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Dantas Reis Prado N, Brilhante-DA-Silva N, Valentino Paloschi M, Andrade Roberto S, Cardim Barreto B, Fraga Vasconcelos J, Botelho Pereira Soares M, Monteiro de Carvalho R, Foschiera de Melo T, de Souza Santos E, Lima Dos Santos E, Eugenia Souza de Jesus B, Crhistina Santos de Araújo E, Martins Soares A, Guerino Stabeli R, Freire Celedonio Fernandes C, Pavan Zuliani J, Dos Santos Pereira S. Preclinical evaluation of single domain antibody efficacy in mitigating local tissue damage induced by Bothrops snake envenomation. Int Immunopharmacol 2024; 134:112215. [PMID: 38744173 DOI: 10.1016/j.intimp.2024.112215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024]
Abstract
Camelid single-domain antibodies (VHH) represent a promising class of immunobiologicals for therapeutic applications due to their remarkable stability, specificity, and therapeutic potential. To enhance the effectiveness of antivenoms for snakebites, various methods have been explored to address limitations associated with serum therapy, particularly focusing on mitigating local damage and ensuring sustainable production. Our study aimed to characterize the pharmacological profile and neutralization capacity of anti-Phospholipase A2 (PLA2) monomeric VHH (Genbank accessions: KC329718). Using a post-envenoming mouse model, we used intravital microscopy to assess leukocyte influx, measured CK and LDH levels, and conducted a histopathology analysis to evaluate VHH KC329718's ability to neutralize myotoxic activity. Our findings demonstrated that VHH KC329718 exhibited heterogeneous distribution in muscle tissue. Treatment with VHH KC329718 reduced leukocyte influx caused by BthTX-I (a Lys-49 PLA2) by 28 %, as observed through intravital microscopy. When administered at a 1:10 ratio [venom or toxin:VHH (w/w)], VHH KC329718 significantly decreased myotoxicity, resulting in a 35-40 % reduction in CK levels from BthTX-I and BthTX-II (an Asp-49 PLA2) and a 60 % decrease in CK levels from B. jararacussu venom. LDH levels also showed reductions of 60%, 80%, and 60% induced by BthTX-I, BthTX-II, and B. jararacussu venom, respectively. Histological analysis confirmed the neutralization potential, displaying a significant reduction in tissue damage and inflammatory cell count in mice treated with VHH KC329718 post B. jararacussu venom inoculation. This study underscores the potential of monomeric anti-PLA2 VHH in mitigating myotoxic effects, suggesting a promising avenue for the development of new generation antivenoms to address current therapeutic limitations.
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Affiliation(s)
- Nidiane Dantas Reis Prado
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil
| | - Nairo Brilhante-DA-Silva
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, 21040-900 Rio de Janeiro-RJ, Brazil
| | - Mauro Valentino Paloschi
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil
| | - Sibele Andrade Roberto
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil
| | - Breno Cardim Barreto
- Instituto Gonçalo Moniz, IGM, Laboratório de Engenharia Tecidual e Imunofarmacologia, Fundação Oswaldo Cruz, FIOCRUZ, 40296-710, unidade Bahia, Salvador-BA, Brazil
| | - Juliana Fraga Vasconcelos
- Instituto Gonçalo Moniz, IGM, Laboratório de Engenharia Tecidual e Imunofarmacologia, Fundação Oswaldo Cruz, FIOCRUZ, 40296-710, unidade Bahia, Salvador-BA, Brazil
| | - Milena Botelho Pereira Soares
- Instituto Gonçalo Moniz, IGM, Laboratório de Engenharia Tecidual e Imunofarmacologia, Fundação Oswaldo Cruz, FIOCRUZ, 40296-710, unidade Bahia, Salvador-BA, Brazil; Health Technology Institute, SENAI CIMATEC, Salvador, 41650-010, BA, Brazil
| | - Rainery Monteiro de Carvalho
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil
| | - Thifany Foschiera de Melo
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil
| | - Emanuelle de Souza Santos
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil
| | - Eliza Lima Dos Santos
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil
| | - Bruna Eugenia Souza de Jesus
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil
| | - Erika Crhistina Santos de Araújo
- Laboratório de Biotecnologia e Educação Aplicadas à Saúde, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho-RO and Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, 76812-245, Brazil
| | - Andreimar Martins Soares
- Laboratório de Biotecnologia e Educação Aplicadas à Saúde, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, Porto Velho-RO and Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, 76812-245, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil
| | - Rodrigo Guerino Stabeli
- Plataforma Bi-institucional de Medicina Translacional, Fundação Oswaldo Cruz-USP, 14040-900, Ribeirão Preto, São Paulo-SP, Brazil
| | - Carla Freire Celedonio Fernandes
- Laboratório Multiusuário de Pesquisa e Desenvolvimento, Fundação Oswaldo Cruz, Fiocruz unidade Ceará, 61760-000, Eusebio- CE, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, 21040-900 Rio de Janeiro-RJ, Brazil
| | - Juliana Pavan Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, 21040-900 Rio de Janeiro-RJ, Brazil
| | - Soraya Dos Santos Pereira
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, unidade Rondônia, 76812-245, Porto Velho-RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Fiocruz Rondônia and Universidade Federal de Rondônia, UNIR, 76801-974 Porto Velho-RO, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, IOC, 21040-900 Rio de Janeiro-RJ, Brazil.
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Nandana MB, Bharatha M, Praveen R, Nayaka S, Vishwanath BS, Rajaiah R. Dimethyl ester of bilirubin ameliorates Naja naja snake venom-induced lung toxicity in mice via inhibiting NLRP3 inflammasome and MAPKs activation. Toxicon 2024; 244:107757. [PMID: 38740099 DOI: 10.1016/j.toxicon.2024.107757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/06/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
Naja naja snake bite causes thousands of deaths worldwide in a year. N. naja envenomed victims exhibit both local and systemic reactions that potentially lead to death. In clinical practice, pulmonary complications in N. naja envenomation are commonly encountered. However, the molecular mechanisms underlying N. naja venom-induced lung toxicity remain unknown. Here, we reasoned that N. naja venom-induced lung toxicity is prompted by NLRP3 inflammasome and MAPKs activation in mice. Treatment with dimethyl ester of bilirubin (BD1), significantly inhibited the N. naja venom-induced activation of NLRP3 inflammasome and MAPKs both in vivo and in vitro (p < 0.05). Further, BD1 reduced N. naja venom-induced recruitment of inflammatory cells, and hemorrhage in the lung toxicity examined by histopathology. BD1 also diminished N. naja venom-induced local toxicities in paw edema and myotoxicity in mice. Furthermore, BD1 was able to enhance the survival time against N. naja venom-induced mortality in mice. In conclusion, the present data showed that BD1 alleviated N. naja venom-induced lung toxicity by inhibiting NLRP3 inflammasome and MAPKs activation. Small molecule inhibitors that intervene in venom-induced toxicities may have therapeutic applications complementing anti-snake venom.
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Affiliation(s)
- Manuganahalli B Nandana
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India; Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Madeva Bharatha
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Raju Praveen
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Spandan Nayaka
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Bannikuppe S Vishwanath
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India.
| | - Rajesh Rajaiah
- Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India.
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Zhao W, Liu J, Wang S, Tao Q, Lei Q, Huang C. Varespladib mitigates acute liver injury via suppression of excessive mitophagy on Naja atra envenomed mice by inhibiting PLA 2. Toxicon 2024; 242:107694. [PMID: 38556061 DOI: 10.1016/j.toxicon.2024.107694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 04/02/2024]
Abstract
Snakebite envenomation often leads to severe visceral injuries, including acute liver injury (ALI). However, the toxicity mechanism remains unclear. Moreover, varespladib can directly inhibit phospholipase A2 (PLA2) in snake venom, but its protective effect on snakebite-induced ALI and the mechanism have not been clarified. Previous studies have shown that snake venom PLA2 leads to neuron cell death via reactive oxygen species (ROS), one of the initial factors related to the mitophagy pathway. The present study group also found that ROS accumulation occurred after Naja atra envenoming. Hematoxylin and eosin (H/E) staining and immunohistochemistry (IHC) were performed to identify the expression of inflammatory factors in the liver tissue, and flow cytometry and immunofluorescence were used to detect ROS levels and mitochondrial function. Immunofluorescence and western blotting were also used for detecting mitophagy pathway-related proteins. The results showed that N. atra bite induced ALI by activating mitophagy and inducing inflammation and that varespladib had a protective effect. Collectively, these results showed the pathological mechanism of ALI caused by N. atra bite and revealed the protective effect of varespladib.
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Affiliation(s)
- Wenjie Zhao
- School of Basic Medicine Sciences, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Jiahao Liu
- School of Basic Medicine Sciences, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Sidan Wang
- Queen Mary School, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Qinqin Tao
- School of Basic Medicine Sciences, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Qiongqiong Lei
- School of Nursing, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China.
| | - Chunhong Huang
- School of Basic Medicine Sciences, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China.
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Nandana MB, Bharatha M, Vishwanath BS, Rajaiah R. Naja naja snake venom-induced local toxicities in mice is by inflammasome activation. Toxicon 2024; 238:107590. [PMID: 38163462 DOI: 10.1016/j.toxicon.2023.107590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 01/03/2024]
Abstract
Snake bite envenomation causes tissue damage resulting in acute and chronic inflammatory responses. Inflammasome activation is one of the factors involved in tissue damage in a mouse model of snake envenomation. The present study examines the potency of Indian Big Four snake venoms in the activation of inflammasome and its role in local and systemic tissue toxicity. Among Indian Big Four snake venoms, Naja naja venom activated NLRP3 inflammasome in mouse macrophages. Activation of NLRP3 inflammasome was also observed in mouse foot paw and thigh muscle upon administration of N. naja venom. Intraperitoneal administration of N. naja venom cause systemic lung damage showed activation of NLRP3 inflammasome. Treatment with MCC950, a selective NLRP3 inflammasome inhibitor effectively inhibited N. naja venom-induced activation of caspase-1 and liberation of IL-1β in macrophages. In mice, MCC950 partially inhibited the activation of NLRP3 inflammasome in N. naja venom administered foot paw and thigh muscle. In conclusion, the present data showed that inflammasome is one of the host responses involved in N. naja snake venom-induced toxicities. The inhibition of inflammasome activation will provide new insight into better management of snake bite-induced local tissue damage.
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Affiliation(s)
- Manuganahalli B Nandana
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India; Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Madeva Bharatha
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India
| | - Bannikuppe S Vishwanath
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India.
| | - Rajesh Rajaiah
- Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore, Karnataka, 570006, India.
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Serrath SN, Pontes AS, Paloschi MV, Silva MDS, Lopes JA, Boeno CN, Silva CP, Santana HM, Cardozo DG, Ugarte AVE, Magalhães JGS, Cruz LF, Setubal SS, Soares AM, Cavecci-Mendonça B, Santos LD, Zuliani JP. Exosome Liberation by Human Neutrophils under L-Amino Acid Oxidase of Calloselasma rhodostoma Venom Action. Toxins (Basel) 2023; 15:625. [PMID: 37999488 PMCID: PMC10674320 DOI: 10.3390/toxins15110625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/20/2023] [Accepted: 10/17/2023] [Indexed: 11/25/2023] Open
Abstract
L-Amino acid oxidase (LAAO) is an enzyme found in snake venom that has multifaceted effects, including the generation of hydrogen peroxide (H2O2) during oxidative reactions, leading to various biological and pharmacological outcomes such as apoptosis, cytotoxicity, modulation of platelet aggregation, hemorrhage, and neutrophil activation. Human neutrophils respond to LAAO by enhancing chemotaxis, and phagocytosis, and releasing reactive oxygen species (ROS) and pro-inflammatory mediators. Exosomes cellular nanovesicles play vital roles in intercellular communication, including immune responses. This study investigates the impact of Calloselasma rhodostoma snake venom-derived LAAO (Cr-LAAO) on human neutrophil exosome release, including activation patterns, exosome formation, and content. Neutrophils isolated from healthy donors were stimulated with Cr-LAAO (100 μg/mL) for 3 h, followed by exosome isolation and analysis. Results show that Cr-LAAO induces the release of exosomes with distinct protein content compared to the negative control. Proteomic analysis reveals proteins related to the regulation of immune responses and blood coagulation. This study uncovers Cr-LAAO's ability to activate human neutrophils, leading to exosome release and facilitating intercellular communication, offering insights into potential therapeutic approaches for inflammatory and immunological disorders.
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Affiliation(s)
- Suzanne N. Serrath
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Adriana S. Pontes
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Mauro V. Paloschi
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Milena D. S. Silva
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Jéssica A. Lopes
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Charles N. Boeno
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Carolina P. Silva
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Hallison M. Santana
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Daniel G. Cardozo
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Andrey V. E. Ugarte
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - João G. S. Magalhães
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Larissa F. Cruz
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Sulamita S. Setubal
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
| | - Andreimar M. Soares
- Laboratory of Biotechnology of Proteins and Bioactive Compounds Applied to Health (LABIOPROT), National Institute of Science and Technology in Epidemiology of the Occidental Amazonia0 (INCT-EPIAMO), Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho 76801-059, RO, Brazil;
| | - Bruna Cavecci-Mendonça
- Biotechonology Institute (IBTEC), São Paulo State University, Botucatu 01049-010, SP, Brazil; (B.C.-M.); (L.D.S.)
| | - Lucilene D. Santos
- Biotechonology Institute (IBTEC), São Paulo State University, Botucatu 01049-010, SP, Brazil; (B.C.-M.); (L.D.S.)
- Graduate Program in Tropical Diseases and Graduate Program in Medical Biotechnology, Botucatu Medical School (FMB), São Paulo State University, Botucatu 18618-687, SP, Brazil
| | - Juliana P. Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ-Rondônia, Porto Velho 76812-245, RO, Brazil; (S.N.S.); (A.S.P.); (M.V.P.); (M.D.S.S.); (J.A.L.); (C.N.B.); (C.P.S.); (H.M.S.); (D.G.C.); (A.V.E.U.); (J.G.S.M.); (L.F.C.); (S.S.S.)
- Departamento de Medicina, Universidade Federal de Rondônia, Porto Velho 76801-059, RO, Brazil
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6
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Luo P, Ji Y, Liu X, Zhang W, Cheng R, Zhang S, Qian X, Huang C. Affected inflammation-related signaling pathways in snake envenomation: A recent insight. Toxicon 2023; 234:107288. [PMID: 37703930 DOI: 10.1016/j.toxicon.2023.107288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/24/2023] [Accepted: 09/09/2023] [Indexed: 09/15/2023]
Abstract
Snake envenomation is well known to cause grievous pathological signs, including haemorrhagic discharge, necrosis, and respiratory distress. However, inflammatory reactions are also common envenoming manifestations that lead to successive damage, such as oedema, ulceration, lymphadenectasis, systemic inflammatory response syndrome (SIRS) and even multiple organ dysfunction syndrome (MODS). Interference with the inflammatory burst is hence important in the clinical treatment of snake envenomation. Here, we summarize the typical snake toxins (or venoms) that cause inflammatory reactions and the underlying signaling pathways. In brief, inflammatory reactions are usually triggered by snake venom phospholipase A2 (svPLA2), snake venom metalloprotease (SVMP), snake venom serine protease (SVSP) and C-type lectin/snaclec (CTL) as well as disintegrin (DIS) via multiple signaling pathways. They are nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain-containing 3 (NLRP3), nuclear factor kappa-B (NF-κB), mitogen-activated protein kinase (MAPK), janus kinase/signal transducer and activator of transcription (JAK-STAT) and phosphoinositide 3-Kinase/protein kinase B (PI3K/PKB also called PI3K-AKT) signaling pathways. Activation of these pathways promotes the expression of pro-inflammatory molecules such as cytokines, especially interleukin-1β (IL-1β) which causes further inflammatory cascades and manifestations, such as swelling, fever, pain, and severe complications. Remarkably, almost half of introduced snake toxins (or venoms) have anti-inflammatory effects through blocking these pathways and suppressing the expression of pro-inflammatory molecules. Investigation of affected inflammation-related signaling pathways is meaningful to achieve better clinical treatment.
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Affiliation(s)
- Peiyi Luo
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Yuxin Ji
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Xiaohan Liu
- Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, PR China.
| | - Weiyun Zhang
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Ruoxi Cheng
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Shuxian Zhang
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Xiao Qian
- Queen Mary School, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
| | - Chunhong Huang
- College of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, 330000, PR China.
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Ikenohuchi YJ, Silva MDS, Rego CMA, Francisco AF, da Silva Setúbal S, Ferreira E Ferreira AA, Boeno CN, Santana HM, Felipin KP, de Lima AM, de Mattos Fontes MR, Paloschi MV, Soares AM, Zuliani JP. A C-type lectin induces NLRP3 inflammasome activation via TLR4 interaction in human peripheral blood mononuclear cells. Cell Mol Life Sci 2023; 80:188. [PMID: 37349530 PMCID: PMC11073222 DOI: 10.1007/s00018-023-04839-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/17/2023] [Accepted: 06/14/2023] [Indexed: 06/24/2023]
Abstract
Lectins are a large group of proteins found in many snake venoms. BjcuL is a C-type lectin from Bothrops jararacussu snake venom that does not present cytotoxicity action on human peripheral blood mononuclear cells (PBMCs) at concentrations of 5 and 10 μg/mL. BjcuL demonstrates an immunomodulatory role in PBMCs with the production of pro- and anti-inflammatory cytokines (IL-2, IL-10, IFN-γ, IL-6, TNF-α, and IL-17) in addition to stimulate T cells to produce reactive oxygen species (ROS) that could play a role in the acute inflammatory reaction observed in the victims. Inflammasomes are an essential arm in cells of innate immunity to detect and sense a range of endogenous or exogenous, sterile, or infectious stimuli to elicit cellular responses and effector mechanisms. NLRP3 inflammasome is a significant target for this study, because the lectin is responsible for leukocyte activation stimulating the release of inflammatory mediators, which results in dynamic cellular responses to remove the detrimental process to the body in snakebites. Thus, this study aimed to investigate how isolated BjcuL from B. jararacussu venom affects NLRP3 inflammasome activation on PBMCs. For this, the cells were isolated by density gradient and incubated with BjcuL at different periods and concentrations for the evaluation of the activation of the NLRP3 inflammasome through gene and protein expressions of ASC, CASPASE-1, and NLRP3 by RT-qPCR, Western blot, and immunofluorescence, as well as the participation of Toll-like receptor 4 (TLR4) and ROS in the IL-1β production, a product resultant of the NLRP3 inflammasome activation. Herein, BjcuL interacts with TLR4 as demonstrated by in vitro and in silico studies and induces cytokines release via NF-κB signaling. By genic and protein expression assays, BjcuL activates NLRP3 inflammasome, and the pharmacological modulation with LPS-RS, an antagonist of TLR4; LPS-SM, an agonist of TLR4; MCC950, a specific NLRP3 inhibitor, and rotenone, an inhibitor of mitochondrial ROS, confirmed the participation of TLR4 and ROS in the NLRP3 inflammasome activation and IL-1β liberation. The effects of BjcuL on the regulation and activation of the NLRP3 inflammasome complex via TLR4 activation with ROS participation may be determinant for the development of the inflammatory local effects seen in snakebite victims. In addition, in silico together with in vitro studies provide information that may be useful in the rational design of TLR agonists as well as new adjuvants for immunomodulatory therapy.
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Affiliation(s)
- Yoda Janaina Ikenohuchi
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Milena Daniela Souza Silva
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Cristina Matiele Alves Rego
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Aleff Ferreira Francisco
- Department of Physics and Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, Brazil
- Laboratory of Biotechnology of Proteins and Bioactive Compounds Applied to Health (LABIOPROT) and National Institute of Science and Technology in Epidemiology of the Occidental Amazonia (INCT-EPIAMO), Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, Brazil
| | - Sulamita da Silva Setúbal
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Alex Augusto Ferreira E Ferreira
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Charles Nunes Boeno
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Hallison Mota Santana
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Kátia Paula Felipin
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Anderson Maciel de Lima
- Laboratory of Biotechnology of Proteins and Bioactive Compounds Applied to Health (LABIOPROT) and National Institute of Science and Technology in Epidemiology of the Occidental Amazonia (INCT-EPIAMO), Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, Brazil
| | - Marcos Roberto de Mattos Fontes
- Department of Physics and Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu, SP, Brazil
- Institute for Advance Studies of the Sea (IEAMAR), São Paulo State University, UNESP, São Vicente, SP, Brazil
| | - Mauro Valentino Paloschi
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil
| | - Andreimar Martins Soares
- Laboratory of Biotechnology of Proteins and Bioactive Compounds Applied to Health (LABIOPROT) and National Institute of Science and Technology in Epidemiology of the Occidental Amazonia (INCT-EPIAMO), Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, Brazil
| | - Juliana Pavan Zuliani
- Laboratory of Cellular Immunology Applied to Health, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Rua da Beira, 7671 BR364, Km 3.5, Porto Velho, RO, CEP 76812-245, Brazil.
- Department of Medicine, Federal University of Rondônia, UNIR, Porto Velho, RO, Brazil.
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Tan CH, Tan KY, Ng TS, Tan NH, Chong HP. De Novo Venom Gland Transcriptome Assembly and Characterization for Calloselasma rhodostoma (Kuhl, 1824), the Malayan Pit Viper from Malaysia: Unravelling Toxin Gene Diversity in a Medically Important Basal Crotaline. Toxins (Basel) 2023; 15:toxins15050315. [PMID: 37235350 DOI: 10.3390/toxins15050315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
In Southeast Asia, the Malayan Pit Viper (Calloselasma rhodostoma) is a venomous snake species of medical importance and bioprospecting potential. To unveil the diversity of its toxin genes, this study de novo assembled and analyzed the venom gland transcriptome of C. rhodostoma from Malaysia. The expression of toxin genes dominates the gland transcriptome by 53.78% of total transcript abundance (based on overall FPKM, Fragments Per Kilobase Million), in which 92 non-redundant transcripts belonging to 16 toxin families were identified. Snake venom metalloproteinase (SVMP, PI > PII > PIII) is the most dominant family (37.84% of all toxin FPKM), followed by phospholipase A2 (29.02%), bradykinin/angiotensin-converting enzyme inhibitor-C-type natriuretic peptide (16.30%), C-type lectin (CTL, 10.01%), snake venom serine protease (SVSP, 2.81%), L-amino acid oxidase (2.25%), and others (1.78%). The expressions of SVMP, CTL, and SVSP correlate with hemorrhagic, anti-platelet, and coagulopathic effects in envenoming. The SVMP metalloproteinase domains encode hemorrhagins (kistomin and rhodostoxin), while disintegrin (rhodostomin from P-II) acts by inhibiting platelet aggregation. CTL gene homologues uncovered include rhodocytin (platelet aggregators) and rhodocetin (platelet inhibitors), which contribute to thrombocytopenia and platelet dysfunction. The major SVSP is a thrombin-like enzyme (an ancrod homolog) responsible for defibrination in consumptive coagulopathy. The findings provide insight into the venom complexity of C. rhodostoma and the pathophysiology of envenoming.
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Affiliation(s)
- Choo Hock Tan
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Kae Yi Tan
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Tzu Shan Ng
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Nget Hong Tan
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Ho Phin Chong
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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9
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Zuliani JP. Alarmins and inflammatory aspects related to snakebite envenomation. Toxicon 2023; 226:107088. [PMID: 36924999 DOI: 10.1016/j.toxicon.2023.107088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/27/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Snakebite envenoming is characterized by the injection of a mixture of proteins/toxins present in venom following the bite of a venomous snake. The toxins have potent bioactivity capability to impact different aspects of envenomation evolution. The cascade of immune responses initiated by the participation of venom and/or toxins isolated from snake venom can contribute to the systemic and local inflammatory effects observed in victims of envenomation. To understand envenomation, a deeper comprehension of the numerous cells, mediators, and components that comprise the immune system reaction to the venom components is required. Thus, activities related to the immune response are highlighted in this study, including the initial line of defense of the innate immune response as signals for the complicated reaction led by specialized cells.
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Affiliation(s)
- Juliana P Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, RO, Brazil; Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil.
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Tan CH, Wong KY, Huang LK, Tan KY, Tan NH, Wu WG. Snake Venomics and Antivenomics of Cape Cobra ( Naja nivea) from South Africa: Insights into Venom Toxicity and Cross-Neutralization Activity. Toxins (Basel) 2022; 14:toxins14120860. [PMID: 36548757 PMCID: PMC9783313 DOI: 10.3390/toxins14120860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022] Open
Abstract
Naja nivea (Cape Cobra) is endemic to southern Africa. Envenoming by N. nivea is neurotoxic, resulting in fatal paralysis. Its venom composition, however, has not been studied in depth, and specific antivenoms against it remain limited in supply. Applying a protein decomplexation approach, this study unveiled the venom proteome of N. nivea from South Africa. The major components in the venom are cytotoxins/cardiotoxins (~75.6% of total venom proteins) and alpha-neurotoxins (~7.4%), which belong to the three-finger toxin family. Intriguingly, phospholipase A2 (PLA2) was undetected-this is a unique venom phenotype increasingly recognized in the African cobras of the Uraeus subgenus. The work further showed that VINS African Polyvalent Antivenom (VAPAV) exhibited cross-reactivity toward the venom and immunorecognized its toxin fractions. In mice, VAPAV was moderately efficacious in cross-neutralizing the venom lethality with a potency of 0.51 mg/mL (amount of venom completely neutralized per milliliter of antivenom). In the challenge-rescue model, VAPAV prevented death in 75% of experimentally envenomed mice, with slow recovery from neurotoxicity up to 24 h. The finding suggests the potential para-specific utility of VAPAV for N. nivea envenoming, although a higher dose or repeated administration of the antivenom may be required to fully reverse the neurotoxic effect of the venom.
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Affiliation(s)
- Choo Hock Tan
- Venom Research and Toxicology Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
- Institute of Bioinformatics and Structural Biology, Department of Life Science, National Tsing Hua University, Hsinchu 300044, Taiwan
- Correspondence: or
| | - Kin Ying Wong
- Venom Research and Toxicology Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
- Institute of Bioinformatics and Structural Biology, Department of Life Science, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Li-Kun Huang
- Institute of Bioinformatics and Structural Biology, Department of Life Science, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Kae Yi Tan
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Nget Hong Tan
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Wen-Guey Wu
- Institute of Bioinformatics and Structural Biology, Department of Life Science, National Tsing Hua University, Hsinchu 300044, Taiwan
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