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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. J Nat Prod 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Fernández-Bobey A, Pinto MEF, de Almeida LC, de Souza BM, Dias NB, de Paula-Souza J, Cilli EM, Lopes NP, Costa-Lotufo LV, Palma MS, da Silva Bolzani V. Cytotoxic Cyclotides from Anchietea pyrifolia, a South American Plant Species. J Nat Prod 2022; 85:2127-2134. [PMID: 36044031 DOI: 10.1021/acs.jnatprod.1c01129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cyclotides are mini-proteins with potent bioactivities and outstanding potential for agricultural and pharmaceutical applications. More than 450 different plant cyclotides have been isolated from six angiosperm families. In Brazil, studies involving this class of natural products are still scarce, despite its rich floristic diversity. Herein were investigated the cyclotides from Anchietea pyrifolia roots, a South American medicinal plant from the family Violaceae. Fourteen putative cyclotides were annotated by LC-MS. Among these, three new bracelet cyclotides, anpy A-C, and the known cycloviolacins O4 (cyO4) and O17 (cyO17) were sequenced through a combination of chemical and enzymatic reactions followed by MALDI-MS/MS analysis. Their cytotoxic activity was evaluated by a cytotoxicity assay against three human cancer cell lines (colorectal carcinoma cells: HCT 116 and HCT 116 TP53-/- and breast adenocarcinoma, MCF 7). For all assays, the IC50 values of isolated compounds ranged between 0.8 and 7.3 μM. CyO17 was the most potent cyclotide for the colorectal cancer cell lines (IC50, 0.8 and 1.2 μM). Furthermore, the hemolytic activity of anpy A and B, cyO4, and cyO17 was assessed, and the cycloviolacins were the least hemolytic (HD50 > 156 μM). This work sheds light on the cytotoxic effects of the anpy cyclotides against cancer cells. Moreover, this study expands the number of cyclotides obtained to date from Brazilian plant biodiversity and adds one more genus containing these molecules to the list of the Violaceae family.
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Affiliation(s)
- Antonio Fernández-Bobey
- Nucleus of Bioassays, Biosynthesis, and Ecophysiology of Natural Products (NuBBE), Institute of Chemistry, Sao Paulo State University (UNESP), 14800-060, Araraquara, Sao Paulo, Brazil
- Department of Basic and Applied Biology, Laboratory of Structural Biology and Zoochemistry, Institute of Biosciences, Sao Paulo State University (UNESP), 13506-900, Rio Claro, Sao Paulo, Brazil
| | - Meri Emili Ferreira Pinto
- Nucleus of Bioassays, Biosynthesis, and Ecophysiology of Natural Products (NuBBE), Institute of Chemistry, Sao Paulo State University (UNESP), 14800-060, Araraquara, Sao Paulo, Brazil
| | - Larissa Costa de Almeida
- Department of Pharmacology, Institute of Biomedical Science, University of Sao Paulo (USP), 05508-900, Sao Paulo, Brazil
| | - Bibiana Monson de Souza
- Department of Basic and Applied Biology, Laboratory of Structural Biology and Zoochemistry, Institute of Biosciences, Sao Paulo State University (UNESP), 13506-900, Rio Claro, Sao Paulo, Brazil
| | - Nathalia Baptista Dias
- Scientific and Technological Bioresource Nucleus (BIOREN), University of The Frontier (UFRO), 4881-176, Temuco, Chile
| | - Juliana de Paula-Souza
- Department of Botany, Federal University of Santa Catarina (UFSC), 88040-535, Florianopolis, Santa Catarina, Brazil
| | - Eduardo Maffud Cilli
- Nucleus of Bioassays, Biosynthesis, and Ecophysiology of Natural Products (NuBBE), Institute of Chemistry, Sao Paulo State University (UNESP), 14800-060, Araraquara, Sao Paulo, Brazil
| | - Norberto Peporine Lopes
- Nucleus Research in Natural and Synthetic Products (NPPNS), Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo (USP), 14040-903, Ribeirao Preto, Sao Paulo, Brazil
| | - Leticia Veras Costa-Lotufo
- Department of Pharmacology, Institute of Biomedical Science, University of Sao Paulo (USP), 05508-900, Sao Paulo, Brazil
| | - Mario Sergio Palma
- Department of Basic and Applied Biology, Laboratory of Structural Biology and Zoochemistry, Institute of Biosciences, Sao Paulo State University (UNESP), 13506-900, Rio Claro, Sao Paulo, Brazil
| | - Vanderlan da Silva Bolzani
- Nucleus of Bioassays, Biosynthesis, and Ecophysiology of Natural Products (NuBBE), Institute of Chemistry, Sao Paulo State University (UNESP), 14800-060, Araraquara, Sao Paulo, Brazil
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Serrão VHB, Fernandes ADF, Basso LGM, Scortecci JF, Crusca Júnior E, Cornélio ML, de Souza BM, Palma MS, de Oliveira Neto M, Thiemann OH. The Specific Elongation Factor to Selenocysteine Incorporation in Escherichia coli: Unique tRNA Sec Recognition and its Interactions. J Mol Biol 2021; 433:167279. [PMID: 34624294 DOI: 10.1016/j.jmb.2021.167279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 10/20/2022]
Abstract
Several molecular mechanisms are involved in the genetic code interpretation during translation, as codon degeneration for the incorporation of rare amino acids. One mechanism that stands out is selenocysteine (Sec), which requires a specific biosynthesis and incorporation pathway. In Bacteria, the Sec biosynthesis pathway has unique features compared with the eukaryote pathway as Ser to Sec conversion mechanism is accomplished by a homodecameric enzyme (selenocysteine synthase, SelA) followed by the action of an elongation factor (SelB) responsible for delivering the mature Sec-tRNASec into the ribosome by the interaction with the Selenocysteine Insertion Sequence (SECIS). Besides this mechanism being already described, the sequential events for Sec-tRNASec and SECIS specific recognition remain unclear. In this study, we determined the order of events of the interactions between the proteins and RNAs involved in Sec incorporation. Dissociation constants between SelB and the native as well as unacylated-tRNASec variants demonstrated that the acceptor stem and variable arm are essential for SelB recognition. Moreover, our data support the sequence of molecular events where GTP-activated SelB strongly interacts with SelA.tRNASec. Subsequently, SelB.GTP.tRNASec recognizes the mRNA SECIS to deliver the tRNASec to the ribosome. SelB in complex with its specific RNAs were examined using Hydrogen/Deuterium exchange mapping that allowed the determination of the molecular envelopes and its secondary structural variations during the complex assembly. Our results demonstrate the ordering of events in Sec incorporation and contribute to the full comprehension of the tRNASec role in the Sec amino acid biosynthesis, as well as extending the knowledge of synthetic biology and the expansion of the genetic code.
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Affiliation(s)
- Vitor Hugo Balasco Serrão
- Physics Institute of Sao Carlos, University of Sao Paulo, Trabalhador Sao Carlense Av., 400, São Carlos, SP CEP 13566-590, Brazil; Department of Chemistry and Biochemistry, University California - Santa Cruz, 1156 High St., Santa Cruz, CA 95060, United States
| | - Adriano de Freitas Fernandes
- Physics Institute of Sao Carlos, University of Sao Paulo, Trabalhador Sao Carlense Av., 400, São Carlos, SP CEP 13566-590, Brazil
| | - Luis Guilherme Mansor Basso
- Physical Sciences Laboratory, State University of Northern Rio de Janeiro Darcy Ribeiro - UENF, Av. Alberto Lamego, 2000, 28013-602 Campos dos Goytacazes, RJ, Brazil; Faculty of Science, Philosophy and Letters, University of Sao Paulo, CEP 14040-901 Ribeirão Preto, SP, Brazil
| | - Jéssica Fernandes Scortecci
- Physics Institute of Sao Carlos, University of Sao Paulo, Trabalhador Sao Carlense Av., 400, São Carlos, SP CEP 13566-590, Brazil; Department of Biochemistry and Molecular Biology, University of British Columbia, 2350 Health Science Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Edson Crusca Júnior
- Department of Physical Chemistry, Chemistry Institute of the São Paulo State University - UNESP, CEP 14800-900 Araraquara, SP, Brazil
| | - Marinônio Lopes Cornélio
- Physics Department, Institute of Biosciences, Letters and Exact Sciences (IBILCE), São Paulo State University - UNESP, São Jose do Rio Preto, SP, Brazil
| | - Bibiana Monson de Souza
- Department of General and Applied Biology, Institute of Biosciences of Rio Claro, São Paulo State University - UNESP, Rio Claro, SP, Brazil
| | - Mário Sérgio Palma
- Department of General and Applied Biology, Institute of Biosciences of Rio Claro, São Paulo State University - UNESP, Rio Claro, SP, Brazil
| | - Mario de Oliveira Neto
- Bioscience Institute of Universidade Estadual Paulista, Rubião Jr., Botucatu, SP CEP 18618-000, Brazil
| | - Otavio Henrique Thiemann
- Physics Institute of Sao Carlos, University of Sao Paulo, Trabalhador Sao Carlense Av., 400, São Carlos, SP CEP 13566-590, Brazil; Department of Genetics and Evolution, Federal University of São Carlos - UFSCar, 13565-905 São Carlos, SP, Brazil.
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Martins IBS, Viegas TG, Dos Santos Alvares D, de Souza BM, Palma MS, Ruggiero Neto J, de Araujo AS. The effect of acidic pH on the adsorption and lytic activity of the peptides Polybia-MP1 and its histidine-containing analog in anionic lipid membrane: a biophysical study by molecular dynamics and spectroscopy. Amino Acids 2021; 53:753-767. [PMID: 33890127 DOI: 10.1007/s00726-021-02982-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/12/2021] [Indexed: 01/09/2023]
Abstract
Antimicrobial peptides (AMPs) are part of the innate immune system of many species. AMPs are short sequences rich in charged and non-polar residues. They act on the lipid phase of the plasma membrane without requiring membrane receptors. Polybia-MP1 (MP1), extracted from a native wasp, is a broad-spectrum bactericide, an inhibitor of cancer cell proliferation being non-hemolytic and non-cytotoxic. MP1 mechanism of action and its adsorption mode is not yet completely known. Its adsorption to lipid bilayer and lytic activity is most likely dependent on the ionization state of its two acidic and three basic residues and consequently on the bulk pH. Here we investigated the effect of bulk acidic (pH 5.5) and neutral pH (7.4) solution on the adsorption, insertion, and lytic activity of MP1 and its analog H-MP1 to anionic (7POPC:3POPG) model membrane. H-MP1 is a synthetic analog of MP1 with lysines replaced by histidines. Bulk pH changes could modulate this peptide efficiency. The combination of different experimental techniques and molecular dynamics (MD) simulations showed that the adsorption, insertion, and lytic activity of H-MP1 are highly sensitive to bulk pH in opposition to MP1. The atomistic details, provided by MD simulations, showed peptides contact their N-termini to the bilayer before the insertion and then lay parallel to the bilayer. Their hydrophobic faces inserted into the acyl chain phase disturb the lipid-packing.
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Affiliation(s)
- Ingrid Bernardes Santana Martins
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Taisa Giordano Viegas
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Dayane Dos Santos Alvares
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Bibiana Monson de Souza
- Department of Basic and Applied Biology, Institute of Biosciences, UNESP-São Paulo State University, Rio Claro, SP, Brazil
| | - Mário Sérgio Palma
- Department of Basic and Applied Biology, Institute of Biosciences, UNESP-São Paulo State University, Rio Claro, SP, Brazil
| | - João Ruggiero Neto
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil.
| | - Alexandre Suman de Araujo
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil.
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Martins DB, Pacca CC, da Silva AMB, de Souza BM, de Almeida MTG, Palma MS, Arcisio-Miranda M, Dos Santos Cabrera MP. Comparing activity, toxicity and model membrane interactions of Jelleine-I and Trp/Arg analogs: analysis of peptide aggregation. Amino Acids 2020; 52:725-741. [PMID: 32367434 DOI: 10.1007/s00726-020-02847-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/23/2020] [Indexed: 01/06/2023]
Abstract
Increasing resistance in antibiotic and chemotherapeutic treatments has been pushing studies of design and evaluation of bioactive peptides. Designing relies on different approaches from minimalist sequences and endogenous peptides modifications to computational libraries. Evaluation relies on microbiological tests. Aiming a deeper understanding, we chose the octapeptide Jelleine-I (JI) for its selective and low toxicity profile, designed small modifications combining the substitutions of Phe by Trp and Lys/His by Arg and tested the antimicrobial and anticancer activity on melanoma cells. Biophysical methods identified environment-dependent modulation of aggregation, but critical aggregation concentrations of JI and analogs in buffer show that peptides start membrane interactions as monomers. The presence of model membranes increases or reduces the partial aggregation of peptides. Compared to JI, analog JIF2WR shows the lowest tendency to aggregation on bacterial model membranes. JI and analogs are lytic to model membranes. Their composition-dependent performance indicates preference for the higher charged anionic bilayers in line with their superior performance toward Staphylococcus aureus and Streptococcus pneumoniae. JIF2WR presented the higher partitioning, higher lytic activity and lower aggregated contents. Despite these increased membranolytic activities, JIF2WR exhibited comparable antimicrobial activity in relation to JI at the expenses of some loss in selectivity. We found that the substitution Phe/Trp (JIF2W) tends to decrease antimicrobial but to increase anticancer activity and aggregation on model membranes and the toxicity toward human cells. However, the concomitant substitution Lys/His by Arg (JIF2WR) modulates some of these tendencies, increasing both the antimicrobial and the anticancer activity while decreasing the aggregation tendency.
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Affiliation(s)
- Danubia Batista Martins
- Departamento de Física, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil
| | | | - Annielle Mendes Brito da Silva
- Laboratório de Neurobiologia Estrutural e Funcional (LaNEF), Departamento de Biofísica, Universidade Federal de São Paulo, R. Botucatu, 862, Edifício ECB, 7º andar, São Paulo, SP, 04023-062, Brazil
| | - Bibiana Monson de Souza
- Centro de Estudos de Insetos Sociais, Universidade Estadual Paulista (Unesp), Câmpus Rio Claro, Av. 24-A, 1515, Rio Claro, SP, 13506-900, Brazil
| | - Margarete Teresa Gottardo de Almeida
- Departamento de Doenças Dermatológicas Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mario Sérgio Palma
- Centro de Estudos de Insetos Sociais, Universidade Estadual Paulista (Unesp), Câmpus Rio Claro, Av. 24-A, 1515, Rio Claro, SP, 13506-900, Brazil
| | - Manoel Arcisio-Miranda
- Laboratório de Neurobiologia Estrutural e Funcional (LaNEF), Departamento de Biofísica, Universidade Federal de São Paulo, R. Botucatu, 862, Edifício ECB, 7º andar, São Paulo, SP, 04023-062, Brazil
| | - Marcia Perez Dos Santos Cabrera
- Departamento de Física, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil.
- Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil.
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Singulani JDL, Galeane MC, Ramos MD, Gomes PC, Dos Santos CT, de Souza BM, Palma MS, Fusco Almeida AM, Mendes Giannini MJS. Antifungal Activity, Toxicity, and Membranolytic Action of a Mastoparan Analog Peptide. Front Cell Infect Microbiol 2019; 9:419. [PMID: 31867293 PMCID: PMC6908851 DOI: 10.3389/fcimb.2019.00419] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/25/2019] [Indexed: 11/13/2022] Open
Abstract
Invasive fungal infections, such as cryptococcosis and paracoccidioidomycosis are associated with significant rates of morbidity and mortality. Cryptococcosis, caused by Cryptococcus neoformans, is distributed worldwide and has received much attention as a common complication in patients with HIV. Invasive fungal infections are usually treated with a combination of amphotericin B and azoles. In addition, 5-fluorocytosine (5-FC) is applied in cryptococcosis, specifically to treat central nervous system infection. However, host toxicity, high cost, emerging number of resistant strains, and difficulty in developing new selective antifungals pose challenges. The need for new antifungals has therefore prompted a screen for inhibitory peptides, which have multiple mechanisms of action. The honeycomb moth Galleria mellonella has been widely used as a model system for evaluating efficacy of antifungal agents. In this study, a peptide analog from the mastoparan class of wasps (MK58911) was tested against Cryptococcus spp. and Paracoccidioides spp. In addition, peptide toxicity tests on lung fibroblasts (MRC5) and glioblastoma cells (U87) were performed. Subsequent tests related to drug interaction and mechanism of action were also performed, and efficacy and toxicity of the peptide were evaluated in vivo using the G. mellonella model. Our results reveal promising activity of the peptide, with an MIC in the range of 7.8-31.2 μg/mL, and low toxicity in MRC and U87 cells (IC50 > 500 μg/mL). Taken together, these results demonstrate that MK58911 is highly toxic in fungal cells, but not mammalian cells (SI > 16). The mechanism of toxicity involved disruption of the plasma membrane, leading to death of the fungus mainly by necrosis. In addition, no interaction with the drugs amphotericin B and fluconazole was found either in vitro or in vivo. Finally, the peptide showed no toxic effects on G. mellonella, and significantly enhanced survival rates of larvae infected with C. neoformans. Although not statistically significant, treatment of larvae with all doses of MK58911 showed a similar trend in decreasing the fungal burden of larvae. These effects were independent of any immunomodulatory activity. Overall, these results present a peptide with potential for use as a new antifungal drug to treat systemic mycoses.
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Affiliation(s)
- Junya de Lacorte Singulani
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
| | - Mariana Cristina Galeane
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
| | - Marina Dorisse Ramos
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
| | - Paulo César Gomes
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
| | - Claudia Tavares Dos Santos
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
| | - Bibiana Monson de Souza
- Department of Biology, Center for the Study of Social Insects, Institute of Biosciences, São Paulo State University-UNESP, Rio Claro, Brazil
| | - Mario Sergio Palma
- Department of Biology, Center for the Study of Social Insects, Institute of Biosciences, São Paulo State University-UNESP, Rio Claro, Brazil
| | - Ana Marisa Fusco Almeida
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, Brazil
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Vinhote JFC, Lima DB, Menezes RRPPBD, Mello CP, de Souza BM, Havt A, Palma MS, Santos RPD, Albuquerque ELD, Freire VN, Martins AMC. Trypanocidal activity of mastoparan from Polybia paulista wasp venom by interaction with TcGAPDH. Toxicon 2017; 137:168-172. [PMID: 28826757 DOI: 10.1016/j.toxicon.2017.08.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 07/31/2017] [Accepted: 08/02/2017] [Indexed: 11/25/2022]
Abstract
Chagas disease, considered a neglected disease, is a parasitic infection caused by Trypanosoma cruzi, which is endemic throughout the world. Previously, the antimicrobial effect of Mastoparan (MP) from Polybia paulista wasp venom against bacteria was described. To continue the study, we report in this short communication the antimicrobial effect of MP against Trypanosoma cruzi. MP inhibits all T. cruzi developmental forms through the inhibition of TcGAPDH suggested by the molecular docking. In conclusion, we suggest there is an antimicrobial effect also on T. cruzi.
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Affiliation(s)
| | - Dânya Bandeira Lima
- Department of Clinical and Toxicological Analyses, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Clarissa Perdigão Mello
- Department of Clinical and Toxicological Analyses, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Alexandre Havt
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Mario Sérgio Palma
- Institute of Biosciences of Rio Claro, São Paulo State University, Brazil
| | | | - Eudenilson Lins de Albuquerque
- Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | | | - Alice Maria Costa Martins
- Department of Clinical and Toxicological Analyses, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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Souza BMD, Cabrera MPDS, Gomes PC, Dias NB, Stabeli RG, Leite NB, Neto JR, Palma MS. Structure-activity relationship of mastoparan analogs: Effects of the number and positioning of Lys residues on secondary structure, interaction with membrane-mimetic systems and biological activity. Peptides 2015; 72:164-74. [PMID: 25944744 DOI: 10.1016/j.peptides.2015.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 04/16/2015] [Accepted: 04/19/2015] [Indexed: 10/23/2022]
Abstract
In this study, a series of mastoparan analogs were engineered based on the strategies of Ala and Lys scanning in relation to the sequences of classical mastoparans. Ten analog mastoparans, presenting from zero to six Lys residues in their sequences were synthesized and assayed for some typical biological activities for this group of peptide: mast cell degranulation, hemolysis, and antibiosis. In relation to mast cell degranulation, the apparent structural requirement to optimize this activity was the existence of one or two Lys residues at positions 8 and/or 9. In relation to hemolysis, one structural feature that strongly correlated with the potency of this activity was the number of amino acid residues from the C-terminus of each peptide continuously embedded into the zwitterionic membrane of erythrocytes-mimicking liposomes, probably due to the contribution of this structural feature to the membrane perturbation. The antibiotic activity of mastoparan analogs was directly dependent on the apparent extension of their hydrophilic surface, i.e., their molecules must have from four to six Lys residues between positions 4 and 11 of the peptide chain to achieve activities comparable to or higher than the reference antibiotic compounds. The optimization of the antibacterial activity of the mastoparans must consider Lys residues at the positions 4, 5, 7, 8, 9, and 11 of the tetradecapeptide chain, with the other positions occupied by hydrophobic residues, and with the C-terminal residue in the amidated form. These requirements resulted in highly active AMPs with greatly reduced (or no) hemolytic and mast cell degranulating activities.
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Affiliation(s)
- Bibiana Monson de Souza
- Institute of Biosciences, Department of Biology, Center for the Study of Social Insects, UNESP-Univ. Estadual Paulista, Campus of Rio Claro, Rio Claro, SP, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia (iii), Salvador, BA, Brazil
| | - Marcia Perez Dos Santos Cabrera
- Department of Chemistry and Environmental Sciences, IBILCE, UNESP-Univ. Estadual Paulista, Campus of São José do Rio Preto, São José do Rio Preto, SP, Brazil
| | - Paulo Cesar Gomes
- Department of Clinical Analysis, Proteomic Center, Faculty of Pharmaceutical Sciences, UNESP-Univ. Estadual Paulista, Campus of Araraquara, Araraquara, SP, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia (iii), Salvador, BA, Brazil
| | - Nathalia Baptista Dias
- Institute of Biosciences, Department of Biology, Center for the Study of Social Insects, UNESP-Univ. Estadual Paulista, Campus of Rio Claro, Rio Claro, SP, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia (iii), Salvador, BA, Brazil
| | - Rodrigo Guerino Stabeli
- Fundação Oswaldo Cruz, Ministério da Saúde, VPPLR, FIOCRUZ Rio de Janeiro, Rio de Janeiro, SP, Brazil
| | - Natalia Bueno Leite
- Department of Physics, IBILCE, UNESP-Univ. Estadual Paulista, Campus of São José do Rio Preto, São José do Rio Preto, SP, Brazil
| | - João Ruggiero Neto
- Department of Physics, IBILCE, UNESP-Univ. Estadual Paulista, Campus of São José do Rio Preto, São José do Rio Preto, SP, Brazil
| | - Mario Sergio Palma
- Institute of Biosciences, Department of Biology, Center for the Study of Social Insects, UNESP-Univ. Estadual Paulista, Campus of Rio Claro, Rio Claro, SP, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia (iii), Salvador, BA, Brazil.
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Dias NB, de Souza BM, Gomes PC, Brigatte P, Palma MS. Peptidome profiling of venom from the social wasp Polybia paulista. Toxicon 2015; 107:290-303. [PMID: 26303042 DOI: 10.1016/j.toxicon.2015.08.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/14/2015] [Accepted: 08/19/2015] [Indexed: 12/17/2022]
Abstract
Most crude venom from Polybia paulista is composed of short, linear peptides; however, only five of these peptides are structurally and functionally characterized. Therefore, the peptides in this venom were profiled using an HPLC-IT-TOF/MS and MS(n) system. The presence of type -d and -w ions that are generated from the fragmentation of the side chains was used to resolve I/L ambiguity. The distinction between K and Q residues was achieved through esterification of the α- and ε-amino groups in the peptide chains, followed by mass spectrometry analysis. Fourteen major peptides were detected in P. paulista venom and sequenced; all the peptides were synthesized on solid-phase and submitted to a series of bioassays. Five of them had been previously characterized, and nine were novel toxins. The novel peptides correspond to two wasp kinins, two chemotactic components, three mastoparans, and two peptides of unknown function. The seven novel peptides with identified functions appear to act synergistically with the previously known ones, constituting three well-known families of peptide toxins (wasp kinins, chemotactic peptides, and mastoparans) in the venom of social wasps. These multifunctional toxins can cause pain, oedema formation, haemolysis, chemotaxis of PMNLs, and mast cell degranulation in victims who are stung by wasps.
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Affiliation(s)
- Nathalia Batista Dias
- Dept. Biology/CEIS, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), Brazil
| | - Bibiana Monson de Souza
- Dept. Biology/CEIS, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), Brazil
| | - Paulo Cesar Gomes
- Dept. Biology/CEIS, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), Brazil
| | - Patricia Brigatte
- Dept. Biology/CEIS, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), Brazil
| | - Mario Sergio Palma
- Dept. Biology/CEIS, Institute of Biosciences of Rio Claro, University of São Paulo State (UNESP), Brazil.
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dos Santos Cabrera MP, Baldissera G, Silva-Gonçalves LDC, de Souza BM, Riske KA, Palma MS, Ruggiero JR, Arcisio-Miranda M. Combining Experimental Evidence and Molecular Dynamic Simulations To Understand the Mechanism of Action of the Antimicrobial Octapeptide Jelleine-I. Biochemistry 2014; 53:4857-68. [DOI: 10.1021/bi5003585] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcia Perez dos Santos Cabrera
- Departamento
de Química e Ciências Ambientais, Universidade Estadual Paulista, São José do Rio Preto, São
Paulo 15054-000, Brazil
- Departamento
de Física, Universidade Estadual Paulista, São José
do Rio Preto, São Paulo 15054-000, Brazil
| | - Gisele Baldissera
- Departamento
de Física, Universidade Estadual Paulista, São José
do Rio Preto, São Paulo 15054-000, Brazil
- Faculdade de Tecnologia de Catanduva, Catanduva, São Paulo 15800-200, Brazil
| | | | - Bibiana Monson de Souza
- Centro
de Estudos de Insetos Sociais, Universidade Estadual Paulista, Rio Claro, São Paulo 13506-900, Brazil
| | - Karin A. Riske
- Departamento
de Biofísica, Universidade Federal de São Paulo, São
Paulo, São Paulo 04023-062, Brazil
| | - Mario Sérgio Palma
- Centro
de Estudos de Insetos Sociais, Universidade Estadual Paulista, Rio Claro, São Paulo 13506-900, Brazil
| | - José Roberto Ruggiero
- Departamento
de Física, Universidade Estadual Paulista, São José
do Rio Preto, São Paulo 15054-000, Brazil
| | - Manoel Arcisio-Miranda
- Departamento
de Biofísica, Universidade Federal de São Paulo, São
Paulo, São Paulo 04023-062, Brazil
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11
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Leite NB, Dos Santos Alvares D, de Souza BM, Palma MS, Ruggiero Neto J. Effect of the aspartic acid D2 on the affinity of Polybia-MP1 to anionic lipid vesicles. Eur Biophys J 2014; 43:121-30. [PMID: 24595375 DOI: 10.1007/s00249-014-0945-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 01/05/2014] [Accepted: 02/05/2014] [Indexed: 11/28/2022]
Abstract
Polybia-MP1 (IDWKKLLDAAKQIL-NH2), a helical peptide extracted from the venom of a Brazilian wasp, has broad-spectrum antimicrobial activities without being hemolytic or cytotoxic. This peptide has also displayed anticancer activity against cancer cell cultures. Despite its high selectivity, MP1 has an unusual low net charge (Q = +2). The aspartic residue (D2) in the N-terminal region plays an important role in its affinity and selectivity; its substitution by asparagine (D2N mutant) led to a less selective peptide. Aiming to explore the importance of this residue for the peptides' affinity, we compared the zwitterionic and anionic vesicle adsorption activity of Polybia-MP1 versus its D2N mutant and also mastoparan X (MPX). The adsorption, electrostatic, and conformational free energies were assessed by circular dichroism (CD) and fluorescence titrations using large unilamellar vesicles (LUVs) at the same conditions in association with measurement of the zeta potential of LUVs in the presence of the peptides. The adsorption free energies of the peptides, determined from the partition coefficients, indicated higher affinity of MP1 to anionic vesicles compared with the D2N mutant and MPX. The electrostatic and conformational free energies of MP1 in anionic vesicles are less favorable than those found for the D2N mutant and MPX. Therefore, the highest affinity of MP1 to anionic vesicles is likely due to other energetic contributions. The presence of D2 in MP1 makes these energetic components 1.2 and 1.5 kcal/mol more favorable compared with the D2N mutant and MPX, respectively.
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Affiliation(s)
- Natália Bueno Leite
- Department of Physics, IBILCE, São Paulo State University, UNESP, São José do Rio Preto, SP, Brazil
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12
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Dias NB, de Souza BM, Gomes PC, Palma MS. Peptide diversity in the venom of the social wasp Polybia paulista (Hymenoptera): a comparison of the intra- and inter-colony compositions. Peptides 2014; 51:122-30. [PMID: 24239857 DOI: 10.1016/j.peptides.2013.10.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 10/24/2013] [Accepted: 10/25/2013] [Indexed: 11/22/2022]
Abstract
The venoms of the social wasps evolved to be used as defensive tools to protect the colonies of these insects against the attacks of predators. Previous studies estimated the presence of a dozen peptide components in the venoms of each species of these insects, which altogether comprise up to 70% of the weight of freeze-dried venoms. In the present study, an optimized experimental protocol is reported that utilizes liquid chromatography coupled to electrospray ionization mass spectrometry for the detection of peptides in the venom of the social wasp Polybia paulista; peptide profiles for both intra- and inter-colonial comparisons were obtained using this protocol. The results of our study revealed a surprisingly high level of intra- and inter-colonial variability for the same wasp species. We detected 78-108 different peptides in the venom of different colonies of P. paulista in the molar mass range from 400 to 3000Da; among those, only 36 and 44 common peptides were observed in the inter- and intra-colony comparisons, respectively.
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Affiliation(s)
- Nathalia Baptista Dias
- UNESP - São Paulo State University, Center of Studies of Social Insects, Institute of Biosciences, Rio Claro, Brazil
| | - Bibiana Monson de Souza
- UNESP - São Paulo State University, Center of Studies of Social Insects, Institute of Biosciences, Rio Claro, Brazil
| | - Paulo Cesar Gomes
- UNESP - São Paulo State University, Center of Studies of Social Insects, Institute of Biosciences, Rio Claro, Brazil
| | - Mario Sergio Palma
- UNESP - São Paulo State University, Center of Studies of Social Insects, Institute of Biosciences, Rio Claro, Brazil.
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13
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Gomes PC, de Souza BM, Dias NB, Brigatte P, Mourelle D, Arcuri HA, dos Santos Cabrera MP, Stabeli RG, Neto JR, Palma MS. Structure-function relationships of the peptide Paulistine: a novel toxin from the venom of the social wasp Polybia paulista. Biochim Biophys Acta Gen Subj 2013; 1840:170-83. [PMID: 24007897 DOI: 10.1016/j.bbagen.2013.08.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/20/2013] [Accepted: 08/27/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND The peptide Paulistine was isolated from the venom of wasp Polybia paulista. This peptide exists under a natural equilibrium between the forms: oxidised - with an intra-molecular disulphide bridge; and reduced - in which the thiol groups of the cysteine residues do not form the disulphide bridge. The biological activities of both forms of the peptide are unknown up to now. METHODS Both forms of Paulistine were synthesised and the thiol groups of the reduced form were protected with the acetamidemethyl group [Acm-Paulistine] to prevent re-oxidation. The structure/activity relationships of the two forms were investigated, taking into account the importance of the disulphide bridge. RESULTS Paulistine has a more compact structure, while Acm-Paulistine has a more expanded conformation. Bioassays reported that Paulistine caused hyperalgesia by interacting with the receptors of lipid mediators involved in the cyclooxygenase type II pathway, while Acm-Paullistine also caused hyperalgesia, but mediated by receptors involved in the participation of prostanoids in the cyclooxygenase type II pathway. CONCLUSION The acetamidemethylation of the thiol groups of cysteine residues caused small structural changes, which in turn may have affected some physicochemical properties of the Paulistine. Thus, the dissociation of the hyperalgesy from the edematogenic effect when the actions of Paulistine and Acm-Paulistine are compared to each other may be resulting from the influence of the introduction of Acm-group in the structure of Paulistine. GENERAL SIGNIFICANCE The peptides Paulistine and Acm-Paulistine may be used as interesting tools to investigate the mechanisms of pain and inflammation in future studies.
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Affiliation(s)
- Paulo Cesar Gomes
- Department of Biology/CEIS/LSBZ, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, SP, Brazil
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14
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dos Santos Cabrera MP, Arcisio-Miranda M, Gorjão R, Leite NB, de Souza BM, Curi R, Procopio J, Ruggiero Neto J, Palma MS. Influence of the Bilayer Composition on the Binding and Membrane Disrupting Effect of Polybia-MP1, an Antimicrobial Mastoparan Peptide with Leukemic T-Lymphocyte Cell Selectivity. Biochemistry 2012; 51:4898-908. [DOI: 10.1021/bi201608d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marcia Perez dos Santos Cabrera
- UNESP-São Paulo State University, Center of Studies of Social
Insects, Institute of Biosciences, 13506-900 Rio Claro, SP, Brazil
| | - Manoel Arcisio-Miranda
- UNIFESP-Universidade Federal de São Paulo, Department of Biophysics,
04923-062 São Paulo, SP, Brazil
| | - Renata Gorjão
- Cruzeiro do Sul University,
Institute of Sciences of Physical Education and Sports, Post-Graduate
Program in Human Movement Science, 01506-000 São Paulo, SP,
Brazil
| | - Natália Bueno Leite
- UNESP-São Paulo State University, Department of Physics, IBILCE,
15054-000 São José do Rio Preto, SP, Brazil
| | - Bibiana Monson de Souza
- UNESP-São Paulo State University, Center of Studies of Social
Insects, Institute of Biosciences, 13506-900 Rio Claro, SP, Brazil
| | - Rui Curi
- USP-University of São Paulo, Department of Physiology and Biophysics,
Biomedical Sciences Institute, 05508-900 São Paulo, SP, Brazil
| | - Joaquim Procopio
- USP-University of São Paulo, Department of Physiology and Biophysics,
Biomedical Sciences Institute, 05508-900 São Paulo, SP, Brazil
| | - João Ruggiero Neto
- UNESP-São Paulo State University, Department of Physics, IBILCE,
15054-000 São José do Rio Preto, SP, Brazil
| | - Mario Sérgio Palma
- UNESP-São Paulo State University, Center of Studies of Social
Insects, Institute of Biosciences, 13506-900 Rio Claro, SP, Brazil
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15
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Cabrera MPDS, Alvares DS, Leite NB, de Souza BM, Palma MS, Riske KA, Neto JR. New insight into the mechanism of action of wasp mastoparan peptides: lytic activity and clustering observed with giant vesicles. Langmuir 2011; 27:10805-10813. [PMID: 21797216 DOI: 10.1021/la202608r] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Antimicrobial peptides of the mastoparans family exert their bactericidal activity by binding to lipid membranes, inducing pores or defects and leaking the internal contents of vesicles and cells. However, this does not seem to be the only mechanism at play, and they might be important in the search for improved peptides with lower undesirable side effects. This work deals with three mastoparans peptides, Polybia-MP-1(MP-1), N2-Polybia-MP-1 (N-MP-1), and Mastoparan X (MPX), which exhibit high sequence homology. They all have three lysine residues and amidated C termini, but because of the presence of two, one, and no aspartic acid residues, respectively, they have +2, +3, and +4 net charges at physiological pH. Here we focus on the effects of these mastoparans peptides on anionic model membranes made of palmitoleyoilphosphatidylcholine (POPC) and palmitoleyoilphosphatidylglycerol (POPG) at 1:1 and 3:1 molar ratios in the presence and in the absence of saline buffer. Zeta potential experiments were carried out to measure the extent of the peptides' binding and accumulation at the vesicle surface, and CD spectra were acquired to quantify the helical structuring of the peptides upon binding. Giant unilamellar vesicles were observed under phase contrast and fluorescence microscopy. We found that the three peptides induced the leakage of GUVs at a gradual rate with many characteristics of the graded mode. This process was faster in the absence of saline buffer. Additionally, we observed that the peptides induced the formation of dense regions of phospholipids and peptides on the GUV surface. This phenomenon was easily observable for the more charged peptides (MPX > N-MP-1 > MP-1) and in the absence of added salt. Our data suggest that these mastoparans accumulate on the bilayer surface and induce a transient interruption to its barrier properties, leaking the vesicle contents. Next, the bilayer recovers its continuity, but this happens in an inhomogeneous way, forming a kind of ply with peptides sandwiched between two juxtaposed membranes. Eventually, a peptide-lipid aggregate forming a lump is formed at high peptide-to-lipid ratios.
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Affiliation(s)
- Marcia P dos Santos Cabrera
- UNESP - São Paulo State University, IBILCE, Department of Physics, R. Cristóvão Colombo, 2265 CEP 15054-000, São José do Rio Preto SP, Brazil.
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16
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dos Santos LD, Santos KS, Pinto JRA, Dias NB, Souza BMD, dos Santos MF, Perales J, Domont GB, Castro FM, Kalil JE, Palma MS. Profiling the Proteome of the Venom from the Social Wasp Polybia paulista: A Clue to Understand the Envenoming Mechanism. J Proteome Res 2010; 9:3867-77. [DOI: 10.1021/pr1000829] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucilene Delazari dos Santos
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Keity Souza Santos
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - José Roberto Aparecido Pinto
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Nathalia Baptista Dias
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Bibiana Monson de Souza
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Marise Fonseca dos Santos
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Jonas Perales
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Gilberto Barbosa Domont
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Fabio Morato Castro
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Jorge Elias Kalil
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
| | - Mario Sergio Palma
- Institute of Biosciences of Rio Claro, Department of Biology, Center of the Study of Social Insects, University of São Paulo State (UNESP), Rio Claro, SP, Brazil, Discipline of Allergy and Immunology/InCor (HC/FMUSP), SP, Brazil, Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil, Department of Physiology and Pharmacodynamics, FIOCRUZ, RJ, Brazil, and Instituto Nacional de Ciência e Tecnologia (INCT) em Imunologia/iii
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Rocha T, Soares de Barros LL, Fontana K, Monson de Souza B, Palma MS, Alice da Cruz-Höfling M. Inflammation and apoptosis induced by mastoparan Polybia-MPII on skeletal muscle. Toxicon 2010; 55:1213-21. [DOI: 10.1016/j.toxicon.2009.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 10/07/2009] [Accepted: 12/03/2009] [Indexed: 12/16/2022]
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Leite NB, da Costa LC, Dos Santos Alvares D, Dos Santos Cabrera MP, de Souza BM, Palma MS, Ruggiero Neto J. The effect of acidic residues and amphipathicity on the lytic activities of mastoparan peptides studied by fluorescence and CD spectroscopy. Amino Acids 2010; 40:91-100. [PMID: 20195659 DOI: 10.1007/s00726-010-0511-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 02/03/2010] [Indexed: 11/27/2022]
Abstract
Some mastoparan peptides extracted from social wasps display antimicrobial activity and some are hemolytic and cytotoxic. Although the cell specificity of these peptides is complex and poorly understood, it is believed that their net charges and their hydrophobicity contribute to modulate their biological activities. We report a study, using fluorescence and circular dichroism spectroscopies, evaluating the influence of these two parameters on the lytic activities of five mastoparans in zwitterionic and anionic phospholipid vesicles. Four of these peptides, extracted from the venom of the social wasp Polybia paulista, present both acidic and basic residues with net charges ranging from +1 to +3 which were compared to Mastoparan-X with three basic residues and net charge +4. Previous studies revealed that these peptides have moderate-to-strong antibacterial activity against Gram-positive and Gram-negative microorganisms and some of them are hemolytic. Their affinity and lytic activity in zwitterionic vesicles decrease with the net electrical charges and the dose response curves are more cooperative for the less charged peptides. Higher charged peptides display higher affinity and lytic activity in anionic vesicles. The present study shows that the acidic residues play an important role in modulating the peptides' lytic and biological activities and influence differently when the peptide is hydrophobic or when the acidic residue is in a hydrophilic peptide.
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Affiliation(s)
- Natália Bueno Leite
- Department of Physics IBILCE, São Paulo State University, rua Cristóvão Colombo 2265, 15054-000, São José do Rio Preto, Brazil
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de Souza BM, Dos Santos Cabrera MP, Neto JR, Palma MS. Investigating the effect of different positioning of lysine residues along the peptide chain of mastoparans for their secondary structures and biological activities. Amino Acids 2010; 40:77-90. [PMID: 20108158 DOI: 10.1007/s00726-010-0481-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Accepted: 01/08/2010] [Indexed: 11/28/2022]
Abstract
In order to investigate the effect of the different positions of the positive charges generated by the ionization of the side-chain of lysine residues, on the structure-activity relationship of the mastoparans, the peptides Protonectarina-MP (INWKALLDAAKKVL-NH2), Parapolybia-MP (INWKKMAATALKMI-NH2) and Asn-2-Polybia-MP I (INWKKLLDAAKQIL-NH2) and MK-578 (INWLKAKKVAGMIL-NH2) were investigated as models. Thus, the four peptides had their secondary structure studied and were submitted to assays of mast cell degranulation, hemolysis, and antibiosis. The results of the bioassays made clear that those peptides bearing the positive charges positioned at the positions 4/5 and/or from 11 to 13 are the most active ones; meanwhile, the localization of the positive charges in the middle of peptide chain resulted in a poorly active peptide. Thus, Protonectarina-MP, Parapolybia-MP, and Asn-2-Polybia-MP I presented physiologically important hemolysis and antibiosis, while MK-578 presented only a reduced antibiotic activity. Circular dichroism analysis were carried-out in different environments revealing that the anionic environment of a mixture of phosphatidylcholine and phosphatidylglycerol (70:30) liposomes favored the higher helical content of the four peptides in this study in relation to the zwiterionic environment of 100% phosphatidylcholine liposomes. The positioning of the lysine residues at the strategic positions (4/5 and 11-13), flanking and maintaining stable α-helix which extends from the 4th to the 13th residue along the peptide chain, seems to contribute to maximal lytic efficiency of the mastoparans, which in turn results in a more homogeneous hydrophobic surface in the amphipathic structure.
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Affiliation(s)
- Bibiana Monson de Souza
- CEIS/Department of Biology, Institute of Biosciences of Rio Claro, São Paulo State University (UNESP), Avenue 24-A no 1515, Bela Vista, 13506-900, Rio Claro, SP, Brazil
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20
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de Souza BM, da Silva AVR, Resende VMF, Arcuri HA, Dos Santos Cabrera MP, Ruggiero Neto J, Palma MS. Characterization of two novel polyfunctional mastoparan peptides from the venom of the social wasp Polybia paulista. Peptides 2009; 30:1387-95. [PMID: 19463874 DOI: 10.1016/j.peptides.2009.05.008] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Revised: 05/07/2009] [Accepted: 05/07/2009] [Indexed: 10/20/2022]
Abstract
Hymenoptera venoms are complex mixtures of biochemically and pharmacologically active components such as biogenic amines, peptides and proteins. Polycationic peptides generally constitute the largest group of Hymenoptera venom toxins, and the mastoparans constitute the most abundant and important class of peptides in the venom of social wasps. These toxins are responsible for histamine release from mast cells, serotonin from platelets, and catecholamines and adenylic acids from adrenal chromafin cells. The present work reports the structural and functional characterization of two novel mastoparan peptides identified from the venom of the neotropical social wasp Polybia paulista. The mastoparans Polybia-MP-II and -III were purified, sequenced and synthesized on solid phase using Fmoc chemistry and the synthetic peptides used for structural and functional characterizations. Polybia-MP-II and -III are tetradecapeptides, amidated at their C-termini, and form amphipathic alpha-helical conformations under membrane-mimetic conditions. Both peptides were polyfunctional, causing pronounced cell lysis of rat mast cells and erythrocytes, in addition to having antimicrobial activity against both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Bibiana Monson de Souza
- CEIS/Dept. Biology, Institute of Biosciences of Rio Claro, São Paulo State University (UNESP), Rio Claro, SP, Brazil
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dos Santos Cabrera MP, Arcisio-Miranda M, Gorjão R, Leite NB, de Souza BM, Palma MS, Cury R, Neto JR, Procopio J. Influence Of The Bilayer Composition On The Membrane-Disruption Effect Of Polybia-MP1, A Mastoparan Peptide With Antimicrobial And Leukemic Cell Selectivity. Biophys J 2009. [DOI: 10.1016/j.bpj.2008.12.708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Monson de Souza B, Palma MS. Monitoring the positioning of short polycationic peptides in model lipid bilayers by combining hydrogen/deuterium exchange and electrospray ionization mass spectrometry. Biochimica et Biophysica Acta (BBA) - Biomembranes 2008; 1778:2797-805. [DOI: 10.1016/j.bbamem.2008.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 09/11/2008] [Accepted: 09/12/2008] [Indexed: 11/16/2022]
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dos Santos Cabrera MP, Costa STB, de Souza BM, Palma MS, Ruggiero JR, Ruggiero Neto J. Selectivity in the mechanism of action of antimicrobial mastoparan peptide Polybia-MP1. Eur Biophys J 2008; 37:879-91. [DOI: 10.1007/s00249-008-0299-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2007] [Revised: 02/10/2008] [Accepted: 02/26/2008] [Indexed: 10/22/2022]
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Rocha T, de Souza BM, Palma MS, da Cruz-Höfling MA. Myotoxic effects of mastoparan from Polybia paulista (Hymenoptera, Epiponini) wasp venom in mice skeletal muscle. Toxicon 2007; 50:589-99. [PMID: 17572466 DOI: 10.1016/j.toxicon.2007.05.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Revised: 05/02/2007] [Accepted: 05/08/2007] [Indexed: 11/28/2022]
Abstract
In a previous study, we showed that the Polybia paulista wasp venom causes strong myonecrosis. This study was undertaken to characterize the myotoxic potency of mastoparan (Polybia-MPII) isolated from venom (0.25 microg/microl) and injected in the tibial anterior (TA) muscle (i.m.) of Balb/c mice. The time course of the changes was followed at muscle degenerative (3 and 24h) and regenerative (3, 7, and 21 days) periods (n=6) after injection and compared to matched controls by calculation of the percentage of cross-sectional area affected and determination of creatine kinase (CK) activity (n=10). The results showed that although MP was strongly myotoxic, its capacity for regeneration was maintained high. Since the extent of tissue damage was not correlated with the CK serum levels, which remained very low, we raised the hypothesis that the enzyme underwent denaturation by the peptide. Evidence suggested that MP induced the death of TA fibers by necrosis and apoptosis and had the sarcolemma as its primordial target. Given its amphiphilic polycationic nature and based on the vast spectrum of functions attributed to the peptide, we suggest that MP interaction with cell membrane impaired the phosphorylation of dystrophin essential for sarcolemma mechanical stability, and disturbed Ca2+ mobilization with obvious implications on sarcoplasmic reticulum and mitochondrial functioning.
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Affiliation(s)
- Thalita Rocha
- Department of Histology and Embryology, Institute of Biology, P.O. Box 6109, State University of Campinas, Campinas, SP 13083-970, Brazil
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Volsi ECFR, Mendes MA, Marques MR, dos Santos LD, Santos KS, de Souza BM, Babieri EF, Palma MS. Multiple bradykinin-related peptides from the capture web of the spider Nephila clavipes (Araneae, Tetragnatidae). Peptides 2006; 27:690-7. [PMID: 16202476 DOI: 10.1016/j.peptides.2005.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2005] [Revised: 08/22/2005] [Accepted: 08/23/2005] [Indexed: 11/20/2022]
Abstract
Three bradykinin-related peptides (nephilakinins-I to -III) and bradykinin itself were isolated from the aqueous washing extract of the capture web of the spider Nephila clavipes by gel permeation chromatography on a Sephacryl S-100 column, followed by chromatography in a Hi-Trap Sephadex-G25 Superfine column. The novel peptides occurred in low concentrations and were sequenced through ESI-MS/MS analysis: nephilakinin-I (G-P-N-P-G-F-S-P-F-R-NH2), nephilakinin-II (E-A-P-P-G-F-S-P-F-R-NH2) and nephilakinin-III (P-S-P-P-G-F-S-P-F-R-NH2). Synthetic peptides replicated the novel bradykinin-related peptides, which were submitted to biological characterizations. Nephilakinins were shown to cause constriction on isolated rat ileum preparations and relaxation on rat duodenum muscle preparations at amounts higher than bradykinin; apparently these peptides constitute B2-type agonists of ileal and duodenal smooth muscles. All peptides including the bradykinin were moderately lethal to honeybees. These bradykinin peptides may be related to the predation of insects by the webs of N. clavipes.
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Affiliation(s)
- Evelyn C F R Volsi
- Institute of Immunological Investigations/MCT-CNPq, InCor-São Paulo University, São Paulo, SP, Brazil
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Mendes MA, de Souza BM, dos Santos LD, Santos KS, Palma MS. Analyzing glycerol-mediated protein oligomerization by electrospray ionization mass spectrometry. Rapid Commun Mass Spectrom 2005; 19:2636-42. [PMID: 16124036 DOI: 10.1002/rcm.2113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Glycerol is widely used as protein stabilizer, in both local and commercial preparations, so it has become necessary to develop methods for mass spectrometric analysis of protein preparations in the presence of glycerol. However, this stabilizing agent may cause signal suppression when present in high concentrations, and is also known to induce protein supercharging even at low concentrations. This work reports the use of electrospray ionization (ESI) mass spectrometry to characterize glycerol-mediated protein oligomerization. This phenomenon seems to involve the formation of strong non-covalent interactions between protein and glycerol involving close contact between the monomers, leading to formation of protein oligomers adducted with glycerol molecules under the characteristic analytical conditions of the ESI interface. At high orders of oligomerization a lower number of glycerol molecules is required to maintain the high oligomeric states than for the dimers and trimers, and it is possible that for the higher oligomers the monomers become so close to one another that non-covalent bonds between the side chains of the amino acid residues in the proteins may be established.
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Affiliation(s)
- Maria Anita Mendes
- Department of Biology, CEIS/IBRC, UNESP, Rio Claro, SP, CEP 13506-900, Brazil
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Mendes MA, de Souza BM, Palma MS. Structural and biological characterization of three novel mastoparan peptides from the venom of the neotropical social wasp Protopolybia exigua (Saussure). Toxicon 2005; 45:101-6. [PMID: 15581688 DOI: 10.1016/j.toxicon.2004.09.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The venom of the Neotropical social wasp Protopolybia exigua(Saussure) was fractionated by RP-HPLC resulting in the elution of 20 fractions. The homogeneity of the preparations were checked out by using ESI-MS analysis and the fractions 15, 17 and 19 (eluted at the most hydrophobic conditions) were enough pure to be sequenced by Edman degradation chemistry, resulting in the following sequences: Protopolybia MPI I-N-W-L-K-L-G-K-K-V-S-A-I-L-NH2 Protopolybia-MP II I-N-W-K-A-I-I-E-A-A-K-Q-A-L-NH2 Protopolybia-MP III I-N-W-L-K-L-G-K-A-V-I-D-A-L-NH2 All the peptides were manually synthesized on-solid phase and functionally characterized. Protopolybia-MP I is a hemolytic mastoparan, probably acting on mast cells by assembling in plasma membrane, resulting in pore formation; meanwhile, the peptides Protopolybia-MP II and -MP III were characterized as a non-hemolytic mast cell degranulator toxins, which apparently act by virtue of their binding to G-protein receptor, activating the mast cell degranulation.
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Affiliation(s)
- Maria Anita Mendes
- CEIS-Department of Biology, IBRC-UNESP (CAT-CEPID/FAPESP), Institute of Immunological Investigations (Millennium Institute-MCT/CNPq), Rio Claro, SP 13506-900, Brazil
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Santos KS, dos Santos LD, Mendes MA, de Souza BM, Malaspina O, Palma MS. Profiling the proteome complement of the secretion from hypopharyngeal gland of Africanized nurse-honeybees (Apis mellifera L.). Insect Biochem Mol Biol 2005; 35:85-91. [PMID: 15607658 DOI: 10.1016/j.ibmb.2004.10.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2004] [Revised: 10/05/2004] [Accepted: 10/07/2004] [Indexed: 05/24/2023]
Abstract
The protein complement of the secretion from hypopharyngeal gland of nurse-bees (Apis mellifera L.) was partially identified by using a combination of 2D-PAGE, peptide sequencing by MALDI-PSD/MS and a protein engine identification tool applied to the honeybee genome. The proteins identified were compared to those proteins already identified in the proteome complement of the royal jelly of the honey bees. The 2-D gel electrophoresis demonstrated this protein complement is constituted of 61 different polypepides, from which 34 were identified as follows: 27 proteins belonged to MRJPs family, 5 proteins were related to the metabolism of carbohydrates and to the oxido-reduction metabolism of energetic substrates, 1 protein was related to the accumulation of iron in honeybee bodies and 1 protein may be a regulator of MRJP-1 oligomerization. The proteins directly involved with the carbohydrates and energetic metabolisms were: alpha glucosidase, glucose oxidase and alpha amylase, whose are members of the same family of enzymes, catalyzing the hydrolysis of the glucosidic linkages of starch; alcohol dehydrogenase and aldehyde dehydrogenase, whose are constituents of the energetic metabolism. The results of the present manuscript support the hypothesis that the most of these proteins are produced in the hypoharyngeal gland of nurse-bees and secreted into the RJ.
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Affiliation(s)
- Keity Souza Santos
- Center of Study of Social Insects (CEIS) Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), 13506900 Rio Claro, SP, Brazil
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Ribeiro SP, Mendes MA, Dos Santos LD, de Souza BM, Marques MR, de Azevedo WF, Palma MS. Structural and functional characterization of N-terminally blocked peptides isolated from the venom of the social wasp Polybia paulista. Peptides 2004; 25:2069-78. [PMID: 15572194 DOI: 10.1016/j.peptides.2004.08.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2004] [Revised: 08/20/2004] [Accepted: 08/24/2004] [Indexed: 11/17/2022]
Abstract
Two novel peptides were isolated from the crude venom of the social wasp Polybia paulista, by using RP-HPLC under a gradient of MeCN from 5 to 60% (v/v) and named Polybine-I and -II. Further purification of these peptides under normal phase chromatography, rendered pure enough preparations to be sequenced by Edman degradation chemistry. However, both peptides did not interact with phenylisothiocyanate reagent, suggesting the existence of a chemically blocked N-terminus. Therefore, the sequences of both peptides were assigned by ESI-MS/MS under CID conditions, as follows: Polybine-I Ac-SADLVKKIWDNPAL-NH2 (Mr 1610 Da) and Polybine-II Ac-SVDMVMKGLKIWPL-NH2 (Mr 1657 Da). During the tandem mass spectrometry experiments, a loss of 43 a.m.u. was observed from the N-terminal residue of each peptide, suggesting the acetylation of the N-terminus. Subsequently, the peptides with and without acetylation were synthesized on solid phase and submitted to functional characterizations; the biological activities investigated were: hemolysis, chemotaxis of polymorphonucleated leukocytes (PMNL), mast cell degranulation and antibiosis. The results revealed that the acetylated peptides exhibited more pronounced chemotaxis of PMNL cells and mast cell degranulation than the respective non-acetylated congeners; no hemolytic and antibiotic activities were observed, irrespective to the blockage or not of the alpha-amino groups of the N-terminal residues of each peptide. Therefore, the N-terminal acetylation may be related to the increase of the inflammatory activity of both peptides.
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Mendes MA, de Souza BM, Marques MR, Palma MS. Structural and biological characterization of two novel peptides from the venom of the neotropical social wasp Agelaia pallipes pallipes. Toxicon 2004; 44:67-74. [PMID: 15225564 DOI: 10.1016/j.toxicon.2004.04.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2004] [Revised: 04/15/2004] [Accepted: 04/21/2004] [Indexed: 11/30/2022]
Abstract
The venom of the neotropical social wasp Agelaia pallipes pallipes was fractionated by RP-HPLC resulting in the elution of seven fractions; the last two were re-fractionated under RP-HPLC by using isocratic elution conditions and the purity of the fractions were confirmed by using ESI-MS analysis. Both fractions are constituted of peptide components, which were sequenced by Edman degradation chemistry, resulting in the following sequences: Protonectin I-L-G-T-I-L-G-L-L-K-G-L-NH(2). Agelaia-MP I-N-W-L-K-L-G-K-A-I-I-D-A-L-NH(2). Both peptides are manually synthesized on solid-phase and functionally characterized by using Wistar rats cells. Protonectin is a non-hemolytic chemotactic peptide for polymorphonucleated leukocytes (PMNL), presenting some mast cell degranulating activity and potent antimicrobial action both against Gram-positive and Gram-negative bacteria. Agelaia-MP was characterized as a hemolytic mast cell degranulator toxin, presenting a poor antimicrobial action and no chemotaxis for PMNL.
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Affiliation(s)
- Maria Anita Mendes
- CEIS-Department of Biology, IBRC-UNESP (CAT-CEPID, FAPESP), Institute of Immunological Investigations (Millennium Institute-MCT, CNPq), Rio Claro, SP 13506-900, Brazil
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Fontana R, Mendes MA, de Souza BM, Konno K, César LMM, Malaspina O, Palma MS. Jelleines: a family of antimicrobial peptides from the Royal Jelly of honeybees (Apis mellifera). Peptides 2004; 25:919-28. [PMID: 15203237 DOI: 10.1016/j.peptides.2004.03.016] [Citation(s) in RCA: 174] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2004] [Revised: 03/25/2004] [Accepted: 03/29/2004] [Indexed: 10/26/2022]
Abstract
Four antimicrobial peptides were purified from Royal Jelly of honeybees, by using reverse phase-HPLC and sequenced by using Q-Tof-MS/MS: PFKLSLHL-NH(2) (Jelleine-I), TPFKLSLHL-NH(2) (Jelleine-II), EPFKLSLHL-NH(2) (Jelleine-III), and TPFKLSLH-NH(2) (Jelleine-IV). The peptides were synthesized on-solid phase, purified and submitted to different biological assays: antimicrobial activity, mast cell degranulating activity and hemolysis. The Jelleines-I-III presented exclusively antimicrobial activities against yeast, Gram+ and Gram- bacteria; meanwhile, Jelleine-IV was not active in none of the assays performed. These peptides do not present any similarity with the other antimicrobial peptides from the honeybees; they are produced constitutively by the workers and secreted into Royal Jelly.
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de Souza BM, Marques MR, Tomazela DM, Eberlin MN, Mendes MA, Palma MS. Mass spectrometric characterization of two novel inflammatory peptides from the venom of the social wasp Polybia paulista. Rapid Commun Mass Spectrom 2004; 18:1095-1102. [PMID: 15150833 DOI: 10.1002/rcm.1452] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The social wasp P. paulista is relatively common in southeast Brazil causing many medically important stinging incidents. The seriousness of these incidents is dependent on the amount of venom inoculated by the wasps into the victims, and the characteristic envenomation symptoms are strongly dependent on the types of peptides present in the venom. In order to identify some of these naturally occurring peptides available in very low amounts, an analytical protocol was developed that uses a combination of reversed-phase and normal-phase high-performance liquid chromatography (HPLC) of wasp venom for peptide purification, with matrix-assisted laser desorption/ionization time-of-flight post-source decay mass spectrometry (MALDI-Tof-PSD-MS) and low-energy collision-induced dissociation (CID) in a quadrupole time-of-flight tandem mass spectrometry (QTof-MS/MS) instrument for peptide sequencing at the sub-picomole level. The distinction between Leu and Ile was achieved both by observing d-type fragment ions obtained under CID conditions and by comparison of retention times of the natural peptides and their synthetic counterparts (with different combinations of I and/or L at N- and C-terminal positions). To distinguish the isobaric residues K and Q, acetylation of peptides was followed by Q-Tof-MS analysis. The primary sequences obtained were INWLKLGKMVIDAL-NH(2) (MW 1611.98 Da) and IDWLKLGKMVMDVL-NH(2) (MW 1658.98 Da). Micro-scale bioassay protocols characterized both peptides as presenting potent hemolytic action, mast cell degranulation, and chemotaxis of polymorphonucleated leukocyte (PMNL) cells. The primary sequences and the bioassay results suggest that these toxins constitute members of a new sub-class of mastoparan toxins, directly involved in the occurrence of inflammatory processes after wasp stinging.
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Affiliation(s)
- Bibiana Monson de Souza
- CEIS/Department of Biology, IBRC-UNESP, CAT (CEPID/FAPESP), Institute of Immunological Investigation (Millennium Institute/CNPq), Rio Claro/SP, 13506-900, Brazil
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Mendes MA, Monson de Souza B, Delazari dos Santos L, Palma MS. Structural characterization of novel chemotactic and mastoparan peptides from the venom of the social wasp Agelaiapallipes pallipes by high-performance liquid chromatography/electrospray ionization tandem mass spectrometry. Rapid Commun Mass Spectrom 2004; 18:636-642. [PMID: 15052574 DOI: 10.1002/rcm.1382] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
High-performance liquid chromatography/electrospray ionization mass spectrometry (HPLC/ESI-MS) and high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) techniques were applied for the detection, purification, monitoring, and sequencing of two novel and biologically active peptides occurring at very low levels in the venom of the wasp Agelaia pallipes pallipes. These peptides were sequenced under LC/ESI-MS/MS conditions and designated as Agelaia-CP (I/L-L-G-T-I-L-G-L-L-K-G-I/L-NH2, MW 1207.8 Da) and Agelaia-MP (I/L-N-W-L-K-L-G-K-A-I-I-D-A-I/L-NH2, MW 1565.0 Da). The peptide Agelaia-CP showed no hemolytic activity, but it behaved as a mast cell degranulator and induced a potent chemotaxis in polymorphonucleated leukocyte (PMNL) cells, typical of a wasp chemotactic peptide. The peptide Agelaia-MP showed both powerful mast cell degranulation and hemolysis of washed rat red blood cells, and is thus assigned as a new member of the mastoparan family of peptides. Both peptides seem to be directly involved in the strong inflammatory reactions associated with wasp stings.
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Affiliation(s)
- Maria Anita Mendes
- CEIS-Department of Biology/IBRC-UNESP (CAT-CEPID/FAPESP), Institute of Immunological Investigations (Millennium Institute-MCT/CNPq), Rio Claro/SP 13506-900 Brazil
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