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Leal IDC, Rabelo CS, de Melo MAS, Silva PGDB, Costa FWG, Passos VF. Polyphenols for Preventing Dental Erosion in Pre-clinical Studies with in situ Designs and Simulated Acid Attack. PLANTA MEDICA 2023; 89:1034-1044. [PMID: 37230482 DOI: 10.1055/a-2100-3542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Dental erosion is a chemical process characterized by acid dissolution of dental hard tissue, and its etiology is multifactorial. Dietary polyphenols can be a strategy for dental erosion management, collaborating to preserve dental tissues through resistance to biodegradation. This study describes a comprehensive review to interpret the effects of polyphenols on dental erosion of pre-clinical models with in situ designs and simulated acid attacks on enamel and dentin samples. We aim to evaluate evidence about Polyphenols' effects in the type of dental substrate, parameters of erosive cycling chosen in the in situ models, and the possible mechanisms involved. An evidence-based literature review was conducted using appropriate search strategies developed for main electronic databases (PubMed, Scopus, Web of Science, LILACS, EMBASE, LIVIVO, CINAHL, and DOSS) and gray literature (Google Scholar). The Joanna Briggs Institute checklist was used to evaluate the quality of the evidence. From a total of 1900 articles, 8 were selected for evidence synthesis, including 224 specimens treated with polyphenols and 224 control samples. Considering the studies included in this review, we could observe that polyphenols tend to promote a reduction in erosive and abrasive wear compared to control groups. However, as the few studies included have a high risk of bias with different methodologies and the estimated effect size is low, this conclusion should not be extrapolated to clinical reality.
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Affiliation(s)
- Isabelly de Carvalho Leal
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Cibele Sales Rabelo
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Mary Anne Sampaio de Melo
- Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, Maryland, United States
| | | | - Fábio Wildson Gurgel Costa
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Vanara Florêncio Passos
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
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Fernandes CJDC, Cassiano AFB, Henrique-Silva F, Cirelli JA, de Souza EP, Coaguila-Llerena H, Zambuzzi WF, Faria G. Recombinant sugarcane cystatin CaneCPI-5 promotes osteogenic differentiation. Tissue Cell 2023; 83:102157. [PMID: 37451011 DOI: 10.1016/j.tice.2023.102157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
Cysteine proteases orchestrate bone remodeling, and are inhibited by cystatins. In reinforcing our hypothesis that exogenous and naturally obtained inhibitors of cysteine proteases (cystatins) act on bone remodeling, we decided to challenge osteoblasts with sugarcane-derived cystatin (CaneCPI-5) for up to 7 days. To this end, we investigated molecular issues related to the decisive, preliminary stages of osteoblast biology, such as adhesion, migration, proliferation, and differentiation. Our data showed that CaneCPI-5 negatively modulates both cofilin phosphorylation at Ser03, and the increase in cytoskeleton remodeling during the adhesion mechanism, possibly as a prerequisite to controlling cell proliferation and migration. This is mainly because CaneCPI-5 also caused the overexpression of the CDK2 gene, and greater migration of osteoblasts. Extracellular matrix remodeling was also evaluated in this study by investigating matrix metalloproteinase (MMP) activities. Our data showed that CaneCPI-5 overstimulates both MMP-2 and MMP-9 activities, and suggested that this cellular event could be related to osteoblast differentiation. Additionally, differentiation mechanisms were better evaluated by investigating Osterix and alkaline phosphatase (ALP) genes, and bone morphogenetic protein (BMP) signaling members. Altogether, our data showed that CaneCPI-5 can trigger biological mechanisms related to osteoblast differentiation, and broaden the perspectives for better exploring biotechnological approaches for bone disorders.
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Affiliation(s)
- Célio Junior da Costa Fernandes
- Bioassays and Cell Dynamics Lab, Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, São Paulo, Brazil; Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, São Paulo, Brazil; Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, São Paulo, Brazil
| | - Ana Flávia Balestrero Cassiano
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil
| | - Flavio Henrique-Silva
- Department of Genetics and Evolution, Federal University of Sao Carlos, São Carlos, São Paulo, Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University -UNESP, Araraquara, São Paulo, Brazil
| | - Eduardo Pereira de Souza
- Department of Genetics and Evolution, Federal University of Sao Carlos, São Carlos, São Paulo, Brazil
| | - Hernán Coaguila-Llerena
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil
| | - Willian Fernando Zambuzzi
- Bioassays and Cell Dynamics Lab, Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, São Paulo, Brazil.
| | - Gisele Faria
- Department of Restorative Dentistry, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, São Paulo, Brazil.
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de Souza EP, Ferro M, Pelá VT, Fernanda-Carlos T, Borges CGG, Taira EA, Ventura TMO, Arencibia AD, Buzalaf MAR, Henrique-Silva F. Maquiberry Cystatins: Recombinant Expression, Characterization, and Use to Protect Tooth Dentin and Enamel. Biomedicines 2023; 11:biomedicines11051360. [PMID: 37239031 DOI: 10.3390/biomedicines11051360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Phytocystatins are proteinaceous competitive inhibitors of cysteine peptidases involved in physiological and defensive roles in plants. Their application as potential therapeutics for human disorders has been suggested, and the hunt for novel cystatin variants in different plants, such as maqui (Aristotelia chilensis), is pertinent. Being an understudied species, the biotechnological potential of maqui proteins is little understood. In the present study, we constructed a transcriptome of maqui plantlets using next-generation sequencing, in which we found six cystatin sequences. Five of them were cloned and recombinantly expressed. Inhibition assays were performed against papain and human cathepsins B and L. Maquicystatins can inhibit the proteases in nanomolar order, except MaquiCPIs 4 and 5, which inhibit cathepsin B in micromolar order. This suggests maquicystatins' potential use for treating human diseases. In addition, since we previously demonstrated the efficacy of a sugarcane-derived cystatin to protect dental enamel, we tested the ability of MaquiCPI-3 to protect both dentin and enamel. Both were protected by this protein (by One-way ANOVA and Tukey's Multiple Comparisons Test, p < 0.05), suggesting its potential usage in dental products.
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Affiliation(s)
- Eduardo Pereira de Souza
- Department of Genetics and Evolution, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil
| | - Milene Ferro
- Department of General and Applied Biology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro 13506-900, SP, Brazil
| | - Vinicius Taioqui Pelá
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, SP, Brazil
| | - Thais Fernanda-Carlos
- Department of Genetics and Evolution, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil
| | | | - Even Akemi Taira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, SP, Brazil
| | - Talita Mendes Oliveira Ventura
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, SP, Brazil
| | - Ariel Domingo Arencibia
- Center of Biotechnology in Natural Resources, Faculty of Agrarian and Forestry Sciences, Catholic University of Maule (UCM), Talca 3466706, Chile
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, SP, Brazil
| | - Flávio Henrique-Silva
- Department of Genetics and Evolution, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil
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Santos Correa KC, Moreira AC, Abd El-Raheem Ibrahim AG, Ramos de Jesus HC, Micocci KC, Crizóstomo Kock FV, Bueno OC, Venâncio T, Henrique-Silva F, Souza DHF. Identification and characterization of a recombinant cysteine peptidase (AsCathL) from leaf-cutting ant Atta sexdens Linnaeus, 1758 (Hymenoptera, Formicidae). Protein Expr Purif 2023; 201:106174. [DOI: 10.1016/j.pep.2022.106174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
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Sandhu KS, Shiv A, Kaur G, Meena MR, Raja AK, Vengavasi K, Mall AK, Kumar S, Singh PK, Singh J, Hemaprabha G, Pathak AD, Krishnappa G, Kumar S. Integrated Approach in Genomic Selection to Accelerate Genetic Gain in Sugarcane. PLANTS 2022; 11:plants11162139. [PMID: 36015442 PMCID: PMC9412483 DOI: 10.3390/plants11162139] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022]
Abstract
Marker-assisted selection (MAS) has been widely used in the last few decades in plant breeding programs for the mapping and introgression of genes for economically important traits, which has enabled the development of a number of superior cultivars in different crops. In sugarcane, which is the most important source for sugar and bioethanol, marker development work was initiated long ago; however, marker-assisted breeding in sugarcane has been lagging, mainly due to its large complex genome, high levels of polyploidy and heterozygosity, varied number of chromosomes, and use of low/medium-density markers. Genomic selection (GS) is a proven technology in animal breeding and has recently been incorporated in plant breeding programs. GS is a potential tool for the rapid selection of superior genotypes and accelerating breeding cycle. However, its full potential could be realized by an integrated approach combining high-throughput phenotyping, genotyping, machine learning, and speed breeding with genomic selection. For better understanding of GS integration, we comprehensively discuss the concept of genetic gain through the breeder’s equation, GS methodology, prediction models, current status of GS in sugarcane, challenges of prediction accuracy, challenges of GS in sugarcane, integrated GS, high-throughput phenotyping (HTP), high-throughput genotyping (HTG), machine learning, and speed breeding followed by its prospective applications in sugarcane improvement.
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Affiliation(s)
- Karansher Singh Sandhu
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99163, USA
| | - Aalok Shiv
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Gurleen Kaur
- Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
| | - Mintu Ram Meena
- Regional Center, ICAR-Sugarcane Breeding Institute, Karnal 132001, India
| | - Arun Kumar Raja
- Division of Crop Production, ICAR-Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Krishnapriya Vengavasi
- Division of Crop Production, ICAR-Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Ashutosh Kumar Mall
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Sanjeev Kumar
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Praveen Kumar Singh
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Jyotsnendra Singh
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Govind Hemaprabha
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 641007, India
| | - Ashwini Dutt Pathak
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
| | - Gopalareddy Krishnappa
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 641007, India
- Correspondence: (G.K.); (S.K.)
| | - Sanjeev Kumar
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow 226002, India
- Correspondence: (G.K.); (S.K.)
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Balbinott N, Margis R. Review: Unraveling the origin of the structural and functional diversity of plant cystatins. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111342. [PMID: 35696902 DOI: 10.1016/j.plantsci.2022.111342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/02/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
The regulation of protease activity is a critical factor for the physiological balance during plant growth and development. Among the proteins involved in controlling protease activity are the cystatins, well-described inhibitors of cysteine proteases present in viruses, bacteria and most Eukaryotes. Plant cystatins, commonly called phytocystatins, display unique structural and functional diversity and are classified according to their molecular weight as type-I, -II, and -III. Their gene structure is highly conserved across Viridiplantae and provides insights into their evolutionary relationships. Many type-I phytocystatins with introns share sequence similarities with type-II phytocystatins. New data shows that they could have originated from recent losses of the carboxy-terminal extension present in type-II phytocystatins. Intronless type-I phytocystatins originated from a single event shared by flowering plants. Pieces of evidence show multiple events of gene duplications, intron losses, and gains throughout the expansion and diversity of the phytocystatin family. Gene duplication events in Gymnosperms and Eudicots resulted in inhibitors with amino acid substitutions that may modify their interaction with target proteases and other proteins. This review brings a phylogenomic analysis of plant cystatin evolution and contributes to a broader understanding of their origins. A complete functional genomic analysis among phytocystatins and their roles in plant development and responses to abiotic and biotic stresses remains a question to be fully solved.
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Affiliation(s)
- Natalia Balbinott
- Laboratório de Genomas e Populações de Plantas, Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, Brazil; Programa de Pós-graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, Brazil
| | - Rogerio Margis
- Laboratório de Genomas e Populações de Plantas, Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, Brazil; Programa de Pós-graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, Brazil; Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, Brazil; Programa INCT Plant Stress Biotech, EMBRAPA, CENARGEN, Brasilia, DF, Brazil.
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Identification and Functional Analysis of a Pseudo-Cysteine Protease from the Midgut Transcriptome of Sphenophorus levis. Int J Mol Sci 2021; 22:ijms222111476. [PMID: 34768909 PMCID: PMC8583781 DOI: 10.3390/ijms222111476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/08/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
The Sphenophorus levis (Coleoptera, Curculionidae) is one of the main pests of sugarcane in Brazil. Although its major digestive proteases are known, its complex digestive process still needs to be further understood. We constructed a transcriptome from the midgut of 30-day-old larvae and identified sequences similar to its major digestive protease (cysteine cathepsin Sl-CathL), however, they presented a different amino acid than cysteine in the active cleft. We identified, recombinantly produced, and characterized Sl-CathL-CS, a pseudo cysteine protease, and verified that higher gene expression levels of Sl-CathL-CS occur in the midgut of 30-day old larvae. We reverted the serine residue to cysteine and compared the activity of the mutant (Sl-CathL-mutSC) with Sl-CathL-CS. Sl-CathL-CS presented no protease activity, but Sl-CathL-mutSC hydrolyzed Z-Phe-Arg-AMC (Vmax = 1017.60 ± 135.55, Km = 10.77 mM) and was inhibited by a cysteine protease inhibitor E-64 (Ki = 38.52 ± 1.20 μM), but not by the serine protease inhibitor PMSF. Additionally, Sl-CathL-CS interacted with a sugarcane cystatin, while Sl-CathL-mutSC presented weaker interaction. Finally, protein ligand docking reinforced the differences in the catalytic sites of native and mutant proteins. These results indicate that Sl-CathL-CS is a pseudo-cysteine protease that assists protein digestion possibly by interacting with canecystatins, allowing the true proteases to work.
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Ferreira BA, Toyama D, Henrique-Silva F, Araújo FDA. Recombinant sugarcane cystatin CaneCPI-5 down regulates inflammation and promotes angiogenesis and collagen deposition in a mouse subcutaneous sponge model. Int Immunopharmacol 2021; 96:107801. [PMID: 34162162 DOI: 10.1016/j.intimp.2021.107801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 11/30/2022]
Abstract
Cystatins are natural inhibitors of cysteine peptidases that are found practically in all living organisms. CaneCPI-5 is a sugarcane cystatin with inhibitory activity against human cathepsins B, K and L, which are cysteine proteases highly expressed in a variety of pathological conditions, usually marked by persistent inflammation and processing of the extracellular matrix. This work evaluated the effects of daily administration of the recombinant cystatin CaneCPI-5 [0.01, 0.1 or 1.0 μg in 10 μL of Phosphate-Buffered Saline (PBS)] on the inflammatory, angiogenic and fibrogenic components during chronic inflammatory response induced by subcutaneous sponge implants. The anti-inflammatory effect of treatment with CaneCPI-5 was confirmed by reduction of the levels of the pro-inflammatory mediators TNF-α, CXCL1 and CCL2/JE/MCP-1, as well as the activity of the myeloperoxidase and n-acetyl-β-D-glucosaminidase. Treatment with CaneCPI-5 promoted angiogenesis in the implants, increasing the production of cytokines VEGF and FGF and the formation of new blood vessels. Finally, the administration of the recombinant cystatin favored the production of the pro-fibrogenic cytokine TGF-β1 and collagen deposition next to the implants. Together, these results show the potential therapeutic application of CaneCPI-5 as an anti-inflammatory agent, capable of favoring angiogenesis and fibrogenesis processes, necessary for tissue repair.
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Affiliation(s)
- Bruno Antonio Ferreira
- Programa de Pós-graduação em Genética e Bioquímica, Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil; Departamento de Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Danyelle Toyama
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, Brazil
| | - Flávio Henrique-Silva
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, Brazil
| | - Fernanda de Assis Araújo
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.
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Pelá VT, Lunardelli JGQ, Tokuhara CK, Gironda CC, Silva NDG, Carvalho TS, Santiago AC, Souza BM, Moraes SM, Henrique-Silva F, Magalhães AC, Oliveira RC, Buzalaf MAR. Safety and In Situ Antierosive Effect of CaneCPI-5 on Dental Enamel. J Dent Res 2021; 100:1344-1350. [PMID: 33970042 DOI: 10.1177/00220345211011590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The sugarcane cystatin (CaneCPI-5) was recently cloned and showed strong binding force to dental enamel and protection against initial erosion. However, evaluations on its safety and efficacy in a situation closer to the clinical condition are necessary. In the present study we analyzed 1) the cytotoxicity of CaneCPI-5 on human gingival fibroblasts (HGFs); 2) the ability of CaneCPI-5 to reduce enamel erosion and erosion+abrasion in situ. In part 1, HGFs were treated with CaneCPI-5 (0.025, 0.05, 0.1, 0.5 or 1.0 mg/mL) or no treatment (control). The cytotoxicity was assessed after 60 s and 24 h by mitochondrial activity (MTT), confocal microscopy, and hematoxylin/eosin staining. In part 2, 15 volunteers participated in a double-blind crossover protocol consisting of 3 phases, according to the following treatments: 1) 0.1 mg/mL CaneCPI-5; 2) SnCl2/NaF/AmF (Elmex; positive control); 3) water (negative control). The volunteers wore an appliance containing 4 bovine enamel specimens for 5 d. Each day, the specimens were individually treated with 50 µL of the tested solutions per 60 s and then subjected to erosive challenges (0.1% citric acid, pH 2.5, for 90 s, 4 times per day). After the first and last erosive challenge each day, 2 samples were abraded (toothbrushing, 15 s). Enamel wear was measured by contact profilometry. One or two-way analysis of variance (ANOVA)/Tukey's or Sidak's tests (P < 0.05) were applied. Regardless of the concentration and the experimental time, CaneCPI-5 did not decrease the cell viability compared to the negative control (P < 0.05). Erosion+abrasion led to significantly greater wear compared to erosion only. For both conditions, the lowest wear was found for SnCl2 and CaneCPI-5, which did not differ significantly from each other, but showed significant protection when compared to the negative control. In conclusion, CaneCPI-5 is safe on HGFs and reduces enamel erosive wear to the same extent as a commercial solution used to control erosive tooth wear (ETW).
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Affiliation(s)
- V T Pelá
- Department of Genetics and Evolution, São Carlos Federal University, São Carlos, São Paulo, Brazil
| | - J G Q Lunardelli
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - C K Tokuhara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - C C Gironda
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - N D G Silva
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - T S Carvalho
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - A C Santiago
- Department of Genetics and Evolution, São Carlos Federal University, São Carlos, São Paulo, Brazil
| | - B M Souza
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - S M Moraes
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - F Henrique-Silva
- Department of Genetics and Evolution, São Carlos Federal University, São Carlos, São Paulo, Brazil
| | - A C Magalhães
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - R C Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - M A R Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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10
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Oncolytic reovirus induces ovarian cancer cell apoptosis in a TLR3-dependent manner. Virus Res 2021; 301:198440. [PMID: 33940002 DOI: 10.1016/j.virusres.2021.198440] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 02/05/2023]
Abstract
Globally, ovarian cancer is the seventh most common cancer and the eighth-most common cause of cancer death among women with a five-year survival rate of less than 45%. Although reovirus is known to be effective for treating ovarian cancer, some types of tumor cells still exhibit resistance to reovirus. In order to solve this resistance problem in the treatment of ovarian cancer, we selected the reovirus-resistant OV-90 ovarian cancer cells to study reovirus oncolytic effects. We found that the viability of OV-90 cells decreased after reovirus double-stranded RNA (dsRNA) genome transfection. Interestingly, we observed that chemical blockage of the Toll-like receptor 3 (TLR3)-dsRNA binding complex in OV-90 cells and the inhibition of downstream TLR3 signaling disrupted OV-90 apoptosis triggered by reovirus dsRNA. Together, these results demonstrate that reovirus dsRNA induces reovirus-resistant tumor cell apoptosis through the TLR3 signaling pathway.
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