1
|
In Vitro Study of Cytotoxic Mechanisms of Alkylphospholipids and Alkyltriazoles in Acute Lymphoblastic Leukemia Models. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238633. [PMID: 36500726 PMCID: PMC9737184 DOI: 10.3390/molecules27238633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 12/12/2022]
Abstract
This study investigates the efficacy of miltefosine, alkylphospholipid, and alkyltriazolederivative compounds against leukemia lineages. The cytotoxic effects and cellular and molecular mechanisms of the compounds were investigated. The inhibitory potential and mechanism of inhibition of cathepsins B and L, molecular docking simulation, molecular dynamics and binding free energy evaluation were performed to determine the interaction of cathepsins and compounds. Among the 21 compounds tested, C9 and C21 mainly showed cytotoxic effects in Jurkat and CCRF-CEM cells, two human acute lymphoblastic leukemia (ALL) lineages. Activation of induced cell death by C9 and C21 with apoptotic and necrosis-like characteristics was observed, including an increase in annexin-V+propidium iodide-, annexin-V+propidium iodide+, cleaved caspase 3 and PARP, cytochrome c release, and nuclear alterations. Bax inhibitor, Z-VAD-FMK, pepstatin, and necrostatin partially reduced cell death, suggesting that involvement of the caspase-dependent and -independent mechanisms is related to cell type. Compounds C9 and C21 inhibited cathepsin L by a noncompetitive mechanism, and cathepsin B by a competitive and noncompetitive mechanism, respectively. Complexes cathepsin-C9 and cathepsin-C21 exhibited significant hydrophobic interactions, water bridges, and hydrogen bonds. In conclusion, alkyltriazoles present cytotoxic activity against acute lymphoblastic lineages and represent a promising scaffold for the development of molecules for this application.
Collapse
|
2
|
Perez-Rodriguez A, Eraso E, Quindós G, Mateo E. Antimicrobial Peptides with Anti-Candida Activity. Int J Mol Sci 2022; 23:ijms23169264. [PMID: 36012523 PMCID: PMC9409312 DOI: 10.3390/ijms23169264] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/10/2022] [Accepted: 08/13/2022] [Indexed: 02/06/2023] Open
Abstract
Mycoses are accountable for millions of infections yearly worldwide. Invasive candidiasis is the most usual, presenting a high morbidity and mortality. Candida albicans remains the prevalent etiologic agent, but the incidence of other species such as Candida parapsilosis, Candida glabrata and Candida auris keeps increasing. These pathogens frequently show a reduced susceptibility to commonly used antifungal drugs, including polyenes, triazoles and echinocandins, and the incidence of emerging multi-drug-resistant strains of these species continues to increase. Therefore, the need to search for new molecules that target these pathogenic species in a different manner is now more urgent than ever. Nature is an almost endless source of interesting new molecules that could meet this need. Among these molecules, antimicrobial peptides, present in different sources in nature, possess some advantages over conventional antifungal agents, even with their own drawbacks, and are considered as a promising pharmacological option against a wide range of microbial infections. In this review, we describe 20 antimicrobial peptides from different origins that possess an activity against Candida.
Collapse
|
3
|
Moral-Sanz J, Fernandez-Rojo MA, Colmenarejo G, Kurdyukov S, Brust A, Ragnarsson L, Andersson Å, Vila SF, Cabezas-Sainz P, Wilhelm P, Vela-Sebastian A, Fernández-Carrasco I, Chin YKY, López-Mancheño Y, Smallwood TB, Clark RJ, Fry BG, King GF, Ramm GA, Alewood PF, Lewis RJ, Mulvenna JP, Boyle GM, Sanchez LE, Neely GG, Miles JJ, Ikonomopoulou MP. The structural conformation of the tachykinin domain drives the anti-tumoral activity of an octopus peptide in melanoma BRAF V600E. Br J Pharmacol 2022; 179:4878-4896. [PMID: 35818835 DOI: 10.1111/bph.15923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 04/22/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Over the past decades, targeted therapies and immunotherapy have vastly improved survival and reduced the morbidity of patients with BRAF-mutated melanoma. However, drug resistance and relapse hinder overall success. Therefore, there is an urgent need for novel compounds with therapeutic efficacy against BRAF- melanoma. This prompted us to investigate the antiproliferative profile of a tachykinin-peptide from the Octopus kaurna, Octpep-1 in melanoma. EXPERIMENTAL APPROACH We evaluated the cytotoxicity of Octpep-1 by MTT assay. Mechanistic insights on viability and cellular damage caused by Octpep-1 were gained via flow cytometry and bioenergetics. Structural and pharmacological characterization was conducted by molecular modelling, molecular biology, CRISPR/Cas9 technology, high-throughput mRNA and calcium flux analysis. In-vivo efficacy was validated in two independent xerograph animal models (mice and zebrafish). KEY RESULTS Octpep-1 selectively reduced the proliferative capacity of human melanoma BRAFV600E -mutated cells with minimal effects on fibroblasts. In melanoma-treated cells, Octpep-1 increased ROS with unaltered mitochondrial membrane potential and promoted non-mitochondrial and mitochondrial respiration with inefficient ATP coupling. Despite similarities with tachykinin peptides, knock-out or pharmacological blockade of tachykinin receptors suggested that Octpep-1 acts via a tachykinin-independent mechanism. Molecular modelling revealed that the cytotoxicity of Octpep-1 depends upon the α-helix and polyproline conformation in the C-terminal region of the peptide. Indeed, a truncated form of the C-terminal end of Octpep-1 displayed enhanced potency and efficacy against melanoma. Octpep-1 reduced the progression of tumors in xenograft melanoma mice and zebrafish, confirming its therapeutic potential in human BRAF-mutated melanoma. CONCLUSION AND IMPLICATIONS We unravel the intrinsic anti-tumoral properties of a tachykinin peptide, possessing a pharmacology independent of tachykinin-receptors. This peptide mediates the selective cytotoxicity in BRAF-mutated melanoma in-vitro and prevents tumor progression in-vivo, providing the foundation for a potential therapy against melanoma.
Collapse
Affiliation(s)
- Javier Moral-Sanz
- Translational Venomics Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain
| | - Manuel A Fernandez-Rojo
- Hepatic Regenerative Medicine Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain.,Hepatic Fibrosis Group, Department of Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Queensland, Australia.,Diamantina Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Gonzalo Colmenarejo
- Biostatistics & Bioinformatics Unit, Madrid Institute for Advances Studies in Food, Madrid, Spain
| | - Sergey Kurdyukov
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, NSW, Australia
| | - Andreas Brust
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Lotten Ragnarsson
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Åsa Andersson
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Sabela F Vila
- Translational Venomics Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain.,Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, Lugo, Spain
| | - Pablo Cabezas-Sainz
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, Lugo, Spain
| | - Patrick Wilhelm
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Ana Vela-Sebastian
- Translational Venomics Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain
| | | | - Yanni K Y Chin
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia.,Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD, Australia
| | - Yaiza López-Mancheño
- Hepatic Regenerative Medicine Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain
| | - Taylor B Smallwood
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Richard J Clark
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia.,School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Bryan G Fry
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Glenn F King
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, QLD, Australia
| | - Grant A Ramm
- Hepatic Fibrosis Group, Department of Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Queensland, Australia.,Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Paul F Alewood
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Richard J Lewis
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Jason P Mulvenna
- Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Glen M Boyle
- Department of Cell and Molecular Biology, Cancer Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Laura E Sanchez
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, Lugo, Spain
| | - G Gregory Neely
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, NSW, Australia
| | - John J Miles
- Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.,James Cook University, Centre for Biodiscovery and Molecular Development of Therapeutics and Centre for Biosecurity in Tropical Infectious Diseases, Cairns, Australia.,The Australian Institute of Tropical Health and Medicine (AITHM), James Cook University, Cairns, QLD, Australia.,Centre for Molecular Therapeutics, James Cook University, Cairns, QLD, Australia.,Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Cairns, QLD, Australia
| | - Maria P Ikonomopoulou
- Translational Venomics Group, Madrid Institute for Advanced Studies in Food, Madrid, Spain.,Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia.,Department of Cell and Molecular Biology, Cancer Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| |
Collapse
|
4
|
Ramazi S, Mohammadi N, Allahverdi A, Khalili E, Abdolmaleki P. A review on antimicrobial peptides databases and the computational tools. Database (Oxford) 2022; 2022:6550847. [PMID: 35305010 PMCID: PMC9216472 DOI: 10.1093/database/baac011] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/04/2022] [Accepted: 02/28/2022] [Indexed: 12/29/2022]
Abstract
Antimicrobial Peptides (AMPs) have been considered as potential alternatives for infection therapeutics since antibiotic resistance has been raised as a global problem. The AMPs are a group of natural peptides that play a crucial role in the immune system in various organisms AMPs have features such as a short length and efficiency against microbes. Importantly, they have represented low toxicity in mammals which makes them potential candidates for peptide-based drugs. Nevertheless, the discovery of AMPs is accompanied by several issues which are associated with labour-intensive and time-consuming wet-lab experiments. During the last decades, numerous studies have been conducted on the investigation of AMPs, either natural or synthetic type, and relevant data are recently available in many databases. Through the advancement of computational methods, a great number of AMP data are obtained from publicly accessible databanks, which are valuable resources for mining patterns to design new models for AMP prediction. However, due to the current flaws in assessing computational methods, more interrogations are warranted for accurate evaluation/analysis. Considering the diversity of AMPs and newly reported ones, an improvement in Machine Learning algorithms are crucial. In this review, we aim to provide valuable information about different types of AMPs, their mechanism of action and a landscape of current databases and computational tools as resources to collect AMPs and beneficial tools for the prediction and design of a computational model for new active AMPs.
Collapse
Affiliation(s)
- Shahin Ramazi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14115-111, Iran
| | - Neda Mohammadi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences, Hemmat Highway, Tehran 1449614535, Iran,Institute of Pharmacology and Toxicology, University of Bonn, Biomedical Center, Venusberg Campus 1, Bonn 53127, Germany
| | - Abdollah Allahverdi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14115-111, Iran
| | - Elham Khalili
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14115-111, Iran
| | | |
Collapse
|
5
|
Buri MV, Sperandio LP, de Souza KFS, Antunes F, Rezende MM, Melo CM, Pinhal MAS, Barros CC, Fernig DG, Yates EA, Ide JS, Smaili SS, Riske KA, Nader HB, Luis Dos Santos Tersariol I, Lima MA, Judice WAS, Miranda A, Paredes-Gamero EJ. Endocytosis and the Participation of Glycosaminoglycans Are Important to the Mechanism of Cell Death Induced by β-Hairpin Antimicrobial Peptides. ACS APPLIED BIO MATERIALS 2021; 4:6488-6501. [PMID: 35006908 DOI: 10.1021/acsabm.1c00390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cytotoxic mode of action of four antimicrobial peptides (AMPs) (gomesin, tachyplesin, protegrin, and polyphemusin) against a HeLa cell tumor model is discussed. A study of cell death by AMP stimulation revealed some similarities, including annexin-V externalization, reduction of mitochondrial potential, insensitivity against inhibitors of cell death, and membrane permeabilization. Evaluation of signaling proteins and gene expression that control cell death revealed wide variation in the responses to AMPs. However, the ability to cross cell membranes emerged as an important characteristic of AMP-dependent cell death, where endocytosis mediated by dynamin is a common mechanism. Furthermore, the affinity between AMPs and glycosaminoglycans (GAGs) and GAG participation in the cytotoxicity of AMPs were verified. The results show that, despite their primary and secondary structure homology, these peptides present different modes of action, but endocytosis and GAG participation are an important and common mechanism of cytotoxicity for β-hairpin peptides.
Collapse
Affiliation(s)
- Marcus Vinicius Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Letícia Paulino Sperandio
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil.,Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Kamylla F S de Souza
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Fernanda Antunes
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Marina Mastelaro Rezende
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Carina Mucciolo Melo
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Maria A S Pinhal
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Departmento de Bioquímica, Faculdade de Medicina Do ABC, Santo André 09060-870, Brazil
| | - Carlos C Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, No1, Pelotas 96010-610, Rio Grande do Sul, Brazil
| | - David G Fernig
- Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Edwin A Yates
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut 06519, United States
| | - Soraya S Smaili
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Helena B Nader
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | | | - Marcelo Andrade Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Wagner A S Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil
| |
Collapse
|
6
|
Torres MDT, Cao J, Franco OL, Lu TK, de la Fuente-Nunez C. Synthetic Biology and Computer-Based Frameworks for Antimicrobial Peptide Discovery. ACS NANO 2021; 15:2143-2164. [PMID: 33538585 PMCID: PMC8734659 DOI: 10.1021/acsnano.0c09509] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Antibiotic resistance is one of the greatest challenges of our time. This global health problem originated from a paucity of truly effective antibiotic classes and an increased incidence of multi-drug-resistant bacterial isolates in hospitals worldwide. Indeed, it has been recently estimated that 10 million people will die annually from drug-resistant infections by the year 2050. Therefore, the need to develop out-of-the-box strategies to combat antibiotic resistance is urgent. The biological world has provided natural templates, called antimicrobial peptides (AMPs), which exhibit multiple intrinsic medical properties including the targeting of bacteria. AMPs can be used as scaffolds and, via engineering, can be reconfigured for optimized potency and targetability toward drug-resistant pathogens. Here, we review the recent development of tools for the discovery, design, and production of AMPs and propose that the future of peptide drug discovery will involve the convergence of computational and synthetic biology principles.
Collapse
Affiliation(s)
- Marcelo D T Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jicong Cao
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering and Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Octavio L Franco
- Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, DF 70790160, Brazil
- S-inova Biotech, Universidade Católica Dom Bosco, Campo Grande, MS 79117010, Brazil
| | - Timothy K Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering and Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
7
|
Rodríguez-Álvarez Y, Cabrales-Rico A, Diago-Abreu D, Correa-Arguelles E, Reyes-Acosta O, Puente-Pérez P, Pichardo-Díaz D, Urquiza-Noa D, Hernández-Santana A, Garay-Pérez HE. d-Amino acid substitutions and dimerization increase the biological activity and stability of an IL-15 antagonist peptide. J Pept Sci 2020; 27:e3293. [PMID: 33331098 DOI: 10.1002/psc.3293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/20/2020] [Accepted: 11/13/2020] [Indexed: 12/26/2022]
Abstract
Interleukin (IL)-15 plays an important role in several inflammatory diseases. We have previously identified an IL-15 antagonist called P8 peptide, which binds specifically to IL-15 receptor alpha subunit. However, the P8 peptide rapidly degraded by proteases, limiting its therapeutic application. Thus, we replaced each P8 peptide l-amino acid by its corresponding d-isomers. First, we determined the biological activity of the resulting peptides in a proliferation assay by using CTLL-2 cells. The substitution of l-Ala by d-Ala ([A4a]P8 peptide) increased the inhibitory effect of the P8 peptide in CTLL-2 cells in five-fold. In addition to that, the [A4a]P8 peptide dimer showed the most inhibitory effect. To protect the [A4a]P8 peptide and its dimer against exopeptidase activity, we acetylated the N-terminal of these peptides. At least a three-fold reduction in antagonist activity of acetylated peptides was exhibited. However, the substitution of the N-terminal l-Lys residue of [A4a]P8 peptide and its dimer by d-Lys ([K1k;A4a]P8 peptide) did not affect the antagonist effect of the aforementioned peptides. The [K1k;A4a]P8 peptide dimer was stable to the degradation of trypsin, chymotrypsin, and pepsin up until 48 min. Also, the safety and immunogenicity studies in healthy BALB/c mice demonstrated that the administration of this peptide did not affect the clinical parameters of the animals nor generated antipeptide antibodies. Our findings reveal that two distinct d-amino acid substitutions and dimerization increase the biological activity and stability of P8 peptide. The resulting peptide constitutes a novel IL-15 antagonist with potential applicability in inflammatory diseases.
Collapse
Affiliation(s)
| | - Ania Cabrales-Rico
- Chemistry and Physics Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - David Diago-Abreu
- Chemistry and Physics Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | | | - Osvaldo Reyes-Acosta
- Chemistry and Physics Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Pedro Puente-Pérez
- Animal Facility Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Dagmara Pichardo-Díaz
- Animal Facility Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Dioslaida Urquiza-Noa
- Animal Facility Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | | | - Hilda E Garay-Pérez
- Chemistry and Physics Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| |
Collapse
|
8
|
Antimicrobial and antitumor activity of peptidomimetics synthesized from amino acids. Bioorg Chem 2020; 106:104506. [PMID: 33276980 DOI: 10.1016/j.bioorg.2020.104506] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/24/2020] [Accepted: 11/19/2020] [Indexed: 12/20/2022]
Abstract
Thirteen cationic peptidomimetics derived from amino acids bearing an alkyl or ethynylphenyl moiety that mimic the structure of cationic antibacterial peptides were designed and synthesized using a simple coupling reaction of an amino acid with a substituted amine. Antibacterial activities of the resulting peptidomimetics against drug-sensitive bacteria, such as Gram-positive Staphylococcus aureus (S. aureus) and Bacillus subtilis, Gram-negative Escherichia coli (E. coli) and Salmonella enterica, and a drug-resistant bacterium, methicillin-resistant S. aureus (MRSA), were systematically evaluated. Most peptidomimetics show significant broad-spectrum antibacterial activity. A-L-Iso-C12 (isoleucine derivative bearing a dodecyl moiety) show MICs of 2.5 μg/mL against S. aureus and 4 μg/mL against MRSA and A-L-Val-C12 (valine derivative bearing a dodecyl moiety) show MICs of 1.67 μg/mL against E. coli and 8.3 μg/mL against MRSA. A-L-Val-C12 showed low cytotoxicity toward L929 cells in comparison with SGC 7901 cells, indicating tumor-directed killing by peptidomimetics while avoiding toxicity to normal cells. The influences of type of amino acid and substituent, length of substituent, and stereochemistry of amino acids on antibacterial activity and cytotoxicity of peptidomimetics were systematically investigated. The results indicate that this series of cationic peptidomimetics derived from amino acids display antitumor activity and may be useful for treatment of bacterial infections.
Collapse
|
9
|
Dong Z, Hu H, Yu X, Tan L, Ma C, Xi X, Li L, Wang L, Zhou M, Chen T, Du S, Lu Y. Novel Frog Skin-Derived Peptide Dermaseptin-PP for Lung Cancer Treatment: In vitro/vivo Evaluation and Anti-tumor Mechanisms Study. Front Chem 2020; 8:476. [PMID: 32582642 PMCID: PMC7291860 DOI: 10.3389/fchem.2020.00476] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 05/07/2020] [Indexed: 01/10/2023] Open
Abstract
Lung cancer is the major cause of cancer deaths worldwide, and it has the highest incidence and mortality rate of any cancer among men and women in China. The first-line therapy for lung cancer treatment is platinum-based chemotherapy drugs such as cisplatin. However, the application of present chemotherapies is limited by severe side effects, which stimulates the discovery of new drugs with new anti-tumor mechanisms and fewer side effects. Beneficially, many antimicrobial peptides (AMPs) from frog skin have been reported to exhibit potent anti-cancer activities with low toxicity, high selectivity and a low propensity to induce resistance. In this study, we first reported an AMP named Dermaseptin-PP, from a rarely studied frog species, Phyllomedusa palliata. Dermaseptin-PP exhibited selective cytotoxicity on H157, MCF-7, PC-3, and U251 MG cancer cells instead of normal HMEC-1 cells with low hemolytic effect. Furthermore, on subcutaneous H157 tumor model of nude mice, Dermaseptin-PP was found to display potent in vivo anti-tumor activity in a dose-related manner without obvious hepatopulmonary side effects. It is widely accepted that AMPs usually work through a membrane disruptive mode, and the confocal laser microscope observation confirmed that Dermaseptin-PP could destroy H157 cell membranes. Further investigation of mechanisms by flow cytometry assay and immunohistochemical analysis unraveled that Dermaseptin-PP also exerted its anti-tumor activity by inducing H157 cell apoptosis via both endogenous mitochondrial apoptosis pathway and exogenous death receptor apoptosis pathway. Herein, we emphasize that the membrane disrupting and the apoptosis activation effects of Dermaseptin-PP both depend on its concentration. Overall, a novel frog skin-derived AMP, named Dermaseptin-PP, was identified for the first time. It possesses strong antimicrobial activity and effective anti-tumor activity by distinct mechanisms. This study revealed the possibility of Dermaseptin-PP for lung cancer treatment and provided a new perspective for designing novel AMP-based anti-tumor candidates with low risk of cytotoxicity.
Collapse
Affiliation(s)
- Ziyi Dong
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Haiyan Hu
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xianglong Yu
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Li Tan
- Livzon Pharmaceutical Group Inc., Zhuhai, China
| | - Chengbang Ma
- Natural Drug Discovery Group, School of Pharmacy, Queen's University, Belfast, United Kingdom
| | - Xinping Xi
- Natural Drug Discovery Group, School of Pharmacy, Queen's University, Belfast, United Kingdom
| | - Lei Li
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Lei Wang
- Natural Drug Discovery Group, School of Pharmacy, Queen's University, Belfast, United Kingdom
| | - Mei Zhou
- Natural Drug Discovery Group, School of Pharmacy, Queen's University, Belfast, United Kingdom
| | - Tianbao Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen's University, Belfast, United Kingdom
| | - Shouying Du
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yang Lu
- Laboratory of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
10
|
Zhang S, Fu L, Wan M, Song J, Gao L, Fang W. Peripheral Antimicrobial Peptide Gomesin Induces Membrane Protrusion, Folding, and Laceration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13233-13242. [PMID: 31510749 DOI: 10.1021/acs.langmuir.9b02175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Optical microscopy shows that the peripheral antimicrobial peptide (AMP) gomesin does not disrupt the bacterial membrane by forming stable transmembrane pores but induces lipid accumulation domains, which is followed by a sudden burst near the domains. The molecular action mechanisms of gomesin on vesicle and planar bilayer membranes are investigated in this work using coarse-grained molecular dynamics simulations. By comparing the membrane morphology and property changes induced by gomesin and the pore-forming AMP melittin, we determined that the amphiphilic shape of the AMPs is a key factor affecting the mechanism of cell death. The binding of wedge-shaped gomesin, with a small hydrophobic surface, onto the membrane induces protrusion and folding of the outer monolayer followed by sudden membrane lacerations at the axillae of the protuberances. Alternatively, cylinder-shaped melittins with comparable hydrophilic and hydrophobic surfaces destroy membranes by forming stable pores coexisting with exocytosis-like buddings and endocytosis-like invaginations. The multiple actions of AMPs on the bacterial membrane suggest diverse paradigms for designing molecular carriers for delivering drugs to the cell.
Collapse
Affiliation(s)
- Shan Zhang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| | - Lei Fu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| | - Mingwei Wan
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| | - Junjie Song
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| | - Lianghui Gao
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| | - Weihai Fang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , 19 Xin-Jie-Kou-Wai Street , Beijing 100875 , China
| |
Collapse
|
11
|
Perets EA, Videla PE, Yan ECY, Batista VS. Chiral Inversion of Amino Acids in Antiparallel β-Sheets at Interfaces Probed by Vibrational Sum Frequency Generation Spectroscopy. J Phys Chem B 2019; 123:5769-5781. [PMID: 31194546 PMCID: PMC9059514 DOI: 10.1021/acs.jpcb.9b04029] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A parallel study of protein variants with all (l-), all (d-), or mixed (l-)/(d-) amino acids can be used to assess how backbone architecture versus side chain identity determines protein structure. Here, we investigate the secondary structure and side chain orientation dynamics of the antiparallel β-sheet peptide LK7β (Ac-Leu-Lys-Leu-Lys-Leu-Lys-Leu-NH2) composed of all (l-), all (d-), or alternating (l-Leu)/(d-Lys) amino acids. Using interface-selective vibrational sum frequency generation spectroscopy (VSFG), we observe that the alternating (l-)/(d-) peptide lacks a resonant C-H stretching mode compared to the (l-) and (d-) variants and does not form antiparallel β-sheets. We rationalize our observations on the basis of density functional theory calculations and molecular dynamics (MD) simulations of LK7β at the air-water interface. Irrespective of the handedness of the amino acids, leucine side chains prefer to orient toward the hydrophobic air phase while lysine side chains prefer the hydrophilic water phase. These preferences dictate the backbone configuration of LK7β and thereby the folding of the peptide. Our MD simulations show that the preferred side chain orientations can force the backbone of a single strand of (l-) LK7β at the air-water interface to adopt β-sheet Ramachandran angles. However, denaturation of the β-sheets at pH = 2 results in a negligible chiral VSFG amide I response. The combined computational and experimental results lend critical support to the theory that a chiral VSFG response requires macroscopic chirality, such as in β-sheets. Our results can guide expectations about the VSFG optical responses of proteins and should improve understanding of how amino acid chirality modulates the structure and function of natural and de novo proteins at biological interfaces.
Collapse
Affiliation(s)
- Ethan A. Perets
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520
| | - Pablo E. Videla
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, CT 06516
| | - Elsa C. Y. Yan
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520
| | - Victor S. Batista
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520
- Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, CT 06516
| |
Collapse
|
12
|
Vital WD, Torquato HFV, Jesus LDOP, Judice WADS, Silva MFDGFD, Rodrigues T, Justo GZ, Veiga TAM, Paredes-Gamero EJ. 4-Deoxyraputindole C induces cell death and cell cycle arrest in tumor cell lines. J Cell Biochem 2018; 120:9608-9623. [PMID: 30525230 DOI: 10.1002/jcb.28238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 11/15/2018] [Indexed: 11/12/2022]
Abstract
Several molecules extracted from natural products exhibit different biological activities, such as ion channel modulation, activation of signaling pathways, and anti-inflammatory or antitumor activity. In this study, we tested the antitumor ability of natural compounds extracted from the Raputia praetermissa plant. Among the compounds tested, an alkaloid, here called compound S4 (4-Deoxyraputindole C), showed antitumor effects against human tumor lineages. Compound S4 was the most active against Raji, a lymphoma lineage, promoting cell death with characteristics that including membrane permeabilization, dissipation of the mitochondrial potential, increased superoxide production, and lysosomal membrane permeabilization. The use of cell death inhibitors such as Z-VAD-FMK (caspase inhibitor), necrostatin-1 (receptor-interacting serine/threonine-protein kinase 1 inhibitor), E-64 (cysteine peptidases inhibitor), and N-acetyl- L-cysteine (antioxidant) did not decrease compound S4-dependent cell death. Additionally, we tested the effect of cellular activity on adherent human tumor cells. The highest reduction of cellular activity was observed in A549 cells, a lung carcinoma lineage. In this lineage, the effect on the reduction of the cellular activity was due to cell cycle arrest, without plasma membrane permeabilization, loss of the mitochondrial potential or lysosomal membrane permeabilization. Compound S4 was able to inhibit cathepsin B and L by a nonlinear competitive (negative co-operativity) and simple-linear competitive inhibitions, respectively. The potency of inhibition was higher against cathepsin L. Compound S4 promoted cell cycle arrest at G 0 and G 2 phase, and increase the expression of p16 and p21 proteins. In conclusion, compound S4 is an interesting molecule against cancer, promoting cell death in the human lymphoma lineage Raji and cell cycle arrest in the human lung carcinoma lineage A549.
Collapse
Affiliation(s)
- Wagner D Vital
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Mogi das Cruzes, Brasil
| | - Heron F V Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, Universidade Braz Cubas, São Paulo, Brazil
| | | | | | | | - Tiago Rodrigues
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | - Thiago A M Veiga
- Departamento de Química, Universidade Federal de São Paulo, Diadema, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, Universidade Braz Cubas, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Mato Grosso do Sul, Brazil
| |
Collapse
|
13
|
Jian C, Zhang P, Ma J, Jian S, Zhang Q, Liu B, Liang S, Liu M, Zeng Y, Liu Z. The Roles of Fatty-Acid Modification in the Activity of the Anticancer Peptide R-Lycosin-I. Mol Pharm 2018; 15:4612-4620. [DOI: 10.1021/acs.molpharmaceut.8b00605] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
14
|
The Biological and Biophysical Properties of the Spider Peptide Gomesin. Molecules 2018; 23:molecules23071733. [PMID: 30012962 PMCID: PMC6099743 DOI: 10.3390/molecules23071733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 01/31/2023] Open
Abstract
This review summarises the current knowledge of Gomesin (Gm), an 18-residue long, cationic anti-microbial peptide originally isolated from the haemocytes of the Brazilian tarantula Acanthoscurria gomesiana. The peptide shows potent cytotoxic activity against clinically relevant microbes including Gram-positive and Gram-negative bacteria, fungi, and parasites. In addition, Gm shows in-vitro and in-vivo anti-cancer activities against several human and murine cancers. The peptide exerts its cytotoxic activity by permeabilising cell membranes, but the underlying molecular mechanism of action is still unclear. Due to its potential as a therapeutic agent, the structure and membrane-binding properties, as well as the leakage and cytotoxic activities of Gm have been studied using a range of techniques. This review provides a summary of these studies, with a particular focus on biophysical characterisation studies of peptide variants that have attempted to establish a structure-activity relationship. Future studies are still needed to rationalise the binding affinity and cell-type-specific selectivity of Gm and its variants, while more pre-clinical studies are required to develop Gm into a therapeutically useful peptide.
Collapse
|
15
|
Buri MV, Torquato HFV, Barros CC, Ide JS, Miranda A, Paredes-Gamero EJ. Comparison of Cytotoxic Activity in Leukemic Lineages Reveals Important Features of β-Hairpin Antimicrobial Peptides. J Cell Biochem 2017; 118:1764-1773. [PMID: 27987312 DOI: 10.1002/jcb.25844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 12/14/2016] [Indexed: 02/06/2023]
Abstract
Several reports described different modes of cell death triggered by antimicrobial peptides (AMPs) due to direct effects on membrane disruption, and more recently by apoptosis and necrosis-like patterns. Cytotoxic curves of four β-hairpin AMPs (gomesin, protegrin, tachyplesin, and polyphemusin) were obtained from several human leukemic lineages and normal monocytes and Two cell lines were then selected based on their cytotoxic sensitivity. One was sensitive to AMPs (K562) and the other resistant (KG-1) and their effect compared between these lineages. Thus, these lineages were chosen to further investigate biological features related with their cytotoxicities to AMPs. Stimulation with AMPs produced cell death, with activation of caspase-3, in K562 lineage. Increase on the fluidity of plasmatic membrane by reducing cholesterol potentiated cytotoxicity of AMPs in both lineages. Quantification of internal and external gomesin binding to the cellular membrane of both K562 and KG-1 cells showed that more peptide is accumulated inside of K562 cells. Additionally, evaluation of multi-drug resistant pumps activity showed that KG-1 has more activity than K562 lineage. A comparison of intrinsic gene patterns showed great differences between K562 and KG-1, but stimulation with gomesin promoted few changes in gene expression patterns. Differences in internalization process through the plasma membrane, multidrug resistance pumps activity, and gene expression pattern are important features to AMPs regulated cell death. J. Cell. Biochem. 118: 1764-1773, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Heron F Vieira Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Carlos Castilho Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, n°1, 96010-610, Pelotas, RS, Brazil
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven 06519, Connecticut
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil.,Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200. Mogi das Cruzes, SP, Brazil
| |
Collapse
|
16
|
Buri MV, Dias CC, Barbosa CMV, Nogueira-Pedro A, Ribeiro-Filho AC, Miranda A, Paredes-Gamero EJ. Gomesin acts in the immune system and promotes myeloid differentiation and monocyte/macrophage activation in mouse. Peptides 2016; 85:41-45. [PMID: 27614284 DOI: 10.1016/j.peptides.2016.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/03/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022]
Abstract
Due to the cytotoxic effect of antimicrobial peptides (AMP) against several microorganism and tumor cells has been proposed their association with the immune system. However, just a few reports have shown this relationship. In this study, mice were treated with gomesin, a β-hairpin AMP that exhibit high cytotoxicity against bacterial and tumor cells. Different effects in the immune system were observed, such as, decrease of CD3+ in T lymphocytes (Control: 17.7±1.4%; Gomesin: 7.67±1.2%) and in hematopoietic progenitors and increase of hematopoietic stem cell (Control: 0.046±0.004%; Gomesin: 0.067±0.003%), B220+ B lymphocytes (Control: 38.63±1.5%; Gomesin: 47.83±0.48%), and Mac-1+F4/80+ macrophages (Control: 11.76±3.4%; Gomesin: 27.13±4.0%). Additionally, macrophage increase was accompanied by an increase of macrophage phagocytosis (Control 20.85±1.53; Gomesin 31.32±1 Geometric mean), interleukin 6 (Control: 47.24±1.9ng/mL; Gomesin: 138.68±33.68ng/mL) and monocyte chemoattractant protein-1 (Control: 0.872±0.093ng/mL; Gomesin: 1.83±0.067ng/mL). Thus, this report showed immunomodulatory activity of gomesin in the immune system of mice.
Collapse
Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Carol C Dias
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Amanda Nogueira-Pedro
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Antonio C Ribeiro-Filho
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil.
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil; Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil.
| |
Collapse
|
17
|
Roles of d-Amino Acids on the Bioactivity of Host Defense Peptides. Int J Mol Sci 2016; 17:ijms17071023. [PMID: 27376281 PMCID: PMC4964399 DOI: 10.3390/ijms17071023] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 12/15/2022] Open
Abstract
Host defense peptides (HDPs) are positively-charged and amphipathic components of the innate immune system that have demonstrated great potential to become the next generation of broad spectrum therapeutic agents effective against a vast array of pathogens and tumor. As such, many approaches have been taken to improve the therapeutic efficacy of HDPs. Amongst these methods, the incorporation of d-amino acids (d-AA) is an approach that has demonstrated consistent success in improving HDPs. Although, virtually all HDP review articles briefly mentioned about the role of d-AA, however it is rather surprising that no systematic review specifically dedicated to this topic exists. Given the impact that d-AA incorporation has on HDPs, this review aims to fill that void with a systematic discussion of the impact of d-AA on HDPs.
Collapse
|
18
|
Domingues TM, Perez KR, Miranda A, Riske KA. Comparative study of the mechanism of action of the antimicrobial peptide gomesin and its linear analogue: The role of the β-hairpin structure. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2414-21. [PMID: 26231588 DOI: 10.1016/j.bbamem.2015.07.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/08/2015] [Accepted: 07/21/2015] [Indexed: 12/31/2022]
Abstract
Gomesin (Gm) is an antimicrobial peptide first isolated from the hemolymph of a Brazilian spider. Its powerful antimicrobial activity is, however, accompanied by hemolysis. As an alternative to this issue, a linear analogue (named GmL) lacking the disulfide bonds was designed. Here, CD spectroscopy, a fluorescence-based leakage assay, isothermal titration calorimetry (ITC) and light scattering are used to study the interaction of both Gm and GmL with large unilamellar vesicles (LUVs) composed of POPC (palmitoyl oleoyl phosphatidylcholine) with 25 and 50 mol% POPG (palmitoyl oleoyl phosphatidylglycerol). The activities of Gm and GmL in respect to their binding affinity/enthalpy, ability to permeabilize membranes and to induce vesicle aggregation are correlated with peptide secondary structure. Whereas Gm displays a quite stable β-hairpin motif irrespective of the environment, GmL assumes a random conformation in aqueous solution and in the presence of 25 mol% POPG but adopts a β-like structure in the presence of 50 mol% POPG. Gm exhibited high lytic activity against both surface charge densities. Instead, the activity of GmL was found to be negligible in the presence of 25 mol% POPG LUVs, but comparable to that of the native peptide against 50 mol% POPG as a consequence of peptide structuring. We conclude that the activity of Gm and its linear analogue is intimately related to the formation of a β-turn motif, in which the hydrophobic residues form a hydrophobic face able to insert into the membrane and disrupt it.
Collapse
Affiliation(s)
- Tatiana M Domingues
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Katia R Perez
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil.
| |
Collapse
|
19
|
Chu HL, Yip BS, Chen KH, Yu HY, Chih YH, Cheng HT, Chou YT, Cheng JW. Novel antimicrobial peptides with high anticancer activity and selectivity. PLoS One 2015; 10:e0126390. [PMID: 25970292 PMCID: PMC4430538 DOI: 10.1371/journal.pone.0126390] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 04/01/2015] [Indexed: 01/08/2023] Open
Abstract
We describe a strategy to boost anticancer activity and reduce normal cell toxicity of short antimicrobial peptides by adding positive charge amino acids and non-nature bulky amino acid β-naphthylalanine residues to their termini. Among the designed peptides, K4R2-Nal2-S1 displayed better salt resistance and less toxicity to hRBCs and human fibroblast than Nal2-S1 and K6-Nal2-S1. Fluorescence microscopic studies indicated that the FITC-labeled K4R2-Nal2-S1 preferentially binds cancer cells and causes apoptotic cell death. Moreover, a significant inhibition in human lung tumor growth was observed in the xenograft mice treated with K4R2-Nal2-S1. Our strategy provides new opportunities in the development of highly effective and selective antimicrobial and anticancer peptide-based therapeutics.
Collapse
Affiliation(s)
- Hung-Lun Chu
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Bak-Sau Yip
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
- Department of Neurology, National Taiwan University Hospital Hsinchu Branch, Hsinchu, 300, Taiwan
| | - Kuan-Hao Chen
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Hui-Yuan Yu
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Ya-Han Chih
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Hsi-Tsung Cheng
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yu-Ting Chou
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
- * E-mail: (JWC); (YTC)
| | - Jya-Wei Cheng
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, 300, Taiwan
- * E-mail: (JWC); (YTC)
| |
Collapse
|