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Buziashvili A, Yemets A. Lactoferrin and its role in biotechnological strategies for plant defense against pathogens. Transgenic Res 2023; 32:1-16. [PMID: 36534334 PMCID: PMC9761627 DOI: 10.1007/s11248-022-00331-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022]
Abstract
Agricultural crops are susceptible to many diseases caused by various pathogens, such as viruses, bacteria and fungi. This paper reviews the general principles of plant protection against pathogens, as well as the role of iron and antimicrobial peptide metabolism in plant immunity. The article highlights the principles of antibacterial, fungicidal and antiviral action of lactoferrin, a mammalian secretory glycoprotein, and lactoferrin peptides, and their role in protecting plants from phytopathogens. This review offers a comprehensive analysis and shows potential prospects of using the lactoferrin gene to enhance plant resistance to various phytopathogens, as well as the advantages of this biotechnological approach over existing methods of protecting plants against various diseases.
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Affiliation(s)
- Anastasiia Buziashvili
- Department of Cell Biology and Biotechnology, Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Baidy-Vyshnevetskogo Str., 2a, Kyiv, 04123 Ukraine
| | - Alla Yemets
- Department of Cell Biology and Biotechnology, Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Baidy-Vyshnevetskogo Str., 2a, Kyiv, 04123 Ukraine
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2
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Antifungal Peptides and Proteins to Control Toxigenic Fungi and Mycotoxin Biosynthesis. Int J Mol Sci 2021; 22:ijms222413261. [PMID: 34948059 PMCID: PMC8703302 DOI: 10.3390/ijms222413261] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
The global challenge to prevent fungal spoilage and mycotoxin contamination on food and feed requires the development of new antifungal strategies. Antimicrobial peptides and proteins (AMPs) with antifungal activity are gaining much interest as natural antifungal compounds due to their properties such as structure diversity and function, antifungal spectrum, mechanism of action, high stability and the availability of biotechnological production methods. Given their multistep mode of action, the development of fungal resistance to AMPs is presumed to be slow or delayed compared to conventional fungicides. Interestingly, AMPs also accomplish important biological functions other than antifungal activity, including anti-mycotoxin biosynthesis activity, which opens novel aspects for their future use in agriculture and food industry to fight mycotoxin contamination. AMPs can reach intracellular targets and exert their activity by mechanisms other than membrane permeabilization. The mechanisms through which AMPs affect mycotoxin production are varied and complex, ranging from oxidative stress to specific inhibition of enzymatic components of mycotoxin biosynthetic pathways. This review presents natural and synthetic antifungal AMPs from different origins which are effective against mycotoxin-producing fungi, and aims at summarizing current knowledge concerning their additional effects on mycotoxin biosynthesis. Antifungal AMPs properties and mechanisms of action are also discussed.
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Gruden Š, Poklar Ulrih N. Diverse Mechanisms of Antimicrobial Activities of Lactoferrins, Lactoferricins, and Other Lactoferrin-Derived Peptides. Int J Mol Sci 2021; 22:ijms222011264. [PMID: 34681923 PMCID: PMC8541349 DOI: 10.3390/ijms222011264] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 12/22/2022] Open
Abstract
Lactoferrins are an iron-binding glycoprotein that have important protective roles in the mammalian body through their numerous functions, which include antimicrobial, antitumor, anti-inflammatory, immunomodulatory, and antioxidant activities. Among these, their antimicrobial activity has been the most studied, although the mechanism behind antimicrobial activities remains to be elucidated. Thirty years ago, the first lactoferrin-derived peptide was isolated and showed higher antimicrobial activity than the native lactoferrin lactoferricin. Since then, numerous studies have investigated the antimicrobial potencies of lactoferrins, lactoferricins, and other lactoferrin-derived peptides to better understand their antimicrobial activities at the molecular level. This review defines the current antibacterial, antiviral, antifungal, and antiparasitic activities of lactoferrins, lactoferricins, and lactoferrin-derived peptides. The primary focus is on their different mechanisms of activity against bacteria, viruses, fungi, and parasites. The role of their structure, amino-acid composition, conformation, charge, hydrophobicity, and other factors that affect their mechanisms of antimicrobial activity are also reviewed.
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Luz C, Izzo L, Ritieni A, Mañes J, Meca G. Antifungal and antimycotoxigenic activity of hydrolyzed goat whey on Penicillium spp: An application as biopreservation agent in pita bread. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108717] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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5
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Xu T, Cao L, Zeng J, Franco CMM, Yang Y, Hu X, Liu Y, Wang X, Gao Y, Bu Z, Shi L, Zhou G, Zhou Q, Liu X, Zhu Y. The antifungal action mode of the rice endophyte Streptomyces hygroscopicus OsiSh-2 as a potential biocontrol agent against the rice blast pathogen. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 160:58-69. [PMID: 31519258 DOI: 10.1016/j.pestbp.2019.06.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/17/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
Microbial antagonists and their bioactive metabolites provide one of the best alternatives to chemical pesticides to control crop disease for sustainable agriculture and global food security. The rice endophyte Streptomyces hygroscopicus OsiSh-2, with remarkable antagonistic activity towards the rice blast fungus Magnaporthe oryzae, was reported in our previous study. The present study deciphered the possible direct interaction mode of OsiSh-2 against M. oryzae. An in vitro antibiotic assay for OsiSh-2 culture filtrate revealed strong suppression of mycelial growth, conidial germination and appressorial formation of M. oryzae. Meanwhile, severe morphological and internal abnormalities in M. oryzae hyphae were observed under a scanning electron microscope and transmission electron microscope. Foliar treatment of rice seedlings by OsiSh-2 culture filtrate in the greenhouse and in the field showed 23.5% and 28.3% disease reduction, respectively. Correspondingly, OsiSh-2 culture filtrate could induce disorganized chitin deposition in the cell wall and lowered ergosterol content in the cell membrane of M. oryzae. Additionally, cell wall integrity pathway activation, large cell electrolytes release, reactive oxygen species accumulation and tricarboxylic acid cycle-related enzyme activity changes were found in M. oryzae. All these results suggested that the direct antagonistic activity of OsiSh-2 against M. oryzae may be attributed to damaging the integrity of the cell wall and membrane and disrupting mitochondrial function in the pathogen.
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Affiliation(s)
- Ting Xu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Lidan Cao
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Jiarui Zeng
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Christopher M M Franco
- Department of Medical Biotechnology, School of Medicine, Flinders University, Adelaide, SA 5042, Australia
| | - Yuanzhu Yang
- Yahua Seeds Science Academy of Hunan, Changsha, Hunan 410119, China
| | - Xiaochun Hu
- Yahua Seeds Science Academy of Hunan, Changsha, Hunan 410119, China
| | - Ying Liu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Xiang Wang
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Yan Gao
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Zhigang Bu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Liming Shi
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guoying Zhou
- Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Central South University of Forestry and Technology, Changsha, Hunan 410008, China
| | - Qian Zhou
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Xuanming Liu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Yonghua Zhu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha, Hunan 410082, China.
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Memariani H, Memariani M, Pourmand MR. Venom-derived peptide Mastoparan-1 eradicates planktonic and biofilm-embedded methicillin-resistant Staphylococcus aureus isolates. Microb Pathog 2018; 119:72-80. [DOI: 10.1016/j.micpath.2018.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/14/2018] [Accepted: 04/03/2018] [Indexed: 01/10/2023]
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7
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Hao Y, Yang N, Teng D, Wang X, Mao R, Wang J. A review of the design and modification of lactoferricins and their derivatives. Biometals 2018; 31:331-341. [PMID: 29455278 DOI: 10.1007/s10534-018-0086-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 02/14/2018] [Indexed: 11/28/2022]
Abstract
Lactoferricin (Lfcin), a multifunction short peptide with a length of 25 residues, is derived from the whey protein lactoferrin by acidic pepsin hydrolysis. It has potent nutritional enhancement, antimicrobial, anticancer, antiviral, antiparasitic, and anti-inflammatory activities. This review describes the research advantages of the above biological functions, with attention to the molecular design and modification of Lfcin. In this examination of design and modification studies, research on the identification of Lfcin active derivatives and crucial amino acid residues is also reviewed. Many strategies for Lfcin optimization have been studied in recent decades, but we mainly introduce chemical modification, cyclization, chimera and polymerization of this peptide. Modifications such as incorporation of D-amino acids, acetylation and/or amidation could effectively improve the activity and stability of these compounds. Due to their wide array of bio-functions and applications, Lfcins have great potential to be developed as biological agents with multiple functions involved with nutritional enhancement, as well as disease preventive and therapeutic effects.
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Affiliation(s)
- Ya Hao
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,R & D Center, Beijing Shengtai Clouds Bio-Technology, Inc., Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Na Yang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Da Teng
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Xiumin Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Ruoyu Mao
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Jianhua Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China. .,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China.
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8
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Ruiz VE, Cerioni L, Zampini IC, Cuello S, Isla MI, Hilal M, Rapisarda VA. UV-B radiation on lemons enhances antifungal activity of flavedo extracts against Penicillium digitatum. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Fernandes KE, Carter DA. The Antifungal Activity of Lactoferrin and Its Derived Peptides: Mechanisms of Action and Synergy with Drugs against Fungal Pathogens. Front Microbiol 2017; 8:2. [PMID: 28149293 PMCID: PMC5241296 DOI: 10.3389/fmicb.2017.00002] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/03/2017] [Indexed: 11/13/2022] Open
Abstract
Lactoferrin is a multifunctional iron-binding glycoprotein belonging to the transferrin family. It is found abundantly in milk and is present as a major protein in human exocrine secretions where it plays a role in the innate immune response. Various antifungal functions of lactoferrin have been reported including a wide spectrum of activity across yeasts and molds and synergy with other antifungal drugs in combination therapy, and various modes of action have been proposed. Bioactive peptides derived from lactoferrin can also exhibit strong antifungal activity, with some surpassing the potency of the whole protein. This paper reviews current knowledge of the spectrum of activity, proposed mechanisms of action, and capacity for synergy of lactoferrin and its peptides, including the three most studied derivatives: lactoferricin, lactoferrampin, and Lf(1-11), as well as some lactoferrin-derived variants and modified peptides.
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Affiliation(s)
- Kenya E Fernandes
- School of Life and Environmental Sciences, University of Sydney Sydney, NSW, Australia
| | - Dee A Carter
- School of Life and Environmental Sciences, University of Sydney Sydney, NSW, Australia
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10
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Kaur P, Joshi N, Singh I, Saini H. Identification of cyclic lipopeptides produced byBacillus vallismortisR2 and their antifungal activity againstAlternaria alternata. J Appl Microbiol 2016; 122:139-152. [DOI: 10.1111/jam.13303] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 08/21/2016] [Accepted: 09/17/2016] [Indexed: 11/28/2022]
Affiliation(s)
- P.K. Kaur
- Department of Microbiology; Guru Nanak Dev University; Amritsar India
| | - N. Joshi
- Department of Natural Products; National Institute of Pharmaceutical Education and Research; Mohali India
| | - I.P. Singh
- Department of Natural Products; National Institute of Pharmaceutical Education and Research; Mohali India
| | - H.S. Saini
- Department of Microbiology; Guru Nanak Dev University; Amritsar India
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11
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Vasilchenko AS, Yuryev M, Ryazantsev DY, Zavriev SK, Feofanov AV, Grishin EV, Rogozhin EA. Studying of cellular interaction of hairpin-like peptide EcAMP1 from barnyard grass (Echinochloa crusgalli L.) seeds with plant pathogenic fungus Fusarium solani using microscopy techniques. SCANNING 2016; 38:591-598. [PMID: 26855384 DOI: 10.1002/sca.21305] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/22/2016] [Indexed: 05/06/2023]
Abstract
An interaction of recombinant hairpin-like cationic peptide EcAMP1 with conidia of plant pathogenic fungus Fusarium solani at the cellular level was studied by a combination of microscopic methods. EcAMP1 is from barnyard grass (Echinochloa crusgalli L.), and obtained by heterologous expression in Escherichia coli system. As a result, a direct relationship between hyphal growth inhibition and increasing active peptide concentration, time of incubation and fungal physiological condition has been determined. Dynamics of accumulation and redistribution of the peptide studied on fungal cellular cover and inside the conidia cells has been shown. The dynamics are dependent on time of coupling, as well as, a dissimilarity of EcAMP1 binding with cover of fungal conidia and its stepwise accumulation and diffuse localization in the cytoplasm. Correlation between structural disruption of fungal conidia and the presence of morphological changes has also been found. The correlation was found under the influence of peptide high concentrations at concentrations above 32 μM. The results indicate the presence of a binding of EcAMP1 with the surface of fungal conidia, thus, demonstrating a main specificity for its antifungal action at the cellular level. These results, however, cannot exclude the existence of attendant EcAMP1 action based on its intracellular localization on some specific targets. SCANNING 38:591-598, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Alexey S Vasilchenko
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, Orenburg, Russian Federation
- Department of Biochemistry and Microbiology, Orenburg State University, Orenburg, Russian Federation
| | - Mikhail Yuryev
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russian Federation
| | - Dmitry Yu Ryazantsev
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Sergey K Zavriev
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Alexey V Feofanov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Eugene V Grishin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Eugene A Rogozhin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
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Bruni N, Capucchio MT, Biasibetti E, Pessione E, Cirrincione S, Giraudo L, Corona A, Dosio F. Antimicrobial Activity of Lactoferrin-Related Peptides and Applications in Human and Veterinary Medicine. Molecules 2016; 21:E752. [PMID: 27294909 PMCID: PMC6273662 DOI: 10.3390/molecules21060752] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 01/15/2023] Open
Abstract
Antimicrobial peptides (AMPs) represent a vast array of molecules produced by virtually all living organisms as natural barriers against infection. Among AMP sources, an interesting class regards the food-derived bioactive agents. The whey protein lactoferrin (Lf) is an iron-binding glycoprotein that plays a significant role in the innate immune system, and is considered as an important host defense molecule. In search for novel antimicrobial agents, Lf offers a new source with potential pharmaceutical applications. The Lf-derived peptides Lf(1-11), lactoferricin (Lfcin) and lactoferrampin exhibit interesting and more potent antimicrobial actions than intact protein. Particularly, Lfcin has demonstrated strong antibacterial, anti-fungal and antiparasitic activity with promising applications both in human and veterinary diseases (from ocular infections to osteo-articular, gastrointestinal and dermatological diseases).
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Affiliation(s)
- Natascia Bruni
- Istituto Farmaceutico Candioli, Beinasco (To) 10092, Italy.
| | | | - Elena Biasibetti
- Department of Veterinary Sciences, University of Torino, Torino 10095, Italy.
| | - Enrica Pessione
- Department of Life Sciences and Systems Biology, University of Torino, Torino 10123, Italy.
| | - Simona Cirrincione
- Department of Life Sciences and Systems Biology, University of Torino, Torino 10123, Italy.
| | | | | | - Franco Dosio
- Department of Drug Science and Technology, University of Torino, Torino 10125, Italy.
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13
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Puig M, Moragrega C, Ruz L, Calderón CE, Cazorla FM, Montesinos E, Llorente I. Interaction of antifungal peptide BP15 with Stemphylium vesicarium , the causal agent of brown spot of pear. Fungal Biol 2016; 120:61-71. [DOI: 10.1016/j.funbio.2015.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 10/13/2015] [Accepted: 10/23/2015] [Indexed: 02/08/2023]
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Puig M, Moragrega C, Ruz L, Montesinos E, Llorente I. Postinfection Activity of Synthetic Antimicrobial Peptides Against Stemphylium vesicarium in Pear. PHYTOPATHOLOGY 2014; 104:1192-200. [PMID: 24875384 DOI: 10.1094/phyto-02-14-0036-r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Brown spot of pear is a fungal disease of economic importance caused by Stemphylium vesicarium that affects the pear crops in Europe. Due to the characteristics of this disease and the moderate efficacy of available fungicides, the effectiveness of control measures is very limited; however, synthetic antimicrobial peptides (AMPs) may be a complement to these fungicides. In the present study, 12 AMPs of the CECMEL11 library were screened for fungicidal activity against S. vesicarium. In vitro experiments showed that eight AMPs significantly reduced the germination of conidia. The most effective peptides, BP15, BP22, and BP25, reduced fungal growth and sporulation at concentrations below 50 μM. Leaf assays showed that preventive application of BP15 and BP22 did not reduce infection; however, when the peptides were applied curatively, infection was significantly reduced. The use of a BP15 fluorescein 5-isothiocyanate conjugate revealed that the peptide binds to hyphae and germ tubes and produces malformations that irreversibly stop their development.
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15
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Théolier J, Fliss I, Jean J, Hammami R. Antimicrobial Peptides of Dairy Proteins: From Fundamental to Applications. FOOD REVIEWS INTERNATIONAL 2014. [DOI: 10.1080/87559129.2014.896017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Théolier J, Fliss I, Jean J, Hammami R. MilkAMP: a comprehensive database of antimicrobial peptides of dairy origin. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s13594-013-0153-2] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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van der Weerden NL, Bleackley MR, Anderson MA. Properties and mechanisms of action of naturally occurring antifungal peptides. Cell Mol Life Sci 2013; 70:3545-70. [PMID: 23381653 PMCID: PMC11114075 DOI: 10.1007/s00018-013-1260-1] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/11/2012] [Accepted: 01/03/2013] [Indexed: 01/06/2023]
Abstract
Antimicrobial peptides are a vital component of the innate immune system of all eukaryotic organisms and many of these peptides have potent antifungal activity. They have potential application in the control of fungal pathogens that are a serious threat to both human health and food security. Development of antifungal peptides as therapeutics requires an understanding of their mechanism of action on fungal cells. To date, most research on antimicrobial peptides has focused on their activity against bacteria. Several antimicrobial peptides specifically target fungal cells and are not active against bacteria. Others with broader specificity often have different mechanisms of action against bacteria and fungi. This review focuses on the mechanism of action of naturally occurring antifungal peptides from a diverse range of sources including plants, mammals, amphibians, insects, crabs, spiders, and fungi. While antimicrobial peptides were originally proposed to act via membrane permeabilization, the mechanism of antifungal activity for these peptides is generally more complex and often involves entry of the peptide into the cell.
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Souza ALA, Díaz-Dellavalle P, Cabrera A, Larrañaga P, Dalla-Rizza M, De-Simone SG. Antimicrobial activity of pleurocidin is retained in Plc-2, a C-terminal 12-amino acid fragment. Peptides 2013; 45:78-84. [PMID: 23603258 DOI: 10.1016/j.peptides.2013.03.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 03/26/2013] [Accepted: 03/27/2013] [Indexed: 11/23/2022]
Abstract
An analysis of a series of five peptides composed of various portions of the pleurocidin (Plc) sequence identified a l2-amino acid fragment from the C-terminus of Plc, designated Plc-2, as the smallest fragment that retained a antimicrobial activity comparable to that of the parent compound. MIC tests in vitro with low-ionic-strength medium showed that Plc-2 has potent activity against Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus but not against Enterococcus faecalis. The antifungal activity of the synthetic peptides against phytopathogenic fungi, such as Fusarium oxysporum, Colletotrichum sp., Aspergillus niger and Alternaria sp., also identified Plc-2 as a biologically active peptide. Microscopy studies of fluorescently stained fungi treated with Plc-2 demonstrated that cytoplasmic and nuclear membranes were compromised in all strains of phytopathogenic fungi tested. Together, these results identify Plc-2 as a potential antimicrobial agent with similar properties to its parent compound, pleurocidin. In addition, it demonstrated that the KHVGKAALTHYL residues are critical for the antimicrobial activity described for pleurocidin.
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Affiliation(s)
- Andre L A Souza
- National Institute of Science and Technology on Innovation on Neglected Diseases (INCT-IDN)/Center for Technological Development in Health (CDTS), FIOCRUZ, Rio de Janeiro, RJ, Brazil
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Muñoz A, Read ND. Live-cell imaging and analysis shed light on the complexity and dynamics of antimicrobial Peptide action. Front Immunol 2012; 3:248. [PMID: 22912634 PMCID: PMC3418630 DOI: 10.3389/fimmu.2012.00248] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 07/25/2012] [Indexed: 01/04/2023] Open
Affiliation(s)
- Alberto Muñoz
- Fungal Cell Biology Group, Institute of Cell Biology, University of Edinburgh Edinburgh, UK
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Han J, Lakshman DK, Galvez LC, Mitra S, Baenziger PS, Mitra A. Transgenic expression of lactoferrin imparts enhanced resistance to head blight of wheat caused by Fusarium graminearum. BMC PLANT BIOLOGY 2012; 12:33. [PMID: 22405032 PMCID: PMC3364854 DOI: 10.1186/1471-2229-12-33] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 03/09/2012] [Indexed: 05/22/2023]
Abstract
BACKGROUND The development of plant gene transfer systems has allowed for the introgression of alien genes into plant genomes for novel disease control strategies, thus providing a mechanism for broadening the genetic resources available to plant breeders. Using the tools of plant genetic engineering, a broad-spectrum antimicrobial gene was tested for resistance against head blight caused by Fusarium graminearum Schwabe, a devastating disease of wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) that reduces both grain yield and quality. RESULTS A construct containing a bovine lactoferrin cDNA was used to transform wheat using an Agrobacterium-mediated DNA transfer system to express this antimicrobial protein in transgenic wheat. Transformants were analyzed by Northern and Western blots to determine lactoferrin gene expression levels and were inoculated with the head blight disease fungus F. graminearum. Transgenic wheat showed a significant reduction of disease incidence caused by F. graminearum compared to control wheat plants. The level of resistance in the highly susceptible wheat cultivar Bobwhite was significantly higher in transgenic plants compared to control Bobwhite and two untransformed commercial wheat cultivars, susceptible Wheaton and tolerant ND 2710. Quantification of the expressed lactoferrin protein by ELISA in transgenic wheat indicated a positive correlation between the lactoferrin gene expression levels and the levels of disease resistance. CONCLUSIONS Introgression of the lactoferrin gene into elite commercial wheat, barley and other susceptible cereals may enhance resistance to F. graminearum.
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Affiliation(s)
- Jigang Han
- Department of Plant Pathology, University of Nebraska Lincoln, Lincoln, NE 68583, USA
| | - Dilip K Lakshman
- USDA-ARS, Sustainable Agricultural Systems Laboratory, Beltsville, MD 20705, USA
| | - Leny C Galvez
- Department of Plant Pathology, University of Nebraska Lincoln, Lincoln, NE 68583, USA
| | - Sharmila Mitra
- Department of Agronomy & Horticulture, University of Nebraska Lincoln, Lincoln, NE 68583, USA
| | - Peter Stephen Baenziger
- Department of Agronomy & Horticulture, University of Nebraska Lincoln, Lincoln, NE 68583, USA
| | - Amitava Mitra
- Department of Plant Pathology, University of Nebraska Lincoln, Lincoln, NE 68583, USA
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Touba EP, Zakaria M, Tahereh E. Anti-fungal activity of cold and hot water extracts of spices against fungal pathogens of Roselle (Hibiscus sabdariffa) in vitro. Microb Pathog 2012; 52:125-9. [PMID: 22138549 DOI: 10.1016/j.micpath.2011.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 11/11/2011] [Accepted: 11/16/2011] [Indexed: 12/19/2022]
Abstract
Crude extracts of seven spices, viz. cardamom, chilli, coriander, onion, garlic, ginger, and galangale were made using cold water and hot water extraction and they were tested for their anti-fungal effects against the three Roselle pathogens i.e. Phoma exigua, Fusarium nygamai and Rhizoctonia solani using the 'poisoned food technique'. All seven spices studied showed significant anti-fungal activity at three concentrations (10, 20 and 30% of the crude extract) in-vitro. The cold water extract of garlic exhibited good anti-fungal activity against all three tested fungi. In the case of the hot water extracts, garlic and ginger showed the best anti-fungal activity. Of the two extraction methods, cold water extraction was generally more effective than hot water extraction in controlling the pathogens. Against P. exigua, the 10% cold water extracts of galangale, ginger, coriander and cardamom achieved total (100%) inhibition of pathogen mycelial growth. Total inhibition of F. nygamai mycelial growth was similarly achieved with the 10% cold water extracts garlic. Against R. solani, the 10% cold water extract of galangale was effective in imposing 100% inhibition. Accordingly, the 10% galangale extract effectively controlled both P. exigua and R. solani in vitro. None of the hot water extracts of the spices succeeded in achieving 100% inhibition of the pathogen mycelial growth.
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Pozo-Bayón MÁ, Monagas M, Bartolomé B, Moreno-Arribas MV. Wine features related to safety and consumer health: an integrated perspective. Crit Rev Food Sci Nutr 2012; 52:31-54. [PMID: 21991989 DOI: 10.1080/10408398.2010.489398] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This review presents a global view of the current situation of the scientific knowledge about aspects of wine with possible repercussions (positive or negative) on consumer health and wine safety. The presence in wine of some potential harmful compounds such as phytosanitary products, trace metal compounds, sulfites, and some toxics of microbial origin, such as ochratoxin A, ethyl carbamate, and biogenic amines, is discussed. The different strategies and alternative methodologies that are being carried out to reduce or to avoid the presence of these substances in wines are also discussed. In recent years much work has focused on establishing the scientific explanations for the positive biological effects of some wine compounds. In this review, we also examine the latest knowledge regarding wine and health, focusing on two types of compounds that have been related to the positive effects of moderate wine consumption, such as phenolic compounds and bioactive peptides.
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Affiliation(s)
- M Ángeles Pozo-Bayón
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
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23
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BASARAN PERVIN. ANTIFUNGAL EFFECT OF ACIDS AND SURFACE ACTIVE COMPOUNDS FOR POST-HARVEST CONTROL OF ASPERGILLUS PARASITICUS GROWTH ON HAZELNUT. J FOOD PROCESS PRES 2010. [DOI: 10.1111/j.1745-4549.2009.00442.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Xu G, Xiong W, Hu Q, Zuo P, Shao B, Lan F, Lu X, Xu Y, Xiong S. Lactoferrin-derived peptides and Lactoferricin chimera inhibit virulence factor production and biofilm formation in Pseudomonas aeruginosa. J Appl Microbiol 2010; 109:1311-8. [PMID: 20477900 DOI: 10.1111/j.1365-2672.2010.04751.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To investigate the bactericidal activity of lactoferrin-derived peptides and a new LF-derived peptides chimera (LFchimera) against P. aeruginosa and the influence on virulence factors of P. aeruginosa. METHODS AND RESULTS Lactoferricin (LFcin) and lactoferrampin (LFampin) are highly bioactive peptides isolated from the N-terminal region of lactoferrin (LF) by pepsin digestion. In this study, we designed LFchimera containing LFcin amino acids 17-30 and LFampin amino acids 268-284. Pseudomonas aeruginosa cells were incubated in medium with peptides at different concentrations, and then the assays of viability, pyocyanin, elastase activity and biofilm formation of P. aeruginosa were performed. We found that the concentration-dependent antibactericidal activity and down-regulating pyocyanin, elastase and biofilm formation of LFchimera were significantly stronger than those of LF, LFcin, LFampin or LFcin plus LFampin. CONCLUSIONS Our results indicated that LF, LFcin, LFampin and LFchimera were potential candidates to combat P. aeruginosa, and LFchimera was the most effective in them. SIGNIFICANCE AND IMPACT OF THE STUDY The new LFchimera has better activity against P. aeruginosa than LF, LFcin and LFampin and may be a promising new compound for treatment of P. aeruginosa infection.
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Affiliation(s)
- G Xu
- Department of Respiratory Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
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25
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Cerioni L, Volentini S, Prado F, Rapisarda V, Rodríguez-Montelongo L. Cellular damage induced by a sequential oxidative treatment on Penicillium digitatum. J Appl Microbiol 2010; 109:1441-9. [DOI: 10.1111/j.1365-2672.2010.04775.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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26
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Wang J, Tian Z, Teng D, Yang Y, Hu J, Wang J. Cloning, expression and characterization of Kunming mice lactoferrin and its N-lobe. Biometals 2010; 23:523-30. [PMID: 20130963 DOI: 10.1007/s10534-010-9294-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2009] [Accepted: 01/23/2010] [Indexed: 01/28/2023]
Abstract
The lactoferrin cDNA of Kunming mice was isolated by reverse transcription polymerase chain reaction and cloned into vector pET28a(+). Its deduced amino acid sequence was analyzed and compared with lactoferrin of other species. Its secondary and tertiary structure are predicted and modeled by bioinformatics tools online. Then recombinant Kunming mice lactoferrin and its N-lobe were both expressed successfully in the Escherichia coli BL21(DE3) in the form of inclusion bodies. After purification with Ni-NTA His-Bind resin, the yield of recombinant lactoferrin was 17 mg l(-1) with purity of 92.1%, and that of lactoferrin N-lobe was 20 mg l(-1) with purity of 98.5%. The inhibition efficiency of refolded lactoferrin N-lobe against Staphylococcus aureus ATCC 25923 reaches 48.6% at the concentration of 25 micromol l(-1). However, the refolded lactoferrin (12.5 micromol l(-1)) didn't display obvious inhibition activity in the test. The expression of recombinant Kunming mice lactoferrin and its N-lobe will be helpful for the study of lactoferrin on structure, function and application in a mouse model system.
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Affiliation(s)
- Jiarong Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, 100081 Beijing, China
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27
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Sporicidal activity of synthetic antifungal undecapeptides and control of Penicillium rot of apples. Appl Environ Microbiol 2009; 75:5563-9. [PMID: 19617390 DOI: 10.1128/aem.00711-09] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The antifungal activity of cecropin A(2-8)-melittin(6-9) hybrid undecapeptides, previously reported as active against plant pathogenic bacteria, was studied. A set of 15 sequences was screened in vitro against Fusarium oxysporum, Penicillium expansum, Aspergillus niger, and Rhizopus stolonifer. Most compounds were highly active against F. oxysporum (MIC < 2.5 microM) but were less active against the other fungi. The best peptides were studied for their sporicidal activity and for Sytox green uptake in F. oxysporum microconidia. A significant inverse linear relationship was observed between survival and fluorescence, indicating membrane disruption. Next, we evaluated the in vitro activity against P. expansum of a 125-member peptide library with the general structure R-X(1)KLFKKILKX(10)L-NH(2), where X(1) and X(10) corresponded to amino acids with various degrees of hydrophobicity and hydrophilicity and R included different N-terminal derivatizations. Fifteen sequences with MICs below 12.5 muM were identified. The most active compounds were BP21 {Ac,F,V} and BP34 {Ac,L,V} (MIC < 6.25 microM), where the braces denote R, X(1), and X(10) positions and where Ac is an acetyl group. The peptides had sporicidal activity against P. expansum conidia. Seven of these peptides were tested in vivo by evaluating their preventative effect of inhibition of P. expansum infection in apple fruits. The peptide Ts-FKLFKKILKVL-NH(2) (BP22), where Ts is a tosyl group, was the most active with an average efficacy of 56% disease reduction, which was slightly lower than that of a commercial formulation of the fungicide imazalil.
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28
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Chen GH, Yin LJ, Chiang IH, Jiang ST. Cloning and expression of antibacterial goat lactoferricin from Escherichia coli AD494(DE3)pLysS expression system. J Food Prot 2008; 71:2523-5. [PMID: 19244908 DOI: 10.4315/0362-028x-71.12.2523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Goat lactoferricin (GLfcin), an antibacterial peptide, is released from the N terminus of goat lactoferrin by pepsin digestion. Two GLfcin-related cDNAs, GLfcin L and GLfcin S, encoding Ala20-Ser60 and Ser36-Ser60 of goat lactoferrin, respectively, were cloned into the pET-23a(+) expression vector upstream from (His)6-Tag gene and transformed into Escherichia coli AD494(DE3)pLysS expression host. After being induced by isopropyl-beta-D-thiogalactopyranoside (IPTG), two (His)6-Tag fused recombinant lactoferricins, GLfcin L-His*Tag and GLfcin S-His*Tag, were expressed in soluble form within the E. coli cytoplasm. The GLfcin L-His*Tag and GLfcin S-His*Tag were purified using HisTrap affinity chromatography. According to an antibacterial activity assay using the agar diffusion method, GLfcin L-His*Tag had antibacterial activity against E. coli BCRC 11549, Staphylococcus aureus BCRC 25923, and Propionibacterium acnes BCRC 10723, while GLfcin S-His*Tag was able to inhibit the growth of E. coli BCRC 11549 and P. acnes BCRC 10723. These two recombinant lactoferricins behaved as thermostable peptides, which could retain their activity for up to 30 min of exposure at 100 degrees C.
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Affiliation(s)
- Gen-Hung Chen
- Department of Cosmetic Science,, Providence University, 200 Chung-Chi Rd., Taichung 43301, Taiwan
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29
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Enrique M, Marcos JF, Yuste M, Martínez M, Vallés S, Manzanares P. Inhibition of the wine spoilage yeast Dekkera bruxellensis by bovine lactoferrin-derived peptides. Int J Food Microbiol 2008; 127:229-34. [DOI: 10.1016/j.ijfoodmicro.2008.07.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Revised: 06/25/2008] [Accepted: 07/08/2008] [Indexed: 11/29/2022]
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30
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Montesinos E, Bardají E. Synthetic antimicrobial peptides as agricultural pesticides for plant-disease control. Chem Biodivers 2008; 5:1225-37. [PMID: 18649311 DOI: 10.1002/cbdv.200890111] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is a need of antimicrobial compounds in agriculture for plant-disease control, with low toxicity and reduced negative environmental impact. Antimicrobial peptides are produced by living organisms and offer strong possibilities in agriculture because new compounds can be developed based on natural structures with improved properties of activity, specificity, biodegradability, and toxicity. Design of new molecules has been achieved using combinatorial-chemistry procedures coupled to high-throughput screening systems and data processing with design-of-experiments (DOE) methodology to obtain QSAR equation models and optimized compounds. Upon selection of best candidates with low cytotoxicity and moderate stability to protease digestion, anti-infective activity has been evaluated in plant-pathogen model systems. Suitable compounds have been submitted to acute toxicity testing in higher organisms and exhibited a low toxicity profile in a mouse model. Large-scale production can be achieved by solution organic or chemoenzymatic procedures in the case of very small peptides, but, in many cases, production can be performed by biotechnological methods using genetically modified microorganisms (fermentation) or transgenic crops (plant biofactories).
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Affiliation(s)
- Emilio Montesinos
- Institute of Food and Agricultural Technology-CIDSAV-XaRTA, University of Girona, Campus Montilivi, E-18071 Girona.
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López-Expósito I, Amigo L, Recio I. Identification of the initial binding sites of alphas2-casein f(183-207) and effect on bacterial membranes and cell morphology. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2008; 1778:2444-9. [PMID: 18655768 DOI: 10.1016/j.bbamem.2008.06.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 06/19/2008] [Accepted: 06/27/2008] [Indexed: 11/15/2022]
Abstract
The aim of this work was to identify the initial binding sites to the bacterial membranes of the antimicrobial peptide alphas2-casein f(183-207) and also to acquire further insight into membrane permeabilization of this peptide. Furthermore, cell morphology was studied by transmission electron microscopy. In all the experiments, bovine LFcin was employed as a comparison. Results showed that initial binding sites of alphas2-casein f(183-207) peptide were lipoteichoic acid in Gram-positive bacteria and lipopolysaccharide in Gram-negative. The peptide was able to permeabilize the outer and inner membranes. Moreover, the alphas2-casein peptide f(183-207) generated pores in the outer membrane of Gram-negative bacteria and in the cell wall of Gram-positive bacteria. In the Gram-negative bacteria, f(183-207) originated cytoplasm condensation, and in the Gram-positive bacteria the cytoplasmic content leaked into the extracellular medium. Furthermore, the experiments of inner and outer membrane permeabilization performed with LFcin-B showed that this peptide also has the ability to permeabilize both the inner and outer membranes.
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Affiliation(s)
- Iván López-Expósito
- Instituto de Fermentaciones Industriales (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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Polyhexamethyl biguanide can eliminate contaminant yeasts from fuel-ethanol fermentation process. J Ind Microbiol Biotechnol 2008; 35:967-73. [PMID: 18506496 DOI: 10.1007/s10295-008-0371-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Accepted: 05/12/2008] [Indexed: 10/22/2022]
Abstract
Industrial ethanol fermentation is a non-sterile process and contaminant microorganisms can lead to a decrease in industrial productivity and significant economic loss. Nowadays, some distilleries in Northeastern Brazil deal with bacterial contamination by decreasing must pH and adding bactericides. Alternatively, contamination can be challenged by adding a pure batch of Saccharomyces cerevisiae-a time-consuming and costly process. A better strategy might involve the development of a fungicide that kills contaminant yeasts while preserving S. cerevisiae cells. Here, we show that polyhexamethyl biguanide (PHMB) inhibits and kills the most important contaminant yeasts detected in the distilleries of Northeastern Brazil without affecting the cell viability and fermentation capacity of S. cerevisiae. Moreover, some physiological data suggest that PHMB acts through interaction with the yeast membrane. These results support the development of a new strategy for controlling contaminant yeast population whilst keeping industrial yields high.
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Marcos JF, Muñoz A, Pérez-Payá E, Misra S, López-García B. Identification and rational design of novel antimicrobial peptides for plant protection. ANNUAL REVIEW OF PHYTOPATHOLOGY 2008; 46:273-301. [PMID: 18439131 DOI: 10.1146/annurev.phyto.121307.094843] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Peptides and small proteins exhibiting antimicrobial activity have been isolated from many organisms ranging from insects to humans, including plants. Their role in defense is established, and their use in agriculture was already being proposed shortly after their discovery. However, some natural peptides have undesirable properties that complicate their application. Advances in peptide synthesis and high-throughput activity screening have made possible the de novo and rational design of novel peptides with improved properties. This review summarizes findings in the identification and design of short antimicrobial peptides with activity against plant pathogens, and will discuss alternatives for their heterologous production suited to plant disease control. Recent studies suggest that peptide antimicrobial action is not due solely to microbe permeation as previously described, but that more subtle factors might account for the specificity and absence of toxicity of some peptides. The elucidation of the mode of action and interaction with microbes will assist the improvement of peptide design with a view to targeting specific problems in agriculture and providing new tools for plant protection.
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Affiliation(s)
- Jose F Marcos
- Departamento de Ciencia de los Alimentos, Instituto de Agroquímica y Tecnología de Alimentos-CSIC, 46100 Burjassot, Spain.
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Protective Effect of Milk Peptides: Antibacterial and Antitumor Properties. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 606:271-93. [DOI: 10.1007/978-0-387-74087-4_11] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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35
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Muñoz A, López-García B, Marcos JF. Comparative study of antimicrobial peptides to control citrus postharvest decay caused by Penicillium digitatum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:8170-6. [PMID: 17867640 DOI: 10.1021/jf0718143] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The objective of this study was to investigate and compare the in vitro efficacy and in vivo potential of eight distinct short antimicrobial peptides to control the postharvest green mold disease of oranges caused by the fungus Penicillium digitatum. The L-amino acid versions of the four peptides PAF26, PAF38, PAF40, and BM0, previously obtained by combinatorial approaches, were examined. The study included two antibacterial peptides formerly identified by rational design, BP15 and BP76, and it is demonstrated that they also have in vitro antifungal properties. The natural antimicrobial peptides melittin and indolicidin were also selected for comparison, due to their well-known properties and modes of action. In vitro and in vivo results indicated differential behaviors among peptides, regarding the inhibitory potency in growth media, selectivity against distinct microorganisms, fungicidal activity towards nongerminated conidia of P. digitatum, and efficacy in fruit inoculation assays. Interestingly, a high in vitro inhibitory activity did not necessarily associate with an effective control of fruit infection by P. digitatum. The short tryptophan-rich cationic peptides PAF26, PAF38, PAF40, and BM0 were lethal to conidia of P. digitatum, and this property is correlated with better protection in the decay control test.
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Affiliation(s)
- Alberto Muñoz
- Departamento de Ciencia de los Alimentos, Instituto de Agroquímica y Tecnología de Alimentos (IATA), CSIC, Apartado de Correos 73, Burjassot, 46100 Valencia, Spain
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36
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Enrique M, Marcos JF, Yuste M, Martínez M, Vallés S, Manzanares P. Antimicrobial action of synthetic peptides towards wine spoilage yeasts. Int J Food Microbiol 2007; 118:318-25. [PMID: 17822793 DOI: 10.1016/j.ijfoodmicro.2007.07.049] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2006] [Revised: 04/03/2007] [Indexed: 11/27/2022]
Abstract
The antimicrobial action of selected short synthetic peptides against wine spoilage yeasts such as Cryptococcus albidus, Dekkera bruxellensis, Pichia membranifaciens, Saccharomyces cerevisiae, Zygosaccharomyces bailii and Zygosaccharomyces bisporus has been examined. Peptides analyzed include nine sequence-related antifungal hexapeptides (PAFs) previously developed by a combinatorial approach, and two representative lactoferricin B (LfcinB)-derived peptides. Different peptides had distinct activity profiles. In vitro assays identified the peptides PAF26, PAF36, and LfcinB(17-31), as having growth inhibitory properties towards several of the yeasts at low micromolar concentrations. Z. bailii and Z. bisporus were the most sensitive yeasts. In addition to their fungistatic activity, the three peptides showed fungicidal properties towards Z. bailii, Z. bisporus, and S. cerevisiae in laboratory growth medium. Remarkably, only LfcinB(17-31) against Z. bisporus had inhibitory and fungicidal properties in wine at the concentrations assayed, showing that the antimicrobial action of each peptide is dependent on both the food matrix and the target micro-organism. Lack of fungicidal activity of peptides against Z. bailii in wine is related to the presence of salt ions other than divalent cations. On the contrary, fungicidal activity of LfcinB(17-31) towards Z. bisporus was not significantly affected by wine salts. Our data identify a bioactive peptide from natural origin with potential use against the food spoilage yeast Z. bisporus, and indicate that the application of antimicrobial peptides in wine preservation deserves further investigation.
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Affiliation(s)
- María Enrique
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (CSIC), P. O. Box 73, 46100 Burjassot, Valencia, Spain
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Muñoz A, López-García B, Pérez-Payá E, Marcos JF. Antimicrobial properties of derivatives of the cationic tryptophan-rich hexapeptide PAF26. Biochem Biophys Res Commun 2007; 354:172-7. [PMID: 17222805 DOI: 10.1016/j.bbrc.2006.12.173] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Accepted: 12/21/2006] [Indexed: 11/26/2022]
Abstract
Short antimicrobial peptides represent an alternative to fight pathogen infections. PAF26 is a hexapeptide identified previously by a combinatorial approach against the fungus Penicillium digitatum and shows antimicrobial properties towards certain phytopathogenic fungi. In this work, PAF26 was used as lead compound and its properties were compared with two series of derivatives, obtained by either systematic alanine substitution or N-terminal amino acid addition. The alanine scan approach underlined the optimized sequence of PAF26 in terms of potency and permeation capability, and also the higher contribution of the cationic residues to these properties. The N-terminal addition of amino acids resulted in new heptapeptides with variations in their antimicrobial characteristics, and very low cytolysis to human red blood cells. Positive (Arg or Lys) and aromatic (Phe or Trp) residue addition increased broad spectrum activity of PAF26. Noteworthy, addition of selected residues had specific effects on the properties of derivatives of PAF26.
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Affiliation(s)
- Alberto Muñoz
- Instituto de Agroquímica y Tecnología de Alimentos (IATA)-CSIC, Apartado de Correos 73, Burjassot, 46100 Valencia, Spain
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38
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Muñoz A, López-García B, Marcos JF. Studies on the mode of action of the antifungal hexapeptide PAF26. Antimicrob Agents Chemother 2006; 50:3847-55. [PMID: 17065623 PMCID: PMC1635192 DOI: 10.1128/aac.00650-06] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The small antimicrobial peptide PAF26 (Ac-RKKWFW-NH(2)) has been identified by a combinatorial approach and shows preferential activity toward filamentous fungi. In this work, we investigated the mode of action and inhibitory effects of PAF26 on the fungus Penicillium digitatum. The dye Sytox Green was used to demonstrate that PAF26 induced cell permeation. However, microscopic observations showed that sub-MIC concentrations of PAF26 produced both alterations of hyphal morphology (such as altered polar growth and branching) and chitin deposition in areas of no detectable permeation. Analysis of dose-response curves of inhibition and permeation suggested that growth inhibition is not solely a consequence of permeation. In order to shed light on the mode of PAF26 action, its antifungal properties were compared with those of melittin, a well-known pore-forming peptide that kills through cytolysis. While the 50% inhibitory concentrations and MICs of the two peptides against P. digitatum mycelium were comparable, they differed markedly in their fungicidal activities toward conidia and their hemolytic activities toward human red blood cells. Kinetic studies showed that melittin quickly induced Penicillium cell permeation, while PAF26-induced Sytox Green uptake was significantly slower and less efficient. Therefore, the ultimate growth inhibition and morphological alterations induced by PAF26 for P. digitatum are not likely a result of conventional pore formation. Fluorescently labeled PAF26 was used to demonstrate its specific in vivo interaction and translocation inside germ tubes and hyphal cells, at concentrations as low as 0.3 muM (20 times below the MIC), at which no inhibitory, morphological, or permeation effects were observed. Interestingly, internalized PAF26 could bind to cellular RNAs, since in vitro nonspecific RNA binding activity of PAF26 was demonstrated by electrophoretic mobility shift assays. We propose that PAF26 is a short, de novo-designed penetratin-type peptide that has multiple detrimental effects on target fungi, which ultimately result in permeation and killing.
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Affiliation(s)
- Alberto Muñoz
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Apartado de Correos 73, Burjassot, E-46100 Valencia, Spain.
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