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Guevara-Vega M, Andrade BS, Palmeira LS, Bernardino SS, Taveira EB, Cardoso-Sousa L, Caixeta DC, Cunha TM, Goulart LR, Jardim ACG, Sabino-Silva R. Chapare virus infection and current perspectives on dentistry. Clin Oral Investig 2024; 28:238. [PMID: 38568249 DOI: 10.1007/s00784-023-05399-z] [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: 08/14/2023] [Accepted: 12/04/2023] [Indexed: 04/05/2024]
Abstract
OBJECTIVES This narrative review addresses relevant points about Chapare virus (CHAV) entry in oral cells, CHAV transmission, and preventive strategies in dental clinical settings. It is critical in dentistry due to the frequent presence of gingival hemorrhage occurred in CHAV-infected patients. MATERIALS AND METHODS Studies related to CHAV were searched in MEDLINE/PubMed, Scopus, EMBASE, and Web-of-Science databases without language restriction or year of publication. RESULTS Recently, the PAHO/WHO and CDC indicate a presence of human-to-human transmission of CHAV associated with direct contact with saliva, blood, or urine, and also through droplets or aerosols created in healthcare procedures. CHAV was detected in human oropharyngeal saliva and gingival bleeding was confirmed in all cases of CHAV hemorrhagic fever, including evidence of nosocomial CHAV transmission in healthcare workers. We revisited the human transferrin receptor 1 (TfR1) expression in oral, nasal, and salivary glands tissues, as well as, we firstly identified the critical residues in the pre-glycoprotein (GP) complex of CHAV that interacts with human TfR1 using cutting-edge in silico bioinformatics platforms associated with molecular dynamic analysis. CONCLUSIONS In this multidisciplinary view, we also point out critical elements to provide perspectives on the preventive strategies for dentists and frontline healthcare workers against CHAV, and in the implementation of salivary diagnostic platforms for virus detection, which can be critical to an urgent plan to prevent human-to-human transmission based on current evidence. CLINICAL RELEVANCE The preventive strategies in dental clinical settings are pivotal due to the aerosol-generating procedures in dentistry with infected patients or suspected cases of CHAV infection.
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Affiliation(s)
- Marco Guevara-Vega
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
- Biomedical Research Group, University of Sucre, Sincelejo, Colombia
| | - Bruno Silva Andrade
- Laboratory of Bioinformatics and Computational Chemistry, Department of Biological Sciences, State University of Southwest of Bahia (UESB), Jequié, Bahia, Brazil.
| | - Lucas Sousa Palmeira
- Laboratory of Bioinformatics and Computational Chemistry, Department of Biological Sciences, State University of Southwest of Bahia (UESB), Jequié, Bahia, Brazil
| | - Sttephany Silva Bernardino
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Elisa Borges Taveira
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Leia Cardoso-Sousa
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Douglas C Caixeta
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Thulio M Cunha
- Department of Pulmonology, School of Medicine, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Luiz R Goulart
- Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Ana Carolina Gomes Jardim
- Laboratory of Antiviral Research, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Robinson Sabino-Silva
- Innovation Center in Salivary Diagnostics and Nanobiotechnology, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil.
- Innovation Center in Salivary Diagnostic and Nanotheranostics, Institute of Biomedical Sciences (ICBIM), Federal University of Uberlandia (UFU), Av. Pará, 1720, Campus Umuarama, Uberlandia, MG, CEP 38400-902, Brazil.
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2
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Silva ATF, Rodrigues CM, Ferreira ICC, Santos LLD, Santos DW, Araújo TG, Canto PPL, Paiva CE, Goulart LR, Maia YCP. A Novel Detection Method of Breast Cancer through a Simple Panel of Biomarkers. Int J Mol Sci 2022; 23:ijms231911983. [PMID: 36233281 PMCID: PMC9570447 DOI: 10.3390/ijms231911983] [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: 09/14/2022] [Revised: 09/25/2022] [Accepted: 09/28/2022] [Indexed: 11/23/2022] Open
Abstract
Circulating tumor cells (CTCs) have been identified as responsible for the spread of tumors to other organs of the body. In this sense, the development of sensitive and specific assays for their detection is important to reduce the number of deaths due to metastases. Here, we assessed whether the detection of CTCs in peripheral blood can serve in the construction of a panel of diagnosis and monitoring treatments of breast cancer (BC), focusing on the expression of markers of epithelial-mesenchymal transition. Through analyzing the blood from women without breast alterations (control), women with benign alterations, women with breast cancer without chemotherapy, and women with breast cancer with chemotherapy, we identified the best markers by transcriptional levels and determined three profiles of CTCs (mesenchymal, intermediate, and epithelial) by flow cytometry which, combined, can be used for diagnosis and therapy monitoring with sensitivity and specificity between 80% and 100%. Therefore, we have developed a method for detecting breast cancer based on the analysis of CTC profiles by epithelial-mesenchymal transition markers which, combined, can be used for the diagnosis and monitoring of therapy.
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Affiliation(s)
- Alinne T. F. Silva
- Molecular Biology and Nutrition Research Group, School of Medicine, Graduate Program in Health Science, Av. Amazonas sn, Block 2E, 2º Floor, Room 210, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Cláudia M. Rodrigues
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Izabella C. C. Ferreira
- Molecular Biology and Nutrition Research Group, School of Medicine, Graduate Program in Health Science, Av. Amazonas sn, Block 2E, 2º Floor, Room 210, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Letícia L. D. Santos
- Molecular Biology and Nutrition Research Group, School of Medicine, Graduate Program in Health Science, Av. Amazonas sn, Block 2E, 2º Floor, Room 210, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Donizeti W. Santos
- Obstetric Division, University Hospital, Federal University of Uberlandia, Av. Pará, 1720, Block 2H, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
| | - Thaise G. Araújo
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Paula P. L. Canto
- Department of Clinical Oncology, Clinics Hospital, Federal University of Uberlandia, Av. Pará, 1720, Oncology Sector, Room 9, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
| | - Carlos E. Paiva
- Department of Clinical Oncology, Graduate Program in Oncology, Palliative Care and Quality of Life Research Group (GPQual), Barretos Cancer Hospital, R. Antenor Duarte Vilela, 1331, Doutor Paulo Prata, Barretos 14784-400, Sao Paulo, Brazil
| | - Luiz R. Goulart
- Molecular Biology and Nutrition Research Group, School of Medicine, Graduate Program in Health Science, Av. Amazonas sn, Block 2E, 2º Floor, Room 210, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
| | - Yara C. P. Maia
- Molecular Biology and Nutrition Research Group, School of Medicine, Graduate Program in Health Science, Av. Amazonas sn, Block 2E, 2º Floor, Room 210, Campus Umuarama, Uberlandia 38405-320, Minas Gerais, Brazil
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas sn, Block 2E, 2º Floor, Room 248, Campus Umuarama, Uberlandia 38405-302, Minas Gerais, Brazil
- Correspondence: ; Tel.: +34-3225-8628
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3
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de Souza TA, Carneiro AP, Narciso AS, Barros CP, Alves DA, Marson LB, Tunala T, de Alcântara TM, de Paiva Maia YC, Briza P, Ferreira F, Goulart LR. Eosinophilic esophagitis auxiliary diagnosis based on a peptide ligand to eosinophil cationic protein in esophageal mucus of pediatric patients. Sci Rep 2022; 12:12226. [PMID: 35851408 PMCID: PMC9289663 DOI: 10.1038/s41598-022-16293-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/07/2022] [Indexed: 11/09/2022] Open
Abstract
Eosinophilic esophagitis (EoE) is a chronic inflammatory condition of the esophagus characterized by increased number of eosinophils. Currently, EoE diagnosis is based on endoscopic procedures for histopathological examination, eosinophils' counting and, often, in clinical practice, the challenge is the differentiation between EoE and gastroesophageal reflux disease (GERD). Our aim was to develop novel peptide ligand to Eosinophil cationic protein (ECP) present in EoE biopsies of patients with potential to be used for detection. We performed a comparative proteomic analysis using liquid chromatography-tandem mass spectrometry (LC-MS/MS) of esophageal biopsies from pediatric patients with eosinophilic esophagitis, gastroesophageal reflux disease and control individuals. Then, phage display technology was used to select peptides against specific up-regulated protein from EoE patients. Twelve phage clones were selected after three biopanning rounds, and the best phage clone reactivity was evaluated by phage-ELISA assay using esophageal mucus samples from 94 pediatric patients. Mass spectrometry showed that eosinophil cationic protein (ECP) was one of the most up-regulated proteins in EoE patients, which is an eosinophil granule protein usually deposited on tissues to mediate remodeling, but in excess may cause fibrosis and hypertrophy, especially in allergic responses. A highly reactive ECP-ligand peptide (E5) was able to distinguish reactive mucus of EoE patients from GERD and the control individuals by Phage-ELISA, achieving a sensitivity of 84.62%, and a specificity of 82.72%. This is the first study that successfully demonstrated an antibody-like peptide targeting ECP at the esophagus mucus as a useful auxilliary tool for EoE diagnosis with a significant association with atopic disorders and dysphagia.ClinicalTrials.gov no.: NCT03069573.
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Affiliation(s)
- Tafarel Andrade de Souza
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil.
| | - Ana Paula Carneiro
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Andreia S Narciso
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Cristina P Barros
- Pediatric Department, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Douglas Alexsander Alves
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Luciane B Marson
- Pediatric Department, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Tatiane Tunala
- Pathology Laboratory, Clinical Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Tânia M de Alcântara
- Pathology Laboratory, Clinical Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Yara Cristina de Paiva Maia
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil.,Nutrition and Molecular Biology Research Goup, School of Medicine, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Peter Briza
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Luiz R Goulart
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil
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4
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Oliveira RM, Teixeira TL, Rodrigues CC, da Silva AA, Borges BC, Brígido RTS, Teixeira SC, Dos Santos MA, Servato JPS, Santos DDO, Silva MJB, Goulart LR, Silva CV. Galectin-3 plays a protective role in Leishmania (Leishmania) amazonensis infection. Glycobiology 2021; 31:1378-1389. [PMID: 34192330 DOI: 10.1093/glycob/cwab062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/24/2021] [Accepted: 06/20/2021] [Indexed: 11/13/2022] Open
Abstract
Leishmania (L.) amazonensis is one of the species responsible for the development of cutaneous leishmaniasis in South America. After entering the vertebrate host, L. (L.) amazonensis invades mainly neutrophils, macrophages, and dendritic cells. Studies have shown that gal-3 acts as a pattern recognition receptor. However, the role of this protein in the context of L. (L.) amazonensis infection remains unclear. Here, we investigated the impact of gal-3 expression on experimental infection by L. (L.) amazonensis. Our data showed that gal-3 plays a role in controlling parasite invasion, replication and the formation of endocytic vesicles. Moreover, mice with gal-3 deficiency showed an exacerbated inflammatory response. Taken together, our data shed light to a critical role of gal-3 in the host response to infection by L. (L.) amazonensis.
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Affiliation(s)
- Rafael M Oliveira
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Thaise L Teixeira
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil.,Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil
| | - Cassiano C Rodrigues
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Aline A da Silva
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Bruna C Borges
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil.,Laboratório de Biomarcadores Tumorais e Osteoimunologia, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Rebecca T S Brígido
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Samuel C Teixeira
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Marlus A Dos Santos
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | | | - Débora de O Santos
- Laboratório de Patologia Bucal, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia 38405-320, Brazil
| | - Marcelo J B Silva
- Laboratório de Biomarcadores Tumorais e Osteoimunologia, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Luiz R Goulart
- Laboratório de Nanobiotecnologia, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
| | - Claudio V Silva
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil
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5
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Melo FCC, Rodrigues LP, Feliciano ND, Costa-Cruz JM, Ribeiro VS, Matias-Colombo BF, Alves-Balvedi RP, Goulart LR. Strongyloidiasis Serological Analysis with Three Different Biological Probes and Their Electrochemical Responses in a Screen-Printed Gold Electrode. Sensors (Basel) 2021; 21:1931. [PMID: 33801807 PMCID: PMC8000320 DOI: 10.3390/s21061931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 02/01/2023]
Abstract
(1) Background: The validation of biological antigens is the study's utmost goal in biomedical applications. We evaluated three different probes with single and multiple epitopes through electrochemical detection of specific IgG in serum for human strongyloidiasis diagnosis. (2) Methods: Screen-printed gold electrodes were used and probes consisting of two single-epitope synthetic peptides (D3 and C10) with different sequences, and a multi-epitope antigen [detergent phase (DP)-hydrophobic membrane proteins]. Human serum samples from three populations were used: Strongyloides stercoralis positive, positive for other parasitic infections and negative controls. To test the immobilization of probes onto a screen-printed gold electrode and the serum IgG detection, electrochemical analyses were carried out through differential pulse voltammetry (DPV) and the electrode surface analyses were recorded using atomic force microscopy. (3) Results: The electrochemical response in screen-printed gold electrodes of peptides D3 and C10 when using positive serum was significantly higher than that when using the DP. Our sensor improved sensitivity to detect strongyloidiasis. (4) Conclusions: Probes' sequences are critical factors for differential electrochemical responses, and the D3 peptide presented the best electrochemical performance for strongyloidiasis detection, and may efficiently substitute whole antigen extracts from parasites for strongyloidiasis diagnosis in electrochemical immunosensors.
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Affiliation(s)
- Francielli C. C. Melo
- National Agency for Health Surveillance-Brasília, SIA Trecho 5, Área Especial 57, Bloco A/B, 1° Andar, Brasília, DF 71205-050, Brazil;
| | - Luciano P. Rodrigues
- Institute of Engineering, Science and Technology, Federal University of the Jequitinhonha and Vale de Mucuri, Av. Um, n. 4.050—Cidade Universitária, Janaúba, MG 39447-790, Brazil;
| | - Nágilla D. Feliciano
- Laboratory of Parasite Diagnosis, Institute of Biomedical Sciences, Federal University of Uberlandia, Av. Amazonas s/n Bl. 4C, sl. 239, Uberlândia, MG 38400-902, Brazil; (N.D.F.); (J.M.C.-C.); (V.S.R.)
| | - Julia M. Costa-Cruz
- Laboratory of Parasite Diagnosis, Institute of Biomedical Sciences, Federal University of Uberlandia, Av. Amazonas s/n Bl. 4C, sl. 239, Uberlândia, MG 38400-902, Brazil; (N.D.F.); (J.M.C.-C.); (V.S.R.)
| | - Vanessa S. Ribeiro
- Laboratory of Parasite Diagnosis, Institute of Biomedical Sciences, Federal University of Uberlandia, Av. Amazonas s/n Bl. 4C, sl. 239, Uberlândia, MG 38400-902, Brazil; (N.D.F.); (J.M.C.-C.); (V.S.R.)
| | - Bruna F. Matias-Colombo
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n Bl. 2E, sl. 248, Uberlândia, MG 38402-022, Brazil; (B.F.M.-C.); (L.R.G.)
| | - Renata P. Alves-Balvedi
- Biological Science, Federal University of Triângulo Mineiro, Rua Antônio Baiano, n 150, Iturama, MG 38280-000, Brazil
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n Bl. 2E, sl. 248, Uberlândia, MG 38402-022, Brazil; (B.F.M.-C.); (L.R.G.)
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Valle AL, Silva ACA, Dantas NO, Sabino-Silva R, Melo FCC, Moreira CS, Oliveira GS, Rodrigues LP, Goulart LR. Application of ZnO Nanocrystals as a Surface-Enhancer FTIR for Glyphosate Detection. Nanomaterials (Basel) 2021; 11:nano11020509. [PMID: 33671396 PMCID: PMC7922178 DOI: 10.3390/nano11020509] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 11/16/2022]
Abstract
Glyphosate detection and quantification is still a challenge. After an extensive review of the literature, we observed that Fourier transform infrared spectroscopy (FTIR) had practically not yet been used for detection or quantification. The interaction between zinc oxide (ZnO), silver oxide (Ag2O), and Ag-doped ZnO nanocrystals (NCs), as well as that between nanocomposite (Ag-doped ZnO/AgO) and glyphosate was analyzed with FTIR to determine whether nanomaterials could be used as signal enhancers for glyphosates. The results were further supported with the use of atomic force microscopy (AFM) imaging. The glyphosate commercial solutions were intensified 10,000 times when incorporated the ZnO NCs. However, strong chemical interactions between Ag and glyphosate may suppress signaling, making FTIR identification difficult. In short, we have shown for the first time that ZnO NCs are exciting tools with the potential to be used as signal amplifiers of glyphosate, the use of which may be explored in terms of the detection of other molecules based on nanocrystal affinity.
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Affiliation(s)
- Anderson L. Valle
- Nanobiotechnology Laboratory, Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia 38402-022, MG, Brazil; (A.L.V.); (F.C.C.M.)
| | - Anielle C. A. Silva
- Laboratory of New Insulating and Semiconductors Materials, Institute of Physics, Federal University of Uberlândia, Uberlândia 38408-100, MG, Brazil;
- Laboratory of New Nanostructured and Functional Materials, Institute of Physics, Federal University of Alagoas, Maceió 57072-970, AL, Brazil
- Correspondence: (A.C.A.S.); (L.R.G.); Tel.: +82-3214-1000 (A.C.A.S.); +34-3225-8440 (L.R.G.)
| | - Noelio O. Dantas
- Laboratory of New Insulating and Semiconductors Materials, Institute of Physics, Federal University of Uberlândia, Uberlândia 38408-100, MG, Brazil;
- Laboratory of New Nanostructured and Functional Materials, Institute of Physics, Federal University of Alagoas, Maceió 57072-970, AL, Brazil
| | - Robinson Sabino-Silva
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia 38402-022, MG, Brazil;
| | - Francielli C. C. Melo
- Nanobiotechnology Laboratory, Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia 38402-022, MG, Brazil; (A.L.V.); (F.C.C.M.)
| | - Cleumar S. Moreira
- Electrical Engineering Department, Federal Institute of Paraíba, João Pessoa 58015-020, PB, Brazil;
| | - Guedmiller S. Oliveira
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38402-022, MG, Brazil;
| | - Luciano P. Rodrigues
- Institute of Engineering, Science and Technology, Federal University of Jequitinhonha and Mucuri’s Valleys, Janaúba 39447-814, MG, Brazil;
| | - Luiz R. Goulart
- Nanobiotechnology Laboratory, Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia 38402-022, MG, Brazil; (A.L.V.); (F.C.C.M.)
- Correspondence: (A.C.A.S.); (L.R.G.); Tel.: +82-3214-1000 (A.C.A.S.); +34-3225-8440 (L.R.G.)
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7
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Quaresma DMO, Justino AB, Sousa RMF, Munoz RAA, de Aquino FJT, Martins MM, Goulart LR, Pivatto M, Espindola FS, de Oliveira A. Antioxidant compounds from Banisteriopsis argyrophylla leaves as α-amylase, α-glucosidase, lipase, and glycation inhibitors. Bioorg Chem 2020; 105:104335. [PMID: 33074116 DOI: 10.1016/j.bioorg.2020.104335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/27/2020] [Accepted: 09/29/2020] [Indexed: 01/16/2023]
Abstract
Banisteriopsis argyrophylla belongs to the Malpighiaceae family, which is a species from Cerrado, also known as "cipó-prata" or "cipó-folha-de-prata." Several species of this family present biological potential. This work reports the chemical identification of the ethanol extract (EE) and its fractions from B. argyrophylla leaves and shows the analysis of the antioxidant activity and inhibitory effects on activities of α-amylase, α-glucosidase and lipase, and non-enzymatic glycation. The ethyl acetate fraction (EAF) and n-butanol fraction (BF) showed antioxidant activity, with IC50 values of 4.1 ± 0.1 and 4.8 ± 0.1 μg mL-1, respectively, by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, and IC50 values of 6046.3 ± 174.2 and 6264.2 ± 32.2 µmol Trolox eq g-1 by the oxygen radical absorbance capacity (ORAC) method. Furthermore, the DPPH method with these fractions presented electroactive species with antioxidant potential, as shown by the differential pulse voltammetry (DPV) method. The inhibitory effects of the EAF and BF were demonstrated by the following results: IC50 of 5.1 ± 0.3 and 2.5 ± 0.2 μg mL-1 for α-amylase, IC50 of 1093.5 ± 26.0 and 1250.8 ± 21.9 μg mL-1 for α-glucosidase, IC50 of 8.3 ± 4.1 and 4.4 ± 1.0 μg mL-1 for lipase, and IC50 of 1.3 ± 0.1 and 0.9 ± 0.1 μg mL-1 for glycation. Some bioactive compounds were identified by (-)-ESI-MS/MS, such as catechin, procyanidins, glycosylated flavonoids, kaempferol, and megastigmane glucosides. The antidiabetic activity of B.argyrophylla has been reported for the first time.
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Affiliation(s)
- Daiane M O Quaresma
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Allisson B Justino
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Raquel M F Sousa
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Rodrigo A A Munoz
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Francisco J T de Aquino
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Mário M Martins
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Luiz R Goulart
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Marcos Pivatto
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Foued S Espindola
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Alberto de Oliveira
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil.
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8
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Araujo GR, Aglas L, Vaz ER, Machado Y, Huber S, Himly M, Duschl A, Goulart LR, Ferreira F. TGFβ1 mimetic peptide modulates immune response to grass pollen allergens in mice. Allergy 2020; 75:882-891. [PMID: 31750952 PMCID: PMC7217028 DOI: 10.1111/all.14108] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/22/2019] [Accepted: 09/29/2019] [Indexed: 12/15/2022]
Abstract
Background Transforming growth factor β1 (TGFβ1) is a cytokine that exerts immunosuppressive functions, as reflected by its ability to induce regulatory T (Treg) cell differentiation and inhibit Th1 and Th2 responses. Hence, peptides that mimic the active core domain of TGFβ1 may be promising candidates for modulation of the allergic response. This study aimed to investigate a synthetic TGFβ1 mimetic peptide (TGFβ1‐mim) for its ability to modulate the immune response during allergic sensitization to grass pollen allergens. Methods The in vitro action of TGFβ1‐mim was evaluated in human lung epithelial cells, Jurkat cells, and rat basophilic leukemia cells. The in vivo action was evaluated in a murine model of Phl p 5 allergic sensitization. Additionally, the Th2 modulatory response was evaluated in IL‐4 reporter mice. Results In vitro, TGFβ1‐mim downregulated TNF‐α production, IL‐8 gene expression, and cytokine secretion, upregulated IL‐10 secretion, and inhibited Phl p 5‐induced basophil degranulation. During Phl p 5 sensitization in mice, TGFβ1‐mim downregulated IL‐2, IL‐4, IL‐5, IL‐13, and IFN‐γ, upregulated IL‐10, and induced Treg cell production. Furthermore, mice treated with TGFβ1‐mim had lower levels of IgE, IgG1, IgG2a and higher levels of IgA antibodies than control mice. In a reporter mouse, the mimetic inhibited Th2 polarization. Conclusion The TGFβ1‐mim efficiently modulated various important events that exacerbate the allergic microenvironment, including the production of main cytokines that promote Th1 and Th2 differentiation, and the induction of allergen‐specific regulatory T cells, highlighting its potential use in therapeutic approaches to modulate the immune response toward environmental allergens.
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Affiliation(s)
- Galber R. Araujo
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Lorenz Aglas
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Emília R. Vaz
- Laboratory of Nanobiotechnology Institute of Biotechnology Federal University of Uberlândia Uberlândia Brazil
| | - Yoan Machado
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Sara Huber
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Martin Himly
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Albert Duschl
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology Institute of Biotechnology Federal University of Uberlândia Uberlândia Brazil
| | - Fatima Ferreira
- Department of Biosciences University of Salzburg Salzburg Austria
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9
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Campos-Fernández E, Barcelos L, Souza AG, Goulart LR, Alonso-Goulart V. Post-SELEX Optimization and Characterization of a Prostate Cancer Cell-Specific Aptamer for Diagnosis. ACS Omega 2020; 5:3533-3541. [PMID: 32118168 PMCID: PMC7045564 DOI: 10.1021/acsomega.9b03855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/31/2020] [Indexed: 05/27/2023]
Abstract
The RNA aptamer A4 binds specifically to tumor prostate cells. A4 was modified (mA4) by adding deoxyribonucleotides to its ends to remove the reactive 2' hydroxyl groups of RNA's sugar at the ends of the aptamer and to make it more stable to widespread RNase contamination in laboratories. Thus, mA4 would be more suitable to use in the clinical settings of prostate cancer (PCa). We aimed to characterize this optimized oligonucleotide to verify its potential as a diagnostic tool. The sequences and structures of A4 and mA4 were compared through in silico approaches to corroborate their similarity. Then, the degradation of mA4 was measured in appropriate media and human plasma for in vitro tests. In addition, the binding abilities of A4 to prostate cells were contrasted with those of mA4. The effects of mA4 were assessed on the viability, proliferation, and migration of human prostate cell lines RWPE-1 and PC-3 in three-dimensional (3D) cell cultures. mA4 showed configurational motifs similar to those of A4, displayed a half-life in plasma substantially higher than A4, and exhibited a comparable binding capacity to that of A4 and unaltered viability, proliferation, and migration of prostatic cells. Therefore, mA4 maintains the crucial 3D structures of A4 that would allow binding to its target, as suggested by in silico and binding analyses. mA4 may be a good PCa reporter as it does not change cellular parameters of prostate cells when incubated with it. Its additional deoxyribonucleotides make mA4 inherently more chemically stable than A4, avoiding its degradation and favoring its storage and handling for clinical applications. These characteristics support the potential of mA4 to be used in diagnostic systems for PCa.
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Affiliation(s)
- Esther Campos-Fernández
- Laboratory
of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia 38408-100, Minas Gerais, Brazil
| | - Letícia
S. Barcelos
- Laboratory
of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia 38408-100, Minas Gerais, Brazil
| | - Aline G. Souza
- Laboratory
of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia 38408-100, Minas Gerais, Brazil
| | - Luiz R. Goulart
- Laboratory
of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia 38408-100, Minas Gerais, Brazil
- Department
of Medical Microbiology and Immunology, University of California-Davis, Davis 95616, California, United States
| | - Vivian Alonso-Goulart
- Laboratory
of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia 38408-100, Minas Gerais, Brazil
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10
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Souza AG, Silva IBB, Campos-Fernandez E, Barcelos LS, Souza JB, Marangoni K, Goulart LR, Alonso-Goulart V. Comparative Assay of 2D and 3D Cell Culture Models: Proliferation, Gene Expression and Anticancer Drug Response. Curr Pharm Des 2019; 24:1689-1694. [PMID: 29623827 DOI: 10.2174/1381612824666180404152304] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/09/2018] [Accepted: 03/26/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND In vitro tests allow establishing experimental variables. However, in vitro results cannot be extrapolated to in vivo tests. Considering that three-dimensional (3D) culture has been one of the best ways to portray the in vivo system of most cell types, it is possible to carry out assays with a great clinical relevance for the analysis of the screening, action and resistance of antitumor drugs. OBJECTIVE Thus, the objective of the present study was to compare between 2D and 3D cell culture forms to conclude which is the most suitable model for preclinical in vitro drug testing. METHOD We evaluated the proliferation, genetic expression and chemoresistance of prostate tumor cell lines, PC- 3, LNCaP and DU145. Prostate tumor cell lines PC-3, LNCaP and DU145 were treated with the antineoplastic drugs paclitaxel and docetaxel and evaluated with cytotoxicity, cell proliferation and gene expression assays in 2D and magnetic 3D bioprinting cultures. RESULTS Lower cell proliferation rate, more resistance to paclitaxel and docetaxel and altered gene expression profile was shown in 3D cell culture comparing with its 2D counterpart. CONCLUSION 3D cell culture exhibited a more similar behavior to in vivo systems, being a promising and more reliable tool for the development of new drugs.
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Affiliation(s)
- Aline G Souza
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Isaura Beatriz B Silva
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Esther Campos-Fernandez
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Leticia S Barcelos
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Jessica Brito Souza
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Karina Marangoni
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
| | - Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil.,University of California-Davis, Department of Medical Microbiology and Immunology, Davis/CA, United States
| | - Vivian Alonso-Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, MG, Uberlandia, Brazil
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11
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Campos-Fernández E, Barcelos LS, de Souza AG, Goulart LR, Alonso-Goulart V. Research landscape of liquid biopsies in prostate cancer. Am J Cancer Res 2019; 9:1309-1328. [PMID: 31392072 PMCID: PMC6682718] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 06/10/2023] Open
Abstract
Studies show that liquid biopsies are efficient in the detection of circulating cancer products. However, scientific community has not yet implemented this technology in routine clinical practice. Liquid biopsies are less invasive than traditional surgical ones because they rely on the detection of specific biomarkers in readily accessible body fluid samples. The clinical management of prostate cancer depends on the controversial blood serum biomarker PSA (prostate specific antigen). PSA tests have a low accuracy. In addition, a positive PSA result for prostate cancer needs a confirmation through a tissue biopsy. Thus, liquid biopsies are considered tools to find a surrogate biomarker. This review aimed to show the landscape of liquid biopsies in prostate cancer research to understand its challenges and foresee the trends in this area. We performed an exhaustive Pubmed search of articles reporting the study of liquid biopsies in prostate cancer with circulating tumor cells, cell-free nucleic acids and extracellular vesicles as targets. After a thorough analysis, we retrieved sixty-two relevant articles. Among the identified articles, the most used target and body fluid were circulating tumor cells and blood, respectively. Enumeration of circulating tumor cells was the most reported parameter, but it was often combined with other biomarkers. The most used methods for biomarker detection were those based on transcriptome analysis. Despite the vast literature about liquid biopsy in prostate cancer, most studies seem to be stuck on improving the yield of technologies. Consequently, they seem to test a limited number of samples. Larger cohorts could provide robust evidence to translate liquid biopsies of prostate cancer to the clinics.
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Affiliation(s)
- Esther Campos-Fernández
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of UberlândiaUberlândia, MG, Brazil
| | - Letícia S Barcelos
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of UberlândiaUberlândia, MG, Brazil
| | - Aline Gomes de Souza
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of UberlândiaUberlândia, MG, Brazil
| | - Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of UberlândiaUberlândia, MG, Brazil
- Department of Medical Microbiology and Immunology, University of California-DavisDavis, CA, USA
| | - Vivian Alonso-Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of UberlândiaUberlândia, MG, Brazil
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12
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Morais TP, Zaini PA, Chakraborty S, Gouran H, Carvalho CP, Almeida-Souza HO, Souza JB, Santos PS, Goulart LR, Luz JMQ, Nascimento R, Dandekar AM. The plant-based chimeric antimicrobial protein SlP14a-PPC20 protects tomato against bacterial wilt disease caused by Ralstonia solanacearum. Plant Sci 2019; 280:197-205. [PMID: 30823998 DOI: 10.1016/j.plantsci.2018.11.017] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/01/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
Cecropin-B (CecB) is a peptide with well-established antimicrobial properties against different phytopathogenic bacteria. Despite modest action against Ralstonia solanacearum, its animal source limits the acceptance in transgenic applications. To overcome this, we selected eight alpha-helical (AH) cationic peptides derived from plant protein sequences and investigated their antimicrobial properties against R. solanacearum. Remarkably, PPC20 (a linear AH-peptide present in phosphoenolpyruvate carboxylase) has a three-fold lower lethal dose on R. solanacearum than CecB and lower toxicity to human intestinal epithelial cells. Linking PPC20 to SlP14a (part of a pathogenesis-related protein) established an apoplast-targeted protein providing a means of secreting and stabilizing the antimicrobial peptide in the plant compartment colonized by the pathogen. SlP14a is also a potential antimicrobial, homologous to a human elastase which likely targets outer membrane proteins in Gram-negative bacteria. Recombinant SlP14a-PPC20 showed antibacterial activity against R. solanacearum in vitro, making it a promising candidate for plant protection. This was confirmed with genetically-modified tomato plants engineered to express SlP14a-PPC20, in which bacterial populations in stems were reduced compared to inoculated wild-type control plants. Disease symptoms were also markedly less severe in SlP14a-PPC20-expressing plants, demonstrating a viable strategy to improve resistance against bacterial wilt in tomato.
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Affiliation(s)
- Tâmara P Morais
- Institute of Agricultural Sciences, University of Uberlândia, Uberlândia, 38410-337, MG, Brazil; Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil
| | - Paulo A Zaini
- Department of Plant Sciences, University of California, Davis, 95616, CA, USA
| | - Sandeep Chakraborty
- Department of Plant Sciences, University of California, Davis, 95616, CA, USA
| | - Hossein Gouran
- Department of Plant Sciences, University of California, Davis, 95616, CA, USA
| | - Camila P Carvalho
- Department of Plant Pathology, University of São Paulo, Piracicaba, SP, 13418-900 Brazil
| | - Hebréia O Almeida-Souza
- Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil
| | - Jessica B Souza
- Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil
| | - Paula S Santos
- Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil
| | - Luiz R Goulart
- Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil; Department of Plant Sciences, University of California, Davis, 95616, CA, USA
| | - José M Q Luz
- Institute of Agricultural Sciences, University of Uberlândia, Uberlândia, 38410-337, MG, Brazil
| | - Rafael Nascimento
- Institute of Genetics and Biochemistry, University of Uberlândia, Uberlândia, 38400-902, MG, Brazil; Department of Plant Sciences, University of California, Davis, 95616, CA, USA
| | - Abhaya M Dandekar
- Department of Plant Sciences, University of California, Davis, 95616, CA, USA.
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13
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Cordeiro BF, Oliveira ER, da Silva SH, Savassi BM, Acurcio LB, Lemos L, Alves JDL, Carvalho Assis H, Vieira AT, Faria AMC, Ferreira E, Le Loir Y, Jan G, Goulart LR, Azevedo V, Carvalho RDDO, do Carmo FLR. Whey Protein Isolate-Supplemented Beverage, Fermented by Lactobacillus casei BL23 and Propionibacterium freudenreichii 138, in the Prevention of Mucositis in Mice. Front Microbiol 2018; 9:2035. [PMID: 30258413 PMCID: PMC6143704 DOI: 10.3389/fmicb.2018.02035] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/13/2018] [Indexed: 12/12/2022] Open
Abstract
Mucositis is a clinically important gastrointestinal inflammatory infirmity, generated by antineoplastic drugs cytotoxic effects. The inflammatory process caused by this disease frequently leads to derangements in the alimentary tract and great malaise for the patient. Novel strategies are necessary for its prevention or treatment, as currently available treatments of mucositis have several limitations in relieving its symptoms. In this context, several research groups have investigated the use of probiotic bacteria, and in particular dairy bacterial strains. Compelling evidences reveal that milk fermented by certain probiotic bacteria has the capacity to ameliorate intestinal inflammatory disorders. In addition, innovative probiotic delivery strategies, based on probiotics incorporation into protective matrices, such as whey proteins, were able to increase the therapeutic effect of probiotic strains by providing extra protection for bacteria against environmental stresses. Therefore, in this study, we evaluated the role of the whey protein isolate (WPI), when added to skim milk fermented by Lactobacillus casei BL23 (L. casei BL23) or by Propionibacterium freudenreichii CIRM-BIA138 (P. freudenreichii 138), as a protective matrix against in vitro stress challenges. In addition, we investigated the therapeutic effect of these fermented beverages in a murine model of mucositis induced by 5-Fluorouracil (5-FU). Our results demonstrated that milk supplementation with 30% (w/v) of WPI increases the survival rate of both strains when challenged with acid, bile salts, high temperature and cold storage stresses, compared to fermented skim milk without the addition of WPI. Moreover, treatment with the probiotic beverages prevented weight loss and intestinal damages in mice receiving 5-FU. We conclude that the presence of WPI maximizes the anti-inflammatory effects of L. casei BL23, but not for P. freudenreichii 138, suggesting that whey protein enhancement of probiotic activity might be strain-dependent.
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Affiliation(s)
- Bárbara F. Cordeiro
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Emiliano R. Oliveira
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Sara H. da Silva
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Bruna M. Savassi
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Leonardo B. Acurcio
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Luisa Lemos
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Juliana de L. Alves
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Helder Carvalho Assis
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Angélica T. Vieira
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Ana M. C. Faria
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Enio Ferreira
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | | | - Gwénaël Jan
- STLO, INRA, Agrocampus Ouest, Rennes, France
| | - Luiz R. Goulart
- Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, Brazil
| | - Vasco Azevedo
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Rodrigo D. de O. Carvalho
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | - Fillipe L. R. do Carmo
- Institute of Biological Sciences, Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
- STLO, INRA, Agrocampus Ouest, Rennes, France
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14
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Souza AG, B. Silva IB, Campos-Fernández E, Marangoni K, F. Bastos VA, Alves PT, Goulart LR, Alonso-Goulart V. Extracellular vesicles as drivers of epithelial-mesenchymal transition and carcinogenic characteristics in normal prostate cells. Mol Carcinog 2018; 57:503-511. [DOI: 10.1002/mc.22775] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/08/2017] [Accepted: 12/11/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Aline G. Souza
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Isaura Beatriz B. Silva
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Esther Campos-Fernández
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Karina Marangoni
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Victor A. F. Bastos
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Patrícia T. Alves
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
- Department of Medical Microbiology and Immunology; University of California-Davis; Davis California
| | - Vivian Alonso-Goulart
- Laboratory of Nanobiotechnology; Institute of Biotechnology; Federal University of Uberlândia; MG Brazil
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15
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Zaini PA, Nascimento R, Gouran H, Cantu D, Chakraborty S, Phu M, Goulart LR, Dandekar AM. Molecular Profiling of Pierce's Disease Outlines the Response Circuitry of Vitis vinifera to Xylella fastidiosa Infection. Front Plant Sci 2018; 9:771. [PMID: 29937771 PMCID: PMC6002507 DOI: 10.3389/fpls.2018.00771] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 05/18/2018] [Indexed: 05/19/2023]
Abstract
Pierce's disease is a major threat to grapevines caused by the bacterium Xylella fastidiosa. Although devoid of a type 3 secretion system commonly employed by bacterial pathogens to deliver effectors inside host cells, this pathogen is able to influence host parenchymal cells from the xylem lumen by secreting a battery of hydrolytic enzymes. Defining the cellular and biochemical changes induced during disease can foster the development of novel therapeutic strategies aimed at reducing the pathogen fitness and increasing plant health. To this end, we investigated the transcriptional, proteomic, and metabolomic responses of diseased Vitis vinifera compared to healthy plants. We found that several antioxidant strategies were induced, including the accumulation of gamma-aminobutyric acid (GABA) and polyamine metabolism, as well as iron and copper chelation, but these were insufficient to protect the plant from chronic oxidative stress and disease symptom development. Notable upregulation of phytoalexins, pathogenesis-related proteins, and various aromatic acid metabolites was part of the host responses observed. Moreover, upregulation of various cell wall modification enzymes followed the proliferation of the pathogen within xylem vessels, consistent with the intensive thickening of vessels' secondary walls observed by magnetic resonance imaging. By interpreting the molecular profile changes taking place in symptomatic tissues, we report a set of molecular markers that can be further explored to aid in disease detection, breeding for resistance, and developing therapeutics.
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Affiliation(s)
- Paulo A. Zaini
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Rafael Nascimento
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Hossein Gouran
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Dario Cantu
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States
| | - Sandeep Chakraborty
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - My Phu
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Luiz R. Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Abhaya M. Dandekar
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
- *Correspondence: Abhaya M. Dandekar,
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16
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Rodovalho VR, Araujo GR, Vaz ER, Ueira-Vieira C, Goulart LR, Madurro JM, Brito-Madurro AG. Peptide-based electrochemical biosensor for juvenile idiopathic arthritis detection. Biosens Bioelectron 2017; 100:577-582. [PMID: 29031228 DOI: 10.1016/j.bios.2017.10.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 07/17/2017] [Revised: 09/22/2017] [Accepted: 10/04/2017] [Indexed: 12/24/2022]
Abstract
Juvenile idiopathic arthritis (JIA) is a wide group of diseases, characterized by synovial inflammation and joint tissue damage. Due to the delay in the implementation of biomarkers into clinical practice and the association with severe sequels, there is an imperative need for new JIA diagnosis strategies. Electrochemical biosensors based on screen-printed electrodes and peptides are promising alternatives for molecular diagnosis. In this work, a novel biosensor for detecting juvenile idiopathic arthritis (JIA) was developed based on the immobilization of the PRF+1 mimetic peptide, as recognition biological element, on the surface of screen-printed carbon electrode. This biosensor was able to discriminate the JIA positive and negative serum samples from different individuals using differential pulse voltammetry, presenting limits of detection and quantification in diluted samples of 1:784 (v/v) and 1:235 (v/v), respectively. Evaluation by electrochemical impedance spectroscopy showed RCT 3 times higher for JIA positive sample than for a pool of human serum samples from healthy individuals. Surface analysis of the biosensor by atomic force microscopy, after contact with JIA positive serum, presented great globular clusters irregularly distributed. The long-term stability of the biosensor was evaluated, remaining functional for over 40 days of storage (after storage at 8°C). Therefore, a simple, miniaturized and selective biosensor was developed, being the first one based on mimetic peptide and screen-printed carbon electrode, aiming at the diagnosis of the juvenile idiopathic arthritis in real serum samples.
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Affiliation(s)
- V R Rodovalho
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - G R Araujo
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - E R Vaz
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - C Ueira-Vieira
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - L R Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - J M Madurro
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - A G Brito-Madurro
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil.
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17
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Goulart LR, da S. Ribeiro V, Costa-Cruz JM. Anti-parasitic Antibodies from Phage Display. Recombinant Antibodies for Infectious Diseases 2017; 1053:155-171. [DOI: 10.1007/978-3-319-72077-7_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Abstract
Development of peptide vaccines through the phage display technology is a powerful strategy that relies on short peptides expressed in the phage capsid surface to induce highly targeted immune responses. Phage display-derived immunogenic peptides can be used directly as a phage-fused peptide reagent or as a synthetic peptide with specific modifications, according to target molecule and disease pathogen/parasite. Peptides' selection (mimotopes) can be performed against monoclonal or polyclonal antibodies to disclose determinant regions (epitopes) that can induce a neutralizing response. Validations of mimotopes are performed in vitro and in vivo, based on cell culture and animal models, to demonstrate its immunogenic potential for final vaccine formulations with an appropriate adjuvant. Here we present specific methods for the discovery of novel immunogenic peptides based on phage display.
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Affiliation(s)
- Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Campus Umuarama, Bl 2E, Sl. 248, Uberlândia, MG, Brazil.
| | - Paula de S Santos
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Campus Umuarama, Bl 2E, Sl. 248, Uberlândia, MG, Brazil
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19
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Salles BCS, Costa LE, Alves PT, Dias ACS, Vaz ER, Menezes-Souza D, Ramos FF, Duarte MC, Roatt BM, Chávez-Fumagalli MA, Tavares CAP, Gonçalves DU, Rocha RL, Goulart LR, Coelho EAF. Leishmania infantum mimotopes and a phage-ELISA assay as tools for a sensitive and specific serodiagnosis of human visceral leishmaniasis. Diagn Microbiol Infect Dis 2016; 87:219-225. [PMID: 27939286 DOI: 10.1016/j.diagmicrobio.2016.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 07/15/2016] [Revised: 10/17/2016] [Accepted: 11/21/2016] [Indexed: 12/19/2022]
Abstract
Serological methods used to diagnose visceral leishmaniasis (VL) are considered minimally invasive, but they present problems related with their sensitivity and/or specificity. In this study, a subtractive selection using the phage display technology against antibodies from healthy subjects living in endemic and non-endemic areas of disease, as well as from Chagas disease patients and those developing active VL, was developed. The aim of this study was to select bacteriophage-fused epitopes to be used in the serodiagnosis of human VL. Eight phage clones were selected after the bio-panning rounds, and their reactivity was evaluated in a phage-ELISA assay against a human serological panel. A wild-type clone and the recombinant K39-based immunochromatographic test were used as controls. In the results, it was shown that all clones showed an excellent performance to serologically identify VL patients, demonstrating the feasibility of the isolated phages for developing a specific and sensitive serodiagnosis of human VL.
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Affiliation(s)
- Beatriz C S Salles
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Lourena E Costa
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Patrícia T Alves
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas s/n, Campus Umuarama, Bloco 2E, Sala 248, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Ana C S Dias
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas s/n, Campus Umuarama, Bloco 2E, Sala 248, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Emília R Vaz
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas s/n, Campus Umuarama, Bloco 2E, Sala 248, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Daniel Menezes-Souza
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda F Ramos
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana C Duarte
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Bruno M Roatt
- Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Miguel A Chávez-Fumagalli
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Carlos A P Tavares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Denise U Gonçalves
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Regina L Rocha
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil
| | - Luiz R Goulart
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas s/n, Campus Umuarama, Bloco 2E, Sala 248, 38400-902, Uberlândia, Minas Gerais, Brazil; Department of Medical Microbiology and Immunology, University of California-Davis, 95616, Davis, CA, USA.
| | - Eduardo A F Coelho
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 30130-100, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
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20
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McKenna OE, Asam C, Araujo GR, Roulias A, Goulart LR, Ferreira F. How relevant is panallergen sensitization in the development of allergies? Pediatr Allergy Immunol 2016; 27:560-8. [PMID: 27129102 PMCID: PMC5006871 DOI: 10.1111/pai.12589] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2016] [Indexed: 12/21/2022]
Abstract
Panallergens comprise various protein families of plant as well as animal origin and are responsible for wide IgE cross-reactivity between related and unrelated allergenic sources. Such cross-reactivities include reactions between various pollen sources, pollen and plant-derived foods as well as invertebrate-derived inhalants and foodstuff. Here, we provide an overview on the most clinically relevant panallergens from plants (profilins, polcalcins, non-specific lipid transfer proteins, pathogenesis-related protein family 10 members) and on the prominent animal-derived panallergen family, tropomyosins. In addition, we explore the role of panallergens in the sensitization process and progress of the allergic disease. Emphasis is given on epidemiological aspects of panallergen sensitization and clinical manifestations. Finally, the issues related to diagnosis and therapy of patients sensitized to panallergens are outlined, and the use of panallergens as predictors for cross-reactive allergy and as biomarkers for disease severity is discussed.
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Affiliation(s)
- Olivia E McKenna
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Claudia Asam
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Galber R Araujo
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria.,Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, Brazil
| | - Anargyros Roulias
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, Brazil.,Department of Medical Microbiology and Immunology, University of California, Davis, CA, USA
| | - Fatima Ferreira
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
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21
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Gouran H, Gillespie H, Nascimento R, Chakraborty S, Zaini PA, Jacobson A, Phinney BS, Dolan D, Durbin-Johnson BP, Antonova ES, Lindow SE, Mellema MS, Goulart LR, Dandekar AM. The Secreted Protease PrtA Controls Cell Growth, Biofilm Formation and Pathogenicity in Xylella fastidiosa. Sci Rep 2016; 6:31098. [PMID: 27492542 PMCID: PMC4974619 DOI: 10.1038/srep31098] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/13/2016] [Indexed: 11/09/2022] Open
Abstract
Pierce's disease (PD) is a deadly disease of grapevines caused by the Gram-negative bacterium Xylella fastidiosa. Though disease symptoms were formerly attributed to bacteria blocking the plant xylem, this hypothesis is at best overly simplistic. Recently, we used a proteomic approach to characterize the secretome of X. fastidiosa, both in vitro and in planta, and identified LesA as one of the pathogenicity factors of X. fastidiosa in grapevines that leads to leaf scorching and chlorosis. Herein, we characterize another such factor encoded by PD0956, designated as an antivirulence secreted protease "PrtA" that displays a central role in controlling in vitro cell proliferation, length, motility, biofilm formation, and in planta virulence. The mutant in X. fastidiosa exhibited reduced cell length, hypermotility (and subsequent lack of biofilm formation) and hypervirulence in grapevines. These findings are supported by transcriptomic and proteomic analyses with corresponding plant infection data. Of particular interest, is the hypervirulent response in grapevines observed when X. fastidiosa is disrupted for production of PrtA, and that PD-model tobacco plants transformed to express PrtA exhibited decreased symptoms after infection by X. fastidiosa.
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Affiliation(s)
- Hossein Gouran
- Plant Sciences Department, University of California, Davis, CA, USA
| | - Hyrum Gillespie
- Plant Sciences Department, University of California, Davis, CA, USA
| | - Rafael Nascimento
- Plant Sciences Department, University of California, Davis, CA, USA
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Brazil
| | | | - Paulo A. Zaini
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Brazil
| | - Aaron Jacobson
- Plant Sciences Department, University of California, Davis, CA, USA
| | - Brett S. Phinney
- Proteomics Core, Genome Center, University of California, Davis, USA
| | - David Dolan
- Plant Sciences Department, University of California, Davis, CA, USA
| | | | - Elena S. Antonova
- Plant and Microbial Biology Department, University of Berkeley, Berkeley, CA, USA
| | - Steven E. Lindow
- Plant and Microbial Biology Department, University of Berkeley, Berkeley, CA, USA
| | - Matthew S. Mellema
- Surgical and Radiological Sciences, Vet Med, University of California, Davis, CA, USA
| | - Luiz R. Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Brazil
- Department of Medical Microbiology and Immunology, University of California, Davis, CA, USA
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22
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Sena AAS, Glavan T, Jiang G, Sankaran-Walters S, Grishina I, Dandekar S, Goulart LR. Divergent Annexin A1 expression in periphery and gut is associated with systemic immune activation and impaired gut immune response during SIV infection. Sci Rep 2016; 6:31157. [PMID: 27484833 PMCID: PMC4971494 DOI: 10.1038/srep31157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 07/15/2016] [Indexed: 01/18/2023] Open
Abstract
HIV-1 disease progression is paradoxically characterized by systemic chronic immune activation and gut mucosal immune dysfunction, which is not fully defined. Annexin A1 (ANXA1), an inflammation modulator, is a potential link between systemic inflammation and gut immune dysfunction during the simian immunodeficiency virus (SIV) infection. Gene expression of ANXA1 and cytokines were assessed in therapy-naïve rhesus macaques during early and chronic stages of SIV infection and compared with SIV-negative controls. ANXA1 expression was suppressed in the gut but systemically increased during early infection. Conversely, ANXA1 expression increased in both compartments during chronic infection. ANXA1 expression in peripheral blood was positively correlated with HLA-DR+CD4+ and CD8+ T-cell frequencies, and negatively associated with the expression of pro-inflammatory cytokines and CCR5. In contrast, the gut mucosa presented an anergic cytokine profile in relation to ANXA1 expression. In vitro stimulations with ANXA1 peptide resulted in decreased inflammatory response in PBMC but increased activation of gut lymphocytes. Our findings suggest that ANXA1 signaling is dysfunctional in SIV infection, and may contribute to chronic inflammation in periphery and with immune dysfunction in the gut mucosa. Thus, ANXA1 signaling may be a novel therapeutic target for the resolution of immune dysfunction in HIV infection.
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Affiliation(s)
- Angela A S Sena
- Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil.,Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Tiffany Glavan
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Guochun Jiang
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Sumathi Sankaran-Walters
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Irina Grishina
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Satya Dandekar
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
| | - Luiz R Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil.,Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, USA
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23
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Melo IS, Santos YMO, Costa MA, Pacheco ALD, Silva NKGT, Cardoso-Sousa L, Pereira UP, Goulart LR, Garcia-Cairasco N, Duzzioni M, Gitaí DLG, Tilelli CQ, Sabino-Silva R, Castro OW. Inhibition of sodium glucose cotransporters following status epilepticus induced by intrahippocampal pilocarpine affects neurodegeneration process in hippocampus. Epilepsy Behav 2016; 61:258-268. [PMID: 27429292 DOI: 10.1016/j.yebeh.2016.05.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/22/2016] [Accepted: 05/23/2016] [Indexed: 10/21/2022]
Abstract
Temporal lobe epilepsy (TLE) is characterized by spontaneous recurrent seizures, starting from secondary functional disorders due to several insults, including self-sustaining continuous seizures identified as status epilepticus (SE). Although hypoglycemia has been associated with SE, the effect of inhibition of the Na(+)/glucose cotransporters (SGLTs) on hippocampus during SE is still unknown. Here we evaluated the functional role of SGLT in the pattern of limbic seizures and neurodegeneration process after pilocarpine (PILO)-induced SE. Vehicle (VEH, 1μL) or phlorizin, a specific SGLT inhibitor (PZN, 1μL, 50μg/μL), was administered in the hippocampus of rats 30min before PILO (VEH+PILO or PZN+PILO, respectively). The limbic seizures were classified using the Racine's scale, and the amount of wet dog shakes (WDS) was quantified before and during SE. Neurodegeneration process was evaluated by Fluoro-Jade C (FJ-C), and FJ-C-positive neurons (FJ-C+) were counted 24h and 15days after SE. The PZN-treated rats showed higher (p<0.05) number of WDS when compared with VEH+PILO. There was no difference in seizure severity between PZN+PILO and VEH+PILO groups. However, the pattern of limbic seizures significantly changed in PZN+PILO. Indeed, the class 5 seizures repeated themselves more times (p<0.05) than the other classes in the PZN group at 50min after SE induction. The PZN+PILO animals had a higher (p<0.05) number of FJ-C+ cells in the dentate gyrus (DG), hilus, and CA3 and CA1 of hippocampus, when compared with VEH+PILO. The PZN+PILO animals had a decreased number (p<0.05) of FJ-C+ cells in CA1 compared with VEH+PILO 15days after SE induction. Taken together, our data suggest that SGLT inhibition with PZN increased the severity of limbic seizures during SE and increased neurodegeneration in hippocampus 24h after SE, suggesting that SGLT1 and SGLT2 could participate in the modulation of earlier stages of epileptogenic processes.
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Affiliation(s)
- Igor S Melo
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Yngrid M O Santos
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Maísa A Costa
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Amanda L D Pacheco
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Nívea K G T Silva
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - L Cardoso-Sousa
- Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia (UFU), Uberlândia, MG, Brazil
| | - U P Pereira
- Institute of Genetics and Biochemistry, Federal University of Uberlandia, MG, Brazil
| | - L R Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlandia, MG, Brazil
| | - Norberto Garcia-Cairasco
- Physiology Department, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcelo Duzzioni
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Daniel L G Gitaí
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil
| | - Cristiane Q Tilelli
- Campus Centro-Oeste Dona Lindu, Federal University of São João del Rei (UFSJ), Divinópolis, MG, Brazil
| | - Robinson Sabino-Silva
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil; Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia (UFU), Uberlândia, MG, Brazil.
| | - Olagide W Castro
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Maceio, AL, Brazil.
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24
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Bastos LM, Macêdo AG, Silva MV, Santiago FM, Ramos ELP, Santos FAA, Pirovani CP, Goulart LR, Mineo TWP, Mineo JR. Toxoplasma gondii-Derived Synthetic Peptides Containing B- and T-Cell Epitopes from GRA2 Protein Are Able to Enhance Mice Survival in a Model of Experimental Toxoplasmosis. Front Cell Infect Microbiol 2016; 6:59. [PMID: 27313992 PMCID: PMC4888622 DOI: 10.3389/fcimb.2016.00059] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 05/19/2016] [Indexed: 11/17/2022] Open
Abstract
Toxoplasmosis is a zoonosis distributed all over the world, which the etiologic agent is an intracellular protozoan parasite, Toxoplasma gondii. This disease may cause abortions and severe diseases in many warm-blood hosts, including humans, particularly the immunocompromised patients. The parasite specialized secretory organelles, as micronemes, rhoptries and dense granules, are critical for the successful parasitism. The dense granule protein 2 (GRA2) is a parasite immunogenic protein secreted during infections and previous studies have been shown that this parasite component is crucial for the formation of intravacuolar membranous nanotubular network (MNN), as well as for secretion into the vacuole and spatial organization of the parasites within the vacuole. In the present study, we produced a monoclonal antibody to GRA2 (C3C5 mAb, isotype IgG2b), mapped the immunodominant epitope of the protein by phage display and built GRA2 synthetic epitopes to evaluate their ability to protect mice in a model of experimental infection. Our results showed that synthetic peptides for B- and T-cell epitopes are able to improve survival of immunized animals. In contrast with non-immunized animals, the immunized mice with both B- and T-cell epitopes had a better balance of cytokines and demonstrated higher levels of IL-10, IL-4 and IL-17 production, though similar levels of TNF-α and IL-6 were observed. The immunization with both B- and T-cell epitopes resulted in survival rate higher than 85% of the challenged mice. Overall, these results demonstrate that immunization with synthetic epitopes for both B- and T-cells from GRA2 protein can be more effective to protect against infection by T. gondii.
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Affiliation(s)
- Luciana M Bastos
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de UberlândiaUberlândia, Brazil; Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de UberlândiaUberlândia, Brazil
| | - Arlindo G Macêdo
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Murilo V Silva
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Fernanda M Santiago
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Eliezer L P Ramos
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Fabiana A A Santos
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Carlos P Pirovani
- Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz Ilhéus, Brazil
| | - Luiz R Goulart
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - Tiago W P Mineo
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
| | - José R Mineo
- Laboratório de Imunoparasitologia "Dr. Mário Endsfeldz Camargo", Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia Uberlândia, Brazil
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Chakraborty S, Nascimento R, Zaini PA, Gouran H, Rao BJ, Goulart LR, Dandekar AM. Sequence/structural analysis of xylem proteome emphasizes pathogenesis-related proteins, chitinases and β-1, 3-glucanases as key players in grapevine defense against Xylella fastidiosa. PeerJ 2016; 4:e2007. [PMID: 27257535 PMCID: PMC4888286 DOI: 10.7717/peerj.2007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/13/2016] [Indexed: 11/20/2022] Open
Abstract
Background. Xylella fastidiosa, the causative agent of various plant diseases including Pierce’s disease in the US, and Citrus Variegated Chlorosis in Brazil, remains a continual source of concern and economic losses, especially since almost all commercial varieties are sensitive to this Gammaproteobacteria. Differential expression of proteins in infected tissue is an established methodology to identify key elements involved in plant defense pathways. Methods. In the current work, we developed a methodology named CHURNER that emphasizes relevant protein functions from proteomic data, based on identification of proteins with similar structures that do not necessarily have sequence homology. Such clustering emphasizes protein functions which have multiple copies that are up/down-regulated, and highlights similar proteins which are differentially regulated. As a working example we present proteomic data enumerating differentially expressed proteins in xylem sap from grapevines that were infected with X. fastidiosa. Results. Analysis of this data by CHURNER highlighted pathogenesis related PR-1 proteins, reinforcing this as the foremost protein function in xylem sap involved in the grapevine defense response to X. fastidiosa. β-1, 3-glucanase, which has both anti-microbial and anti-fungal activities, is also up-regulated. Simultaneously, chitinases are found to be both up and down-regulated by CHURNER, and thus the net gain of this protein function loses its significance in the defense response. Discussion. We demonstrate how structural data can be incorporated in the pipeline of proteomic data analysis prior to making inferences on the importance of individual proteins to plant defense mechanisms. We expect CHURNER to be applicable to any proteomic data set.
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Affiliation(s)
- Sandeep Chakraborty
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
| | - Rafael Nascimento
- Department of Plant Sciences, University of California, Davis (UC Davis), CA, United States of America; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, Uberlândia Minas Gerais, Brazil
| | - Paulo A Zaini
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama , Uberlândia Minas Gerais , Brazil
| | - Hossein Gouran
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
| | - Basuthkar J Rao
- Department of Biological Sciences, Tata Institute of Fundamental Research , Mumbai, Maharashtra , India
| | - Luiz R Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, Uberlândia Minas Gerais, Brazil; Department of Medical Microbiology and Immunology, University of California, Davis (UC Davis), CA, United States of America
| | - Abhaya M Dandekar
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
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Feliciano ND, Ribeiro VS, Gonzaga HT, Santos FA, Fujimura PT, Goulart LR, Costa-Cruz JM. Short epitope-based synthetic peptides for serodiagnosis of human strongyloidiasis. Immunol Lett 2016; 172:89-93. [DOI: 10.1016/j.imlet.2016.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 02/04/2023]
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Nascimento R, Gouran H, Chakraborty S, Gillespie HW, Almeida-Souza HO, Tu A, Rao BJ, Feldstein PA, Bruening G, Goulart LR, Dandekar AM. Corrigendum: The Type II Secreted Lipase/Esterase LesA is a Key Virulence Factor Required for Xylella fastidiosa Pathogenesis in Grapevines. Sci Rep 2016; 6:21575. [PMID: 26914974 PMCID: PMC4767115 DOI: 10.1038/srep21575] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Souza AG, Marangoni K, Fujimura PT, Alves PT, Silva MJ, Bastos VAF, Goulart LR, Goulart VA. 3D Cell-SELEX: Development of RNA aptamers as molecular probes for PC-3 tumor cell line. Exp Cell Res 2016; 341:147-56. [PMID: 26821206 DOI: 10.1016/j.yexcr.2016.01.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 01/22/2016] [Accepted: 01/24/2016] [Indexed: 10/25/2022]
Abstract
Human prostate cancer (PCa) is a highly heterogeneous and multifactorial disease. Current clinical biomarkers are not sufficiently accurate, thus being unable to predict the clinical outcome. Therefore, searching for new biomarkers aiming to improve diagnosis, prognosis and therapy is still required. In this study, we performed 3D Cell-SELEX against PC-3 prostate cancer cell line, a novel strategy to select specific nucleic acid ligands against spheroid cells in 3D cell culture. This original system combines Cell-SELEX, a process that exploits the cellular structure to generate specific ligands, and 3D cell culture, an approach that mimics the tissue microenvironment in vitro. In the first round of 3D Cell-SELEX, a negative selection against RWPE-1, non-tumor cell line, was performed to subtract non-tumor specific aptamers. The supernatant was used in eight additional rounds of selection, which were performed against PC-3 cell line. After nine selection cycles, eight PC-3 specific RNA aptamers were selected and sequenced. The aptamers presented sizes between 20 and 50 nucleotides-long, with low free energy (∆G<-13.6), which contributed for their spontaneous folding and high stability. Furthermore, our results showed the aptamer A4 as a specific ligand to prostate tumor cells, with dissociation constant in the nanomolar scale. Therefore, the novel 3D Cell-SELEX procedure improved the selection of PCa cell-surface ligands and the aptamer A4 has shown potential for the identification of prostate tumor cells, suggesting the application of this molecule in further screening assays for PCa.
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Affiliation(s)
- Aline G Souza
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil.
| | - Karina Marangoni
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil; Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences, University of Campinas, SP, Brazil
| | - Patrícia T Fujimura
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil
| | - Patrícia T Alves
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil
| | - Márcio J Silva
- Center of Molecular Biology and Genetic Engineering, University of Campinas, SP, Brazil
| | - Victor Alexandre F Bastos
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil
| | - Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil; University of California-Davis, Department of Medical Microbiology and Immunology, Davis, CA, USA
| | - Vivian A Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), 38400-902 Uberlândia, MG, Brazil
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Araujo GR, Fujimura PT, Vaz ER, Silva TA, Rodovalho VR, Britto-Madurro AG, Madurro JM, Fonseca JE, Silva CHM, Santos PS, Mourão AF, Canhão H, Goulart LR, Gonçalves J, Ueira-Vieira C. A novel reactive epitope-based antigen targeted by serum autoantibodies in oligoarticular and polyarticular juvenile idiopathic arthritis and development of an electrochemical biosensor. Immunobiology 2016; 221:634-40. [PMID: 26806845 DOI: 10.1016/j.imbio.2016.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 11/24/2015] [Revised: 01/12/2016] [Accepted: 01/12/2016] [Indexed: 12/17/2022]
Abstract
Currently, there are no specific markers for juvenile idiopathic arthritis (JIA) diagnosis, which is based on clinical symptoms and some blood tests for diseases' exclusion. Aiming to select new epitope-based antigens (mimotopes) that could recognize circulating autoantibodies in most JIA forms, we screened a phage displayed random peptide library against IgG antibodies purified from serum of JIA patients. ELISA assay was carried out to confirm immunoreactivity of selected peptides against sera IgG antibodies from JIA patients, healthy children and patients with other autoimmune diseases. The mimotope PRF+1 fused to phage particles was able to efficiently discriminate JIA patients from controls, and for this reason was chosen to be chemically synthesized for validation in a larger sample size. The synthetic peptide was immobilized onto bioelectrodes' surface for antibody detection by electrochemical analyses through differential pulse voltammetry. The PRF+1 synthetic peptide has efficiently discriminated JIA patients from control groups (p<0.0001) with a very good accuracy (AUC>0.84; sensitivity=61%; specificity=91%). The electrochemical platform proved to be fast, low cost and effective in detecting anti-PRF+1 antibodies from JIA patients compared to healthy controls (p=0.0049). Our study describes a novel and promising epitope-based biomarker for JIA diagnosis that can become a useful tool for screening tests, which was successfully incorporated onto an electrochemical biosensor and could be promptly used in field diagnostics.
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Affiliation(s)
- Galber R Araujo
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil.
| | - Patricia T Fujimura
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil
| | - Emília R Vaz
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil
| | - Tamiris A Silva
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil
| | - Vinícius R Rodovalho
- Laboratório de Biomateriais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, Uberlândia 38400-902, Minas Gerais, Brazil
| | - Ana Graci Britto-Madurro
- Laboratório de Biomateriais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, Uberlândia 38400-902, Minas Gerais, Brazil
| | - João M Madurro
- Laboratório de Filmes Poliméricos e Nanotecnologia, Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila 2121, Uberlândia 38408-100, Minas Gerais, Brazil
| | - João E Fonseca
- Unidade de Investigação em Reumatologia, Instituto de Medicina Molecular, Av. Prof. Egas Moniz, Lisboa 1649-028, Portugal
| | - Carlos H M Silva
- Unidade de Reumatologia Pediátrica, Hospital de Clínicas, Faculdade de Medicina da Universidade Federal de Uberlândia, Av. Pará 1720, Bloco 2U, Uberlândia 38400-902, Brazil
| | - Paula S Santos
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil
| | - Ana F Mourão
- Unidade de Investigação em Reumatologia, Instituto de Medicina Molecular, Av. Prof. Egas Moniz, Lisboa 1649-028, Portugal
| | - Helena Canhão
- Unidade de Investigação em Reumatologia, Instituto de Medicina Molecular, Av. Prof. Egas Moniz, Lisboa 1649-028, Portugal
| | - Luiz R Goulart
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil; Department of Medical Microbiology and Immunology, University of California Davis, 1 Shields Avenue, Tupper Hall, Rm. 3146, Davis, CA 95616, USA
| | - João Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, Lisboa 1649-028, Portugal
| | - Carlos Ueira-Vieira
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Av. Amazonas, Bloco 2E, sala 248, Uberlândia 38400-902, Minas Gerais, Brazil
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Nascimento R, Gouran H, Chakraborty S, Gillespie HW, Almeida-Souza HO, Tu A, Rao BJ, Feldstein PA, Bruening G, Goulart LR, Dandekar AM. The Type II Secreted Lipase/Esterase LesA is a Key Virulence Factor Required for Xylella fastidiosa Pathogenesis in Grapevines. Sci Rep 2016; 6:18598. [PMID: 26753904 PMCID: PMC4709584 DOI: 10.1038/srep18598] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 11/03/2015] [Indexed: 11/09/2022] Open
Abstract
Pierce's disease (PD) of grapevines is caused by Xylella fastidiosa (Xf), a xylem-limited gamma-proteobacterium that is responsible for several economically important crop diseases. The occlusion of xylem elements and interference with water transport by Xf and its associated biofilm have been posited as the main cause of PD symptom development; however, Xf virulence mechanisms have not been described. Analysis of the Xf secretome revealed a putative lipase/esterase (LesA) that was abundantly secreted in bacterial culture supernatant and was characterized as a protein ortholog of the cell wall-degrading enzyme LipA of Xanthomonas strains. LesA was secreted by Xf and associated with a biofilm filamentous network. Additional proteomic analysis revealed its abundant presence in outer membrane vesicles (OMVs). Accumulation of LesA in leaf regions associated positively with PD symptoms and inversely with bacterial titer. The lipase/esterase also elicited a hypersensitive response in grapevine. Xf lesA mutants were significantly deficient for virulence when mechanically inoculated into grapevines. We propose that Xf pathogenesis is caused by LesA secretion mediated by OMV cargos and that its release and accumulation in leaf margins leads to early stages of observed PD symptoms.
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Affiliation(s)
- Rafael Nascimento
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902, Uberlândia MG, Brazil
| | - Hossein Gouran
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - Sandeep Chakraborty
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - Hyrum W. Gillespie
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - Hebréia O. Almeida-Souza
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902, Uberlândia MG, Brazil
| | - Aye Tu
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - Basuthkar J. Rao
- Department of Biological Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India
| | - Paul A. Feldstein
- Plant Pathology Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - George Bruening
- Plant Pathology Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
| | - Luiz R. Goulart
- Medical Microbiology and Immunology Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902, Uberlândia MG, Brazil
| | - Abhaya M. Dandekar
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis CA, 95616, USA.
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Chakraborty S, Nascimento R, Zaini PA, Gouran H, Rao BJ, Goulart LR, Dandekar AM. Sequence/structural analysis of xylem proteome emphasizes pathogenesis-related proteins, chitinases and β-1, 3-glucanases as key players in grapevine defense against Xylella fastidiosa. PeerJ 2016. [PMID: 27257535 DOI: 10.7717/peerj2007] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Background. Xylella fastidiosa, the causative agent of various plant diseases including Pierce's disease in the US, and Citrus Variegated Chlorosis in Brazil, remains a continual source of concern and economic losses, especially since almost all commercial varieties are sensitive to this Gammaproteobacteria. Differential expression of proteins in infected tissue is an established methodology to identify key elements involved in plant defense pathways. Methods. In the current work, we developed a methodology named CHURNER that emphasizes relevant protein functions from proteomic data, based on identification of proteins with similar structures that do not necessarily have sequence homology. Such clustering emphasizes protein functions which have multiple copies that are up/down-regulated, and highlights similar proteins which are differentially regulated. As a working example we present proteomic data enumerating differentially expressed proteins in xylem sap from grapevines that were infected with X. fastidiosa. Results. Analysis of this data by CHURNER highlighted pathogenesis related PR-1 proteins, reinforcing this as the foremost protein function in xylem sap involved in the grapevine defense response to X. fastidiosa. β-1, 3-glucanase, which has both anti-microbial and anti-fungal activities, is also up-regulated. Simultaneously, chitinases are found to be both up and down-regulated by CHURNER, and thus the net gain of this protein function loses its significance in the defense response. Discussion. We demonstrate how structural data can be incorporated in the pipeline of proteomic data analysis prior to making inferences on the importance of individual proteins to plant defense mechanisms. We expect CHURNER to be applicable to any proteomic data set.
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Affiliation(s)
- Sandeep Chakraborty
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
| | - Rafael Nascimento
- Department of Plant Sciences, University of California, Davis (UC Davis), CA, United States of America; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, Uberlândia Minas Gerais, Brazil
| | - Paulo A Zaini
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama , Uberlândia Minas Gerais , Brazil
| | - Hossein Gouran
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
| | - Basuthkar J Rao
- Department of Biological Sciences, Tata Institute of Fundamental Research , Mumbai, Maharashtra , India
| | - Luiz R Goulart
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, Uberlândia Minas Gerais, Brazil; Department of Medical Microbiology and Immunology, University of California, Davis (UC Davis), CA, United States of America
| | - Abhaya M Dandekar
- Department of Plant Sciences, University of California, Davis (UC Davis) , CA , United States of America
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Khadge S, Banu S, Bobosha K, van der Ploeg-van Schip JJ, Goulart IM, Thapa P, Kunwar CB, van Meijgaarden KE, van den Eeden SJF, Wilson L, Kabir S, Dey H, Goulart LR, Lobato J, Carvalho W, Bekele Y, Franken KLMC, Aseffa A, Spencer JS, Oskam L, Otttenhoff THM, Hagge DA, Geluk A. Longitudinal immune profiles in type 1 leprosy reactions in Bangladesh, Brazil, Ethiopia and Nepal. BMC Infect Dis 2015; 15:477. [PMID: 26510990 PMCID: PMC4625471 DOI: 10.1186/s12879-015-1128-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 09/18/2015] [Indexed: 12/30/2022] Open
Abstract
Background Acute inflammatory reactions are a frequently occurring, tissue destructing phenomenon in infectious- as well as autoimmune diseases, providing clinical challenges for early diagnosis. In leprosy, an infectious disease initiated by Mycobacterium leprae (M. leprae), these reactions represent the major cause of permanent neuropathy. However, laboratory tests for early diagnosis of reactional episodes which would significantly contribute to prevention of tissue damage are not yet available. Although classical diagnostics involve a variety of tests, current research utilizes limited approaches for biomarker identification. In this study, we therefore studied leprosy as a model to identify biomarkers specific for inflammatory reactional episodes. Methods To identify host biomarker profiles associated with early onset of type 1 leprosy reactions, prospective cohorts including leprosy patients with and without reactions were recruited in Bangladesh, Brazil, Ethiopia and Nepal. The presence of multiple cyto-/chemokines induced by M. leprae antigen stimulation of peripheral blood mononuclear cells as well as the levels of antibodies directed against M. leprae-specific antigens in sera, were measured longitudinally in patients. Results At all sites, longitudinal analyses showed that IFN-γ-, IP-10-, IL-17- and VEGF-production by M. leprae (antigen)-stimulated PBMC peaked at diagnosis of type 1 reactions, compared to when reactions were absent. In contrast, IL-10 production decreased during type 1 reaction while increasing after treatment. Thus, ratios of these pro-inflammatory cytokines versus IL-10 provide useful tools for early diagnosing type 1 reactions and evaluating treatment. Of further importance for rapid diagnosis, circulating IP-10 in sera were significantly increased during type 1 reactions. On the other hand, humoral immunity, characterized by M. leprae-specific antibody detection, did not identify onset of type 1 reactions, but allowed treatment monitoring instead. Conclusions This study identifies immune-profiles as promising host biomarkers for detecting intra-individual changes during acute inflammation in leprosy, also providing an approach for other chronic (infectious) diseases to help early diagnose these episodes and contribute to timely treatment and prevention of tissue damage. Electronic supplementary material The online version of this article (doi:10.1186/s12879-015-1128-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Saraswoti Khadge
- Mycobacterial Research Laboratories, Anandaban Hospital, Kathmandu, Nepal.
| | - Sayera Banu
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh.
| | - Kidist Bobosha
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands. .,Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
| | | | - Isabela M Goulart
- National Reference Center for Sanitary Dermatology and Leprosy, Faculty of Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - Pratibha Thapa
- Mycobacterial Research Laboratories, Anandaban Hospital, Kathmandu, Nepal.
| | - Chhatra B Kunwar
- Mycobacterial Research Laboratories, Anandaban Hospital, Kathmandu, Nepal.
| | - Krista E van Meijgaarden
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Susan J F van den Eeden
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Louis Wilson
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh.
| | - Senjuti Kabir
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh.
| | - Hymonti Dey
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh.
| | - Luiz R Goulart
- National Reference Center for Sanitary Dermatology and Leprosy, Faculty of Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - Janaina Lobato
- National Reference Center for Sanitary Dermatology and Leprosy, Faculty of Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - Washington Carvalho
- National Reference Center for Sanitary Dermatology and Leprosy, Faculty of Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - Yonas Bekele
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
| | - Kees L M C Franken
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Abraham Aseffa
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
| | - John S Spencer
- Dept. of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, USA.
| | - Linda Oskam
- National Reference Center for Sanitary Dermatology and Leprosy, Faculty of Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - Tom H M Otttenhoff
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Deanna A Hagge
- Mycobacterial Research Laboratories, Anandaban Hospital, Kathmandu, Nepal.
| | - Annemieke Geluk
- Dept. of Infectious Diseases, Leiden University Medical Center (LUMC), PO Box 9600, 2300 RC, Leiden, The Netherlands.
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Paiva Maia YC, Araújo TG, Franco DL, Capparelli FE, Ribeiro VS, Fujimura PT, Calábria L, Paiva CE, Santos DW, Franco JA, Madurro JM, Brito-Madurro AG, Freitas RN, Goulart LR. A novel breast cancer screening platform: An epitope-based biomarker coupled to electrochemical sensor. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.28_suppl.9] [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] [Indexed: 11/20/2022] Open
Abstract
9 Background: The subtractive proteomic selection technology called Phage Display (PD) has been extensively used by our group in the discovery of high affinity ligands to target tissues and molecules. We have selected specific ligands against IgG purified from BC tissues, which was successfully coupled to an electrochemical sensor to detect the tumor-specific immune response. Methods: After PD selections, all immunoreactive peptide ligands were further characterized by DNA sequencing, in vitro translated and submitted to bioinformatic analyses. Further validations were performed by ELISA. We then used one synthetic peptide (SF4) for the construction of an immunosensor, which was applied to patients and control samples for final validation. Electrochemical impedance spectroscopy (EIS) was performed. Results: We have selected the F4 peptide for final validation and sensor construction due to its capability of detecting IgG in the peripheral blood and the excellent ELISA ratio BC:BBD, discriminating more than 70% of BC patients. The synthetic peptide reached a good precision in BC diagnosis (68%), but surprisingly, the selected F4 clone presented the highest sensitivity and specificity, (77.8% and 85.7%, respectively), suggesting that it can be used as a diagnostic reagent for early BC screening prior to imaging and pathological analyses. The electrochemical sensor that was built with the epitope-based peptide discriminated all IgG from BC and healthy individuals. Results with the EIS sensor demonstrated that the presence of (SF4) peptide IgG generated higher resistivity (-Z ') compared to the system containing only the peptide or the control sera. This is justified by the fact that with the immobilized biological peptide layer was correctly conjugated with the IgG forming an antigen: antibody complex that led to an increased resistance to the charge transfer system, producing a decrease in electron transfer between the iron-coupled / ferricyanide redox and the electrode surface. Conclusions: An electrochemical sensor using an epitope-based biomarker was developed, which allows for the first time BC screening using a very simple platform that could be an important auxiliary tool to mammography imaging.
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Affiliation(s)
| | | | | | | | | | | | | | - Carlos Eduardo Paiva
- Division of Breast & Gynecology, Department of Clinical Oncology, Barretos, Brazil
| | | | | | | | | | | | - Luiz R. Goulart
- Federal University of Uberlândia, Laboratory of Nanobiotechnology, Uberlândia, Brazil
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Vaz ER, Fujimura PT, Araujo GR, da Silva CAT, Silva RL, Cunha TM, Lopes-Ferreira M, Lima C, Ferreira MJ, Cunha-Junior JP, Taketomi EA, Goulart LR, Ueira-Vieira C. A Short Peptide That Mimics the Binding Domain of TGF-β1 Presents Potent Anti-Inflammatory Activity. PLoS One 2015; 10:e0136116. [PMID: 26312490 PMCID: PMC4552549 DOI: 10.1371/journal.pone.0136116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 07/29/2015] [Indexed: 12/30/2022] Open
Abstract
The transforming growth factor beta 1 (TGF-β1) is a pleiotropic cytokine with multiple roles in development, wound healing, and immune regulation. TGF-β1-mediated immune dysfunction may lead to pathological conditions, such as inflammation. Chronic inflammatory process is characterized by a continuous release of pro-inflammatory cytokines, and the inhibition or the blockage of these cytokines signaling pathways are considered a target treatment. In this context, despite the high numbers of TGF-β-targeted pathways, the inducible regulatory T cells (iTreg) to control inflammation seems to be a promising approach. Our aim was to develop novel peptides through phage display (PhD) technology that could mimic TGF-β1 function with higher potency. Specific mimetic peptides were obtained through a PhD subtraction strategy from whole cell binding using TGF-β1 recombinant as a competitor during elution step. We have selected a peptide that seems to play an important role on cellular differentiation and modulation of TNF-α and IL-10 cytokines. The synthetic pm26TGF-β1 peptide tested in PBMC significantly down-modulated TNF-α and up-regulated IL-10 responses, leading to regulatory T cells (Treg) phenotype differentiation. Furthermore, the synthetic peptide was able to decrease leukocytes rolling in BALB/C mice and neutrophils migration during inflammatory process in C57BL/6 mice. These data suggest that this peptide may be useful for the treatment of inflammatory diseases, especially because it displays potent anti-inflammatory properties and do not exhibit neutrophils’ chemoattraction.
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Affiliation(s)
- Emília R. Vaz
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- * E-mail:
| | - Patrícia T. Fujimura
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Galber R. Araujo
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Carlos A. T. da Silva
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Rangel L. Silva
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thiago M. Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mônica Lopes-Ferreira
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Carla Lima
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Márcio J. Ferreira
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Jair P. Cunha-Junior
- Laboratory of Immunotechnology and Immunochemistry, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Ernesto A. Taketomi
- Laboratory of Immunotechnology and Immunochemistry, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, United States of America
| | - Carlos Ueira-Vieira
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
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Marangoni K, Neves AF, Rocha RM, Faria PR, Alves PT, Souza AG, Fujimura PT, Santos FAA, Araújo TG, Ward LS, Goulart LR. Prostate-specific RNA aptamer: promising nucleic acid antibody-like cancer detection. Sci Rep 2015; 5:12090. [PMID: 26174796 PMCID: PMC4502603 DOI: 10.1038/srep12090] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 06/18/2015] [Indexed: 12/04/2022] Open
Abstract
We described the selection of a novel nucleic acid antibody-like prostate cancer (PCa) that specifically binds to the single-stranded DNA molecule from a 277-nt fragment that may have been partially paired and bound to the PCA3 RNA conformational structure. PCA3-277 aptamer ligands were obtained, and the best binding molecule, named CG3, was synthesized for validation. Aiming to prove its diagnostic utility, we used an apta-qPCR assay with CG3-aptamer conjugated to magnetic beads to capture PCA3 transcripts, which were amplified 97-fold and 7-fold higher than conventional qPCR in blood and tissue, respectively. Histopathologic analysis of 161 prostate biopsies arranged in a TMA and marked with biotin-labeled CG3-aptamer showed moderate staining in both cytoplasm and nucleus of PCa samples; in contrast, benign prostatic hyperplasia (BPH) samples presented strong nuclear staining (78% of the cases). No staining was observed in stromal cells. In addition, using an apta-qPCR, we demonstrated that CG3-aptamer specifically recognizes the conformational PCA3-277 molecule and at least three other transcript variants, indicating that long non-coding RNA (lncRNA) is processed after transcription. We suggest that CG3-aptamer may be a useful PCa diagnostic tool. In addition, this molecule may be used in drug design and drug delivery for PCa therapy.
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Affiliation(s)
- Karina Marangoni
- 1] Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences, State University of Campinas, SP, Brazil [2] Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Adriana F Neves
- Laboratory of Molecular Biology, Institute of Biotechnology, Federal University of Goiás, Catalão/GO, Brazil
| | | | - Paulo R Faria
- Laboratory of Histology, Institute of Biomedical Sciences, Federal University of Uberlândia, MG, Brazil
| | - Patrícia T Alves
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Aline G Souza
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Patrícia T Fujimura
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Fabiana A A Santos
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Thaise G Araújo
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil
| | - Laura S Ward
- Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences, State University of Campinas, SP, Brazil
| | - Luiz R Goulart
- 1] Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlândia, MG, Brazil [2] University of California-Davis, Dept. of Medical Microbiology and Immunology, Davis/CA, USA
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Araujo GR, Fonseca JE, Fujimura PT, Cunha-Junior JP, Silva CHM, Mourão AF, Canhão H, Goulart LR, Gonçalves J, Ueira-Vieira C. Anti-type II collagen antibodies detection and avidity in patients with oligoarticular and polyarticular forms of juvenile idiopathic arthritis. Immunol Lett 2015; 165:20-5. [PMID: 25800643 DOI: 10.1016/j.imlet.2015.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 02/14/2015] [Accepted: 03/11/2015] [Indexed: 11/28/2022]
Abstract
Juvenile idiopathic arthritis (JIA) refers to a heterogeneous group of illnesses that have in common the occurrence of chronic joint inflammation in children younger than 16 years of age. The diagnosis is made only on clinical assessment. The identification of antibody markers could improve the early diagnosis, optimizing the clinical management of patients. Type II collagen is one potential autoantigen that has been implicated in the process of arthritis development. The aims of our study were to investigate the occurrence of anti-type II collagen antibodies and also to determine the avidity of the antibody-antigen binding. Ninety-six patients with oligoarticular or polyarticular JIA, 13 patients with ankylosing spondylitis (AS) and 61 healthy controls (HC) were tested for anti-type II collagen antibodies by ELISA and avidity ELISA. Sensitivity and specificity were determined by the receiver operating characteristic (ROC) curve analysis. Forty-two JIA patients (44%) were positive for antibodies against type II collagen. Its detection was significantly higher in JIA patients than in AS patients (p=0.006) and HCs (p<0.0001). Furthermore, anti-type II collagen antibody detection was significantly more frequent in patients with JIA of ≤6 months duration (p=0.0007). Antibodies displaying high avidity to type II collagen were associated with disease activity (p=0.004). This study demonstrates that antibodies against type II collagen are present in the serum of patients with oligoarticular and polyarticular JIA, being its presence more prevalent in patients with early disease. It also demonstrates that JIA patients with active disease present antibodies with high avidity against type II collagen.
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Affiliation(s)
- Galber R Araujo
- Laboratory of Nanobiotecnology, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil; iMed - Instituto de Medicina, Faculdade de Farmácia da Universidade de Lisboa, Lisbon, Portugal.
| | - João E Fonseca
- Rheumatology Research Unit, Instituto de Medicina Molecular, Lisbon, Portugal; Rheumatology Department, Lisbon Academic Medical Center, Lisbon, Portugal
| | - Patricia T Fujimura
- Laboratory of Nanobiotecnology, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Jair P Cunha-Junior
- Laboratory of Immunotecnology and Imunochemistry, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Carlos H M Silva
- Pediatric Rheumatology Department, Hospital de Clínicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Ana F Mourão
- Rheumatology Research Unit, Instituto de Medicina Molecular, Lisbon, Portugal; Rheumatology Department, Hospital Egas Moniz, Lisbon, Portugal
| | - Helena Canhão
- Rheumatology Research Unit, Instituto de Medicina Molecular, Lisbon, Portugal; Rheumatology Department, Lisbon Academic Medical Center, Lisbon, Portugal
| | - Luiz R Goulart
- Laboratory of Nanobiotecnology, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil; Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, USA
| | - João Gonçalves
- iMed - Instituto de Medicina, Faculdade de Farmácia da Universidade de Lisboa, Lisbon, Portugal; IMM - Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Carlos Ueira-Vieira
- Laboratory of Nanobiotecnology, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil
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Araujo TG, Marangoni K, Rocha RM, Maia YCP, Araujo GR, Alcântar TM, Alves PT, Calábria L, Neves AF, Soares FA, Goulart LR. Dynamic dialog between cytokeratin 18 and annexin A1 in breast cancer: a transcriptional disequilibrium. Acta Histochem 2014; 116:1178-84. [PMID: 25028131 DOI: 10.1016/j.acthis.2014.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/19/2014] [Accepted: 06/23/2014] [Indexed: 11/30/2022]
Abstract
Cytokeratins (CKs) constitute the cytoskeletal network and are regulated by post-translational modifications, acting not only as a mechanical support, but also in cell signaling and regulatory processes. Signaling is mediated by CK-associated proteins, such as Annexin A1 (ANXA1), a ligand of the CK18/CK8 complex. ANXA1 has a pivotal role in cellular and immunological responses, and together with CK18 have been implicated in several processes related to malignant transformation in breast cancer (BC). Our aim was to demonstrate how their interaction might be linked to BC development. We investigated transcript levels, protein expression and distribution for both targets in breast tissues of 92 patients (42 BCs and 50 benign diseases) using qPCR and immunohistochemistry, respectively. ANXA1 and CK18 mRNAs were inversely correlated, and their ratio in each TNM stage significantly differentiated BC from benign diseases (OR=5.62). These differences did not mirror tissue protein levels, but a significant dichotomous protein distribution in tumor tissues was observed, differing from the expected co-localization observed during cell homeostasis. The disequilibrium of transcriptional levels between ANXA1/CK18 and alterations in their tissue distribution are present either in initial events or tumor progression, which suggest a critical event in BC. The broken dialog between ANXA1 and CK18 in normal breast tissues may play a critical role in BC development, and together may be used as combined targets for BC diagnostics.
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Affiliation(s)
- Thaise G Araujo
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil.
| | - Karina Marangoni
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | | | - Yara C P Maia
- School of Medicine, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Galber R Araujo
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Tânia M Alcântar
- Department of Pathology, Clinical Hospital of Uberlandia, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Patrícia T Alves
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Luanda Calábria
- Obstetrics Division, Internal Medicine, University Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Adriana F Neves
- Laboratory of Genetics and Biotechnology, Federal University of Goias, Catalao, GO, Brazil
| | | | - Luiz R Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil; Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, USA
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Carneiro AP, Reis CF, Morari EC, Maia YCP, Nascimento R, Bonatto JMC, de Souza MA, Goulart LR, Ward LS. A putative OTU domain-containing protein 1 deubiquitinating enzyme is differentially expressed in thyroid cancer and identifies less-aggressive tumours. Br J Cancer 2014; 111:551-8. [PMID: 24937664 PMCID: PMC4119988 DOI: 10.1038/bjc.2014.331] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 03/20/2014] [Accepted: 05/15/2014] [Indexed: 12/22/2022] Open
Abstract
Background: This study aimed to identify novel biomarkers for thyroid carcinoma diagnosis and prognosis. Methods: We have constructed a human single-chain variable fragment (scFv) antibody library that was selected against tumour thyroid cells using the BRASIL method (biopanning and rapid analysis of selective interactive ligands) and phage display technology. Results: One highly reactive clone, scFv-C1, with specific binding to papillary thyroid tumour proteins was confirmed by ELISA, which was further tested against a tissue microarray that comprised of 229 thyroid tissues, including: 110 carcinomas (38 papillary thyroid carcinomas (PTCs), 42 follicular carcinomas, 30 follicular variants of PTC), 18 normal thyroid tissues, 49 nodular goitres (NG) and 52 follicular adenomas. The scFv-C1 was able to distinguish carcinomas from benign lesions (P=0.0001) and reacted preferentially against T1 and T2 tumour stages (P=0.0108). We have further identified an OTU domain-containing protein 1, DUBA-7 deubiquitinating enzyme as the scFv-binding antigen using two-dimensional polyacrylamide gel electrophoresis and mass spectrometry. Conclusions: The strategy of screening and identifying a cell-surface-binding antibody against thyroid tissues was highly effective and resulted in a useful biomarker that recognises malignancy among thyroid nodules and may help identify lower-risk cases that can benefit from less-aggressive management.
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Affiliation(s)
- A P Carneiro
- Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences (FCM), University of Campinas (Unicamp), Campinas, SP, Brazil
| | - C F Reis
- Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences (FCM), University of Campinas (Unicamp), Campinas, SP, Brazil
| | - E C Morari
- Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences (FCM), University of Campinas (Unicamp), Campinas, SP, Brazil
| | - Y C P Maia
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry (Ingeb), Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - R Nascimento
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry (Ingeb), Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - J M C Bonatto
- Department of Biochemistry, Chemistry Institute, University of São Paulo, São Paulo, Brazil
| | - M A de Souza
- Laboratory of Molecular Biology, Federal University of Uberlandia, Institute of Biomedical Sciences, Uberlandia, MG, Brazil
| | - L R Goulart
- 1] Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry (Ingeb), Federal University of Uberlandia, Uberlandia, MG, Brazil [2] Department of Medical Microbiology and Immunology, University of California-Davis, Davis, CA, USA
| | - L S Ward
- Laboratory of Cancer Molecular Genetics, Faculty of Medical Sciences (FCM), University of Campinas (Unicamp), Campinas, SP, Brazil
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Araújo TG, Paiva CE, Rocha RM, Maia YCP, Sena AAS, Ueira-Vieira C, Carneiro AP, Almeida JF, de Faria PR, Santos DW, Calábria L, Alcântara TM, Soares FA, Goulart LR. A novel highly reactive Fab antibody for breast cancer tissue diagnostics and staging also discriminates a subset of good prognostic triple-negative breast cancers. Cancer Lett 2013; 343:275-85. [PMID: 24099914 DOI: 10.1016/j.canlet.2013.09.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 09/26/2013] [Accepted: 09/26/2013] [Indexed: 01/01/2023]
Abstract
The discovery of novel markers for breast cancer (BC) has been recently relied on antibody combinatorial libraries and selection through phage display. We constructed a recombinant Fab library, and after selections against BC tissues, the FabC4 clone was thoroughly investigated by immunohistochemistry in 232 patients with long-term follow-up. The FabC4 ligand was determined by mass spectrometry. The FabC4 expression was associated with younger age, lack of progesterone receptor, higher histological grades and non-luminal subtypes, and it also identified a subset of good prognostic triple-negative BCs, possibly targeting a conformational epitope of Cytokeratin-10 (CK10). This new CK10-epitope specific antibody may open new possibilities in diagnostic and therapeutic strategies.
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Affiliation(s)
- Thaise G Araújo
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Carlos E Paiva
- Division of Breast and Gynecological Tumors, Department of Clinical Oncology, Barretos Cancer Hospital, Barretos, SP, Brazil
| | | | - Yara C P Maia
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Angela A S Sena
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Carlos Ueira-Vieira
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Ana Paula Carneiro
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Juliana F Almeida
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil
| | - Paulo R de Faria
- Federal University of Uberlandia, Biomedical Sciences Institute, Uberlandia, MG, Brazil
| | - Donizeti W Santos
- Obstetric Division, Internal Medicine, University Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Luanda Calábria
- Obstetric Division, Internal Medicine, University Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Tânia M Alcântara
- Pathology Division, Internal Medicine, University Hospital, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | | | - Luiz R Goulart
- Federal University of Uberlandia, Institute of Genetics and Biochemistry, Nanobiotechnology Laboratory, Campus Umuarama, Bloco 2E, Sala 248, 38400-902 Uberlandia, MG, Brazil; University of California Davis, Dept. of Medical Microbiology and Immunology, Davis, CA, USA.
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Neves AF, Dias-Oliveira JDD, Araújo TG, Marangoni K, Goulart LR. Prostate cancer antigen 3 (PCA3) RNA detection in blood and tissue samples for prostate cancer diagnosis. Clin Chem Lab Med 2013; 51:881-7. [PMID: 23241599 DOI: 10.1515/cclm-2012-0392] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 11/08/2012] [Indexed: 11/15/2022]
Abstract
BACKGROUND The non-coding prostate cancer antigen 3 (PCA3) RNA is currently the most specific biomarker for prostate cancer (PCa) diagnosis. Although its clinical value has been validated in a urine assay after intensive prostatic massage, few studies have been conducted to establish its diagnostic value in the peripheral blood (PBL). The aim of the present study was to examine the PCA3 expression in blood as a diagnostic tool, and to provide an additional strategy to improve PCa diagnosis. METHODS PCA3 transcripts were detected by RT-PCR in PBL and prostatic tissues from patients. PBL sampling also included a group of young healthy volunteers. The relationship between the PCA3 RNA detection and clinical characteristics was analyzed. RESULTS PCA3 detection in blood presented 94% specificity and 32% sensitivity, and its combined detection in tissues significantly improved diagnostic parameters. However, PCA3 RNA detection in blood was also associated with PSA levels ≥10 ng/mL, and their combination provided a sensitivity of 60% and specificity of 93%. CONCLUSIONS Detection of the PCA3 RNA in patients' blood is an efficient tool for PCa diagnosis because it allows a routine collection procedure, which is also supported by the ongoing screening marker, prostate-specific antigen (PSA). We propose its combined use with PSA levels ≥10 ng/mL, which improves accuracy, and prevents overdiagnosis and overtreatment.
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Affiliation(s)
- Adriana F Neves
- Molecular Genetics and Biotechnology Laboratory, Department of Biological Sciences, Federal University of Goias, 75.704 – 020, Catalao, GO, Brazil.
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Reis EM, Araujo S, Lobato J, Neves AF, Costa AV, Gonçalves MA, Goulart LR, Goulart IMB. Mycobacterium leprae DNA in peripheral blood may indicate a bacilli migration route and high-risk for leprosy onset. Clin Microbiol Infect 2013; 20:447-52. [PMID: 24033793 DOI: 10.1111/1469-0691.12349] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/20/2013] [Accepted: 07/24/2013] [Indexed: 11/28/2022]
Abstract
Leprosy epidemiological studies have been restricted to Mycobacterium leprae DNA detection in nasal and oral mucosa samples with scarce literature on peripheral blood. We present the largest study applying quantitative real-time PCR (qPCR) for the detection of M. leprae DNA in peripheral blood samples of 200 untreated leprosy patients and 826 household contacts, with results associated with clinical and laboratory parameters. To detect M. leprae DNA a TaqMan qPCR assay targeting the M. leprae ML0024 genomic region was performed. The ML0024 qPCR in blood samples detected the presence of bacillus DNA in 22.0% (44/200) of the leprosy patients: 23.2% (16/69) in paucibacillary (PB), and 21.4% (28/131) in multibacillary (MB) patients. Overall positivity among contacts was 1.2% (10/826), with similar percentages regardless of whether the index case was PB or MB. After a follow-up period of 7 years, 26 contacts have developed leprosy. Comparing the results of healthy contacts with those that become ill, ML0024 qPCR positivity at the time of diagnosis of their index case represented an impressive 14.78-fold greater risk for leprosy onset (95% CI 3.6-60.8; p <0.0001). In brief, contacts with positive PCR in blood at diagnosis of index cases are at higher risk of later leprosy onset and this marker might be combined with other prognostic markers for management of contacts, which requires further studies.
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Affiliation(s)
- E M Reis
- National Reference Centre for Sanitary Dermatology and Leprosy, Clinic Hospital, Federal University of Uberlandia, Uberlandia; Post-Graduation Programme in Health Sciences, School of Medicine, Federal University of Uberlandia, Uberlandia
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Gatti RR, Santos PS, Sena AAS, Marangoni K, Araújo MA, Goulart LR. The interaction of AGT and NOS3 gene polymorphisms with conventional risk factors increases predisposition to hypertension. J Renin Angiotensin Aldosterone Syst 2012; 14:360-8. [PMID: 22791701 DOI: 10.1177/1470320312452027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Renin-angiotensin and kallikrein-kinin systems are interconnected, regulating blood pressure homeostasis. We have demonstrated the interactions among polymorphisms of the angiotensinogen (AGT) and endothelial nitric oxide synthase (NOS3) genes and conventional risk factors affecting the hypertension occurrence. Individuals were recruited (n=192) and classified into hypertensive (HG; n=140) and normotensive (NG; n=52) groups. The genotypic distribution of the Met235Thr (AGT) and Glu298Asp (NOS3) polymorphisms demonstrated that both are independent risk factors of hypertension (p=0.02 and p=0.008, respectively). The concomitant presence of these polymorphisms in the HG group was significantly different (p=0.001) from the NG. Both gene polymorphisms presented an additive effect for the unfavourable alleles T and A, respectively, and 95% of the double mutant homozygotes were classified into the HG. Specific interactions among certain conventional factors and the presence of at least one unfavourable allele presented significant odds towards hypertension. Blood pressure homeostasis was affected by genetic polymorphisms conditioned by the T and A alleles of the AGT and NOS3 genes, respectively, which acted independently. However, their interaction with smoking, sedentariness, age and total cholesterol may have increased the predisposition to hypertension, which may explain most of the hypertension cases.
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Affiliation(s)
- Renata R Gatti
- 1Institute of Genetics and Biochemistry, Federal University of Uberlândia, Brazil
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Dandekar AM, Gouran H, Ibáñez AM, Uratsu SL, Agüero CB, McFarland S, Borhani Y, Feldstein PA, Bruening G, Nascimento R, Goulart LR, Pardington PE, Chaudhary A, Norvell M, Civerolo E, Gupta G. An engineered innate immune defense protects grapevines from Pierce disease. Proc Natl Acad Sci U S A 2012; 109:3721-5. [PMID: 22355130 PMCID: PMC3309795 DOI: 10.1073/pnas.1116027109] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We postulated that a synergistic combination of two innate immune functions, pathogen surface recognition and lysis, in a protein chimera would lead to a robust class of engineered antimicrobial therapeutics for protection against pathogens. In support of our hypothesis, we have engineered such a chimera to protect against the gram-negative Xylella fastidiosa (Xf), which causes diseases in multiple plants of economic importance. Here we report the design and delivery of this chimera to target the Xf subspecies fastidiosa (Xff), which causes Pierce disease in grapevines and poses a great threat to the wine-growing regions of California. One domain of this chimera is an elastase that recognizes and cleaves MopB, a conserved outer membrane protein of Xff. The second domain is a lytic peptide, cecropin B, which targets conserved lipid moieties and creates pores in the Xff outer membrane. A flexible linker joins the recognition and lysis domains, thereby ensuring correct folding of the individual domains and synergistic combination of their functions. The chimera transgene is fused with an amino-terminal signal sequence to facilitate delivery of the chimera to the plant xylem, the site of Xff colonization. We demonstrate that the protein chimera expressed in the xylem is able to directly target Xff, suppress its growth, and significantly decrease the leaf scorching and xylem clogging commonly associated with Pierce disease in grapevines. We believe that similar strategies involving protein chimeras can be developed to protect against many diseases caused by human and plant pathogens.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Luiz R. Goulart
- Medical Microbiology and Immunology Department, University of California, Davis, CA 95616
| | - Paige E. Pardington
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545; and
| | - Anu Chaudhary
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545; and
| | - Meghan Norvell
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545; and
| | - Edwin Civerolo
- US Department of Agriculture, Agricultural Research Service, San Joaquin Valley Agricultural Science Center, Parlier, CA 93648
| | - Goutam Gupta
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545; and
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da Silva Martinez T, Nahas AA, Figueira MMNR, Costa AV, Gonçalves MA, Goulart LR, Goulart IMB. Oral lesion in leprosy: borderline tuberculoid diagnosis based on detection of Mycobacterium leprae DNA by qPCR. Acta Derm Venereol 2011; 91:704-7. [PMID: 21879249 DOI: 10.2340/00015555-1175] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oral lesions are rarely reported in paucibacillary forms of leprosy. We report here a case with an erythematous hyposensitive lesion in the palate and no skin lesions. In addition to routine tests, biopsies of the lesion in the palate and of clinically normal surrounding areas were performed and subjected to real-time PCR for detection of Mycobacterium leprae DNA. The biopsy of the oral lesion was positive for bacilli DNA, followed by positive serum anti-PGL-1 and Mitsuda test, but with negative histopathology. The patient was diagnosed with a borderline tuberculoid form. After multidrug therapy the lesion had significantly regressed and the bacilli DNA detection in the former lesion was negative. The bacilli DNA detection in an oral lesion by real-time PCR not only improved leprosy diagnosis, but also helped in the classification of clinical form, and in the establishment of the appropriate therapeutic regime.
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Affiliation(s)
- Talita da Silva Martinez
- National Reference Center in Sanitary Dermatology and Leprosy, Hospital das Clinicas, Av. Aspirante Mega, 77, Bairro Jaraguá, 38413-018 Uberlândia/MG, Brazil.
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Tilli TM, Thuler LC, Matos AR, Coutinho-Camillo CM, Soares FA, da Silva EA, Neves AF, Goulart LR, Gimba ER. Expression analysis of osteopontin mRNA splice variants in prostate cancer and benign prostatic hyperplasia. Exp Mol Pathol 2011; 92:13-9. [PMID: 21963599 DOI: 10.1016/j.yexmp.2011.09.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 09/13/2011] [Indexed: 01/19/2023]
Abstract
Osteopontin splicing isoforms (OPN-SI) present differential expression patterns and specific tumor roles. Our aims were to characterize OPN-SI expression in prostate cancer (PCa) and benign prostate hyperplasia (BPH) tissues, besides evaluating their potential as biomarkers for PCa diagnosis and prognostic implications. Prostatic tissue specimens were obtained from 40 PCa and 30 benign prostate hyperplasia (BPH) patients. Quantitative real time PCR (qRT-PCR) was used to measure OPN-SI mRNA expression. Immunohistochemical analysis was performed using an anti-OPNc polyclonal antibody. Biostatistical analyses evaluated the association of OPN-SI and total Prostate Specific Antigen (PSA) serum levels with clinical and pathological data. PCa tissue samples presented significantly higher levels of OPNa, OPNb and OPNc transcripts (p<0.01) than in BPH specimens. OPN-SI mRNA expression were positively correlated with Gleason Score (p<0.01). ROC curves and logistic regression analyses demonstrated that OPN-SI and PSA were able to distinguish PCa from BPH patients (p<0.01). The OPNc isoform was the most upregulated variant and the best marker to distinguish patients' groups, presenting sensitivity and specificity of 90% and 100%, respectively. Immunohistochemistry analysis also demonstrated OPNc upregulation in PCa samples as compared to BPH tissues. OPNcprotein was also strongly stained PCa tissues presenting High Gleason Score. Multivariate analysis indicated that OPNc expression levels above the cut-off value presented a chance 4-fold higher for PCa occurrence. We conclude that OPN-SI were overexpressed in PCa tissues, strongly associated with PCa occurrence and with tumor cell differentiation. Our results suggest OPNc splicing isoform as an important biomarker contributing to improve PCa diagnosis and prognosis, besides providing insights into early steps of PCa carcinogenesis.
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Affiliation(s)
- T M Tilli
- Programa de Medicina Experimental, Coordenação de Pesquisa-Instituto Nacional de Câncer, Programa de Pós Graduação Stricto Sensu em Oncologia do INCa, Rio de Janeiro-RJ, Brazil
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Manhani MN, Ribeiro VS, Cardoso R, Ueira-Vieira C, Goulart LR, Costa-Cruz JM. Specific phage-displayed peptides discriminate different forms of neurocysticercosis by antibody detection in the serum samples. Parasite Immunol 2011; 33:322-9. [PMID: 21323932 DOI: 10.1111/j.1365-3024.2011.01283.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neurocysticercosis (NC), caused by Taenia solium metacestode, infects the central nervous system and is a devastating parasitic infection. Diagnosis is based on symptoms, imaging, serology and epidemiology. Current markers present variable sensitivity and specificity, frequent cross-reactions and are not able to discriminate NC clinical forms. The aim of this study was to select mimotopes of T. solium metacestode antigens that may be used in NC immunodiagnosis, specifically to discriminate between active and inactive forms. A random peptide phage display library was screened against IgY from chickens immunized with total saline extract from T. solium metacestodes and validated against 110 serum samples, classified into active NC (18), inactive NC (22), cross-reactive parasitic diseases (40) and healthy controls (30). We have successfully selected seven peptides with significant immunoreactivity to IgG of NC patients, with sensitivity ranging from 95.5% to 100% to detect the inactive form and specificity varied from 85.7% to 94.3%. One phage-displayed peptide (Cc48) can be directly used as biomarker to distinguish inactive from active forms with an accuracy of 95.7%, and this novel mimotope may also be used as an auxiliary tool to neuroimaging tests and treatment follow-up.
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Affiliation(s)
- M N Manhani
- Laboratório de Diagnóstico de Parasitoses, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
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Duthie MS, Hay MN, Rada EM, Convit J, Ito L, Oyafuso LKM, Manini MIP, Goulart IMB, Lobato J, Goulart LR, Carter D, Reed SG. Specific IgG antibody responses may be used to monitor leprosy treatment efficacy and as recurrence prognostic markers. Eur J Clin Microbiol Infect Dis 2011; 30:1257-65. [PMID: 21544695 DOI: 10.1007/s10096-011-1221-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 03/08/2011] [Indexed: 11/24/2022]
Abstract
Although curable, leprosy requires better diagnostic and prognostic tools to accompany therapeutic strategies. We evaluated the serum samples of leprosy patients from Venezuela and Brazil for reactivity against the specific recombinant proteins, ML0405 and ML2331, and the LID-1 fusion protein that incorporates both of these antigens. Antigen-specific IgG was highest in lepromatous leprosy patients (LL) and decreased across the disease spectrum, such that only a small subset of true tuberculoid patients (TT) tested positive. The impact of multidrug therapy (MDT) on these antibody responses was also examined. Several years after treatment, the vast majority of Venezuelan patients did not possess circulating anti-LID-1, anti-ML0405, and anti-ML2331 IgG, and the seropositivity of the remaining cases could be attributed to irregular treatment. At discharge, the magnitude and proportion of positive responses of Brazilian patients against the proteins and phenolic glycolipid (PGL)-I were lower for most of the clinical forms. The monthly examination of IgG levels in LL patient sera after MDT initiation indicated that these responses are significantly reduced during treatment. Thus, responses against these antigens positively correlate with bacillary load, clinical forms, and operational classification at diagnosis. Our data indicate that these responses could be employed as an auxiliary tool for the assessment of treatment efficacy and disease relapse.
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Affiliation(s)
- M S Duthie
- Infectious Disease Research Institute, 1124 Columbia St., Suite 400, Seattle, WA 98104, USA.
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Ruiz JC, D'Afonseca V, Silva A, Ali A, Pinto AC, Santos AR, Rocha AAMC, Lopes DO, Dorella FA, Pacheco LGC, Costa MP, Turk MZ, Seyffert N, Moraes PMRO, Soares SC, Almeida SS, Castro TLP, Abreu VAC, Trost E, Baumbach J, Tauch A, Schneider MPC, McCulloch J, Cerdeira LT, Ramos RTJ, Zerlotini A, Dominitini A, Resende DM, Coser EM, Oliveira LM, Pedrosa AL, Vieira CU, Guimarães CT, Bartholomeu DC, Oliveira DM, Santos FR, Rabelo ÉM, Lobo FP, Franco GR, Costa AF, Castro IM, Dias SRC, Ferro JA, Ortega JM, Paiva LV, Goulart LR, Almeida JF, Ferro MIT, Carneiro NP, Falcão PRK, Grynberg P, Teixeira SMR, Brommonschenkel S, Oliveira SC, Meyer R, Moore RJ, Miyoshi A, Oliveira GC, Azevedo V. Evidence for reductive genome evolution and lateral acquisition of virulence functions in two Corynebacterium pseudotuberculosis strains. PLoS One 2011; 6:e18551. [PMID: 21533164 PMCID: PMC3078919 DOI: 10.1371/journal.pone.0018551] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [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: 11/29/2010] [Accepted: 03/11/2011] [Indexed: 02/02/2023] Open
Abstract
Background Corynebacterium pseudotuberculosis, a Gram-positive, facultative intracellular pathogen, is the etiologic agent of the disease known as caseous lymphadenitis (CL). CL mainly affects small ruminants, such as goats and sheep; it also causes infections in humans, though rarely. This species is distributed worldwide, but it has the most serious economic impact in Oceania, Africa and South America. Although C. pseudotuberculosis causes major health and productivity problems for livestock, little is known about the molecular basis of its pathogenicity. Methodology and Findings We characterized two C. pseudotuberculosis genomes (Cp1002, isolated from goats; and CpC231, isolated from sheep). Analysis of the predicted genomes showed high similarity in genomic architecture, gene content and genetic order. When C. pseudotuberculosis was compared with other Corynebacterium species, it became evident that this pathogenic species has lost numerous genes, resulting in one of the smallest genomes in the genus. Other differences that could be part of the adaptation to pathogenicity include a lower GC content, of about 52%, and a reduced gene repertoire. The C. pseudotuberculosis genome also includes seven putative pathogenicity islands, which contain several classical virulence factors, including genes for fimbrial subunits, adhesion factors, iron uptake and secreted toxins. Additionally, all of the virulence factors in the islands have characteristics that indicate horizontal transfer. Conclusions These particular genome characteristics of C. pseudotuberculosis, as well as its acquired virulence factors in pathogenicity islands, provide evidence of its lifestyle and of the pathogenicity pathways used by this pathogen in the infection process. All genomes cited in this study are available in the NCBI Genbank database (http://www.ncbi.nlm.nih.gov/genbank/) under accession numbers CP001809 and CP001829.
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Affiliation(s)
- Jerônimo C. Ruiz
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Vívian D'Afonseca
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Artur Silva
- Department of Genetics, Federal University of Pará, Belém, Pará, Brazil
| | - Amjad Ali
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anne C. Pinto
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anderson R. Santos
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Aryanne A. M. C. Rocha
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Débora O. Lopes
- Health Sciences Center, Federal University of São João Del Rei, Divinópilis, Minas Gerais, Brazil
| | - Fernanda A. Dorella
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luis G. C. Pacheco
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Department of Biointeraction Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Marcília P. Costa
- Department of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Meritxell Z. Turk
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Núbia Seyffert
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pablo M. R. O. Moraes
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Siomar C. Soares
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sintia S. Almeida
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thiago L. P. Castro
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vinicius A. C. Abreu
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Eva Trost
- Department of Genetics, University of Bielefeld, CeBiTech, Bielefeld, Nordrhein-Westfale, Germany
| | - Jan Baumbach
- Department of Computer Science, Max-Planck-Institut für Informatik, Saarbrücken, Saarlan, Germany
| | - Andreas Tauch
- Department of Genetics, University of Bielefeld, CeBiTech, Bielefeld, Nordrhein-Westfale, Germany
| | | | - John McCulloch
- Department of Genetics, Federal University of Pará, Belém, Pará, Brazil
| | | | | | - Adhemar Zerlotini
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Anderson Dominitini
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Daniela M. Resende
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
- Department of Pharmaceutical Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Elisângela M. Coser
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana M. Oliveira
- Department of Phisics, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - André L. Pedrosa
- Department of Pharmaceutical Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Department of Biological Sciences, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Carlos U. Vieira
- Department of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Cláudia T. Guimarães
- Brazilian Agricultural Research Corporation (EMBRAPA), Sete Lagoas, Minas Gerais, Brazil
| | - Daniela C. Bartholomeu
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Diana M. Oliveira
- Department of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Fabrício R. Santos
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Élida Mara Rabelo
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Francisco P. Lobo
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Glória R. Franco
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Flávia Costa
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ieso M. Castro
- Department of Pharmacy, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Sílvia Regina Costa Dias
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Jesus A. Ferro
- Department of Technology, State University of São Paulo, Jaboticabal, São Paulo, Brazil
| | - José Miguel Ortega
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciano V. Paiva
- Department of Chemistry, Federal University of Lavras, Lavras, Minas Gerais, Brazil
| | - Luiz R. Goulart
- Department of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Juliana Franco Almeida
- Department of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Maria Inês T. Ferro
- Department of Technology, State University of São Paulo, Jaboticabal, São Paulo, Brazil
| | - Newton P. Carneiro
- Brazilian Agricultural Research Corporation (EMBRAPA), Sete Lagoas, Minas Gerais, Brazil
| | - Paula R. K. Falcão
- Brazilian Agricultural Research Corporation (EMBRAPA), Campinas, São Paulo, Brazil
| | - Priscila Grynberg
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Santuza M. R. Teixeira
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sérgio Brommonschenkel
- Department of Plant Pathology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Sérgio C. Oliveira
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Roberto Meyer
- Department of Biointeraction Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | - Anderson Miyoshi
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Guilherme C. Oliveira
- Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
- Center of Excellence in Bioinformatics, National Institute of Science and Technology, Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Vasco Azevedo
- Department of General Biology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
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Goulart LR, Vieira CU, Freschi APP, Capparelli FE, Fujimura PT, Almeida JF, Ferreira LF, Goulart IMB, Brito-Madurro AG, Madurro JM. Biomarkers for serum diagnosis of infectious diseases and their potential application in novel sensor platforms. Crit Rev Immunol 2010; 30:201-22. [PMID: 20370630 DOI: 10.1615/critrevimmunol.v30.i2.70] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Nanotechnological tools and biomarkers for diagnosis and prognosis, as well as strategies for disease control and monitoring populations at higher risk, are continuous worldwide challenges for infectious diseases. Phage display and monoclonal antibody combinatorial libraries are important sources for biomarker discovery and for improved diagnostic strategies. Mimetic peptides were selected against polyclonal antibodies from patients with dengue fever, leprosy, and leishmaniasis as model diseases, and from immunized chickens with total antigens from all three pathogens. Selected single or combined multi-epitope peptide biomarkers were further associated with four different sensor platforms, classified as affinity biosensors, that may be suitable as general protocols for field diagnosis. We have also developed two methods for nanoparticle agglutination assays (a particle gel agglutination test and a magnetic microparticle [MMP]-enzyme-linked immunosorbent assay [ELISA]) and two electrochemical biosensors (impedimetric and amperometric) for DNA and antibody detection. For the agglutination tests, micro- and nanoparticles were coupled with filamentous bacteriophages displaying the selected mimotopes on their surfaces, which has favored the formation of the antigen-antibody or peptide-protein complexes, amplifying the optical detection in ELISA assays or after the chromatographic separation of the microagglutinates. We have also demonstrated a proof-of-concept for the electrochemical biosensors by using electrodes modified with novel functionalized polymers. These electrochemical biosensors have proven to be fast, very sensitive, and specific for the detection of pathogen DNA and circulating antibodies of patients, which may become important in a wide range of diagnostic devices for many infectious agents.
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Affiliation(s)
- Luiz R Goulart
- Laboratory of Nanobiotechnology, Federal University of Uberlandia, Uberlandia, MG, Brazil.
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Afonso AS, Goulart LR, Goulart IMB, Machado AEH, Madurro JM, Brito-Madurro AG. A promising bioelectrode based on gene of Mycobacterium leprae immobilized onto poly(4-aminophenol). J Appl Polym Sci 2010. [DOI: 10.1002/app.32595] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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