouse IH model. Adult male C57BI/6 J mice were implanted with Matrigel plugs and subjected to IH for 1-5 weeks with subsequent weekly histological evaluation of vascularization. Expression of VEGF and KKS components was also evaluated. After 3 weeks, in vivo myocardial angiogenesis and capillary density were decreased, accompanied by a late increase of VEGF and its type 2 receptor. Furthermore, IH increased left ventricular myocardium expression of the B2 bradykinin receptor, while reducing mRNA levels of B1 receptor. These results suggest that in IH, an unexpected response of the VEGF and KKS systems could explain the reduced capillary density and impaired angiogenesis in the hypoxic heart, with potential implications in hypertrophic heart malfunction.
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Affiliation(s)
- Bruna Visniauskas
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Juliana C Perry
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Guiomar N Gomes
- Departmento de Fisiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - Sergio Tufik
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jair R Chagas
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil.,Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil
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8
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Costa MM, Stilhano RS, Oliveira CR, Barbosa CMV, Pereira GJS, Paredes-Gamero EJ, Nakaie CR, Smaili SS, Bincoletto C. Angiotensin II modulates the murine hematopoietic stem cell and progenitors cocultured with stromal S17 cells. Cell Biol Int 2021; 45:1459-1467. [PMID: 33675269 DOI: 10.1002/cbin.11584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 02/07/2021] [Accepted: 02/27/2021] [Indexed: 01/18/2023]
Abstract
Although the existence of the renin-angiotensin system (RAS) in the bone marrow is clear, the exact role of this system in hematopoiesis has not yet been fully characterized. Here the direct role of angiotensin II (AngII) in hematopoietic stem cells (HSCs), common myeloid progenitors (CMPs), granulocyte/monocyte progenitors (GMPs), and megakaryocytes/erythroid progenitors (MEPs), using a system of coculture with stromal S17 cells. Flow cytometry analysis showed that AngII increases the percentage of HSC and GMP, while reducing CMP with no effect on MEP. According to these data, AngII increased the total number of mature Gr-1+ /Mac-1+ cells without changes in Terr119+ cells. AngII does not induce cell death in the population of LSK cells. In these populations, treatment with AngII decreases the expression of Ki67+ protein with no changes in the Notch1 expression, suggesting a role for AngII on the quiescence of immature cells. In addition, exposure to AngII from murine bone marrow cells increased the number of CFU-GM and BFU-E in a clonogenic assay. In conclusion, our data showed that AngII is involved in the regulation of hematopoiesis with a special role in HSC, suggesting that AngII should be evaluated in coculture systems, especially in cases that require the expansion of these cells in vitro, still a significant challenge for therapeutic applications in humans.
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Affiliation(s)
- Maíra M Costa
- Departamento de Farmacologia, Escola Paulista de Medicina, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Roberta S Stilhano
- Departamento de Biofísica, Centro de Terapia Celular e Molecular, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Carlos R Oliveira
- Departamento de Farmacologia, Escola Paulista de Medicina, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Chistiano M V Barbosa
- Departamento de Biofísica, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Gustavo J S Pereira
- Departamento de Farmacologia, Escola Paulista de Medicina, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Clovis R Nakaie
- Departamento de Biofísica, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil.,Departamento de Bioquímica, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Soraya S Smaili
- Departamento de Farmacologia, Escola Paulista de Medicina, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Claudia Bincoletto
- Departamento de Farmacologia, Escola Paulista de Medicina, Instituto Nacional de Farmacologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
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9
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Filippin KJ, de Souza KFS, de Araujo Júnior RT, Torquato HFV, Dias DA, Parisotto EB, Ferreira AT, Paredes-Gamero EJ. Involvement of P2 receptors in hematopoiesis and hematopoietic disorders, and as pharmacological targets. Purinergic Signal 2020; 16:1-15. [PMID: 31863258 PMCID: PMC7166233 DOI: 10.1007/s11302-019-09684-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/12/2019] [Indexed: 12/11/2022] Open
Abstract
Several reports have shown the presence of P2 receptors in hematopoietic stem cells (HSCs). These receptors are activated by extracellular nucleotides released from different sources. In the hematopoietic niche, the release of purines and pyrimidines in the milieu by lytic and nonlytic mechanisms has been described. The expression of P2 receptors from HSCs until maturity is still intriguing scientists. Several reports have shown the participation of P2 receptors in events associated with modulation of the immune system, but their participation in other physiological processes is under investigation. The presence of P2 receptors in HSCs and their ability to modulate this population have awakened interest in exploring the involvement of P2 receptors in hematopoiesis and their participation in hematopoietic disorders. Among the P2 receptors, the receptor P2X7 is of particular interest, because of its different roles in hematopoietic cells (e.g., infection, inflammation, cell death and survival, leukemias and lymphomas), making the P2X7 receptor a promising pharmacological target. Additionally, the role of P2Y12 receptor in platelet activation has been well-documented and is the main example of the importance of the pharmacological modulation of P2 receptor activity. In this review, we focus on the role of P2 receptors in the hematopoietic system, addressing these receptors as potential pharmacological targets.
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Affiliation(s)
- Kelly Juliana Filippin
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brazil
| | - Kamylla F S de Souza
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | | | - Heron Fernandes Vieira Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo, SP, 04044-020, Brazil
- Universidade Braz Cubas, Av. Francisco Rodrigues Filho 1233, Mogi das Cruzes, SP, 08773-380, Brazil
| | - Dhébora Albuquerque Dias
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brazil
| | - Eduardo Benedetti Parisotto
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brazil
| | - Alice Teixeira Ferreira
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Botucatu 862, São Paulo, SP, 04023-062, Brazil.
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Laboratório de Biologia Molecular e Culturas Celulares, Av. Costa e Silva, s/n Bairro Universitário, Campo Grande, MS, CEP: 79070-900, Brazil.
| | - Edgar J Paredes-Gamero
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brazil.
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo, SP, 04044-020, Brazil.
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Laboratório de Biologia Molecular e Culturas Celulares, Av. Costa e Silva, s/n Bairro Universitário, Campo Grande, MS, CEP: 79070-900, Brazil.
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10
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R de Novais LM, Ferreira LF, de Sousa PT, Ribeiro TAN, Jacinto MJ, Dos Santos CHC, de Carvalho MG, Torquato HFV, Paredes-Gamero EJ, Silva VCP. Eglerisine, a Novel Sesquiterpenoid Tropolone from Dulacia egleri with Antiproliferative Effect against an Acute Myeloid Leukemia Lineage. Planta Med 2020; 86:55-60. [PMID: 31622995 DOI: 10.1055/a-1021-0611] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chemical investigation of the stems of Dulacia egleri resulted in the isolation of eglerisine (1: ), a compound with a rare sesquiterpenoid tropolone skeleton. Its structure was determined by analysis of spectrometric and spectroscopic data, including HRESIMS, 1D, and 2D NMR. The antiproliferative effects of eglerisine were tested in human leukemia lineages. In the Kasumi-1 lineage, an acute myeloid leukemia cell line, eglerisine reduced cell metabolism, as determined by the resazurin assay. Eglerisine did not induce cell death by either apoptotic or necrotic mechanisms. However, a reduction of the absolute number of cells was observed. Eglerisine induced cell cycle arrest after 72 h of treatment by phosphorylation of H2AX histone, reducing the S phase and increasing the G2 phase of the cell cycle.
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Affiliation(s)
- Leice M R de Novais
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Luiz F Ferreira
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Paulo T de Sousa
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Tereza A N Ribeiro
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Marcos J Jacinto
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Carlos H C Dos Santos
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Mário G de Carvalho
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Faculdade de Farmácia, Braz Cubas Educação, Mogi das Cruzes, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Virgínia C P Silva
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
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11
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Mastelaro de Rezende M, Ferreira AT, Paredes-Gamero EJ. Leukemia stem cell immunophenotyping tool for diagnostic, prognosis, and therapeutics. J Cell Physiol 2019; 235:4989-4998. [PMID: 31709540 DOI: 10.1002/jcp.29394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 10/25/2019] [Indexed: 12/15/2022]
Abstract
The existence of cancer stem cells is debatable in numerous solid tumors, yet in leukemia, there is compelling evidence of this cell population. Leukemic stem cells (LSCs) are altered cells in which accumulating genetic and/or epigenetic alterations occur, resulting in the transition between the normal, preleukemic, and leukemic status. These cells do not follow the normal differentiation program; they are arrested in a primitive state but with high proliferation potential, generating undifferentiated blast accumulation and a lack of a mature cell population. The identification of LSCs might guide stem cell biology research and provide key points of distinction between these cells and their normal counterparts. The identification and characterization of the main features of LSCs can be useful as tools for diagnosis and treatment. In this context, the aim of the present review was to connect immunophenotype data in the main types of leukemia to further guide technical improvements.
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Affiliation(s)
| | - Alice T Ferreira
- Departamento de Biofísica, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.,Division - Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal do Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
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12
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Visniauskas B, Pedro AN, Dias CC, Paredes-Gamero EJ, Tufik S, Chagas JR. 0218 The Impact of Sleep Deprivation in the Bone Marrow Progenitors and the Role of Angiotensin-Converting Enzyme. Sleep 2019. [DOI: 10.1093/sleep/zsz067.217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Bruna Visniauskas
- Tulane University, New Orleans, LA, USA
- Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Carolina C Dias
- Universidade Federal de São Paulo, São Paulo, Brazil
- Universidade de São Paulo, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Universidade Federal de São Paulo, São Paulo, Brazil
- Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Sergio Tufik
- Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jair R Chagas
- Universidade Federal de São Paulo, São Paulo, Brazil
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13
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Vital WD, Torquato HFV, Jesus LDOP, Judice WADS, Silva MFDGFD, Rodrigues T, Justo GZ, Veiga TAM, Paredes-Gamero EJ. 4-Deoxyraputindole C induces cell death and cell cycle arrest in tumor cell lines. J Cell Biochem 2018; 120:9608-9623. [PMID: 30525230 DOI: 10.1002/jcb.28238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 11/15/2018] [Indexed: 11/12/2022]
Abstract
Several molecules extracted from natural products exhibit different biological activities, such as ion channel modulation, activation of signaling pathways, and anti-inflammatory or antitumor activity. In this study, we tested the antitumor ability of natural compounds extracted from the Raputia praetermissa plant. Among the compounds tested, an alkaloid, here called compound S4 (4-Deoxyraputindole C), showed antitumor effects against human tumor lineages. Compound S4 was the most active against Raji, a lymphoma lineage, promoting cell death with characteristics that including membrane permeabilization, dissipation of the mitochondrial potential, increased superoxide production, and lysosomal membrane permeabilization. The use of cell death inhibitors such as Z-VAD-FMK (caspase inhibitor), necrostatin-1 (receptor-interacting serine/threonine-protein kinase 1 inhibitor), E-64 (cysteine peptidases inhibitor), and N-acetyl- L-cysteine (antioxidant) did not decrease compound S4-dependent cell death. Additionally, we tested the effect of cellular activity on adherent human tumor cells. The highest reduction of cellular activity was observed in A549 cells, a lung carcinoma lineage. In this lineage, the effect on the reduction of the cellular activity was due to cell cycle arrest, without plasma membrane permeabilization, loss of the mitochondrial potential or lysosomal membrane permeabilization. Compound S4 was able to inhibit cathepsin B and L by a nonlinear competitive (negative co-operativity) and simple-linear competitive inhibitions, respectively. The potency of inhibition was higher against cathepsin L. Compound S4 promoted cell cycle arrest at G 0 and G 2 phase, and increase the expression of p16 and p21 proteins. In conclusion, compound S4 is an interesting molecule against cancer, promoting cell death in the human lymphoma lineage Raji and cell cycle arrest in the human lung carcinoma lineage A549.
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Affiliation(s)
- Wagner D Vital
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Mogi das Cruzes, Brasil
| | - Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, Universidade Braz Cubas, São Paulo, Brazil
| | | | | | | | - Tiago Rodrigues
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | - Thiago A M Veiga
- Departamento de Química, Universidade Federal de São Paulo, Diadema, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, Universidade Braz Cubas, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Mato Grosso do Sul, Brazil
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14
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de Novais LMR, de Arueira CCO, Ferreira LF, Ribeiro TAN, Sousa PT, Jacinto MJ, de Carvalho MG, Judice WAS, Jesus LOP, de Souza AA, Torquato HFV, Paredes-Gamero EJ, Silva VC. 4'-Hydroxy-6,7-methylenedioxy-3-methoxyflavone: A novel flavonoid from Dulacia egleri with potential inhibitory activity against cathepsins B and L. Fitoterapia 2018; 132:26-29. [PMID: 30114470 DOI: 10.1016/j.fitote.2018.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/08/2018] [Accepted: 08/12/2018] [Indexed: 11/27/2022]
Abstract
A new flavone, 4'-hydroxy-6,7-methylenedioxy-3-methoxyflavone 1, and two other nucleosides, ribavirin 2 and adenosine 3, were isolated from the leaves of Dulacia egleri. The nucleosides were identified by spectroscopic techniques (1D, 2D-NMR) while the structure of the flavonoid was established by 1D, 2D-NMR analysis, including HRESIMS data. The results obtained in the biological assays showed that the compound 1 was able to inhibit cathepsins B and L with IC50 of 14.88 ± 0.18 μM and 3.19 ± 0.07 μM, respectively. The mechanism of inhibition for both enzymes were determined showing to be competitive at cathepsin B with Ki = 12.8 ± 0.6 μM and non-linear non-competitive with positive cooperativity inhibition at cathepsin L with Ki = 322 ± 33 μM, αKi = 133 ± 15 μM, βKi = 5.14 ± 0.41 μM and γKi = 13.2 ± 13 μM.
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Affiliation(s)
- Leice M R de Novais
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | | | - Luiz F Ferreira
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Tereza A N Ribeiro
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Paulo T Sousa
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Marcos J Jacinto
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil
| | - Mário G de Carvalho
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Wagner A S Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil.
| | - Larissa O P Jesus
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
| | - Aline A de Souza
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
| | - Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo (Campus São Paulo), São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
| | - Virginia C Silva
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil.
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15
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de Alvarenga EC, Silva WN, Vasconcellos R, Paredes-Gamero EJ, Mintz A, Birbrair A. Promyelocytic leukemia protein in mesenchymal stem cells is essential for leukemia progression. Ann Hematol 2018; 97:1749-1755. [PMID: 30069705 DOI: 10.1007/s00277-018-3463-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 07/25/2018] [Indexed: 12/28/2022]
Abstract
The dynamic interactions between leukemic cells and cells resident within the bone marrow microenvironment are vital for leukemia progression. The lack of detailed knowledge about the cellular and molecular mechanisms involved in this cross-talk restricts the design of effective treatments. Guarnerio et al. (2018) by using state-of-the-art techniques, including sophisticated Cre/loxP technologies in combination with leukemia mouse models, reveal that mesenchymal stem cells via promyelocytic leukemia protein (Pml) maintain leukemic cells in the bone marrow niche. Strikingly, genetic deletion of Pml in mesenchymal stem cells raised survival of leukemic mice under chemotherapeutic treatment. The emerging knowledge from this research provides a novel target in the bone marrow niche for therapeutic benefit in leukemia.
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Affiliation(s)
- Erika Costa de Alvarenga
- Department of Natural Sciences, Federal University of São João del Rei, São João Del Rey, MG, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rebecca Vasconcellos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São Paulo, São Paulo, SP, Brazil.,Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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16
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Ferraz LS, Watashi CM, Colturato-Kido C, Pelegrino MT, Paredes-Gamero EJ, Weller RB, Seabra AB, Rodrigues T. Antitumor Potential of S-Nitrosothiol-Containing Polymeric Nanoparticles against Melanoma. Mol Pharm 2018; 15:1160-1168. [DOI: 10.1021/acs.molpharmaceut.7b01001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Letícia S. Ferraz
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Carolina M. Watashi
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Carina Colturato-Kido
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Milena T. Pelegrino
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Edgar J. Paredes-Gamero
- Interdisciplinary Center for Biochemistry Investigation (CIIB), University of Mogi das Cruzes (UMC), 08780-911 Mogi das Cruzes, São Paulo, Brazil
| | - Richard B. Weller
- Medical Research Council Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, EH16 4TJ Edinburgh, U.K
| | - Amedea B. Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
- Nanomedicine Research Unit (NANOMED), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
| | - Tiago Rodrigues
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
- Nanomedicine Research Unit (NANOMED), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
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17
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Campos JF, Espindola PPDT, Torquato HFV, Vital WD, Justo GZ, Silva DB, Carollo CA, de Picoli Souza K, Paredes-Gamero EJ, Dos Santos EL. Leaf and Root Extracts from Campomanesia adamantium (Myrtaceae) Promote Apoptotic Death of Leukemic Cells via Activation of Intracellular Calcium and Caspase-3. Front Pharmacol 2017; 8:466. [PMID: 28855870 PMCID: PMC5558464 DOI: 10.3389/fphar.2017.00466] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 06/30/2017] [Indexed: 12/21/2022] Open
Abstract
Phytochemical studies are seeking new alternatives to prevent or treat cancer, including different types of leukemias. Campomanesia adamantium, commonly known as guavira or guabiroba, exhibits pharmacological properties including antioxidant, antimicrobial, and antiproliferative activities. Considering the anticancer potential of this plant species, the aim of this study was to evaluate the antileukemic activity and the chemical composition of aqueous extracts from the leaves (AECL) and roots (AECR) of C. adamantium and their possible mechanisms of action. The extracts were analyzed by LC-DAD-MS, and their constituents were identified based on the UV, MS, and MS/MS data. The AECL and AECR showed different chemical compositions, which were identified as main compounds glycosylated flavonols from AECL and ellagic acid and their derivatives from AECR. The cytotoxicity promoted by these extracts were evaluated using human peripheral blood mononuclear cells and Jurkat leukemic cell line. The cell death profile was evaluated using annexin-V-FITC and propidium iodide labeling. Changes in the mitochondrial membrane potential, the activity of caspases, and intracellular calcium levels were assessed. The cell cycle profile was evaluated using propidium iodide. Both extracts caused concentration-dependent cytotoxicity only in Jurkat cells via late apoptosis. This activity was associated with loss of the mitochondrial membrane potential, activation of caspases-9 and -3, changes in intracellular calcium levels, and cell cycle arrest in S-phase. Therefore, the antileukemic activity of the AECL and AECR is mediated by mitochondrial dysfunction and intracellular messengers, which activate the intrinsic apoptotic pathway. Hence, aqueous extracts of the leaves and roots of C. adamantium show therapeutic potential for use in the prevention and treatment of diseases associated the proliferation of tumor cell.
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Affiliation(s)
- Jaqueline F Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Priscilla P de Toledo Espindola
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Heron F V Torquato
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Faculty of Pharmacy, Braz Cubas UniversityMogi das Cruzes, Brazil
| | - Wagner D Vital
- Interdisciplinary Center of Biochemistry Investigation, University of Mogi das CruzesMogi das Cruzes, Brazil
| | - Giselle Z Justo
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Department of Pharmaceutical Sciences, Federal University of São PauloSão Paulo, Brazil
| | - Denise B Silva
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do SulMato Grosso do Sul, Brazil
| | - Carlos A Carollo
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do SulMato Grosso do Sul, Brazil
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Interdisciplinary Center of Biochemistry Investigation, University of Mogi das CruzesMogi das Cruzes, Brazil
| | - Edson L Dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
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18
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Vieira Torquato HF, Ribeiro-Filho AC, Buri MV, Araújo Júnior RT, Pimenta R, de Oliveira JSR, Filho VC, Macho A, Paredes-Gamero EJ, de Oliveira Martins DT. Canthin-6-one induces cell death, cell cycle arrest and differentiation in human myeloid leukemia cells. Biochim Biophys Acta Gen Subj 2017; 1861:958-967. [PMID: 28161479 DOI: 10.1016/j.bbagen.2017.01.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/18/2017] [Accepted: 01/30/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Canthin-6-one is a natural product isolated from various plant genera and from fungi with potential antitumor activity. In the present study, we evaluate the antitumor effects of canthin-6-one in human myeloid leukemia lineages. METHODS Kasumi-1 lineage was used as a model for acute myeloid leukemia. Cells were treated with canthin-6-one and cell death, cell cycle and differentiation were evaluated in both total cells (Lin+) and leukemia stem cell population (CD34+CD38-Lin-/low). RESULTS Among the human lineages tested, Kasumi-1 was the most sensitive to canthin-6-one. Canthin-6-one induced cell death with apoptotic (caspase activation, decrease of mitochondrial potential) and necrotic (lysosomal permeabilization, double labeling of annexin V/propidium iodide) characteristics. Moreover, canthin-6-one induced cell cycle arrest at G0/G1 (7μM) and G2 (45μM) evidenced by DNA content, BrdU incorporation and cyclin B1/histone 3 quantification. Canthin-6-one also promoted differentiation of Kasumi-1, evidenced by an increase in the expression of myeloid markers (CD11b and CD15) and the transcription factor PU.1. Furthermore, a reduction of the leukemic stem cell population and clonogenic capability of stem cells were observed. CONCLUSIONS These results show that canthin-6-one can affect Kasumi-1 cells by promoting cell death, cell cycle arrest and cell differentiation depending on concentration used. GENERAL SIGNIFICANCE Canthin-6-one presents an interesting cytotoxic activity against leukemic cells and represents a promising scaffold for the development of molecules for anti-leukemic applications, especially by its anti-leukemic stem cell activity.
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Affiliation(s)
- Heron F Vieira Torquato
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil; Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Antonio C Ribeiro-Filho
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, São Paulo, Brazil
| | - Marcus V Buri
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Roberto T Araújo Júnior
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Renata Pimenta
- Department of Medicine (Hematology), Federal University of São Paulo (UNIFESP), Av. Diogo de Faria, 824, São Paulo, São Paulo 04037-002, Brazil
| | - José Salvador R de Oliveira
- Department of Medicine (Hematology), Federal University of São Paulo (UNIFESP), Av. Diogo de Faria, 824, São Paulo, São Paulo 04037-002, Brazil
| | - Valdir C Filho
- Chemical-Pharmaceutical Research Center, University of Vale of Itajaí (UNIVALI), Rua Uruguai, no. 458, Centro, Itajaí, Santa Catarina 88302-202, Brazil
| | - Antonio Macho
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil; Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, São Paulo, Brazil.
| | - Domingos T de Oliveira Martins
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil.
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19
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Torquato HFV, Goettert MI, Justo GZ, Paredes-Gamero EJ. Anti-Cancer Phytometabolites Targeting Cancer Stem Cells. Curr Genomics 2017; 18:156-174. [PMID: 28367074 PMCID: PMC5345336 DOI: 10.2174/1389202917666160803162309] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 12/24/2015] [Accepted: 12/28/2015] [Indexed: 12/13/2022] Open
Abstract
Medicinal plants are a plentiful source of bioactive molecules with much structural diversity. In cancer treatment, molecules obtained from plants represent an attractive alternative to other treatments because several plant-derived compounds have exhibited lower toxicity and higher selectivity against cancer cells. In this review, we focus on the possible application of bioactive molecules obtained from plants against more primitive cell populations in cancers, cancer stem cells. Cancer stem cells are present in several kinds of tumors and are responsible for recurrences and metastases. Common anti-cancer drugs exhibit lower effectiveness against cancer stem cells because of their biological features. However, recently discovered natural phytometabolites exert cytotoxic effects on this rare population of cells in cancers. Therefore, this review presents the latest research on promising compounds from plants that can act as antitumor drugs and that mainly affect stem cell populations in cancers.
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Affiliation(s)
- Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo (Campus São Paulo), São Paulo, Brazil
| | - Márcia I Goettert
- Programa de Pós-Graduação em Biotecnologia, Centro Universitário Univates, Rio Grande do Sul, Brazil
| | - Giselle Z Justo
- Departamento de Bioquímica, Universidade Federal de São Paulo (Campus São Paulo), São Paulo, Brazil;; Departamento de Ciências Biológicas (Campus Diadema), Universidade Federal de São Paulo, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo (Campus São Paulo), São Paulo, Brazil;; Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, São Paulo, Brazil
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20
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Buri MV, Torquato HFV, Barros CC, Ide JS, Miranda A, Paredes-Gamero EJ. Comparison of Cytotoxic Activity in Leukemic Lineages Reveals Important Features of β-Hairpin Antimicrobial Peptides. J Cell Biochem 2017; 118:1764-1773. [PMID: 27987312 DOI: 10.1002/jcb.25844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 12/14/2016] [Indexed: 02/06/2023]
Abstract
Several reports described different modes of cell death triggered by antimicrobial peptides (AMPs) due to direct effects on membrane disruption, and more recently by apoptosis and necrosis-like patterns. Cytotoxic curves of four β-hairpin AMPs (gomesin, protegrin, tachyplesin, and polyphemusin) were obtained from several human leukemic lineages and normal monocytes and Two cell lines were then selected based on their cytotoxic sensitivity. One was sensitive to AMPs (K562) and the other resistant (KG-1) and their effect compared between these lineages. Thus, these lineages were chosen to further investigate biological features related with their cytotoxicities to AMPs. Stimulation with AMPs produced cell death, with activation of caspase-3, in K562 lineage. Increase on the fluidity of plasmatic membrane by reducing cholesterol potentiated cytotoxicity of AMPs in both lineages. Quantification of internal and external gomesin binding to the cellular membrane of both K562 and KG-1 cells showed that more peptide is accumulated inside of K562 cells. Additionally, evaluation of multi-drug resistant pumps activity showed that KG-1 has more activity than K562 lineage. A comparison of intrinsic gene patterns showed great differences between K562 and KG-1, but stimulation with gomesin promoted few changes in gene expression patterns. Differences in internalization process through the plasma membrane, multidrug resistance pumps activity, and gene expression pattern are important features to AMPs regulated cell death. J. Cell. Biochem. 118: 1764-1773, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Heron F Vieira Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Carlos Castilho Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, n°1, 96010-610, Pelotas, RS, Brazil
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven 06519, Connecticut
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil.,Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200. Mogi das Cruzes, SP, Brazil
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21
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Vitek R, de Novais LMR, Torquato HFV, Paredes-Gamero EJ, de Carvalho MG, de Sousa PT, Jacinto MJ, da Silva VC. Chemical constituents and antileukemic activity of Eugenia dysenterica. Nat Prod Res 2016; 31:1930-1934. [DOI: 10.1080/14786419.2016.1261343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Renan Vitek
- Programa de Pós-Graduação em Química, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Leice M. R. de Novais
- Programa de Pós-Graduação em Química, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Heron F. V. Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Edgar J. Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Mogi das Cruzes, Brazil
| | - Mário G. de Carvalho
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Paulo T. de Sousa
- Programa de Pós-Graduação em Química, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Marcos J. Jacinto
- Programa de Pós-Graduação em Química, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Virgínia C. da Silva
- Programa de Pós-Graduação em Química, Universidade Federal de Mato Grosso, Cuiabá, Brazil
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22
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Buri MV, Dias CC, Barbosa CMV, Nogueira-Pedro A, Ribeiro-Filho AC, Miranda A, Paredes-Gamero EJ. Gomesin acts in the immune system and promotes myeloid differentiation and monocyte/macrophage activation in mouse. Peptides 2016; 85:41-45. [PMID: 27614284 DOI: 10.1016/j.peptides.2016.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/03/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022]
Abstract
Due to the cytotoxic effect of antimicrobial peptides (AMP) against several microorganism and tumor cells has been proposed their association with the immune system. However, just a few reports have shown this relationship. In this study, mice were treated with gomesin, a β-hairpin AMP that exhibit high cytotoxicity against bacterial and tumor cells. Different effects in the immune system were observed, such as, decrease of CD3+ in T lymphocytes (Control: 17.7±1.4%; Gomesin: 7.67±1.2%) and in hematopoietic progenitors and increase of hematopoietic stem cell (Control: 0.046±0.004%; Gomesin: 0.067±0.003%), B220+ B lymphocytes (Control: 38.63±1.5%; Gomesin: 47.83±0.48%), and Mac-1+F4/80+ macrophages (Control: 11.76±3.4%; Gomesin: 27.13±4.0%). Additionally, macrophage increase was accompanied by an increase of macrophage phagocytosis (Control 20.85±1.53; Gomesin 31.32±1 Geometric mean), interleukin 6 (Control: 47.24±1.9ng/mL; Gomesin: 138.68±33.68ng/mL) and monocyte chemoattractant protein-1 (Control: 0.872±0.093ng/mL; Gomesin: 1.83±0.067ng/mL). Thus, this report showed immunomodulatory activity of gomesin in the immune system of mice.
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Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Carol C Dias
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Amanda Nogueira-Pedro
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Antonio C Ribeiro-Filho
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil.
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil; Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil.
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23
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Bonazza C, Andrade SS, Sumikawa JT, Batista FP, Paredes-Gamero EJ, Girão MJBC, Oliva MLV, Castro RA. Primary Human Uterine Leiomyoma Cell Culture Quality Control: Some Properties of Myometrial Cells Cultured under Serum Deprivation Conditions in the Presence of Ovarian Steroids. PLoS One 2016; 11:e0158578. [PMID: 27391384 PMCID: PMC4938619 DOI: 10.1371/journal.pone.0158578] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 02/21/2016] [Accepted: 06/17/2016] [Indexed: 01/05/2023] Open
Abstract
Cell culture is considered the standard media used in research to emulate the in vivo cell environment. Crucial in vivo experiments cannot be conducted in humans and depend on in vitro methodologies such as cell culture systems. However, some procedures involving the quality control of cells in culture have been gradually neglected by failing to acknowledge that primary cells and cell lines change over time in culture. Thus, we report methods based on our experience for monitoring primary cell culture of human myometrial cells derived from uterine leiomyoma. We standardized the best procedure of tissue dissociation required for the study of multiple genetic marker systems that include species-specific antigens, expression of myofibroblast or myoblast markers, growth curve, serum deprivation, starvation by cell cycle synchronization, culture on collagen coated plates, and 17 β-estradiol (E2) and progesterone (P4) effects. The results showed that primary myometrial cells from patients with uterine leiomyoma displayed myoblast phenotypes before and after in vitro cultivation, and leiomyoma cells differentiated into mature myocyte cells under the appropriate differentiation-inducing conditions (serum deprivation). These cells grew well on collagen coated plates and responded to E2 and P4, which may drive myometrial and leiomyoma cells to proliferate and adhere into a focal adhesion complex involvement in a paracrine manner. The establishment of these techniques as routine procedures will improve the understanding of the myometrial physiology and pathogenesis of myometrium-derived diseases such as leiomyoma. Mimicking the in vivo environment of fibrotic conditions can prevent false results and enhance results that are based on cell culture integrity.
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Affiliation(s)
- Camila Bonazza
- Department of Gynecology of Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Joana Tomomi Sumikawa
- Department of Gynecology of Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | | | - Manoel J. B. C. Girão
- Department of Gynecology of Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Maria Luiza V. Oliva
- Department of Biochemistry of Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Rodrigo Aquino Castro
- Department of Gynecology of Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail:
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24
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Dos S Beirigo PJ, Torquato HFV, Dos Santos CHC, Carvalho MGD, Castro RN, Paredes-Gamero EJ, de Sousa PT, Jacinto MJ, da Silva VC. [1-8-NαC]-Zanriorb A1, a Proapoptotic Orbitide from Leaves of Zanthoxylum riedelianum. J Nat Prod 2016; 79:1454-8. [PMID: 27082849 DOI: 10.1021/acs.jnatprod.5b00177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A new orbitide named [1-8-NαC]-zanriorb A1 (1) was isolated and characterized from the leaves of Zanthoxylum riedelianum using NMR and mass spectrometry. The absolute configuration of the amino acids was determined using Marfey's method on the acid hydrolysates. Compound 1 induced cell death by apoptosis in Jurkat leukemia T cells (IC50 218 nM).
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Affiliation(s)
- Pâmela J Dos S Beirigo
- Departamento de Química, Universidade Federal de Mato Grosso , Cuiabá, MT 78060-900, Brazil
| | - Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo , São Paulo, SP 04039-032, Brazil
| | - Carlos H C Dos Santos
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro , Seropédica, RJ 23890-000, Brazil
| | - Mário G de Carvalho
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro , Seropédica, RJ 23890-000, Brazil
| | - Rosane N Castro
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro , Seropédica, RJ 23890-000, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo , São Paulo, SP 04039-032, Brazil
| | - Paulo T de Sousa
- Departamento de Química, Universidade Federal de Mato Grosso , Cuiabá, MT 78060-900, Brazil
| | - Marcos J Jacinto
- Departamento de Química, Universidade Federal de Mato Grosso , Cuiabá, MT 78060-900, Brazil
| | - Virgínia C da Silva
- Departamento de Química, Universidade Federal de Mato Grosso , Cuiabá, MT 78060-900, Brazil
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Aranalde LCR, Pederzoli BS, Marten T, Barros FC, Basso RP, Silveira JM, Valle SC, Pieniz S, Araujo RC, Paredes-Gamero EJ, Schadock I, Schneider A, Barros CC. The ACTN3 R577X polymorphism affects the lipid profile and the prognosis of nutritional intervention in HIV-positive patients. Nutr Res 2016; 36:564-74. [PMID: 27188902 DOI: 10.1016/j.nutres.2016.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 09/01/2015] [Revised: 01/19/2016] [Accepted: 02/15/2016] [Indexed: 01/06/2023]
Abstract
The hypothesis of the present study is that the polymorphisms in the APOC3, CEPT, ACE, and ACTN3 genes can affect the outcome of nutritional intervention and the plasma lipid profile of HIV+ patients. To test the hypothesis, genetic material was collected from buccal cells, and serum was collected for biochemical analysis. Sixty-five patients were analyzed. The incorporation of protease inhibitor (PI) was more frequent in women (77% vs 33% in men). Nutritional intervention improved anthropometric parameters independent of the genotype. Patients with the RR genotype for the ACTN3 R577X polymorphism had lower glycemia (RR = 95.4 ± 6.5 mg/dL, RX = 102.6 ± 10.6 mg/dL, XX = 110.1 ± 16.3 mg/dL; P = .03) and a greater reduction in low-density lipoproteins (LDL) after intervention (LDL: RR = -23.7 ± 15.8 mg/dL, RX = 1.32 ± 5.13 mg/dL, XX = 30.21 ± 24.4 mg/dL; P = .01). Patients using PI had a negative response to dietary intervention regarding the levels of high-density lipoprotein (-2.4 ± 1.70 with PI, 2.56 ± 1.60 mg/dL without PI; P = .02), very low density lipoprotein (0.84 ± 2.73 with IP, -5.46 ± 3.37 mg/dL without PI; P = .03), and triglycerides (1.79 ± 13.22 with PI, -34.00 ± 17.67 mg/dL without PI; P = .052). This response was also independent of the genotype (P > 0.05) and suggested the need for oral lipid-lowering drugs in all HIV+ patients using PI. Our results indicate that the ACTN3 R577X polymorphism is a good predictor of both the lipid profile and the prognosis of nutritional intervention in reducing LDL in HIV+ patients.
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Affiliation(s)
- Laura C R Aranalde
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Bruna S Pederzoli
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Thais Marten
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Flavio C Barros
- Paulista University, Rua Luís Goes, 2211 Mirandópolis, Sao Paulo, Brazil
| | - Rossana P Basso
- University Hospital Dr. Miguel Riet Correa Jr.-Federal University of Rio Grande, Porto Alegre, Brazil
| | - Jussara M Silveira
- University Hospital Dr. Miguel Riet Correa Jr.-Federal University of Rio Grande, Porto Alegre, Brazil
| | - Sandra C Valle
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Simone Pieniz
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Ronaldo C Araujo
- Department of Biophysics-Federal University of São Paulo, R. Botucatu, 862, Sao Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry-Federal University of São Paulo, R. Botucatu, 862, Sao Paulo, Brazil
| | - Ines Schadock
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Augusto Schneider
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil
| | - Carlos C Barros
- School of Nutrition-Federal University of Pelotas, R. Gomes Carneiro no. 01, Pelotas, Brazil.
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26
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Dias CC, Nogueira-Pedro A, Tokuyama PY, Martins MNC, Segreto HRC, Buri MV, Miranda A, Paredes-Gamero EJ. A synthetic fragment of leptin increase hematopoietic stem cell population and improve its engraftment ability. J Cell Biochem 2016; 116:1334-40. [PMID: 25735790 DOI: 10.1002/jcb.25090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 01/16/2015] [Indexed: 02/06/2023]
Abstract
Several studies have shown the important actions of cytokine leptin that regulates food intake and energy expenditure. Additionally, the ability to modulate hematopoiesis has also been demonstrated. Previous reports have shown that some synthetic sequences of leptin molecules can activate leptin receptor. Herein, decapeptides encompassing amino acids from positions 98 to 122 of the leptin molecule were constructed to evaluate their effects on hematopoiesis. Among them, the synthetic peptide Lep(110-119)-NH2 (LEP F) was the only peptide that possessed the ability to increase the percentage of hematopoietic stem cells (HSC). Moreover, LEP F also produced an increase of granulocyte/macrophage colony-forming units and activated leptin receptor. Furthermore, LEP F also improves the grafting of HSC in bone marrow, but did not accelerate the recovery of bone marrow after ablation with 5-fluorouracil. These results show that LEP F is a positive modulator of the in vivo expansion of HSC and could be useful in bone marrow transplantation.
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Affiliation(s)
- Carolina C Dias
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Amanda Nogueira-Pedro
- Departmento de Biofísica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Paula Yumi Tokuyama
- Departmento de Biofísica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Marta N C Martins
- Departmento de Biofísica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Helena Regina Comodo Segreto
- Departamento de Oncologia Clínica e Experimental, Universidade Federal de São Paulo, R. Napoleão de Barros, 715, São Paulo, Brazil
| | - Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Antonio Miranda
- Departmento de Biofísica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP, 04044-020, Brazil.,Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
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27
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Moura GEDD, Lucena SV, Lima MA, Nascimento FD, Gesteira TF, Nader HB, Paredes-Gamero EJ, Tersariol ILS. P2X7 receptor activity regulation: the role of CD44 proteoglycan GAG chains. Cell Death Dis 2015; 6:e1997. [PMID: 26610209 PMCID: PMC4670943 DOI: 10.1038/cddis.2015.340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- G E D D Moura
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - S V Lucena
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - M A Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - F D Nascimento
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil.,Grupo de Pesquisa em Biomateriais e Biotecnologia, Universidade Bandeirante de São Paulo, São Paulo, Brazil
| | - T F Gesteira
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil.,Division of Developmental Biology, Cincinnati Children's Hospital and Research, Cincinnati, OH, USA
| | - H B Nader
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - E J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil.,Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, São Paulo, Brazil
| | - I L S Tersariol
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil.,Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, São Paulo, Brazil
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28
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Vasconcelos LHC, Correia ACDC, de Souza ILL, Silva MDCC, Paredes-Gamero EJ, Santos BVDO, Cavalcante FDA, da Silva BA. Flavonoid galetin 3,6-dimethyl ether attenuates guinea pig ileum contraction through K(+) channel activation and decrease in cytosolic calcium concentration. Eur J Pharmacol 2015; 767:52-60. [PMID: 26452514 DOI: 10.1016/j.ejphar.2015.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 09/23/2015] [Accepted: 10/02/2015] [Indexed: 11/27/2022]
Abstract
Flavonoid galetin 3,6-dimethyl ether (FGAL) has been isolated from the aerial parts of Piptadenia stipulaceae and has shown a spasmolytic effect in guinea pig ileum. Thus, we aimed to characterize its relaxant mechanism of action. FGAL exhibited a higher relaxant effect on ileum pre-contracted by histamine (EC50=1.9±0.4×10(-7) M) than by KCl (EC50=2.6±0.5×10(-6) M) or carbachol (EC50=1.8±0.4×10(-6) M). The flavonoid inhibited the cumulative contractions to histamine, as well as to CaCl2 in depolarizing medium nominally Ca(2+)-free. The flavonoid relaxed the ileum pre-contracted by S-(-)-Bay K8644 (EC50=9.5±1.9×10(-6) M) but less potently pre-contracted by KCl or histamine. CsCl attenuated the relaxant effect of FGAL (EC50=1.1±0.3×10(-6) M), but apamin or tetraethylammonium (1mM) had no effect (EC50=2.6±0.2×10(-7) and 1.6±0.3×10(-7) M, respectively), ruling out the involvement of small and big conductance Ca(2+)-activated K(+) channels (SKCa and BKCa, respectively). Either 4-aminopyridine or glibenclamide attenuated the relaxant effect of FGAL (EC50=1.8±0.2×10(-6) and 1.5±0.5×10(-6) M, respectively), indicating the involvement of voltage- and ATP-sensitive K(+) channels (KV and KATP, respectively). FGAL did not alter the viability of intestinal myocytes in the MTT assay and decreased (88%) Fluo-4 fluorescence, indicating a decrease in cytosolic Ca(2+) concentration. Therefore, the relaxant mechanism of FGAL involves pseudo-irreversible noncompetitive antagonism of histaminergic receptors, KV and KATP activation and blockade of CaV1, thus leading to a reduction in cytosolic Ca(2+) levels.
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Affiliation(s)
- Luiz H C Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil
| | - Ana C de C Correia
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil
| | - Iara L L de Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil
| | - Maria da C C Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Biofísca, Universidade Federal de São Paulo, 04021-001 São Paulo, São Paulo, Brazil
| | - Bárbara V de O Santos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil; Departamento de Ciências Farmacêuticas, Universidade Federal da Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil
| | - Fabiana de A Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil; Departamento de Fisiologia e Patologia, Universidade Federal da Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil.
| | - Bagnólia A da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, Campus I, 58051-970 João Pessoa, Paraíba, Brazil; Departamento de Ciências Farmacêuticas, Universidade Federal da Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil
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29
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Lungato L, Gazarini ML, Paredes-Gamero EJ, Tufik S, D'Almeida V. Paradoxical sleep deprivation impairs mouse survival after infection with malaria parasites. Malar J 2015; 14:183. [PMID: 25927919 PMCID: PMC4416287 DOI: 10.1186/s12936-015-0690-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 12/08/2014] [Accepted: 04/15/2015] [Indexed: 12/22/2022] Open
Abstract
Background Parasitic diseases like malaria are a major public health problem in many countries and disrupted sleep patterns are an increasingly common part of modern life. The aim of this study was to assess the effects of paradoxical sleep deprivation (PSD) and sleep rebound (RB) on malarial parasite infection in mice. Methods After PSD, one group was immediately infected with parasites (PSD). The two other PSD rebound groups were allowed to sleep normally for either 24 h (24 h RB) or 48 h (48 h RB). After the recovery periods, mice were inoculated with parasites. Results The PSD group was the most affected by parasites presenting the higher death rate (0.02), higher number of infected cells (p < 0.01), and decrease in body weight (p < 0.04) compared to control and 48 h RB groups. The 24 h RB group was also different from control group in survival (p < 0.03), number of infected cells (p < 0.05) and body weight (p < 0.04). After 48 hours of sleep rebound animals were allowed to restore their response to parasitic infection similar to normal sleep animals. Conclusions These results suggest that PSD is damaging to the immune system and leads to an increased infection severity of malaria parasites; only 48 hours of recovery sleep was sufficient to return the mice infection response to baseline values. Electronic supplementary material The online version of this article (doi:10.1186/s12936-015-0690-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lisandro Lungato
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
| | - Marcos L Gazarini
- Department of Biosciences, Universidade Federal de São Paulo, Santos, SP, Brazil.
| | | | - Sergio Tufik
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
| | - Vânia D'Almeida
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
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30
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Silva RA, Palladino MV, Cavalheiro RP, Machado D, Cruz BLG, Paredes-Gamero EJ, Gomes-Marcondes MCC, Zambuzzi WF, Vasques L, Nader HB, Souza ACS, Justo GZ. Activation of the low molecular weight protein tyrosine phosphatase in keratinocytes exposed to hyperosmotic stress. PLoS One 2015; 10:e0119020. [PMID: 25781955 PMCID: PMC4363792 DOI: 10.1371/journal.pone.0119020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 03/05/2014] [Accepted: 01/15/2015] [Indexed: 12/18/2022] Open
Abstract
Herein, we provide new contribution to the mechanisms involved in keratinocytes response to hyperosmotic shock showing, for the first time, the participation of Low Molecular Weight Protein Tyrosine Phosphatase (LMWPTP) activity in this event. We reported that sorbitol-induced osmotic stress mediates alterations in the phosphorylation of pivotal cytoskeletal proteins, particularly Src and cofilin. Furthermore, an increase in the expression of the phosphorylated form of LMWPTP, which was followed by an augment in its catalytic activity, was observed. Of particular importance, these responses occurred in an intracellular milieu characterized by elevated levels of reduced glutathione (GSH) and increased expression of the antioxidant enzymes glutathione peroxidase and glutathione reductase. Altogether, our results suggest that hyperosmostic stress provides a favorable cellular environment to the activation of LMWPTP, which is associated with increased expression of antioxidant enzymes, high levels of GSH and inhibition of Src kinase. Finally, the real contribution of LMWPTP in the hyperosmotic stress response of keratinocytes was demonstrated through analysis of the effects of ACP1 gene knockdown in stressed and non-stressed cells. LMWPTP knockdown attenuates the effects of sorbitol induced-stress in HaCaT cells, mainly in the status of Src kinase, Rac and STAT5 phosphorylation and activity. These results describe for the first time the participation of LMWPTP in the dynamics of cytoskeleton rearrangement during exposure of human keratinocytes to hyperosmotic shock, which may contribute to cell death.
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Affiliation(s)
- Rodrigo A. Silva
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Marcelly V. Palladino
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Renan P. Cavalheiro
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Daisy Machado
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Bread L. G. Cruz
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Edgar J. Paredes-Gamero
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Maria C. C. Gomes-Marcondes
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Willian F. Zambuzzi
- Departamento de Química e Bioquímica, IBB, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Luciana Vasques
- Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Helena B. Nader
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Ana Carolina S. Souza
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Giselle Z. Justo
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Departamento de Bioquímica (Campus São Paulo) and Departamento de Ciências Biológicas (Campus Diadema), Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
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31
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Correia ACDC, Ferreira TF, Martins IRR, Macêdo CL, Monteiro FDS, Costa VCO, Tavares JF, Silva MS, Paredes-Gamero EJ, Buri MV, Rigoni VLS, Nouailhetas VLA, Da Silva BA. Essential oil from the leaves of Xylopia langsdorfiana (Annonaceae) as a possible spasmolytic agent. Nat Prod Res 2014; 29:980-4. [PMID: 25322195 DOI: 10.1080/14786419.2014.964706] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Xylopia langsdorfiana A. St.-Hil. &Tul. (Annonaceae) is popularly known in the northeast of Brazil as 'pimenteira da terra', and an essential oil (XL-OE) was extracted from its leaves. Since Xylopia species are cited in folk medicine and diterpenes from X. langsdorfiana have spasmolytic activity, this study aimed to investigate a possible spasmolytic action of XL-OE on smooth muscle models. XL-OE (243 and 729 μg/mL) showed low pharmacologic efficacy on guinea pig trachea and rat aorta and uterus. However, in guinea pig ileum, XL-OE (27-729 μg/mL) inhibited carbachol or histamine-induced phasic contractions (1 μM) in a significant and concentration-dependent manner. In addition, XL-OE (81 μg/mL) reduced fluorescence intensity in ileal myocytes stimulated by histamine, indicating a decrease in cytosolic calcium concentration, which could explain the spasmolytic activity. Thus, XL-OE proved to be a promising natural product to be used in gastrointestinal diseases acting by modulating the cytosolic calcium concentration.
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Affiliation(s)
- Ana Carolina de C Correia
- a Center for Health Sciences (CCS), Federal University of Paraíba (UFPB) , Campus I, 58.051-970, PO Box 5009, João Pessoa , Paraíba , Brazil
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32
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Barbosa CMV, Bincoletto C, Barros CC, Ferreira AT, Paredes-Gamero EJ. PLCγ2 and PKC are important to myeloid lineage commitment triggered by M-SCF and G-CSF. J Cell Biochem 2014; 115:42-51. [PMID: 24038146 DOI: 10.1002/jcb.24653] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 08/14/2013] [Indexed: 11/06/2022]
Abstract
Myeloid differentiation is a complex process whereby mature granulocytes or monocytes/macrophages are derived from a common myeloid progenitor through the coordinated action of hematopoietic cytokines. In this study, we explored the role of the Ca(2+)i signaling transduction pathway in the commitment of hematopoietic stem/progenitor cells to either the monocytic or granulocytic lineage in response to macrophage colony-stimulating factor (M-CSF) and granulocyte colony-stimulating factor (G-CSF). M-CSF and G-CSF induce cell expansion and monocyte or granulocyte differentiation, respectively, without affecting the percentage of hematopoietic progenitor cells. Colony-forming units (CFUs) and flow cytometry demonstrated the involvement of phospholipase Cγ (PLCγ) and protein kinase C (PKC) in monocyte/granulocyte commitment. In addition, using flow cytometry and RNA interference, we identified PLCγ2 as the PLCγ isoform that participates in this cell expansion and differentiation. Differences in signaling elicited by M-CSF and G-CSF were observed. The M-CSF-related effects were associated with the activation of ERK1/2 and nuclear factor of activated T-cells (NFAT); the inhibition of both molecules reduced the number of colonies in a CFU assay. In contrast, using flow cytometry and confocal evaluation, we demonstrated that G-CSF activated Jak-1 and STAT-3. Additionally, the effects induced by G-CSF were also related with the participation of Ca(2+) calmodulin kinase II and the transcription factor PU.1. STAT-3 activation and the increase of PU.1 expression were sensitive to PLC inhibition by U73122. These data show that PLCγ2 and PKC are important upstream signals that regulate myelopoiesis through cytokines, and differences in M-CSF and G-CSF downstream signaling were identified.
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33
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Bechara A, Barbosa CMV, Paredes-Gamero EJ, Garcia DM, Silva LS, Matsuo AL, Nascimento FD, Rodrigues EG, Caires ACF, Smaili SS, Bincoletto C. Palladacycle (BPC) antitumour activity against resistant and metastatic cell lines: the relationship with cytosolic calcium mobilisation and cathepsin B activity. Eur J Med Chem 2014; 79:24-33. [PMID: 24709226 DOI: 10.1016/j.ejmech.2014.03.073] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/24/2014] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
Abstract
The search for new compounds that induce p53-independent apoptosis is the focus of many studies in cancer biology because these compounds could be more specific and would overcome chemotherapy resistance. In this study, we evaluated the in vitro antitumour activity of a Biphosphinic Palladacycle Complex (BPC) and extended preclinical studies to an in vivo model. Saos-2 cells, a p53-null human osteosarcoma drug-resistant cell line, were treated with BPC in the presence or absence of a cathepsin B inhibitor and a calcium chelator (CA074 and BAPTA-AM, respectively), and several parameters related to apoptosis were evaluated. Preclinical studies were performed with mice that were intravenously inoculated with murine melanoma B16F10-Nex2 cells and treated intraperitoneally (i.p.) with BPC (8 mg/kg/day) for ten consecutive days, when lung metastatic nodules were counted. In vitro data show that BPC induces cell death in Saos-2 cells mainly by apoptosis, which was accompanied by the effector caspase-3 activation. These events are most likely related to Bax translocation and increased cytosolic calcium mobilisation, mainly from intracellular compartments. Lysosomal Membrane Permeabilisation (LMP) was also observed after 12 h of BPC exposure. Interestingly, BAPTA-AM and CA074 significantly decreased BPC cytotoxicity, suggesting that both calcium and cathepsin B are required for BPC antitumour activity. In vivo studies demonstrated that BPC protects mice against murine metastatic melanoma. In conclusion, BPC complex is an effective anticancer compound against metastatic murine melanoma. This complex is cytotoxic to the drug-resistant osteosarcoma Saos-2 human tumour cells by inducing apoptosis triggered by calcium signalling and a lysosomal-dependent pathway.
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Affiliation(s)
- Alexandre Bechara
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Biofísica, EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Biofísica, EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Daniel M Garcia
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Luís S Silva
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Alisson L Matsuo
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | | | - Elaine G Rodrigues
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Antonio C F Caires
- Centro Interdisciplinar de Investigação Bioquímica (CIIB), Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
| | - Soraya S Smaili
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Claudia Bincoletto
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil.
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Silva MCC, de Paula CAA, Ferreira JG, Paredes-Gamero EJ, Vaz AMSF, Sampaio MU, Correia MTS, Oliva MLV. Bauhinia forficata lectin (BfL) induces cell death and inhibits integrin-mediated adhesion on MCF7 human breast cancer cells. Biochim Biophys Acta Gen Subj 2014; 1840:2262-71. [PMID: 24641823 DOI: 10.1016/j.bbagen.2014.03.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/31/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Plant lectins have attracted great interest in cancer studies due to their antitumor activities. These proteins or glycoproteins specifically and reversibly bind to different types of carbohydrates or glycoproteins. Breast cancer, which presents altered glycosylation of cell surface glycoproteins, is one of the most frequent malignant diseases in women. In this work, we describe the effect of the lectin Bauhinia forficata lectin (BfL), which was purified from B. forficata Link subsp. forficata seeds, on the MCF7 human breast cancer cellular line, investigating the mechanisms involved in its antiproliferative activity. METHODS MCF7 cells were treated with BfL. Viability and adhesion alterations were evaluated using flow cytometry and western blotting. RESULTS BfL inhibited the viability of the MCF7 cell line but was ineffective on MDA-MB-231 and MCF 10A cells. It inhibits MCF7 adhesion on laminin, collagen I and fibronectin, decreases α1, α6 and β1 integrin subunit expression, and increases α5 subunit expression. BfL triggers necrosis and secondary necrosis, with caspase-9 inhibition. It also causes deoxyribonucleic acid (DNA) fragmentation, which leads to cell cycle arrest in the G2/M phase and a decrease in the expression of the regulatory proteins pRb and p21. CONCLUSION BfL shows selective cytotoxic effect and adhesion inhibition on MCF7 breast cancer cells. GENERAL SIGNIFICANCE Cell death induction and inhibition of cell adhesion may contribute to understanding the action of lectins in breast cancer.
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Affiliation(s)
- Mariana C C Silva
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Cláudia A A de Paula
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Joana G Ferreira
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil; Departamento de Biofísica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Angela M S F Vaz
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, 22460-030 Rio de Janeiro, RJ, Brazil
| | - Misako U Sampaio
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil
| | - Maria Tereza S Correia
- Departamento de Bioquímica, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego s/n, 50670-910 Recife, PE, Brazil
| | - Maria Luiza V Oliva
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020 São Paulo, SP, Brazil.
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Dias CC, Nogueira-Pedro A, Barbosa CMV, Ribeiro-Filho AC, Wasinski F, Araújo RC, de Oliveira VX, Miranda A, Paredes-Gamero EJ. Hematopoietic stem cell expansion caused by a synthetic fragment of leptin. Peptides 2013; 50:24-7. [PMID: 24090593 DOI: 10.1016/j.peptides.2013.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 12/14/2022]
Abstract
Leptin is a cytokine that regulates food intake, energy expenditure and hematopoiesis. Based on the tridimensional structure of the human leptin molecule, six fragments have been synthesized, (Ac-Lep23-47-NH2, [LEP1]; Ac-Lep48-71-NH2, [LEP2]; Ac-Lep72-88-NH2, [LEP3]; Ac-Lep92-115-NH2, [LEP4], Ac-[Ser(117)]-Lep116-140-NH2, [LEP5] and Ac-Lep141-164-NH2, [LEP6]), and their effects on hematopoiesis were evaluated. The mice were treated with 1mg/kg LEP5 for 3 days. The mature and primitive hematopoietic populations were quantified. We observed that the mature populations from the bone marrow and spleen were not affected by LEP5. However, the peptide caused at least a two-fold increase in the number of hematopoietic stem cells, the most primitive population of the bone marrow. Additionally, the number of granulocyte/macrophage colony-forming units produced by bone marrow cells in methylcellulose also increased by 40% after treatment with LEP5, and the leptin receptor was activated. These results show that the leptin fragment LEP5 is a positive modulator of the in vivo expansion of hematopoietic stem cells.
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Affiliation(s)
- Carol C Dias
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo, SP 04044-020, Brazil
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Buri MV, Domingues TM, Paredes-Gamero EJ, Casaes-Rodrigues RL, Rodrigues EG, Miranda A. Resistance to degradation and cellular distribution are important features for the antitumor activity of gomesin. PLoS One 2013; 8:e80924. [PMID: 24312251 PMCID: PMC3843672 DOI: 10.1371/journal.pone.0080924] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 08/29/2013] [Accepted: 10/18/2013] [Indexed: 12/25/2022] Open
Abstract
Many reports have shown that antimicrobial peptides exhibit anticancer abilities. Gomesin (Gm) exhibits potent cytotoxic activity against cancer cells by a membrane pore formation induced after well-orchestrated intracellular mechanisms. In this report, the replacements of the Cys by Ser or Thr, and the use D-amino acids in the Gm structure were done to investigate the importance of the resistance to degradation of the molecule with its cytotoxicity. [Thr2,6,11,15]-Gm, and [Ser2,6,11,15]-Gm exhibits low cytotoxicity, and low resistance to degradation, and after 24 h are present in localized area near to the membrane. Conversely, the use of D-amino acids in the analogue [D-Thr2,6,11,15]-D-Gm confers resistance to degradation, increases its potency, and maintained this peptide spread in the cytosol similarly to what happens with Gm. Replacements of Cys by Thr and Gln by L- or D-Pro ([D-Thr2,6,11,15, Pro9]-D-Gm, and [Thr2,6,11,15, D-Pro9]-Gm), which induced a similar β-hairpin conformation, also increase their resistance to degradation, and cytotoxicity, but after 24 h they are not present spread in the cytosol, exhibiting lower cytotoxicity in comparison to Gm. Additionally, chloroquine, a lysosomal enzyme inhibitor potentiated the effect of the peptides. Furthermore, the binding and internalization of peptides was determined, but a direct correlation among these factors was not observed. However, cholesterol ablation, which increase fluidity of cellular membrane, also increase cytotoxicity and internalization of peptides. β-hairpin spatial conformation, and intracellular localization/target, and the capability of entry are important properties of gomesin cytotoxicity.
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Affiliation(s)
- Marcus V. Buri
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Tatiana M. Domingues
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Edgar J. Paredes-Gamero
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
| | | | - Elaine Guadelupe Rodrigues
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
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Paula AJ, Araujo Júnior RT, Martinez DST, Paredes-Gamero EJ, Nader HB, Durán N, Justo GZ, Alves OL. Influence of protein corona on the transport of molecules into cells by mesoporous silica nanoparticles. ACS Appl Mater Interfaces 2013; 5:8387-8393. [PMID: 23841723 DOI: 10.1021/am4014693] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Although there are several studies reporting the promising biological efficiency of mesoporous silica nanoparticles (loaded with antitumoral drugs) against cancer cells and tumors, there are no reports on the influence of the bio-nano interface interactions on the molecular diffusion process occurring along their pores. In this context, we show here that the protein coating formed on multifunctionalized colloidal mesoporous silica nanoparticles (MSNs) dispersed in a cell culture medium decreases the release of camptothecin (CPT, a hydrophobic antitumoral drug) from the pores of MSNs. This effect is related to the adsorption of biomolecules on the nanoparticle surface, which partially blocks the pores. Parallely, the hydrophobic functionalization inside the pores can offer suitable sites for the adsorption of other molecules present in the cell culture medium depending on the hydrophobicity, size, and conformation aspects of these molecules and adsorption sites of MSNs. Thus, the molecular cargo loaded in the pores (i.e. CPT) can be replaced by specific molecules present in the dispersion medium. As a consequence, we show that a non-permeable cellular staining molecule such as SYTOX green can be incorporated in MSNs through this mechanism and internalized by cells in an artificial fashion. By extrapolating this phenomenon for applications in vivo, one has to consider now the possible manifestation of unpredicted biological effects from the use of porous silica nanoparticles and others with similar structure due to these internalization aspects.
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Affiliation(s)
- Amauri J Paula
- Laboratório de Química Biológica and †Laboratório de Química do Estado Sólido, Instituto de Química, Universidade Estadual de Campinas , 13083-970, Campinas-SP, Brazil
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Andrade SS, Azevedo ADC, Monasterio ICG, Paredes-Gamero EJ, Gonçalves GA, Bonetti TC, Albertoni G, Schor E, Barreto JA, Luiza Oliva M, Juliano L, Girão MJBC, da Silva IDCG. 17β-Estradiol and steady-state concentrations of H2O2: antiapoptotic effect in endometrial cells from patients with endometriosis. Free Radic Biol Med 2013; 60:63-72. [PMID: 23416363 DOI: 10.1016/j.freeradbiomed.2013.01.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 01/25/2013] [Accepted: 01/28/2013] [Indexed: 02/04/2023]
Abstract
Increased levels of hydrogen peroxide (H2O2) can initiate protective responses to limit or repair oxidative damage. However, H2O2 signals also fine-tune responses to growth factors and cytokines controlling cell division, differentiation, and proliferation. Because 17β-estradiol (E2) also plays important roles in these processes, and is considered a major risk factor in the development and progression of endometriosis, this study evaluated whether E2 has an antiapoptotic effect on oxidative stress in endometrial cells in combination with steady-state H2O2 levels ([H2O2]ss). Endometrial stromal cells were prepared from the eutopic endometrium of 18 women with and without endometriosis to produce primary cells. These cells were stimulated with E2 for 20h, exposed to [H2O2]ss, and examined for cell viability, proliferation, and apoptosis. The endometrial cells from women with endometriosis maintained the steady state for 120min at high H2O2 concentrations. When they were pretreated with E2 and exposed to [H2O2]ss, a decrease in apoptosis level was observed compared to the control cells (p<0.01). The endometrial cells from patients with endometriosis subjected to both E2 and [H2O2]ss showed increased ERK phosphorylation. These findings suggested that H2O2 is a signaling molecule that downregulates apoptosis in endometrial cells, supporting the fact that endometriosis, albeit a benign disease, shares some features with cancer such as decreased catalase levels. These results link the E2 effects on [H2O2]ss to resistance to apoptosis and progression of endometriosis.
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Affiliation(s)
- Sheila S Andrade
- Department of Gynecology, São Paulo Federal University, São Paulo 04044, Brazil.
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Moraes VWR, Caires ACF, Paredes-Gamero EJ, Rodrigues T. Organopalladium compound 7b targets mitochondrial thiols and induces caspase-dependent apoptosis in human myeloid leukemia cells. Cell Death Dis 2013; 4:e658. [PMID: 23744358 PMCID: PMC3702286 DOI: 10.1038/cddis.2013.190] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 05/04/2013] [Accepted: 05/07/2013] [Indexed: 12/11/2022]
Abstract
The advances in the treatment of chronic myeloid leukemia (CML) during the last years were also accompanied by the development of evading strategies by tumor cells, resulting in chemotherapy resistance in some patients. Patented organopalladium compounds derived from the reaction of N,N-dimethyl-1-phenethylamine (dmpa) with [1,2-ethanebis(diphenylphosphine)] (dppe) exhibited a potent antitumor activity in vivo and in vitro in melanoma cells. We showed here that the cyclopalladated derivative [Pd2(R(+))C(2), N-dmpa)2(μ-dppe)Cl2], named compound 7b, was highly effective to promote cell death in the K562 human leukemia cells and its mechanisms of action were investigated. It was shown that compound 7b was able to promote exclusively apoptotic cell death in K562 cells associated to cytochrome c release and caspase 3 activation. This cytotoxic effect was not observed in normal peripheral mononuclear blood cells. The compound 7b-induced intrinsic apoptotic pathway was triggered by the protein thiol oxidation that resulted in the dissipation of the mitochondrial transmembrane potential. The preventive effect of the dithiothreitol on the compound 7b-induced cell death and all downstream events associated to apoptosis confirmed that death signal was elicited by the thiol oxidation. These findings contribute to the elucidation of the palladacycle 7b-induced cell death mechanism and present this compound as a promising drug in the CML antitumor chemotherapy.
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Affiliation(s)
- V W R Moraes
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), São Paulo, Brazil
| | - A C F Caires
- Centro Interdisciplinar de Investigação Bioquímica (CIIB), Universidade de Mogi das Cruzes, São Paulo, Brazil
| | - E J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - T Rodrigues
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), São Paulo, Brazil
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40
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de Carvalho F, Leme AFP, Matsuo AL, Matsuda SS, Pauletti BA, Braga WMT, Paredes-Gamero EJ, de Lourdes LF Chauffaille M, Colleoni GWB. Analysis of protein profile expressed on the membrane surface of plasma cells, stromal cells and mononuclear cells from bone marrow microenvironment of multiple myeloma patients by mass spectrometry. BMC Proc 2013. [PMCID: PMC3624661 DOI: 10.1186/1753-6561-7-s2-p23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Souza Queiroz J, Barbosa CMV, da Rocha MC, Bincoletto C, Paredes-Gamero EJ, de Souza Queiroz ML, Palermo Neto J. Chlorella vulgaris treatment ameliorates the suppressive effects of single and repeated stressors on hematopoiesis. Brain Behav Immun 2013; 29:39-50. [PMID: 23246529 DOI: 10.1016/j.bbi.2012.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 11/25/2012] [Accepted: 12/03/2012] [Indexed: 12/18/2022] Open
Abstract
The reports regarding the mutual influence between the central nervous system and the immune system constitute a vast and somewhat controversial body of literature. Stress is known to disturb homeostasis, impairing immunological functions. In this study, we investigated the hematopoietic response of Chlorella vulgaris (CV)-treated mice exposed to single (SST) and repeated stress (RST). We observed a reduction in the numbers of hematopoietic progenitors (HP) in the bone marrow and long-term bone marrow cultures (LTBMC) using flow cytometry and a coinciding decrease in the number of granulocyte-macrophage colonies (CFU-GM) after treatment with both stressors, but SST caused a more profound suppression. We observed a proportional increase in the colony-stimulating activity (CSA) of the serum of animals subjected to SST or RST. In the bone marrow, SST and RST induced a decrease in both mature myeloid and lymphoid populations but did not affect pluripotent hematopoietic progenitors (Lin(-)Sca-1(+)c-kit(+), LSK), and again, a more profound suppression was observed after SST. We further quantified the levels of interleukin-1α (IL-1α) and interleukin-6 (IL-6) and the number of myeloid cells in LTBMC. Both SST and RST reduced the levels of these cytokines to similar degrees. The myeloid population was also reduced in LTBMC, and SST induced a more intense suppression. Importantly, CV treatment prevented the changes produced by SST and RST in all of the parameters evaluated. Together, our results suggest that CV treatment is an effective tool for the prophylaxis of myelosuppression caused by single or repeated stressors.
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Affiliation(s)
- Julia Souza Queiroz
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Brazil; Grupo de pesquisa em Neuroimunomodulação, Faculdade de Medicina Veterinária, Universidade de São Paulo, São Paulo/SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo/SP, Brazil
| | - Michelle C da Rocha
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Brazil
| | - Claudia Bincoletto
- Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo/SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo/SP, Brazil
| | - Mary L de Souza Queiroz
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Brazil
| | - João Palermo Neto
- Grupo de pesquisa em Neuroimunomodulação, Faculdade de Medicina Veterinária, Universidade de São Paulo, São Paulo/SP, Brazil.
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Paredes-Gamero EJ, Nogueira-Pedro A, Miranda A, Justo GZ. Hematopoietic modulators as potential agents for the treatment of leukemia. Front Biosci (Elite Ed) 2013; 5:130-40. [PMID: 23276976 DOI: 10.2741/e602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Leukemias are the most common malignancy of childhood and have the highest mortality among aging people. Leukemias are a group of blood disorders characterized by an accumulation of leukemic cells in the peripheral blood of patients as a result of disturbances in proliferation and differentiation. Refractory leukemia remains the most common therapeutic challenge. In recent years, the presence of a cancer stem cell population in leukemias has been proposed as a cause for the refractory phenomenon. Insights into the cellular and molecular features of leukemia led to a new point of view in the choice of novel therapeutic agents. New agents for the treatment of this disease should selectively target leukemia stem cells or exhibit higher cytotoxic effects in cancer cells than in normal cells. A special interest is focused on anticancer agents from biological and natural sources that can be used in the treatment of leukemia. This review discusses the characteristics of some of these potential new agents.
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Affiliation(s)
- Edgar J Paredes-Gamero
- Departamento de Biofisica, Universidade Federal de Sao Paulo, Rua Botucatu 862, 2 Andar, CEP, 04023-062 Sao Paulo, Brazil.
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Paredes-Gamero EJ, Medeiros VP, Lima MA, Accardo CM, Farias EHC, Sassaki GI, Campana PT, Miranda A, Ferreira AT, Tersariol ILS, Nader HB. Chemical reduction of carboxyl groups in heparin abolishes its vasodilatory activity. J Cell Biochem 2012; 113:1359-67. [PMID: 22134887 DOI: 10.1002/jcb.24008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Previous studies have shown that heparin induces vascular relaxation via integrin-dependent nitric oxide (NO)-mediated activation of the muscarinic receptor. The aim of this study was to identify the structural features of heparin that are necessary for the induction of vasodilatation. To address this issue, we tested heparin from various sources for their vasodilatation activities in the rat aorta ring. Structural and chemical characteristics of heparin, such as its molecular weight and substitution pattern, did not show a direct correlation with the vasodilation activity. Principal component analysis (PCA) of circular dichroism (CD), (1)H-nuclear magnetic resonance (NMR) and vasodilation activity measurements confirmed that there is no direct relationship between the physico-chemical nature and vasodilation activity of the tested heparin samples. To further understand these observations, unfractionated heparin (UFH) from bovine intestinal mucosa, which showed the highest relaxation effect, was chemically modified. Interestingly, non-specific O- and N-desulfation of heparin reduced its anticoagulant, antithrombotic, and antihemostatic activities, but had no effect on its ability to induce vasodilation. On the other hand, chemical reduction of the carboxyl groups abolished heparin-induced vasodilation and reduced the affinity of heparin toward the extracellular matrix (ECM). In addition, dextran and dextran sulfate (linear non-sulfated and highly sulfated polysaccharides, respectively) did not induce significant relaxation, showing that the vasodilation activity of polysaccharides is neither charge-dependent nor backbone unspecific. Our results suggest that desulfated heparin molecules may be used as vasoactive agents due to their low side effects.
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Affiliation(s)
- Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio 100, 04044-020, São Paulo, SP, Brazil.
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Lungato L, Gazarini ML, Paredes-Gamero EJ, Tersariol ILS, Tufik S, D'Almeida V. Sleep deprivation impairs calcium signaling in mouse splenocytes and leads to a decreased immune response. Biochim Biophys Acta Gen Subj 2012; 1820:1997-2006. [PMID: 23000491 DOI: 10.1016/j.bbagen.2012.09.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/20/2012] [Accepted: 09/14/2012] [Indexed: 12/20/2022]
Abstract
BACKGROUND Sleep is a physiological event that directly influences health by affecting the immune system, in which calcium (Ca(2+)) plays a critical signaling role. We performed live cell measurements of cytosolic Ca(2+) mobilization to understand the changes in Ca(2+) signaling that occur in splenic immune cells after various periods of sleep deprivation (SD). METHODS Adult male mice were subjected to sleep deprivation by platform technique for different periods (from 12 to 72h) and Ca(2+) intracellular fluctuations were evaluated in splenocytes by confocal microscopy. We also performed spleen cell evaluation by flow cytometry and analyzed intracellular Ca(2+) mobilization in endoplasmic reticulum and mitochondria. Additionally, Ca(2+) channel gene expression was evaluated RESULTS Splenocytes showed a progressive loss of intracellular Ca(2+) maintenance from endoplasmic reticulum (ER) stores. Transient Ca(2+) buffering by the mitochondria was further compromised. These findings were confirmed by changes in mitochondrial integrity and in the performance of the store operated calcium entry (SOCE) and stromal interaction molecule 1 (STIM1) Ca(2+) channels. CONCLUSIONS AND GENERAL SIGNIFICANCE These novel data suggest that SD impairs Ca(2+) signaling, most likely as a result of ER stress, leading to an insufficient Ca(2+) supply for signaling events. Our results support the previously described immunosuppressive effects of sleep loss and provide additional information on the cellular and molecular mechanisms involved in sleep function.
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Affiliation(s)
- Lisandro Lungato
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
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Paredes-Gamero EJ, Casaes-Rodrigues RL, Moura GEDD, Domingues TM, Buri MV, Ferreira VHC, Trindade ES, Moreno-Ortega AJ, Cano-Abad MF, Nader HB, Ferreira AT, Miranda A, Justo GZ, Tersariol ILS. Cell-Permeable Gomesin Peptide Promotes Cell Death by Intracellular Ca2+ Overload. Mol Pharm 2012; 9:2686-97. [DOI: 10.1021/mp300251j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | | | | | | | | | - Victor H. C. Ferreira
- Departamento de Biologia Celular,
Universidade Federal do Paraná, PO Box 19031, 81531-990, Curitiba,
Brazil
| | - Edvaldo S. Trindade
- Departamento de Biologia Celular,
Universidade Federal do Paraná, PO Box 19031, 81531-990, Curitiba,
Brazil
| | - Ana J. Moreno-Ortega
- Instituto Teófilo
Hernando, Servicio de Farmacología Clínica, Instituto
de Investigación Sanitaria, Hospital Universitario de la Princesa,
Universidad Autónoma de Madrid, Madrid, Spain
| | - María F. Cano-Abad
- Instituto Teófilo
Hernando, Servicio de Farmacología Clínica, Instituto
de Investigación Sanitaria, Hospital Universitario de la Princesa,
Universidad Autónoma de Madrid, Madrid, Spain
| | | | | | | | - Giselle Z. Justo
- Departamento de Ciências Biológicas,
Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Ivarne L. S. Tersariol
- Centro Interdisciplinar de Investigação
Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes,
SP, Brazil
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Paredes-Gamero EJ, Martins MNC, Cappabianco FAM, Ide JS, Miranda A. Characterization of dual effects induced by antimicrobial peptides: regulated cell death or membrane disruption. Biochim Biophys Acta Gen Subj 2012; 1820:1062-72. [PMID: 22425533 DOI: 10.1016/j.bbagen.2012.02.015] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 02/17/2012] [Accepted: 02/24/2012] [Indexed: 12/22/2022]
Abstract
BACKGROUND Some reports describe lysis mechanisms by antimicrobial peptides (AMPs), while others describe the activation of regulated cell death. In this study, we compare the cell death-inducing activities of four β-hairpin AMPs (gomesin, protegrin, tachyplesin and polyphemusin II) along with their linear analogs in the human erythroleukemia K562 cell line to investigate the relationship between their structure and activity. METHODS K562 cells were exposed to AMPs. Morphological and biochemistry alterations were evaluated using light microscopy, confocal microscopy and flow cytometry. RESULTS Gomesin and protegrin displayed cytotoxic properties that their linear counterparts did not. Tachyplesin and polyphemusin II and also their linear analogs induced cell death. We were able to distinguish two ways in which these AMPs induced cell death. Lower concentrations of AMPs induced controlled cell death mechanisms. Gomesin, tachyplesin and linear-tachyplesin promoted apoptosis that was characterized by annexin labeling, sensitivity to Z-VAD, and caspase-3 activation, but was also inhibited by necrostatin-1. Gomesin and protegrin induced cell death was dependent on intracellular Ca2+ mechanisms and the participation of free radicals was observed in protegrin induced cell death. Polyphemusin II and its linear analog mainly induced necrosis. Conversely, treatment with higher concentrations of AMPs primarily resulted in cell membrane disruption, but with clearly different patterns of action for each AMP tested. CONCLUSION Different actions by β-hairpin AMPs were observed at low concentrations and at higher concentrations despite the structure similarity. GENERAL SIGNIFICANCE Controlled intracellular mechanism and direct membrane disruption were clearly distinguished helping to understand the real action of AMPs in mammalian cells.
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Affiliation(s)
- Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil.
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Calgarotto AK, da Silva Pereira GJ, Bechara A, Paredes-Gamero EJ, Barbosa CMV, Hirata H, de Souza Queiroz ML, Smaili SS, Bincoletto C. Autophagy inhibited Ehrlich ascitic tumor cells apoptosis induced by the nitrostyrene derivative compounds: relationship with cytosolic calcium mobilization. Eur J Pharmacol 2011; 678:6-14. [PMID: 22227332 DOI: 10.1016/j.ejphar.2011.12.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 12/15/2011] [Accepted: 12/17/2011] [Indexed: 01/07/2023]
Abstract
Apoptosis induction is often associated with increased autophagy, indicating interplay between these two important cellular events in cell death and survival. In this study, the programmed cell death and autophagy induced by two nitrostyrene derivative compounds (NTS1 and NTS2) was studied using the tumorigenic Ehrlich ascitic tumor (EAT) cells. EAT cells were highly sensitive to NTS1 and NTS2 cytotoxicity in a dose-dependent manner. NTS1 and NTS2 IC(50) was less than 15.0μM post 12h incubation. Apoptosis was primarily induced by both compounds, as demonstrated by an increase in Annexin-V positive cells, concurrently with cytochrome c release from mitochondria to cytosol and caspase-3 activation. Although cytosolic Ca(2+) mobilization is involved in autophagy as well as apoptosis in response to cellular stress in many cancer cell types, from the two nitrostyrene derivative compounds studied, mainly NTS1 mobilized this ion and disparate autophagy in EAT cells. These results suggest that EAT induced cell death by NTS1 and NTS2 involved a Ca(2+)-dependent and a Ca(2+)-independent pathways, respectively. In accordance with these results, the treatment of EAT cells with 3 methyladenine (3-MA), an autophagy inhibitor; significantly increased the number of apoptotic cells after NTS1 treatment, suggesting that pharmacological modulation of autophagy augments the NTS1 efficacy. Thus, we denote the importance of studies involving autophagy and apoptosis during pre-clinical studies of new drugs with anticancer properties.
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Affiliation(s)
- Andrana K Calgarotto
- Departamento de Farmacologia, FCM, Universidade Estadual de Campinas, UNICAMP, Campinas/SP, Brazil
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Santos RF, Martins IRR, Travassos RA, Tavares JF, Silva MS, Paredes-Gamero EJ, Ferreira AT, Nouailhetas VLA, Aboulafia J, Rigoni VLS, da Silva BA. Ent-7α-acetoxytrachyloban-18-oic acid and ent-7α-hydroxytrachyloban-18-oic acid from Xylopia langsdorfiana A. St-Hil. & Tul. modulate K(+) and Ca(2+) channels to reduce cytosolic calcium concentration on guinea pig ileum. Eur J Pharmacol 2011; 678:39-47. [PMID: 22214536 DOI: 10.1016/j.ejphar.2011.12.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 12/15/2011] [Accepted: 12/17/2011] [Indexed: 10/14/2022]
Abstract
In this study we investigated the mechanism underlying the spasmolytic action of ent-7α-acetoxytrachyloban-18-oic acid (trachylobane-360) and ent-7α-hydroxytrachyloban-18-oic acid (trachylobane-318), diterpenes obtained from Xylopia langsdorfiana, on guinea pig ileum. Both compounds inhibited histamine-induced cumulative contractions (slope=3.5±0.9 and 4.4±0.7) that suggests a noncompetitive antagonism to histaminergic receptors. CaCl(2)-induced contractions were nonparallelly and concentration-dependently reduced by both diterpenes, indicating blockade of calcium influx through voltage-dependent calcium channels (Ca(v)). The Ca(v) participation was confirmed since both trachylobanes equipotently relaxed ileum pre-contracted with S-(-)-Bay K8644 (EC(50)=3.5±0.7×10-(5) and 1.1±0.2×10-(5)M) and KCl (EC(50)=5.5±0.3×10-(5) and 1.4±0.2×10-(5)M). K(+) channels participation was confirmed since diterpene-induced relaxation curves were significantly shifted to right in the presence of 5mM tetraethylammonium (TEA(+)) (EC(50)=0.5±0.04×10-(4) and 2.0±0.5×10-(5)M). ATP-sensitive K(+) channel (K(ATP)), voltage activated K(+) channels (K(V)), small conductance calcium-activated K(+) channels (SK(Ca)) or big conductance calcium-activated K(+) channels (BK(Ca)) did not seem to participate of trachylobane-360 spasmolytic action. However trachylobane-318 modulated positively K(ATP), K(V) and SK(Ca) (EC(50)=1.1±0.3×10-(5), 0.7±0.2×10-(5) and 0.7±0.2×10-(5)M), but not BK(Ca). A fluorescence analysis technique confirmed the decrease of cytosolic calcium concentration ([Ca(2+)](c)) induced by both trachylobanes in ileal myocytes. In conclusion, trachylobane-360 and trachylobane-318 induced spasmolytic activity by K(+) channel positive modulation and Ca(2+) channel blockade, which results in [Ca(2+)](c) reduction at cellular level leading to smooth muscle relaxation.
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Affiliation(s)
- Rosimeire F Santos
- Departamento de Bioquímica e Farmacologia, Universidade Federal do Piauí (UFPI), Teresina, Piauí, Brazil
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Queiroz ML, da Rocha MC, Torello CO, de Souza Queiroz J, Bincoletto C, Morgano MA, Romano MR, Paredes-Gamero EJ, Barbosa CM, Calgarotto AK. Chlorella vulgaris restores bone marrow cellularity and cytokine production in lead-exposed mice. Food Chem Toxicol 2011; 49:2934-41. [DOI: 10.1016/j.fct.2011.06.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 05/14/2011] [Accepted: 06/17/2011] [Indexed: 01/18/2023]
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Leon CMMP, Barbosa CMV, Justo GZ, Borelli P, Resende JD, de Oliveira JSR, Ferreira AT, Paredes-Gamero EJ. Requirement for PLCγ2 in IL-3 and GM-CSF-stimulated MEK/ERK phosphorylation in murine and human hematopoietic stem/progenitor cells. J Cell Physiol 2011; 226:1780-92. [PMID: 21506110 DOI: 10.1002/jcp.22507] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Even though the involvement of intracellular Ca(2+) Ca(i)(2+) in hematopoiesis has been previously demonstrated, the relationship between Ca(i)(2+) signaling and cytokine-induced intracellular pathways remains poorly understood. Herein, the molecular mechanisms integrating Ca(2+) signaling with the extracellular signal-regulated kinase 1/2 (ERK1/2) pathway in primary murine and human hematopoietic stem/progenitor cells stimulated by IL-3 and GM-CSF were studied. Our results demonstrated that IL-3 and GM-CSF stimulation induced increased inositol 1,4,5-trisphosphate (IP(3) ) levels and Ca(i)(2+) release in murine and human hematopoietic stem/progenitor cells. In addition, Ca(i)(2+) signaling inhibitors, such as inositol 1,4,5-trisphosphate receptor antagonist (2-APB), PKC inhibitor (GF109203), and CaMKII inhibitor (KN-62), blocked phosphorylation of MEK activated by IL-3 and GM-CSF, suggesting the participation of Ca(2+) -dependent kinases in MEK activation. In addition, we identify phospholipase Cγ2 (PLCγ2) as a PLCγ responsible for the induction of Ca(2+) release by IL-3 and GM-CSF in hematopoietic stem/progenitor cells. Furthermore, the PLCγ inhibitor U73122 significantly reduced the numbers of granulocyte-macrophage colony-forming units after cytokine stimulation. Similar results were obtained in both murine and human hematopoietic stem/progenitor cells. Taken together, these data indicate a role for PLCγ2 and Ca(2+) signaling through the modulation of MEK in both murine and human hematopoietic stem/progenitor cells.
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Affiliation(s)
- Carlos M M P Leon
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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