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Torres Costa KC, Santana Vieira Santos V, Rezende Vaz E, Natalie Cirilo Gimenes S, Ian Veloso Correia L, Brito de Souza J, de Almeida Araújo Santos F, de Melo Rodrigues V, Ricardo Goulart L, Alonso Goulart V. A novel peptide able to reduce PLA 2 activity and modulate inflammatory cytokine production. Toxicon 2023; 231:107207. [PMID: 37364619 DOI: 10.1016/j.toxicon.2023.107207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/19/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
Phospholipases A2 (PLA2s) are associated with inflammatory response, performing a complex process involving, specially, cytokines. The excess of pro-inflammatory cytokines induces a chronic inflammatory response and can cause several disorders in the body. Therefore, the inhibition or regulation of cytokines' signaling pathways is a target for new treatment development strategies. Thus, this study aimed to select PLA2 inhibitor mimetic peptides through phage display technology with anti-inflammatory activity. Specific mimetic peptides were selected using BpPLA2-TXI, a PLA2 isolated from Bothrops pauloensis, as a target, and γCdcPL, a PLA2 inhibitor isolated from Crotalus durissus collilineatus, which was used as a competitor during the elution step. We selected the peptide C2PD, which seems to play a pivotal role in the modulation of IL-6, IL-1β, and IL-10 cytokines in inflammatory cells. The C2PD showed a significant reduction in PLA2 activity. Furthermore, the synthetic peptide was tested in PBMC and showed a significant down-modulation of IL-6 and IL-1β release, whereas IL-10 responses were up-regulated. Our findings suggest that this novel peptide may be a potential therapeutic candidate for the treatment of inflammatory diseases, mainly due to its anti-inflammatory properties and absence of cytotoxicity.
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Affiliation(s)
- Kellen Cristina Torres Costa
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil.
| | - Vanessa Santana Vieira Santos
- Laboratory of Environmental Health, Department of Environmental Health, Institute of Biotechnology, Federal University of Uberlandia, Santa Monica Campus, Avenida João Naves de Ávila, 2121, 38.408-100, Uberlandia, Minas Gerais, Brazil
| | - Emília Rezende Vaz
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | | | - Lucas Ian Veloso Correia
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | - Jessica Brito de Souza
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | - Fabiana de Almeida Araújo Santos
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | - Veridiana de Melo Rodrigues
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil; Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | - Luiz Ricardo Goulart
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
| | - Vivian Alonso Goulart
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Federal University of Uberlândia, Umuarama Campus, Avenida Pará, 1720, 38.400-902, Minas Gerais, Brazil
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Polloni L, Costa TR, Morais LP, Borges BC, Teixeira SC, de Melo Fernandes TA, Correia LIV, Bastos LM, Amorim FG, Quinton L, Soares AM, Silva MJB, Ferro EAV, Lopes DS, de Melo Rodrigues Ávila V. Oxidative stress induced by Pollonein-LAAO, a new L-amino acid oxidase from Bothrops moojeni venom, prompts prostate tumor spheroid cell death and impairs the cellular invasion process in vitro. Cell Signal 2023:110785. [PMID: 37364850 DOI: 10.1016/j.cellsig.2023.110785] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/07/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
Cancer cells produce abnormal levels of reactive oxygen species (ROS) that contribute to promote their malignant phenotype. In this framework, we hypothesized that the change in ROS concentration above threshold could impair key events of prostate cancer cells (PC-3) progression. Our results demonstrated that Pollonein-LAAO, a new L-amino acid oxidase obtained from Bothrops moojeni venom, was cytotoxic to PC-3 cells in two-dimensional and in tumor spheroid assays. Pollonein-LAAO was able to increase the intracellular ROS generation that culminates in cell death from apoptosis by both intrinsic and extrinsic pathways due to the up-regulation of TP53, BAX, BAD, TNFRSF10B and CASP8. Additionally, Pollonein-LAAO reduced mitochondrial membrane potential and caused G0/G1 phase to delay, due to the up-regulation of CDKN1A and the down-regulation of the expression of CDK2 and E2F. Interestingly, Pollonein-LAAO inhibited critical steps of the cellular invasion process (migration, invasion and adhesion), due to the down-regulation of SNAI1, VIM, MMP2, ITGA2, ITGAV and ITGB3. Furthermore, the Pollonein-LAAO effects were associated with the intracellular ROS production, since the presence of catalase restored the invasiveness of PC-3 cells. In this sense, this study contributes to the potential use of Pollonein-LAAO as ROS-based agent to enhance the current understanding of cancer treatment strategies.
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Affiliation(s)
- Lorena Polloni
- Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil.
| | - Tássia Rafaella Costa
- Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Lorena Pinheiro Morais
- Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Bruna Cristina Borges
- Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Samuel Cota Teixeira
- Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | | | | | - Luciana Machado Bastos
- Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | | | - Loïc Quinton
- Department of Chemistry, University of Liège, Liège, Belgium
| | - Andreimar Martins Soares
- Oswaldo Cruz Foundation (FIOCRUZ) Rondônia, Federal University of Rondônia (UNIR), and National Institute of Science and Technology of Epidemiology of the Western Amazon (INCT-EPIAMO), Porto Velho, RO, Brazil
| | | | | | - Daiana Silva Lopes
- Multidisciplinary Institute for Health, Federal University of Bahia - UFBA, Vitoria da Conquista, BA, Brazil
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de Freitas V, Costa TR, Nogueira AR, Polloni L, Alves de Melo Fernandes T, Correia LIV, Borges BC, Teixeira SC, Silva MJB, Amorim FG, Quinton L, Saraiva AL, Espindola FS, Iwai LK, Rodrigues RS, Yoneyama KAG, de Melo Rodrigues Ávila V. Biochemical characterization and assessment of leishmanicidal effects of a new L-amino acid oxidase from Crotalus durissus collilineatus snake venom (CollinLA AO-I). Toxicon 2023; 230:107156. [PMID: 37169266 DOI: 10.1016/j.toxicon.2023.107156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
This study reports the isolation of CollinLAAO-I, a new L-amino acid oxidase from Crotalus durissus collilineatus snake venom, its biochemical characterization and leishmanicidal potential in Leishmania spp. CollinLAAO-I (63.1 kDa) was successfully isolated with high purity using two chromatographic steps and represents 2.5% of total venom proteins. CollinLAAO-I displayed high enzymatic activity (4262.83 U/mg/min), significantly reducing after 28 days. The enzymatic activity of CollinLAAO-I revealed higher affinity for hydrophobic amino acids such as L-leucine, high enzymatic activity in a wide pH range (6.0-10.0), at temperatures from 0 to 25 °C, and showed complete inhibition in the presence of Na+ and K+. Cytotoxicity assays revealed IC50 of 18.49 and 11.66 μg/mL for Leishmania (L.) amazonensis and Leishmania (L.) infantum, respectively, and the cytotoxicity was completely suppressed by catalase. CollinLAAO-I significantly increased the intracellular concentration of reactive oxygen species (ROS) and reduced the mitochondrial potential of both Leishmania species. Furthermore, CollinLAAO-I decreased the parasite capacity to infect macrophages by around 70%, indicating that even subtoxic concentrations of CollinLAAO-I can interfere with Leishmania vital processes. Thus, the results obtained for CollinLAAO-I provide important support for developing therapeutic strategies against leishmaniasis.
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Affiliation(s)
- Vitor de Freitas
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Tássia Rafaella Costa
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Amanda Rodrigues Nogueira
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Lorena Polloni
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Thales Alves de Melo Fernandes
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Lucas Ian Veloso Correia
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Bruna Cristina Borges
- Laboratory of Osteoimmunology and Tumor Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Samuel Cota Teixeira
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Marcelo José Barbosa Silva
- Laboratory of Osteoimmunology and Tumor Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Fernanda Gobbi Amorim
- Laboratory of Mass Spectrometry, Department of Chemistry, University of Liège, Liège, Belgium
| | - Loïc Quinton
- Laboratory of Mass Spectrometry, Department of Chemistry, University of Liège, Liège, Belgium
| | - André Lopes Saraiva
- Laboratory of Biochemistry and Molecular Biology, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Foued Salmen Espindola
- Laboratory of Biochemistry and Molecular Biology, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Leo Kei Iwai
- Laboratory of Applied Toxinology (LETA) and Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
| | - Renata Santos Rodrigues
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Kelly Aparecida Geraldo Yoneyama
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil
| | - Veridiana de Melo Rodrigues Ávila
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlândia - UFU, Uberlândia, MG, Brazil.
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Malta SM, Batista LL, Silva HCG, Franco RR, Silva MH, Rodrigues TS, Correia LIV, Martins MM, Venturini G, Espindola FS, da Silva MV, Ueira-Vieira C. Identification of bioactive peptides from a Brazilian kefir sample, and their anti-Alzheimer potential in Drosophila melanogaster. Sci Rep 2022; 12:11065. [PMID: 35773306 PMCID: PMC9246878 DOI: 10.1038/s41598-022-15297-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 02/23/2022] [Accepted: 06/22/2022] [Indexed: 01/10/2023] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia in the elderly, affecting cognitive, intellectual, and motor functions. Different hypotheses explain AD’s mechanism, such as the amyloidogenic hypothesis. Moreover, this disease is multifactorial, and several studies have shown that gut dysbiosis and oxidative stress influence its pathogenesis. Knowing that kefir is a probiotic used in therapies to restore dysbiosis and that the bioactive peptides present in it have antioxidant properties, we explored its biotechnological potential as a source of molecules capable of modulating the amyloidogenic pathway and reducing oxidative stress, contributing to the treatment of AD. For that, we used Drosophila melanogaster model for AD (AD-like flies). Identification of bioactive peptides in the kefir sample was made by proteomic and peptidomic analyses, followed by in vitro evaluation of antioxidant and acetylcholinesterase inhibition potential. Flies were treated and their motor performance, brain morphology, and oxidative stress evaluated. Finally, we performed molecular docking between the peptides found and the main pathology-related proteins in the flies. The results showed that the fraction with the higher peptide concentration was positive for the parameters evaluated. In conclusion, these results revealed these kefir peptide-rich fractions have therapeutic potential for AD.
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Affiliation(s)
- Serena Mares Malta
- Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, MG, Brazil. .,Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Acre Street, 2E building, room 230, Uberlândia, MG, 38405-319, Brazil.
| | | | | | | | | | | | | | - Mário Machado Martins
- Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Gabriela Venturini
- Laboratório de Genética e Cardiologia Molecular-LIM-13, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | - Murilo Vieira da Silva
- Pró-Reitoria de Pesquisa e Pós-Graduação, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Carlos Ueira-Vieira
- Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, MG, Brazil. .,Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Acre Street, 2E building, room 230, Uberlândia, MG, 38405-319, Brazil.
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5
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Van Petten de Vasconcelos Azevedo F, Lopes DS, Zóia MAP, Correia LIV, Saito N, Fonseca BB, Polloni L, Teixeira SC, Goulart LR, de Melo Rodrigues Ávila V. A New Approach to Inhibiting Triple-Negative Breast Cancer: In Vitro, Ex Vivo and In Vivo Antiangiogenic Effect of BthTx-II, a PLA 2-Asp-49 from Bothrops jararacussu Venom. Biomolecules 2022; 12:258. [PMID: 35204758 PMCID: PMC8961627 DOI: 10.3390/biom12020258] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 09/30/2021] [Revised: 12/28/2021] [Accepted: 01/05/2022] [Indexed: 12/10/2022] Open
Abstract
Phospholipases A2 (PLA2) represent a superfamily of enzymes widely distributed in living organisms, with a broad spectrum of pharmacological activities and therapeutic potential. Anti-angiogenic strategies have become one of the main tools in fighting cancer. In this sense, the present work reports the inhibition of tumor angiogenesis induced by Asp-49 BthTX-II using in vitro, ex vivo and in vivo approaches. We demonstrate that BthTx-II inhibited cell adhesion, proliferation, and migration of human umbilical vein endothelial cells (HUVEC), as well as caused a reduction in the levels of endothelial growth factor (VEGF) during in vitro angiogenesis assays. BthTx-II was also able to inhibit the sprouting angiogenic process, by the ex vivo germination assay of the aortic ring; in addition, this toxin inhibited the migration and proliferation of HUVEC in co-culture with triple-negative breast cancer cells (e.g., MDA-MB-231 cells). Finally, in vivo tumor suppression and anti-angiogenic activities were analyzed using MDA-MB-231 cells with Matrigel injected into the chorioallantoic membrane of chicken embryo (CAM) for 7 days treatment with BthTx-II, showing a considerable reduction in vessel caliber, on the size and weight of tumors. Together, these results suggest an important antiangiogenic and antitumor role for BthTx-II, as a potential prototype for the development of new tools and antitumor drugs in cancer therapy.
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Affiliation(s)
- Fernanda Van Petten de Vasconcelos Azevedo
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (L.I.V.C.); (L.P.)
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (M.A.P.Z.); (N.S.); (L.R.G.)
| | - Daiana Silva Lopes
- Multidisciplinary Institute of Health, Federal University of Bahia, Vitoria da Conquista, Salvador 40170-110, BA, Brazil;
| | - Mariana Alves Pereira Zóia
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (M.A.P.Z.); (N.S.); (L.R.G.)
| | - Lucas Ian Veloso Correia
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (L.I.V.C.); (L.P.)
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (M.A.P.Z.); (N.S.); (L.R.G.)
| | - Natieli Saito
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (M.A.P.Z.); (N.S.); (L.R.G.)
| | | | - Lorena Polloni
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (L.I.V.C.); (L.P.)
| | - Samuel Cota Teixeira
- Department of Immunology, Biomedical Sciences Institute, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil;
| | - Luiz Ricardo Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (M.A.P.Z.); (N.S.); (L.R.G.)
| | - Veridiana de Melo Rodrigues Ávila
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Uberlândia 38408-100, MG, Brazil; (L.I.V.C.); (L.P.)
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Souza JB, Cardoso R, Almeida-Souza HO, Carvalho CP, Correia LIV, Faria PCB, Araujo GR, Mendes MM, Rodrigues RS, Rodrigues VM, Dandekar AM, Goulart LR, Nascimento R. Generation and In-planta expression of a recombinant single chain antibody with broad neutralization activity on Bothrops pauloensis snake venom. Int J Biol Macromol 2020; 149:1241-1251. [PMID: 32035152 DOI: 10.1016/j.ijbiomac.2020.02.028] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 12/26/2022]
Abstract
The main systemic alterations present in bothropic envenomation are hemostasis disorders, for which the conventional treatment is based on animal-produced antiophidic sera. We have developed a neutralizing antibody against Bothrops pauloensis (B. pauloensis) venom, which is member of the genus most predominant in snakebite accidents in Brazil. Subsequently, we expressed this antibody in plants to evaluate its enzymatic and biological activities. The ability of single-chain variable fragment (scFv) molecules to inhibit fibrinogenolytic, azocaseinolytic, coagulant and hemorrhagic actions of snake venom metalloproteinases (SVMPs) contained in B. pauloensis venom was verified through proteolytic assays. The antibody neutralized the toxic effects of envenomation, particularly those related to systemic processes, by interacting with one of the predominant classes of metalloproteinases. This novel molecule is a potential tool with great antivenom potential and provides a biotechnological antidote to snake venom due to its broad neutralizing activity.
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Affiliation(s)
- Jessica B Souza
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil.
| | - Rone Cardoso
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Hebréia O Almeida-Souza
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Camila P Carvalho
- Department of Plant Pathology, University of Sao Paulo, Av. Padua Dias 11, 13418-310 Piracicaba, SP, Brazil
| | - Lucas Ian Veloso Correia
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Paula Cristina B Faria
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Galber R Araujo
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Mirian M Mendes
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Renata Santos Rodrigues
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Veridiana M Rodrigues
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Abhaya M Dandekar
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis, CA 95616, USA
| | - Luiz Ricardo Goulart
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil.
| | - Rafael Nascimento
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
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7
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Rodrigues JP, Vasconcelos Azevedo FVP, Zoia MAP, Maia LP, Correia LIV, Costa-Cruz JM, de Melo Rodrigues V, Goulart LR. The Anthelmintic Effect on Strongyloides venezuelensis Induced by BnSP- 6, a Lys49-phospholipase A2 Homologue from Bothrops pauloensis Venom. Curr Top Med Chem 2019; 19:2032-2040. [DOI: 10.2174/1568026619666190723152520] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/20/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022]
Abstract
Background:
Phospholipases A2 (PLA2) from snake venoms have a broad potential as
pharmacological tools on medicine. In this context, strongyloidiasis is a neglected parasitic disease
caused by helminths of the genus Strongyloides. Currently, ivermectin is the drug of choice for treatment,
however, besides its notable toxicity, therapeutic failures and cases of drug resistance have been
reported. BnSP-6, from Bothorps pauloensis snake venom, is a PLA2 with depth biochemical characterization,
reporting effects against tumor cells and bacteria.
Objective:
The aim of this study is to demonstrate for the first time the action of the PLA2 on Strongyloides
venezuelensis.
Methods:
After 72 hours of treatment with BnSP-6 mortality of the infective larvae was assessed by motility
assay. Cell and parasite viability was evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl
tetrazolium bromide (MTT) assay. Furthermore, autophagic vacuoles were labeled with Monodansylcadaverine
(MDC) and nuclei of apoptotic cells were labeled with Propidium Iodide (PI). Tissue degeneration
of the parasite was highlighted by Transmission Electron Microscopy (TEM).
Results:
The mortality index demonstrated that BnSP-6 abolishes the motility of the parasite. In addition,
the MTT assay attested the cytotoxicity of BnSP-6 at lower concentrations when compared with
ivermectin, while autophagic and apoptosis processes were confirmed. Moreover, the anthelmintic effect
was demonstrated by tissue degeneration observed by TEM. Furthermore, we report that BnSP-6
showed low cytotoxicity on human intestinal cells (Caco-2).
Conclusion:
Altogether, our results shed light on the potential of BNSP-6 as an anthelmintic agent,
which can lead to further investigations as a tool for pharmaceutical discoveries.
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Affiliation(s)
- Jéssica Peixoto Rodrigues
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-248, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Fernanda Van Petten Vasconcelos Azevedo
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-227, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Mariana Alves Pereira Zoia
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-248, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Larissa Prado Maia
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-248, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Lucas Ian Veloso Correia
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-227, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Julia Maria Costa-Cruz
- Laboratory of Parasitological Diagnostics, Institute of Biomedical Sciences, Federal University of Uberlandia, Campus Umuarama BL-4C, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Veridiana de Melo Rodrigues
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-227, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Luiz Ricardo Goulart
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas s/n, Campus Umuarama BL-2E, SL-248, Uberlândia, Minas Gerais, 38400-902, Brazil
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Veloso Correia LI, Neves Oliveira ÂD, Filho RM, Amorim FG, Van Petten De Vasconcelos Azevedo F, Pereira Zóia MA, Goulart LR, Geraldo Yoneyama KA, Vieira CU, Melendez ME, De Melo Rodrigues V, Rodrigues RS. A comprehensive portrait of Ectatomma opaciventre ant venom: transcriptome analysis and biological characterization. Toxicon 2019. [DOI: 10.1016/j.toxicon.2019.06.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oliveira ÂDN, Correia LIV, Arantes LMRB, Carvalho ACD, Messias EA, Sorroche BP, Eguchi FC, Rodrigues RS, Melendez ME, Carvalho AL. Abstract A61: Identification of therapeutic proteins in venom gland of Ectatomma opaciventre for head and neck tumor therapy. Clin Cancer Res 2018. [DOI: 10.1158/1557-3265.tcm17-a61] [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: 11/16/2022]
Abstract
Abstract
Background: Head and neck cancer is the sixth most common cancer site worldwide and is associated with low survival and high mortality rates, when diagnosed in advanced stages. The pursuit for potential therapeutic targets in natural resources may lead to the development of new antineoplastic agents. Several compounds coming from venomous animals are being tested in clinical trials due to their high selectivity and different physiologic activities. In this way, ant-venom glands are composed of bioactive molecules, such as peptides/proteins and allergens, which may be considered as potential therapeutic agents for oncology.
Objectives: The aim was to identify potential therapeutic proteins expressed in venomous glands of Ectatomma opaciventre ants, for the treatment of head and neck squamous cell carcinoma (HNSCC) tumors.
Materials and Methods: The mRNA library of Ectatomma opaciventre was sequenced using Illumina NextSeq 500 platform (76 bp unpaired-end) and NextSeq 500/550 Mid Output v2 kit (150 cycles). Libraries were constructed using TruSeq Stranded mRNA LT Sample Prep Kit (Illumina). A de novo assembly of the Ectatomma opaciventre transcriptome was performed using Velvet software.
Results: The RNA-seq of E. opaciventre venom gland generated 55,131,904 raw reads. The de novo Velvet assembly produced 23,254 contigs, which matched against 12,061 NCBI-Blastn transcripts. From these contigs, 437 full-length transcripts were identified, from which two potential therapeutic genes were selected: SPARC and Phospholipase B. Both SPARC and Phospholipase B genes have been previously described as having antitumor properties.
Conclusions: In conclusion, this deep transcriptome sequencing may have identified two potential therapeutic proteins, which are being analyzed in HNSCC cell lines.
Citation Format: Ângela das Neves Oliveira, Lucas Ian Veloso Correia, Lídia Maria Rebolho Batista Arantes, Ana Carolina de Carvalho, Elisa Alves Messias, Bruna Pereira Sorroche, Flávia Coltri Eguchi, Renata Santos Rodrigues, Matias Eliseo Melendez, André Lopes Carvalho. Identification of therapeutic proteins in venom gland of Ectatomma opaciventre for head and neck tumor therapy [abstract]. In: Proceedings of the AACR International Conference held in cooperation with the Latin American Cooperative Oncology Group (LACOG) on Translational Cancer Medicine; May 4-6, 2017; São Paulo, Brazil. Philadelphia (PA): AACR; Clin Cancer Res 2018;24(1_Suppl):Abstract nr A61.
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