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de Cristo Soares Alves A, Rosane Dallemole D, Medeiro Ciocheta T, Ferreira Weber A, da Silva Gündel S, Visioli F, Figueiró F, Stanisçuaski Guterres S, Raffin Pohlmann A. Chicken embryo model for in vivo acute toxicological and antitumor efficacy evaluation of lipid nanocarrier containing doxorubicin. Int J Pharm X 2023; 6:100193. [PMID: 38204452 PMCID: PMC10777201 DOI: 10.1016/j.ijpx.2023.100193] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Abstract
Nanoencapsulation of chemotherapeutics, including doxorubicin, can endow the formulations with unique properties, such as a decrease in adverse effects and toxicity. The chicken embryo model is an alternative and well-accepted strategy for evaluating the toxicity and efficacy of drugs and nanoformulations. Therefore, this study proposes the development of a new lipid nanocarrier for doxorubicin delivery (NanoLip-Dox) and posterior evaluation of toxicological profile and antitumoral efficacy against a breast tumor in chicken embryos. NanoLip-Dox showed a unimodal particle size (< 150 nm), negative zeta potential (-19.5 mV), absence of drug crystals, drug content of 0.099 mg·mL-1, and high entrapment efficiency (95%). NanoLip-Dox did not cause toxicity in the chicken embryos; in contrast, doxorubicin hydrochloride induced moderate irritation in the chorioallantoic membrane (at 862.1 μmol·L-1), a survival rate of 50% (at 1.7 μmol·L-1), and an increase in aspartate aminotransferase (at 862.1, 344.8, and 172.4 μmol·L-1). In addition, NanoLip-Dox (at 1.7 μmol·L-1) showed potent antitumor efficacy with a high tumor remission percentage (40.9 ± 9.7%) compared to the control group (8.6 ± 14.8%). These findings together with the absence of toxicity concerning morphological characteristics, weights of embryos and organs, hematologic parameters, and enzymatic activity (alanine aminotransferase, aspartate aminotransferase, and creatinine) suggest the safety and efficacy of NanoLip-Dox.
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Affiliation(s)
- Aline de Cristo Soares Alves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Danieli Rosane Dallemole
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Taiane Medeiro Ciocheta
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Augusto Ferreira Weber
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Samanta da Silva Gündel
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Fernanda Visioli
- Programa de Pós-Graduação em Odontologia, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS 90035-003, Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, RS 90035-903, Brazil
| | - Fabricio Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
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Bastidas JG, Maurmann N, Scholl JN, Weber AF, Silveira RP, Figueiró F, Stimamiglio MA, Marcon B, Correa A, Pranke P. Secretome of stem cells from human exfoliated deciduous teeth (SHED) and its extracellular vesicles improves keratinocytes migration, viability, and attenuation of H 2 O 2 -induced cytotoxicity. Wound Repair Regen 2023; 31:827-841. [PMID: 38038971 DOI: 10.1111/wrr.13131] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/14/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023]
Abstract
Therapies for wound healing using the secretome and extracellular vesicles (EVs) of mesenchymal stem/stromal cells have been shown to be successful in preclinical studies. This study aimed to characterise the protein content of the secretome from stem cells from human exfoliated deciduous teeth (SHED) and analyse the in vitro effects of SHED-conditioned medium (SHED-CM) and SHED extracellular vesicles (SHED-EVs) on keratinocytes. EVs were isolated and characterised. The keratinocyte viability and migration of cells treated with SHED-EVs and conditioned medium (CM) were evaluated. An HaCaT apoptosis model induced by H2 O2 in vitro was performed with H2 O2 followed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and live/dead assays. Finally, the expression of vascular endothelial growth factor (VEGF) in keratinocytes treated with secretome and EVs was evaluated by immunofluorescence staining and confirmed with RT-qPCR. SHED-EVs revealed a cup-shaped morphology with expression of the classical markers for exosomes CD9 and CD63, and a diameter of 181 ± 87 nm. The internalisation of EVs by HaCaT cells was confirmed by fluorescence microscopy. Proteomic analysis identified that SHED-CM is enriched with proteins related to stress response and development, including cytokines (CXCL8, IL-6, CSF1, CCL2) and growth factors (IGF2, MYDGF, PDGF). The results also indicated that 50% CM and 0.4-0.6 μg/mL EVs were similarly efficient for improving keratinocyte viability, migration, and attenuation of H2 O2 -induced cytotoxicity. Additionally, expression of VEGF on keratinocytes increased when treated with SHED secretome and EVs. Furthermore, VEGF gene expression in keratinocytes increased significantly when treated with SHED secretome and EVs. Both SHED-CM and SHED-EVs may therefore be promising therapeutic tools for accelerating re-epithelialization in wound healing.
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Affiliation(s)
- Juliana Girón Bastidas
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Natasha Maurmann
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Juliete Nathali Scholl
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Augusto Ferreira Weber
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Raíssa Padilha Silveira
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fabricio Figueiró
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Biochemistry Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marco Augusto Stimamiglio
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Bruna Marcon
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Alejandro Correa
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Patricia Pranke
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Stem Cell Research Institute (Instituto de Pesquisa com Células-tronco), Porto Alegre, Rio Grande do Sul, Brazil
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Grun LK, Maurmann RM, Scholl JN, Fogaça ME, Schmitz CRR, Dias CK, Gasparotto J, Padoin AV, Mottin CC, Klamt F, Figueiró F, Jones MH, Filippi-Chiela EC, Guma FCR, Barbé-Tuana FM. Obesity drives adipose-derived stem cells into a senescent and dysfunctional phenotype associated with P38MAPK/NF-KB axis. Immun Ageing 2023; 20:51. [PMID: 37821967 PMCID: PMC10566105 DOI: 10.1186/s12979-023-00378-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/19/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Adipose-derived stem cells (ADSC) are multipotent cells implicated in tissue homeostasis. Obesity represents a chronic inflammatory disease associated with metabolic dysfunction and age-related mechanisms, with progressive accumulation of senescent cells and compromised ADSC function. In this study, we aimed to explore mechanisms associated with the inflammatory environment present in obesity in modulating ADSC to a senescent phenotype. We evaluated phenotypic and functional alterations through 18 days of treatment. ADSC were cultivated with a conditioned medium supplemented with a pool of plasma from eutrophic individuals (PE, n = 15) or with obesity (PO, n = 14), and compared to the control. RESULTS Our results showed that PO-treated ADSC exhibited decreased proliferative capacity with G2/M cycle arrest and CDKN1A (p21WAF1/Cip1) up-regulation. We also observed increased senescence-associated β-galactosidase (SA-β-gal) activity, which was positively correlated with TRF1 protein expression. After 18 days, ADSC treated with PO showed augmented CDKN2A (p16INK4A) expression, which was accompanied by a cumulative nuclear enlargement. After 10 days, ADSC treated with PO showed an increase in NF-κB phosphorylation, while PE and PO showed an increase in p38MAPK activation. PE and PO treatment also induced an increase in senescence-associated secretory phenotype (SASP) cytokines IL-6 and IL-8. PO-treated cells exhibited decreased metabolic activity, reduced oxygen consumption related to basal respiration, increased mitochondrial depolarization and biomass, and mitochondrial network remodeling, with no superoxide overproduction. Finally, we observed an accumulation of lipid droplets in PO-treated ADSC, implying an adaptive cellular mechanism induced by the obesogenic stimuli. CONCLUSIONS Taken together, our data suggest that the inflammatory environment observed in obesity induces a senescent phenotype associated with p38MAPK/NF-κB axis, which stimulates and amplifies the SASP and is associated with impaired mitochondrial homeostasis.
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Affiliation(s)
- L K Grun
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
| | - R M Maurmann
- Graduate Program in Cellular and Molecular Biology, School of Health, Sciences, and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - J N Scholl
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - M E Fogaça
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - C R R Schmitz
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - C K Dias
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - J Gasparotto
- Institute of Biomedical Sciences, Federal University at Alfenas, Alfenas, Brazil
| | - A V Padoin
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - C C Mottin
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - F Klamt
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F Figueiró
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - M H Jones
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - E C Filippi-Chiela
- Institute of Basic Health Sciences, Department of Morphological Sciences, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Center for Biotechnology, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F C R Guma
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F M Barbé-Tuana
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Graduate Program in Cellular and Molecular Biology, School of Health, Sciences, and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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Pietrobon AJ, Andrejew R, Custódio RWA, Oliveira LDM, Scholl JN, Teixeira FME, de Brito CA, Glaser T, Kazmierski J, Goffinet C, Turdo AC, Yendo T, Aoki V, Figueiró F, Battastini AM, Ulrich H, Benard G, Duarte AJDS, Sato MN. Dysfunctional purinergic signaling correlates with disease severity in COVID-19 patients. Front Immunol 2022; 13:1012027. [PMID: 36248842 PMCID: PMC9562777 DOI: 10.3389/fimmu.2022.1012027] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/14/2022] [Indexed: 11/30/2022] Open
Abstract
Ectonucleotidases modulate inflammatory responses by balancing extracellular ATP and adenosine (ADO) and might be involved in COVID-19 immunopathogenesis. Here, we explored the contribution of extracellular nucleotide metabolism to COVID-19 severity in mild and severe cases of the disease. We verified that the gene expression of ectonucleotidases is reduced in the whole blood of patients with COVID-19 and is negatively correlated to levels of CRP, an inflammatory marker of disease severity. In line with these findings, COVID-19 patients present higher ATP levels in plasma and reduced levels of ADO when compared to healthy controls. Cell type-specific analysis revealed higher frequencies of CD39+ T cells in severely ill patients, while CD4+ and CD8+ expressing CD73 are reduced in this same group. The frequency of B cells CD39+CD73+ is also decreased during acute COVID-19. Interestingly, B cells from COVID-19 patients showed a reduced capacity to hydrolyze ATP into ADP and ADO. Furthermore, impaired expression of ADO receptors and a compromised activation of its signaling pathway is observed in COVID-19 patients. The presence of ADO in vitro, however, suppressed inflammatory responses triggered in patients’ cells. In summary, our findings support the idea that alterations in the metabolism of extracellular purines contribute to immune dysregulation during COVID-19, possibly favoring disease severity, and suggest that ADO may be a therapeutic approach for the disease.
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Affiliation(s)
- Anna Julia Pietrobon
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Roberta Andrejew
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Ricardo Wesley Alberca Custódio
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
| | - Luana de Mendonça Oliveira
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Juliete Nathali Scholl
- Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Franciane Mouradian Emidio Teixeira
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Cyro Alves de Brito
- Technical Division of Medical Biology, Immunology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | - Talita Glaser
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Julia Kazmierski
- Institute of Virology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Department and Division of Infectious and Parasitic Diseases, Berlin Institute of Health, Berlin, Germany
| | - Christine Goffinet
- Institute of Virology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Department and Division of Infectious and Parasitic Diseases, Berlin Institute of Health, Berlin, Germany
| | - Anna Claudia Turdo
- Department and Division of Infectious and Parasitic Diseases, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, Brazil
| | - Tatiana Yendo
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
| | - Valeria Aoki
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
| | - Fabricio Figueiró
- Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Ana Maria Battastini
- Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Henning Ulrich
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Gill Benard
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
| | - Alberto Jose da Silva Duarte
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
| | - Maria Notomi Sato
- Laboratory of Dermatology and Immunodeficiencies, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, Brazil
- *Correspondence: Maria Notomi Sato,
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Costa L, de Souza A, Scholl J, Figueiró F, Battastini A, Jaques JDS, Zanoelo F. Biochemical characterization of adenosine deaminase (CD26; EC 3.5.4.4) activity in human lymphocyte-rich peripheral blood mononuclear cells. Braz J Med Biol Res 2021; 54:e10850. [PMID: 34037096 PMCID: PMC8148981 DOI: 10.1590/1414-431x2020e10850] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 03/02/2021] [Indexed: 11/22/2022] Open
Abstract
The conversion of adenosine to inosine is catalyzed by adenosine deaminase (ADA) (EC 3.5.4.4), which has two isoforms in humans (ADA1 and ADA2) and belongs to the zinc-dependent hydrolase family. ADA modulates lymphocyte function and differentiation, and regulates inflammatory and immune responses. This study investigated ADA activity in lymphocyte-rich peripheral blood mononuclear cells (PBMCs) in the absence of disease. The viability of lymphocyte-rich PBMCs isolated from humans and kept in 0.9% saline solution at 4-8°C was analyzed over 20 h. The incubation time and biochemical properties of the enzyme, such as its Michaelis-Menten constant (Km) and maximum velocity (Vmax), were characterized through the liberation of ammonia from the adenosine substrate. Additionally, the presence of ADA protein on the lymphocyte surface was determined by flow cytometry using an anti-CD26 monoclonal human antibody, and the PBMCs showed long-term viability after 20 h. The ADA enzymatic activity was linear from 15 to 120 min of incubation, from 2.5 to 12.5 µg of protein, and pH 6.0 to 7.4. The Km and Vmax values were 0.103±0.051 mM and 0.025±0.001 nmol NH3·mg-1·s-1, respectively. Zinc and erythro-9-(2-hydroxy-3-nonyl) adenine (EHNA) inhibited enzymatic activity, and substrate preference was given to adenosine over 2'-deoxyadenosine and guanosine. The present study provides the biochemical characterization of ADA in human lymphocyte-rich PBMCs, and indicates the appropriate conditions for enzyme activity quantification.
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Affiliation(s)
- L.R. Costa
- Laboratório de Bioquímica Geral e de Microrganismos, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Campo Grande, MS, Brasil
- Programa Multicêntrico de Pós-Graduação em Bioquímica e Biologia Molecular-SBBq, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - A.K.Y. de Souza
- Laboratório de Bioquímica Geral e de Microrganismos, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Campo Grande, MS, Brasil
| | - J.N. Scholl
- Departamento de Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - F. Figueiró
- Departamento de Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - A.M.O. Battastini
- Departamento de Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, Instituto de Ciências Básicas e da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - J.A. dos Santos Jaques
- Laboratório de Bioquímica Geral e de Microrganismos, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Campo Grande, MS, Brasil
- Programa Multicêntrico de Pós-Graduação em Bioquímica e Biologia Molecular-SBBq, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - F.F. Zanoelo
- Laboratório de Bioquímica Geral e de Microrganismos, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Campo Grande, MS, Brasil
- Programa Multicêntrico de Pós-Graduação em Bioquímica e Biologia Molecular-SBBq, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
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6
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Battastini AMO, Figueiró F, Leal DBR, Doleski PH, Schetinger MRC. CD39 and CD73 as Promising Therapeutic Targets: What Could Be the Limitations? Front Pharmacol 2021; 12:633603. [PMID: 33815115 PMCID: PMC8014611 DOI: 10.3389/fphar.2021.633603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/26/2021] [Indexed: 12/23/2022] Open
Affiliation(s)
| | - Fabricio Figueiró
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Pedro Henrique Doleski
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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7
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Azambuja JH, Gelsleichter NE, Beckenkamp LR, Iser IC, Fernandes MC, Figueiró F, Battastini AMO, Scholl JN, de Oliveira FH, Spanevello RM, Sévigny J, Wink MR, Stefani MA, Teixeira HF, Braganhol E. CD73 Downregulation Decreases In Vitro and In Vivo Glioblastoma Growth. Mol Neurobiol 2018; 56:3260-3279. [DOI: 10.1007/s12035-018-1240-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/11/2018] [Indexed: 01/29/2023]
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Odorcyk F, Nicola F, Duran‐Carabali L, Figueiró F, Kolling J, Vizuete A, Konrath E, Gonçalves C, Wyse A, Netto C. Galantamine administration reduces reactive astrogliosis and upregulates the anti‐oxidant enzyme catalase in rats submitted to neonatal hypoxia ischemia. Int J Dev Neurosci 2017; 62:15-24. [DOI: 10.1016/j.ijdevneu.2017.07.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/04/2017] [Accepted: 07/27/2017] [Indexed: 01/08/2023] Open
Affiliation(s)
- F.K. Odorcyk
- Post‐graduation Program of NeurosciencesInstituto de Ciências Básicas da SaúdeUniversidade Federal do Rio Grande do SulBrazil
| | - F. Nicola
- Post‐graduation Program of NeurosciencesInstituto de Ciências Básicas da SaúdeUniversidade Federal do Rio Grande do SulBrazil
| | - L.E. Duran‐Carabali
- Post‐graduation Program of Physiology, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulBrazil
| | - F. Figueiró
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - J. Kolling
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - A. Vizuete
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - E.L. Konrath
- Department of Pharmaceutical SciencesUniversidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - C.A. Gonçalves
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - A.T.S. Wyse
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
| | - C.A. Netto
- Department of BiochemistryInstituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil
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Figueiró F, Muller L, Funk S, Jackson EK, Battastini AMO, Whiteside TL. Phenotypic and functional characteristics of CD39 high human regulatory B cells (Breg). Oncoimmunology 2016; 5:e1082703. [PMID: 27057473 DOI: 10.1080/2162402x.2015.1082703] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [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: 06/10/2015] [Revised: 08/05/2015] [Accepted: 08/08/2015] [Indexed: 12/31/2022] Open
Abstract
CD39 and CD73 are key enzymes in the adenosine (ADO) pathway. ADO modulates pathophysiological responses of immune cells, including B cells. It has recently emerged that a subpopulation of ADO-producing CD39+CD73+ B cells has regulatory properties. Here, we define the CD39high subset of these cells as the major contributor to the regulatory network operated by human B lymphocytes. Peripheral blood B cells were sorted into CD39neg, CD39inter and CD39high subsets. The phenotype, proliferation and IL-10 secretion by these B cells were studied by flow cytometry. 5'-AMP and ADO levels were measured by mass spectrometry. Agonists or antagonists of A1R, A2AR and A3R were used to study ADO-receptor signaling in B cells. Inhibition of effector T-cell (Teff) activation/proliferation by B cells was assessed in co-cultures. Cytokine production was measured by Luminex. Upon in vitro activation and culture of B cells, the subset of CD39high B cells increased in frequency (p < 0.001). CD39high B cells upregulated CD73 expression, proliferated (approximately 40% of CD39high B cells were Ki-67+ and secreted fold-2 higher IL-10 and ADO levels than CD39neg or CD39inter B cells. CD39high B cells co-cultured with autologous Teff suppressed T-cell activation/proliferation and secreted elevated levels of IL-6 and IL-10. The A1R and A2AR agonists promoted expansion and functions of CD39high B cells. CD39 ectonucleotidase is upregulated in a subset of in vitro-activated B cells which utilize ADO and IL-10 to suppress Teff functions. Proliferation and functions of these CD39high B cells are regulated by A1R- and A2AR-mediated autocrine signaling.
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Affiliation(s)
- F Figueiró
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre, RS, Brazil
| | - L Muller
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute , Pittsburgh, PA, USA
| | - S Funk
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute , Pittsburgh, PA, USA
| | - E K Jackson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine , Pittsburgh, PA, USA
| | - A M O Battastini
- Programa de Pós-Graduação em Ciências Biológicas, Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - T L Whiteside
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute , Pittsburgh, PA, USA
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Vianna DR, Ruschel L, Dietrich F, Figueiró F, Morrone FB, Canto RFS, Corvello F, Velho A, Crestani A, Teixeira H, von Poser GL, Battastini AMO, Eifler-Lima VL. 4-Methylcoumarins with cytotoxic activity against T24 and RT4 human bladder cancer cell lines. Med Chem Commun 2015. [DOI: 10.1039/c5md00039d] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
4-Methylcoumarins were synthesized by microwave-assisted synthesis via Pechmann condensation and their cytotoxic activity against human bladder cancer cell lines was investigated.
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