1
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Stepulane A, Rajasekharan AK, Andersson M. Antibacterial efficacy of antimicrobial peptide-functionalized hydrogel particles combined with vancomycin and oxacillin antibiotics. Int J Pharm 2024; 664:124630. [PMID: 39216651 DOI: 10.1016/j.ijpharm.2024.124630] [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: 04/18/2024] [Revised: 08/13/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024]
Abstract
The rise of antibiotic resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA), requires novel approaches to combat infections. Medical devices like implants and wound dressings are frequently used in conjunction with antibiotics, motivating the development of antibacterial biomaterials capable of exhibiting combined antibacterial effects with conventional antibiotics. This study explores the synergistic antibacterial effects of combining antimicrobial peptide (AMP) functionalized hydrogel particles with conventional antibiotics, vancomycin (VCM) and oxacillin (OXA), against Staphylococcus aureus and MRSA. The AMP employed, RRPRPRPRPWWWW-NH2, has previously demonstrated broad-spectrum activity and enhanced stability when attached to hydrogel substrates. Here, checkerboard assays revealed additive and synergistic interactions between the free AMP and both VCM and OXA against Staphylococcus aureus and MRSA. Notably, the AMP-OXA combination displayed a significant synergistic effect against MRSA, with a 512-fold reduction in OXA's minimum inhibitory concentration (MIC) when combined with free AMP. The observed synergism against MRSA was retained upon covalent AMP immobilization onto the hydrogel particles; however, at a lower rate with a 64-fold reduction in OXA MIC. Despite this, the OXA-AMP hydrogel particle combinations retained considerable synergistic potential against MRSA, a strain resistant to OXA, highlighting the potential of AMP-functionalized materials for enhancing antibiotic efficacy. These findings underscore the importance of developing antimicrobial biomaterials for future medical devices to fight biomaterial-associated infections and reverse antimicrobial resistance.
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Affiliation(s)
- Annija Stepulane
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg SE-412 96, Sweden; Centre for Antibiotic Resistance Research in Gothenburg (CARe), SE-405 30 Gothenburg, Sweden
| | | | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg SE-412 96, Sweden; Amferia AB, AZ BioVentureHub, Mölndal SE-431 83, Sweden; Centre for Antibiotic Resistance Research in Gothenburg (CARe), SE-405 30 Gothenburg, Sweden.
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2
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Wu J, Yan J, Xu S, Zou X, Xu Y, Jin X, Lu X, Gui S. Novel Nano Drug-Loaded Hydrogel Coatings for the Prevention and Treatment of CAUTI. Adv Healthc Mater 2024:e2401745. [PMID: 39180266 DOI: 10.1002/adhm.202401745] [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: 05/11/2024] [Revised: 08/13/2024] [Indexed: 08/26/2024]
Abstract
Catheter-associated urinary tract infection (CAUTI) is a prevalent type of hospital-acquired infection, affecting approximately 15% to 25% of patients with urinary catheters. Long-term use of the catheter can lead to colonization of microorganisms and biofilm formation, and may develop into bacterial CAUTI. However, the frequent replacement of catheters in clinical settings can result in tissue damage, inflammation, ulceration, and additional complications, causing discomfort and pain for patients. In light of these challenges, a novel nanodrug-supported hydrogel coating called NP-AM/FK@OMV-P/H has been developed in this study. Through in vitro experiments, it is confirmed that OMV nano-loaded liquid gel coating has an effective reaction against E.coli HAase and releases antibacterial drugs. This coating has also demonstrated strong inhibition of E.coli and has shown the ability to inhibit the formation of bacterial biofilm. These findings highlight the potential of the OMV nanoparticle gel coating in preventing and treating bacterial infections. Notably, NP-AM/FK@OMV-P/H has exhibited greater efficacy against multidrug-resistant E.coli associated with UTIs compared to coatings containing single antimicrobial peptides or antibiotics. Additionally, it has demonstrated good biosecurity. In conclusion, the NP-AM/FK@OMV-P/H coating holds great potential in providing benefits to patients with CAUTI.
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Affiliation(s)
- Jibin Wu
- Intensive Care Unit, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518031, P. R. China
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Institute of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Jianling Yan
- Intensive Care Unit, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518031, P. R. China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Institute of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Sijia Xu
- Intensive Care Unit, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518031, P. R. China
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Institute of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Xuan Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
| | - Yinghua Xu
- Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products, National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Xiaobao Jin
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Institute of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Xuemei Lu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Institute of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Shuiqing Gui
- Intensive Care Unit, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518031, P. R. China
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3
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Wang Q, Yang J, Xing M, Li B. Antimicrobial Peptide Identified via Machine Learning Presents Both Potent Antibacterial Properties and Low Toxicity toward Human Cells. Microorganisms 2024; 12:1682. [PMID: 39203524 PMCID: PMC11356914 DOI: 10.3390/microorganisms12081682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/05/2024] [Accepted: 08/12/2024] [Indexed: 09/03/2024] Open
Abstract
Preventing infection is a critical clinical challenge; however, the extensive use of antibiotics has resulted in remarkably increased antibiotic resistance. A variety of antibiotic alternatives including antimicrobial peptides (AMPs) have been studied. Unfortunately, like most conventional antibiotics, most current AMPs have shown significantly high toxicity toward the host, and therefore induce compromised host responses that may lead to negative clinical outcomes such as delayed wound healing. In this study, one of the AMPs with a short length of nine amino acids was first identified via machine learning to present potentially low cytotoxicity, and then synthesized and validated in vitro against both bacteria and mammalian cells. It was found that this short AMP presented strong and fast-acting antimicrobial properties against bacteria like Staphylococcus aureus, one of the most common bacteria clinically, and it targeted and depolarized bacterial membranes. This AMP also demonstrated significantly lower (e.g., 30%) toxicity toward mammalian cells like osteoblasts, which are important cells for new bone formation, compared to conventional antibiotics like gentamicin, vancomycin, rifampin, cefazolin, and fusidic acid at short treatment times (e.g., 2 h). In addition, this short AMP demonstrated relatively low toxicity, similar to osteoblasts, toward an epithelial cell line like BEAS-2B cells.
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Affiliation(s)
- Qifei Wang
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV 26506, USA;
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Junlin Yang
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200082, China;
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T2N2, Canada;
| | - Bingyun Li
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV 26506, USA;
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4
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Hernández-Ortiz N, Sánchez-Murcia PA, Gil-Campillo C, Domenech M, Lucena-Agell D, Hortigüela R, Velázquez S, Camarasa MJ, Bustamante N, de Castro S, Menéndez M. Design, synthesis and structure-activity relationship (SAR) studies of an unusual class of non-cationic fatty amine-tripeptide conjugates as novel synthetic antimicrobial agents. Front Pharmacol 2024; 15:1428409. [PMID: 39156106 PMCID: PMC11329928 DOI: 10.3389/fphar.2024.1428409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/01/2024] [Indexed: 08/20/2024] Open
Abstract
Cationic ultrashort lipopeptides (USLPs) are promising antimicrobial candidates to combat multidrug-resistant bacteria. Using DICAMs, a newly synthesized family of tripeptides with net charges from -2 to +1 and a fatty amine conjugated to the C-terminus, we demonstrate that anionic and neutral zwitterionic USLPs can possess potent antimicrobial and membrane-disrupting activities against prevalent human pathogens such as Streptococcus pneumoniae and Streptococcus pyogenes. The strongest antimicrobials completely halt bacterial growth at low micromolar concentrations, reduce bacterial survival by several orders of magnitude, and may kill planktonic cells and biofilms. All of them comprise either an anionic or neutral zwitterionic peptide attached to a long fatty amine (16-18 carbon atoms) and show a preference for anionic lipid membranes enriched in phosphatidylglycerol (PG), which excludes electrostatic interactions as the main driving force for DICAM action. Hence, the hydrophobic contacts provided by the long aliphatic chains of their fatty amines are needed for DICAM's membrane insertion, while negative-charge shielding by salt counterions would reduce electrostatic repulsions. Additionally, we show that other components of the bacterial envelope, including the capsular polysaccharide, can influence the microbicidal activity of DICAMs. Several promising candidates with good-to-tolerable therapeutic ratios are identified as potential agents against S. pneumoniae and S. pyogenes. Structural characteristics that determine the preference for a specific pathogen or decrease DICAM toxicity have also been investigated.
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Affiliation(s)
- Noelia Hernández-Ortiz
- Instituto de Química-Física “Blas Cabrera” (IQF), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Pedro A. Sánchez-Murcia
- Instituto de Química Médica (IQM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Laboratory of Computer-Aided Molecular Design, Division of Medicinal Chemistry, Otto-Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Celia Gil-Campillo
- Instituto de Química-Física “Blas Cabrera” (IQF), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Mirian Domenech
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Departamento Genética, Fisiología y Microbiología, Facultad Ciencias Biológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Daniel Lucena-Agell
- Centro de Investigaciones Biológicas Margarita Salas (CIB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Rafael Hortigüela
- Centro de Investigaciones Biológicas Margarita Salas (CIB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Sonsoles Velázquez
- Instituto de Química Médica (IQM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - María José Camarasa
- Instituto de Química Médica (IQM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Noemí Bustamante
- Instituto de Química-Física “Blas Cabrera” (IQF), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Sonia de Castro
- Instituto de Química Médica (IQM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Margarita Menéndez
- Instituto de Química-Física “Blas Cabrera” (IQF), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
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5
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Liu Y, Cui P, Tan R, Ru S. Rapid Membrane-Penetrating Hybrid Peptides Achieve Efficient Dual Antimicrobial and Antibiofilm Activity through a Triple Bactericidal Mechanism. ACS OMEGA 2024; 9:26133-26148. [PMID: 38911764 PMCID: PMC11191078 DOI: 10.1021/acsomega.4c01577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
Antimicrobial peptides (AMPs) are a type of biomaterial used against multidrug resistant (MDR) bacteria. This study reports the design of a peptide family rich in tryptophan and lysine obtained by optimizing a natural AMP using single factor modification and pheromone hybridization to expedite the penetration and improve the antimicrobial activity of AMPs. S-4, L-4, and P-4 showed α-helical structures, exhibited extremely fast membrane penetration rates in vitro, and could kill MDR bacteria efficiently within 30 min. Intracellular fluorescence localization suggested rapid membrane-penetrating of AMPs within 1 min, making it more difficult for bacteria to develop resistance. Furthermore, they could effectively inhibit and destroy bacterial biofilms with dual antimicrobial and antibiofilm activity. In the treatment of skin infections caused by MDR-Acinetobacter baumannii in vivo , AMPs could effectively alleviate inflammation without toxic side effects. Additionally, the triple antimicrobial damage of AMPs was described in detail. AMPs rapidly penetrate the cell membrane, inducing cell membrane damage, triggering oxidative damage with a storm of reactive oxygen species and leading to bacterial death through leakage of cellular contents by complexing with DNA. The multiple damage is an important means by which AMPs can prevent bacterial resistance adequately.
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Affiliation(s)
| | | | - Rong Tan
- Lab of Environmental Health
and Ecological Engineering, College of Marine Life Science, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- Lab of Environmental Health
and Ecological Engineering, College of Marine Life Science, Ocean University of China, Qingdao 266003, China
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6
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Wang T, Tan P, Tang Q, Zhou C, Ding Y, Xu S, Song M, Fu H, Zhang Y, Zhang X, Bai Y, Sun Z, Ma X. Phage-displayed heptapeptide sequence conjugation significantly improves the specific targeting ability of antimicrobial peptides against Staphylococcus aureus. MLIFE 2024; 3:251-268. [PMID: 38948143 PMCID: PMC11211671 DOI: 10.1002/mlf2.12123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 07/02/2024]
Abstract
Broad-spectrum antibacterial drugs often lack specificity, leading to indiscriminate bactericidal activity, which can disrupt the normal microbial balance of the host flora and cause unnecessary cytotoxicity during systemic administration. In this study, we constructed a specifically targeted antimicrobial peptide against Staphylococcus aureus by introducing a phage-displayed peptide onto a broad-spectrum antimicrobial peptide and explored its structure-function relationship through one-factor modification. SFK2 obtained by screening based on the selectivity index and the targeting index showed specific killing ability against S. aureus. Moreover, SFK2 showed excellent biocompatibility in mice and piglet, and demonstrated significant therapeutic efficacy against S. aureus infection. In conclusion, our screening of phage-derived heptapeptides effectively enhances the specific bactericidal ability of the antimicrobial peptides against S. aureus, providing a theoretical basis for developing targeted antimicrobial peptides.
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Affiliation(s)
- Tao Wang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
- Luoyang Key Laboratory of Animal Genetic and Breeding, College of Animal ScienceHenan University of Science and TechnologyLuoyangChina
| | - Peng Tan
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Qi Tang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Chenlong Zhou
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Yakun Ding
- Key Laboratory of Innovative Utilization of Indigenous Cattle and Sheep Germplasm Resources (Co‐construction by Ministry and Province), Ministry of Agriculture and Rural AffairsZhengzhou UniversityZhengzhouChina
| | - Shenrui Xu
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Mengda Song
- Key Laboratory of Innovative Utilization of Indigenous Cattle and Sheep Germplasm Resources (Co‐construction by Ministry and Province), Ministry of Agriculture and Rural AffairsZhengzhou UniversityZhengzhouChina
| | - Huiyang Fu
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Yucheng Zhang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
| | - Xiaohui Zhang
- Luoyang Key Laboratory of Animal Genetic and Breeding, College of Animal ScienceHenan University of Science and TechnologyLuoyangChina
| | - Yueyu Bai
- Key Laboratory of Innovative Utilization of Indigenous Cattle and Sheep Germplasm Resources (Co‐construction by Ministry and Province), Ministry of Agriculture and Rural AffairsZhengzhou UniversityZhengzhouChina
- Animal Health Supervision in Henan ProvinceZhengzhouChina
| | - Zhihong Sun
- Laboratory for Bio‐Feed and Molecular Nutrition, Department of Animal Science and TechnologySouthwest UniversityChongqingChina
| | - Xi Ma
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina
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7
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Liu A, He M, Liu C, Ye Z, Tan CP, Liu Y, Gong J, Lei J, He Y, Zhu S, Zhao J, Xu YJ, Liu Y. Prevention of Hypercholesterolemia with "Liposomes in Microspheres" Composite Carriers: A Promising Approach for Intestinal-Targeted Oral Delivery of Astaxanthin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6118-6132. [PMID: 38477232 DOI: 10.1021/acs.jafc.3c08697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Cardiovascular diseases are caused by hypercholesterolemia. Astaxanthin (AST) has been reported to exhibit antioxidant and anti-inflammatory properties. However, its bioavailability is poor because of low solubility and instability. In order to improve the bioavailability of AST, we developed an intestinal-responsive composite carrier termed as "liposomes in micropheres" incorporating N-succinyl-chitosan (NSC)-poly(ethylene glycol) (PEG) liposomes that functionalized by neonatal Fc receptors (FcRn) into hydrogels of sodium alginate (SA) and carboxymethyl chitosan (CMCS). In the AST NSC/HSA-PEG liposomes@SA/CMCS microspheres, the AST's encapsulation efficiency (EE) was 96.26% (w/w) and its loading capacity (LC) was 6.47% (w/w). AST NSC/HSA-PEG liposomes had stability in the gastric conditions and achieved long-term release of AST in intestinal conditions. Then, AST NSC/HSA-PEG liposomes@SA/CMCS bind to intestinal epithelial cell targets by the neonatal Fc receptor. In vitro permeation studies show that there was a 4-fold increase of AST NSC/HSA-PEG liposomes@SA/CMCS in AST permeation across the intestinal epithelium. Subsequent in vivo experiments demonstrated that the composite carrier exhibited a remarkable mucoadhesive capacity, allowing for extended intestinal retention of up to 12 h, and it displayed deep penetration through the mucus layer, efficiently entering the intestinal villi epithelial cells, and enhancing the absorption of AST and its bioavailability in vivo. And oral administration of AST NSC/HSA-PEG liposomes@SA/CMCS could effectively prevent hypercholesterolemia caused by a high-fat, high-cholesterol diet (HFHCD). These advancements highlight the potential of NSC/HSA-PEG liposomes@SA/CMCS composite carriers for targeted and oral uptake of hydrophobic bioactives.
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Affiliation(s)
- Aiyang Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Mengxue He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Chunhuan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Zhan Ye
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Chin-Ping Tan
- Department of Food Technology, Faculty of Food Science and Technology, University Putra Malaysia, Selangor 410500, Malaysia
| | - Yanjun Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jiajia Gong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingnan Lei
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yuan He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Shuang Zhu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jialiang Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yong-Jiang Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
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8
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Fu C, Wang Z, Zhou X, Hu B, Li C, Yang P. Protein-based bioactive coatings: from nanoarchitectonics to applications. Chem Soc Rev 2024; 53:1514-1551. [PMID: 38167899 DOI: 10.1039/d3cs00786c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Protein-based bioactive coatings have emerged as a versatile and promising strategy for enhancing the performance and biocompatibility of diverse biomedical materials and devices. Through surface modification, these coatings confer novel biofunctional attributes, rendering the material highly bioactive. Their widespread adoption across various domains in recent years underscores their importance. This review systematically elucidates the behavior of protein-based bioactive coatings in organisms and expounds on their underlying mechanisms. Furthermore, it highlights notable advancements in artificial synthesis methodologies and their functional applications in vitro. A focal point is the delineation of assembly strategies employed in crafting protein-based bioactive coatings, which provides a guide for their expansion and sustained implementation. Finally, the current trends, challenges, and future directions of protein-based bioactive coatings are discussed.
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Affiliation(s)
- Chengyu Fu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Zhengge Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Xingyu Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Bowen Hu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Chen Li
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Eastern HuaLan Avenue, Xinxiang, Henan 453003, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
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9
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Jaśkiewicz M, Neubauer D, Sikora K, Bauer M, Bartoszewska S, Błażewicz I, Marek D, Barańska-Rybak W, Kamysz W. The Study of Antistaphylococcal Potential of Omiganan and Retro-Omiganan Under Flow Conditions. Probiotics Antimicrob Proteins 2024:10.1007/s12602-023-10197-w. [PMID: 38224448 DOI: 10.1007/s12602-023-10197-w] [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] [Accepted: 11/27/2023] [Indexed: 01/16/2024]
Abstract
Staphylococcus aureus is considered one of the leading pathogens responsible for infections in humans and animals. The heterogeneous nature of diseases caused by these bacteria is due to the occurrence of multiple strains, differentiated by several mechanisms of antibiotic resistance and virulence factors. One of these is the ability to form biofilm. Biofilm-associated bacteria exhibit a different phenotype that protects them from external factors such as the activity of immune system or antimicrobial substances. Moreover, it has been shown that the majority of persistent and recurrent infections are associated with the presence of the biofilm. Omiganan, an analog of indolicidin - antimicrobial peptide (AMP) derived from bovine neutrophil granules, was found to exhibit high antistaphylococcal and antibiofilm potential. Furthermore, its analog with a reversed sequence (retro-omiganan) was found to display enhanced activity against a variety of pathogens. Based on experience of our group, we found out that counterion exchange can improve the antistaphylococcal activity of AMPs. The aim of this study was to investigate the activity of both compounds against S. aureus biofilm under flow conditions. The advantage of this approach was that it offered the opportunity to form and characterize the biofilm under more controlled conditions. To do this, unique flow cells made of polydimethylsiloxane (PDMS) were developed. The activity against pre-formed biofilm as well as AMPs-treated bacteria was measured. Also, the incorporation of omiganan and retro-omiganan into the channels was conducted to learn whether or not it would inhibit the development of biofilm. The results of the microbiological tests ultimately confirmed the high potential of the omiganan and its retro-analog as well as the importance of counterion exchange in terms of antimicrobial examination. We found out that retro-omiganan trifluoroacetate had the highest biofilm inhibitory properties, however, acetates of both compounds exhibited the highest activity against planktonic and biofilm cultures. Moreover, the developed methodology of investigation under flow conditions allows the implementation of the studies under flow conditions to other compounds.
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Affiliation(s)
- Maciej Jaśkiewicz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland.
- International Research Agenda 3P-Medicine Laboratory, Medical University of Gdańsk, Building No. 5, Dębinki 7, 80-211, Gdańsk, Poland.
| | - Damian Neubauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland.
| | - Karol Sikora
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland.
| | - Marta Bauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Sylwia Bartoszewska
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Izabela Błażewicz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Mariana Smoluchowskiego 17, 80-214, Gdańsk, Poland
| | - Dariusz Marek
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Wioletta Barańska-Rybak
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Mariana Smoluchowskiego 17, 80-214, Gdańsk, Poland
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
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10
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Wang S, Ma C, Long J, Cheng P, Zhang Y, Peng L, Fu L, Yu Y, Xu D, Zhang S, Qiu J, He Y, Yang H, Chen H. Impact of CRAMP-34 on Pseudomonas aeruginosa biofilms and extracellular metabolites. Front Cell Infect Microbiol 2023; 13:1295311. [PMID: 38162583 PMCID: PMC10757720 DOI: 10.3389/fcimb.2023.1295311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024] Open
Abstract
Biofilm is a structured community of bacteria encased within a self-produced extracellular matrix. When bacteria form biofilms, they undergo a phenotypic shift that enhances their resistance to antimicrobial agents. Consequently, inducing the transition of biofilm bacteria to the planktonic state may offer a viable approach for addressing infections associated with biofilms. Our previous study has shown that the mouse antimicrobial peptide CRAMP-34 can disperse Pseudomonas aeruginosa (P. aeruginosa) biofilm, and the potential mechanism of CRAMP-34 eradicate P. aeruginosa biofilms was also investigated by combined omics. However, changes in bacterial extracellular metabolism have not been identified. To further explore the mechanism by which CRAMP-34 disperses biofilm, this study analyzed its effects on the extracellular metabolites of biofilm cells via metabolomics. The results demonstrated that a total of 258 significantly different metabolites were detected in the untargeted metabolomics, of which 73 were downregulated and 185 were upregulated. Pathway enrichment analysis of differential metabolites revealed that metabolic pathways are mainly related to the biosynthesis and metabolism of amino acids, and it also suggested that CRAMP-34 may alter the sensitivity of biofilm bacteria to antibiotics. Subsequently, it was confirmed that the combination of CRAMP-34 with vancomycin and colistin had a synergistic effect on dispersed cells. These results, along with our previous findings, suggest that CRAMP-34 may promote the transition of PAO1 bacteria from the biofilm state to the planktonic state by upregulating the extracellular glutamate and succinate metabolism and eventually leading to the dispersal of biofilm. In addition, increased extracellular metabolites of myoinositol, palmitic acid and oleic acid may enhance the susceptibility of the dispersed bacteria to the antibiotics colistin and vancomycin. CRAMP-34 also delayed the development of bacterial resistance to colistin and ciprofloxacin. These results suggest the promising development of CRAMP-34 in combination with antibiotics as a potential candidate to provide a novel therapeutic approach for the prevention and treatment of biofilm-associated infections.
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Affiliation(s)
- Shiyuan Wang
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Chengjun Ma
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Jinying Long
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Peng Cheng
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
| | - Yang Zhang
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Lianci Peng
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Lizhi Fu
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Yuandi Yu
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Dengfeng Xu
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Suhui Zhang
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Jinjie Qiu
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Institute of Veterinary Medicine Academy of Animal Sciences, Chongqing, China
| | - Yuzhang He
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Hongzao Yang
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Hongwei Chen
- College of Veterinary Medicine, Southwest University, Chongqing, China
- Collaborative Innovation Institute National Center of Technology Innovation for Pigs, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
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11
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Elshaer S, Shaaban MI. Antibiofilm activity of biosynthesized silver and copper nanoparticles using Streptomyces S29. AMB Express 2023; 13:139. [PMID: 38055099 DOI: 10.1186/s13568-023-01647-3] [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: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/07/2023] Open
Abstract
Microbial resistance and biofilm formation have been considered as the main problems associated with microbial resistance. Several antimicrobial agents cannot penetrate biofilm layers and cannot eradicate microbial infection. Therefore, the aim of this study is the biological synthesis of silver and copper nanoparticles to assess their activities on bacterial attachment and on the viability of dormant cells within the biofilm matrix. Ag-NPs and Cu-NPs were biosynthesized using Streptomyces isolate S29. The biologically synthesized Ag-NPs and Cu-NPs exhibited brown and blue colors and were detected by UV/Vis spectrophotometry at 476 and 594 nm, respectively. The Ag-NPs showed an average size of 10-20 nm as indicated by TEM, and 25-35 nm for Cu-NPs. Both Ag-NPs and Cu-NPs were monodispersed with a polydispersity index of 0.1-0.546 and zeta potential were - 29.7, and - 33.7 mv, respectively. The biologically synthesized Ag-NPs and Cu-NPs significantly eliminated bacterial attachment and decreased the viable cells in the biofilm matrix as detected by using crystal violet and tri-phenyl tetrazolium chloride assays. Furthermore, Ag-NPs and Cu-NPs significantly eradicated mature biofilms developed by various Gram-negative pathogens, including A. baumannii, K. pneumoniae and P. aeruginosa standard strains and clinical isolates. Data were also confirmed at the molecular level with prominent elimination of biofilm gene expression carO, bssS and pelA in A. baumannii, K. pneumoniae and P. aeruginosa, respectively compared to untreated cells under the same conditions. As indicated, Ag-NPs and Cu-NPs could be used as adjuvant therapy in eradication of antibiotic resistance and biofilm matrix associated with Gram-negative bacterial infection.
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Affiliation(s)
- Soha Elshaer
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Mona I Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
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12
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Mechesso AF, Su Y, Xie J, Wang G. Enhanced Antimicrobial Screening Sensitivity Enabled the Identification of an Ultrashort Peptide KR-8 for Engineering of LL-37mini to Combat Drug-Resistant Pathogens. ACS Infect Dis 2023; 9:2215-2225. [PMID: 37812567 DOI: 10.1021/acsinfecdis.3c00293] [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] [Indexed: 10/11/2023]
Abstract
Identification of novel antibiotics is of top importance because of the threat of antibiotic-resistant pathogens. Antimicrobial screening in Mueller-Hinton broth is frequently the first step in antimicrobial discovery. Although widely utilized, this medium is not ideal as it could mask activity of candidates such as human cathelicidin LL-37 against methicillin-resistant Staphylococcus aureus (MRSA). This study identified a sensitive medium where LL-37 displayed excellent activity against numerous pathogens, including MRSA. Our screen of ultrashort overlapping LL-37 peptides in this medium led to the identification of KR-8, four residues shorter than KR-12. Hence, our screen condition may increase positive compound hits during antimicrobial screening. KR-8 provided an appealing template for us to design LL-37mini, which was potent against MRSA, Escherichia coli, and Pseudomonas aeruginosa but not toxic to mammalian cells. LL-37mini also inhibited bacterial attachment and biofilm formation and disrupted preformed biofilms in vitro and killed MRSA in murine wound biofilms in vivo. Consistent with membrane targeting, MRSA failed to develop resistance to LL-37mini in a multiple-passage experiment. Because LL-37mini can be made cost effectively, it can be developed into new antibiofilm and antimicrobial agents.
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Affiliation(s)
- Abraham Fikru Mechesso
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, Nebraska 68198-5900, United States
| | - Yajuan Su
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Guangshun Wang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, Nebraska 68198-5900, United States
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13
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Wang G. The antimicrobial peptide database is 20 years old: Recent developments and future directions. Protein Sci 2023; 32:e4778. [PMID: 37695921 PMCID: PMC10535814 DOI: 10.1002/pro.4778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/13/2023]
Abstract
In 2023, the Antimicrobial Peptide Database (currently available at https://aps.unmc.edu) is 20-years-old. The timeline for the APD expansion in peptide entries, classification methods, search functions, post-translational modifications, binding targets, and mechanisms of action of antimicrobial peptides (AMPs) has been summarized in our previous Protein Science paper. This article highlights new database additions and findings. To facilitate antimicrobial development to combat drug-resistant pathogens, the APD has been re-annotating the data for antibacterial activity (active, inactive, and uncertain), toxicity (hemolytic and nonhemolytic AMPs), and salt tolerance (salt sensitive and insensitive). Comparison of the respective desired and undesired AMP groups produces new knowledge for peptide design. Our unification of AMPs from the six life kingdoms into "natural AMPs" enabled the first comparison with globular or transmembrane proteins. Due to the dominance of amphipathic helical and disulfide-linked peptides, cysteine, glycine, and lysine in natural AMPs are much more abundant than those in globular proteins. To include peptides predicted by machine learning, a new "predicted" group has been created. Remarkably, the averaged amino acid composition of predicted peptides is located between the lower bound of natural AMPs and the upper bound of synthetic peptides. Synthetic peptides in the current APD, with the highest cationic and hydrophobic amino acid percentages, are mostly designed with varying degrees of optimization. Hence, natural AMPs accumulated in the APD over 20 years have laid the foundation for machine learning prediction. We discuss future directions for peptide discovery. It is anticipated that the APD will continue to play a role in research and education.
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Affiliation(s)
- Guangshun Wang
- Department of Pathology and Microbiology, College of MedicineUniversity of Nebraska Medical CenterOmahaNebraskaUSA
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14
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Vilarrasa J, Àlvarez G, Soler-Ollé A, Gil J, Nart J, Blanc V. Bacterial Adhesion of TESPSA and Citric Acid on Different Titanium Surfaces Substrate Roughness: An In Vitro Study with a Multispecies Oral Biofilm Model. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4592. [PMID: 37444905 DOI: 10.3390/ma16134592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/11/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023]
Abstract
This in vitro study analyzed the influence of substrate roughness on biofilm adhesion and cellular viability over triethoxysilylpropyl succinic anhydride silane (TESPSA)- and citric acid (CA)-coated surfaces at 12 and 24 h, respectively. A multispecies biofilm composed of S. oralis, A. naslundii, V. parvula, F. nucleatum, P. intermedia, P. gingivalis, P. endodontalis and F. alocis was developed over titanium discs grouped depending on their roughness (low, medium, high) and antibacterial coating (low-TESPSA, medium-TESPSA, high-TESPSA, and CA). The biofilm was quantified by means of quantitative polymerase chain reaction (PCR) and viability PCR and assessed through confocal laser scanning microscope (CLSM). Quantitative PCR revealed no significant differences in bacterial adhesion and biofilm mortality. CA was the surface with the lowest bacterial counts and highest mortality at 12 and 24 h, respectively, while high harbored the highest amount of biofilm at 24 h. By CLSM, CA presented significant amounts of dead cells compared to medium-TESPSA and high-TESPSA. A significantly greater volume of dead cells was found at 12 h in low-TESPSA compared to medium-TESPSA, while CA also presented significant amounts of dead cells compared to medium-TESPSA and high-TESPSA. With regard to the live/dead ratio, low-TESPSA presented a significantly higher ratio at 12 h compared to medium-TESPSA and high-TESPSA. Similarly, CA exhibited a significantly higher live/dead ratio compared to medium-TESPSA and high-TESPSA at 12 h. This multispecies in vitro biofilm did not evidence clear antiadhesive and bactericidal differences between surfaces, although a tendency to reduce adhesion and increase antibacterial effect was observed in the low-TESPSA and CA.
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Affiliation(s)
- Javi Vilarrasa
- Department of Periodontology, Universitat Internacional de Catalunya, 08195 Barcelona, Spain
| | - Gerard Àlvarez
- Department of Microbiology, DENTAID Research Center, 08290 Cerdanyola del Vallès, Spain
| | - Agnès Soler-Ollé
- Department of Microbiology, DENTAID Research Center, 08290 Cerdanyola del Vallès, Spain
| | - Javier Gil
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallés, Spain
| | - José Nart
- Department of Periodontology, Universitat Internacional de Catalunya, 08195 Barcelona, Spain
| | - Vanessa Blanc
- Department of Microbiology, DENTAID Research Center, 08290 Cerdanyola del Vallès, Spain
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15
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Agüero-Chapin G, Antunes A, Mora JR, Pérez N, Contreras-Torres E, Valdes-Martini JR, Martinez-Rios F, Zambrano CH, Marrero-Ponce Y. Complex Networks Analyses of Antibiofilm Peptides: An Emerging Tool for Next-Generation Antimicrobials' Discovery. Antibiotics (Basel) 2023; 12:antibiotics12040747. [PMID: 37107109 PMCID: PMC10135022 DOI: 10.3390/antibiotics12040747] [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: 03/10/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Microbial biofilms cause several environmental and industrial issues, even affecting human health. Although they have long represented a threat due to their resistance to antibiotics, there are currently no approved antibiofilm agents for clinical treatments. The multi-functionality of antimicrobial peptides (AMPs), including their antibiofilm activity and their potential to target multiple microbes, has motivated the synthesis of AMPs and their relatives for developing antibiofilm agents for clinical purposes. Antibiofilm peptides (ABFPs) have been organized in databases that have allowed the building of prediction tools which have assisted in the discovery/design of new antibiofilm agents. However, the complex network approach has not yet been explored as an assistant tool for this aim. Herein, a kind of similarity network called the half-space proximal network (HSPN) is applied to represent/analyze the chemical space of ABFPs, aiming to identify privileged scaffolds for the development of next-generation antimicrobials that are able to target both planktonic and biofilm microbial forms. Such analyses also considered the metadata associated with the ABFPs, such as origin, other activities, targets, etc., in which the relationships were projected by multilayer networks called metadata networks (METNs). From the complex networks' mining, a reduced but informative set of 66 ABFPs was extracted, representing the original antibiofilm space. This subset contained the most central to atypical ABFPs, some of them having the desired properties for developing next-generation antimicrobials. Therefore, this subset is advisable for assisting the search for/design of both new antibiofilms and antimicrobial agents. The provided ABFP motifs list, discovered within the HSPN communities, is also useful for the same purpose.
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Affiliation(s)
- Guillermin Agüero-Chapin
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Porto, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Agostinho Antunes
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Porto, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - José R Mora
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias e Ingenierías "El Politécnico", Instituto de Simulación Computacional (ISC-USFQ), Diego de Robles y vía Interoceánica, Quito 170157, Pichincha, Ecuador
| | - Noel Pérez
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias e Ingenierías "El Politécnico", Instituto de Simulación Computacional (ISC-USFQ), Diego de Robles y vía Interoceánica, Quito 170157, Pichincha, Ecuador
| | - Ernesto Contreras-Torres
- Universidad San Francisco de Quito (USFQ), Grupo de Medicina Molecular y Traslacional (MeM&T), Colegio de Ciencias de la Salud (COCSA), Escuela de Medicina, Edificio de Especialidades Médicas and Instituto de Simulación Computacional (ISC-USFQ), Diego de Robles y vía Interoceánica, Quito 170157, Pichincha, Ecuador
| | | | - Felix Martinez-Rios
- Facultad de Ingeniería, Universidad Panamericana, Augusto Rodin No. 498, Insurgentes Mixcoac, Benito Juárez, Ciudad de México 03920, Mexico
| | - Cesar H Zambrano
- Universidad San Francisco de Quito (USFQ), Colegio de Ciencias e Ingenierías "El Politécnico", Instituto de Simulación Computacional (ISC-USFQ), Diego de Robles y vía Interoceánica, Quito 170157, Pichincha, Ecuador
| | - Yovani Marrero-Ponce
- Universidad San Francisco de Quito (USFQ), Grupo de Medicina Molecular y Traslacional (MeM&T), Colegio de Ciencias de la Salud (COCSA), Escuela de Medicina, Edificio de Especialidades Médicas and Instituto de Simulación Computacional (ISC-USFQ), Diego de Robles y vía Interoceánica, Quito 170157, Pichincha, Ecuador
- Departamento de Ciencias de la Computación, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico
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16
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Santos MA, Silva FL, Lira BOV, Cardozo Fh JL, Vasconcelos AG, Araujo AR, Murad AM, Garay AV, Freitas SM, Leite JRSA, Bloch C, Ramada MHS, de Oliveira AL, Brand GD. Probing human proteins for short encrypted antimicrobial peptides reveals Hs10, a peptide with selective activity for gram-negative bacteria. Biochim Biophys Acta Gen Subj 2023; 1867:130265. [PMID: 36280021 DOI: 10.1016/j.bbagen.2022.130265] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/04/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Some cationic and amphiphilic α-helical segments of proteins adsorb to prokaryotic membranes when synthesized as individual polypeptide sequences, resulting in broad and potent antimicrobial activity. However, amphiphilicity, a determinant physicochemical property for peptide-membrane interactions, can also be observed in some β-sheets. METHODS The software Kamal was used to scan the human reference proteome for short (7-11 amino acid residues) cationic and amphiphilic protein segments with the characteristic periodicity of β-sheets. Some of the uncovered peptides were chemically synthesized, and antimicrobial assays were conducted. Biophysical techniques were used to probe the molecular interaction of one peptide with phospholipid vesicles, lipopolysaccharides (LPS) and the bacterium Escherichia coli. RESULTS Thousands of compatible segments were found in human proteins, five were synthesized, and three presented antimicrobial activity in the micromolar range. Hs10, a nonapeptide fragment of the Complement C3 protein, could inhibit only the growth of tested Gram-negative microorganisms, presenting also little cytotoxicity to human fibroblasts. Hs10 interacted with LPS while transitioning from an unstructured segment to a β-sheet and increased the hydrodynamic radius of LPS particles. This peptide also promoted morphological alterations in E. coli cells. CONCLUSIONS Data presented herein introduce yet another molecular template to probe proteins in search for encrypted membrane-active segments and demonstrates that, using this approach, short peptides with low cytotoxicity and high selectivity to prokaryotic cells might be obtained. GENERAL SIGNIFICANCE This work widens the biotechnological potential of the human proteome as a source of antimicrobial peptides with application in human health.
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Affiliation(s)
- Michele A Santos
- Laboratório de Ressonância Magnética Nuclear, LRMN, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil; Laboratório de Síntese e Análise de Biomoléculas, LSAB, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil
| | - Fernanda L Silva
- Laboratório de Síntese e Análise de Biomoléculas, LSAB, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil
| | - Bianca O V Lira
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - José L Cardozo Fh
- Laboratório de Espectrometria de Massa, LEM, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
| | - Andreanne G Vasconcelos
- Núcleo de Pesquisa em Morfologia e Imunologia Aplicada, NuPMIA, Faculdade de Medicina, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília, DF, Brazil
| | - Alyne R Araujo
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, Universidade Federal do Piauí, Parnaíba, PI, Brazil
| | - André M Murad
- Laboratório de Espectrometria de Massa, LEM, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
| | - Aisel V Garay
- Laboratório de Biofísica Molecular, Instituto de Biologia, Universidade de Brasília (IB-CEL/UnB), Campus Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Sonia M Freitas
- Laboratório de Biofísica Molecular, Instituto de Biologia, Universidade de Brasília (IB-CEL/UnB), Campus Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - José Roberto S A Leite
- Núcleo de Pesquisa em Morfologia e Imunologia Aplicada, NuPMIA, Faculdade de Medicina, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília, DF, Brazil
| | - Carlos Bloch
- Laboratório de Espectrometria de Massa, LEM, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
| | - Marcelo H S Ramada
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Programa de Pós-Graduação em Gerontologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Aline Lima de Oliveira
- Laboratório de Ressonância Magnética Nuclear, LRMN, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil
| | - Guilherme D Brand
- Laboratório de Síntese e Análise de Biomoléculas, LSAB, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil.
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Wang H, Mulgaonkar N, Mallawarachchi S, Ramasamy M, Padilla CS, Irigoyen S, Coaker G, Mandadi KK, Fernando S. Evaluation of Candidatus Liberibacter Asiaticus Efflux Pump Inhibition by Antimicrobial Peptides. Molecules 2022; 27:molecules27248729. [PMID: 36557860 PMCID: PMC9782701 DOI: 10.3390/molecules27248729] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 12/14/2022] Open
Abstract
Citrus greening, also known as Huanglongbing (HLB), is caused by the unculturable bacterium Candidatus Liberibacter spp. (e.g., CLas), and has caused a devastating decline in citrus production in many areas of the world. As of yet, there are no definitive treatments for controlling the disease. Antimicrobial peptides (AMPs) that have the potential to block secretion-dependent effector proteins at the outer-membrane domains were screened in silico. Predictions of drug-receptor interactions were built using multiple in silico techniques, including molecular docking analysis, molecular dynamics, molecular mechanics generalized Born surface area analysis, and principal component analysis. The efflux pump TolC of the Type 1 secretion system interacted with natural bacteriocin plantaricin JLA-9, blocking the β barrel. The trajectory-based principal component analysis revealed the possible binding mechanism of the peptides. Furthermore, in vitro assays using two closely related culturable surrogates of CLas (Liberibacter crescens and Rhizobium spp.) showed that Plantaricin JLA-9 and two other screened AMPs inhibited bacterial growth and caused mortality. The findings contribute to designing effective therapies to manage plant diseases associated with Candidatus Liberibacter spp.
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Affiliation(s)
- Haoqi Wang
- Biological and Agricultural Engineering Department, Texas A&M University, College Station, TX 77843, USA
| | - Nirmitee Mulgaonkar
- Biological and Agricultural Engineering Department, Texas A&M University, College Station, TX 77843, USA
| | - Samavath Mallawarachchi
- Biological and Agricultural Engineering Department, Texas A&M University, College Station, TX 77843, USA
| | - Manikandan Ramasamy
- Texas A&M AgriLife Research & Extension Center, Texas A&M University System, 2415 E. Highway 83, Weslaco, TX 78596, USA
| | - Carmen S. Padilla
- Texas A&M AgriLife Research & Extension Center, Texas A&M University System, 2415 E. Highway 83, Weslaco, TX 78596, USA
| | - Sonia Irigoyen
- Texas A&M AgriLife Research & Extension Center, Texas A&M University System, 2415 E. Highway 83, Weslaco, TX 78596, USA
| | - Gitta Coaker
- Department of Plant Pathology, University of California, Davis, CA 95616, USA
| | - Kranthi K. Mandadi
- Texas A&M AgriLife Research & Extension Center, Texas A&M University System, 2415 E. Highway 83, Weslaco, TX 78596, USA
- Department of Plant Pathology and Microbiology, Texas A&M University System, 2132 TAMU, College Station, TX 77843, USA
- Institute for Advancing Health through Agriculture, Texas A&M AgriLife, College Station, TX 77843, USA
- Correspondence: (K.K.M.); (S.F.)
| | - Sandun Fernando
- Biological and Agricultural Engineering Department, Texas A&M University, College Station, TX 77843, USA
- Correspondence: (K.K.M.); (S.F.)
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18
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Pseudomonas aeruginosa biofilm dispersion by the mouse antimicrobial peptide CRAMP. Vet Res 2022; 53:80. [PMID: 36209206 PMCID: PMC9548163 DOI: 10.1186/s13567-022-01097-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a known bacterium that produces biofilms and causes severe infection. Furthermore, P. aeruginosa biofilms are extremely difficult to eradicate, leading to the development of chronic and antibiotic-resistant infections. Our previous study showed that a cathelicidin-related antimicrobial peptide (CRAMP) inhibits the formation of P. aeruginosa biofilms and markedly reduces the biomass of preformed biofilms, while the mechanism of eradicating bacterial biofilms remains elusive. Therefore, in this study, the potential mechanism by which CRAMP eradicates P. aeruginosa biofilms was investigated through an integrative analysis of transcriptomic, proteomic, and metabolomic data. The omics data revealed CRAMP functioned against P. aeruginosa biofilms by different pathways, including the Pseudomonas quinolone signal (PQS) system, cyclic dimeric guanosine monophosphate (c-di-GMP) signalling pathway, and synthesis pathways of exopolysaccharides and rhamnolipid. Moreover, a total of 2914 differential transcripts, 785 differential proteins, and 280 differential metabolites were identified. A series of phenotypic validation tests demonstrated that CRAMP reduced the c-di-GMP level with a decrease in exopolysaccharides, especially alginate, in P. aeruginosa PAO1 biofilm cells, improved bacterial flagellar motility, and increased the rhamnolipid content, contributing to the dispersion of biofilms. Our study provides new insight into the development of CRAMP as a potentially effective antibiofilm dispersant.
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19
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Shahraki PZ, Farrokh P. PL‐101‐WK
, a novel tryptophan‐ and lysine‐rich peptide with antimicrobial activity against
Staphylococcus aureus. Pept Sci (Hoboken) 2022. [DOI: 10.1002/pep2.24296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Parisa Farrokh
- School of Biology Damghan University Damghan Iran
- Institute of Biological Sciences Damghan University Damghan Iran
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20
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Bao X, Huang X, Jin X, Hu Q. Bactericidal Anti-Adhesion Potential Integrated Polyoxazoline/Silver Nanoparticle Composite Multilayer Film with pH Responsiveness. Polymers (Basel) 2022; 14:3685. [PMID: 36080760 PMCID: PMC9460790 DOI: 10.3390/polym14173685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 02/07/2023] Open
Abstract
Bacterial infections occur frequently during the implantation of medical devices, and functional coating is one of the effective means to prevent and remove biofilms. In this study, three different hydrophilic polyoxazolines with carboxyl groups (aPOx: PT1, PT2 and PT3) and bactericidal silver nanoparticles (AgNPs) were synthesized successfully, and an aPOx-AgNP multilayer film was prepared by electrostatic layer-by-layer self-assembly. The effect of charge density and assembly solution concentration was explored, and the optimal self-assembly parameters were established (PT2 1 mg/mL and AgNPs 3 mg/mL). The hydrophilicity of the surface can be enhanced to resist protein adhesion if the outermost layer is aPOx, and AgNPs can be loaded to kill bacteria, thereby realizing the bactericidal anti-adhesion potential integration of the aPOx-AgNP multilayer film. In addition, the aPOx-AgNP multilayer film was found to have the characteristic of intelligent and efficient pH-responsive silver release, which is expected to be used as a targeted anti-biofilm surface of implantable medical devices.
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Affiliation(s)
- Xiaojiong Bao
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaofei Huang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaoqiang Jin
- The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Qiaoling Hu
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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21
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Construction strategies and the development trend of antibacterial surfaces. Biointerphases 2022; 17:050801. [DOI: 10.1116/6.0002147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The construction of antibacterial surfaces is an efficient way to respond to the problem of microbial contamination. In this review, we first describe the formation process and characteristics of microbial contamination and the current research status of antibacterial surfaces. Then, the passive antiadhesion, active killing, and combination construction strategies of the antibacterial surface are discussed in detail. Based on different antibacterial mechanisms and existing problems of current antibacterial strategies, we then discuss the future development trends of the next generation of antibacterial surfaces.
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22
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Targeted Modification and Structure-Activity Study of GL-29, an Analogue of the Antimicrobial Peptide Palustrin-2ISb. Antibiotics (Basel) 2022; 11:antibiotics11081048. [PMID: 36009917 PMCID: PMC9405102 DOI: 10.3390/antibiotics11081048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/27/2022] [Accepted: 07/30/2022] [Indexed: 02/01/2023] Open
Abstract
Antimicrobial peptides (AMPs) are considered as promising antimicrobial agents due to their potent bioactivity. Palustrin-2 peptides were previously found to exhibit broad-spectrum antimicrobial activity with low haemolytic activity. Therefore, GL-29 was used as a template for further modification and study. Firstly, the truncated analogue, GL-22, was designed to examine the function of the ‘Rana box’, which was confirmed to have no impact on antimicrobial activity. The results of antimicrobial activity assessment against seven microorganisms demonstrated GL-22 to have a broad-spectrum antimicrobial activity, but weak potency against Candida albicans (C. albicans). These data were similar to those of GL-29, but GL-22 showed much lower haemolysis and lower cytotoxicity against HaCaT cells. Moreover, GL-22 exhibited potent in vivo activity at 4 × MIC against Staphylococcus aureus (S. aureus)-infected larvae. Several short analogues, from the C-terminus and N-terminus of GL-22, were modified to identify the shortest functional motif. However, the results demonstrated that the shorter peptides did not exhibit potent antimicrobial activity, and the factors that affect the bioactive potency of these short analogues need to be further studied.
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23
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Wang J, Zhang Z, Li J, Huang B, Jiang Z, Pan Y, He T, Hu Y, Wang L. Tranexamic acid protects against implant-associated infection by reducing biofilm formation. Sci Rep 2022; 12:4840. [PMID: 35318416 PMCID: PMC8941089 DOI: 10.1038/s41598-022-08948-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/15/2022] [Indexed: 11/15/2022] Open
Abstract
Perioperative administration of tranexamic acid (TXA) is thought to be related to decreased postoperative implant-associated infection rates; however, the relationship remains unclear. We explored the inhibitory effect of TXA on infection both in vitro and in vivo. We investigated biofilm formation after TXA administration through different detection methods, all of which showed that TXA reduces biofilm formation in vitro and was further proven to be associated with decreased protein and polysaccharide contents in biofilms. We observed decreased biofilm on implants and decreased bacteria in the infection area with strengthened neutrophil accumulation in the mouse implant-associated infection model. Our results suggest that TXA protects against implant-associated infection by reducing biofilm formation in infected tissues.
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Affiliation(s)
- Jiahao Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Zhen Zhang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Jingyi Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Biying Huang
- Department of Ultrasound Diagnosis, Second Xiangya Hospital, Central South University, Changsha, China
| | - Zichao Jiang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Yixiao Pan
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Tailai He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China
| | - Yihe Hu
- Department of Orthopedics, First Affiliated Hospital, School of Medicine, Zhejiang University, No.79 Qingchun Road, Hangzhou, 310003, Zhejiang, China. .,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China.
| | - Long Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China. .,Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China. .,Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, 87 Xiangya Road, Kaifu District, Changsha City, 410008, Hunan, China.
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24
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Mohammed EHM, Lohan S, Tiwari RK, Parang K. Amphiphilic cyclic peptide [W 4KR 5]-Antibiotics combinations as broad-spectrum antimicrobial agents. Eur J Med Chem 2022; 235:114278. [PMID: 35339840 DOI: 10.1016/j.ejmech.2022.114278] [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: 01/13/2022] [Revised: 03/09/2022] [Accepted: 03/09/2022] [Indexed: 11/04/2022]
Abstract
Linear and cyclic amphiphilic peptides, (W4KR5) and [W4KR5], were evaluated as antibacterial agents against Gram-positive and Gram-negative bacteria, including four multi-drug resistant strains and the corresponding four non-resistant strains. Cyclic peptide [W4KR5] showed higher antibacterial activity than the linear (W4KR5) counterpart. Cyclic [W4KR5] was subjected to combination (physical mixture or covalent conjugation) with meropenem as a model antibiotic to study the impact of the combination on antimicrobial activity. A physical mixture of meropenem and [W4KR5] showed synergistic antibacterial activity against Gram-negative P. aeruginosa (ATCC BAA-1744) and P. aeruginosa (ATCC 27883) strains. [W4KR5] was further subjected to extensive antibacterial studies against additional 10 bacteria strains, showing significant antibacterial efficacy against Gram-positive bacteria strains. Combinations studies of [W4KR5] with an additional 9 commercially available antibiotics showed significant enhancement in antibacterial activity for all tested combinations, especially with tetracycline, tobramycin, levofloxacin, clindamycin, daptomycin, polymyxin, kanamycin, and vancomycin. Time-kill kinetics assay and flow cytometry results exhibited that [W4KR5] had a time-dependent synergistic effect and membrane disruption property. These data indicate that [W4KR5] improves the antibacterial activity, presumably by facilitating the internalization of antibiotics and their interaction with the intracellular targets. This study introduces a potential strategy for treating multidrug-resistant pathogens by combining [W4KR5] and a variety of classical antibiotics to improve the antibacterial effectiveness.
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Affiliation(s)
- Eman H M Mohammed
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA; AJK Biopharmaceutical, 5270 California Ave, Irvine, CA, 92617, USA; Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Koam, 51132, Egypt
| | - Sandeep Lohan
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA; AJK Biopharmaceutical, 5270 California Ave, Irvine, CA, 92617, USA
| | - Rakesh K Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA.
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA.
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25
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Bhukta S, Samal SK, Vasudevan S, Sarveswari HB, Shanmugam K, Princy SA, Dandela R. A Prospective Diversity of Antibacterial Small Peptidomimetic and Quorum Sensing Mediated Drug: A Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202102743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Swadhapriya Bhukta
- Institute of Chemical Technology-Indian Oil Odisha Campus Department of Industrial and Engineering Chemistry Bhubaneswar 751013 Odisha India
| | - Sangram Keshari Samal
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies Indian Council of Medical Research-Regional Medical Research Center Bhubaneswar 751013 Odisha India
| | - Sahana Vasudevan
- Quorum Sensing Laboratory Centre for Research in Infectious Diseases (CRID) School of Chemical and Biotechnology SASTRA University Thanjavur 613401 Tamil Nadu India
| | - Hema Bhagavathi Sarveswari
- Quorum Sensing Laboratory Centre for Research in Infectious Diseases (CRID) School of Chemical and Biotechnology SASTRA University Thanjavur 613401 Tamil Nadu India
| | - Karthi Shanmugam
- Quorum Sensing Laboratory Centre for Research in Infectious Diseases (CRID) School of Chemical and Biotechnology SASTRA University Thanjavur 613401 Tamil Nadu India
| | - S. Adline Princy
- Quorum Sensing Laboratory Centre for Research in Infectious Diseases (CRID) School of Chemical and Biotechnology SASTRA University Thanjavur 613401 Tamil Nadu India
| | - Rambabu Dandela
- Institute of Chemical Technology-Indian Oil Odisha Campus Department of Industrial and Engineering Chemistry Bhubaneswar 751013 Odisha India
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26
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Wang G, Zietz CM, Mudgapalli A, Wang S, Wang Z. The evolution of the antimicrobial peptide database over 18 years: Milestones and new features. Protein Sci 2022; 31:92-106. [PMID: 34529321 PMCID: PMC8740828 DOI: 10.1002/pro.4185] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/03/2021] [Accepted: 09/03/2021] [Indexed: 01/03/2023]
Abstract
The antimicrobial peptide database (APD) has served the antimicrobial peptide field for 18 years. Because it is widely used in research and education, this article documents database milestones and key events that have transformed it into the current form. A comparison is made for the APD peptide statistics between 2010 and 2020, validating the major database findings to date. We also describe new additions ranging from peptide entries to search functions. Of note, the APD also contains antimicrobial peptides from host microbiota, which are important in shaping immune systems and could be linked to a variety of human diseases. Finally, the database has been re-programmed to the web branding and latest security compliance of the University of Nebraska Medical Center. The reprogrammed APD can be accessed at https://aps.unmc.edu.
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Affiliation(s)
- Guangshun Wang
- Department of Pathology and MicrobiologyCollege of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical CenterOmahaNebraskaUSA
| | - C. Michael Zietz
- Research Information Technology OfficeUniversity of Nebraska Medical CenterOmahaNebraskaUSA
| | - Ashok Mudgapalli
- Research Information Technology OfficeUniversity of Nebraska Medical CenterOmahaNebraskaUSA
| | - Shuona Wang
- Department of Pathology and MicrobiologyCollege of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical CenterOmahaNebraskaUSA
| | - Zhe Wang
- Department of Pathology and MicrobiologyCollege of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical CenterOmahaNebraskaUSA
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27
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Construction and Characterizations of Antibacterial Surfaces Based on Self-Assembled Monolayer of Antimicrobial Peptides (Pac-525) Derivatives on Gold. COATINGS 2021. [DOI: 10.3390/coatings11091014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Infection that is related to implanted biomaterials is a serious issue in the clinic. Antimicrobial peptides (AMPs) have been considered as an ideal alternative to traditional antibiotic drugs, for the treatment of infections, while some problems, such as aggregation and protein hydrolysis, are still the dominant concerns that compromise their antimicrobial efficiency in vivo. Methods: In this study, antimicrobial peptides underwent self-assembly on gold substrates, forming good antibacterial surfaces, with stable antibacterial behavior. The antimicrobial ability of AMPs grafted on the surfaces, with or without glycine spaces or a primer layer, was evaluated. Results: Specifically, three Pac-525 derivatives, namely, Ac-CGn-KWRRWVRWI-NH2 (n = 0, 2, or 6) were covalently grafted onto gold substrates via the self-assembling process for inhibiting the growth of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Furthermore, the alkanethiols HS(CH)10SH were firstly self-assembled into monolayers, as a primer layer (SAM-SH) for the secondary self-assembly of Pac-525 derivatives, to effectively enhance the bactericidal performance of the grafted AMPs. The -(CH)10-S-S-G6Pac derivative was highly effective against S. aureus and E. coli, and reduced the viable amount of E. coli and S. aureus to 0.4% and 33.2%, respectively, after 24 h of contact. In addition, the immobilized AMPs showed good biocompatibility, promoting bone marrow stem cell proliferation. Conclusion: the self-assembled monolayers of the Pac-525 derivatives have great potential as a novel therapeutic method for the treatment of implanted biomaterial infections.
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28
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Design, Synthesis and Evaluation of Antimicrobial Database-Derived Peptides Against Drug-Resistant Gram-Positive and Gram-Negative Pathogens. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10183-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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29
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Antibiofilm peptides as a promising strategy: comparative research. Appl Microbiol Biotechnol 2021; 105:1647-1656. [PMID: 33475795 DOI: 10.1007/s00253-021-11103-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/04/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Biofilms lead to approximately 65% of infections, and these infections are hard to treat. Thus, it is crucial to identify effective antibiofilm agents with low cytotoxicity. Peptides with antibiofilm activity have been regarded as promising solutions, and peptides with MBICs (minimal biofilm inhibitory concentrations) that are lower than their minimal inhibitory concentration (MICs) (minimal inhibitory concentrations) are appealing. Therefore, we systematically summarized and classified previously reported peptides with antibiofilm activity. A total of 51 peptides with antibiofilm activity were classified into 14 categories. The MICs and MBICs of these fourteen representative peptides, one selected from each category, were compared against the Gram-positive bacterium Streptococcus mutans, the Gram-negative bacterium Pseudomonas aeruginosa, and the fungus Candida albicans. Six representative peptides (C5-pleurocidin, C6-Pac-525, C9-protegrin-1, C11-TetraF2W-RR, C13-WLBU2, and C14-melittin) showed antibiofilm activity against both bacteria and fungi, and among these 6 representative peptides, 4 peptides (C9-protegrin-1, C11-TetraF2W-RR, C13-WLBU2, and C14-melittin) could prevent biofilm formation with lower MBIC values than their MICs. CLSM (confocal laser scanning microscopy), SEM (scanning electron microscopy), and TEM (transmission electron microscopy) were further used to observe the morphologies of the biofilms after treatment with the peptides. Among the above 4 peptides, WLBU2 and melittin sparsely scattered the biofilms without destroying the bacteria. In conclusion, the currently reported peptides with antibiofilm activity are limited in number, but peptides with lower MBICs than MICs exist as promising candidates against biofilm-related infections and need further study. KEY POINTS: • Antibiofilm peptides could inhibit biofilm formation with MBICs that are lower than MICs. • The mechanism of antibiofilm peptides is not only due to antimicrobial activity.
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30
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Ricardo SIC, Anjos IIL, Monge N, Faustino CMC, Ribeiro IAC. A Glance at Antimicrobial Strategies to Prevent Catheter-Associated Medical Infections. ACS Infect Dis 2020; 6:3109-3130. [PMID: 33245664 DOI: 10.1021/acsinfecdis.0c00526] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Urinary and intravascular catheters are two of the most used invasive medical devices; however, microbial colonization of catheter surfaces is responsible for most healthcare-associated infections (HAIs). Several antimicrobial-coated catheters are available, but recurrent antibiotic therapy can decrease their potential activity against resistant bacterial strains. The aim of this Review is to question the actual effectiveness of currently used (coated) catheters and describe the progress and promise of alternative antimicrobial coatings. Different strategies have been reviewed with the common goal of preventing biofilm formation on catheters, including release-based approaches using antibiotics, antiseptics, nitric oxide, 5-fluorouracil, and silver as well as contact-killing approaches employing quaternary ammonium compounds, chitosan, antimicrobial peptides, and enzymes. All of these strategies have given proof of antimicrobial efficacy by modifying the physiology of pathogens or disrupting their structural integrity. The aim for synergistic approaches using multitarget processes and the combination of both antifouling and bactericidal properties holds potential for the near future. Despite intensive research in biofilm preventive strategies, laboratorial studies still present some limitations since experimental conditions usually are not the same and also differ from biological conditions encountered when the catheter is inserted in the human body. Consequently, in most cases, the efficacy data obtained from in vitro studies is not properly reflected in the clinical setting. Thus, further well-designed clinical trials and additional cytotoxicity studies are needed to prove the efficacy and safety of the developed antimicrobial strategies in the prevention of biofilm formation at catheter surfaces.
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Affiliation(s)
- Susana I. C. Ricardo
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Inês I. L. Anjos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Nuno Monge
- Centro Interdisciplinar de Estudos Educacionais (CIED), Escola Superior de Educação de Lisboa, Instituto Politécnico de Lisboa, Campus de Benfica do IPL, 1549-003 Lisboa, Portugal
| | - Célia M. C. Faustino
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Isabel A. C. Ribeiro
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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31
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Memariani H, Memariani M, Robati RM, Nasiri S, Abdollahimajd F, Baseri Z, Moravvej H. Anti-Staphylococcal and cytotoxic activities of the short anti-microbial peptide PVP. World J Microbiol Biotechnol 2020; 36:174. [PMID: 33083940 DOI: 10.1007/s11274-020-02948-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/08/2020] [Indexed: 01/25/2023]
Abstract
Over the past years, short anti-microbial peptides have drawn growing attention in the research and trade literature because they are usually capable of killing a broad spectrum of pathogens by employing unique mechanisms of action. This study aimed to evaluate the anti-bacterial effects of a previously designed peptide named PVP towards the clinical strains of methicillin-resistant Staphylococcus aureus (MRSA) in vitro. Secondary structure, cytotoxicity, and membrane-permeabilizing effects of the peptide were also assessed. PVP had a tendency to adopt alpha-helical conformation based upon structural predictions and circular dichroism spectroscopy (in 50% trifluoroethanol). The peptide showed MIC values ranging from 1 to 16 µg/mL against 10 strains of MRSA. In contrast to ciprofloxacin and gentamicin, PVP at sub-lethal concentration (1 µg/mL) did not provoke the development of peptide resistance after 14 serial passages. Remarkably, 1 h of exposure to 4 × MBC of PVP (8 µg/mL) was sufficient for total bacterial clearance, whereas 4 × MBC of vancomycin (8 µg/mL) failed to totally eradicate bacterial cells, even after 8 h. PVP showed negligible cytotoxicity against human dermal fibroblasts at concentrations required to kill the MRSA strains. The results of flow cytometric analysis and fluorescence microscopy revealed that PVP caused bacterial membrane permeabilization, eventually culminating in cell death. Owing to the potent anti-bacterial activity, fast bactericidal kinetics, and negligible cytotoxicity, PVP has the potential to be used as a candidate antibiotic for the topical treatment of MRSA infections.
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Affiliation(s)
- Hamed Memariani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojtaba Memariani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Reza Mahmoud Robati
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Dermatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soheila Nasiri
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Dermatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zohre Baseri
- Department of Pathology and Laboratory Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Moravvej
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Lachowicz JI, Szczepski K, Scano A, Casu C, Fais S, Orrù G, Pisano B, Piras M, Jaremko M. The Best Peptidomimetic Strategies to Undercover Antibacterial Peptides. Int J Mol Sci 2020; 21:E7349. [PMID: 33027928 PMCID: PMC7583890 DOI: 10.3390/ijms21197349] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 02/05/2023] Open
Abstract
Health-care systems that develop rapidly and efficiently may increase the lifespan of humans. Nevertheless, the older population is more fragile, and is at an increased risk of disease development. A concurrently growing number of surgeries and transplantations have caused antibiotics to be used much more frequently, and for much longer periods of time, which in turn increases microbial resistance. In 1945, Fleming warned against the abuse of antibiotics in his Nobel lecture: "The time may come when penicillin can be bought by anyone in the shops. Then there is the danger that the ignorant man may easily underdose himself and by exposing his microbes to non-lethal quantities of the drug make them resistant". After 70 years, we are witnessing the fulfilment of Fleming's prophecy, as more than 700,000 people die each year due to drug-resistant diseases. Naturally occurring antimicrobial peptides protect all living matter against bacteria, and now different peptidomimetic strategies to engineer innovative antibiotics are being developed to defend humans against bacterial infections.
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Affiliation(s)
- Joanna Izabela Lachowicz
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Kacper Szczepski
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Alessandra Scano
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Cinzia Casu
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Sara Fais
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Germano Orrù
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Barbara Pisano
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Monica Piras
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
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Mishra B, Lakshmaiah Narayana J, Lushnikova T, Zhang Y, Golla RM, Zarena D, Wang G. Sequence Permutation Generates Peptides with Different Antimicrobial and Antibiofilm Activities. Pharmaceuticals (Basel) 2020; 13:ph13100271. [PMID: 32992772 PMCID: PMC7600788 DOI: 10.3390/ph13100271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 12/27/2022] Open
Abstract
Antibiotic resistance poses a threat to our society, and 10 million people could die by 2050. To design potent antimicrobials, we made use of the antimicrobial peptide database (APD). Using the database filtering technology, we identified a useful template and converted it into an effective peptide WW291 against methicillin-resistant Staphylococcus aureus (MRSA). Here, we compared the antibacterial activity and cytotoxicity of a family of peptides obtained from sequence permutation of WW291. The resulting eight WW peptides (WW291-WW298) gained different activities against a panel of bacteria. While WW295 inhibited the growth of Escherichia coli, WW298 was highly active against S. aureus USA300 LAC. Consistently with this, WW298 was more effective in permeating or depolarizing the S. aureus membranes, whereas WW295 potently permeated the E. coli membranes. In addition, WW298, but not WW295, inhibited the MRSA attachment and could disrupt its preformed biofilms more effectively than daptomycin. WW298 also protected wax moths Galleria mellonella from MRSA infection causing death. Thus, sequence permutation provides one useful avenue to generating antimicrobial peptides with varying activity spectra. Taken together with amino acid composition modulation, these methods may lead to narrow-spectrum peptides that are more promising to selectively eliminate invading pathogens without damaging commensal microbiota.
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Functional Characterization of Temporin-SHe, a New Broad-Spectrum Antibacterial and Leishmanicidal Temporin-SH Paralog from the Sahara Frog ( Pelophylax saharicus). Int J Mol Sci 2020; 21:ijms21186713. [PMID: 32933215 PMCID: PMC7555312 DOI: 10.3390/ijms21186713] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Amphibian skin is a promising natural resource for antimicrobial peptides (AMPs), key effectors of innate immunity with attractive therapeutic potential to fight antibiotic-resistant pathogens. Our previous studies showed that the skin of the Sahara Frog (Pelophylax saharicus) contains broad-spectrum AMPs of the temporin family, named temporins-SH. Here, we focused our study on temporin-SHe, a temporin-SHd paralog that we have previously identified in this frog but was never structurally and functionally characterized. We synthesized and determined the structure of temporin-SHe. This non-amphipathic α-helical peptide was demonstrated to strongly destabilize the lipid chain packing of anionic multilamellar vesicles mimicking bacterial membranes. Investigation of the antimicrobial activity revealed that temporin-SHe targets Gram-negative and Gram-positive bacteria, including clinical isolates of multi-resistant Staphylococcus aureus strains. Temporin-SHe exhibited also antiparasitic activity toward different Leishmania species responsible for visceral leishmaniasis, as well as cutaneous and mucocutaneous forms. Functional assays revealed that temporin-SHe exerts bactericidal effects with membrane depolarization and permeabilization, via a membranolytic mechanism observed by scanning electron microscopy. Temporin-SHe represents a new member of the very limited group of antiparasitic temporins/AMPs. Despite its cytotoxicity, it is nevertheless an interesting tool to study the AMP antiparasitic mechanism and design new antibacterial/antiparasitic agents.
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Bioinformatic Analysis of 1000 Amphibian Antimicrobial Peptides Uncovers Multiple Length-Dependent Correlations for Peptide Design and Prediction. Antibiotics (Basel) 2020; 9:antibiotics9080491. [PMID: 32784626 PMCID: PMC7459754 DOI: 10.3390/antibiotics9080491] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 12/18/2022] Open
Abstract
Amphibians are widely distributed on different continents, except for the polar regions. They are important sources for the isolation, purification and characterization of natural compounds, including peptides with various functions. Innate immune antimicrobial peptides (AMPs) play a critical role in warding off invading pathogens, such as bacteria, fungi, parasites, and viruses. They may also have other biological functions such as endotoxin neutralization, chemotaxis, anti-inflammation, and wound healing. This article documents a bioinformatic analysis of over 1000 amphibian antimicrobial peptides registered in the Antimicrobial Peptide Database (APD) in the past 18 years. These anuran peptides were discovered in Africa, Asia, Australia, Europe, and America from 1985 to 2019. Genomic and peptidomic studies accelerated the discovery pace and underscored the necessity in establishing criteria for peptide entry into the APD. A total of 99.9% of the anuran antimicrobial peptides are less than 50 amino acids with an average length of 24 and a net charge of +2.5. Interestingly, the various amphibian peptide families (e.g., temporins, brevinins, esculentins) can be connected through multiple length-dependent relationships. With an increase in length, peptide net charge increases, while the hydrophobic content decreases. In addition, glycine, leucine, lysine, and proline all show linear correlations with peptide length. These correlations improve our understanding of amphibian peptides and may be useful for prediction and design of new linear peptides with potential applications in treating infectious diseases, cancer and diabetes.
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Abstract
Antimicrobial peptides are important candidates for developing new classes of antibiotics because of their potency against antibiotic-resistant pathogens. Current research focuses on topical applications and it is unclear how to design peptides with systemic efficacy. To address this problem, we designed two potent peptides by combining database-guided discovery with structure-based design. When bound to membranes, these two short peptides with an identical amino acid composition can adopt two distinct amphipathic structures: A classic horizontal helix (horine) and a novel vertical spiral structure (verine). Their horizontal and vertical orientations on membranes were determined by solid-state 15N NMR data. While horine was potent primarily against gram-positive pathogens, verine showed broad-spectrum antimicrobial activity. Both peptides protected greater than 80% mice from infection-caused deaths. Moreover, horine and verine also displayed significant systemic efficacy in different murine models comparable to conventional antibiotics. In addition, they could eliminate resistant pathogens and preformed biofilms. Significantly, the peptides showed no nephrotoxicity to mice after intraperitoneal or intravenous administration for 1 wk. Our study underscores the significance of horine and verine in fighting drug-resistant pathogens.
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Qi P, Wang Y, Zhang D, Sun Y, Zheng L. Multichannel bacterial discrimination based on recognition and disintegration disparity of short antimicrobial peptides. Anal Biochem 2020; 600:113764. [DOI: 10.1016/j.ab.2020.113764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/17/2020] [Accepted: 04/27/2020] [Indexed: 12/14/2022]
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Martins DB, Pacca CC, da Silva AMB, de Souza BM, de Almeida MTG, Palma MS, Arcisio-Miranda M, Dos Santos Cabrera MP. Comparing activity, toxicity and model membrane interactions of Jelleine-I and Trp/Arg analogs: analysis of peptide aggregation. Amino Acids 2020; 52:725-741. [PMID: 32367434 DOI: 10.1007/s00726-020-02847-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/23/2020] [Indexed: 01/06/2023]
Abstract
Increasing resistance in antibiotic and chemotherapeutic treatments has been pushing studies of design and evaluation of bioactive peptides. Designing relies on different approaches from minimalist sequences and endogenous peptides modifications to computational libraries. Evaluation relies on microbiological tests. Aiming a deeper understanding, we chose the octapeptide Jelleine-I (JI) for its selective and low toxicity profile, designed small modifications combining the substitutions of Phe by Trp and Lys/His by Arg and tested the antimicrobial and anticancer activity on melanoma cells. Biophysical methods identified environment-dependent modulation of aggregation, but critical aggregation concentrations of JI and analogs in buffer show that peptides start membrane interactions as monomers. The presence of model membranes increases or reduces the partial aggregation of peptides. Compared to JI, analog JIF2WR shows the lowest tendency to aggregation on bacterial model membranes. JI and analogs are lytic to model membranes. Their composition-dependent performance indicates preference for the higher charged anionic bilayers in line with their superior performance toward Staphylococcus aureus and Streptococcus pneumoniae. JIF2WR presented the higher partitioning, higher lytic activity and lower aggregated contents. Despite these increased membranolytic activities, JIF2WR exhibited comparable antimicrobial activity in relation to JI at the expenses of some loss in selectivity. We found that the substitution Phe/Trp (JIF2W) tends to decrease antimicrobial but to increase anticancer activity and aggregation on model membranes and the toxicity toward human cells. However, the concomitant substitution Lys/His by Arg (JIF2WR) modulates some of these tendencies, increasing both the antimicrobial and the anticancer activity while decreasing the aggregation tendency.
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Affiliation(s)
- Danubia Batista Martins
- Departamento de Física, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil
| | | | - Annielle Mendes Brito da Silva
- Laboratório de Neurobiologia Estrutural e Funcional (LaNEF), Departamento de Biofísica, Universidade Federal de São Paulo, R. Botucatu, 862, Edifício ECB, 7º andar, São Paulo, SP, 04023-062, Brazil
| | - Bibiana Monson de Souza
- Centro de Estudos de Insetos Sociais, Universidade Estadual Paulista (Unesp), Câmpus Rio Claro, Av. 24-A, 1515, Rio Claro, SP, 13506-900, Brazil
| | - Margarete Teresa Gottardo de Almeida
- Departamento de Doenças Dermatológicas Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mario Sérgio Palma
- Centro de Estudos de Insetos Sociais, Universidade Estadual Paulista (Unesp), Câmpus Rio Claro, Av. 24-A, 1515, Rio Claro, SP, 13506-900, Brazil
| | - Manoel Arcisio-Miranda
- Laboratório de Neurobiologia Estrutural e Funcional (LaNEF), Departamento de Biofísica, Universidade Federal de São Paulo, R. Botucatu, 862, Edifício ECB, 7º andar, São Paulo, SP, 04023-062, Brazil
| | - Marcia Perez Dos Santos Cabrera
- Departamento de Física, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil.
- Departamento de Química e Ciências Ambientais, Universidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas (Ibilce), R. Cristóvão Colombo, 2265, São José do Rio Preto, SP, 15054-000, Brazil.
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Shemesh M, Ostrov I. Role of Bacillus species in biofilm persistence and emerging antibiofilm strategies in the dairy industry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2327-2336. [PMID: 31975392 DOI: 10.1002/jsfa.10285] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/28/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Biofilm-forming Bacillus species are often involved in persistent contamination and spoilage of dairy products. They therefore present a major microbiological challenge in the field of dairy food quality and safety. Due to their substantial physiological versatility, Bacillus species can survive in various parts of dairy manufacturing plants, leading to a high risk of product spoilage and potential dissemination of foodborne diseases. Furthermore, biofilm and heat-resistant spore formation make these bacteria challenging to eliminate. Thus, some strategies have been employed to remove, prevent, or delay the formation of Bacillus biofilms in the dairy industry, but with limited success. Lack of understanding of the Bacillus biofilm structure and behavior in conditions relevant to dairy-associated environments could partially account for this situation. The current paper reviews dairy-associated biofilm formation by Bacillus species, with particular attention to the role of biofilm in Bacillus species adaptation and survival in a dairy processing environment. Relevant model systems are discussed for the development of novel antimicrobial approaches to improve the quality of dairy food. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
| | - Ievgeniia Ostrov
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
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Bozelli JC, Yune J, Dang X, Narayana JL, Wang G, Epand RM. Membrane activity of two short Trp-rich amphipathic peptides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183280. [PMID: 32220553 DOI: 10.1016/j.bbamem.2020.183280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/09/2020] [Accepted: 03/18/2020] [Indexed: 12/13/2022]
Abstract
Short linear antimicrobial peptides are attractive templates for developing new antibiotics. Here, it is described a study of the interaction between two short Trp-rich peptides, horine and verine-L, and model membranes. Isothermal titration calorimetry studies showed that the affinity of these peptides towards large unilamellar vesicles (LUV) having a lipid composition mimicking the lipid composition of S. aureus membranes is ca. 30-fold higher than that towards E. coli mimetics. The former interaction is driven by enthalpy and entropy, while the latter case is driven by entropy, suggesting differences in the forces that play a role in the binding to the two types of model membranes. Upon membrane binding the peptides acquired different conformations according to circular dichroism (CD) studies; however, in both cases CD studies indicated stacked W-residues. Peptide-induced membrane permeabilization, lipid flip-flop, molecular packing at the membrane-water interface, and lateral lipid segregation were observed in all cases. However, the extent of these peptide-induced changes on membrane properties was always higher in S. aureus than E. coli mimetics. Both peptides seem to act via a similar mechanism of membrane permeabilization of S. aureus membrane mimetics, while their mechanisms seem to differ in the case of E. coli. This may be the result of differences in both the peptides´ structure and the membrane lipid composition between both types of bacteria.
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Affiliation(s)
- José C Bozelli
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre, Hamilton, ON L8S 4K1, Canada
| | - Jenny Yune
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre, Hamilton, ON L8S 4K1, Canada
| | - Xiangli Dang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5990, USA
| | - Jayaram Lakshmaiah Narayana
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5990, USA
| | - Guangshun Wang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5990, USA
| | - Richard M Epand
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre, Hamilton, ON L8S 4K1, Canada.
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Chen Z, Yu X, Zhang A, Wang F, Xing Y. De Novo Hydrocarbon-Stapling Design of Single-Turn α-Helical Antimicrobial Peptides. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09964-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pinto IB, dos Santos Machado L, Meneguetti BT, Nogueira ML, Espínola Carvalho CM, Roel AR, Franco OL. Utilization of antimicrobial peptides, analogues and mimics in creating antimicrobial surfaces and bio-materials. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107237] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Zhong H, Xie Z, Zhang S, Wei H, Song Y, Zhang Y, Wang M. Brevinin-GR23 from frog Hylarana guentheri with antimicrobial and antibiofilm activities against Staphylococcus aureus. Biosci Biotechnol Biochem 2019; 84:143-153. [PMID: 31549575 DOI: 10.1080/09168451.2019.1670045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Brevinin-GR23 (B-GR23) was a brevinin-2 like antimicrobial peptide, which had antimicrobial activity against Staphylococcus aureus with minimum inhibitory concentration (MIC) of 16 μM. B-GR23 increased the bacterial membrane permeation, leading to the damage of membrane integrity and the leakage of genomic DNA, then causing the cell death. The peptide nearly inhibited all plantonic bacteria to start the initial attachment of biofilm at the concentration of 1 × MIC. Whereas the disruption rates on immature and mature biofilm decreased from 60% to 20%. B-GR23 reduced the production of extracellular polysaccharides (EPS) in the planktonic growth of S. aureus, which is a crucial structure of biofilm formation. B-GR23 with the concentration of ½ × MIC inhibited 50% water-soluble EPS, and 48% water-insoluble EPS, which contributed to the antibiofilm activity. B-GR23 had no significant toxicity to human blood cells under-tested concentration (200 μM), making it a potential template for designing antimicrobial peptides.
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Affiliation(s)
- Hengren Zhong
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Zhipeng Xie
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Shuxia Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Hanqi Wei
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Yanting Song
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Yingxia Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan, P. R. China
| | - Manchuriga Wang
- College of Animal Science, Hainan University, Haikou, Hainan, P. R. China
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Narayana JL, Mishra B, Lushnikova T, Golla RM, Wang G. Modulation of antimicrobial potency of human cathelicidin peptides against the ESKAPE pathogens and in vivo efficacy in a murine catheter-associated biofilm model. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2019; 1861:1592-1602. [PMID: 31319057 PMCID: PMC6689428 DOI: 10.1016/j.bbamem.2019.07.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/03/2019] [Accepted: 07/11/2019] [Indexed: 12/22/2022]
Abstract
Antimicrobial peptides are essential components of innate immune systems that protect hosts from infection. They are also useful candidates for developing a new generation of antibiotics to fight antibiotic-resistant pathogens. Human innate immune peptide LL-37 can inhibit biofilm formation, but suffers from high cost due to a long peptide length and rapid protease degradation. To improve the peptide, we previously identified the major active region and changed the peptide backbone structure. This study designed two families of new peptides by altering peptide side chains. Interestingly, these peptides displayed differential potency against various ESKAPE pathogens in vitro and substantially reduced hemolysis. Further potency test in vivo revealed that 17tF-W eliminated the burden of methicillin-resistant Staphylococcus aureus (MRSA) USA300 in both mouse-embedded catheters and their surrounding tissues. In addition, peptide treatment suppressed the level of chemokine TNFα, and boosted the levels of chemokines MCP-1, IL-17A and IL-10 in the surrounding tissues of the infected catheter embedded in mice. In conclusion, we have designed a set of new LL-37 peptides with varying antimicrobial activities, opening the door to potential topical treatment of infections involving different drug-resistant pathogens.
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Affiliation(s)
- Jayaram Lakshmaiah Narayana
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Biswajit Mishra
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Tamara Lushnikova
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Radha M Golla
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Guangshun Wang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA.
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Dolle A, Nagati VB, Hunashal Y, Krishnamurthy K, Pasupulati AK, Raghothama S, Gowd KH. Disulfide engineering on temporin-SHf: Stabilizing the bioactive conformation of an ultra-short antimicrobial peptide. Chem Biol Drug Des 2019; 94:1634-1646. [PMID: 30924306 DOI: 10.1111/cbdd.13525] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 03/07/2019] [Accepted: 03/17/2019] [Indexed: 12/14/2022]
Abstract
In Silico searching for short antimicrobial peptides has revealed temporin-SHf as the short (8AA), hydrophobic, broad spectrum, and natural antimicrobial peptide. Important drawback associated with temporin-SHf is the susceptibility of its bioactive conformation for denaturation and proteolytic degradation. In the current report, disulfide engineering strategy has been adopted to improve the stability of bioactive conformation of temporin-SHf. The functionally non-critical Leu4 and Ile7 residues at i and i + 3 position of helical conformation of temporin-SHf were mutated with cysteine disulfide. Designed [L4C, I7C]temporin-SHf was synthesized, characterized using NMR spectroscopy, and accessed for antimicrobial activity. [L4C, I7C]Temporin-SHf adopts helical conformation from Phe3 to Phe8 in the absence of membrane-mimetic environment and retains broad spectrum antimicrobial activity. The reduction potential of cysteine disulfide of [L4C, I7C]temporin-SHf is -289 mV. Trypsin-induced digestion and serum-induced digestion have confirmed the advantage of cysteine disulfide in imparting proteolytic stability to temporin-SHf. Disulfide-stabilized temporin-SHf may serve as a good model for the rational design of temporin-SHf based antibiotics for treatment of infectious diseases.
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Affiliation(s)
- Ashwini Dolle
- Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kalaburagi, Karnataka, India
| | - Veera Babu Nagati
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Yamanappa Hunashal
- NMR Research Centre, Indian Institute of Science, Bangalore, Karnataka, India
| | - Kiran Krishnamurthy
- NMR Research Centre, Indian Institute of Science, Bangalore, Karnataka, India
| | - Anil Kumar Pasupulati
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | | | - Konkallu Hanumae Gowd
- Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kalaburagi, Karnataka, India
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Prevention of urinary catheter-associated infections by coating antimicrobial peptides from crowberry endophytes. Sci Rep 2019; 9:10753. [PMID: 31341199 PMCID: PMC6656713 DOI: 10.1038/s41598-019-47108-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 06/24/2019] [Indexed: 11/08/2022] Open
Abstract
Urinary catheters are extensively used in hospitals, being responsible for about 75% of hospital-acquired infections. In this work, a de novo designed antimicrobial peptide (AMP) Chain201D was studied in the context of urinary catheter-associated infections. Chain201D showed excellent antimicrobial activity against relevant ATCC strains and clinical isolates of bacteria and yeast and demonstrated high stability in a wide range of temperatures, pH and salt concentrations. Moreover, the bactericidal activity of Chain201D immobilized on a model surface was studied against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), some of the most prevalent strains found in urinary catheter-associated infections. Chain201D was successfully tethered to ((1-mercapto-11-undecyl)-(tetra(ethylene glycol) (EG4)) terminated self-assembled monolayers (SAMs), (EG4-SAMs), activated by 1,1'-Carbonyldiimidazole (CDI) at different concentrations. Chain201D surfaces can bind and kill by contact a high percentage of adherent bacteria. These achievements are obtained without any peptide modification (for chemoselective conjugation) and without the use of a spacer. Moreover, increased amounts of immobilized AMP lead to higher numbers of adhered/dead bacteria, revealing a concentration-dependent behaviour and demonstrating that Chain201D has excellent potential for developing antimicrobial urinary catheters.
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Lyu Y, Chen T, Shang L, Yang Y, Li Z, Zhu J, Shan A. Design of Trp-Rich Dodecapeptides with Broad-Spectrum Antimicrobial Potency and Membrane-Disruptive Mechanism. J Med Chem 2019; 62:6941-6957. [PMID: 31276398 DOI: 10.1021/acs.jmedchem.9b00288] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
There has recently been great concern regarding antibiotics due to potential drug resistance and the impact of antibiotics on the environment. Antimicrobial peptides are believed to have potential as novel antimicrobial agents to address the problems of antibiotics. Herein, we report a set of Trp-rich dodecapeptides derived from PMAP-36 that are based on the peptide folding principle and the amino acid characteristics. An effective peptide design template, (WXYX)3, where X represents Arg or Lys and Y represents hydrophobic or neutral amino acid, was summarized with the distribution of Trp at H-bond formation sites along the α-helical structure. The template peptide 6 (3W-2), with low amphipathicity, displayed strong antimicrobial activity against laboratory strains and clinical isolates while showing no cytotoxicity. Furthermore, 6 was able to suppress the emergence of antimicrobial resistance. Membrane permeabilization assays and microscope observations revealed the potent membrane-disruptive mechanism of 6. Overall, this study diminishes the randomness in peptide design and provides a strategy for generating effective antibiotic alternatives to overcome antibiotic resistance.
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Affiliation(s)
- Yinfeng Lyu
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Tingting Chen
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Lu Shang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Yang Yang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Zhongyu Li
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Jiang Zhu
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
| | - Anshan Shan
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin , Heilongjiang 150030 , P. R. China
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das Neves RC, Mortari MR, Schwartz EF, Kipnis A, Junqueira-Kipnis AP. Antimicrobial and Antibiofilm Effects of Peptides from Venom of Social Wasp and Scorpion on Multidrug-Resistant Acinetobacter baumannii. Toxins (Basel) 2019; 11:E216. [PMID: 30974767 PMCID: PMC6520840 DOI: 10.3390/toxins11040216] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 03/28/2019] [Accepted: 04/04/2019] [Indexed: 02/07/2023] Open
Abstract
Intravascular stent infection is a rare complication with a high morbidity and high mortality; bacteria from the hospital environment form biofilms and are often multidrug-resistant (MDR). Antimicrobial peptides (AMPs) have been considered as alternatives to bacterial infection treatment. We analyzed the formation of the bacterial biofilm on the vascular stents and also tested the inhibition of this biofilm by AMPs to be used as treatment or coating. Antimicrobial activity and antibiofilm were tested with wasp (Agelaia-MPI, Polybia-MPII, Polydim-I) and scorpion (Con10 and NDBP5.8) AMPs against Acinetobacter baumannii clinical strains. A. baumannii formed a biofilm on the vascular stent. Agelaia-MPI and Polybia-MPII inhibited biofilm formation with bacterial cell wall degradation. Coating biofilms with polyethylene glycol (PEG 400) and Agelaia-MPI reduced 90% of A. baumannii adhesion on stents. The wasp AMPs Agelaia-MPI and Polybia-MPII had better action against MDR A. baumannii adherence and biofilm formation on vascular stents, preventing its formation and treating mature biofilm when compared to the other tested peptides.
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Affiliation(s)
- Rogério Coutinho das Neves
- Laboratory of Immunopathology of infectious diseases, Department of Immunology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Rua 235, Goiania, 74605-050 Goiás, Brazil.
| | - Márcia Renata Mortari
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, 70910-900 Brasilia, Brazil.
| | - Elisabeth Ferroni Schwartz
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, 70910-900 Brasilia, Brazil.
| | - André Kipnis
- Laboratory of Immunopathology of infectious diseases, Department of Immunology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Rua 235, Goiania, 74605-050 Goiás, Brazil.
| | - Ana Paula Junqueira-Kipnis
- Laboratory of Immunopathology of infectious diseases, Department of Immunology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Rua 235, Goiania, 74605-050 Goiás, Brazil.
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Kehe GM, Mori DI, Schurr MJ, Nair DP. Optically Responsive, Smart Anti-Bacterial Coatings via the Photofluidization of Azobenzenes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1760-1765. [PMID: 30605328 PMCID: PMC6552654 DOI: 10.1021/acsami.8b21058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Antibacterial strategies sans antibiotic drugs have recently garnered much interest as a mechanism by which to inhibit biofilm formation and growth on surfaces due to the rise of antibiotic-resistant bacteria. Based on the photofluidization of azobenzenes, we demonstrate for the first time the ability achieve up to a 4 log reduction in bacterial biofilms by opto-mechanically activating the disruption and dispersion of biofilms. This unique strategy with which to enable biofilm removal offers a novel paradigm with which to combat antibiotic resistance.
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Affiliation(s)
- Gannon M. Kehe
- Department of Craniofacial Biology and University of Colorado-School of Dental Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Dylan I. Mori
- Department of Craniofacial Biology and University of Colorado-School of Dental Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Michael J. Schurr
- Department of Immunology and Microbiology, University of Colorado-School of Dental Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Devatha P. Nair
- Department of Craniofacial Biology and University of Colorado-School of Dental Medicine, Anschutz Medical Campus, Aurora, Colorado 80045, United States
- Materials Science and Engineering, University of Colorado, Boulder, Colorado 80309, United States
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50
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Design of Antimicrobial Peptides: Progress Made with Human Cathelicidin LL-37. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1117:215-240. [PMID: 30980360 DOI: 10.1007/978-981-13-3588-4_12] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The incorporation of the innate immune system into humans is essential for survival and health due to the rapid replication of invading microbes and the delayed action of the adaptive immune system. Antimicrobial peptides are important components of human innate immunity. Over 100 such peptides have been identified in various human tissues. Human cathelicidin LL-37 is best studied, and there has been a growing interest in designing new peptides based on LL-37. This chapter describes the alternative processing of the human cathelicidin precursor, protease digestion, and lab cutting of LL-37. Both a synthetic peptide library and structure-based design are utilized to identify the active regions. Although challenging, the determination of the 3D structure of LL-37 enabled the identification of the core antimicrobial region. The minimal region of LL-37 can be function-dependent. We discuss the design and potential applications of LL-37 into antibacterial, antibiofilm, antiviral, antifungal, immune modulating, and anticancer peptides. LL-37 has been engineered into 17BIPHE2, a stable, selective, and potent antimicrobial, antibiofilm, and anticancer peptide. Both 17BIPHE2 and SAAP-148 can eliminate the ESKAPE pathogens and show topical in vivo antibiofilm efficacy. Also discussed are other application strategies, including peptide formulation, antimicrobial implants, and peptide-inducing factors such as vitamin D and sunlight. Finally, we summarize what we learned from peptide design based on human LL-37.
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