1
|
Gutierrez CDO, Almeida LHDO, Sardi JDCO, Almeida CV, de Oliveira CFR, Marchetto R, Crusca E, Buccini DF, Franco OL, Cardoso MH, Macedo MLR. Boosting the antibacterial potential of a linear encrypted peptide in a Kunitz-type inhibitor (ApTI) through physicochemical-guided approaches. Biochimie 2024:S0300-9084(24)00168-8. [PMID: 39029576 DOI: 10.1016/j.biochi.2024.07.009] [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: 04/09/2024] [Revised: 06/26/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
Bacterial resistance has become a serious public health problem in recent years, thus encouraging the search for new antimicrobial agents. Here, we report an antimicrobial peptide (AMP), called PEPAD, which was designed based on an encrypted peptide from a Kunitz-type plant peptidase inhibitor. PEPAD was capable of rapidly inhibiting and eliminating numerous bacterial species at micromolar concentrations (from 4μM to 10 μM), with direct membrane activity. It was also observed that the peptide can act synergistically with ciprofloxacin and showed no toxicity in the G. mellonella in vivo assay. Circular dichroism assays revealed that the peptide's secondary structure adopts different scaffolds depending on the environment in which it is inserted. In lipids mimicking bacterial cell membranes, PEPAD adopts a more stable α-helical structure, which is consistent with its membrane-associated mechanism of action. When in contact with lipids mimicking mammalian cells, PEPAD adopts a disordered structure, losing its function and suggesting cellular selectivity. Therefore, these findings make PEPAD a promising candidate for future antimicrobial therapies with low toxicity to the host.
Collapse
Affiliation(s)
- Camila de Oliveira Gutierrez
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil
| | - Luís Henrique de Oliveira Almeida
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil
| | - Janaina de Cássia Orlandi Sardi
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil
| | - Claudiane Vilharroel Almeida
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil
| | - Caio Fernando Ramalho de Oliveira
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil
| | - Reinaldo Marchetto
- Universidade Estadual Paulista (UNESP), Instituto de Química, Araraquara, São Paulo, Brazil
| | - Edson Crusca
- Universidade Estadual Paulista (UNESP), Instituto de Química, Araraquara, São Paulo, Brazil
| | | | - Octavio Luiz Franco
- S-Inova Biotech, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Marlon Henrique Cardoso
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil; S-Inova Biotech, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Maria Lígia Rodrigues Macedo
- Laboratório de Purificação de Proteínas e Suas Funções Biológicas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande, MS, Brazil.
| |
Collapse
|
2
|
Parisi MG, Ozón B, Vera González SM, García-Pardo J, Obregón WD. Plant Protease Inhibitors as Emerging Antimicrobial Peptide Agents: A Comprehensive Review. Pharmaceutics 2024; 16:582. [PMID: 38794245 PMCID: PMC11125377 DOI: 10.3390/pharmaceutics16050582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
Antimicrobial peptides (AMPs) are important mediator molecules of the innate defense mechanisms in a wide range of living organisms, including bacteria, mammals, and plants. Among them, peptide protease inhibitors (PPIs) from plants play a central role in their defense mechanisms by directly attacking pathogens or by modulating the plant's defense response. The growing prevalence of microbial resistance to currently available antibiotics has intensified the interest concerning these molecules as novel antimicrobial agents. In this scenario, PPIs isolated from a variety of plants have shown potential in inhibiting the growth of pathogenic bacteria, protozoans, and fungal strains, either by interfering with essential biochemical or physiological processes or by altering the permeability of biological membranes of invading organisms. Moreover, these molecules are active inhibitors of a range of proteases, including aspartic, serine, and cysteine types, with some showing particular efficacy as trypsin and chymotrypsin inhibitors. In this review, we provide a comprehensive analysis of the potential of plant-derived PPIs as novel antimicrobial molecules, highlighting their broad-spectrum antimicrobial efficacy, specificity, and minimal toxicity. These natural compounds exhibit diverse mechanisms of action and often multifunctionality, positioning them as promising molecular scaffolds for developing new therapeutic antibacterial agents.
Collapse
Affiliation(s)
- Mónica G. Parisi
- Instituto de Ecología y Desarrollo Sustentable (INEDES, CONICET-UNLu) and Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Avenida Constitución, Luján B6700, Buenos Aires, Argentina;
| | - Brenda Ozón
- Centro de Investigación de Proteínas Vegetales (CIProVe) and Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115 s/N, La Plata B1900, Buenos Aires, Argentina; (B.O.); (S.M.V.G.)
| | - Sofía M. Vera González
- Centro de Investigación de Proteínas Vegetales (CIProVe) and Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115 s/N, La Plata B1900, Buenos Aires, Argentina; (B.O.); (S.M.V.G.)
| | - Javier García-Pardo
- Institut de Biotecnologia i de Biomedicina (IBB) and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Walter David Obregón
- Centro de Investigación de Proteínas Vegetales (CIProVe) and Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115 s/N, La Plata B1900, Buenos Aires, Argentina; (B.O.); (S.M.V.G.)
| |
Collapse
|
3
|
Almeida CV, de Oliveira CFR, Almeida LHDO, Ramalho SR, Gutierrez CDO, Sardi JDCO, Franco OL, Cardoso MH, Macedo MLR. Computer-made peptide RQ18 acts as a dual antifungal and antibiofilm peptide though membrane-associated mechanisms of action. Arch Biochem Biophys 2024; 753:109884. [PMID: 38218361 DOI: 10.1016/j.abb.2024.109884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/16/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
The spread of fungi resistant to conventional drugs has become a threatening problem. In this context, antimicrobial peptides (AMPs) have been considered as one of the main alternatives for controlling fungal infections. Here, we report the antifungal and antibiofilm activity and some clues about peptide RQ18's mechanism of action against Candida and Cryptococcus. This peptide inhibited yeast growth from 2.5 μM and killed all Candida tropicalis cells within 2 h incubation. Moreover, it showed a synergistic effect with antifungal agent the amphotericin b. RQ18 reduced biofilm formation and promoted C. tropicalis mature biofilms eradication. RQ18's mechanism of action involves fungal cell membrane damage, which was confirmed by the results of RQ18 in the presence of free ergosterol in the medium and fluorescence microscopy by Sytox green. No toxic effects were observed in murine macrophage cell lines and Galleria mellonella larvae, suggesting fungal target selectivity. Therefore, peptide RQ18 represents a promising strategy as a dual antifungal and antibiofilm agent that contributes to infection control without damaging mammalian cells.
Collapse
Affiliation(s)
- Claudiane Vilharroel Almeida
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Caio Fernando Ramalho de Oliveira
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Luís Henrique de Oliveira Almeida
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Suellen Rodrigues Ramalho
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Camila de Oliveira Gutierrez
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Janaina de Cassia Orlandi Sardi
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Octávio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Distrito Federal, Brazil
| | - Marlon Henrique Cardoso
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil; S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Distrito Federal, Brazil
| | - Maria Ligia Rodrigues Macedo
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil.
| |
Collapse
|
4
|
Oliveira GSD, Nascimento AMDS, Luz ABS, Aguiar AJFC, Lima MSR, Matias LLR, Amado IR, Passos TS, Damasceno KSFDSC, Monteiro NDKV, Moreira SMG, Pastrana L, Morais AHDA. Prospecting in silico antibacterial activity of a peptide from trypsin inhibitor isolated from tamarind seed. J Enzyme Inhib Med Chem 2023; 38:67-83. [PMID: 36305291 PMCID: PMC9621272 DOI: 10.1080/14756366.2022.2134997] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Bacterial infections have become a global concern, stimulating the growing demand for natural and biologically safe therapeutic agents with antibacterial action. This study was evaluated the genotoxicity of the trypsin inhibitor isolated from tamarind seeds (TTI) and the antibacterial effect of TTI theoric model, number 56, and conformation number 287 (TTIp 56/287) and derived peptides in silico. TTI (0.3 and 0.6 mg.mL−1) did not cause genotoxicity in cells (p > 0.05). In silico, a greater interaction of TTIp 56/287 with the Gram-positive membrane (GP) was observed, with an interaction potential energy (IPE) of −1094.97 kcal.mol−1. In the TTIp 56/287-GP interaction, the Arginine, Threonine (Thr), and Lysine residues presented lower IPE. In molecular dynamics (MD), Peptidotrychyme59 (TVSQTPIDIPIGLPVR) showed an IPE of −518.08 kcal.mol−1 with the membrane of GP bacteria, and the Thr and Arginine residues showed the greater IPE. The results highlight new perspectives on TTI and its derived peptides antibacterial activity.
Collapse
Affiliation(s)
- Gerciane Silva de Oliveira
- Postgraduate Program in Nutrition, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Anna Beatriz Santana Luz
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Ana Júlia Felipe Camelo Aguiar
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Mayara Santa Rosa Lima
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Lídia Leonize Rodrigues Matias
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Thais Souza Passos
- Postgraduate Program in Nutrition, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
- Nutrition Department, University Center of Rio Grande do Norte, Natal, Brazil
| | | | | | - Susana Margarida Gomes Moreira
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
- The Doctoral Program of Northeast Network in Biotechnology (RENORBIO), Natal, Brazil
| | - Lorenzo Pastrana
- International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Ana Heloneida de Araújo Morais
- Postgraduate Program in Nutrition, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
- Postgraduate Program in Biochemistry and Molecular Biology, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, Brazil
- Nutrition Department, University Center of Rio Grande do Norte, Natal, Brazil
| |
Collapse
|
5
|
de Souza Nascimento AM, de Oliveira Segundo VH, Felipe Camelo Aguiar AJ, Piuvezam G, Souza Passos T, Florentino da Silva Chaves Damasceno KSFDS, de Araújo Morais AH. Antibacterial action mechanisms and mode of trypsin inhibitors: a systematic review. J Enzyme Inhib Med Chem 2022; 37:749-759. [PMID: 35168466 PMCID: PMC8856033 DOI: 10.1080/14756366.2022.2039918] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 12/09/2022] Open
Abstract
This systematic review (SR) aimed to gather studies describing the antibacterial action mechanisms and mode of trypsin inhibitors. The review protocol was registered (PROSPERO: CRD42020189069). Original articles resulting from studies in animal models, in bacterial culture, and using cells that describe antibacterial action of trypsin inhibitor-type peptides or proteins were selected in PubMed, Science Direct, Scopus, Web of Science, BVS, and EMBASE. The methodological quality assessment was performed using the PRISMA and OHAT tool. 2382 articles were retrieved, 17 of which were eligible. Four studies demonstrated the action mechanism directly on the bacterial membrane, and the fifth study on endogenous proteases extracted from the bacteria themselves. The antibacterial action mode was presented in the other studies, which can generate bacteriostatic or bactericidal effects without describing the mechanisms. This study generated information to enable new preclinical or clinical studies with molecules contributing to public health.
Collapse
Affiliation(s)
| | | | - Ana Júlia Felipe Camelo Aguiar
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Grasiela Piuvezam
- Postgraduate Program in Public Health, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
- Department of Public Health, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Thaís Souza Passos
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
- Department of Nutrition, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Ana Heloneida de Araújo Morais
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Brazil
- Department of Nutrition, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| |
Collapse
|
6
|
Efficacy of natural antimicrobial peptides versus peptidomimetic analogues: a systematic review. Future Med Chem 2022; 14:1899-1921. [PMID: 36421051 DOI: 10.4155/fmc-2022-0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: This systematic review was carried out to determine whether synthetic peptidomimetics exhibit significant advantages over antimicrobial peptides in terms of in vitro potency. Structural features - molecular weight, charge and length - were examined for correlations with activity. Methods: Original research articles reporting minimum inhibitory concentration values against Escherichia coli, indexed until 31 December 2020, were searched in PubMed/ScienceDirect/Google Scholar and evaluated using mixed-effects models. Results: In vitro antimicrobial activity of peptidomimetics resembled that of antimicrobial peptides. Net charge significantly affected minimum inhibitory concentration values (p < 0.001) with a trend of 4.6% decrease for increments in charge by +1. Conclusion: AMPs and antibacterial peptidomimetics exhibit similar potencies, providing an opportunity to exploit the advantageous stability and bioavailability typically associated with peptidomimetics.
Collapse
|
7
|
Ramalho SR, de Cássia Orlandi Sardi J, Júnior EC, Marchetto R, Wender H, Vargas LFP, de Miranda A, Almeida CV, de Oliveira Almeida LH, de Oliveira CFR, Macedo MLR. The synthetic antimicrobial peptide IKR18 displays anti-infectious properties in Galleria mellonella in vivo model. Biochim Biophys Acta Gen Subj 2022; 1866:130244. [PMID: 36162730 DOI: 10.1016/j.bbagen.2022.130244] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/14/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022]
Abstract
Antimicrobial peptides (AMPs) are promising tools for developing new antibiotics. We described the design of IKR18, an AMP designed with the aid of computational tools. IKR18 showed antimicrobial activity against Gram-negative and Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). CD studies revealed that IKR18 assumes an alpha-helical structure in the membrane-mimetic environment. The action mechanism IKR18 involves damage to the bacteria membrane, as demonstrated by Sytox green uptake. Furthermore, IKR18 displayed synergic and additive effects in combination with antibiotics ciprofloxacin and vancomycin. The peptide showed anti-biofilm activity in concentration and efficiency compared with commercial antibiotics, involving the direct death of bacteria, as confirmed by scanning electron microscopy. The anti-infective activity of IKR18 was demonstrated in the Galleria mellonella model infected with S. aureus, MRSA, and Acinetobacter baumannii. The novel bioinspired peptide, IKR18, proved to be effective in the control of bacterial infection, opening opportunities for the development of further assays, including preclinical models.
Collapse
Affiliation(s)
- Suellen Rodrigues Ramalho
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Janaina de Cássia Orlandi Sardi
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Edson Crusca Júnior
- Instituto de Química, Departamento de Bioquímica e Química Tecnológica, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Reinaldo Marchetto
- Instituto de Química, Departamento de Bioquímica e Química Tecnológica, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Heberton Wender
- Laboratório de Nanomateriais e Nanotecnologia Aplicada (LNNA), Instituto de Física, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Luiz Felipe Plaça Vargas
- Laboratório de Nanomateriais e Nanotecnologia Aplicada (LNNA), Instituto de Física, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Antonio de Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Claudiane Vilharroel Almeida
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Luís Henrique de Oliveira Almeida
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Caio Fernando Ramalho de Oliveira
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Maria Lígia Rodrigues Macedo
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, FACFAN, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil.
| |
Collapse
|
8
|
Lima LS, Ramalho SR, Sandim GC, Parisotto EB, Orlandi Sardi JDC, Rodrigues Macedo ML. Prevention of hospital pathogen biofilm formation by antimicrobial peptide KWI18. Microb Pathog 2022; 172:105791. [PMID: 36150557 DOI: 10.1016/j.micpath.2022.105791] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 09/11/2022] [Accepted: 09/14/2022] [Indexed: 10/31/2022]
Abstract
This study investigated the antimicrobial and antibiofilm activity of KWI18, a new synthetic peptide. KWI18 was tested against planktonic cells and Pseudomonas aeruginosa and Candida parapsilosis biofilms. Time-kill and synergism assays were performed. Sorbitol, ergosterol, lipid peroxidation, and protein oxidation assays were used to gain insight into the mechanism of action of the peptide. Toxicity was evaluated against erythrocytes and Galleria mellonella. KWI18 showed antimicrobial activity, with minimum inhibitory concentration (MIC) values ranging from 0.5 to 10 μM. KWI18 at 10 × MIC reduced P. aeruginosa and C. parapsilosis biofilm formation and cell viability. Time-kill assays revealed that KWI18 inhibited the growth of P. aeruginosa in 4 h and that of C. parapsilosis in 6 h. The mechanism of action was related to ergosterol as well as induction of oxidative damage in cells and biofilms. Furthermore, KWI18 demonstrated low toxicity to erythrocytes and G. mellonella. KWI18 proved to be an effective antibiofilm agent, opening opportunities for the development of new antimicrobials.
Collapse
Affiliation(s)
- Letícia Souza Lima
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Suellen Rodrigues Ramalho
- Programa de Pós-Graduação em Saúde e Desenvolvimento na Região Centro-Oeste, Faculdade de Medicina (FAMED), Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Graziele Custódia Sandim
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Eduardo Benedetti Parisotto
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Janaina de Cássia Orlandi Sardi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil; Programa de Pós-Graduação em Ciências Odontológicas Integradas, Universidade de Cuiabá, Cuiabá, Mato Grosso, Brazil
| | - Maria Lígia Rodrigues Macedo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil.
| |
Collapse
|
9
|
A new bioinspired peptide on defensin from C. annuum fruits: Antimicrobial activity, mechanisms of action and therapeutical potential. Biochim Biophys Acta Gen Subj 2022; 1866:130218. [PMID: 35905923 DOI: 10.1016/j.bbagen.2022.130218] [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: 04/26/2022] [Revised: 07/12/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Antimicrobial peptides, natural or synthetic, appear as promising molecules for antimicrobial therapy because of their both broad antimicrobial activity and mechanism of action. Herein, we determine the anti-Candida and antimycobacterial activities, mechanism of action on yeasts, and cytotoxicity on mammalian cells in the presence of the bioinspired peptide CaDef2.1G27-K44. METHODS CaDef2.1G27-K44 was designed to attain the following criteria: high positive net charge; low molecular weight (<3000 Da); Boman index ≤2.5; and total hydrophobic ratio ≥ 40%. The mechanism of action was studied by growth inhibition, plasma membrane permeabilization, ROS induction, mitochondrial functionality, and metacaspase activity assays. The cytotoxicity on macrophages, monocytes, and erythrocytes were also determined. RESULTS CaDef2.1G27-K44 showed inhibitory activity against Candida spp. with MIC100 values ranging from 25 to 50 μM and the standard and clinical isolate of Mycobacterium tuberculosis with MIC50 of 33.2 and 55.4 μM, respectively. We demonstrate that CaDef2.1G27-K44 is active against yeasts at different salt concentrations, induced morphological alterations, caused membrane permeabilization, increased ROS, causes loss of mitochondrial functionality, and activation of metacaspases. CaDef2.1G27-K44 has low cytotoxicity against mammalian cells. CONCLUSIONS The results obtained showed that CaDef2.1G27-K44 has great antimicrobial activity against Candida spp. and M. tuberculosis with low toxicity to host cells. For Candida spp., the treatment with CaDef2.1G27-K44 induces a process of regulated cell death with apoptosis-like features. GENERAL SIGNIFICANCE We show a new AMP bioinspired with physicochemical characteristics important for selectivity and antimicrobial activity, which is a promising candidate for drug development, mainly to control Candida infections.
Collapse
|
10
|
de Souza CM, da Silva ÁP, Júnior NGO, Martínez OF, Franco OL. Peptides as a therapeutic strategy against Klebsiella pneumoniae. Trends Pharmacol Sci 2022; 43:335-348. [DOI: 10.1016/j.tips.2021.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/20/2021] [Accepted: 12/30/2021] [Indexed: 12/26/2022]
|
11
|
Aguieiras MCL, Resende LM, Souza TAM, Nagano CS, Chaves RP, Taveira GB, Carvalho AO, Rodrigues R, Gomes VM, Mello ÉO. Potent Anti-Candida Fraction Isolated from Capsicum chinense Fruits Contains an Antimicrobial Peptide That is Similar to Plant Defensin and is Able to Inhibit the Activity of Different α-Amylase Enzymes. Probiotics Antimicrob Proteins 2021; 13:862-872. [PMID: 33454869 DOI: 10.1007/s12602-020-09739-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2020] [Indexed: 10/22/2022]
Abstract
Antimicrobial peptides (AMPs) are molecules present in several life forms, possess broad-spectrum of inhibitory activity against pathogenic microorganisms, and are a promising alternative to combat the multidrug resistant pathogens. The aim of this work was to identify and characterize AMPs from Capsicum chinense fruits and to evaluate their inhibitory activities against yeasts of the genus Candida and α-amylases. Initially, after protein extraction from fruits, the extract was submitted to anion exchange chromatography resulting two fractions. Fraction D1 was further fractionated by molecular exclusion chromatography, and three fractions were obtained. These fractions showed low molecular mass peptides, and in fraction F3, only two protein bands of approximately 6.5 kDa were observed. Through mass spectrometry, we identified that the lowest molecular mass protein band of fraction F3 showed similarity with AMPs from plant defensin family. We named this peptide CcDef3 (Capsicum chinense defensin 3). The antifungal activity of these fractions was analyzed against yeasts of the genus Candida. At 200 μg/mL, fraction F1 inhibited the growth of C. tropicalis by 26%, fraction F2 inhibited 35% of the growth of C. buinensis, and fraction F3 inhibited all tested yeasts, exhibiting greater inhibition activity on the growth of the yeast C. albicans (86%) followed by C. buinensis (69%) and C. tropicalis (21%). Fractions F1 and F2 promoted membrane permeabilization of all tested yeasts and increased the endogenous induction of reactive oxygen species (ROS) in C. buinensis and C. tropicalis, respectively. We also observed that fraction F3 at a concentration of 50 µg/mL inhibited the α-amylase activities of Tenebrio molitor larvae by 96% and human salivary by 100%. Thus, our results show that fraction F3, which contains CcDef3, is a very promising protein fraction because it has antifungal potential and is able to inhibit the activity of different α-amylase enzymes.
Collapse
Affiliation(s)
- Mariana C L Aguieiras
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil
| | - Larissa M Resende
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil
| | - Thaynã A M Souza
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil
| | - Celso S Nagano
- Laboratório de Bioquímica Marinha, Departamento de Engenharia de Pesca, Universidade Federal Do Ceará, Fortaleza, CE, Brazil
| | - Renata P Chaves
- Laboratório de Bioquímica Marinha, Departamento de Engenharia de Pesca, Universidade Federal Do Ceará, Fortaleza, CE, Brazil
| | - Gabriel B Taveira
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil
| | - André O Carvalho
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil
| | - Rosana Rodrigues
- Laboratório de Melhoramento E Genética Vegetal, Centro de Ciências E Tecnologias Agropecuárias, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil
| | - Valdirene M Gomes
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil.
| | - Érica O Mello
- Laboratório de Fisiologia E Bioquímica de Microrganismos, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes, RJ, Brazil.
| |
Collapse
|