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Gogoi D, Chattopadhyay P, Dolui SK, Khan MR, Mukherjee AK. Studies on in vivo antithrombotic activity of quercetin, a natural flavonoid isolated from a traditional medicinal plant, African eggplant (Solanum indicum). JOURNAL OF ETHNOPHARMACOLOGY 2024; 335:118686. [PMID: 39127114 DOI: 10.1016/j.jep.2024.118686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 07/30/2024] [Accepted: 08/08/2024] [Indexed: 08/12/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Every year, cardiovascular diseases (CVDs) account for about 17.9 million deaths, making them the primary cause of both morbidity and mortality. Conventional drugs, which are often prescribed to treat cardiovascular diseases, are costly and have adverse effects. Consequently, dietary modifications and other medications are needed. Traditional use of Solanum indicum as cardiotonic to treat hypertension and anticoagulant potency has been reported but poorly evaluated scientifically. AIM OF THE STUDY This study investigated the in vivo anticoagulant activity and mechanism of anticoagulation of quercetin (QC), a bioactive compound isolated from S. indicum (SI) hydroethanolic fruit extract. MATERIALS AND METHODS Bioassay-guided fractionation (anticoagulant activity) extracted QC from hydroethanolic SI extract. QC was extensively characterized biochemically and pharmacologically. The interaction between QC and thrombin was investigated using spectrofluorometric and isothermal calorimetric methods. Cytotoxicity, antiplatelet, and thrombolytic studies were carried out in vitro. The Swiss albino mice were used to assess the in vivo, anticoagulant, and antithrombotic activities of QC. RESULTS QC exhibits anticoagulant activity via (i) uncompetitive inhibition of thrombin but not FXa with a Ki value of 33.11 ± 4.2 μM and (ii) a partial inhibition of thrombin-catalyzed platelet aggregation with an IC50 value of 13.2 ± 1.2 μM. The experimental validation of the in silico study's prediction of QC's binding to thrombin was confirmed by spectrofluorometric and isothermal calorimetric analyses. QC was nontoxic to mammalian, non-hemolytic cells and demonstrated thrombolytic activity by activating plasminogen. QC demonstrated in vivo anticoagulant efficacy, preventing k-carrageen-induced thrombus formation in mice's tails. In the acute circulatory stasis paradigm in mice, QC reduces thromboxane B2 (TXB2) and endothelin-1 (ET-1) while increasing nitric oxide synthase (eNOS) and 6-keto prostaglandin F1α (6-keto-PGF1 α). CONCLUSION Effective in vivo anticoagulant and antithrombotic properties of S. indicum's bioactive component QC point to the plant's potential use as a herbal anticoagulant medication for preventing and treating cardiovascular diseases linked to thrombosis.
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Affiliation(s)
- Debananda Gogoi
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India
| | | | - Swapan K Dolui
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam, India
| | - Mujibur R Khan
- Division of Life Sciences, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, 781035, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India; Division of Life Sciences, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, 781035, Assam, India.
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Coimbra FCP, Sanchez EE, Lomonte B, Gutiérrez JM, Calvete JJ, Fry BG. Blood Lines: Intraspecific and Interspecific Variations in Anticoagulant Actions of Agkistrodon Viperid Venoms. Toxins (Basel) 2024; 16:291. [PMID: 39057931 PMCID: PMC11281148 DOI: 10.3390/toxins16070291] [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: 05/28/2024] [Revised: 06/23/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
This study investigated the intraspecific and interspecific variability in the venom effects of Agkistrodon viperid snake species and subspecies (eleven venoms total) on plasma clotting times, fibrinogen levels, and fibrin clot strength. Significant delays in plasma clotting time were observed for A. conanti, A. contortrix mokasen, A. contortrix phaeogaster, A. howardgloydi, A. piscivorus leucostoma, and A. piscivorus piscivorus. Notably, the phylogenetically disjunct lineages A. conanti, A. contortrix mokasen, and A. howardgloydi exhibited the most potent anticoagulant effects, indicating the independent amplification of a basal trait. Inhibition assays with the activated clotting enzymes Factors XIa, IXa, Xa, and IIa (thrombin) revealed that FXa inhibition is another basal trait amplified independently on multiple occasions within the genus, but with A. howardgloydi, notably more potent than all others. Phospholipid degradation and zymogen destruction were identified as mechanisms underlying the variability in venom effects observed experimentally and in previous clinical reports. Thromboelastography demonstrated that the venoms did not clot fibrinogen directly but affected fibrin clot strength by damaging fibrinogen and that thrombin was subsequently only able to cleave into weak, unstable clots. The ability to activate Protein C, an endogenous anticoagulant enzyme, varied across species, with some venoms exceeding that of A. contortrix contortrix, which previously yielded the protein diagnostic agent Protac®. Phylogenetic analysis suggested that both fibrinogen degradation and Protein C activation were each amplified multiple times within the genus, albeit with negative correlation between these two modes of action. This study highlights the evolutionary, clinical, and biodiscovery implications of venom variability in the Agkistrodon species, underscoring their dynamic evolution, emphasising the need for tailored clinical approaches, and highlighting the potential for novel diagnostic and therapeutic developments inspired by the unique properties of snake venoms.
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Affiliation(s)
- Francisco C. P. Coimbra
- Adaptive Biotoxicology Lab, School of the Environment, University of Queensland, St Lucia, QLD 4072, Australia;
| | - Elda E. Sanchez
- National Natural Toxins Research Center, Department of Chemistry, Texas A&M University-Kingsville, MSC 224, 975 West Avenue B, Kingsville, TX 78363, USA;
| | - Bruno Lomonte
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José 11501, Costa Rica; (B.L.); (J.M.G.)
| | - José María Gutiérrez
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José 11501, Costa Rica; (B.L.); (J.M.G.)
| | - Juan J. Calvete
- Laboratorio de Venómica Evolutiva y Traslacional, Instituto de Biomedicina de Valencia, CSIC, 46010 Valencia, Spain;
| | - Bryan G. Fry
- Adaptive Biotoxicology Lab, School of the Environment, University of Queensland, St Lucia, QLD 4072, Australia;
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Gopal G, Selvaraj H, Venkataramanan SK, Venkataraman S, Saravanan K, Bibina C, Ambi SV. Systematic review and meta-analysis on the efficacy of Indian polyvalent antivenom against the Indian snakes of clinical significance. Arch Toxicol 2024; 98:375-393. [PMID: 38153416 DOI: 10.1007/s00204-023-03643-9] [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: 09/23/2023] [Accepted: 11/16/2023] [Indexed: 12/29/2023]
Abstract
Snakebite in India is a severe problem as it causes a mortality rate of 58,000 and a disability rate of 140,000 every year which is the highest among any other country. Antivenom is the primary therapy for snakebite, and its manufacturing techniques have essentially stayed unaltered for over a century. Indian polyvalent antivenom, a scientifically validated medicine for treating the toxic effects of snakebites, is available against the venom of the so-called Big Four snakes namely Spectacled cobra (Naja naja), Saw-scaled viper (Echis carinatus), Russell's viper (Daboia russelli) and the Common krait (Bungarus caeruleus), responsible for majority of the deaths in India. India hosts many other species of snakes, including cobras, kraits, saw-scaled vipers, sea snakes, and pit vipers, responsible for clinically severe envenomation. Neutralization strategy has been applied to access the efficacy of antivenoms, crucial for reducing snake bite deaths and disabilities. This review aims to conduct a systematic review and meta-analysis on the neutralization efficiency of the Polyvalent Antivenom (PAV) and focus on the factors that may contribute to the poor recognition of the antivenom towards the venom toxins. Reports focusing on the investigation of antivenom efficacy were searched and collected from several databases. Preclinical studies that reported the neutralization efficacy of the commercial antivenom against the medically important snakes of India were included. The articles were screened based on the inclusion criteria and 8 studies were shortlisted for meta-analysis. Pooled proportion was calculated for the antivenom efficacy reported by the studies and was found to be statistically significant with a 95% confidence interval. The heterogenicity in the venom toxicity and neutralization potency of the antivenom was evident in the overall estimate (proportion) and individual data. We provide comprehensive evidence on antivenom efficacy against medically important snakes from various parts of India which may aid in identifying the gaps in snake envenomation therapy and the need for novel potentially improved treatment of snakebites.
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Affiliation(s)
- Gayathri Gopal
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
- Department of Bioengineering, School of Chemical and Biotechnology, , SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Harish Selvaraj
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Suresh Krishna Venkataramanan
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Saraswathi Venkataraman
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Keerthana Saravanan
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Catherine Bibina
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India
| | - Senthil Visaga Ambi
- Biopharmaceutical Research Lab, Anusandhan Kendra-1, School of Chemical and Biotechnology, SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India.
- Department of Bioengineering, School of Chemical and Biotechnology, , SASTRA Deemed-to-be-University, Thanjavur, Tamil Nadu, 613401, India.
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Diniz-Sousa R, Silva CCA, Pereira SS, da Silva SL, Fernandes PA, Teixeira LMC, Zuliani JP, Soares AM. Therapeutic applications of snake venoms: An invaluable potential of new drug candidates. Int J Biol Macromol 2023; 238:124357. [PMID: 37028634 DOI: 10.1016/j.ijbiomac.2023.124357] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 04/09/2023]
Abstract
Animal venoms and their chemical compounds have aroused both empirical and scientific attention for ages. However, there has been a significant increase in scientific investigations in recent decades, allowing the production of various formulations that are helping in the development of many important tools for biotechnological, diagnostic, or therapeutic use, both in human and animal health, as well as in plants. Venoms are composed of biomolecules and inorganic compounds that may have physiological and pharmacological activities that are not related to their principal actions (prey immobilization, digestion, and defense). Snake venom toxins, mainly enzymatic and non-enzymatic proteins, and peptides have been identified as potential prototypes for new drugs and/or models for the development of pharmacologically active structural domains for the treatment of cancer, cardiovascular diseases, neurodegenerative and autoimmune diseases, pain, and infectious-parasitic diseases. This minireview aims to provide an overview of the biotechnological potential of animal venoms, with a focus on snakes, and to introduce the reader to the fascinating world of Applied Toxinology, where animal biodiversity can be used to develop therapeutic and diagnostic applications for humans.
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Affiliation(s)
- Rafaela Diniz-Sousa
- Laboratório de Biotecnologia de Proteínas e Compostos Bioativos Aplicados à Saúde (LABIOPROT), Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, Rondônia, Brazil; Centro Universitário São Lucas (UniSL), Porto Velho, Rondônia, Brazil
| | - Cleópatra C A Silva
- Laboratório de Biotecnologia de Proteínas e Compostos Bioativos Aplicados à Saúde (LABIOPROT), Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, Rondônia, Brazil; Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental (INCT-EpiAmO), Porto Velho, Rondônia, Brazil
| | - Soraya S Pereira
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, Rondônia, Brazil
| | - Saulo L da Silva
- LAQV/Requimte, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal; Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal; Faculty of Chemical Sciences, University of Cuenca, Cuenca, Azuay, Ecuador
| | - Pedro A Fernandes
- LAQV/Requimte, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal; Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - Luís M C Teixeira
- LAQV/Requimte, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal; Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - Juliana P Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, Rondônia, Brazil
| | - Andreimar M Soares
- Laboratório de Biotecnologia de Proteínas e Compostos Bioativos Aplicados à Saúde (LABIOPROT), Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, Rondônia, Brazil; Centro Universitário São Lucas (UniSL), Porto Velho, Rondônia, Brazil; Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental (INCT-EpiAmO), Porto Velho, Rondônia, Brazil; Faculdade Católica de Rondônia (FCR), Porto Velho, Rondônia, Brazil.
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5
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Ding L, Shu Z, Hao J, Luo X, Ye X, Zhu W, Duan W, Chen Z. Schixator, a new FXa inhibitor from Schistosoma japonicum with antithrombotic effect and low bleeding risk. Biochem Biophys Res Commun 2022; 603:138-143. [DOI: 10.1016/j.bbrc.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 11/26/2022]
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Kalita B, Saviola AJ, Samuel SP, Mukherjee AK. State-of-the-art review - A review on snake venom-derived antithrombotics: Potential therapeutics for COVID-19-associated thrombosis? Int J Biol Macromol 2021; 192:1040-1057. [PMID: 34656540 PMCID: PMC8514616 DOI: 10.1016/j.ijbiomac.2021.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 12/30/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent responsible for the Coronavirus Disease-2019 (COVID-19) pandemic, has infected over 185 million individuals across 200 countries since December 2019 resulting in 4.0 million deaths. While COVID-19 is primarily associated with respiratory illnesses, an increasing number of clinical reports indicate that severely ill patients often develop thrombotic complications that are associated with increased mortality. As a consequence, treatment strategies that target COVID-associated thrombosis are of utmost clinical importance. An array of pharmacologically active compounds from natural products exhibit effects on blood coagulation pathways, and have generated interest for their potential therapeutic applications towards thrombotic diseases. In particular, a number of snake venom compounds exhibit high specificity on different blood coagulation factors and represent excellent tools that could be utilized to treat thrombosis. The aim of this review is to provide a brief summary of the current understanding of COVID-19 associated thrombosis, and highlight several snake venom compounds that could be utilized as antithrombotic agents to target this disease.
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Affiliation(s)
- Bhargab Kalita
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India; National Centre for Cell Science, Pune 411007, Maharashtra, India
| | - Anthony J Saviola
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Stephen P Samuel
- Queen Elizabeth Hospital King's Lynn NHS Foundation Trust, King's Lynn, Norfolk PE30 4ET, UK
| | - Ashis K Mukherjee
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India; Institute of Advanced Study in Science and Technology, Guwahati 781035, Assam, India.
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Kalita B, Saviola AJ, Mukherjee AK. From venom to drugs: a review and critical analysis of Indian snake venom toxins envisaged as anticancer drug prototypes. Drug Discov Today 2021; 26:993-1005. [DOI: 10.1016/j.drudis.2020.12.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/13/2020] [Accepted: 12/21/2020] [Indexed: 12/14/2022]
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Gogoi D, Jha S, Chattopadhyay P, Mukherjee AK. A simple, cost‐effective, and rapid separation process for the isolation of anticoagulant active fraction from the fruit extract of
Momordica charantia
: Characterization of bioactive components and anticoagulant mechanism of active fraction in a mouse model. J Sep Sci 2020; 43:3902-3912. [DOI: 10.1002/jssc.202000452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/24/2020] [Accepted: 08/13/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Debananda Gogoi
- Microbial Biotechnology and Protein Research Laboratory Department of Molecular Biology and Biotechnology, School of Sciences Tezpur University Tezpur Assam India
| | - Shambhavi Jha
- Microbial Biotechnology and Protein Research Laboratory Department of Molecular Biology and Biotechnology, School of Sciences Tezpur University Tezpur Assam India
| | | | - Ashis K. Mukherjee
- Microbial Biotechnology and Protein Research Laboratory Department of Molecular Biology and Biotechnology, School of Sciences Tezpur University Tezpur Assam India
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Nerve growth factor from Indian Russell’s viper venom (RVV-NGFa) shows high affinity binding to TrkA receptor expressed in breast cancer cells: Application of fluorescence labeled RVV-NGFa in the clinical diagnosis of breast cancer. Biochimie 2020; 176:31-44. [DOI: 10.1016/j.biochi.2020.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/04/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022]
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L Venkatraman K, A Syed A, Indumathi P, Mehta A. VITPOR AI, A Coagulation Factor XIIa Inhibitor from Porphyra yezoensis: In Vivo Mode of Action and Assessment of Platelet Function Analysis. Protein Pept Lett 2020; 27:243-250. [PMID: 31738131 DOI: 10.2174/0929866526666191026111056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Thrombosis represents as the prime contributor to the burden of diseases, worldwide. Conventional anticoagulants for thrombosis therapy have a common bleeding side effect. Bioactive peptides are studied to be an effective alternative for currently available therapeutic drugs. OBJECTIVE In this study, VITPOR AI peptide, a previously reported coagulation FXIIa inhibitor from Nori (Porphyra yezoensis), was assessed for its inhibitory activity against FXIIa and its in vivo mode of action. METHODS In vivo efficacy as well as the antithrombotic property of the peptide was evaluated in mice model by ex vivo activated Partial Thromboplastin Time assay, tail transection model and whole blood clotting time. The enzyme kinetics was studied using chromogenic substrate assay. RESULTS The kinetic behaviour of VITPOR AI showed that the peptide is a competitive inhibitor of FXIIa. Peptide showed significant inhibition of platelet adhesion and aggregation. VITPOR AI exhibited significant antithrombotic activity. Furthermore, ex vivo activated Partial Thromboplastin Time assay revealed that VITPOR AI exhibited potent anticoagulant activity in vivo. Tail bleeding assay revealed that the peptide did not prolong bleeding time in mice even at a higher dose of 5 mg/kg. Cytotoxicity studies of the peptide against human blood leukocytes indicated the safety of the peptide. CONCLUSION VITPOR AI could be prospected as a potent anticoagulant with Factor XIIa inhibition, antiplatelet aggregation and antithrombotic activity. It was also studied to have no bleeding side effect.
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Affiliation(s)
- Kalkooru L Venkatraman
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Azeemullah A Syed
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Parimelazhagan Indumathi
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Alka Mehta
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
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Chen F, Huang G. Mechanism and inhibition kinetics of peptide P13 as thrombin inhibitor. Int J Biol Macromol 2019; 150:1046-1052. [PMID: 31743711 DOI: 10.1016/j.ijbiomac.2019.10.109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/22/2019] [Accepted: 10/10/2019] [Indexed: 12/11/2022]
Abstract
Excessive coagulation can easily lead to arterial and venous thrombosis, which is the main reason for the evolution of myocardial infarction and cerebrovascular accidents. As a key coagulation factor for the coagulation pathway, thrombin has become a remarkable target for the control of thrombosis. The synthesized peptide P13 with amino acid sequence of N-RGDAGFAGDDAPR was expected to be an inhibitor with higher antithrombotic activity. The results showed that the IC50 (50% inhibition of thrombin activity) of the peptide P13 was determined by colorimetric method to be 115 µM. And enzyme kinetic experiments showed that P13 was a competitive inhibitor of thrombin with Ki = 106 µM. Fluorescence spectra and three-dimensional fluorescence showed that P13 could alter the secondary structure of thrombin and the microenvironment of certain chromogenic amino acids. P13 can spontaneously bind with thrombin exosite 1 in the form of 1:1 mainly through hydrogen bonding and van der Waals force. And the optimal docking mode of P13 and thrombin was revealed by molecular docking with "-CDOCKER_Energy" of 178.679 kcal mol-1. This study revealed P13 may become a potential anticoagulant drug widely used after further studies in preclinical and clinical trials.
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Affiliation(s)
- Fangyuan Chen
- Key Lab of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Guangrong Huang
- Key Lab of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China.
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Gogoi D, Ramani S, Bhartari S, Chattopadhyay P, Mukherjee AK. Characterization of active anticoagulant fraction and a fibrin(ogen)olytic serine protease from leaves of Clerodendrum colebrookianum, a traditional ethno-medicinal plant used to reduce hypertension. JOURNAL OF ETHNOPHARMACOLOGY 2019; 243:112099. [PMID: 31326559 DOI: 10.1016/j.jep.2019.112099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 05/21/2019] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cardiovascular diseases are the major cause of mortality and morbidity, causing over 17.9 million deaths a year worldwide. Currently used therapy is often having side effects and expensive, dietary interventions and alternative medicines are required. Clerodendrum colebrookianum has been used to treat cardiac hypertension but anticoagulant potency was not evaluated. AIM OF THE STUDY To characterize an active anticoagulant fraction (AAFCC) and a 30 kDa fibrin(ogen)olytic serine protease (clerofibrase) isolated from aqueous leave extract of C. colebrookianum. MATERIALS AND METHODS AAFCC/clerofibrase was subjected to extensive biochemical and pharmacological characterization including LC-MS/MS, amino acid compositional and GC-MS analyses. Interaction between clerofibrase with fibrinogen was studied by spectrofluorometric analysis. In vitro thrombolytic, antiplatelet and cytotoxicity assay were performed. In vivo toxicity, anticoagulant, defibrinogen and antithrombotic activities were determined on Swiss albino mice. RESULTS The in vitro anticoagulant activity of AAFCC was found to be superior to heparin and clerofibrase and comparable to Nattokinase and warfarin. The proteomics and amino acid composition analyses suggest that clerofibrase is a previously uncharacterized novel plant protease capable of degrading the -αβ chains of fibrinogen/fibrin. AAFCC/clerofibrase exerts their anticoagulant action via fibrinogenolytic activity and partially by antiplatelet activity albeit they have no effect on thrombin and FXa inhibition. The spectrofluorometric analysis revealed the binding of clerofibrase to fibrinogen but not to thrombin and FXa. The phytochemical constituents and bioactive components of AAFCC were characterized by biochemical, and GC-MS analyses. The AAFCC and clerofibrase inhibited collagen/ADP-induced mammalian platelet aggregation, showed in vitro thrombolytic activity, and non-cytotoxic to mammalian cells. The AAFCC showed and dose-dependent in vivo plasma defibrinogenating and anticoagulant activities and inhibited k-carrageen-induced thrombus formation in the tails of mice. CONCLUSION The potent in vivo anticoagulant and antithrombotic effects of AAFCC suggests its pharmacological significance as herbal anticoagulant drug for the prevention and/or treatment of hyperfibrinogenemia- and thrombosis associated cardiovascular disorders.
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Affiliation(s)
- Debananda Gogoi
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India
| | - Sheetal Ramani
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India
| | - Surbhi Bhartari
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India
| | - Pronobesh Chattopadhyay
- Division of Pharmaceutical Technology, Defense Research Laboratory, Tezpur, 784501, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur, 784028, Assam, India.
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Co-immobilization of ACH 11 antithrombotic peptide and CAG cell-adhesive peptide onto vascular grafts for improved hemocompatibility and endothelialization. Acta Biomater 2019; 97:344-359. [PMID: 31377424 DOI: 10.1016/j.actbio.2019.07.057] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/28/2019] [Accepted: 07/30/2019] [Indexed: 11/20/2022]
Abstract
Surface modification by conjugating biomolecules has been widely proved to enhance biocompatibility of small-caliber artificial vascular grafts. In this study, we aimed at developing a multifunctional vascular graft that provides not only good hemocompatibility but also in situ rapid endothelialization. Herein, a vascular graft (inner diameter ∼2 mm) was fabricated by electrospinning with poly(lactic acid-co-caprolactone) and gelatin, and then biofunctionalized with antithrombotic peptide with sequence LTFPRIVFVLG (ACH11) and cell adhesion peptide with sequence CAG through adhesive poly(dopamine) coating. We developed this graft with the synergistic properties of low thrombogenicity and rapid endothelialization. The successful grafting of both CAG and ACH11 peptides was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The surface micromorphology of the modified surfaces was observed by field emission scanning electron microscopy. Our results demonstrated that the multifunctional surface suppressed the denaturation of absorbed fibrinogen, hindered coagulation factor Xa activation, and inhibited platelet adhesion and aggregation. Importantly, this modified surface could selectively enhance endothelial cells adhesion, proliferation and release of nitric oxide. Upon in vivo implantation of 6 weeks, the multifunctional vascular graft showed improved patency and superior vascular endothelialization. Overall, the results effectively demonstrated that the co-immobilization of ACH11 and CAG provided a promising method for the improvement of hemocompatibility and endothelialization of vascular grafts. STATEMENT OF SIGNIFICANCE: Electrospun small-caliber vascular grafts are increasingly used to treat cardiovascular diseases. Despite their success related to their good biodegradation and mechanical strength, they have some drawbacks, such as low hemocompatibility and endothelialization. The single-function ligands are insufficient to modify surface with both good hemocompatibility and rapid endothelialization simultaneously. Therefore, we functionalized electrospun vascular graft by novel antithrombotic peptide and cell-adhesive peptide to construct superior anticoagulation and ECs-selective adhesion surface in present study. The multifunctional vascular grafts benefit for high long-term patency and rapid endothelialization.
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Thakur R, Chattopadhyay P, Mukherjee AK. The wound healing potential of a pro-angiogenic peptide purified from Indian Russell's viper (Daboia russelii) venom. Toxicon 2019; 165:78-82. [PMID: 31054289 DOI: 10.1016/j.toxicon.2019.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/08/2019] [Accepted: 04/22/2019] [Indexed: 12/18/2022]
Abstract
The cutaneous wound healing property of a pro-angiogenic venom peptide (RVVAP) in a cream-based formulation was evaluated using the excision wound healing model on Wistar strain rats. The wound healing potency and modest antibacterial activity of RVVAP was enhanced significantly (p < 0.05) when combined with Aloe vera extract. RVVAP was also found to be non-toxic at the tested dose of 1.0 mg/kg. Nevertheless, the release of inflammatory cytokines such as IL-1, IL-6, IL-10, and TNF-α in RVVAP-treated mice was suppressed, compared to the untreated controls. This is the first report assessing the wound healing potential of a low-molecular mass, non-enzymatic, pro-angiogenic peptide purified from snake venom.
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Affiliation(s)
- Rupamoni Thakur
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur-784 028, Assam, India; Department of Life Sciences, Dibrugarh University, Dibrugarh- 786 004, Assam, India
| | - Pronobesh Chattopadhyay
- Division of Pharmaceutical Technology, Defense Research Laboratory, Tezpur- 784 001, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur-784 028, Assam, India.
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Kalita B, Mukherjee AK. Recent advances in snake venom proteomics research in India: a new horizon to decipher the geographical variation in venom proteome composition and exploration of candidate drug prototypes. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s42485-019-00014-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhao J, Bai L, Muhammad K, Ren XK, Guo J, Xia S, Zhang W, Feng Y. Construction of Hemocompatible and Histocompatible Surface by Grafting Antithrombotic Peptide ACH11 and Hydrophilic PEG. ACS Biomater Sci Eng 2019; 5:2846-2857. [DOI: 10.1021/acsbiomaterials.9b00431] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jing Zhao
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Lingchuang Bai
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Khan Muhammad
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
| | - Xiang-kui Ren
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Jintang Guo
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Shihai Xia
- Department of Hepatopancreatobiliary and Splenic Medicine, Affiliated Hospital, Logistics University of People’s Armed Police Force, 220 Chenglin Road, Tianjin 300162, China
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology, Logistics University of Chinese People’s Armed Police Force, Tianjin 300309, China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
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Abdelhedi O, Khemakhem H, Nasri R, Jridi M, Mora L, Ben Amor I, Jamoussi K, Toldrá F, Gargouri J, Nasri M. Assessment of Cholesterol, Glycemia Control and Short- and Long-Term Antihypertensive Effects of Smooth Hound Viscera Peptides in High-Salt and Fructose Diet-Fed Wistar Rats. Mar Drugs 2019; 17:E194. [PMID: 30934709 PMCID: PMC6520678 DOI: 10.3390/md17040194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 12/22/2022] Open
Abstract
In this study, the antihypertensive activity of Purafect®-smooth hound viscera protein hydrolysate (VPH) and its peptide fraction with molecular weight (MW) below 1 kDa (VPH-I) was investigated. In addition, the lipase inhibitory activity, as well the anticoagulant potential, in vitro, were assessed. The antihypertensive effects of VPH and VPH-I were studied during 24 h (short-term effect) and 30 days (long-term effect) using high-salt (18% NaCl) and -fructose (10%) diet (HSFD)-induced hypertension. Data showed that, 4 h post-administration of VPH and VPH-I (200 mg/kg BW), the systolic blood pressure of rats was reduced by about 6 and 9 mmHg, respectively. These effects were similar to that obtained with Captopril (~9 mmHg at t = 4 h). On the other hand, exposing the rats to daily to HSFD, coupled to the administration of viscera peptides, was found to attenuate hypertension. In addition, the proteins' treatments were able to correct lipid and glycemic disorders, by reducing the total cholesterol and triglyceride contents and resorting to the plasma glucose level, compared to the HSFD group. Overall, the present findings demonstrated the preventive effect of VPH-peptides from hypertension complications, as a result of their biological properties.
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Affiliation(s)
- Ola Abdelhedi
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia.
| | - Hana Khemakhem
- Laboratory of Biochemistry, CHU HediChaker, University of Sfax, Sfax 3000, Tunisia.
| | - Rim Nasri
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia.
- Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia.
| | - Mourad Jridi
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia.
- Higher Institute of Biotechnology of Beja, University of Jendouba, Beja 9000, Tunisia.
| | - Leticia Mora
- Instituto de Agroquímica y Tecnologíade Alimentos (CSIC), Avenue Agustín Escardino 7, Paterna, 46980 Valencia, Spain.
| | - Ikram Ben Amor
- Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, Sfax 3003, Tunisia.
| | - Kamel Jamoussi
- Laboratory of Biochemistry, CHU HediChaker, University of Sfax, Sfax 3000, Tunisia.
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnologíade Alimentos (CSIC), Avenue Agustín Escardino 7, Paterna, 46980 Valencia, Spain.
| | - Jalel Gargouri
- Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, Sfax 3003, Tunisia.
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia.
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Gogoi D, Pal A, Chattopadhyay P, Paul S, Deka RC, Mukherjee AK. First Report of Plant-Derived β-Sitosterol with Antithrombotic, in Vivo Anticoagulant, and Thrombus-Preventing Activities in a Mouse Model. JOURNAL OF NATURAL PRODUCTS 2018; 81:2521-2530. [PMID: 30406661 DOI: 10.1021/acs.jnatprod.8b00574] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Inhibitors of thrombin, a key enzyme in the blood coagulation cascade, are of great interest because of their selective specificity and effectiveness in anticoagulation therapy against cardiovascular disorders. The natural soybean phytosterol, β-sitosterol (BSS) demonstrated anticoagulant activity by dose-dependent inhibition of thrombin in an uncompetitive manner with a Ki value of 0.267 μM as well as by partial inhibition of thrombin-catalyzed platelet aggregation with a half-maximal inhibitory concentration (IC50) value of 10.45 ± 2.88 μM against platelet-rich plasma and 9.2 ± 1.2 μM against washed platelets. An in silico study indicated binding of BSS to thrombin, which was experimentally verified by spectrofluorometric and isothermal calorimetric analyses. Under in vitro conditions, BSS demonstrated thrombolytic activity by activating plasminogen, albeit it is devoid of protease (fibrinogenolytic) activity. BSS was noncytotoxic to mammalian cells, nonhemolytic, demonstrated its in vivo anticoagulant activity when administered orally, and inhibited k-carrageen-induced thrombus formation in the tails of mice. Our results suggest that dietary supplementation of BSS may help to prevent thrombosis-associated cardiovascular disorders.
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Affiliation(s)
| | - Anirban Pal
- In-vivo Testing Laboratory, Molecular Bioprospection Department , Central Institute of Medicinal and Aromatic Plants , Lucknow , India
| | - Pronobesh Chattopadhyay
- Division of Pharmaceutical Technology , Defense Research Laboratory , Tezpur , Assam , India
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Anticoagulant mechanism, pharmacological activity, and assessment of preclinical safety of a novel fibrin(ogen)olytic serine protease from leaves of Leucas indica. Sci Rep 2018; 8:6210. [PMID: 29670183 PMCID: PMC5906637 DOI: 10.1038/s41598-018-24422-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 03/26/2018] [Indexed: 01/03/2023] Open
Abstract
The harnessing of medicinal plants containing a plethora of bioactive molecules may lead to the discovery of novel, potent and safe therapeutic agents to treat thrombosis-associated cardiovascular diseases. A 35 kDa (m/z 34747.5230) serine protease (lunathrombase) showing fibrin(ogen)olytic activity and devoid of N- and O- linked oligosaccharides was purified from an extract of aqueous leaves from L. indica. The LC-MS/MS analysis, de novo sequencing, secondary structure, and amino acid composition determination suggested the enzyme’s novel characteristic. Lunathrombase is an αβ-fibrinogenase, demonstrating anticoagulant activity with its dual inhibition of thrombin and FXa by a non-enzymatic mechanism. Spectrofluorometric and isothermal calorimetric analyses revealed the binding of lunathrombase to fibrinogen, thrombin, and/or FXa with the generation of endothermic heat. It inhibited collagen/ADP/arachidonic acid-induced mammalian platelet aggregation, and demonstrated antiplatelet activity via COX-1 inhibition and the upregulation of the cAMP level. Lunathrombase showed in vitro thrombolytic activity and was not inhibited by endogenous protease inhibitors α2 macroglobulin and antiplasmin. Lunathrombase was non-cytotoxic to mammalian cells, non-hemolytic, and demonstrated dose-dependent (0.125–0.5 mg/kg) in vivo anticoagulant and plasma defibrinogenation activities in a rodent model. Lunathrombase (10 mg/kg) did not show toxicity or adverse pharmacological effects in treated animals.
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21
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Bora B, Gogoi D, Tripathy D, Kurkalang S, Ramani S, Chatterjee A, Mukherjee AK. The N-terminal-truncated recombinant fibrin(ogen)olytic serine protease improves its functional property, demonstrates in vivo anticoagulant and plasma defibrinogenation activity as well as pre-clinical safety in rodent model. Int J Biol Macromol 2017; 111:462-474. [PMID: 29292153 DOI: 10.1016/j.ijbiomac.2017.12.140] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/26/2017] [Indexed: 12/13/2022]
Abstract
An N-terminal truncated fibrino(geno)lytic serine protease gene encoding a ~42kDa protein from Bacillus cereus strain AB01 was produced by error prone PCR, cloned into pET19b vector, and expressed in E5 coli BL21 DE3 cells. The deletion of 24 amino acid residues from N-terminal of wild-type Bacifrinase improves the catalytic activity of [Bacifrinase (ΔN24)]. The anticoagulant potency of [Bacifrinase (ΔN24)] was comparable to Nattokinase and Warfarin and results showed that its anticoagulant action is contributed by progressive defibrinogenation and antiplatelet activities. Nonetheless, at the tested concentration of 2.0μM [Bacifrinase (ΔN24)] did not show in vitro cytotoxicity or chromosomal aberrations on human embryonic kidney cells-293 (HEK-293) and human peripheral blood lymphocytes (HPBL) cells. [Bacifrinase (ΔN24)], at a dose of 2mg/kg, did not show toxicity, adverse pharmacological effects, tissue necrosis or hemorrhagic effect after 72h of its administration in Swiss albino mice. However, at the tested doses of 0.125 to 0.5mg/kg, it demonstrated significant in anticoagulant effect as well as defibrinogenation after 6h of administration in mice. We propose that [Bacifrinase (ΔN24)] may serve as prototype for the development of potent drug to prevent hyperfibrinogenemia related disorders.
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Affiliation(s)
- Bandana Bora
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur 784028, Assam, India
| | - Debananda Gogoi
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur 784028, Assam, India
| | - Debabrata Tripathy
- Department of Biotechnology & Bioinformatics, North Eastern Hill University, Shillong 793022, India
| | - Sillarine Kurkalang
- Department of Biotechnology & Bioinformatics, North Eastern Hill University, Shillong 793022, India
| | - Sheetal Ramani
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur 784028, Assam, India
| | - Anupam Chatterjee
- Department of Biotechnology & Bioinformatics, North Eastern Hill University, Shillong 793022, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Sciences, Tezpur University, Tezpur 784028, Assam, India.
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22
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Costa RM, Albuquerque WWC, Silva MC, Paula RAD, Melo MS, Oliva ML, Porto ALF. Can γ-radiation modulate hemagglutinating and anticoagulant activities of PpyLL, a lectin from Phthirusa pyrifolia? Int J Biol Macromol 2017; 104:125-136. [DOI: 10.1016/j.ijbiomac.2017.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/01/2017] [Accepted: 06/02/2017] [Indexed: 10/19/2022]
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Lee W, Lee H, Kim MA, Choi J, Kim KM, Hwang JS, Na M, Bae JS. Evaluation of novel factor Xa inhibitors from Oxya chinensis sinuosa with anti-platelet aggregation activity. Sci Rep 2017; 7:7934. [PMID: 28801633 PMCID: PMC5554137 DOI: 10.1038/s41598-017-08330-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/07/2017] [Indexed: 12/22/2022] Open
Abstract
The edible grasshopper Oxya chinensis sinuosa is consumed worldwide for its various medicinal effects. The purpose of this study was to investigate potential bioactive antithrombotic and antiplatelet compounds from O. chinensis sinuosa. Five N-acetyldopamine dimers (1–5) were isolated from O. chinensis sinuosa and compounds 1 and 2 were identified as new chemicals with chiral centers at H-2 and H-3 of the benzo-1,4-dioxane structure. Compounds 1–4 were found to have both FXa and platelet aggregation inhibitory activities. These compounds inhibited the catalytic activity of FXa toward its synthetic substrate, S-2222, by noncompetitive inhibition, and inhibited platelet aggregation induced by ADP and U46619. Furthermore, compounds 1–4 showed enhanced antithrombotic effects, which were assessed using in vivo models of pulmonary embolism and arterial thrombosis. The isolated compounds also showed anticoagulant effects in mice. However, compounds 1–4 did not prolong bleeding time in mice, as shown by tail clipping. N-Acetyldopamine dimers, including two new stereoisomers 1 and 2, are novel antithrombotic compounds showing both FXa inhibition and antiplatelet aggregation activity with a low bleeding risk. Collectively, these results suggest that compounds 1–4 could serve as candidates and provide scaffolds for development of new antithrombotic drugs.
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Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - HeeSeung Lee
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Mi-Ae Kim
- Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun, 55365, Republic of Korea
| | - Joonhyeok Choi
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kyung-Min Kim
- Division of Plant Biosciences, School of Applied BioSciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun, 55365, Republic of Korea
| | - MinKyun Na
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Lee W, Ku SK, Kim MA, Bae JS. Anti-factor Xa activities of zingerone with anti-platelet aggregation activity. Food Chem Toxicol 2017; 105:186-193. [PMID: 28414123 DOI: 10.1016/j.fct.2017.04.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 04/06/2017] [Accepted: 04/09/2017] [Indexed: 02/06/2023]
Abstract
Zingerone (ZGR), a phenolic alkanone found in Zingiber officinale, has been reported to have various pharmacological activities such as anti-inflammatory, anti-apoptotic, and protecting myocardial infarction and irritable bowel disorder. The aim was to identify the unreported bioactive anti-factor Xa (FXa) and anti-platelet activities of ZGR. ZGR was evaluated for their anti-FXa and anti-platelet aggregation properties by monitoring clotting time, platelet aggregation, FXa activity and production, and thrombus formation. ZGR reduced activated partial thromboplastin time and it inhibited the catalytic activity of FXa toward its substrate S-2222 in a noncompetitive inhibition model and inhibited platelet aggregation induced by adenosine diphosphate (ADP) and U46619 (not thrombin). However, ZGR did not prolong bleeding time in mice, as shown by tail clipping. ZGR also inhibited ADP- and U46619- induced phosphorylation of myristolated alanine-rich C-kinase substrate (MARCKS) and the expressions of P-selectin and PAC-1 in platelets. In an animal model of arterial and pulmonary thrombosis, ZGR showed enhanced antithrombotic effects. ZGR also elicited anticoagulant effects in mice. Our results reveal that ZGR is an antithrombotic compound with both FXa inhibitory and anti-platelet aggregation activities. Collectively, these results show that ZGR could serve as candidates and provide scaffolds for the development of new anti-FXa and anti-platelet drugs.
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Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sae-Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Mi-Ae Kim
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun 55365, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea.
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25
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Thakur R, Mukherjee AK. Pathophysiological significance and therapeutic applications of snake venom protease inhibitors. Toxicon 2017; 131:37-47. [DOI: 10.1016/j.toxicon.2017.03.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 03/06/2017] [Accepted: 03/09/2017] [Indexed: 12/11/2022]
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Kalita B, Patra A, Mukherjee AK. Unraveling the Proteome Composition and Immuno-profiling of Western India Russell's Viper Venom for In-Depth Understanding of Its Pharmacological Properties, Clinical Manifestations, and Effective Antivenom Treatment. J Proteome Res 2017; 16:583-598. [PMID: 27936776 DOI: 10.1021/acs.jproteome.6b00693] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The proteome composition of western India (WI) Russell's viper venom (RVV) was correlated with pharmacological properties and pathological manifestations of RV envenomation. Proteins in the 5-19 and 100-110 kDa mass ranges were the most predominate (∼35.1%) and least abundant (∼3.4%) components, respectively, of WI RVV. Non-reduced SDS-PAGE indicated the occurrence of multiple subunits, non-covalent oligomers, self-aggregation, and/or interactions among the RVV proteins. A total of 55 proteins belonging to 13 distinct snake venom families were unambiguously identified by ESI-LC-MS/MS analysis. Phospholipase A2 (32.5%) and Kunitz-type serine protease inhibitors (12.5%) represented the most abundant enzymatic and non-enzymatic proteins, respectively. However, ATPase, ADPase, and hyaluronidase, detected by enzyme assays, were not identified by proteomic analysis owing to limitations in protein database deposition. Several biochemical and pharmacological properties of WI RVV were also investigated. Neurological symptoms exhibited by some RV-bite patients in WI may be correlated to the presence of neurotoxic phospholipase A2 enzymes and Kunitz-type serine protease inhibitor complex in this venom. Monovalent antivenom was found to be better than polyvalent antivenom in immuno-recognition and neutralization of the tested pharmacological properties and enzyme activities of WI RVV; nevertheless, both antivenoms demonstrated poor cross-reactivity and neutralization of pharmacological activities shown by low-molecular-mass proteins (<18 kDa) of this venom.
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Affiliation(s)
- Bhargab Kalita
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University , Tezpur 784028, Assam, India
| | - Aparup Patra
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University , Tezpur 784028, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University , Tezpur 784028, Assam, India
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Mechanism of apoptosis induction in human breast cancer MCF-7 cell by Ruviprase, a small peptide from Daboia russelii russelii venom. Chem Biol Interact 2016; 258:297-304. [PMID: 27613483 DOI: 10.1016/j.cbi.2016.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 08/23/2016] [Accepted: 09/06/2016] [Indexed: 12/13/2022]
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28
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Mukherjee AK, Dutta S, Kalita B, Jha DK, Deb P, Mackessy SP. Structural and functional characterization of complex formation between two Kunitz-type serine protease inhibitors from Russell's Viper venom. Biochimie 2016; 128-129:138-47. [PMID: 27523780 DOI: 10.1016/j.biochi.2016.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 08/10/2016] [Indexed: 11/19/2022]
Abstract
Snake venom Kunitz-type serine protease inhibitors (KSPIs) exhibit various biological functions including anticoagulant activity. This study elucidates the occurrence and subunit stoichiometry of a putative complex formed between two KSPIs (Rusvikunin and Rusvikunin-II) purified from the native Rusvikunin complex of Pakistan Russell's Viper (Daboia russelii russelii) venom (RVV). The protein components of the Rusvikunin complex were identified by LC-MS/MS analysis. The non-covalent interaction between two major components of the complex (Rusvikunin and Rusvikunin-II) at 1:2 stoichiometric ratio to form a stable complex was demonstrated by biophysical techniques such as spectrofluorometric, classical gel-filtration, equilibrium gel-filtration, circular dichroism (CD), dynamic light scattering (DLS), RP-HPLC and SDS-PAGE analyses. CD measurement showed that interaction between Rusvikunin and Rusvikunin-II did not change their overall secondary structure; however, the protein complex exhibited enhanced hydrodynamic diameter and anticoagulant activity as compared to the individual components of the complex. This study may lay the foundation for understanding the basis of protein complexes in snake venoms and their role in pathophysiology of snakebite.
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Affiliation(s)
- Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India; School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639-0017, USA.
| | - Sumita Dutta
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India
| | - Bhargab Kalita
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India
| | - Deepak K Jha
- Advanced Functional Material Laboratory, Department of Physics, Tezpur University, Tezpur 784028, Assam, India
| | - Pritam Deb
- Advanced Functional Material Laboratory, Department of Physics, Tezpur University, Tezpur 784028, Assam, India
| | - Stephen P Mackessy
- School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639-0017, USA
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Gou M, Wang L, Liu X. Anticoagulant activity of a natural protein purified from Hypomesus olidus. Nat Prod Res 2016; 31:1168-1171. [DOI: 10.1080/14786419.2016.1222382] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mengxing Gou
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, P.R. China
| | - Liyan Wang
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, P.R. China
| | - Xuejun Liu
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, P.R. China
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Mukherjee AK, Kalita B, Mackessy SP. A proteomic analysis of Pakistan Daboia russelii russelii venom and assessment of potency of Indian polyvalent and monovalent antivenom. J Proteomics 2016; 144:73-86. [PMID: 27265321 DOI: 10.1016/j.jprot.2016.06.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/14/2016] [Accepted: 06/01/2016] [Indexed: 12/19/2022]
Abstract
UNLABELLED To address the dearth of knowledge on the biochemical composition of Pakistan Russell's Viper (Daboia russelii russelii) venom (RVV), the venom proteome has been analyzed and several biochemical and pharmacological properties of the venom were investigated. SDS-PAGE (reduced) analysis indicated that proteins/peptides in the molecular mass range of ~56.0-105.0kDa, 31.6-51.0kDa, 15.6-30.0kDa, 9.0-14.2kDa and 5.6-7.2kDa contribute approximately 9.8%, 12.1%, 13.4%, 34.1% and 30.5%, respectively of Pakistan RVV. Proteomics analysis of gel-filtration peaks of RVV resulted in identification of 75 proteins/peptides which belong to 14 distinct snake venom protein families. Phospholipases A2 (32.8%), Kunitz type serine protease inhibitors (28.4%), and snake venom metalloproteases (21.8%) comprised the majority of Pakistan RVV proteins, while 11 additional families accounted for 6.5-0.2%. Occurrence of aminotransferase, endo-β-glycosidase, and disintegrins is reported for the first time in RVV. Several of RVV proteins/peptides share significant sequence homology across Viperidae subfamilies. Pakistan RVV was well recognized by both the polyvalent (PAV) and monovalent (MAV) antivenom manufactured in India; nonetheless, immunological cross-reactivity determined by ELISA and neutralization of pro-coagulant/anticoagulant activity of RVV and its fractions by MAV surpassed that of PAV. BIOLOGICAL SIGNIFICANCE The study establishes the proteome profile of the Pakistan RVV, thereby indicating the presence of diverse proteins and peptides that play a significant role in the pathophysiology of RVV bite. Further, the proteomic findings will contribute to understand the variation in venom composition owing to different geographical location and identification of pharmacologically important proteins in Pakistan RVV.
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Affiliation(s)
- Ashis K Mukherjee
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India; School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639-0017, USA.
| | - Bhargab Kalita
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India
| | - Stephen P Mackessy
- School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639-0017, USA.
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Sharma M, Iyer JK, Shih N, Majumder M, Mattaparthi VSK, Mukhopadhyay R, Doley R. Daboxin P, a Major Phospholipase A2 Enzyme from the Indian Daboia russelii russelii Venom Targets Factor X and Factor Xa for Its Anticoagulant Activity. PLoS One 2016; 11:e0153770. [PMID: 27089306 PMCID: PMC4835082 DOI: 10.1371/journal.pone.0153770] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/04/2016] [Indexed: 11/21/2022] Open
Abstract
In the present study a major protein has been purified from the venom of Indian Daboia russelii russelii using gel filtration, ion exchange and Rp-HPLC techniques. The purified protein, named daboxin P accounts for ~24% of the total protein of the crude venom and has a molecular mass of 13.597 kDa. It exhibits strong anticoagulant and phospholipase A2 activity but is devoid of any cytotoxic effect on the tested normal or cancerous cell lines. Its primary structure was deduced by N-terminal sequencing and chemical cleavage using Edman degradation and tandem mass spectrometry. It is composed of 121 amino acids with 14 cysteine residues and catalytically active His48 -Asp49 pair. The secondary structure of daboxin P constitutes 42.73% of α-helix and 12.36% of β-sheet. It is found to be stable at acidic (pH 3.0) and neutral pH (pH 7.0) and has a Tm value of 71.59 ± 0.46°C. Daboxin P exhibits anticoagulant effect under in-vitro and in-vivo conditions. It does not inhibit the catalytic activity of the serine proteases but inhibits the activation of factor X to factor Xa by the tenase complexes both in the presence and absence of phospholipids. It also inhibits the tenase complexes when active site residue (His48) was alkylated suggesting its non-enzymatic mode of anticoagulant activity. Moreover, it also inhibits prothrombinase complex when pre-incubated with factor Xa prior to factor Va addition. Fluorescence emission spectroscopy and affinity chromatography suggest the probable interaction of daboxin P with factor X and factor Xa. Molecular docking analysis reveals the interaction of the Ca+2 binding loop; helix C; anticoagulant region and C-terminal region of daboxin P with the heavy chain of factor Xa. This is the first report of a phospholipase A2 enzyme from Indian viper venom which targets both factor X and factor Xa for its anticoagulant activity.
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Affiliation(s)
- Maitreyee Sharma
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-784028, Assam, India
| | - Janaki Krishnamurthy Iyer
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Norrapat Shih
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Munmi Majumder
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-784028, Assam, India
| | | | - Rupak Mukhopadhyay
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-784028, Assam, India
| | - Robin Doley
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-784028, Assam, India
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Thakur R, Chattopadhyay P, Ghosh SS, Mukherjee AK. Elucidation of procoagulant mechanism and pathophysiological significance of a new prothrombin activating metalloprotease purified from Daboia russelii russelii venom. Toxicon 2015; 100:1-12. [PMID: 25817001 DOI: 10.1016/j.toxicon.2015.03.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 03/19/2015] [Accepted: 03/25/2015] [Indexed: 11/16/2022]
Abstract
The procoagulant proteases present in Russell's Viper venom (RVV) are responsible for promoting consumption coagulopathy in victims. In this study, a procoagulant metalloprotease (Rusviprotease) possessing prothrombin activating and α-fibrinogenase properties has been purified and characterized from RVV. Rusviprotease is a 26.8 kDa glycoprotein which also exists in other multimeric forms. The peptide mass fingerprinting and secondary structure analyses of Rusviprotease revealed its similarity with snake venom prothrombin activators and metalloproteases. Similar to group A prothrombin activators, Rusviprotease cleaved prothrombin independent of any co-factor requirement generating meizothrombin which is further cleaved to form thrombin. The Km and Vmax values of Rusviprotease towards prothrombin were determined to be 1.73 μM, and 153.5 nM thrombin generated/min/μmoles of Rusviprotease, respectively. The Km and Vmax values of Rusviprotease towards fibrinogen were calculated to be 3.14 μM and 78.7 nmol/min, respectively. Spectrofluorometric study provided the evidence of interaction between Rusviprotease and factor Xa with a Kd value of 6.64 nM. This interaction augmented the prothrombin activating property of the factor Xa-prothrombinase-Rusviprotease complex by 2.5 fold. Intravenous injection of Rusviprotease to BALB/c mice (0.1 mg/kg) resulted in in vivo defibrinogenation rendering the blood incoagulable. In conclusion, Rusviprotease is the first example of a prothrombin activator with fibrinogenolytic property purified from Daboia russelii russelii venom.
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Affiliation(s)
- Rupamoni Thakur
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Science, Tezpur University, Tezpur 784 028, Assam, India
| | - Pronobesh Chattopadhyay
- Division of Pharmaceutical Technology, Defense Research Laboratory, Tezpur 784 001, Assam, India
| | - Siddharth S Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati 781 039, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Science, Tezpur University, Tezpur 784 028, Assam, India.
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Chen M, Ye X, Ming X, Chen Y, Wang Y, Su X, Su W, Kong Y. A Novel Direct Factor Xa Inhibitory Peptide with Anti-Platelet Aggregation Activity from Agkistrodon acutus Venom Hydrolysates. Sci Rep 2015; 5:10846. [PMID: 26035670 PMCID: PMC4451689 DOI: 10.1038/srep10846] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/05/2015] [Indexed: 11/15/2022] Open
Abstract
Snake venom is a natural substance that contains numerous bioactive proteins and peptides, nearly all of which have been identified over the last several decades. In this study, we subjected snake venom to enzymatic hydrolysis to identify previously unreported bioactive peptides. The novel peptide ACH-11 with the sequence LTFPRIVFVLG was identified with both FXa inhibition and anti-platelet aggregation activities. ACH-11 inhibited the catalytic function of FXa towards its substrate S-2222 via a mixed model with a Ki value of 9.02 μM and inhibited platelet aggregation induced by ADP and U46619 in a dose-dependent manner. Furthermore, ACH-11 exhibited potent antithrombotic activity in vivo. It reduced paralysis and death in an acute pulmonary thrombosis model by 90% and attenuated thrombosis weight in an arterio-venous shunt thrombosis model by 57.91%, both at a dose of 3 mg/kg. Additionally, a tail cutting bleeding time assay revealed that ACH-11 did not prolong bleeding time in mice at a dose of 3 mg/kg. Together, our results reveal that ACH-11 is a novel antithrombotic peptide exhibiting both FXa inhibition and anti-platelet aggregation activities, with a low bleeding risk. We believe that it could be a candidate or lead compound for new antithrombotic drug development.
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Affiliation(s)
- Meimei Chen
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Xiaohui Ye
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Xin Ming
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yahui Chen
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Ying Wang
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Xingli Su
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Wen Su
- School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China
| | - Yi Kong
- 1] School of Life Science &Technology, China Pharmaceutical University, 24 Tong Jia Street, Nanjing 210009, PR China [2] State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
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Isolation and Characterization of a Novel Antithrombotic Peptide from Enzymatic Hydrolysate of Agkistrodon acutus Venom. Int J Pept Res Ther 2015. [DOI: 10.1007/s10989-015-9463-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Dutta S, Gogoi D, Mukherjee AK. Anticoagulant mechanism and platelet deaggregation property of a non-cytotoxic, acidic phospholipase A2 purified from Indian cobra (Naja naja) venom: inhibition of anticoagulant activity by low molecular weight heparin. Biochimie 2015; 110:93-106. [PMID: 25576831 DOI: 10.1016/j.biochi.2014.12.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 12/31/2014] [Indexed: 10/24/2022]
Abstract
In the present study, anticoagulant and platelet modulating activities of an acidic phospholipase A2 (NnPLA2-I) purified from Indian cobra Naja naja venom was investigated. The NnPLA2-I displayed a mass of 15.2 kDa and 14,186.0 Da when analyzed by SDS-PAGE and MALDI-TOF-MS, respectively. Peptide mass fingerprinting analysis of the NnPLA2-I showed its significant similarity with phospholipase A2 enzymes purified from cobra venom. BLAST analysis of one tryptic peptide sequence of NnPLA2-I demonstrated putative conserved domains of the PLA2-like superfamily. The Km and Vmax values of NnPLA2-I toward hydrolysis of its most preferred substrate-phosphotidylcholine (PC)-were determined to be 0.72 mM and 29.3 μmol min(-1) mg(-1), respectively. The anticoagulant activity of NnPLA2-I was found to be higher than the anticoagulant activity of heparin/AT-III or warfarin. The histidine modifying reagent, monovalent and polyvalent antivenom differentially inhibited the catalytic and anticoagulant activities of NnPLA2-I. Low molecular weight heparin did not inhibit the catalytic and platelet deaggregation activity of NnPLA2-I, albeit its anticoagulant activity was significantly reduced. The NnPLA2-I showed a non-enzymatic, mixed inhibition of thrombin with a Ki value of 9.3 nM. Heparin significantly decreased, with an IC50 value of 15.23 mIU, the thrombin inhibitory activity of NnPLA2-I. The NnPLA2-I uniquely increased the amidolytic activity of FXa without influencing its prothrombin activating property. NnPLA2-I showed dose-dependent deaggregation of platelet rich plasma (PRP) and inhibited the collagen and thrombin-induced aggregation of PRP. However, deaggregation of washed platelets by NnPLA2-I demonstrated in presence of PC or platelet poor plasma. Alkylation of histidine residue of NnPLA2-I resulted in 95% and 21% reduction of its platelet deaggregation and platelet binding properties, respectively. NnPLA2-I did not show cytotoxicity against human glioblastoma U87MG cells, bactericidal or hemolytic activity. The future therapeutic application of NnPLA2-I for treatment and prevention of cardiovascular disorders is therefore suggested.
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Affiliation(s)
- Sumita Dutta
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Science, Tezpur University, Tezpur 784028, Assam, India
| | - Debananda Gogoi
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Science, Tezpur University, Tezpur 784028, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, School of Science, Tezpur University, Tezpur 784028, Assam, India.
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