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Caravaca-Fuentes P, Camó C, Oliveras À, Baró A, Francés J, Badosa E, Planas M, Feliu L, Montesinos E, Bonaterra A. A Bifunctional Peptide Conjugate That Controls Infections of Erwinia amylovora in Pear Plants. Molecules 2021; 26:molecules26113426. [PMID: 34198776 PMCID: PMC8201157 DOI: 10.3390/molecules26113426] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 12/11/2022] Open
Abstract
In this paper, peptide conjugates were designed and synthesized by incorporating the antimicrobial undecapeptide BP16 at the C- or N-terminus of the plant defense elicitor peptide flg15, leading to BP358 and BP359, respectively. The evaluation of their in vitro activity against six plant pathogenic bacteria revealed that BP358 displayed MIC values between 1.6 and 12.5 μM, being more active than flg15, BP16, BP359, and an equimolar mixture of BP16 and flg15. Moreover, BP358 was neither hemolytic nor toxic to tobacco leaves. BP358 triggered the overexpression of 6 out of the 11 plant defense-related genes tested. Interestingly, BP358 inhibited Erwinia amylovora infections in pear plants, showing slightly higher efficacy than the mixture of BP16 and flg15, and both treatments were as effective as the antibiotic kasugamycin. Thus, the bifunctional peptide conjugate BP358 is a promising agent to control fire blight and possibly other plant bacterial diseases.
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Affiliation(s)
- Pau Caravaca-Fuentes
- LIPPSO, Department of Chemistry, Campus Montilivi, University of Girona, 17003 Girona, Spain; (P.C.-F.); (C.C.); (À.O.); (M.P.); (L.F.)
| | - Cristina Camó
- LIPPSO, Department of Chemistry, Campus Montilivi, University of Girona, 17003 Girona, Spain; (P.C.-F.); (C.C.); (À.O.); (M.P.); (L.F.)
| | - Àngel Oliveras
- LIPPSO, Department of Chemistry, Campus Montilivi, University of Girona, 17003 Girona, Spain; (P.C.-F.); (C.C.); (À.O.); (M.P.); (L.F.)
| | - Aina Baró
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, Campus Montilivi, University of Girona, 17003 Girona, Spain; (A.B.); (J.F.); (E.B.); (E.M.)
| | - Jesús Francés
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, Campus Montilivi, University of Girona, 17003 Girona, Spain; (A.B.); (J.F.); (E.B.); (E.M.)
| | - Esther Badosa
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, Campus Montilivi, University of Girona, 17003 Girona, Spain; (A.B.); (J.F.); (E.B.); (E.M.)
| | - Marta Planas
- LIPPSO, Department of Chemistry, Campus Montilivi, University of Girona, 17003 Girona, Spain; (P.C.-F.); (C.C.); (À.O.); (M.P.); (L.F.)
| | - Lidia Feliu
- LIPPSO, Department of Chemistry, Campus Montilivi, University of Girona, 17003 Girona, Spain; (P.C.-F.); (C.C.); (À.O.); (M.P.); (L.F.)
| | - Emilio Montesinos
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, Campus Montilivi, University of Girona, 17003 Girona, Spain; (A.B.); (J.F.); (E.B.); (E.M.)
| | - Anna Bonaterra
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, Campus Montilivi, University of Girona, 17003 Girona, Spain; (A.B.); (J.F.); (E.B.); (E.M.)
- Correspondence: ; Tel.: +34-660719646
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Lima PG, Oliveira JTA, Amaral JL, Freitas CDT, Souza PFN. Synthetic antimicrobial peptides: Characteristics, design, and potential as alternative molecules to overcome microbial resistance. Life Sci 2021; 278:119647. [PMID: 34043990 DOI: 10.1016/j.lfs.2021.119647] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 05/08/2021] [Accepted: 05/18/2021] [Indexed: 01/09/2023]
Abstract
Recently, the dramatic emergence of antimicrobial resistance has received attention from World Health Organization. Synthetic antimicrobial peptides (SAMPs) are considered new weapons to fight against infections caused by multi-drug resistant pathogens. Here, the authors provide an overview of the current research on SAMPs. The focus is SAMPs, how to design them, which features must be considered during design, and comparison with natural peptides. This review also includes a discussion about the natural AMPs, mechanisms of action and applications as new drugs or even as adjuvants molecules to enhance commercial drugs activity. The advances in chemical synthesis have reduced the cost to produce synthetic peptides open ways to achieve new antimicrobial agents. Therefore, synthetic peptides are new promising molecules to safeguard human and animal health.
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Affiliation(s)
- Patrícia G Lima
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, CEP 60.440-554 Fortaleza, Ceará, Brazil
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, CEP 60.440-554 Fortaleza, Ceará, Brazil
| | - Jackson L Amaral
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, CEP 60.440-554 Fortaleza, Ceará, Brazil
| | - Cleverson D T Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, CEP 60.440-554 Fortaleza, Ceará, Brazil
| | - Pedro F N Souza
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, CEP 60.440-554 Fortaleza, Ceará, Brazil.
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203
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Agouram N, El Hadrami EM, Bentama A. 1,2,3-Triazoles as Biomimetics in Peptide Science. Molecules 2021; 26:2937. [PMID: 34069302 PMCID: PMC8156386 DOI: 10.3390/molecules26102937] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 01/10/2023] Open
Abstract
Natural peptides are an important class of chemical mediators, essential for most vital processes. What limits the potential of the use of peptides as drugs is their low bioavailability and enzymatic degradation in vivo. To overcome this limitation, the development of new molecules mimicking peptides is of great importance for the development of new biologically active molecules. Therefore, replacing the amide bond in a peptide with a heterocyclic bioisostere, such as the 1,2,3-triazole ring, can be considered an effective solution for the synthesis of biologically relevant peptidomimetics. These 1,2,3-triazoles may have an interesting biological activity, because they behave as rigid link units, which can mimic the electronic properties of amide bonds and show bioisosteric effects. Additionally, triazole can be used as a linker moiety to link peptides to other functional groups.
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Affiliation(s)
- Naima Agouram
- Laboratory of Applied Organic Chemistry, Faculty of Science and Technology, Sidi Mohammed Ben Abdellah University, Immouzer Road, Fez 30050, Morocco; (E.M.E.H.); (A.B.)
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