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Purohit K, Reddy N, Sunna A. Exploring the Potential of Bioactive Peptides: From Natural Sources to Therapeutics. Int J Mol Sci 2024; 25:1391. [PMID: 38338676 PMCID: PMC10855437 DOI: 10.3390/ijms25031391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
Bioactive peptides, specific protein fragments with positive health effects, are gaining traction in drug development for advantages like enhanced penetration, low toxicity, and rapid clearance. This comprehensive review navigates the intricate landscape of peptide science, covering discovery to functional characterization. Beginning with a peptidomic exploration of natural sources, the review emphasizes the search for novel peptides. Extraction approaches, including enzymatic hydrolysis, microbial fermentation, and specialized methods for disulfide-linked peptides, are extensively covered. Mass spectrometric analysis techniques for data acquisition and identification, such as liquid chromatography, capillary electrophoresis, untargeted peptide analysis, and bioinformatics, are thoroughly outlined. The exploration of peptide bioactivity incorporates various methodologies, from in vitro assays to in silico techniques, including advanced approaches like phage display and cell-based assays. The review also discusses the structure-activity relationship in the context of antimicrobial peptides (AMPs), ACE-inhibitory peptides (ACEs), and antioxidative peptides (AOPs). Concluding with key findings and future research directions, this interdisciplinary review serves as a comprehensive reference, offering a holistic understanding of peptides and their potential therapeutic applications.
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Affiliation(s)
- Kruttika Purohit
- School of Natural Sciences, Macquarie University, Sydney, NSW 2109, Australia;
- Australian Research Council Industrial Transformation Training Centre for Facilitated Advancement of Australia’s Bioactives (FAAB), Sydney, NSW 2109, Australia;
| | - Narsimha Reddy
- Australian Research Council Industrial Transformation Training Centre for Facilitated Advancement of Australia’s Bioactives (FAAB), Sydney, NSW 2109, Australia;
- School of Science, Parramatta Campus, Western Sydney University, Penrith, NSW 2751, Australia
| | - Anwar Sunna
- School of Natural Sciences, Macquarie University, Sydney, NSW 2109, Australia;
- Australian Research Council Industrial Transformation Training Centre for Facilitated Advancement of Australia’s Bioactives (FAAB), Sydney, NSW 2109, Australia;
- Biomolecular Discovery Research Centre, Macquarie University, Sydney, NSW 2109, Australia
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2
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Zhu Y, Wang K, Jia X, Fu C, Yu H, Wang Y. Antioxidant peptides, the guardian of life from oxidative stress. Med Res Rev 2024; 44:275-364. [PMID: 37621230 DOI: 10.1002/med.21986] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 08/26/2023]
Abstract
Reactive oxygen species (ROS) are produced during oxidative metabolism in aerobic organisms. Under normal conditions, ROS production and elimination are in a relatively balanced state. However, under internal or external environmental stress, such as high glucose levels or UV radiation, ROS production can increase significantly, leading to oxidative stress. Excess ROS production not only damages biomolecules but is also closely associated with the pathogenesis of many diseases, such as skin photoaging, diabetes, and cancer. Antioxidant peptides (AOPs) are naturally occurring or artificially designed peptides that can reduce the levels of ROS and other pro-oxidants, thus showing great potential in the treatment of oxidative stress-related diseases. In this review, we discussed ROS production and its role in inducing oxidative stress-related diseases in humans. Additionally, we discussed the sources, mechanism of action, and evaluation methods of AOPs and provided directions for future studies on AOPs.
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Affiliation(s)
- Yiyun Zhu
- Department of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Kang Wang
- Department of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Xinyi Jia
- National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu, China
- Department of Food Science and Technology, Food Science and Technology Center, National University of Singapore, Singapore, Singapore
| | - Caili Fu
- National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu, China
| | - Haining Yu
- Department of Bioscience and Biotechnology, Dalian University of Technology, Dalian, Liaoning, China
| | - Yipeng Wang
- Department of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
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3
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Mazurkiewicz-Pisarek A, Baran J, Ciach T. Antimicrobial Peptides: Challenging Journey to the Pharmaceutical, Biomedical, and Cosmeceutical Use. Int J Mol Sci 2023; 24:ijms24109031. [PMID: 37240379 DOI: 10.3390/ijms24109031] [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: 04/06/2023] [Revised: 05/14/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Antimicrobial peptides (AMPs), or host defence peptides, are short proteins in various life forms. Here we discuss AMPs, which may become a promising substitute or adjuvant in pharmaceutical, biomedical, and cosmeceutical uses. Their pharmacological potential has been investigated intensively, especially as antibacterial and antifungal drugs and as promising antiviral and anticancer agents. AMPs exhibit many properties, and some of these have attracted the attention of the cosmetic industry. AMPs are being developed as novel antibiotics to combat multidrug-resistant pathogens and as potential treatments for various diseases, including cancer, inflammatory disorders, and viral infections. In biomedicine, AMPs are being developed as wound-healing agents because they promote cell growth and tissue repair. The immunomodulatory effects of AMPs could be helpful in the treatment of autoimmune diseases. In the cosmeceutical industry, AMPs are being investigated as potential ingredients in skincare products due to their antioxidant properties (anti-ageing effects) and antibacterial activity, which allows the killing of bacteria that contribute to acne and other skin conditions. The promising benefits of AMPs make them a thrilling area of research, and studies are underway to overcome obstacles and fully harness their therapeutic potential. This review presents the structure, mechanisms of action, possible applications, production methods, and market for AMPs.
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Affiliation(s)
- Anna Mazurkiewicz-Pisarek
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Joanna Baran
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Tomasz Ciach
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
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4
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Peptides Isolated from Amphibian Skin Secretions with Emphasis on Antimicrobial Peptides. Toxins (Basel) 2022; 14:toxins14100722. [PMID: 36287990 PMCID: PMC9607450 DOI: 10.3390/toxins14100722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/07/2022] [Accepted: 10/19/2022] [Indexed: 11/19/2022] Open
Abstract
The skin of amphibians is a tissue with biological functions, such as defense, respiration, and excretion. In recent years, researchers have discovered a large number of peptides in the skin secretions of amphibians, including antimicrobial peptides, antioxidant peptides, bradykinins, insulin-releasing peptides, and other peptides. This review focuses on the origin, primary structure, secondary structure, length, and functions of peptides secreted from amphibians' skin. We hope that this review will provide further information and promote the further study of amphibian skin secretions, in order to provide reference for expanding the research and application of amphibian bioactive peptides.
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5
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Multiple Mechanistic Action of Brevinin-1FL Peptide against Oxidative Stress Effects in an Acute Inflammatory Model of Carrageenan-Induced Damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2615178. [PMID: 36105482 PMCID: PMC9467757 DOI: 10.1155/2022/2615178] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/29/2022] [Accepted: 08/06/2022] [Indexed: 11/27/2022]
Abstract
Amphibian skin is acknowledged to contain an antioxidant system composed of various gene-encoded antioxidant peptides, which exert significant effects on host defense. Nevertheless, recognition of such peptides is in its infancy so far. Here, we reported the antioxidant properties and underlying mechanism of a new antioxidant peptide, brevinin-1FL, identified from Fejervarya limnocharis frog skin. The cDNA sequence encoding brevinin-1FL was successfully cloned from the total cDNA of F. limnocharis and showed to contain 222 bp. The deduced mature peptide sequence of brevinin-1FL was FWERCSRWLLN. Functional analysis revealed that brevinin-1FL could concentration-dependently scavenge ABTS+, DPPH, NO, and hydroxyl radicals and alleviate iron oxidation. Besides, brevinin-1FL was found to show neuroprotective activity by reducing contents of MDA and ROS plus mitochondrial membrane potential, increasing endogenous antioxidant enzyme activity, and suppressing H2O2-induced death, apoptosis, and cycle arrest in PC12 cells which were associated with its regulation of AKT/MAPK/NF-κB signal pathways. Moreover, brevinin-1FL relieved paw edema, decreased the levels of TNF-α, IL-1β, IL-6, MPO, and malondialdehyde (MDA), and restored catalase (CAT) and superoxide dismutase (SOD) activity plus glutathione (GSH) contents in the mouse injected by carrageenan. Together, these findings indicate that brevinin-1FL as an antioxidant has potent therapeutic potential for the diseases induced by oxidative damage. Meanwhile, this study will help us further comprehend the biological functions of amphibian skin and the mechanism by which antioxidants protect cells from oxidative stress.
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6
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Picturins and Pictuseptins, two novel antimicrobial peptide families from the skin secretions of the Chachi treefrog, Boana picturata. J Proteomics 2022; 264:104633. [DOI: 10.1016/j.jprot.2022.104633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/24/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022]
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7
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Plácido A, do Pais do Amaral C, Teixeira C, Nogueira A, Brango-Vanegas J, Alves Barbosa E, C Moreira D, Silva-Carvalho AÉ, da Silva MDG, do Nascimento Dias J, Albuquerque P, Saldanha-Araújo F, C D A Lima F, Batagin-Neto A, Kuckelhaus S, Bessa LJ, Freitas J, Dotto Brand G, C Santos N, B Relvas J, Gomes P, S A Leite JR, Eaton P. Neuroprotective effects on microglia and insights into the structure-activity relationship of an antioxidant peptide isolated from Pelophylax perezi. J Cell Mol Med 2022; 26:2793-2807. [PMID: 35460166 PMCID: PMC9097852 DOI: 10.1111/jcmm.17292] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 02/07/2022] [Accepted: 02/22/2022] [Indexed: 11/29/2022] Open
Abstract
Tryptophyllins constitute a heterogeneous group of peptides that are one of the first classes of peptides identified from amphibian’s skin secretions. Here, we report the structural characterization and antioxidant properties of a novel tryptophyllin‐like peptide, named PpT‐2, isolated from the Iberian green frog Pelophylax perezi. The skin secretion of P. perezi was obtained by electrical stimulation and fractionated using RP‐HPLC. De novo peptide sequencing was conducted using MALDI MS/MS. The primary structure of PpT‐2 (FPWLLS‐NH2) was confirmed by Edman degradation and subsequently investigated using in silico tools. PpT‐2 shared physicochemical properties with other well‐known antioxidants. To test PpT‐2 for antioxidant activity in vitro, the peptide was synthesized by solid phase and assessed in the chemical‐based ABTS and DPPH scavenging assays. Then, a flow cytometry experiment was conducted to assess PpT‐2 antioxidant activity in oxidatively challenged murine microglial cells. As predicted by the in silico analyses, PpT‐2 scavenged free radicals in vitro and suppressed the generation of reactive species in PMA‐stimulated BV‐2 microglia cells. We further explored possible bioactivities of PpT‐2 against prostate cancer cells and bacteria, against which the peptide exerted a moderate antiproliferative effect and negligible antimicrobial activity. The biocompatibility of PpT‐2 was evaluated in cytotoxicity assays and in vivo toxicity with Galleria mellonella. No toxicity was detected in cells treated with up to 512 µg/ml and in G. mellonella treated with up to 40 mg/kg PpT‐2. This novel peptide, PpT‐2, stands as a promising peptide with potential therapeutic and biotechnological applications, mainly for the treatment/prevention of neurodegenerative disorders.
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Affiliation(s)
- Alexandra Plácido
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal
| | | | - Cátia Teixeira
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Ariane Nogueira
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - José Brango-Vanegas
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - Eder Alves Barbosa
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil.,Laboratory of Synthesis and Analysis of Biomolecules (LSAB), Institute of Chemistry (IQ), University of Brasilia, Brasília, Brazil
| | - Daniel C Moreira
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - Amandda É Silva-Carvalho
- Laboratory of Hematology and Stem Cells, Faculty of Health Sciences, University of Brasilia, Brasília, Brazil
| | - Maria da Gloria da Silva
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - Jhones do Nascimento Dias
- Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, Brazil.,Biomedicine Course, Federal University of Delta do Parnaíba (UFDPar), Parnaíba, Brazil
| | - Patrícia Albuquerque
- Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, Brazil.,Faculty of Ceilândia, University of Brasilia, Brasilia, Brazil
| | - Felipe Saldanha-Araújo
- Laboratory of Hematology and Stem Cells, Faculty of Health Sciences, University of Brasilia, Brasília, Brazil
| | - Filipe C D A Lima
- Federal Institute of Education, Science and Technology of São Paulo, Matão, Brazil
| | | | - Selma Kuckelhaus
- Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - Lucinda J Bessa
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal.,Egas Moniz Interdisciplinary Research Center (CiiEM), Egas Moniz - Cooperative for Higher Education, CRL, Almada, Portugal
| | - Jaime Freitas
- Institute for Research and Innovation in Health (i3S), National Institute of Biomedical Engineering (INEB), University of Porto, Porto, Portugal
| | - Guilherme Dotto Brand
- Laboratory of Synthesis and Analysis of Biomolecules (LSAB), Institute of Chemistry (IQ), University of Brasilia, Brasília, Brazil
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - João B Relvas
- Institute for Research and Innovation in Health (i3S), Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Paula Gomes
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal
| | - José Roberto S A Leite
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal.,Center for Research in Applied Morphology and Immunology (NuPMIA), University of Brasilia, Brasilia, Brazil
| | - Peter Eaton
- Department of Chemistry and Biochemistry, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Porto, Portugal.,The Bridge, School of Chemistry, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
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Luong HX, Ngan HD, Thi Phuong HB, Quoc TN, Tung TT. Multiple roles of ribosomal antimicrobial peptides in tackling global antimicrobial resistance. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211583. [PMID: 35116161 PMCID: PMC8790363 DOI: 10.1098/rsos.211583] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/20/2021] [Indexed: 05/03/2023]
Abstract
In the last century, conventional antibiotics have played a significant role in global healthcare. Antibiotics support the body in controlling bacterial infection and simultaneously increase the tendency of drug resistance. Consequently, there is a severe concern regarding the regression of the antibiotic era. Despite the use of antibiotics, host defence systems are vital in fighting infectious diseases. In fact, the expression of ribosomal antimicrobial peptides (AMPs) has been crucial in the evolution of innate host defences and has been irreplaceable to date. Therefore, this valuable source is considered to have great potential in tackling the antimicrobial resistance (AMR) crisis. Furthermore, the possibility of bacterial resistance to AMPs has been intensively investigated. Here, we summarize all aspects related to the multiple applications of ribosomal AMPs and their derivatives in combating AMR.
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Affiliation(s)
- Huy Xuan Luong
- Faculty of Pharmacy, PHENIKAA University, Hanoi 12116, Vietnam
- PHENIKAA Institute for Advanced Study (PIAS), PHENIKAA University, Hanoi 12116, Vietnam
| | | | | | - Thang Nguyen Quoc
- Nuclear Medicine Unit, Vinmec Healthcare System, Hanoi 10000, Vietnam
| | - Truong Thanh Tung
- Faculty of Pharmacy, PHENIKAA University, Hanoi 12116, Vietnam
- PHENIKAA Institute for Advanced Study (PIAS), PHENIKAA University, Hanoi 12116, Vietnam
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Feng G, Wu J, Yang HL, Mu L. Discovery of Antioxidant Peptides from Amphibians: A Review. Protein Pept Lett 2021; 28:1220-1229. [PMID: 34493183 DOI: 10.2174/0929866528666210907145634] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/08/2021] [Accepted: 07/08/2021] [Indexed: 01/19/2023]
Abstract
In recent years, bioactive peptide drugs have attracted growing attention due to the increasing difficulty in developing new drugs with novel chemical structures. In addition, many diseases are linked to excessive oxidation in the human body. Therefore, the role of peptides with antioxidant activity in counteracting diseases related to oxidative stress is worth exploring. Amphibians are a major repository for bioactive peptides that protect the skin from biotic and abiotic stresses, such as microbial infection and radiation injury. We characterized the first amphibian- derived gene-encoded antioxidant peptides in 2008. Since then, a variety of antioxidant peptides have been detected in different amphibian species. In this work, the physicochemical properties of antioxidant peptides identified from amphibians are reviewed for the first time, particularly acquisition methods, amino acid characteristics, antioxidant mechanisms, and application prospects. This review should provide a reference for advancing the identification, structural analysis, and potential therapeutic value of natural antioxidant peptides.
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Affiliation(s)
- Guizhu Feng
- School of Basic Medical Sciences, Kunming Medical University, Kunming Yunnan 650500,China
| | - Jing Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming Yunnan 650500,China
| | - Hai-Long Yang
- School of Basic Medical Sciences, Kunming Medical University, Kunming Yunnan 650500,China
| | - Lixian Mu
- School of Basic Medical Sciences, Kunming Medical University, Kunming Yunnan 650500,China
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10
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Ong D, Ismail MN, Shahrudin S. Protein Composition and Biomedical Potential of the Skin Secretion of Hylarana erythraea (Schlegel, 1837) (Anura: Ranidae) from Langkawi Archipelago, Kedah, Peninsular Malaysia. Int J Pept Res Ther 2021; 27:2125-2133. [PMID: 34177403 PMCID: PMC8215483 DOI: 10.1007/s10989-021-10240-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/13/2021] [Indexed: 02/06/2023]
Abstract
The skin secretion of amphibians is known for its high content of bioactive compounds. These bioactive compounds are essential for the advancement of biomedical industries. Four wild green paddy frogs, Hylarana erythraea, were collected from various habitat types within the Langkawi Archipelago. These frogs' skin secretions were collected, extracted, and analysed for their protein compounds together with biomedical potentials using liquid chromatography-mass spectrometry (LC-MS). The total protein concentration of H. erythraea skin secretions was determined as 0.269 mg/mL. Based on the UniProt (Anura) database, we identified 29 proteins. These proteins were categorised as antimicrobial (AMP) (38%), followed by hormone (17%), enzyme (17%), unreviewed proteins (17%), structural proteins (7%), and regulatory proteins (4%). The AMPs identified were from the family of esculentin-1, esculentin-2, brevinin-1, and frenatin-4, while the hormones belonged to the cholecystokinin group. The enzymes detected were adenylate cyclase 9, the suppressor of tumorigenicity 14 protein homolog, and the HGF activator. The structural proteins belonged to toe pad keratin 2 and Krt5.7 proteins, while the single regulatory protein is CCR4-NOT transcription complex subunit 6-like. These proteins have a wide range of biomedical importance, such as wound healings, facilitate digestions, anti-tumours, and anti-cancer effect.
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Affiliation(s)
- Dasi Ong
- School of Pharmaceutical Sciences, Universiti Sains Malaysia (USM), 11800 Gelugor, Penang Malaysia ,Analytical Biochemistry Research Centre, Universiti Sains Malaysia (USM), 11800 Gelugor, Penang Malaysia
| | - Mohd Nazri Ismail
- Analytical Biochemistry Research Centre, Universiti Sains Malaysia (USM), 11800 Gelugor, Penang Malaysia
| | - Shahriza Shahrudin
- School of Pharmaceutical Sciences, Universiti Sains Malaysia (USM), 11800 Gelugor, Penang Malaysia
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11
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Antimicrobial peptides - Advances in development of therapeutic applications. Life Sci 2020; 260:118407. [PMID: 32931796 PMCID: PMC7486823 DOI: 10.1016/j.lfs.2020.118407] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023]
Abstract
The severe infection is becoming a significant health problem which threaten the lives of patients and the safety and economy of society. In the way of finding new strategy, antimicrobial peptides (AMPs) - an important part of host defense family, emerged with tremendous potential. Up to date, huge numbers of AMPs has been investigated from both natural and synthetic sources showing not only the ability to kill microbial pathogens but also propose other benefits such as wound healing, anti-tumor, immune modulation. In this review, we describe the involvements of AMPs in biological systems and discuss the opportunity in developing AMPs for clinical applications. In the detail, their properties in antibacterial activity is followed by their application in some infection diseases and cancer. The key discussions are the approaches to improve biological activities of AMPs either by modifying chemical structure or incorporating into delivery systems. The new applications and perspectives for the future of AMPs would open the new era of their development.
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12
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Functional Characterization of Temporin-SHe, a New Broad-Spectrum Antibacterial and Leishmanicidal Temporin-SH Paralog from the Sahara Frog ( Pelophylax saharicus). Int J Mol Sci 2020; 21:ijms21186713. [PMID: 32933215 PMCID: PMC7555312 DOI: 10.3390/ijms21186713] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Amphibian skin is a promising natural resource for antimicrobial peptides (AMPs), key effectors of innate immunity with attractive therapeutic potential to fight antibiotic-resistant pathogens. Our previous studies showed that the skin of the Sahara Frog (Pelophylax saharicus) contains broad-spectrum AMPs of the temporin family, named temporins-SH. Here, we focused our study on temporin-SHe, a temporin-SHd paralog that we have previously identified in this frog but was never structurally and functionally characterized. We synthesized and determined the structure of temporin-SHe. This non-amphipathic α-helical peptide was demonstrated to strongly destabilize the lipid chain packing of anionic multilamellar vesicles mimicking bacterial membranes. Investigation of the antimicrobial activity revealed that temporin-SHe targets Gram-negative and Gram-positive bacteria, including clinical isolates of multi-resistant Staphylococcus aureus strains. Temporin-SHe exhibited also antiparasitic activity toward different Leishmania species responsible for visceral leishmaniasis, as well as cutaneous and mucocutaneous forms. Functional assays revealed that temporin-SHe exerts bactericidal effects with membrane depolarization and permeabilization, via a membranolytic mechanism observed by scanning electron microscopy. Temporin-SHe represents a new member of the very limited group of antiparasitic temporins/AMPs. Despite its cytotoxicity, it is nevertheless an interesting tool to study the AMP antiparasitic mechanism and design new antibacterial/antiparasitic agents.
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Ogawa D, Suzuki M, Inamura Y, Saito K, Hasunuma I, Kobayashi T, Kikuyama S, Iwamuro S. Antimicrobial Property and Mode of Action of the Skin Peptides of the Sado Wrinkled Frog, Glandirana susurra, against Animal and Plant Pathogens. Antibiotics (Basel) 2020; 9:antibiotics9080457. [PMID: 32751229 PMCID: PMC7460468 DOI: 10.3390/antibiotics9080457] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 11/16/2022] Open
Abstract
The Sado wrinkled frog Glandirana susurra has recently been classified as a new frog species endemic to Sado Island, Japan. In this study, we cloned 12 cDNAs encoding the biosynthetic precursors for brevinin-2SSa–2SSd, esculentin-2SSa, ranatuerin-2SSa, brevinin-1SSa–1SSd, granuliberin-SSa, and bradykinin-SSa from the skin of G. susurra. Among these antimicrobial peptides, we focused on brevinin-2SSb, ranatuerin-2SSa, and granuliberin-SSa, using their synthetic replicates to examine their activities against different reference strains of pathogenic microorganisms that infect animals and plants. In broth microdilution assays, brevinin-2SSb displayed antimicrobial activities against animal pathogens Escherichia coli, Salmonella enterica, Pseudomonas aeruginosa, and Candida albicans and plant pathogens Xanthomonas oryzae pv. oryzae, Clavibacter michiganensis subsp. michiganensis, and Pyricularia oryzae. Ranatuerin-2SSa and granuliberin-SSa were active against C. albicans and C. michiganensis subsp. michiganensis, and granuliberin-SSa also was active against the other plant pathogenic microbes. Scanning electron microscopic observations demonstrated that brevinin-2SSb, ranatuerin-2SSa, and granuliberin-SSa induced morphological abnormalities on the cell surface in a wide range of the reference pathogens. To assess the bacterial-endotoxin-binding ability of the peptides, we developed an enzyme-linked endotoxin-binding assay system and demonstrated that brevinin-2SSb and ranatuerin-2SSa both exhibited high affinity to lipopolysaccharide and moderate affinity to lipoteichoic acid.
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Affiliation(s)
- Daisuke Ogawa
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
| | - Manami Suzuki
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
| | - Yuriko Inamura
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
| | - Kaito Saito
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
| | - Itaru Hasunuma
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
| | - Tetsuya Kobayashi
- Department of Regulatory Biology, Faculty of Sciences, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan;
| | - Sakae Kikuyama
- Department of Biology, Faculty of Education and Integrated Arts and Sciences, Center for Advanced Biomedical Sciences, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan;
| | - Shawichi Iwamuro
- Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan; (D.O.); (M.S.); (Y.I.); (K.S.); (I.H.)
- Correspondence: ; Tel.: +81-47-472-5206
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The Antioxidant Peptide Salamandrin-I: First Bioactive Peptide Identified from Skin Secretion of Salamandra Genus (Salamandra salamandra). Biomolecules 2020; 10:biom10040512. [PMID: 32230960 PMCID: PMC7226163 DOI: 10.3390/biom10040512] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/25/2022] Open
Abstract
Amphibian skin is a multifunctional organ that plays key roles in defense, breathing, and water balance. In this study, skin secretion samples of the fire salamander (Salamandra salamandra) were separated using RP-HPLC and de novo sequenced using MALDI-TOF MS/MS. Next, we used an in silico platform to screen antioxidant molecules in the framework of density functional theory. One of the identified peptides, salamandrin-I, [M + H]+ = 1406.6 Da, was selected for solid-phase synthesis; it showed free radical scavenging activity against DPPH and ABTS radicals. Salamandrin-I did not show antimicrobial activity against Gram-positive and -negative bacteria. In vitro assays using human microglia and red blood cells showed that salamandrin-I has no cytotoxicity up to the concentration of 100 µM. In addition, in vivo toxicity tests on Galleria mellonella larvae resulted in no mortality at 20 and 40 mg/kg. Antioxidant peptides derived from natural sources are increasingly attracting interest. Among several applications, these peptides, such as salamandrin-I, can be used as templates in the design of novel antioxidant molecules that may contribute to devising strategies for more effective control of neurological disease.
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15
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Sousa NA, Oliveira GAL, de Oliveira AP, Lopes ALF, Iles B, Nogueira KM, Araújo TSL, Souza LKM, Araújo AR, Ramos-Jesus J, Plácido A, Amaral C, Campelo YDM, Barbosa EA, Portugal CC, Socodato R, Lobo A, Relvas J, Bemquerer M, Eaton P, Leite JRSA, Medeiros JVR. Novel Ocellatin Peptides Mitigate LPS-induced ROS Formation and NF-kB Activation in Microglia and Hippocampal Neurons. Sci Rep 2020; 10:2696. [PMID: 32060388 PMCID: PMC7021831 DOI: 10.1038/s41598-020-59665-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 01/31/2020] [Indexed: 12/18/2022] Open
Abstract
Cutaneous secretions of amphibians have bioactive compounds, such as peptides, with potential for biotechnological applications. Therefore, this study aimed to determine the primary structure and investigate peptides obtained from the cutaneous secretions of the amphibian, Leptodactylus vastus, as a source of bioactive molecules. The peptides obtained possessed the amino acid sequences, GVVDILKGAAKDLAGH and GVVDILKGAAKDLAGHLASKV, with monoisotopic masses of [M + H]± = 1563.8 Da and [M + H]± = 2062.4 Da, respectively. The molecules were characterized as peptides of the class of ocellatins and were named as Ocellatin-K1(1-16) and Ocellatin-K1(1-21). Functional analysis revealed that Ocellatin-K1(1-16) and Ocellatin-K1(1-21) showed weak antibacterial activity. However, treatment of mice with these ocellatins reduced the nitrite and malondialdehyde content. Moreover, superoxide dismutase enzymatic activity and glutathione concentration were increased in the hippocampus of mice. In addition, Ocellatin-K1(1-16) and Ocellatin-K1(1-21) were effective in impairing lipopolysaccharide (LPS)-induced reactive oxygen species (ROS) formation and NF-kB activation in living microglia. We incubated hippocampal neurons with microglial conditioned media treated with LPS and LPS in the presence of Ocellatin-K1(1-16) and Ocellatin-K1(1-21) and observed that both peptides reduced the oxidative stress in hippocampal neurons. Furthermore, these ocellatins demonstrated low cytotoxicity towards erythrocytes. These functional properties suggest possible to neuromodulatory therapeutic applications.
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Affiliation(s)
- Nayara A Sousa
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - Guilherme A L Oliveira
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - Ana Patrícia de Oliveira
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - André Luís F Lopes
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - Bruno Iles
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - Kerolayne M Nogueira
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil
| | - Thiago S L Araújo
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil.,Instituto de Educação Superior do Vale do Parnaíba, FAHESP/IESVAP/NRE, Parnaíba, Brazil
| | - Luan K M Souza
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil.,Instituto de Educação Superior do Vale do Parnaíba, FAHESP/IESVAP/NRE, Parnaíba, Brazil
| | - Alyne R Araújo
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, UFPI, Piauí, Brazil
| | - Joilson Ramos-Jesus
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, UFPI, Piauí, Brazil.,Instituto de Educação Superior do Vale do Parnaíba, FAHESP/IESVAP/NRE, Parnaíba, Brazil
| | - Alexandra Plácido
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - Constança Amaral
- Instituto de Medicina Molecular, IMM, Universidade de Lisboa, Lisboa, Portugal
| | - Yuri D M Campelo
- Instituto de Educação Superior do Vale do Parnaíba, FAHESP/IESVAP/NRE, Parnaíba, Brazil
| | - Eder Alves Barbosa
- Laboratório de Síntese e Análise de Biomoléculas, LSAB, Instituto de Química, UnB, Brasília, Brazil
| | - Camila C Portugal
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal
| | - Renato Socodato
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal
| | - Andrea Lobo
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal
| | - Joao Relvas
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal
| | | | - Peter Eaton
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal.,Instituto de Medicina Molecular, IMM, Universidade de Lisboa, Lisboa, Portugal
| | - José Roberto S A Leite
- Núcleo de Pesquisa em Morfologia e Imunonologia Aplicada, NuPMIA, Área Morfologia, Faculdade de Medicina, UnB, Brasília, Brazil
| | - Jand Venes R Medeiros
- Laboratório de Farmacologia da Inflamação e Doenças Gastrintestinais, Universidade Federal do Delta do Parnaíba, UFDPar, Piauí, Brazil. .,Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, UFPI, Piauí, Brazil.
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16
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The interaction mechanism of oligopeptides containing aromatic rings with β-cyclodextrin and its derivatives. Food Chem 2019; 286:441-448. [DOI: 10.1016/j.foodchem.2019.02.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/31/2019] [Accepted: 02/05/2019] [Indexed: 01/31/2023]
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17
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Cao X, Tang J, Fu Z, Feng Z, Wang S, Yang M, Wu C, Wang Y, Yang X. Identification and Characterization of a Novel Gene-encoded Antioxidant Peptide from Odorous Frog Skin. Protein Pept Lett 2019; 26:160-169. [DOI: 10.2174/0929866525666181114153136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 10/31/2018] [Accepted: 10/31/2018] [Indexed: 11/22/2022]
Abstract
Background:
Amphibian skin plays an essential role in protecting organisms from harmful
external factors such as UV radiation. How amphibians protect themselves from reactive oxygen
species following long-term sun exposure is an important and interesting question. Amphibian
skins possess a novel antioxidant system composed of various Antioxidant Peptides (AOPs), which
maintain redox homeostasis. However, only a few AOPs have been identified so far.
Methods:
Using combinational methods of peptidomics and genomics, we characterized a novel
gene-encoded antioxidant peptide (herein named OA-VI12) from Odorrana andersonii skin secretions,
which was produced by the post-translational processing of a 59-residue prepropeptide. The
amino acid sequence of the OA-V112 was 'VIPFLACRPLGL', with a molecular mass of 1298.6 Da
and no observed post-transcriptional modifications. Functional analysis demonstrated that OA-VI12
was capable of scavenging ABTS+, DPPH, NO and decreasing the Fe3+ production.
Results:
We determined that the C7 amino acid was responsible for ABTS+ and Fe3+ scavenging,
activities, the F4, C7, and P9 amino acids were crucial for DPPH scavenging activity, and the P9
amino acid was responsible for NO scavenging activity. Unlike several other amphibian peptides,
OA-VI12 did not accelerate wound healing in a full-thickness skin-wound mouse model and did not
demonstrate direct microbial killing. Here, we identified and named a novel gene-encoded antioxidant
peptide from the skin secretions of an odorous frog species, which may assist in the development
of potential antioxidant candidates.
Conclusion:
This study may help improve our understanding of the molecular basis of amphibians’
adaptation to environments experiencing long-term UV radiation.
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Affiliation(s)
- Xiaoqing Cao
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Jing Tang
- Department of Biochemistry and Molecular Biology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Zhe Fu
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Zhuo Feng
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Siyuan Wang
- Key Laboratory of Chemistry in Ethnic Medicine Resource, State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Meifeng Yang
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Chunyun Wu
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Ying Wang
- Key Laboratory of Chemistry in Ethnic Medicine Resource, State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Xinwang Yang
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
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19
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Alencar-Silva T, Braga MC, Santana GOS, Saldanha-Araujo F, Pogue R, Dias SC, Franco OL, Carvalho JL. Breaking the frontiers of cosmetology with antimicrobial peptides. Biotechnol Adv 2018; 36:2019-2031. [PMID: 30118811 DOI: 10.1016/j.biotechadv.2018.08.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/26/2018] [Accepted: 08/12/2018] [Indexed: 01/06/2023]
Abstract
Antimicrobial peptides (AMPs) are mostly endogenous, cationic, amphipathic polypeptides, produced by many natural sources. Recently, many biological functions beyond antimicrobial activity have been attributed to AMPs, and some of these have attracted the attention of the cosmetics industry. AMPs have revealed antioxidant, self-renewal and pro-collagen effects, which are desirable in anti-aging cosmetics. Additionally, AMPs may also be customized to act on specific cellular targets. Here, we review the recent literature that highlights the many possibilities presented by AMPs, focusing on the relevance and impact that this potentially novel class of active cosmetic ingredients might have in the near future, creating new market outlooks for the cosmetic industry with these molecules as a viable alternative to conventional cosmetics.
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Affiliation(s)
- Thuany Alencar-Silva
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Mariana Carolina Braga
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Gustavo Oliveira Silva Santana
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Felipe Saldanha-Araujo
- Laboratório de Farmacologia Molecular, Departamento de Ciências da Saúde, Universidade de Brasília, Brasilia, DF, Brazil; Programa de Pós-graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil
| | - Robert Pogue
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Simoni Campos Dias
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Universidade de Brasília, Pós-Graduação em Biologia Animal, Campus Darcy Ribeiro, Brasília/DF, 70910-900, Brazil
| | - Octavio Luiz Franco
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Programa de Pós-graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília-DF, Brazil
| | - Juliana Lott Carvalho
- Programa de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil.
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20
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Identification and Functional Analysis of Novel Bradykinin-Related Peptides (BRPs) from Skin Secretions of Five Asian Frogs. Protein J 2018; 37:324-332. [PMID: 30008150 DOI: 10.1007/s10930-018-9783-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In recent decades, various types of bioactive substances have been identified from amphibian skin and its secretions. Bradykinin-related peptides (BRPs) are among these compounds that make up the host defence system of amphibians. In the present study, we identified six novel BRPs, amolopkinin-GN1, amolopkinin-RK1, amolopkinin-TR1, amolopkinin-LF1, ranakinin-MS1, and ranakinin-MS2, from five East Asian amphibians, Amolops granulosus, Amolops ricketti, Amolops torrentis, Amolops lifanensis, and Hylarana maosonensis. This is the first report on BRPs in the skin of these species. Physiological assays reveal that these peptides have a contractive effect on the smooth muscle of rat ileum.
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21
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Barbosa EA, Oliveira A, Plácido A, Socodato R, Portugal CC, Mafud AC, Ombredane AS, Moreira DC, Vale N, Bessa LJ, Joanitti GA, Alves C, Gomes P, Delerue-Matos C, Mascarenhas YP, Marani MM, Relvas JB, Pintado M, Leite JRSA. Structure and function of a novel antioxidant peptide from the skin of tropical frogs. Free Radic Biol Med 2018; 115:68-79. [PMID: 29162516 DOI: 10.1016/j.freeradbiomed.2017.11.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 10/30/2017] [Accepted: 11/01/2017] [Indexed: 11/28/2022]
Abstract
The amphibian skin plays an important role protecting the organism from external harmful factors such as microorganisms or UV radiation. Based on biorational strategies, many studies have investigated the cutaneous secretion of anurans as a source of bioactive molecules. By a peptidomic approach, a novel antioxidant peptide (AOP) with in vitro free radical scavenging ability was isolated from Physalaemus nattereri. The AOP, named antioxidin-I, has a molecular weight [M+H]+ = 1543.69Da and a TWYFITPYIPDK primary amino acid sequence. The gene encoding the antioxidin-I precursor was expressed in the skin tissue of three other Tropical frog species: Phyllomedusa tarsius, P. distincta and Pithecopus rohdei. cDNA sequencing revealed highly homologous regions (signal peptide and acidic region). Mature antioxidin-I has a novel primary sequence with low similarity compared with previously described amphibian's AOPs. Antioxidin-I adopts a random structure even at high concentrations of hydrophobic solvent, it has poor antimicrobial activity and poor performance in free radical scavenging assays in vitro, with the exception of the ORAC assay. However, antioxidin-I presented a low cytotoxicity and suppressed menadione-induced redox imbalance when tested with fibroblast in culture. In addition, it had the capacity to substantially attenuate the hypoxia-induced production of reactive oxygen species when tested in hypoxia exposed living microglial cells, suggesting a potential neuroprotective role for this peptide.
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Affiliation(s)
- Eder Alves Barbosa
- Laboratório de Espectrometria de Massa, EMBRAPA Recursos Genéticos e Biotecnologia, Brasília, Brazil; Laboratório de Síntese e Análise de Biomoléculas, Instituto de Química, Universidade de Brasília, Brasília, Brazil
| | - Ana Oliveira
- Centro de Biotecnologia e Química Fina, CBQF, Universidade Católica Portuguesa, Rua Arquiteto Lobão Vital Apartado, 2511, Asprela, Porto, Portugal
| | - Alexandra Plácido
- LAQV/REQUIMTE, GRAQ, Instituto Superior de Engenha do Porto, ISEP, Porto, Portugal
| | - Renato Socodato
- Glial Cell Biology Lab, Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Camila C Portugal
- Glial Cell Biology Lab, Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Ana Carolina Mafud
- Instituto de Física de São Carlos, IFSC, Universidade de São Paulo, USP, São Carlos, SP, Brazil; Dept Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel 4051, Switzerland
| | - Alicia S Ombredane
- Laboratório de Nanobiotecnologia, Instituto de Biologia, Campus Darcy Ribeiro, UnB, Brasília, DF, Brazil
| | - Daniel C Moreira
- Área de Morfologia, Faculdade de Medicina, Universidade de Brasília, UnB, Brasília, DF, Brazil
| | - Nuno Vale
- UCIBIO/REQUIMTE, Laboratório de Farmacologia, Departamento de Ciências do Medicamento, Faculdade de Farmácia da Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Lucinda J Bessa
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Graziella A Joanitti
- Laboratório de Nanobiotecnologia, Instituto de Biologia, Campus Darcy Ribeiro, UnB, Brasília, DF, Brazil; Campus Ceilândia, Centro Metropolitano, UnB, Ceilândia, Brasília, DF, Brazil
| | - Cláudia Alves
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Paula Gomes
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | | | | | - Mariela M Marani
- IPEEC-CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Puerto Madryn, Argentina
| | - João B Relvas
- Glial Cell Biology Lab, Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Manuela Pintado
- Centro de Biotecnologia e Química Fina, CBQF, Universidade Católica Portuguesa, Rua Arquiteto Lobão Vital Apartado, 2511, Asprela, Porto, Portugal
| | - José Roberto S A Leite
- Glial Cell Biology Lab, Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Área de Morfologia, Faculdade de Medicina, Universidade de Brasília, UnB, Brasília, DF, Brazil.
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22
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Yan M, Tian HF, Hu QM, Xiao HB. Molecular Cloning of Cathelicidin-like cDNA from Andrias davidianus. RUSS J GENET+ 2018. [DOI: 10.1134/s102279541801012x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Jafari M, Mehrnejad F, Doustdar F. Insight into the interactions, residue snorkeling, and membrane disordering potency of a single antimicrobial peptide into different lipid bilayers. PLoS One 2017; 12:e0187216. [PMID: 29125878 PMCID: PMC5695277 DOI: 10.1371/journal.pone.0187216] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/16/2017] [Indexed: 12/30/2022] Open
Abstract
Pardaxin, with a bend-helix-bend-helix structure, is a membrane-active antimicrobial peptide that its membrane activity depends on the lipid bilayer composition. Herein, all-atom molecular dynamics (MD) simulations were performed to provide further molecular insight into the interactions, structural dynamics, orientation behavior, and cationic residues snorkeling of pardaxin in the DMPC, DPPC, POPC, POPG, POPG/POPE (3:1), and POPG/POPE (1:3) lipid bilayers. The results showed that the C-terminal helix of the peptide was maintained in all six types of the model-bilayers and pardaxin was tilted into the DMPC, DPPC, and POPG/POPE mixed bilayers more than the POPC and POPG bilayers. As well as, the structure of zwitterionic membranes was more affected by the peptide than the anionic bilayers. Taken together, the study demonstrated that the cationic residues of pardaxin snorkeled toward the interface of lipid bilayers and all phenylalanine residues of the peptide played important roles in the peptide-membrane interactions. We hope that this work will provide a better understanding of the interactions of antimicrobial peptides with the membranes.
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Affiliation(s)
- Majid Jafari
- Department of Life Sciences Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
| | - Faramarz Mehrnejad
- Department of Life Sciences Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
| | - Farahnoosh Doustdar
- Department of Microbiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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24
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Wang X, Ren S, Guo C, Zhang W, Zhang X, Zhang B, Li S, Ren J, Hu Y, Wang H. Identification and functional analyses of novel antioxidant peptides and antimicrobial peptides from skin secretions of four East Asian frog species. Acta Biochim Biophys Sin (Shanghai) 2017; 49:550-559. [PMID: 28402481 DOI: 10.1093/abbs/gmx032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/17/2017] [Indexed: 12/20/2022] Open
Abstract
In the present study, we identified 50 peptides that are classified into 21 peptide families with antioxidant and/or antimicrobial activity from Amolops daiyunensis, Pelophylax hubeiensis, Hylarana maosuoensis and Nanorana pleskei, which belong to four different genera in the Ranidae and Dicroglossidae families. These four frog species were found for the first time to express antioxidant peptides (AOPs) and antimicrobial peptides (AMPs). These peptides include seven newly discovered families daiyunin-1, daiyunin-2, daiyunin-3, maosonensis-1MS1, pleskein-1, pleskein-2, and pleskein-3. Antioxidant and antimicrobial activity assays showed that some of these peptides have good biological activities. For example, at a concentration of 50 μM, nigroain-B-MS1, and nigroain-C-MS1 both exhibited relatively strong 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonicacid) (ABTS) free radical scavenging ability, with eradication rates of 99.7% and 68.3% (nigroain-B-MS1), and 99.8% and 58.3% (nigroain-C-MS1), respectively. These peptides are potential candidates for the development of novel antioxidant or AMP preparations.
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Affiliation(s)
- Xiao Wang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Shuguang Ren
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
- The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Chao Guo
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Weiqi Zhang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Xiaoli Zhang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Baowen Zhang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Sihan Li
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
| | - Jian Ren
- College of Basic, Tianjin Agricultural University, Tianjin 300384, China
| | - Yuhong Hu
- Instrumental Analysis Center, Hebei Normal University, Shijiazhuang 050024, China
| | - Hui Wang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China
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Dong Z, Luo W, Zhong H, Wang M, Song Y, Deng S, Zhang Y. Molecular cloning and characterization of antimicrobial peptides from skin of Hylarana guentheri. Acta Biochim Biophys Sin (Shanghai) 2017; 49:450-457. [PMID: 28338958 DOI: 10.1093/abbs/gmx023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Indexed: 11/14/2022] Open
Abstract
The cDNAs encoding antimicrobial peptides (AMPs) in the skin of Hylarana guentheri were identified, namely temporin (five peptides, termed temporin-GHa-GHd and temporin-GUa), brevinin-1 (one peptide, brevinin-1GUb), and brevinin-2 (eight peptides, brevinin-2GHd-2GHj, and brevinin-2GHb). Eleven of the 14 peptides have novel primary structures. Synthesized temporin GHa-GHd have broad-spectrum antimicrobial activities against Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), Gram-negative bacteria (Escherichia coli, Vibrio alginolyticus, and Pseudomonas aeruginosa), as well as fungus (Candida albicans). Among these tested strains, S. aureus was the most sensitive to temporin-GHa-GHd with minimum inhibitory concentration (MIC) values between 6.8 and 12.9 μM. They also exhibited antimicrobial activities against Methicillin-resistant S. aureus with the MIC ranging from 12.7 to 51.7 μM. Interestingly, secondary structure prediction shows that there is no α-helix in temporin-GHb, which illustrates that α-helix is not required for the antimicrobial activity of temporin-GHb. NaCl (at final concentrations of 0.15-2 M) decreased the antimicrobial activity of temporin-GHa-GHd slightly, while human serum and S. aureus V8 proteinase had no effect on the antimicrobial activity. Scanning electron microscopy images of E. coli and S. aureus showed that the surface of microbial cells was considerably rough and shrived after 1 h of treatment with temporin-GHa-GHd at 37°C. The stabilities of temporin-GHa-GHd in human serum or in S. aureus V8 proteinase make them to be promising candidates of novel antimicrobial agents or models for the development of novel AMPs.
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Affiliation(s)
- Zhu Dong
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
| | - Wenjie Luo
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
| | - Hengren Zhong
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
| | - Manchuriga Wang
- Hainan Key Laboratory of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Hainan University, Haikou 570228, China
| | - Yanting Song
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
| | - Shiming Deng
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
| | - Yingxia Zhang
- Key Laboratory of Tropical Biological Resources, Ministry of Education, College of Marine Science, Hainan University, Haikou 570228, China
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Marani MM, Perez LO, de Araujo AR, Plácido A, Sousa CF, Quelemes PV, Oliveira M, Gomes-Alves AG, Pueta M, Gameiro P, Tomás AM, Delerue-Matos C, Eaton P, Camperi SA, Basso NG, de Souza de Almeida Leite JR. Thaulin-1: The first antimicrobial peptide isolated from the skin of a Patagonian frog Pleurodema thaul (Anura: Leptodactylidae: Leiuperinae) with activity against Escherichia coli. Gene 2017; 605:70-80. [DOI: 10.1016/j.gene.2016.12.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/19/2016] [Accepted: 12/20/2016] [Indexed: 11/16/2022]
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Marani MM, Dourado FS, Quelemes PV, de Araujo AR, Perfeito MLG, Barbosa EA, Véras LMC, Coelho ALR, Andrade EB, Eaton P, Longo JPF, Azevedo RB, Delerue-Matos C, Leite JRSA. Characterization and Biological Activities of Ocellatin Peptides from the Skin Secretion of the Frog Leptodactylus pustulatus. JOURNAL OF NATURAL PRODUCTS 2015; 78:1495-1504. [PMID: 26107622 DOI: 10.1021/np500907t] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Eight new peptides were isolated from the skin secretion of the frog Leptodactylus pustulatus and their amino acid sequences determined by de novo sequencing and by cDNA cloning. Structural similarities between them and other antimicrobial peptides from the skin secretion of Leptodactylus genus frogs were found. Ocellatins-PT1 to -PT5 (25 amino acid residues) are amidated at the C-terminus, while ocellatins-PT6 to -PT8 (32 amino acid residues) have free carboxylates. Antimicrobial activity, hemolytic tests, and cytotoxicity against a murine fibroblast cell line were investigated. All peptides, except for ocellatin-PT2, have antimicrobial activity against at least one Gram-negative strain. Ocellatin-PT8 inhibited the growth of Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, and Salmonella choleraesuis strains with MICs in the 60-240 μM range. No significant effect was observed in human erythrocytes and in a murine fibroblast cell line after exposure to the peptides at MICs. A comparison between sequences obtained by both direct HPLC-MS de novo sequencing and cDNA cloning demonstrates the secretion of mature peptides derived from a pre-pro-peptide structure.
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Affiliation(s)
- Mariela Mirta Marani
- †CENPAT-CONICET, Centro Nacional Patagónico, Consejo Nacional de Investigaciones Científicas y Técnicas, Puerto Madryn, Chubut, Argentina
| | - Flávio Santos Dourado
- ‡Secretaria de Vigilância em Saúde, Ministério da Saúde, SVS/MS, Brasília, DF, Brazil
| | - Patrick Veras Quelemes
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
| | - Alyne Rodrigues de Araujo
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
| | - Márcia Luana Gomes Perfeito
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
| | - Eder Alves Barbosa
- ⊥Programa de Pós-Graduação em Biologia Molecular, Departamento de Biologia Molecular, Universidade de Brasília, Brasília, DF, Brazil
| | - Leiz Maria Costa Véras
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
| | - Andreia Luísa Rodrigues Coelho
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
- ∥REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Porto, Portugal
| | - Etielle Barroso Andrade
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
- ∇Programa de Pós-Graduação em Biodiversidade e Biotecnologia, BIONORTE, Universidade Federal do Maranhão, UFMA, São Luís, MA, Brazil
| | - Peter Eaton
- ○UCIBIO, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - João Paulo Figueiró Longo
- #Department of Genetics and Morphology, Institute of Biological Sciences, Universidade de Brasília, Brasilia, Brazil
| | - Ricardo Bentes Azevedo
- #Department of Genetics and Morphology, Institute of Biological Sciences, Universidade de Brasília, Brasilia, Brazil
| | - Cristina Delerue-Matos
- ∥REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Porto, Portugal
| | - José Roberto S A Leite
- §Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Biotec, Campus Ministro Reis Velloso, Universidade Federal do Piauí, UFPI, Parnaiba, PI, Brazil
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28
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Geng X, Wei H, Shang H, Zhou M, Chen B, Zhang F, Zang X, Li P, Sun J, Che J, Zhang Y, Xu C. Proteomic analysis of the skin of Chinese giant salamander (Andrias davidianus). J Proteomics 2015; 119:196-208. [DOI: 10.1016/j.jprot.2015.02.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/07/2015] [Accepted: 02/11/2015] [Indexed: 12/18/2022]
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Wang G, Mishra B, Lau K, Lushnikova T, Golla R, Wang X. Antimicrobial peptides in 2014. Pharmaceuticals (Basel) 2015; 8:123-50. [PMID: 25806720 PMCID: PMC4381204 DOI: 10.3390/ph8010123] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/16/2015] [Accepted: 03/17/2015] [Indexed: 12/13/2022] Open
Abstract
This article highlights new members, novel mechanisms of action, new functions, and interesting applications of antimicrobial peptides reported in 2014. As of December 2014, over 100 new peptides were registered into the Antimicrobial Peptide Database, increasing the total number of entries to 2493. Unique antimicrobial peptides have been identified from marine bacteria, fungi, and plants. Environmental conditions clearly influence peptide activity or function. Human α-defensin HD-6 is only antimicrobial under reduced conditions. The pH-dependent oligomerization of human cathelicidin LL-37 is linked to double-stranded RNA delivery to endosomes, where the acidic pH triggers the dissociation of the peptide aggregate to release its cargo. Proline-rich peptides, previously known to bind to heat shock proteins, are shown to inhibit protein synthesis. A model antimicrobial peptide is demonstrated to have multiple hits on bacteria, including surface protein delocalization. While cell surface modification to decrease cationic peptide binding is a recognized resistance mechanism for pathogenic bacteria, it is also used as a survival strategy for commensal bacteria. The year 2014 also witnessed continued efforts in exploiting potential applications of antimicrobial peptides. We highlight 3D structure-based design of peptide antimicrobials and vaccines, surface coating, delivery systems, and microbial detection devices involving antimicrobial peptides. The 2014 results also support that combination therapy is preferred over monotherapy in treating biofilms.
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Affiliation(s)
- Guangshun Wang
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA.
| | - Biswajit Mishra
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA
| | - Kyle Lau
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA
| | - Tamara Lushnikova
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA
| | - Radha Golla
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA
| | - Xiuqing Wang
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA
- Institute of Clinical Laboratory, Ningxia Medical University, Yinchuan 750004, China
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Yan QJ, Huang LH, Sun Q, Jiang ZQ, Wu X. Isolation, identification and synthesis of four novel antioxidant peptides from rice residue protein hydrolyzed by multiple proteases. Food Chem 2015; 179:290-5. [PMID: 25722167 DOI: 10.1016/j.foodchem.2015.01.137] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/18/2014] [Accepted: 01/31/2015] [Indexed: 10/24/2022]
Abstract
Multiple proteases were optimized to hydrolyze the rice residue protein (RRP) to produce novel antioxidant peptides. An antioxidant peptide fraction (RRPB3) with IC50 of 0.25 mg/ml was purified from the RRP hydrolysate using membrane ultrafiltration followed by size exclusion chromatography and reversed-phase FPLC. RRPB3 was found to include four peptides (RRPB3 I-IV) and their amino acid sequences were RPNYTDA (835.9 Da), TSQLLSDQ (891.0 Da), TRTGDPFF (940.0 Da) and NFHPQ (641.7 Da), respectively. Furthermore, four peptides were chemically synthesized and their antioxidant activities were assessed by DPPH radical scavenging, ABTS radical scavenging assay and FRAP-Fe(3+) reducing assay, respectively. Both RRPB3 I and III showed synergistic antioxidant activity compared to each of them used alone. All four synthetic peptides showed excellent stability against simulated gastrointestinal proteases. Therefore, the peptides isolated from RRP may be used as potential antioxidants in the food and drug industries.
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Affiliation(s)
- Qiao-Juan Yan
- College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Lin-Hua Huang
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Qian Sun
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing 100083, China
| | - Zheng-Qiang Jiang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing 100083, China.
| | - Xia Wu
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing 100083, China
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