1
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Dias NB, de Souza BM, Cid-Alda F, Dorce VAC, Cocchi FK, Palma MS. Profiling the Linear Peptides of Venom from the Brazilian Scorpion Tityus serrulatus: Structural and Functional Characterization. JOURNAL OF NATURAL PRODUCTS 2024; 87:480-490. [PMID: 38408354 DOI: 10.1021/acs.jnatprod.3c01085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Scorpion venoms are a rich source of bioactive peptides, most of which are neurotoxic, with 30 to 70 amino acid residues in their sequences. There are a scarcity of reports in the literature concerning the short linear peptides found in scorpion venoms. This type of peptide toxin may be selectively extracted from the venom using 50% (v/v) acetonitrile. The use of LC-MS and MS/MS enabled the detection of 12 bioactive short linear peptides, of which six were identified as cryptides. These peptides were shown to be multifunctional, causing hemolysis, mast cell degranulation and lysis, edema, pain, and anxiety, increasing the complexity of the envenomation mechanism. Apparently, the natural functions of these peptide toxins are to induce inflammation and discomfort in the victims of scorpion stings.
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Affiliation(s)
- Nathalia Baptista Dias
- Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera (UFRO), Temuco 4811230, Chile
| | - Bibiana Monson de Souza
- Department of Basic and Applied Biology, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), São Paulo 13506-900, Brazil
| | - Fernanda Cid-Alda
- Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera (UFRO), Temuco 4811230, Chile
| | | | - Fernando Kamimura Cocchi
- Department of Basic and Applied Biology, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), São Paulo 13506-900, Brazil
| | - Mario Sergio Palma
- Department of Basic and Applied Biology, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), São Paulo 13506-900, Brazil
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2
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Stephani J, Gerhards L, Khairalla B, Solov’yov IA, Brand I. How do Antimicrobial Peptides Interact with the Outer Membrane of Gram-Negative Bacteria? Role of Lipopolysaccharides in Peptide Binding, Anchoring, and Penetration. ACS Infect Dis 2024; 10:763-778. [PMID: 38259029 PMCID: PMC10862549 DOI: 10.1021/acsinfecdis.3c00673] [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: 12/05/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024]
Abstract
Gram-negative bacteria possess a complex structural cell envelope that constitutes a barrier for antimicrobial peptides that neutralize the microbes by disrupting their cell membranes. Computational and experimental approaches were used to study a model outer membrane interaction with an antimicrobial peptide, melittin. The investigated membrane included di[3-deoxy-d-manno-octulosonyl]-lipid A (KLA) in the outer leaflet and 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) in the inner leaflet. Molecular dynamics simulations revealed that the positively charged helical C-terminus of melittin anchors rapidly into the hydrophilic headgroup region of KLA, while the flexible N-terminus makes contacts with the phosphate groups of KLA, supporting melittin penetration into the boundary between the hydrophilic and hydrophobic regions of the lipids. Electrochemical techniques confirmed the binding of melittin to the model membrane. To probe the peptide conformation and orientation during interaction with the membrane, polarization modulation infrared reflection absorption spectroscopy was used. The measurements revealed conformational changes in the peptide, accompanied by reorientation and translocation of the peptide at the membrane surface. The study suggests that melittin insertion into the outer membrane affects its permeability and capacitance but does not disturb the membrane's bilayer structure, indicating a distinct mechanism of the peptide action on the outer membrane of Gram-negative bacteria.
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Affiliation(s)
- Justus
C. Stephani
- Institute
of Physics, Carl von Ossietzky University
of Oldenburg, 26111 Oldenburg, Germany
| | - Luca Gerhards
- Institute
of Physics, Carl von Ossietzky University
of Oldenburg, 26111 Oldenburg, Germany
| | - Bishoy Khairalla
- Department
of Chemistry, Carl von Ossietzky University
of Oldenburg, 26111 Oldenburg, Germany
| | - Ilia A. Solov’yov
- Institute
of Physics, Carl von Ossietzky University
of Oldenburg, 26111 Oldenburg, Germany
- Research
Center Neurosensory Science, Carl von Ossietzky
University of Oldenburg, 26111 Oldenburg, Germany
- CeNaD—Center
for Nanoscale Dynamics, Carl von Ossietzky
University of Oldenburg, 26111 Oldenburg, Germany
| | - Izabella Brand
- Department
of Chemistry, Carl von Ossietzky University
of Oldenburg, 26111 Oldenburg, Germany
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3
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Martins IBS, Viegas RG, Sanches MN, de Araujo AS, Leite VBP. Probing Mastoparan-like Antimicrobial Peptides Interaction with Model Membrane Through Energy Landscape Analysis. J Phys Chem B 2024; 128:163-171. [PMID: 38159056 DOI: 10.1021/acs.jpcb.3c05852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Antimicrobial Peptides (AMPs) have emerged as promising alternatives to conventional antibiotics due to their capacity to disrupt the lipid packing of bacterial cell membranes. This mechanism of action may prevent the development of resistance by bacteria. Understanding their role in lipid packing disruption and their structural properties upon interaction with bacterial membranes is highly desirable. In this study, we employed Molecular Dynamics simulations and the Energy Landscape Visualization Method (ELViM) to characterize and compare the conformational ensembles of mastoparan-like Polybia-MP1 and its analogous H-MP1, in which histidines replace lysine residues. Two situations were analyzed: (i) the peptides in their free state in an aqueous solution containing water and ions and (ii) the peptides spontaneously adsorbing onto an anionic lipid bilayer, used as a bacteria membrane mimetic. ELViM was used to project a single effective conformational phase space for both peptides, providing a comparative analysis. This projection enabled us to map the conformational ensembles of each peptide in an aqueous solution and assess the structural effects of substituting lysines with histidines in H-MP1. Furthermore, a single conformational phase space analysis was employed to describe structural changes during the adsorption process using the same framework. We show that ELViM provides a comprehensive analysis, able to identify discrepancies in the conformational ensembles of these peptides that may affect their affinity to the membrane and adsorption kinetics.
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Affiliation(s)
- Ingrid B S Martins
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, SP 15054-000, Brazil
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Rafael G Viegas
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, SP 15054-000, Brazil
- Federal Institute of Education, Science and Technology of São Paulo (IFSP), Catanduva, SP 15.808-305, Brazil
| | - Murilo N Sanches
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, SP 15054-000, Brazil
| | - Alexandre S de Araujo
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, SP 15054-000, Brazil
| | - Vitor B P Leite
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, SP 15054-000, Brazil
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4
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Rungsa P, Peigneur S, Jangpromma N, Klaynongsruang S, Tytgat J, Daduang S. In Silico and In Vitro Structure-Activity Relationship of Mastoparan and Its Analogs. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020561. [PMID: 35056876 PMCID: PMC8779355 DOI: 10.3390/molecules27020561] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 11/16/2022]
Abstract
Antimicrobial peptides are an important class of therapeutic agent used against a wide range of pathogens such as Gram-negative and Gram-positive bacteria, fungi, and viruses. Mastoparan (MpVT) is an α-helix and amphipathic tetradecapeptide obtained from Vespa tropica venom. This peptide exhibits antibacterial activity. In this work, we investigate the effect of amino acid substitutions and deletion of the first three C-terminal residues on the structure–activity relationship. In this in silico study, the predicted structure of MpVT and its analog have characteristic features of linear cationic peptides rich in hydrophobic and basic amino acids without disulfide bonds. The secondary structure and the biological activity of six designed analogs are studied. The biological activity assays show that the substitution of phenylalanine (MpVT1) results in a higher antibacterial activity than that of MpVT without increasing toxicity. The analogs with the first three deleted C-terminal residues showed decreased antibacterial and hemolytic activity. The CD (circular dichroism) spectra of these peptides show a high content α-helical conformation in the presence of 40% 2,2,2-trifluoroethanol (TFE). In conclusion, the first three C-terminal deletions reduced the length of the α-helix, explaining the decreased biological activity. MpVTs show that the hemolytic activity of mastoparan is correlated to mean hydrophobicity and mean hydrophobic moment. The position and spatial arrangement of specific hydrophobic residues on the non-polar face of α-helical AMPs may be crucial for the interaction of AMPs with cell membranes.
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Affiliation(s)
- Prapenpuksiri Rungsa
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand; (P.R.); (N.J.); (S.K.)
- Division of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Steve Peigneur
- Toxicology and Pharmacology, Campus Gasthuisberg, University of Leuven (KU Leuven), O&N 2, P.O. Box 922, Herestraat 49, 3000 Leuven, Belgium;
| | - Nisachon Jangpromma
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand; (P.R.); (N.J.); (S.K.)
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sompong Klaynongsruang
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand; (P.R.); (N.J.); (S.K.)
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jan Tytgat
- Toxicology and Pharmacology, Campus Gasthuisberg, University of Leuven (KU Leuven), O&N 2, P.O. Box 922, Herestraat 49, 3000 Leuven, Belgium;
- Correspondence: (J.T.); (S.D.)
| | - Sakda Daduang
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand; (P.R.); (N.J.); (S.K.)
- Division of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence: (J.T.); (S.D.)
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5
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Wasp Venom Peptide (Polybia MP-1) Shows Antimicrobial Activity Against Multi Drug Resistant Bacteria Isolated from Mastitic Cow Milk. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-021-10355-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Costa-Lotufo LV, Colepicolo P, Pupo MT, Palma MS. Bioprospecting macroalgae, marine and terrestrial invertebrates & their associated microbiota. BIOTA NEOTROPICA 2022. [DOI: 10.1590/1676-0611-bn-2022-1345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract The present review aims the discussion of the impact of the bioprospection initiative developed by the projects associated to BIOprospecTA, a subprogram of the program BIOTA, supported by FAPESP. This review brings a summary of the main results produced by the projects investigating natural products (NPs) from non-plants organisms, as examples of the success of this initiative, focusing on the progresses achieved by the projects related to NPs from macroalgae, marine invertebrates, arthropods and associated microorganisms. Macroalgae are one of the most studied groups in Brazil with the isolation of many bioactive compounds including lipids, carotenoids, phycocolloids, lectins, mycosporine-like amino acids and halogenated compounds. Marine invertebrates and associated microorganisms have been more systematically studied in the last thirty years, revealing unique compounds, with potent biological activities. The venoms of Hymenopteran insects were also extensively studied, resulting in the identification of hundreds of peptides, which were used to create a chemical library that contributed for the identification of leader models for the development of antifungal, antiparasitic, and anticancer compounds. The built knowledge of Hymenopteran venoms permitted the development of an equine hyperimmune serum anti honeybee venom. Amongst the microorganisms associated with insects the bioprospecting strategy was to understand the molecular basis of intra- and interspecies interactions (Chemical Ecology), translating this knowledge to possible biotechnological applications. The results discussed here reinforce the importance of BIOprospecTA program on the development of research with highly innovative potential in Brazil.
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7
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Shetab-Boushehri SMH, Hosseini A, Rafinejad J, Ebadollahi-Natanzi A, Shetab-Boushehri SV. Cytotoxic, necrotic, apoptotic, and autophagic properties of venom sac extract of Vespa orientalis in T47D and MCF10A breast cell lines. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.2007404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Asieh Hosseini
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Rafinejad
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Ebadollahi-Natanzi
- Medicinal Plants Department, Imam Khomeini Higher Education Center, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Seyed Vahid Shetab-Boushehri
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
- Ameretat Shimi Pharmaceutical Co, Tehran, Iran
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8
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V V, Achar RR, M.U H, N A, T YS, Kameshwar VH, Byrappa K, Ramadas D. Venom peptides - A comprehensive translational perspective in pain management. Curr Res Toxicol 2021; 2:329-340. [PMID: 34604795 PMCID: PMC8473576 DOI: 10.1016/j.crtox.2021.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 12/21/2022] Open
Abstract
Venom peptides have been evolving complex therapeutic interventions that potently and selectively modulate a range of targets such as ion channels, receptors, and signaling pathways of physiological processes making it potential therapeutic. Several venom peptides were deduced in vivo for clinical development targeting pain management, diabetes, cardiovascular diseases, antimicrobial activity. Several contributions have been detailed for a clear perspective for a better understanding of venomous animals, their venom, and their pharmacological effects. Here we unravel and summarize the recent advances in wide venom peptides across varieties of species for their therapeutics prospects.
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Affiliation(s)
- Vidya V
- K. S Hegde Medical Academy, NITTE (Deemed to be) University, Mangalore 575015, Karnataka, India
| | - Raghu Ram Achar
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education & Research, S.S. Nagar, Mysuru 570 015, Karnataka, India
| | - Himathi M.U
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education & Research, S.S. Nagar, Mysuru 570 015, Karnataka, India
| | - Akshita N
- Division of Biochemistry, School of Life Sciences, JSS Academy of Higher Education & Research, S.S. Nagar, Mysuru 570 015, Karnataka, India
| | - Yogish Somayaji T
- Department of Post Graduate Studies and Research in Biochemistry, St. Aloysius College (Autonomous), Mangalore 575003, Karnataka, India
| | - Vivek Hamse Kameshwar
- School of Natural Science, Adichunchanagiri University, B.G. Nagara-571448, Nangamangala, Mandya, India
- School of Natural Sciences, ACU-CRI, Adichunchanagiri University, BGSIT Campus, B.G. Nagara-571448, Nagamangala, Mandya, India
| | - K. Byrappa
- School of Natural Sciences, ACU-CRI, Adichunchanagiri University, BGSIT Campus, B.G. Nagara-571448, Nagamangala, Mandya, India
- Center for Material Science and Technology, Vijnana Bhavan, University of Mysore, Mysuru, Karnataka, India
| | - Dinesha Ramadas
- Adichunchanagiri Institute for Molecular Medicine, AIMS, Adichunchanagiri University, B.G. Nagara-571448, Nagamangala, Mandya, India
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9
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Muller JAI, Lawrence N, Chan LY, Harvey PJ, Elliott AG, Blaskovich MAT, Gonçalves JC, Galante P, Mortari MR, Toffoli-Kadri MC, Koehbach J, Craik DJ. Antimicrobial and Anticancer Properties of Synthetic Peptides Derived from the Wasp Parachartergus fraternus. Chembiochem 2021; 22:1415-1423. [PMID: 33244888 DOI: 10.1002/cbic.202000716] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/20/2020] [Indexed: 12/13/2022]
Abstract
Agelaia-MPI and protonectin are antimicrobial peptides isolated from the wasp Parachartergus fraternus that show antimicrobial and neuroactive activities. Previously, two analogues of these peptides, neuroVAL and protonectin-F, were designed to reduce nonspecific toxicity and improve potency. Here, the three-dimensional structures of neuroVAL, protonectin and protonectin-F were determined by using circular dichroism and NMR spectroscopy. Antibacterial, antifungal, cytotoxic and hemolytic activities were tested for the parent peptides and analogues. All peptides showed moderate antimicrobial activity against Gram-positive bacteria, with agelaia-MPI being the most active. Protonectin and protonectin-F were found to be toxic to cancerous and noncancerous cell lines. Internalization experiments revealed that these peptides accumulate inside both cell types. By contrast, neuroVAL was nontoxic to all tested cells and was able to enter cells without accumulating. In summary, neuroVAL has potential as a nontoxic cell-penetrating peptide, while protonectin-F needs further modification to realize its potential as an antitumor peptide.
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Affiliation(s)
- Jessica A I Muller
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia.,Laboratory of Pharmacology and Inflammation, FACFAN/Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Nicole Lawrence
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Lai Yue Chan
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Peta J Harvey
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Alysha G Elliott
- Institute for Molecular Bioscience, Centre for Superbug Solutions, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Mark A T Blaskovich
- Institute for Molecular Bioscience, Centre for Superbug Solutions, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Jacqueline C Gonçalves
- Laboratory of Neuropharmacology, IB/University of Brasilia, Federal District, Brasilia, 70910-900, Brazil
| | - Priscilla Galante
- Laboratory of Neuropharmacology, IB/University of Brasilia, Federal District, Brasilia, 70910-900, Brazil
| | - Marcia R Mortari
- Laboratory of Neuropharmacology, IB/University of Brasilia, Federal District, Brasilia, 70910-900, Brazil
| | - Mônica C Toffoli-Kadri
- Laboratory of Pharmacology and Inflammation, FACFAN/Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Johannes Koehbach
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - David J Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Queensland, 4072, Australia
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10
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Herrera C, Leza M, Martínez-López E. Diversity of compounds in Vespa spp. venom and the epidemiology of its sting: a global appraisal. Arch Toxicol 2020; 94:3609-3627. [PMID: 32700166 DOI: 10.1007/s00204-020-02859-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/04/2020] [Indexed: 12/23/2022]
Abstract
Poisonous animals imply a risk to human life, because their venom is a complex mixture of low molecular weight components, peptides and proteins. Hornets use the venom for self-defence, to repel intruders and to capture prey, but they can cause poisoning and allergic reactions to people. In particular, they seem to be a health problem in the countries where they are native due to their sting, which in the most severe cases can lead to severe or fatal systemic anaphylaxis. But this situation is being an emerging problem for new countries and continents because hornet incursions are increasing in the global change scenario, such as in Europe and America. Furthermore, 55 detailed cases of hornet sting were found in 27 papers during the current review where 36.4% died due to, mainly, a multi-organ failure, where renal failure and liver dysfunction were the most common complications. Moreover, the great taxonomic, ecological diversity, geographical distribution and the wide spectrum of pathophysiological symptoms of hornets have been the focus of new research. Considering this, the present systematic review summarizes the current knowledge about the components of Vespa venom and the epidemiology of its sting to serve as reference for the new research focused on the development of techniques for diagnosis, new drugs and treatments of its sting.
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Affiliation(s)
- Cayetano Herrera
- Department of Biology (Zoology), University of the Balearic Islands, Palma, Balearic Islands, Spain
| | - Mar Leza
- Department of Biology (Zoology), University of the Balearic Islands, Palma, Balearic Islands, Spain.
| | - Emma Martínez-López
- Area of Toxicology, Department of Health Sciences, Faculty of Veterinary Medicine, University of Murcia, 30100, Murcia, Spain.,Toxicology and Risk Assessment Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University of Murcia, 30100, Murcia, Spain
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11
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de Castro E Silva J, Lopes do Couto L, de Oliveira Amaral H, Maria Medeiros Gomes F, Avohay Alves Campos G, Paulino Silva L, Renata Mortari M. Neuropolybin: A new antiseizure peptide obtained from wasp venom. Biochem Pharmacol 2020; 181:114119. [PMID: 32589997 DOI: 10.1016/j.bcp.2020.114119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/18/2022]
Abstract
Epilepsy accounts for one of the most serious neurological disorders, and its treatment remains a challenge, due to high cost and harmful side effects. Bioactive molecules extracted from arthropod venoms are considered a promising therapy since these compounds are known for their highly selective and potent profiles. The purpose of this study was to identify and characterize the potential antiseizure effect of the peptide Ppnp7, extracted from the venom of the social wasp Polybia paulista, and also the effect of the bioinspired peptide, named Neuropolybin, in the same parameters. Additionally, we also evaluated the electroencephalographic (EEG) profile in the PTZ-induced acute seizures in animals treated with Neuropolybin, and potential adverse effects of both peptides in general spontaneous activity (Open Field analysis). Interestingly, Ppnp7 and Neuropolybin showed a noteworthy antiseizure effect in rats and mice, respectively. Curves of protection against the maximum seizure were obtained for both peptides, and EEG records demonstrated that Neuropolybin protected 80% of animals from tonic-clonic seizures when applied with a dose of 3 nmol (an approximate Ppnp7 ED50 found in rats). Neuropolybin and Ppnp7 did not cause changes in the general spontaneous activity of the animals in any of the doses evaluated. Therefore, this study demonstrated how compounds isolated from wasps' venom may be essential resources in the search for new drugs, and can also be considered valuable therapeutic and biotechnological tools for the study and future treatment of epileptic disorders.
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Affiliation(s)
- Juliana de Castro E Silva
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil
| | - Lucianna Lopes do Couto
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil
| | - Henrique de Oliveira Amaral
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil
| | - Flávia Maria Medeiros Gomes
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil
| | - Gabriel Avohay Alves Campos
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil
| | - Luciano Paulino Silva
- Mass Spectrometry Laboratory, EMBRAPA Genetic Resources and Biotechnology, Distrito Federal, DF, Brazil
| | - Márcia Renata Mortari
- Neuropharmacology Laboratory, Institute of Biological Sciences, Department of Physiological Sciences, University of Brasília, Distrito Federal, DF, Brazil.
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12
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Dou M, Tsai CF, Piehowski PD, Wang Y, Fillmore TL, Zhao R, Moore RJ, Zhang P, Qian WJ, Smith RD, Liu T, Kelly RT, Shi T, Zhu Y. Automated Nanoflow Two-Dimensional Reversed-Phase Liquid Chromatography System Enables In-Depth Proteome and Phosphoproteome Profiling of Nanoscale Samples. Anal Chem 2019; 91:9707-9715. [PMID: 31241912 DOI: 10.1021/acs.analchem.9b01248] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Two-dimensional reversed-phase capillary liquid chromatography (2D RPLC) separations have enabled comprehensive proteome profiling of biological systems. However, milligram sample quantities of proteins are typically required due to significant losses during offline fractionation. Such a large sample requirement generally precludes the application samples in the nanogram to low-microgram range. To achieve in-depth proteomic analysis of such small-sized samples, we have developed the nanoFAC (nanoflow Fractionation and Automated Concatenation) 2D RPLC platform, in which the first dimension high-pH fractionation was performed on a 75-μm i.d. capillary column at a 300 nL/min flow rate with automated fraction concatenation, instead of on a typically used 2.1 mm column at a 200 μL/min flow rate with manual concatenation. Each fraction was then fully transferred to the second-dimension low-pH nanoLC separation using an autosampler equipped with a custom-machined syringe. We have found that using a polypropylene 96-well plate as collection device as well as the addition of n-Dodecyl β-d-maltoside (0.01%) in the collection buffer can significantly improve sample recovery. We have demonstrated the nanoFAC 2D RPLC platform can achieve confident identifications of ∼49,000-94,000 unique peptides, corresponding to ∼6,700-8,300 protein groups using only 100-1000 ng of HeLa tryptic digest (equivalent to ∼500-5,000 cells). Furthermore, by integrating with phosphopeptide enrichment, the nanoFAC 2D RPLC platform can identify ∼20,000 phosphopeptides from 100 μg of MCF-7 cell lysate.
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Affiliation(s)
- Maowei Dou
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Chia-Feng Tsai
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Paul D Piehowski
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Yang Wang
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Thomas L Fillmore
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Rui Zhao
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Ronald J Moore
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Pengfei Zhang
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Wei-Jun Qian
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Richard D Smith
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Tao Liu
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Ryan T Kelly
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States.,Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84604 , United States
| | - Tujin Shi
- Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Ying Zhu
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
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Kawakami H, Goto SG, Murata K, Matsuda H, Shigeri Y, Imura T, Inagaki H, Shinada T. Isolation of biologically active peptides from the venom of Japanese carpenter bee, Xylocopa appendiculata. J Venom Anim Toxins Incl Trop Dis 2017; 23:29. [PMID: 28546807 PMCID: PMC5442655 DOI: 10.1186/s40409-017-0119-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/09/2017] [Indexed: 12/29/2022] Open
Abstract
Background Mass spectrometry-guided venom peptide profiling is a powerful tool to explore novel substances from venomous animals in a highly sensitive manner. In this study, this peptide profiling approach is successfully applied to explore the venom peptides of a Japanese solitary carpenter bee, Xylocopa appendiculata (Hymenoptera: Apoidea: Apidae: Anthophila: Xylocopinae: Xylocopini). Although interesting biological effects of the crude venom of carpenter bees have been reported, the structure and biological function of the venom peptides have not been elucidated yet. Methods The venom peptide profiling of the crude venom of X. appendiculata was performed by matrix-assisted laser desorption/ionization-time of flight mass spectroscopy. The venom was purified by a reverse-phase HPLC. The purified peptides were subjected to the Edman degradation, MS/MS analysis, and/or molecular cloning methods for peptide sequencing. Biological and functional characterization was performed by circular dichroism analysis, liposome leakage assay, and antimicrobial, histamine releasing and hemolytic activity tests. Results Three novel peptides with m/z 16508, 1939.3, and 1900.3 were isolated from the venom of X. appendiculata. The peptide with m/z 16508 was characterized as a secretory phospholipase A2 (PLA2) homolog in which the characteristic cysteine residues as well as the active site residues found in bee PLA2s are highly conserved. Two novel peptides with m/z 1939.3 and m/z 1900.3 were named as Xac-1 and Xac-2, respectively. These peptides are found to be amphiphilic and displayed antimicrobial and hemolytic activities. The potency was almost the same as that of mastoparan isolated from the wasp venom. Conclusion We found three novel biologically active peptides in the venom of X. appendiculata and analyzed their molecular functions, and compared their sequential homology to discuss their molecular diversity. Highly sensitive mass analysis plays an important role in this study. Electronic supplementary material The online version of this article (doi:10.1186/s40409-017-0119-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hiroko Kawakami
- Graduate School of Material Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585 Japan
| | - Shin G Goto
- Graduate School of Science, Department of Biology & Geosciences, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585 Japan
| | - Kazuya Murata
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashiosaka, Osaka 577-8502 Japan
| | - Hideaki Matsuda
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashiosaka, Osaka 577-8502 Japan
| | - Yasushi Shigeri
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Osaka, Japan
| | - Tomohiro Imura
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
| | - Hidetoshi Inagaki
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
| | - Tetsuro Shinada
- Graduate School of Material Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585 Japan
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Kuzmenkov AI, Grishin EV, Vassilevski AA. Diversity of Potassium Channel Ligands: Focus on Scorpion Toxins. BIOCHEMISTRY (MOSCOW) 2016; 80:1764-99. [DOI: 10.1134/s0006297915130118] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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