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Almeida OGG, Pereira MG, Bighetti-Trevisan RL, Santos ES, De Campos EG, Felis GE, Guimarães LHS, Polizeli MLTM, De Martinis BS, De Martinis ECP. Investigating luxS gene expression in lactobacilli along lab-scale cocoa fermentations. Food Microbiol 2024; 119:104429. [PMID: 38225038 DOI: 10.1016/j.fm.2023.104429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 01/17/2024]
Abstract
Previous metagenomic analyses have suggested that lactobacilli present potential for Quorum Sensing (QS) in cocoa fermentation, and in the present research, laboratory scale fermentations were carried out to monitor the expression of luxS, a universal marker of QS. For that, 96 h-fermentations were studied, as follows: F0 (non inoculated control), F1 (inoculated with yeasts, lactic acid bacteria, and acetic acid bacteria), F2 (inoculated with yeasts and acetic acid bacteria), F3 (inoculated with yeasts only). The parameters evaluated were: plate counting, quantification of key enzymes and analysis of volatile organic compounds associated with key sensory descriptors, using headspace gas chromatography-mass spectrometry (GC-MS). Furthermore, QS was estimated by the quantification of the expression of luxS genes by Reverse Transcriptase Real-Time PCR. The results demonstrated that microbial succession occurred in pilot scale fermentations, but no statistical differences for microbial enumeration and α-diversity index were observed among experiments and control. Moreover, it was not possible to make conclusive correlations of enzymatic profile and fermenting microbiota, likely due to the intrinsic activity of plant hydrolases. Regarding to the expression of luxS genes, in Lactiplantibacillus plantarum they were active along the fermentation, but for Limosilactobacillus fermentum, luxS was expressed only at early and middle phases. Correlation analysis of luxS expression and production of volatile metabolites evidenced a possible negative association of Lp. Plantarum with fermentation quality. In conclusion, these data corroborate former shotgun metagenomic analysis by demonstrating the expression of luxS by lactobacilli in pilot scale cocoa fermentation and evidence Lp. Plantarum is the main lactic acid bacteria related to its expression.
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Affiliation(s)
- O G G Almeida
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Brazil
| | - M G Pereira
- Universidade Do Estado de Minas Gerais, Unidade Passos, Brazil
| | - R L Bighetti-Trevisan
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Biologia Básica e Oral, Brazil
| | - E S Santos
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Brazil
| | - E G De Campos
- Appalachian State University, Department of Chemistry and Fermentation Sciences, Boone, NC, United States; Universidade de São Paulo, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Química, Brazil
| | - G E Felis
- University of Verona, Department of Biotechnology, Verona, Italy
| | - L H S Guimarães
- Universidade de São Paulo, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Brazil
| | - M L T M Polizeli
- Universidade de São Paulo, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Brazil
| | - B S De Martinis
- Universidade de São Paulo, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Química, Brazil
| | - E C P De Martinis
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Brazil.
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de Castro LR, de Oliveira LD, Milan TM, Eskenazi APE, Bighetti-Trevisan RL, de Almeida OGG, Amorim MLM, Squarize CH, Castilho RM, de Almeida LO. Up-regulation of TNF-alpha/NFkB/SIRT1 axis drives aggressiveness and cancer stem cells accumulation in chemoresistant oral squamous cell carcinoma. J Cell Physiol 2024; 239:e31164. [PMID: 38149816 DOI: 10.1002/jcp.31164] [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: 08/08/2023] [Revised: 11/03/2023] [Accepted: 11/17/2023] [Indexed: 12/28/2023]
Abstract
Tumor resistance remains an obstacle to successfully treating oral squamous cell carcinoma (OSCC). Cisplatin is widely used as a cytotoxic drug to treat solid tumors, including advanced OSCC, but with low efficacy due to chemoresistance. Therefore, identifying the pathways that contribute to chemoresistance may show new possibilities for improving the treatment. This work explored the role of the tumor necrosis factor-alpha (TNF-alpha)/NFkB signaling in driving the cisplatin resistance of OSCC and its potential as a pharmacological target to overcome chemoresistance. Differential accessibility analysis demonstrated the enrichment of opened chromatin regions in members of the TNF-alpha/NFkB signaling pathway, and RNA-Seq confirmed the upregulation of TNF-alpha/NFkB signaling in cisplatin-resistant cell lines. NFkB was accumulated in cisplatin-resistant cell lines and in cancer stem cells (CSC), and the administration of TNF-alpha increased the CSC, suggesting that TNF-alpha/NFkB signaling is involved in the accumulation of CSC. TNF-alpha stimulation also increased the histone deacetylases HDAC1 and SIRT1. Cisplatin-resistant cell lines were sensitive to the pharmacological inhibition of NFkB, and low doses of the NFkB inhibitors, CBL0137, and emetine, efficiently reduced the CSC and the levels of SIRT1, increasing histone acetylation. The NFkB inhibitors decreased stemness potential, clonogenicity, migration, and invasion of cisplatin-resistant cell lines. The administration of the emetine significantly reduced the tumor growth of cisplatin-resistant xenograft models, decreasing NFkB and SIRT1, increasing histone acetylation, and decreasing CSC. TNF-alpha/NFkB/SIRT1 signaling regulates the epigenetic machinery by modulating histone acetylation, CSC, and aggressiveness of cisplatin-resistant OSCC and the NFkB inhibition is a potential strategy to treat chemoresistant OSCC.
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Affiliation(s)
- Letícia Rodrigues de Castro
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Lucas Dias de Oliveira
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thaís Moré Milan
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
- Department of Clinical Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Toxicology and Food Science, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ana Patrícia Espaladori Eskenazi
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rayana Longo Bighetti-Trevisan
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Otávio Guilherme Gonçalves de Almeida
- Department of Clinical Analysis, School of Pharmaceutical Sciences of Ribeirão Preto, Toxicology and Food Science, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcio Luis Munhoz Amorim
- Department of Electrical Engineering, School of Engineering of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Cristiane Helena Squarize
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Rogerio Moraes Castilho
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Luciana Oliveira de Almeida
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Bighetti-Trevisan RL, Ferraz EP, Silva MBF, Zatta GC, de Almeida MB, Rosa AL, Beloti MM. Effect of osteoblasts on osteoclast differentiation and activity induced by titanium with nanotopography. Colloids Surf B Biointerfaces 2023; 229:113448. [PMID: 37451224 DOI: 10.1016/j.colsurfb.2023.113448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/03/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
Titanium with nanotopography (Ti Nano) favors osteoblast differentiation and attenuates the osteoclast inhibitory effects on osteoblasts. Because the interactions between nanotopography and osteoclasts are underexplored, the aims of this study were to evaluate the effects of Ti Nano on osteoclast differentiation and activity, and the influence of osteoblasts on osteoclast-Ti Nano interaction. The discs were conditioned with a mixture of 10 N H2SO4 and 30% aqueous H2O2 to create Ti Nano and non-conditioned Ti discs were used as control (Ti Control). Osteoclasts were cultured on Ti Control and Ti Nano in the presence of osteoblasts in an indirect co-culture system. Also, osteoclasts were cultured on polystyrene and calcium phosphate plates in conditioned media by osteoblasts grown on Ti Control and Ti Nano. While Ti Control exhibited an irregular and smooth surface, Ti Nano presented nanopores distributed throughout the whole surface. Additionally, anisotropy was higher on Ti Nano than Ti Control. Nanotopography favored the gene expression of osteoclast markers but inhibited osteoclast differentiation and activity, and the presence of osteoblasts enhanced the effects of Ti Nano on osteoclasts. Such findings were mimicked by conditioned medium of osteoblasts cultured on Ti Nano, which reduced the osteoclast differentiation and activity. In conclusion, our results indicated that nanotopography regulates osteoblast-osteoclast crosstalk and further investigations should focus the impact of these bone cell interactions on Ti osseointegration.
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Affiliation(s)
| | - Emanuela Prado Ferraz
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | | | - Guilherme Crepi Zatta
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Marcelo Barros de Almeida
- School of Electrical Engineering, Federal University of Uberlândia, Uberlândia, 38408-100 MG, Brazil
| | - Adalberto Luiz Rosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Marcio Mateus Beloti
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil.
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Paz JERM, Adolpho LF, Ramos JIR, Bighetti-Trevisan RL, Calixto RD, Oliveira FS, Almeida ALG, Beloti MM, Rosa AL. Effect of Mesenchymal Stem Cells Overexpressing BMP-9 Primed with Hypoxia on BMP Targets, Osteoblast Differentiation and Bone Repair. Biology (Basel) 2023; 12:1147. [PMID: 37627031 PMCID: PMC10452403 DOI: 10.3390/biology12081147] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
Bone formation is driven by many signaling molecules including bone morphogenetic protein 9 (BMP-9) and hypoxia-inducible factor 1-alpha (HIF-1α). We demonstrated that cell therapy using mesenchymal stem cells (MSCs) overexpressing BMP-9 (MSCs+BMP-9) enhances bone formation in calvarial defects. Here, the effect of hypoxia on BMP components and targets of MSCs+BMP-9 and of these hypoxia-primed cells on osteoblast differentiation and bone repair was evaluated. Hypoxia was induced with cobalt chloride (CoCl2) in MSCs+BMP-9, and the expression of BMP components and targets was evaluated. The paracrine effects of hypoxia-primed MSCs+BMP-9 on cell viability and migration and osteoblast differentiation were evaluated using conditioned medium. The bone formation induced by hypoxia-primed MSCs+BMP-9 directly injected into rat calvarial defects was also evaluated. The results demonstrated that hypoxia regulated BMP components and targets without affecting BMP-9 amount and that the conditioned medium generated under hypoxia favored cell migration and osteoblast differentiation. Hypoxia-primed MSCs+BMP-9 did not increase bone repair compared with control MSCs+BMP-9. Thus, despite the lack of effect of hypoxia on bone formation, the enhancement of cell migration and osteoblast differentiation opens windows for further investigations on approaches to modulate the BMP-9-HIF-1α circuit in the context of cell-based therapies to induce bone regeneration.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Adalberto Luiz Rosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, Ribeirão Preto 14040-904, SP, Brazil; (J.E.R.M.P.); (L.F.A.); (J.I.R.R.); (R.L.B.-T.); (R.D.C.); (F.S.O.); (A.L.G.A.); (M.M.B.)
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Milan TM, Eskenazi APE, de Oliveira LD, da Silva G, Bighetti-Trevisan RL, Freitas GP, de Almeida LO. Interplay between EZH2/β-catenin in stemness of cisplatin-resistant HNSCC and their role as therapeutic targets. Cell Signal 2023:110773. [PMID: 37331417 DOI: 10.1016/j.cellsig.2023.110773] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/02/2023] [Accepted: 06/14/2023] [Indexed: 06/20/2023]
Abstract
The Wnt/β-catenin signaling pathway is associated with the regulation of cancer stem cells, and it can be driven by epigenetic modifications. Here, we aim to identify epigenetic modifications involved in the control of the Wnt/β-catenin signaling and investigate the role of this pathway in the accumulation of cancer stem cells (CSC) and chemoresistance of Head and Neck Squamous Cell Carcinoma (HNSCC). Quantitative-PCR, western blot, shRNA assay, viability assay, flow cytometry assay, spheres formation, xenograft model, and chromatin immunoprecipitation were employed to evaluate the Wnt/β-catenin pathway and EZH2 in wild-type and chemoresistant oral carcinoma cell lines, and in the populations of CSC and non-stem cells. We demonstrated that β-catenin and EZH2 were accumulated in cisplatin-resistant and CSC population. The upstream genes of the Wnt/β-catenin signaling (APC and GSK3β) were decreased, and the downstream gene MMP7 was increased in the chemoresistant cell lines. The inhibition of β-catenin and EZH2 combined effectively decreased the CSC population in vitro and reduced the tumor volume and CSC population in vivo. EZH2 inhibition increased APC and GSK3β, and the Wnt/β-catenin inhibition reduced MMP7 levels. In contrast, EZH2 overexpression decreased APC and GSK3β and increased MMP7. EZH2 and β-catenin inhibitors sensitized chemoresistant cells to cisplatin. EZH2 and H3K27me3 bounded the promoter of APC, leading to its repression. These results suggest that EZH2 regulates β-catenin by inhibiting the upstream gene APC contributing to the accumulation of cancer stem cells and chemoresistance. Moreover, the pharmacological inhibition of the Wnt/β-catenin combined with EZH2 can be an effective strategy for treating HNSCC.
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Affiliation(s)
- Thaís Moré Milan
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil; Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Ana Patrícia Espaladori Eskenazi
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Lucas Dias de Oliveira
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gabriel da Silva
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Rayana Longo Bighetti-Trevisan
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Gileade Pereira Freitas
- Departament of Oral and Maxillofacial Surgery, School of Dentistry, Federal University of Goiás, Goiás, Brazil.
| | - Luciana Oliveira de Almeida
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Campos Totoli GG, Bighetti-Trevisan RL, Freitas GP, Adolpho LF, Golçalves Almeida AL, Loyola Barbosa AC, Reis Ramos JI, Beloti MM, Rosa AL. Association of mesenchymal stem cells derived from bone marrow and adipose tissue enhances bone repair in rat calvarial defects. Regen Med 2023; 18:377-387. [PMID: 37125511 DOI: 10.2217/rme-2022-0219] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
Aim: We evaluated the bone repair induced by MSCs from adipose tissue (AT-MSCs) and bone marrow (BM-MSCs) injected into rat calvarial defects at two time points. Methods & results: Both cell populations expressed MSC surface markers and differentiated into adipocytes and osteoblasts. μCT showed that the combination of cells from distinct sources exhibited synergistic effects to increase bone repair with an advantage when BM-MSCs were injected prior to AT-MSCs. The higher osteogenic potential of these MSC combinations was demonstrated using an in vitro coculture system where BM-MSCs and AT-MSCs association induced higher ALP activity in MC3T3-E1 cells. Conclusion: Our findings may drive new approaches to treat bone defects and shed light on the complexity of the mechanisms involved in bone regeneration.
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Affiliation(s)
| | - Rayana Longo Bighetti-Trevisan
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
| | | | - Leticia Faustino Adolpho
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
| | | | - Ana Carolina Loyola Barbosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
| | - Jaqueline Isadora Reis Ramos
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
| | - Marcio Mateus Beloti
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
| | - Adalberto Luiz Rosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-904, Brazil
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Monteiro JM, Reis Ramos JI, Teixeira e Sousa I, Bighetti-Trevisan RL, Ribas Filho JM, Isolan GR. Identification of CD114 Membrane Receptors as a Molecular Target in Medulloblastomas. Int J Mol Sci 2023; 24:ijms24065331. [PMID: 36982406 PMCID: PMC10048885 DOI: 10.3390/ijms24065331] [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] [Received: 01/30/2023] [Revised: 03/04/2023] [Accepted: 03/05/2023] [Indexed: 03/15/2023] Open
Abstract
Medulloblastomas are the most common solid tumors in children, accounting for 8–30% of pediatric brain cancers. It is a high-grade tumor with aggressive behavior and a typically b poor prognosis. Its treatment includes surgery, chemotherapy, and radiotherapy, and presents high morbidity. Significant clinical, genetic, and prognostic differences exist between its four molecular subgroups: WNT, SHH, Group 3, and Group 4. Many studies seek to develop new chemotherapeutic agents for medulloblastomas through the identification of genes whose expressions are new molecular targets for drugs, such as membrane receptors associated with cell replication. This study aimed to assess the association of CD114 expression with mortality in patients with medulloblastoma. Databases from the Medulloblastoma Advanced Genomics International Consortium (MAGIC) were analyzed, focusing on the expression of the CD114 membrane receptor in different molecular types and its possible association with mortality. Our findings showed different CD114 expressions between Group 3 and other molecular groups, as well as between the molecular subtypes SHH γ and Group 3 α and Group 3 β. There was no statistically significant difference between the other groups and subtypes. Regarding mortality, this study did not find statistical significance in the association between low and high CD114 expressions and mortality. Medulloblastoma is a heterogeneous disease with many subtype variations of its genetic and intracellular signaling pathways. Similarly to this study, which could not demonstrate different CD114 membrane receptor expression patterns between groups, others who sought to associate CD114 expression with mortality in other types of cancer failed to establish a direct association. Since many indications point to the relation of this gene with cancer stem cells (CSCs), it may be part of a more extensive cellular signaling pathway with an eventual association with tumor recurrence. This study found no direct relationship between CD114 expression and mortality in patients with medulloblastoma. Further studies are needed on the intracellular signaling pathways associated with this receptor and its gene (the CSF3R).
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Affiliation(s)
- Jander Moreira Monteiro
- Department of Neurosurgery, Center for Advanced Neurology and Neurosurgery (CEANNE), Porto Alegre 90560-010, Brazil
- Postgraduate Program, Mackenzie Evangelical College of Parana, Curitiba 81531-980, Brazil
| | | | - Ian Teixeira e Sousa
- Pediatric Intensive Care Unit, Conceição Children’s Hospital, Porto Alegre 90560-010, Brazil
| | | | | | - Gustavo Rassier Isolan
- Department of Neurosurgery, Center for Advanced Neurology and Neurosurgery (CEANNE), Porto Alegre 90560-010, Brazil
- Postgraduate Program, Mackenzie Evangelical College of Parana, Curitiba 81531-980, Brazil
- Correspondence:
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Martorano AS, Messias NS, Bighetti-Trevisan RL, de Oliveira PT, de Castro Raucci LMS, Raucci Neto W. In vitro inflammatory modulation of bioceramic endodontic sealer in macrophages stimulated by bacterial lipopolysaccharide. Int Endod J 2023; 56:213-226. [PMID: 36314853 DOI: 10.1111/iej.13858] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 11/05/2022]
Abstract
AIM To evaluate the effects of AH Plus (Dentsply), Sealer 26 (Dentsply), and Sealer Plus BC (Produtos Médicos e Odontológicos) on cytotoxicity and inflammation in macrophage cultures exposed to bacterial lipopolysaccharide (LPS). METHODOLOGY After initial setting, the sealers were conditioned with serum-free culture medium for 24 h (1 ml/cm2 ). Macrophages from the RAW 264.7 strain were exposed to sealer extracts in a 1:16 ratio in a culture medium with or without LPS. Cell morphology, viability, mitochondrial activity, oxidative stress and gene expression of interleukin 1β (IL-1β) and tumour necrosis factor-alpha (TNF-α) were evaluated. Data on mitochondrial activity, oxidative stress and TNF-α were analysed using a two-way analysis of variance (anova) test, followed by the Student-Newman-Keuls post-test. IL-1β data were analysed using one-way anova, followed by SNK, and the t-test was used for intragroup comparison. The significance level was set at 5%. RESULTS In the absence of LPS, only AH Plus and Sealer 26 showed a reduction in cell density, while in the presence of LPS, Sealer 26 had the lowest density compared to the other groups. In terms of mitochondrial activity, at 24 and 48 h, Sealer Plus BC had significantly higher mean values than Sealer 26 and AH Plus (p < .05). Sealer 26 exhibited the lowest levels of oxidative stress and IL-1β and TNF-α expression, regardless of the presence of LPS (p < .05). CONCLUSIONS Although all sealers interfere with the response of macrophages to LPS, contact with epoxy resin-based sealers can impair cell activity in vitro, while bioceramic sealer seems to favour the inflammatory functions of these cells.
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Milan TM, Bighetti-Trevisan RL, Garcia CB, Leopoldino AM, De Almeida LO. UNRAVELING PATHWAYS THAT DRIVE CISPLATIN CHEMORESISTANCE IN ORAL CARCINOMA CELL LINES. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bighetti-Trevisan RL, Schuch LF, Wagner VP, De Almeida LO, Silveira FM, Martins MD. IDENTIFICATION OF MOLECULAR ASPECTS OF ODONTOGENIC LESIONS BY BIOINFORMATICS TOOLS - A SYSTEMATIC REVIEW. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Tavares MO, Milan TM, Bighetti-Trevisan RL, Leopoldino AM, de Almeida LO. Pharmacological inhibition of HDAC6 overcomes cisplatin chemoresistance by targeting cancer stem cells in oral squamous cell carcinoma. J Oral Pathol Med 2022; 51:529-537. [PMID: 35678235 DOI: 10.1111/jop.13326] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/01/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Chemoresistance is associated with recurrence and metastasis in oral squamous cell carcinoma (OSCC). The cancer stem cell (CSC) subpopulation is highly resistant to therapy, and they are regulated by epigenetic mechanisms. HDACs are histone deacetylase enzymes that epigenetically regulate gene expression. HDAC6 acts on several physiological processes, including oxidative stress, autophagy and DNA damage response, and its accumulation is associated with cancer. Here, we investigate the role of HDAC6 in CSC-mediated chemoresistance in oral carcinoma in addition to its application as a therapeutic target to reverse chemoresistance. METHODS Wild-type oral carcinoma cell lines (CAL27 WT and SCC9 WT), cisplatin-resistant (CAL27 CisR and SCC9 CisR), and the subpopulations of cancer stem cells (CSC+) and non-stem (CSC-) derived from CisR cells were investigated. HDAC6 accumulation was analyzed by Western blot and immunofluorescence; DNA damage was evaluated by immunofluorescence of phospho-H2A.X; the qPCR for PRDX2, PRDX6, SOD2, and TXN and ROS assay assessed oxidative stress. Apoptosis and CSC accumulation were investigated by flow cytometry. RESULTS We identified the accumulation of HDAC6 in CisR cell lines and CSC. Cisplatin-resistant cell lines and CSC demonstrated a reduction in DNA damage and ROS and elevated expression of PRDX2. The administration of tubastatin A (a specific HDAC6 inhibitor) increased oxidative stress and DNA damage and decreased PRDX2. Tubastatin A as a monotherapy induced apoptosis in CisR and CSC and reduced the stemness phenotype. CONCLUSION High levels of HDAC6 sustain CSC subpopulation and chemoresistance in OSCC, suggesting HDAC6 as a pharmacological target to overcome resistance and perhaps prevent recurrence in OSCC.
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Affiliation(s)
- Marcela Oliveira Tavares
- Department of Basic and Oral Biology, School of Dentistry, University of São Paulo, Ribeirão Preto, Brazil
| | - Thaís Moré Milan
- Department of Basic and Oral Biology, School of Dentistry, University of São Paulo, Ribeirão Preto, Brazil.,School of Pharmaceutical Sciences of Ribeirão Preto, Graduate Program in Biosciences and Biotechnology, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Andréia Machado Leopoldino
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciana Oliveira de Almeida
- Department of Basic and Oral Biology, School of Dentistry, University of São Paulo, Ribeirão Preto, Brazil.,School of Pharmaceutical Sciences of Ribeirão Preto, Graduate Program in Biosciences and Biotechnology, University of São Paulo, Ribeirão Preto, Brazil
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Milan TM, Eskenazi APE, Bighetti-Trevisan RL, de Almeida LO. Epigenetic modifications control loss of adhesion and aggressiveness of cancer stem cells derived from head and neck squamous cell carcinoma with intrinsic resistance to cisplatin. Arch Oral Biol 2022; 141:105468. [DOI: 10.1016/j.archoralbio.2022.105468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/17/2022] [Accepted: 05/29/2022] [Indexed: 11/17/2022]
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Bighetti-Trevisan RL, Souza ATP, Tosin IW, Bueno NP, Crovace MC, Beloti MM, Rosa AL, Ferraz EP. Bioactive glass-ceramic for bone tissue engineering: an in vitro and in vivo study focusing on osteoclasts. Braz Oral Res 2022; 36:e022. [PMID: 35293496 DOI: 10.1590/1807-3107bor-2022.vol36.0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 06/02/2021] [Indexed: 11/22/2022] Open
Abstract
Despite the crucial role of osteoclasts in the physiological process of bone repair, most bone tissue engineering strategies have focused on osteoblast-biomaterial interactions. Although Biosilicate® with two crystalline phases (BioS-2P) exhibits osteogenic properties and significant bone formation, its effects on osteoclasts are unknown. This study aimed to investigate the in vitro and in vivo effects of BioS-2P on osteoclast differentiation and activity. RAW 264.7 cells were cultured in osteoclastogenic medium (OCM) or OCM conditioned with BioS-2P (OCM-BioS-2P), and the cell morphology, viability, and osteoclast differentiation were evaluated. BioS-2P scaffolds were implanted into rat calvarial defects, and the bone tissue was evaluated using tartrate-resistant acid phosphatase (TRAP) staining and RT-polymerase chain reaction (PCR) after 2 and 4 weeks to determine the gene expressions of osteoclast markers and compare them with those of the bone grown in empty defects (Control). OCM-BioS-2P favored osteoclast viability and activity, as evidenced by an increase in the TRAP-positive cells and matrix resorption. The bone tissue grown on BioS-2P scaffolds exhibited higher expression of the osteoclast marker genes (Ctsk, Mmp 9, Rank) after 2 and 4 weeks and the RankL/Opg ratio after 2 weeks. Trap gene expression was lower at 2 weeks, and a higher number of TRAP-stained areas were observed in the newly formed bone on BioS-2P scaffolds at both 2 and 4 weeks compared to the Controls. These results enhanced our understanding of the role of bioactive glass-ceramics in bone repair, and highlighted their role in the modulation of osteoclastic activities and promotion of interactions between bone tissues and biomaterials.
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Affiliation(s)
| | | | - Ingrid Wezel Tosin
- Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Bone Research Lab, Ribeirão Preto, SP, Brazil
| | - Natália Pieretti Bueno
- Universidade de São Paulo - USP, School of Dentistry, Department of Oral and Maxillofacial Surgery, Prosthesis and Traumatology, São Paulo, SP, Brazil
| | - Murilo Camuri Crovace
- Universidade Federal de São Carlos - UFScar, Vitreous Materials Laboratory, São Carlos, SP, Brazil
| | - Marcio Mateus Beloti
- Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Bone Research Lab, Ribeirão Preto, SP, Brazil
| | - Adalberto Luiz Rosa
- Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Bone Research Lab, Ribeirão Preto, SP, Brazil
| | - Emanuela Prado Ferraz
- Universidade de São Paulo - USP, School of Dentistry, Department of Oral and Maxillofacial Surgery, Prosthesis and Traumatology, São Paulo, SP, Brazil
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Rocha AL, Bighetti-Trevisan RL, Duffles LF, de Arruda JAA, Taira TM, Assis BRD, Macari S, Diniz IMA, Beloti MM, Rosa AL, Fukada SY, Goulart GAC, Ribeiro DD, Abreu LG, Silva TA. Inhibitory effects of dabigatran etexilate, a direct thrombin inhibitor, on osteoclasts and osteoblasts. Thromb Res 2019; 186:45-53. [PMID: 31883999 DOI: 10.1016/j.thromres.2019.12.014] [Citation(s) in RCA: 5] [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: 10/23/2019] [Accepted: 12/19/2019] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Anticoagulants are widely used in orthopedic surgery to decrease the risk of deep vein thrombosis. While significant bone impairment is induced by long-term heparin therapy, little is known about the effects of direct oral anticoagulants (DOACs). Herein, we investigated the effects of dabigatran etexilate (Pradaxa®), a DOAC inhibitor of thrombin, on bone cells using in vitro and ex vivo cell culture models. MATERIALS AND METHODS Osteoblasts and osteoclasts exposed to different concentrations of dabigatran etexilate and untreated cells were assayed for cell differentiation and activity. Favorable osteogenic conditions for osteoblasts were tested using titanium with nanotopography (Ti-Nano). In addition, mice treated with a dabigatran etexilate solution had bone marrow cells analyzed for the ability to generate osteoclasts. RESULTS Dabigatran etexilate at concentrations of 1 μg/mL and 2 μg/mL did not impact osteoclast or osteoblast viability. The drug inhibited osteoclast differentiation and activity as observed by the reduction of TRAP+ cells, resorption pits and gene and protein expression of cathepsin K. Consistently, osteoclasts from mice treated with dabigatran showed decreased area, resorptive activity, as well as gene and protein expression of cathepsin K. In osteoblast cultures, grown both on polystyrene and Ti-Nano, dabigatran etexilate reduced alkaline phosphatase (ALP) activity, matrix mineralization, gene expression of ALP and osteocalcin. CONCLUSIONS Dabigatran etexilate inhibited osteoclast differentiation in ex vivo and in vitro models in a dose-dependent manner. Moreover, the drug reduced osteoblast activity even under optimal osteogenic conditions. This study provides new evidence regarding the negative overall impact of DOACs on bone cells.
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Affiliation(s)
- Amanda Leal Rocha
- Department of Oral Surgery and Pathology, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | | | - Letícia Fernanda Duffles
- Department of Physics and Chemistry, Faculty of Pharmacological Science, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - José Alcides Almeida de Arruda
- Department of Oral Surgery and Pathology, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Thaise Mayumi Taira
- Department of Physics and Chemistry, Faculty of Pharmacological Science, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Bruna Rodrigues Dias Assis
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Soraia Macari
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Ivana Márcia Alves Diniz
- Department of Restorative Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Marcio Mateus Beloti
- Bone Research Laboratory, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Adalberto Luiz Rosa
- Bone Research Laboratory, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Sandra Yasuyo Fukada
- Department of Physics and Chemistry, Faculty of Pharmacological Science, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Gisele Assis Castro Goulart
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Daniel Dias Ribeiro
- Department of Hematology, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Lucas Guimarães Abreu
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Tarcília Aparecida Silva
- Department of Oral Surgery and Pathology, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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