51
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Nanostructured polysaccharide-based carriers for antimicrobial peptide delivery. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2016. [DOI: 10.1007/s40005-016-0289-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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52
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Sarkar P, Bhunia AK, Yao Y. Emulsion Stabilized with Starch Octenyl Succinate Prolongs Nisin Activity Against
Listeria Monocytogenes
in a Cantaloupe Juice Model. J Food Sci 2016; 81:M2982-M2987. [PMID: 27861862 DOI: 10.1111/1750-3841.13550] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/19/2016] [Accepted: 10/08/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Preetam Sarkar
- Dept. of Food Science Purdue Univ 745 Agricultural Mall Drive West Lafayette IN 47907 U.S.A
| | - Arun K. Bhunia
- Dept. of Food Science Purdue Univ 745 Agricultural Mall Drive West Lafayette IN 47907 U.S.A
| | - Yuan Yao
- Dept. of Food Science Purdue Univ 745 Agricultural Mall Drive West Lafayette IN 47907 U.S.A
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53
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54
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Functionalization of nanostructures for antibiotic improvement: an interdisciplinary approach. Ther Deliv 2016; 7:761-771. [PMID: 27790945 DOI: 10.4155/tde-2016-0047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The resistance of infectious bacteria to current antibiotics is a worldwide problem caused, partially, by the overuse of antimicrobials. The use of nanotechnology as an innovative tool against bacterial infections provides a range of methodologies to redesign old antibiotics for novel and remarkable new strategies. Thus, functionalized antibiotics present structures with improved bioavailability, low toxicity and specificity to bacterial membrane. In this context, this review will describe the use of nanotechnology as an innovative tool to functionalize antibiotics. In addition, the importance of the interdisciplinary context to understand, develop and apply these systems as an innovative tool for drug development and improvement is discussed.
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55
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Withycombe C, Purdy K, Maddocks S. Micro-management: curbing chronic wound infection. Mol Oral Microbiol 2016; 32:263-274. [DOI: 10.1111/omi.12174] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2016] [Indexed: 01/21/2023]
Affiliation(s)
- C. Withycombe
- Department of Biomedical Sciences; Cardiff School of Health Sciences; Cardiff Metropolitan University; Cardiff UK
| | - K.J. Purdy
- School of Life Sciences; University of Warwick; Coventry UK
| | - S.E. Maddocks
- Department of Biomedical Sciences; Cardiff School of Health Sciences; Cardiff Metropolitan University; Cardiff UK
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56
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Fahim HA, Khairalla AS, El-Gendy AO. Nanotechnology: A Valuable Strategy to Improve Bacteriocin Formulations. Front Microbiol 2016; 7:1385. [PMID: 27695440 PMCID: PMC5026012 DOI: 10.3389/fmicb.2016.01385] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 08/22/2016] [Indexed: 02/01/2023] Open
Abstract
Bacteriocins are proteinaceous antibacterial compounds, produced by diverse bacteria, which have been successfully used as: (i) food biopreservative; (ii) anti-biofilm agents; and (iii) additives or alternatives to the currently existing antibiotics, to minimize the risk of emergence of resistant strains. However, there are several limitations that challenge the use of bacteriocins as biopreservatives/antibacterial agents. One of the most promising avenues to overcome these limitations is the use of nanoformulations. This review highlights the practical difficulties with using bacteriocins to control pathogenic microorganisms, and provides an overview on the role of nanotechnology in improving the antimicrobial activity and the physicochemical properties of these peptides.
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Affiliation(s)
- Hazem A Fahim
- Department of Biotechnology and Life Sciences, Faculty of Post Graduate Studies for Advanced Sciences, Beni-Suef University Beni-Suef, Egypt
| | - Ahmed S Khairalla
- Department of Microbiology and Immunology, Faculty of Pharmacy, Beni-Suef University Beni-Suef, Egypt
| | - Ahmed O El-Gendy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Beni-Suef University Beni-Suef, Egypt
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57
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Sarkar P, Bhunia AK, Yao Y. Impact of starch-based emulsions on the antibacterial efficacies of nisin and thymol in cantaloupe juice. Food Chem 2016; 217:155-162. [PMID: 27664621 DOI: 10.1016/j.foodchem.2016.08.071] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 08/20/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
Abstract
The use of antimicrobial compounds to prevent foodborne pathogens from contaminating fresh-cut produce has received broad attentions; however, the applications of these compounds are hindered by their rapid depletion in foods. To prolong their efficacies, the use of delivery systems is essential. In this study, oil-in-water emulsions formed using starch octenyl succinate (starch-OS) were used to stabilize nisin and thymol in cantaloupe juice-containing fluid. Listeria monocytogenes V7 and Salmonella enterica serovar Typhimurium were used as model pathogens to evaluate the antimicrobial activities of nisin and thymol formulations in cantaloupe juice. The results showed that the emulsions had much greater capability to retain nisin and thymol over the storage and displayed much greater effect to inhibit Listeria and Salmonella than non-emulsion, aqueous formulations. Starch-OS based emulsions not only retained nisin and thymol activities separately, but also exhibited their cooperative antibacterial effects.
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Affiliation(s)
- Preetam Sarkar
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, IN 47907, United States
| | - Arun K Bhunia
- Molecular Food Microbiology Laboratory, Department of Food Science, Purdue University, West Lafayette, IN 47907, United States
| | - Yuan Yao
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, IN 47907, United States.
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58
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Bi L, Yang L, Bhunia AK, Yao Y. Emulsion stabilized with phytoglycogen octenyl succinate prolongs the antimicrobial efficacy of ε-poly-l-lysine against Escherichia coli O157:H7. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.02.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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59
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Sandreschi S, Piras AM, Batoni G, Chiellini F. Perspectives on polymeric nanostructures for the therapeutic application of antimicrobial peptides. Nanomedicine (Lond) 2016; 11:1729-44. [PMID: 27348155 DOI: 10.2217/nnm-2016-0057] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Antimicrobial peptides (AMPs) are a class of promising anti-infective molecules but their therapeutic application is opposed by their poor bioavailability, susceptibility to protease degradation and potential toxicity. The advancement of nanoformulation technologies offers encouraging perspectives for the development of novel therapeutic strategies based on AMPs to treat antibiotic resistant microbial infections. Additionally, the use of polymers endowed per-se with antibacterial properties, stands out as an innovative approach for the development of a new generation of drug delivery systems in which an enhanced antimicrobial action could be obtained by the synergic combination of bioactive polymer matrices and drugs. Herein, the latest AMPs drug delivery research is discussed.
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Affiliation(s)
- Stefania Sandreschi
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Anna Maria Piras
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Giovanna Batoni
- Department of Translational Research & New Technology in Medicine & Surgery, University of Pisa, Via S. Zeno 35-39, 56127 Pisa, Italy
| | - Federica Chiellini
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
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60
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Chen J, Miao M, Campanella O, Jiang B, Jin Z. Biological macromolecule delivery system for improving functional performance of hydrophobic nutraceuticals. Curr Opin Food Sci 2016. [DOI: 10.1016/j.cofs.2016.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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61
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Silva JP, Gonçalves C, Costa C, Sousa J, Silva-Gomes R, Castro AG, Pedrosa J, Appelberg R, Gama FM. Delivery of LLKKK18 loaded into self-assembling hyaluronic acid nanogel for tuberculosis treatment. J Control Release 2016; 235:112-124. [PMID: 27261333 DOI: 10.1016/j.jconrel.2016.05.064] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/24/2016] [Accepted: 05/30/2016] [Indexed: 01/21/2023]
Abstract
Tuberculosis (TB), a disease caused by the human pathogen Mycobacterium tuberculosis, recently joined HIV/AIDS on the top rank of deadliest infectious diseases. Low patient compliance due to the expensive, long-lasting and multi-drug standard therapies often results in treatment failure and emergence of multi-drug resistant strains. In this scope, antimicrobial peptides (AMPs) arise as promising candidates for TB treatment. Here we describe the ability of the exogenous AMP LLKKK18 to efficiently kill mycobacteria. The peptide's potential was boosted by loading into self-assembling Hyaluronic Acid (HA) nanogels. These provide increased stability, reduced cytotoxicity and degradability, while potentiating peptide targeting to main sites of infection. The nanogels were effectively internalized by macrophages and the peptide presence and co-localization with mycobacteria within host cells was confirmed. This resulted in a significant reduction of the mycobacterial load in macrophages infected in vitro with the opportunistic M. avium or the pathogenic M. tuberculosis, an effect accompanied by lowered pro-inflammatory cytokine levels (IL-6 and TNF-α). Remarkably, intra-tracheal administration of peptide-loaded nanogels significantly reduced infection levels in mice infected with M. avium or M. tuberculosis, after just 5 or 10 every other day administrations. Considering the reported low probability of resistance acquisition, these findings suggest a great potential of LLKKK18-loaded nanogels for TB therapeutics.
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Affiliation(s)
- João P Silva
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal.
| | - Carine Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - César Costa
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal
| | - Jeremy Sousa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rita Silva-Gomes
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António G Castro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Pedrosa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui Appelberg
- Department of Immunophysiology, University of Porto, 4050-313 Porto, Portugal
| | - F Miguel Gama
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal.
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62
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One-step synthesis of high-density peptide-conjugated gold nanoparticles with antimicrobial efficacy in a systemic infection model. Biomaterials 2016; 85:99-110. [DOI: 10.1016/j.biomaterials.2016.01.051] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/31/2015] [Accepted: 01/26/2016] [Indexed: 11/20/2022]
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63
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64
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Chauhan K, Sharma R, Dharela R, Chauhan GS, Singhal RK. Chitosan-thiomer stabilized silver nano-composites for antimicrobial and antioxidant applications. RSC Adv 2016. [DOI: 10.1039/c6ra13466a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study involves a microwave assisted, greener synthesis of chitosan thiomer silver nanocomposites via an innocuous thiourea reagent for antimicrobial applications.
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Affiliation(s)
| | | | - Rohini Dharela
- Department of Chemistry
- A.P. Goyal Shimla University
- India
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65
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Engelberth SA, Hempel N, Bergkvist M. Chemically Modified Dendritic Starch: A Novel Nanomaterial for siRNA Delivery. Bioconjug Chem 2015. [PMID: 26218732 DOI: 10.1021/acs.bioconjchem.5b00313] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanostructured starches are naturally derived nanomaterials that can be chemically modified to allow for the introduction of functional groups, enhancing their potential for drug delivery and other biotechnology applications. In this proof of concept study, we investigate chemically modified, enzymatically synthesized glycogen (ESG) nanodendrites as a biodegradable, biocompatible, siRNA delivery system. Commercially available ESG was modified using glycidyltrimethylammonium chloride (GTMA), introducing quaternary ammonium groups via an epoxide ring opening reaction. This cationic ESG (cESG) electrostatically bound siRNA and successfully knocked down protein expression in an in vitro ovarian clear cell carcinoma model. The construct exhibited sustained siRNA delivery for up to 6 days while exhibiting less toxicity than a common liposome-based siRNA delivery reagent, Lipofectamine RNAiMAX. These promising results set the stage for the use of dendritic starch as a cost-effective, easily modifiable nanoscale delivery system for a diverse range of cargo including nucleic acids and therapeutic compounds.
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Affiliation(s)
- Sarah A Engelberth
- †Nanobioscience Constellation, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York 12203, United States
| | - Nadine Hempel
- ‡Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Magnus Bergkvist
- †Nanobioscience Constellation, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York 12203, United States
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66
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Mohseni S, Aghayan M, Ghorani-Azam A, Behdani M, Asoodeh A. Evaluation of antibacterial properties of Barium Zirconate Titanate (BZT) nanoparticle. Braz J Microbiol 2015; 45:1393-9. [PMID: 25763046 PMCID: PMC4323315 DOI: 10.1590/s1517-83822014000400033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 06/06/2014] [Indexed: 12/22/2022] Open
Abstract
So far, the antibacterial activity of some organic and inorganic compounds has been studied. Barium zirconate titanate [Ba(ZrxTi₁-x)O₃] (x = 0.05) nanoparticle is an example of inorganic materials. In vitro studies have provided evidence for the antibacterial activity of this nanoparticle. In the current study, the nano-powder was synthesized by sol-gel method. X-ray diffraction showed that the powder was single-phase and had a perovskite structure at the calcination temperature of 1000 °C. Antibacterial activity of the desired nanoparticle was assessed on two gram-positive (Staphylococcus aureus PTCC1431 and Micrococcus luteus PTCC1625) and two gram-negative (Escherichia coli HP101BA 7601c and clinically isolated Klebsiella pneumoniae) bacteria according to Radial Diffusion Assay (RDA). The results showed that the antibacterial activity of BZT nano-powder on both gram-positive and gram-negative bacteria was acceptable. The minimum inhibitory concentration of this nano-powder was determined. The results showed that MIC values for E. coli, K. pneumoniae, M. luteus and S. aureus were about 2.3 μg/mL, 7.3 μg/mL, 3 μg/mL and 12 μg/mL, respectively. Minimum bactericidal concentration (MBC) was also evaluated and showed that the growth of E. coli, K. pneumoniae, M. luteus and S. aureus could be decreased at 2.3, 14, 3 and 18 μg/mL of BZT. Average log reduction in viable bacteria count in time-kill assay ranged between 6 Log₁₀ cfu/mL to zero after 24 h of incubation with BZT nanoparticle.
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Affiliation(s)
- Simin Mohseni
- Department of molecular biologyAhar branchIslamic Azad UniversityAharIranDepartment of molecular biology, Ahar branch, Islamic Azad University, Ahar, Iran.
| | - Mahdi Aghayan
- Department of Physics and Electro-CeramicFaculty of SciencesFerdowsi University of MashhadMashhadIranDepartment of Physics and Electro-Ceramic, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Adel Ghorani-Azam
- Medical Toxicology Research CenterSchool of MedicineMashhad University of Medical SciencesMashhadIranMedical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Behdani
- Department of Physics and Electro-CeramicFaculty of SciencesFerdowsi University of MashhadMashhadIranDepartment of Physics and Electro-Ceramic, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ahmad Asoodeh
- Department of Chemistry and BiochemistryFaculty of SciencesFerdowsi University of MashhadMashhadIranDepartment of Chemistry and Biochemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
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67
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Chitosan microparticles ionically cross-linked with poly(γ-glutamic acid) as antimicrobial peptides and nitric oxide delivery systems. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2014.11.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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68
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da Costa JP, Cova M, Ferreira R, Vitorino R. Antimicrobial peptides: an alternative for innovative medicines? Appl Microbiol Biotechnol 2015; 99:2023-40. [PMID: 25586583 DOI: 10.1007/s00253-015-6375-x] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 12/26/2014] [Accepted: 12/28/2014] [Indexed: 12/27/2022]
Abstract
Antimicrobial peptides are small molecules with activity against bacteria, yeasts, fungi, viruses, bacteria, and even tumor cells that make these molecules attractive as therapeutic agents. Due to the alarming increase of antimicrobial resistance, interest in alternative antimicrobial agents has led to the exploitation of antimicrobial peptides, both synthetic and from natural sources. Thus, many peptide-based drugs are currently commercially available for the treatment of numerous ailments, such as hepatitis C, myeloma, skin infections, and diabetes. Initial barriers are being increasingly overcome with the development of cost-effective, more stable peptides. Herein, we review the available strategies for their synthesis, bioinformatics tools for the rational design of antimicrobial peptides with enhanced therapeutic indices, hurdles and shortcomings limiting the large-scale production of AMPs, as well as the challenges that the pharmaceutical industry faces on their use as therapeutic agents.
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Affiliation(s)
- João Pinto da Costa
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
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69
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Carmona-Ribeiro AM, de Melo Carrasco LD. Novel formulations for antimicrobial peptides. Int J Mol Sci 2014; 15:18040-83. [PMID: 25302615 PMCID: PMC4227203 DOI: 10.3390/ijms151018040] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 08/30/2014] [Accepted: 09/16/2014] [Indexed: 12/22/2022] Open
Abstract
Peptides in general hold much promise as a major ingredient in novel supramolecular assemblies. They may become essential in vaccine design, antimicrobial chemotherapy, cancer immunotherapy, food preservation, organs transplants, design of novel materials for dentistry, formulations against diabetes and other important strategical applications. This review discusses how novel formulations may improve the therapeutic index of antimicrobial peptides by protecting their activity and improving their bioavailability. The diversity of novel formulations using lipids, liposomes, nanoparticles, polymers, micelles, etc., within the limits of nanotechnology may also provide novel applications going beyond antimicrobial chemotherapy.
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Affiliation(s)
- Ana Maria Carmona-Ribeiro
- Biocolloids Laboratory, Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, 05508-000 São Paulo, SP, Brazil.
| | - Letícia Dias de Melo Carrasco
- Biocolloids Laboratory, Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, 05508-000 São Paulo, SP, Brazil.
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70
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Silva RR, Avelino KYPS, Ribeiro KL, Franco OL, Oliveira MDL, Andrade CAS. Optical and dielectric sensors based on antimicrobial peptides for microorganism diagnosis. Front Microbiol 2014; 5:443. [PMID: 25191319 PMCID: PMC4138613 DOI: 10.3389/fmicb.2014.00443] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 08/04/2014] [Indexed: 12/24/2022] Open
Abstract
Antimicrobial peptides (AMPs) are natural compounds isolated from a wide variety of organisms that include microorganisms, insects, amphibians, plants, and humans. These biomolecules are considered as part of the innate immune system and are known as natural antibiotics, presenting a broad spectrum of activities against bacteria, fungi, and/or viruses. Technological innovations have enabled AMPs to be utilized for the development of novel biodetection devices. Advances in nanotechnology, such as the synthesis of nanocomposites, nanoparticles, and nanotubes have permitted the development of nanostructured platforms with biocompatibility and greater surface areas for the immobilization of biocomponents, arising as additional tools for obtaining more efficient biosensors. Diverse AMPs have been used as biological recognition elements for obtaining biosensors with more specificity and lower detection limits, whose analytical response can be evaluated through electrochemical impedance and fluorescence spectroscopies. AMP-based biosensors have shown potential for applications such as supplementary tools for conventional diagnosis methods of microorganisms. In this review, conventional methods for microorganism diagnosis as well new strategies using AMPs for the development of impedimetric and fluorescent biosensors are highlighted. AMP-based biosensors show promise as methods for diagnosing infections and bacterial contaminations as well as applications in quality control for clinical analyses and microbiological laboratories.
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Affiliation(s)
- Rafael R Silva
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil
| | - Karen Y P S Avelino
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
| | - Kalline L Ribeiro
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil
| | - Octavio L Franco
- Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília Brasília-DF, Brasil
| | - Maria D L Oliveira
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
| | - Cesar A S Andrade
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil ; Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
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71
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Preparation and characterization of agar/silver nanoparticles composite films with antimicrobial activity. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2013.04.002] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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72
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73
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Zou Y, Lee HY, Seo YC, Ahn J. Enhanced Antimicrobial Activity of Nisin-Loaded Liposomal Nanoparticles against Foodborne Pathogens. J Food Sci 2012; 77:M165-70. [DOI: 10.1111/j.1750-3841.2011.02580.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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74
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Santa-Maria M, Scher H, Jeoh T. Microencapsulation of bioactives in cross-linked alginate matrices by spray drying. J Microencapsul 2012; 29:286-95. [DOI: 10.3109/02652048.2011.651494] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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75
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Raman N, Sudharsan S. Phase-assisted synthesis and DNA unpacking evaluation of biologically inspired metallo nanocomplexes using peptide as unique building block. J Colloid Interface Sci 2011; 364:140-7. [DOI: 10.1016/j.jcis.2011.08.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 08/12/2011] [Accepted: 08/13/2011] [Indexed: 11/24/2022]
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76
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Duncan TV. Applications of nanotechnology in food packaging and food safety: barrier materials, antimicrobials and sensors. J Colloid Interface Sci 2011; 363:1-24. [PMID: 21824625 PMCID: PMC7094330 DOI: 10.1016/j.jcis.2011.07.017] [Citation(s) in RCA: 757] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 07/05/2011] [Accepted: 07/06/2011] [Indexed: 12/12/2022]
Abstract
In this article, several applications of nanomaterials in food packaging and food safety are reviewed, including: polymer/clay nanocomposites as high barrier packaging materials, silver nanoparticles as potent antimicrobial agents, and nanosensors and nanomaterial-based assays for the detection of food-relevant analytes (gasses, small organic molecules and food-borne pathogens). In addition to covering the technical aspects of these topics, the current commercial status and understanding of health implications of these technologies are also discussed. These applications were chosen because they do not involve direct addition of nanoparticles to consumed foods, and thus are more likely to be marketed to the public in the short term.
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Bi L, Yang L, Bhunia AK, Yao Y. Carbohydrate nanoparticle-mediated colloidal assembly for prolonged efficacy of bacteriocin against food pathogen. Biotechnol Bioeng 2011; 108:1529-36. [PMID: 21337333 DOI: 10.1002/bit.23099] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 01/23/2011] [Accepted: 02/01/2011] [Indexed: 11/11/2022]
Abstract
The goal of this study was to demonstrate the ability of carbohydrate nanoparticle-stabilized emulsion to prolong the efficacy of bacteriocin against food pathogens. An amphiphilic, negatively charged carbohydrate nanoparticle, phytoglycogen octenyl succinate (PG-OS), was used to form oil-in-water emulsion for delivering bacteriocin nisin against the food pathogen Listeria monocytogenes. Dynamic light scattering test showed that in emulsion all PG-OS nanoparticles were adsorbed at the surface of oil droplets. Zeta-potential analysis indicated an effective adsorption of positively charged nisin molecules at the surface of PG-OS interfacial layer. Nisin depletion model showed that, during 50 days of storage, the anti-listerial activity of nisin-containing PG-OS-stabilized emulsion was substantially greater than that of nisin solution. In contrast, the emulsion stabilized with a neutral, small-molecule surfactant (Tween 20) or negatively charged, hyperbranched carbohydrate polymer (modified starch) was either ineffective or less effective than the nanoparticle-stabilized emulsion to retain nisin activity during storage.
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Affiliation(s)
- Lin Bi
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, 745 Agriculture Mall Drive, West Lafayette, Indiana 47907, USA
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