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Xue M, Chakraborty S, Gao R, Wang S, Gu M, Shen N, Wei L, Cao C, Sun X, Cai J. Antimicrobial Guanidinylate Polycarbonates Show Oral In Vivo Efficacy Against Clostridioides Difficile. Adv Healthc Mater 2024; 13:e2303295. [PMID: 38321619 PMCID: PMC11144102 DOI: 10.1002/adhm.202303295] [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: 09/27/2023] [Revised: 01/22/2024] [Indexed: 02/08/2024]
Abstract
The emerging antibiotic resistance has been named by the World Health Organization (WHO) as one of the top 10 threats to public health. Notably, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecalis (VREF) are designated as serious threats, whereas Clostridioides difficile (C. difficile) is recognized as one of the most urgent threats to human health and unmet medical need. Herein, they report the design and application of novel biodegradable polymers - the lipidated antimicrobial guanidinylate polycarbonates. These polymers showed potent antimicrobial activity against a panel of bacteria with fast-killing kinetics and low resistance development tendency, mainly due to their bacterial membrane disruption mechanism. More importantly, the optimal polymer showed excellent antibacterial activity against C. difficile infection (CDI) in vivo via oral administration. In addition, compared with vancomycin, the polymer demonstrated a much-prolonged therapeutic effect and virtually diminished recurrence rate of CDI. The convenient synthesis, easy scale-up, low cost, as well as biodegradability of this class of polycarbonates, together with their in vitro broad-spectrum antimicrobial activity and orally in vivo efficacy against CDI, suggest the great potential of lipidated guandinylate polycarbonates as a new class of antibacterial biomaterials to treat CDI and combat emerging antibiotic resistance.
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Affiliation(s)
- Menglin Xue
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
| | - Soumyadeep Chakraborty
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
| | - Shaohui Wang
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Meng Gu
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
| | - Ning Shen
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
| | - Lulu Wei
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
| | - Chuanhai Cao
- Department of Pharmaceutical Science, Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Xingmin Sun
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620, USA
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2
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Su M, Su Y. Recent Advances in Amphipathic Peptidomimetics as Antimicrobial Agents to Combat Drug Resistance. Molecules 2024; 29:2492. [PMID: 38893366 PMCID: PMC11173824 DOI: 10.3390/molecules29112492] [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: 04/26/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
The development of antimicrobial drugs with novel structures and clear mechanisms of action that are active against drug-resistant bacteria has become an urgent need of safeguarding human health due to the rise of bacterial drug resistance. The discovery of AMPs and the development of amphipathic peptidomimetics have lay the foundation for novel antimicrobial agents to combat drug resistance due to their overall strong antimicrobial activities and unique membrane-active mechanisms. To break the limitation of AMPs, researchers have invested in great endeavors through various approaches in the past years. This review summarized the recent advances including the development of antibacterial small molecule peptidomimetics and peptide-mimic cationic oligomers/polymers, as well as mechanism-of-action studies. As this exciting interdisciplinary field is continuously expanding and growing, we hope this review will benefit researchers in the rational design of novel antimicrobial peptidomimetics in the future.
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Affiliation(s)
- Ma Su
- College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Yongxiang Su
- College of Chemistry and Environmental Engineering, Jiaozuo University, Ren-Min Road, Jiaozuo 454000, China;
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3
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Hu Y, Wang Y, Yang F, Liu D, Lu G, Li S, Wei Z, Shen X, Jiang Z, Zhao Y, Pang Q, Song B, Shi Z, Shafique S, Zhou K, Chen X, Su W, Jian J, Tang K, Liu T, Zhu Y. Flexible Organic Photovoltaic-Powered Hydrogel Bioelectronic Dressing With Biomimetic Electrical Stimulation for Healing Infected Diabetic Wounds. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307746. [PMID: 38145346 PMCID: PMC10933690 DOI: 10.1002/advs.202307746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/28/2023] [Indexed: 12/26/2023]
Abstract
Electrical stimulation (ES) is proposed as a therapeutic solution for managing chronic wounds. However, its widespread clinical adoption is limited by the requirement of additional extracorporeal devices to power ES-based wound dressings. In this study, a novel sandwich-structured photovoltaic microcurrent hydrogel dressing (PMH dressing) is designed for treating diabetic wounds. This innovative dressing comprises flexible organic photovoltaic (OPV) cells, a flexible micro-electro-mechanical systems (MEMS) electrode, and a multifunctional hydrogel serving as an electrode-tissue interface. The PMH dressing is engineered to administer ES, mimicking the physiological injury current occurring naturally in wounds when exposed to light; thus, facilitating wound healing. In vitro experiments are performed to validate the PMH dressing's exceptional biocompatibility and robust antibacterial properties. In vivo experiments and proteomic analysis reveal that the proposed PMH dressing significantly accelerates the healing of infected diabetic wounds by enhancing extracellular matrix regeneration, eliminating bacteria, regulating inflammatory responses, and modulating vascular functions. Therefore, the PMH dressing is a potent, versatile, and effective solution for diabetic wound care, paving the way for advancements in wireless ES wound dressings.
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Affiliation(s)
- Yi‐Wei Hu
- Health Science CenterNingbo UniversityNingbo315211P. R. China
- Orthopaedic Oncology Center of Changzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Yu‐Heng Wang
- Faculty of Electrical Engineering and Computer ScienceNingbo UniversityNingbo315211P. R. China
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Fang Yang
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Ding‐Xin Liu
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Guang‐Hao Lu
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Sheng‐Tao Li
- State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Zhi‐Xiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xiang Shen
- The Research Institute of Advanced TechnologiesNingbo UniversityNingbo315211P. R. China
| | - Zhuang‐De Jiang
- State Key Laboratory for Manufacturing Systems EngineeringXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Yi‐Fan Zhao
- State Key Laboratory for Manufacturing Systems EngineeringXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Qian Pang
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Bai‐Yang Song
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Ze‐Wen Shi
- Health Science CenterNingbo UniversityNingbo315211P. R. China
| | - Shareen Shafique
- School of Physical Science and TechnologyNingbo UniversityNingbo315211P. R. China
| | - Kun Zhou
- Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong Kong ShenzhenShenzhen518172P. R. China
| | - Xiao‐Lian Chen
- Printable Electronics Research Center & Nano‐Device and Materials DivisionSuzhou Institute of Nano‐Tech and Nano‐BionicsNano Chinese Academy of SciencesSuzhou215123P. R. China
| | - Wen‐Ming Su
- Printable Electronics Research Center & Nano‐Device and Materials DivisionSuzhou Institute of Nano‐Tech and Nano‐BionicsNano Chinese Academy of SciencesSuzhou215123P. R. China
| | - Jia‐Wen Jian
- Faculty of Electrical Engineering and Computer ScienceNingbo UniversityNingbo315211P. R. China
| | - Ke‐Qi Tang
- Institute of Mass SpectrometrySchool of Material Science and Chemical EngineeringNingbo UniversityNingbo315211P. R. China
| | - Tie‐Long Liu
- Orthopaedic Oncology Center of Changzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Ya‐Bin Zhu
- Health Science CenterNingbo UniversityNingbo315211P. R. China
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Shao WB, Luo RS, Meng J, Lv XK, Xiang HM, Xiao WL, Zhou X, Liu LW, Wu ZB, Yang S. Engineering Phenothiazine-Based Functional Mimics of Host Defense Peptides as New Agrochemical Candidates: Design, Synthesis, and Antibacterial Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37906428 DOI: 10.1021/acs.jafc.3c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
In the protracted "arms race" between host and plant pathogenic bacteria, host organisms have evolved powerful weapons known as host defense peptides (HDPs). However, natural HDPs are not suitable for large-scale applications; therefore, researchers have chosen to develop bespoke small-molecule functional mimics. Phenothiazine derivatives were developed as functional HDPs mimics, owing to their broad biological activity and high lipophilicity. The phenothiazine analogues designed in this study exhibited excellent in vitro bioactivity against the three Gram-negative bacteria Xanthomonas oryzae pv oryzae, Xanthomonas axonopodis pv citri, and Pseudomonas syringae pv actinidiae, with optimal EC50 values of 0.80, 0.31, and 1.91 μg/mL, respectively. Preliminary evidence suggests that compound C2 may act on bacterial cell membranes and interact with bacterial Deoxyribonucleic acid in the groove binding mode. In vivo trials showed that compound C2 was highly effective against rice leaf blight (51.97-56.69%), with activity superior to those of bismerthiazol (40.7-43.4%) and thiodiazole copper (30.2-37.1%). Our study provides strong evidence to support the development of phenothiazine derivatives into pesticide candidates.
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Affiliation(s)
- Wu-Bin Shao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Rong-Shuang Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jiao Meng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiao-Kang Lv
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hong-Mei Xiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wan-Lin Xiao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhi-Bing Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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5
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Smola-Dmochowska A, Lewicka K, Macyk A, Rychter P, Pamuła E, Dobrzyński P. Biodegradable Polymers and Polymer Composites with Antibacterial Properties. Int J Mol Sci 2023; 24:ijms24087473. [PMID: 37108637 PMCID: PMC10138923 DOI: 10.3390/ijms24087473] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Antibiotic resistance is one of the greatest threats to global health and food security today. It becomes increasingly difficult to treat infectious disorders because antibiotics, even the newest ones, are becoming less and less effective. One of the ways taken in the Global Plan of Action announced at the World Health Assembly in May 2015 is to ensure the prevention and treatment of infectious diseases. In order to do so, attempts are made to develop new antimicrobial therapeutics, including biomaterials with antibacterial activity, such as polycationic polymers, polypeptides, and polymeric systems, to provide non-antibiotic therapeutic agents, such as selected biologically active nanoparticles and chemical compounds. Another key issue is preventing food from contamination by developing antibacterial packaging materials, particularly based on degradable polymers and biocomposites. This review, in a cross-sectional way, describes the most significant research activities conducted in recent years in the field of the development of polymeric materials and polymer composites with antibacterial properties. We particularly focus on natural polymers, i.e., polysaccharides and polypeptides, which present a mechanism for combating many highly pathogenic microorganisms. We also attempt to use this knowledge to obtain synthetic polymers with similar antibacterial activity.
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Affiliation(s)
- Anna Smola-Dmochowska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
| | - Kamila Lewicka
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Alicja Macyk
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Rychter
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
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6
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Gao R, Li X, Xue M, Shen N, Wang M, Zhang J, Cao C, Cai J. Development of lipidated polycarbonates with broad-spectrum antimicrobial activity. Biomater Sci 2023; 11:1840-1852. [PMID: 36655904 PMCID: PMC10848156 DOI: 10.1039/d2bm01995g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Antimicrobial resistance is a global challenge owing to the lack of discovering effective antibiotic agents. Antimicrobial polymers containing the cationic groups and hydrophobic groups which mimic natural host-defense peptides (HDPs) show great promise in combating bacteria. Herein, we report the synthesis of lipidated polycarbonates bearing primary amino groups and hydrophobic moieties (including both the terminal long alkyl chain and hydrophobic groups in the sequences) by ring-opening polymerization. The hydrophobic/hydrophilic group ratios were adjusted deliberately and the lengths of the alkyl chains at the end of the polymers were modified to achieve the optimized combination for the lead polymers, which exhibited potent and broad-spectrum bactericidal activity against a panel of Gram-positive and Gram-negative bacteria. The polymers only showed very limited hemolytic activity, demonstrating their excellent selectivity. Comprehensive analyses using biochemical and biophysical assays revealed the strong interaction between the polymers and bacteria membranes. Moreover, the polymers also showed strong biofilm inhibition activity and did not readily induce antibiotic resistance. Our results suggest that lipidated polycarbonates could be a new class of antimicrobial agents.
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Affiliation(s)
- Ruixuan Gao
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Xuming Li
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Menglin Xue
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Ning Shen
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Minghui Wang
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Jingyao Zhang
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Chuanhai Cao
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
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7
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Makvandi P, Song H, Yiu CKY, Sartorius R, Zare EN, Rabiee N, Wu WX, Paiva-Santos AC, Wang XD, Yu CZ, Tay FR. Bioengineered materials with selective antimicrobial toxicity in biomedicine. Mil Med Res 2023; 10:8. [PMID: 36829246 PMCID: PMC9951506 DOI: 10.1186/s40779-023-00443-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/31/2023] [Indexed: 02/26/2023] Open
Abstract
Fungi and bacteria afflict humans with innumerous pathogen-related infections and ailments. Most of the commonly employed microbicidal agents target commensal and pathogenic microorganisms without discrimination. To distinguish and fight the pathogenic species out of the microflora, novel antimicrobials have been developed that selectively target specific bacteria and fungi. The cell wall features and antimicrobial mechanisms that these microorganisms involved in are highlighted in the present review. This is followed by reviewing the design of antimicrobials that selectively combat a specific community of microbes including Gram-positive and Gram-negative bacterial strains as well as fungi. Finally, recent advances in the antimicrobial immunomodulation strategy that enables treating microorganism infections with high specificity are reviewed. These basic tenets will enable the avid reader to design novel approaches and compounds for antibacterial and antifungal applications.
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Affiliation(s)
- Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Materials Interfaces, Pontedera, 56025, Italy. .,The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China.
| | - Hao Song
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Rossella Sartorius
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), 80131, Naples, Italy
| | | | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia.,Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, 6150, Australia
| | - Wei-Xi Wu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Xiang-Dong Wang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University Shanghai Medical College, Shanghai, 200032, China
| | - Cheng-Zhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Franklin R Tay
- The Graduate School, Augusta University, Augusta, GA, 30912, USA.
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8
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Teng P, Shao H, Huang B, Xie J, Cui S, Wang K, Cai J. Small Molecular Mimetics of Antimicrobial Peptides as a Promising Therapy To Combat Bacterial Resistance. J Med Chem 2023; 66:2211-2234. [PMID: 36739538 DOI: 10.1021/acs.jmedchem.2c00757] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Clinically, antibiotics are widely used to treat infectious diseases; however, excessive drug abuse and overuse exacerbate the prevalence of drug-resistant bacterial pathogens, making the development of novel antibiotics extremely difficult. Antimicrobial peptide (AMP) is one of the most promising candidates for overcoming bacterial resistance owing to its unique structure and mechanism of action. This study examines the development of small molecular mimetics of AMPs over the past two decades. These mimetics can selectively disrupt membranes, which are the characteristic antibacterial mechanism of AMPs. In addition, the advantages and disadvantages of small AMP mimetics are discussed. The small molecular mimetics of AMPs are anticipated to garner interest and investment in discovering new antibiotics. This Perspective will assist in revitalizing the golden age of antibiotics in the current era of combating bacterial resistance.
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Affiliation(s)
- Peng Teng
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Haodong Shao
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Bo Huang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
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9
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Liu D, Xi Y, Yu S, Yang K, Zhang F, Yang Y, Wang T, He S, Zhu Y, Fan Z, Du J. A polypeptide coating for preventing biofilm on implants by inhibiting antibiotic resistance genes. Biomaterials 2023; 293:121957. [PMID: 36549042 DOI: 10.1016/j.biomaterials.2022.121957] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/12/2022] [Accepted: 12/11/2022] [Indexed: 12/14/2022]
Abstract
Aging population has been boosting the need for orthopedic implants. However, biofilm has been a major obstacle for orthopedic implants due to its insensitivity to antibiotics and tendency to drive antimicrobial resistance. Herein, an antibacterial polypeptide coating with excellent in vivo adhesive capacity was prepared to prevent implants from forming biofilms and inducing acquired antibiotic resistance. A peptide-based copolymer, poly[phenylalanine10-stat-lysine12]-block-3,4-dihydroxy-l-phenylalanine [Poly(Phe10-stat-Lys12)-DOPA] was modularly designed, where poly(Phe10-stat-Lys12) is antibacterial polypeptide with high antibacterial activity, and DOPA provides strong adhesion in both wet and dry microenvironments. Meanwhile, compared to traditional "graft-onto" methods, this antibacterial coating can be facilely achieved by immersing Titanium substrates into antibacterial polypeptide solution for 5 min at room temperature. The poly(Phe10-stat-Lys12)-DOPA polymer showed good antibacterial activity with minimum inhibitory concentrations against S. aureus and E. coli of 32 and 400 μg/mL, respectively. Compared to obvious antimicrobial resistance of S. aureus after continuous treatment with vancomycin, this antibacterial coating doesn't drive antimicrobial resistance upon long-term utilization. Transcriptome sequencing and qPCR tests further confirmed that the antibacterial coating was able to inhibit the expression of multiple peptide resistance factor (mprF) and lipoteichoic acid modification D-alanylation genes (dltB and dltC) that can increase the net positive charge of bacterial cell wall to induce the resistance to cationic antimicrobial peptides. In vivo experiments confirmed that this poly(Phe10-stat-Lys12)-DOPA coating can both effectively prevent biofilm formation through surface contact sterilization and avoid local and systemic infections. Overall, we proposed a facile method for preparing antibacterial orthopedic implants with longer indwelling time and without inducing antimicrobial resistance by coating a polypeptide-based polymer on the implants.
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Affiliation(s)
- Danqing Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China; Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Yuejing Xi
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Shunzhi Yu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Kexin Yang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Fan Zhang
- Department of Oral Implantology, Stomatological Hospital and Dental School of Tongji University, Shanghai Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, China
| | - Yuying Yang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Tianlong Wang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Shisheng He
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yunqing Zhu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China; Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China.
| | - Zhen Fan
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China; Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China.
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China; Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China.
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10
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Abstract
Pathogenic microorganisms are considered to a major threat to human health, impinging on multiple sectors including hospitals, dentistry, food storage and packaging, and water contamination. Due to the increasing levels of antimicrobial resistance shown by pathogens, often caused by long-term abuse or overuse of traditional antimicrobial drugs, new approaches and solutions are necessary. In this area, antimicrobial polymers are a viable solution to combat a variety of pathogens in a number of contexts. Indeed, polymers with intrinsic antimicrobial activities have long been an intriguing research area, in part, due to their widespread natural abundance in materials such as chitin, chitosan, carrageen, pectin, and the fact that they can be tethered to surfaces without losing their antimicrobial activities. In addition, since the discovery of the strong antimicrobial activity of some synthetic polymers, much work has focused on revealing the most effective structural elements that give rise to optimal antimicrobial properties. This has often been synthesis targeted, with the generation of either new polymers or the modification of natural antimicrobial polymers with the addition of antimicrobial enhancing modalities such as quaternary ammonium or guanidinium groups. In this review, the growing number of polymers showing intrinsic antimicrobial properties from the past decade are highlighted in terms of synthesis; often based on post-synthesis modification and their utilization. This includes as surface coatings, for example on medical devices, such as intravascular catheters, orthopaedic implants and contact lenses, or directly as antibacterial agents (specifically as eye drops). Surface functionalisation with inherently antimicrobial polymers is highlighted and has been achieved via various techniques, including surface-bound initiators allowing RAFT or ATRP surface-based polymerization, or via physical immobilization such as by layer-by-layer techniques. This article also covers the mechanistic modes of action of intrinsic antimicrobial polymers against bacteria, viruses, or fungi.
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Affiliation(s)
- Meltem Haktaniyan
- EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK.
| | - Mark Bradley
- EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK.
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11
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Zhen JB, Yi J, Ding HH, Yang KW. Self-Assembled Cationic Nanoparticles Combined with Curcumin against Multidrug-Resistant Bacteria. ACS OMEGA 2022; 7:29909-29922. [PMID: 36061679 PMCID: PMC9434756 DOI: 10.1021/acsomega.2c02855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
The overuse of antibiotics exacerbates the development of antibiotic-resistant bacteria, threatening global public health, while most traditional antibiotics act on specific targets and sterilize through chemical modes. Therefore, it is a desperate need to design novel therapeutics or extraordinary strategies to overcome resistant bacteria. Herein, we report a positively charged nanocomposite PNs-Cur with a hydrodynamic diameter of 289.6 nm, which was fabricated by ring-opening polymerization of ε-caprolactone and Z-Lys-N-carboxyanhydrides (NCAs), and then natural curcumin was loaded onto the PCL core of PNs with a nanostructure through self-assembly, identified through UV-vis, and characterized by scanning electron microscopy (SEM) and dynamic light scattering (DLS). Especially, the self-assembly dynamics of PNs was simulated through molecular modeling to confirm the formation of a core-shell nanostructure. Biological assays revealed that PNs-Cur possessed broad-spectrum and efficient antibacterial activities against both Gram-positive and Gram-negative bacteria, including drug-resistant clinical bacteria and fungus, with MIC values in the range of 8-32 μg/mL. Also, in vivo evaluation showed that PNs-Cur exhibited strong antibacterial activities in infected mice. Importantly, the nanocomposite did not indeed induce the emergence of drug-resistant bacterial strains even after 21 passages, especially showing low toxicity regardless of in vivo or in vitro. The study of the antibacterial mechanism indicated that PNs-Cur could indeed destruct membrane potential, change the membrane potential, and cause the leakage of the cytoplasm. Concurrently, the released curcumin further plays a bactericidal role, eventually leading to bacterial irreversible apoptosis. This unique bacterial mode that PNs-Cur possesses may be the reason why it is not easy to make the bacteria susceptible to easily produce drug resistance. Overall, the constructed PNs-Cur is a promising antibacterial material, which provides a novel strategy to develop efficient antibacterial materials and combat increasingly prevalent bacterial infections.
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Affiliation(s)
- Jian Bin Zhen
- Department
of Materials Engineering, Taiyuan Institute
of Technology, Taiyuan 030008, China
| | - Jiajia Yi
- School
of Materials Science and Engineering, North
University of China,Taiyuan 030051, China
| | - Huan Huan Ding
- Key
Laboratory of Synthetic and Natural Functional Molecule Chemistry
of Ministry of Education, the Chemical Biology Innovation Laboratory,
College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ke-Wu Yang
- Key
Laboratory of Synthetic and Natural Functional Molecule Chemistry
of Ministry of Education, the Chemical Biology Innovation Laboratory,
College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
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12
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Lin ZI, Tsai HL, Liu GL, Lu XH, Cheng PW, Chi PL, Wang CK, Tsai TH, Wang CC, Yang JHC, Ko BT, Chen CK. Preparation of CO 2 -based Cationic Polycarbonate/Polyacrylonitrile Nanofibers with an Optimal Fibrous Microstructure for Antibacterial Applications. Macromol Biosci 2022; 22:e2200178. [PMID: 35902381 DOI: 10.1002/mabi.202200178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/24/2022] [Indexed: 11/12/2022]
Abstract
Utilizing CO2 as one of the monomer resource, poly(vinylcyclohexene carbonates) (PVCHCs) are used as the precursor for preparing cationic PVCHCs (CPVCHCs) via thiol-ene click functionalization. Through the functionalization, CPVCHC-43 with a tertiary amine density of 43% relative to the backbone is able to display a significantly antibacterial ability against Staphylococcus aureus (S. aureus). Blending CPVCHC-43 with polyacrylonitrile (PAN), CPVCHC/PAN nanofiber meshes (NFMs) have been successfully prepared by electrospinning. More importantly, two crucial fibrous structural factors including CPVCHC/PAN weight ratio and fiber diameter have been systematically investigated for the effects on the antibacterial performance of the NFMs. Sequentially, a quaternization treatment has been employed on the NFMs with an optimal fibrous structure to enhance the antibacterial ability. The resulting quaternized NFMs have demonstrated the great biocidal effects against Gram-positive and Gram-negative bacteria. Moreover, the excellent biocompatibility of the quaternized NFMs have also been thoroughly evaluated and verified. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Han-Lin Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Xie-Hong Lu
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Pei-Wen Cheng
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan.,Department of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Pei-Ling Chi
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan
| | - Chih-Kuang Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Tzu-Hsien Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Chih-Chia Wang
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan, 33509, Taiwan.,System Engineering and Technology Program, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jason Hsiao Chun Yang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
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13
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Membrane-active amino acid-coupled polyetheramine derivatives with high selectivity and broad-spectrum antibacterial activity. Acta Biomater 2022; 142:136-148. [PMID: 35158080 DOI: 10.1016/j.actbio.2022.02.009] [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: 09/29/2021] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 11/21/2022]
Abstract
Membrane active antimicrobial peptide mimics have been considered as promising alternatives to antibiotics, which interact with bacterial cell membranes to combat bacteria and avoid the emergence of multidrug-resistant bacteria. Herein, a series of star-shaped and membrane-active cationic polyetheramides derived from amino acids, were synthesized via condensation of amino acids and polyetheamine (T403). The antibacterial and anti-biofilm activitives as well as the biocompatibility of these amino acids derived polyetheramides (AAPEAs) were investigated in detail. The star-shaped AAPEAs showed high-efficient and broad-spectrum antibacterial activity against the Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species (ESKAPE) pathogens. In addition, the antibacterial activity was significantly affected by the type of amino acid. L-Trp-T403, which was obtained from L-tryptophan and polyetheramine, exhibited the best antibacterial activity with the minimum inhibitory concentration (MIC) of 1 µg/mL against methicillin-resistant S. aureus (MRSA). Time-kill kinetics and multi-passage resistance tests experiments indicated that L-Trp-T403 could rapidly kill bacteria within 1 h. This compound also showed potent antibacterial activity against bacteria over many passages. Moreover, the AAPEAs exhibited outstanding stability and long-term antibacterial activity in complex mammalian body fluids, as well as good biocompatibility, low hemolytic activity, slight toxicity for mammalian cell (L929) and low in vivo toxicity. The antibacterial activity of L-Trp-T403 was found to be based on the disruption of bacterial membranes, which leads to the leakage of the internal cytoplasm. The AAPEAs possessed high antibacterial and anti-biofilm activity, thus, they are promising to be used as long-term and biofilm-disrupting antimicrobial agents. STATEMENT OF SIGNIFICANCE: The growing epidemic of MDR-bacteria is becoming a severe public health threat. Here, a series of amino acids derived polyetheramides (AAPEAs) with a star-shaped polyether amide scaffold was synthesized. The star-shaped AAPEAs displayed broad-spectrum antibacterial activity against Gram-positive, Gram-negative bacteria and drug-resistant bacteria MRSA. Notably, the star-shaped AAPEAs were stable under plasma conditions and showed outstanding stability and long-term antibacterial activity in various complex mammalian fluids. Moreover, these star-shaped AAPEAs not only inhibited the formation of biofilms but also disrupted the established biofilms. Furthermore, the membrane-active AAPEAs eradicated bacteria via the fast membrane lytic mechanism, thus plausibly overcoming the MDR effect. These results demonstrate that membrane-active AAPEAs can serve as emerging long-term and biofilm-disrupting antimicrobial agents to treat biofilm-related infections.
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14
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Choudhury M, Bindra HS, Singh K, Singh AK, Nayak R. Antimicrobial polymeric composites in consumer goods and healthcare sector: A healthier way to prevent infection. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mousam Choudhury
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | | | - Karishma Singh
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | - Alok Kumar Singh
- School of Biotechnology Sher‐e‐Kashmir University of Agricultural Science and Technology of Jammu Jammu and Kashmir India
| | - Ranu Nayak
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
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15
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Zhang F, Zhong C, Yao J, Zhang J, Zhang T, Li B, Gou S, Ni J. Antimicrobial peptides–antibiotics combination: An effective strategy targeting drug‐resistant Gram‐negative bacteria. Pept Sci (Hoboken) 2022. [DOI: 10.1002/pep2.24261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fangyan Zhang
- School of Pharmacy Lanzhou University Lanzhou China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences Lanzhou University Lanzhou China
| | - Chao Zhong
- School of Pharmacy Lanzhou University Lanzhou China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences Lanzhou University Lanzhou China
| | - Jia Yao
- The First Hospital Lanzhou University Lanzhou China
| | - Jingying Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences Lanzhou University Lanzhou China
| | | | - Beibei Li
- School of Pharmacy Lanzhou University Lanzhou China
| | - Sanhu Gou
- School of Pharmacy Lanzhou University Lanzhou China
| | - Jingman Ni
- School of Pharmacy Lanzhou University Lanzhou China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences Lanzhou University Lanzhou China
- State Key Laboratory of Quality Research in Chinese Medicine Macau University of Science and Technology Taipa Macao China
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16
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Qian Y, Deng S, Cong Z, Zhang H, Lu Z, Shao N, Bhatti SA, Zhou C, Cheng J, Gellman SH, Liu R. Secondary Amine Pendant β-Peptide Polymers Displaying Potent Antibacterial Activity and Promising Therapeutic Potential in Treating MRSA-Induced Wound Infections and Keratitis. J Am Chem Soc 2022; 144:1690-1699. [PMID: 35007085 DOI: 10.1021/jacs.1c10659] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Interest in developing antibacterial polymers as synthetic mimics of host defense peptides (HPDs) has accelerated in recent years to combat antibiotic-resistant bacterial infections. Positively charged moieties are critical in defining the antibacterial activity and eukaryotic toxicity of HDP mimics. Most examples have utilized primary amines or guanidines as the source of positively charged moieties, inspired by the lysine and arginine residues in HDPs. Here, we explore the impact of amine group variation (primary, secondary, or tertiary amine) on the antibacterial performance of HDP-mimicking β-peptide polymers. Our studies show that a secondary ammonium is superior to either a primary ammonium or a tertiary ammonium as the cationic moiety in antibacterial β-peptide polymers. The optimal polymer, a homopolymer bearing secondary amino groups, displays potent antibacterial activity and the highest selectivity (low hemolysis and cytotoxicity). The optimal polymer displays potent activity against antibiotic-resistant bacteria and high therapeutic efficacy in treating MRSA-induced wound infections and keratitis as well as low acute dermal toxicity and low corneal epithelial cytotoxicity. This work suggests that secondary amines may be broadly useful in the design of antibacterial polymers.
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Affiliation(s)
- Yuxin Qian
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuai Deng
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zihao Cong
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haodong Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ziyi Lu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ning Shao
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Sonia Abid Bhatti
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Cong Zhou
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Samuel H Gellman
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Runhui Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China.,Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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17
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Tsukamoto M, Zappala E, Caputo GA, Kikuchi JI, Najarian K, Kuroda K, Yasuhara K. Mechanistic Study of Membrane Disruption by Antimicrobial Methacrylate Random Copolymers by the Single Giant Vesicle Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9982-9995. [PMID: 34378943 DOI: 10.1021/acs.langmuir.1c01047] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cationic amphiphilic polymers have been a platform to create new antimicrobial materials that act by disrupting bacterial cell membranes. While activity characterization and chemical optimization have been done in numerous studies, there remains a gap in our knowledge on the antimicrobial mechanisms of the polymers, which is needed to connect their chemical structures and biological activities. To that end, we used a single giant unilamellar vesicle (GUV) method to identify the membrane-disrupting mechanism of methacrylate random copolymers. The copolymers consist of random sequences of aminoethyl methacrylate and methyl (MMA) or butyl (BMA) methacrylate, with low molecular weights of 1600-2100 g·mol-1. GUVs consisting of an 8:2 mixture of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) and 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1'-rac-glycerol), sodium salt (POPG) and those with only 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) were prepared to mimic the bacterial (Escherichia coli) or mammalian membranes, respectively. The disruption of bacteria and mammalian cell membrane-mimetic lipid bilayers in GUVs reflected the antimicrobial and hemolytic activities of the copolymers, suggesting that the copolymers act by disrupting cell membranes. The copolymer with BMA formed pores in the lipid bilayer, while that with MMA caused GUVs to burst. Therefore, we propose that the mechanism is inherent to the chemical identity or properties of hydrophobic groups. The copolymer with MMA showed characteristic sigmoid curves of the time course of GUV burst. We propose a new kinetic model with a positive feedback loop in the insertion of the polymer chains in the lipid bilayer. The novel finding of alkyl-dependent membrane-disrupting mechanisms will provide a new insight into the role of hydrophobic groups in the optimization strategy for antimicrobial activity and selectivity.
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Affiliation(s)
- Manami Tsukamoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
| | - Emanuele Zappala
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan 48109-2800, United States
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey 08028, United States
| | - Jun-Ichi Kikuchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
| | - Kayvan Najarian
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan 48109-2800, United States
| | - Kenichi Kuroda
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Kazuma Yasuhara
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
- Center for Digital Green-innovation, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
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18
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Dey R, Mukherjee S, Barman S, Haldar J. Macromolecular Nanotherapeutics and Antibiotic Adjuvants to Tackle Bacterial and Fungal Infections. Macromol Biosci 2021; 21:e2100182. [PMID: 34351064 DOI: 10.1002/mabi.202100182] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/13/2021] [Indexed: 12/19/2022]
Abstract
The escalating rise in the population of multidrug-resistant (MDR) pathogens coupled with their biofilm forming ability has struck the global health as nightmare. Alongwith the threat of aforementioned menace, the sluggish development of new antibiotics and the continuous deterioration of the antibiotic pipeline has stimulated the scientific community toward the search of smart and innovative alternatives. In near future, membrane targeting antimicrobial polymers, inspired from antimicrobial peptides, can stand out significantly to combat against the MDR superbugs. Many of these amphiphilic polymers can form nanoaggregates through self-assembly with superior and selective antimicrobial efficacy. Additionally, these macromolecular nanoaggregrates can be utilized to engineer smart antibiotic-delivery system for on-demand drug-release, exploiting the infection site's micoenvironment. This strategy substantially increases the local concentration of antibiotics and reduces the associated off-target toxicity. Furthermore, amphiphilc macromolecules can be utilized to rejuvinate obsolete antibiotics to tackle the drug-resistant infections. This review article highlights the recent developments in macromolecular architecture to design numerous nanostructures with broad-spectrum antimicrobial activity, their application in fabricating smart drug delivery systems and their efficacy as antibiotic adjuvants to circumvent antimicrobial resistance. Finally, the current challenges and future prospects are briefly discussed for further exploration and their practical application in clinical settings.
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Affiliation(s)
- Rajib Dey
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, Karnataka, 560064, India
| | - Sudip Mukherjee
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, Karnataka, 560064, India
| | - Swagatam Barman
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, Karnataka, 560064, India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, Karnataka, 560064, India.,Antimicrobial Research Laboratory, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, Karnataka, 560064, India
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19
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Responsive Polymeric Nanoparticles for Biofilm-infection Control. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2610-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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20
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Gou S, Li B, Ouyang X, Ba Z, Zhong C, Zhang T, Chang L, Zhu Y, Zhang J, Zhu N, Zhang Y, Liu H, Ni J. Novel Broad-Spectrum Antimicrobial Peptide Derived from Anoplin and Its Activity on Bacterial Pneumonia in Mice. J Med Chem 2021; 64:11247-11266. [PMID: 34180670 DOI: 10.1021/acs.jmedchem.1c00614] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The emergence of multidrug-resistant bacteria has major issues for treating bacterial pneumonia. Currently, anoplin (GLLKRIKTLL-NH2) is a natural antimicrobial candidate derived from wasp venom. In this study, a series of new antimicrobial peptide (AMP) anoplin analogues were designed and synthesized. The relationship between their biological activities and their positive charge, hydrophobicity, amphipathicity, and secondary structure are described. The characteristic shared by these peptides is that positively charged amino acids and hydrophobic amino acids are severally arranged on the hydrophilic and hydrophobic surface of the α-helix to form a completely amphiphilic structure. To achieve ideal AMPs, below the range of the threshold of the cytotoxicity and hemolytic activity, their charges and hydrophobicity were increased as much. Among the new analogues, A-21 (KWWKKWKKWW-NH2) exhibited the greatest antimicrobial activity (geometric mean of minimum inhibitory concentrations = 4.76 μM) against all the tested bacterial strains, high bacterial cell selectivity in vitro, high effectiveness against bacterial pneumonia in mice infected with Klebsiella pneumoniae, and low toxicity in mice (LD50 = 82.01 mg/kg). A-21 exhibited a potent bacterial membrane-damaging mechanism and lipopolysaccharide-binding ability. These data provide evidence that A-21 is a promising antimicrobial candidate for the treatment of bacterial pneumonia.
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Affiliation(s)
- Sanhu Gou
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China.,Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Beibei Li
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Xu Ouyang
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zufang Ba
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chao Zhong
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Tianyue Zhang
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - LinLin Chang
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuewen Zhu
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Jingying Zhang
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Ningyi Zhu
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Yun Zhang
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Hui Liu
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Jingman Ni
- Institute of Pharmaceutics, School of Pharmacy, Lanzhou University, Lanzhou 730000, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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21
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Ansari I, Singh P, Mittal A, Mahato RI, Chitkara D. 2,2-Bis(hydroxymethyl) propionic acid based cyclic carbonate monomers and their (co)polymers as advanced materials for biomedical applications. Biomaterials 2021; 275:120953. [PMID: 34218051 DOI: 10.1016/j.biomaterials.2021.120953] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/26/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
Designing grafted biodegradable polymers with tailored multi-functional properties is one of the most researched fields with extensive biomedical applications. Among many biodegradable polymers, polycarbonates have gained much attention due to their ease of synthesis, high drug loading, and excellent biocompatibility profiles. Among various monomers, 2,2-bis(hydroxymethyl) propionic acid (bis-MPA) derived cyclic carbonate monomers have been extensively explored in terms of their synthesis as well as their polymerization. Since the late 90s, significant advancements have been made in the design of bis-MPA derived cyclic carbonate monomers as well as in their reaction schemes. Currently, bis-MPA derived polycarbonates have taken a form of an entire platform with a multitude of applications, the latest being in the field of nanotechnology, targeted drug, and nucleic acid delivery. The present review outlines an up to date developments that have taken place in the last two decades in the design, synthesis, and biomedical applications of bis-MPA derived cyclic carbonates and their (co)polymers.
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Affiliation(s)
- Imran Ansari
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS Pilani), Vidya Vihar Campus, Pilani, 333 031, Rajasthan, India
| | - Prabhjeet Singh
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS Pilani), Vidya Vihar Campus, Pilani, 333 031, Rajasthan, India
| | - Anupama Mittal
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS Pilani), Vidya Vihar Campus, Pilani, 333 031, Rajasthan, India
| | - Ram I Mahato
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Deepak Chitkara
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS Pilani), Vidya Vihar Campus, Pilani, 333 031, Rajasthan, India.
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Regiospecific vs. non regiospecific click azide-alkyne polymerization: In vitro study of water-soluble antibacterial poly(amide aminotriazole)s. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 125:112113. [PMID: 33965117 DOI: 10.1016/j.msec.2021.112113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/14/2021] [Accepted: 04/09/2021] [Indexed: 11/23/2022]
Abstract
Novel linear cationic poly(amide aminotriazole)s (PATnD) with secondary amine groups in the backbone were obtained by using azide-alkyne 1,3-dipolar cycloaddition reactions: metal- and solvent-free (thermal conditions, PATTnD) or copper(I)-catalyzed (Sharpless conditions, PATCnD). PATnD were investigated in vitro against strains of E. coli, P. aeruginosa, S. aureus, and S. epidermidis. Hemolytic activity was tested using human red blood cells (hRBC), and very low or no hemolytic activity was observed. The cytotoxicity of PATnD polymers against Human Gingival Fibroblasts (HGnF) cells was concentration-dependent, and significant differences between PATT1D and PATC1D were observed. The ability of these polymers to induce resistance against both Gram-positive and Gram-negative bacteria was also assessed. Studied bacterial strains acquired resistance to catalytic polymers (PATCnD) in initial passages meanwhile resistance to thermal polymers (PATTnD) appears in later passages, being the increase of the minimum inhibitory concentration lower than in catalytic polymers. This result, together with the higher biocidal capacity of thermal polymers compared to catalytic ones, seems to suggest an influence of the regiospecificity of the polymers on their antibacterial characteristics. This study also demonstrates that PAT1D polymers, which do not appear to have strong hydrophobic residues, can exert significant antimicrobial activity against Gram-positive bacteria such as S. epidermidis. This pair of polymers, PATC1D and PATT1D, displays the greatest antimicrobial activity while not causing significant hemolysis along with the lowest susceptibility for resistance development of the polymers evaluated.
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Zhu N, Zhong C, Liu T, Zhu Y, Gou S, Bao H, Yao J, Ni J. Newly designed antimicrobial peptides with potent bioactivity and enhanced cell selectivity prevent and reverse rifampin resistance in Gram-negative bacteria. Eur J Pharm Sci 2021; 158:105665. [DOI: 10.1016/j.ejps.2020.105665] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/18/2020] [Accepted: 11/26/2020] [Indexed: 01/10/2023]
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Yu W, Maynard E, Chiaradia V, Arno MC, Dove AP. Aliphatic Polycarbonates from Cyclic Carbonate Monomers and Their Application as Biomaterials. Chem Rev 2021; 121:10865-10907. [DOI: 10.1021/acs.chemrev.0c00883] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Yu
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Edward Maynard
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Viviane Chiaradia
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Maria C. Arno
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
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Kanth S, Nagaraja A, Puttaiahgowda YM. Polymeric approach to combat drug-resistant methicillin-resistant Staphylococcus aureus. JOURNAL OF MATERIALS SCIENCE 2021; 56:7265-7285. [PMID: 33518799 PMCID: PMC7831626 DOI: 10.1007/s10853-021-05776-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/03/2021] [Indexed: 05/10/2023]
Abstract
ABSTRACT The current global death rate has threatened humans due to increase in deadly unknown infections caused by pathogenic microorganisms. On the contrary, the emergence of multidrug-resistant bacteria is also increasing which is leading to elevated lethality rate worldwide. Development of drug-resistant bacteria has become one of the daunting global challenges due to failure in approaching to combat against them. Methicillin-resistant Staphylococcus aureus (MRSA) is one of those drug-resistant bacteria which has led to increase in global mortality rate causing various lethal infections. Polymer synthesis can be one of the significant approaches to combat MRSA by fabricating polymeric coatings to prevent the spread of infections. This review provides last decade information in the development of various polymers against MRSA. GRAPHICAL ABSTRACT
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Affiliation(s)
- Shreya Kanth
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104 India
| | - Akshatha Nagaraja
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104 India
| | - Yashoda Malgar Puttaiahgowda
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104 India
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26
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Dong Y, Zhao S, Wang C, Liu W, Zhang Y, Deng L, Zhang J, Huang P, Wang W, Dong A. Combating drug-resistant bacterial infection using biodegradable nanoparticles assembled from comb-like polycarbonates grafted with amphiphilic polyquaternium. J Mater Chem B 2021; 9:357-365. [PMID: 33245311 DOI: 10.1039/d0tb02233k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bacterial infection is a serious clinical threat. The misuse of antibiotics has already resulted in the emergence of antibiotic-resistant strains of pathogenic bacteria. Efficient membrane-destructive antibacterial agents are considered as an alternative, promising solution against bacterial infection. Herein, we prepared a new type of comb-like cationic, polyethylene glycol (PEG) block polycarbonates with polyquaternium arms (G-CgQAs). The amphiphilic G-CgQAs could self-assemble into about 60 nm sized nanoparticles (NPs) with positive charges (20~30 mV). G-CgQA-3 NPs with an appropriate hydrophobic-hydrophilic balance in the polyquaternium arms showed antibacterial activity against Gram-negative, Gram-positive, and drug-resistant strains at low concentrations (MIC 64-128 μg mL-1) and low hemolysis (HC50 > 2000 μg mL-1). In vivo anti-infection tests indicated G-CgQA-3 NPs could highly inhibit the growth of vancomycin-resistant bacteria by spraying on wounds. Collectively, G-CgQA NPs hold great promise for the prevention of infection, serving as new antibacterial agents. This study also highlights the significance of a hydrophobic block in positive polyquaternium arms to facilitate the antibacterial activity of cationic, quaternized polymers. The design of comb-like amphiphilic cationic polycarbonates provides a new method for manufacturing antibacterial nano-agents.
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Affiliation(s)
- Yanliang Dong
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Shuyue Zhao
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Changrong Wang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Wenshuai Liu
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Liandong Deng
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Anjie Dong
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Yuan Q, Zhao Y, Zhang Z, Tang Y. On-Demand Antimicrobial Agent Release from Functionalized Conjugated Oligomer-Hyaluronic Acid Nanoparticles for Tackling Antimicrobial Resistance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:257-265. [PMID: 33378174 DOI: 10.1021/acsami.0c19283] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Controllable drug release is promising for fighting against antimicrobial resistance, which is a critical threat to human health worldwide. Herein, new hyaluronidase-responsive conjugated oligo(thiophene ethynylene) (OTE)-covalently modified hyaluronic acid (OTE-HA) nanoparticles for on-demand release of antimicrobial agents are reported. The synthesis of amphiphilic OTE-HA was carried out by esterification reaction. The resulting macromolecules were self-assembled in water to form nanoparticles, in which the hydrophobic OTE section, as bactericides, formed "cores" and the hydrophilic hyaluronic acid (HA) formed "shells". The OTE-HA nanoparticles avoid bactericide premature leakage and effectively block the dark cytotoxicity of the OTE section, possessing excellent biocompatibility. Using methicillin-resistant Staphylococcus aureus (MRSA) as an example, hyaluronidase, largely secreted by MRSA, can in situ trigger the release of OTE via hydrolyzing OTE-HA nanoparticles into fragments, even disaccharides linked with OTE. Importantly, the OTE section could effectively break cell membranes, leading to bacterial death. The half-maximal inhibitory concentration of the nanoparticles against MRSA is 3.3 μg/mL. The great antibacterial activity of OTE-HA nanoparticles against Gram-positive bacteria Streptococcus pneumoniae further confirms the controllable bactericide delivery mechanism. OTE-HA nanoparticles coated on a surface can also effectively inhibit the growth of bacteria, which holds a remarkable promise in biomedical applications. Therefore, this work provides a favorable strategy of on-demand and in situ drug release for sterilization and defeating antimicrobial resistance.
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Affiliation(s)
- Qiong Yuan
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yantao Zhao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Ziqi Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yanli Tang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
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28
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Deng P, Chen J, Yao L, Zhang P, Zhou J. Thymine-modified chitosan with broad-spectrum antimicrobial activities for wound healing. Carbohydr Polym 2021; 257:117630. [PMID: 33541656 DOI: 10.1016/j.carbpol.2021.117630] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 12/30/2022]
Abstract
Avoiding wound infections is a major challenge in wound care management, and new materials are urgently needed to address these problems. Herein, four water-soluble thymine-modified chitosan (TC) derivatives with the degree of substitution (DS) ranging from 0.23 to 0.62 were synthesized and freeze-dried to obtain porous sponge dressings. TC derivatives had broad-spectrum antibacterial activities against gram-negative bacteria, gram-positive bacteria, fungi, drug-resistance bacteria, Pseudomonas aeruginosa and Acinetobacter baumannii. Especially, the antioxidant and antibacterial properties of TC derivatives increased with increasing DS. Furthermore, TC derivatives showed excellent biocompatibility and blood compatibility. TC sponges could significantly accelerate the wound healing process than gauze and chitosan sponge. The histological analysis and immunohistochemical staining showed that the wounds treated with TC sponges displayed fewer inflammatory cells, and faster regeneration of epithelial tissue, collagen deposition and new blood vessel formation speed. Therefore, TC sponges can shed new light for wound dressing design.
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Affiliation(s)
- Pengpeng Deng
- Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, and Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Juanjuan Chen
- Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China
| | - Lichao Yao
- Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China
| | - Pingan Zhang
- Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China.
| | - Jinping Zhou
- Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, and Department of Chemistry, Wuhan University, Wuhan 430072, China.
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29
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Chiloeches A, Funes A, Cuervo-Rodríguez R, López-Fabal F, Fernández-García M, Echeverría C, Muñoz-Bonilla A. Biobased polymers derived from itaconic acid bearing clickable groups with potent antibacterial activity and negligible hemolytic activity. Polym Chem 2021. [DOI: 10.1039/d1py00098e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We report the synthesis of new biobased polymers derived from itaconic acid with excellent antibacterial activity against Gram-positive bacteria and very low hemotoxicity.
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Affiliation(s)
- A. Chiloeches
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Universidad Nacional de Educación a Distancia (UNED)
- 28015 Madrid
| | - A. Funes
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - R. Cuervo-Rodríguez
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - F. López-Fabal
- Hospital Universitario de Móstoles C/Dr. Luis Montes
- Madrid
- Spain
- Facultad de Ciencias Experimentales
- Universidad Francisco de Vitoria
| | - M. Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC)
- Madrid
| | - C. Echeverría
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC)
- Madrid
| | - A. Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC)
- Madrid
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30
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Ding HH, Chigan JZ, Zhen JB, Liu L, Xu YS, Chen C, Yang KW. Cholesteroled polymer (Chol-b-Lys)-based nanoparticles (CL-NPs) confer antibacterial efficacy without resistance. NEW J CHEM 2021. [DOI: 10.1039/d1nj03944j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nanoparticles CL-NPs assembled by polymer Chol-b-Lys confer antibacterial efficacy without resistance.
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Affiliation(s)
- Huan-Huan Ding
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Jia-Zhu Chigan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Jian-Bin Zhen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Lu Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Yin-Sui Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Cheng Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ke-Wu Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
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31
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Ding HH, Zhao MH, Zhai L, Zhen JB, Sun LY, Chigan JZ, Chen C, Li JQ, Gao H, Yang KW. A quinine-based quaternized polymer: a potent scaffold with bactericidal properties without resistance. Polym Chem 2021. [DOI: 10.1039/d0py01751e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quinine-based quaternized polymer confers bactericidal efficacy by destroying the membrane structure of bacteria.
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32
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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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Wang M, Gao R, Zheng M, Sang P, Li C, Zhang E, Li Q, Cai J. Development of Bis-cyclic Imidazolidine-4-one Derivatives as Potent Antibacterial Agents. J Med Chem 2020; 63:15591-15602. [DOI: 10.1021/acs.jmedchem.0c00171] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Minghui Wang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
| | - Mengmeng Zheng
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
| | - Peng Sang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
| | - Chunpu Li
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - En Zhang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology (Ministry of Education), Zhengzhou University, Zhengzhou 450001, PR China
| | - Qi Li
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States
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Salas-Ambrosio P, Tronnet A, Verhaeghe P, Bonduelle C. Synthetic Polypeptide Polymers as Simplified Analogues of Antimicrobial Peptides. Biomacromolecules 2020; 22:57-75. [PMID: 32786537 DOI: 10.1021/acs.biomac.0c00797] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Antimicrobial peptides (AMPs) are naturally occurring macromolecules made of amino acids that are potent broad-spectrum antibiotics with potential as novel therapeutic agents. This review aims to summarize the fundamental principles concerning the structure and mechanism of action of these AMPs, in order to guide the design of polymeric analogues that organic chemistry can generate. Among those simplified analogues, this review particularly focuses on those made of amino acids called polypeptide polymers: they are showing great potential by providing one of the best biomimetic and bioactive structures for further biomaterials science applications.
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Affiliation(s)
| | - Antoine Tronnet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse 31400, France
| | - Pierre Verhaeghe
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse 31400, France
| | - Colin Bonduelle
- Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
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35
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Ghosh R, Malhotra M, Sathe RR, Jayakannan M. Biodegradable Polymer Theranostic Fluorescent Nanoprobe for Direct Visualization and Quantitative Determination of Antimicrobial Activity. Biomacromolecules 2020; 21:2896-2912. [PMID: 32539360 DOI: 10.1021/acs.biomac.0c00653] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report a biodegradable fluorescent theranostic nanoprobe design strategy for simultaneous visualization and quantitative determination of antibacterial activity for the treatment of bacterial infections. Cationic-charged polycaprolactone (PCL) was tailor-made through ring-opening polymerization methodology, and it was self-assembled into well-defined tiny 5.0 ± 0.1 nm aqueous nanoparticles (NPs) having a zeta potential of +45 mV. Excellent bactericidal activity at 10.0 ng/mL concentration was accomplished in Gram-negative bacterium Escherichia coli (E. coli) while maintaining their nonhemolytic nature in mice red blood cells (RBC) and their nontoxic trend in wild-type mouse embryonic fibroblast cells with a selectivity index of >104. Electron microscopic studies are evident of the E. coli membrane disruption mechanism by the cationic NP with respect to their high selectivity for antibacterial activity. Anionic biomarker 8-hydroxy-pyrene-1,3,6-trisulfonic acid (HPTS) was loaded in the cationic PCL NP via electrostatic interaction to yield a new fluorescent theranostic nanoprobe to accomplish both therapeutics and diagnostics together in a single nanosystem. The theranostic NP was readily degradable by a bacteria-secreted lipase enzyme as well as by lysosomal esterase enzymes at the intracellular compartments in <12 h and support their suitability for biomedical application. In the absence of bactericidal activity, the theranostic nanoprobe functions exclusively as a biomarker to exhibit strong green-fluorescent signals in live E. coli. Once it became active, the theranostic probe induces membrane disruption on E. coli, which enabled the costaining of nuclei by red fluorescent propidium iodide. As a result, live and dead bacteria could be visualized via green and orange signals (merging of red+green), respectively, during the course of the antibacterial activity by the theranostic probe. This has enabled the development of a new image-based fluorescence assay to directly visualize and quantitatively estimate the real-time antibacterial activity. Time-dependent bactericidal activity was coupled with selective photoexcitation in a confocal microscope to demonstrate the proof-of-concept of the working principle of a theranostic probe in E. coli. This new theranostic nanoprobe creates a new platform for the simultaneous probing and treating of bacterial infections in a single nanodesign, which is very useful for a long-term impact in healthcare applications.
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Wang M, Gao R, Sang P, Odom T, Zheng M, Shi Y, Xu H, Cao C, Cai J. Dimeric γ-AApeptides With Potent and Selective Antibacterial Activity. Front Chem 2020; 8:441. [PMID: 32596202 PMCID: PMC7304243 DOI: 10.3389/fchem.2020.00441] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/27/2020] [Indexed: 12/30/2022] Open
Abstract
Over the past few decades, the emergence of antibiotic resistance developed by life-threatening bacteria has become increasingly prevalent. Thus, there is an urgent demand to develop novel antibiotics capable of mitigating this trend. Herein, we report a series of dimeric γ-AApeptide derivatives as potential antibiotic agents with limited toxicity and excellent selectivity against Gram-positive strains. Among them, compound 2 was identified to have the best MICs without inducing drug resistance, even after exposure to MRSA for 20 passages. Time-kill kinetics and mechanistic studies suggested that 2 could mimic host-defense peptides (HDPs) and rapidly eradicate MRSA within 2 hours through disturbing the bacteria membrane. Meanwhile, biofilm formation was successfully inhibited even at a low concentration. Taken together, these results suggested the great potential of dimeric γ-AApeptide derivatives as antibacterial agents.
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Affiliation(s)
- Minghui Wang
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Peng Sang
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Timothy Odom
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Mengmeng Zheng
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Yan Shi
- Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Hai Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, China
| | - Chuanhai Cao
- College of Pharmacy, University of South Florida, Tampa, FL, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, FL, United States
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Cho CA, Liang C, Perera J, Brimble MA, Swift S, Jin J. Guanidinylated Amphiphilic Polycarbonates with Enhanced Antimicrobial Activity by Extending the Length of the Spacer Arm and Micelle Self-Assembly. Macromol Biosci 2020; 20:e2000065. [PMID: 32459065 DOI: 10.1002/mabi.202000065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/01/2020] [Indexed: 01/23/2023]
Abstract
Nine guanidinylated amphiphilic polycarbonates are rationally designed and synthesized. Each polymer has the same biodegradable backbone but different side groups. The influence of the hydrophobic/hydrophilic effect on antimicrobial activities and cytotoxicity is systematically investigated. The results verify that tuning the length of the spacer arm between the cationic guanidine group and the polycarbonate backbone is an efficient design strategy to alter the hydrophobic/hydrophilic balance without changing the cationic charge density. A spacer arm of six methylene units (CH2 )6 shows the best antimicrobial activity (minimum inhibitory concentration, MIC = 40 µg mL-1 against Escherichia coli, MIC = 20 µg mL-1 against Staphylococcus aureus, MIC = 40 µg mL-1 against Candida albicans) with low hemolytic activity (HC50 > 2560 µg mL-1 ). Furthermore, the guanidinylated polycarbonates exhibit the ability to self-assemble and present micelle-like nanostructure due to their intrinsic amphiphilic macromolecular structure. Transmission electron microscopy and dynamic light scattering measurements confirm polymer micelle formation in aqueous solution with sizes ranging from 82 to 288 nm.
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Affiliation(s)
- Chloe A Cho
- School of Chemical Sciences, University of Auckland, Auckland, 1142, New Zealand
| | - Chao Liang
- School of Chemical Sciences, University of Auckland, Auckland, 1142, New Zealand
| | - Janesha Perera
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, 1142, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, Auckland, 1142, New Zealand
| | - Simon Swift
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, 1142, New Zealand
| | - Jianyong Jin
- School of Chemical Sciences, University of Auckland, Auckland, 1142, New Zealand
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Tan J, Tay J, Hedrick J, Yang YY. Synthetic macromolecules as therapeutics that overcome resistance in cancer and microbial infection. Biomaterials 2020; 252:120078. [PMID: 32417653 DOI: 10.1016/j.biomaterials.2020.120078] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023]
Abstract
Synthetic macromolecular antimicrobials have shown efficacy in the treatment of multidrug resistant (MDR) pathogens. These synthetic macromolecules, inspired by Nature's antimicrobial peptides (AMPs), mitigate resistance by disrupting microbial cell membrane or targeting multiple intracellular proteins or genes. Unlike AMPs, these polymers are less prone to degradation by proteases and are easier to synthesize on a large scale. Recently, various studies have revealed that cancer cell membrane, like that of microbes, is negatively charged, and AMPs can be used as anticancer agents. Nevertheless, efforts in developing polymers as anticancer agents has remained limited. This review highlights the recent advancement in the development of synthetic biodegradable antimicrobial polymers (e.g. polycarbonates, polyesters and polypeptides) and anticancer macromolecules including peptides and polymers. Additionally, strategies to improve their in vivo bioavailability and selectivity towards bacteria and cancer cells are examined. Lastly, future perspectives, including use of artificial intelligence or machine learning, in the development of antimicrobial and anticancer macromolecules are discussed.
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Affiliation(s)
- Jason Tan
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Joyce Tay
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - James Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, CA, 95120, United States
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore.
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Shankar S, Singh G, Rahim JU, Qayum A, Sharma PR, Katoch M, Rai R. Investigation of α/γ hybrid peptide self-assembled structures with antimicrobial and antibiofilm properties. J Pept Sci 2020; 26:e3243. [PMID: 32153090 DOI: 10.1002/psc.3243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/31/2020] [Accepted: 02/10/2020] [Indexed: 12/13/2022]
Abstract
The present work describes the synthesis and characterization of α/γ hybrid peptides, Boc-Phe-γ4 -Phe-Val-OMe, P1; Boc-Ala-γ4 -Phe-Val-OMe, P2; and Boc-Leu-γ4 -Phe-Val-OMe, P3 together with the formation of self-assembled structures formed by these hybrid peptides in dimethyl sulfoxide (DMSO)/water (1:1). The self-assembled structures were characterized by infrared (IR) spectroscopy, circular dichroism (CD), and scanning electron microscopy (SEM). Further, α/γ hybrid peptide self-assembled structures were evaluated for antibacterial properties. Among all, the self-assembled peptide P1 exhibited the antimicrobial activity against Escherichia coli and Klebsiella pneumoniae, while self-assembled peptide P3 inhibited the biofilms of Salmonella typhimurium and Pseudomonas aeruginosa. In this study, we have shown the significance of self-assembled structures formed from completely hydrophobic α/γ hybrid peptides in exploring the antibacterial properties together with biofilm inhibition.
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Affiliation(s)
- Sudha Shankar
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gurpreet Singh
- Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Junaid Ur Rahim
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Arem Qayum
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Parduman R Sharma
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Meenu Katoch
- Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rajkishor Rai
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Lu C, Wen T, Zheng M, Liu D, Quan G, Pan X, Wu C. Poly(Ethylene Glycol) Crosslinked Multi-Armed Poly(l-Lysine) with Encapsulating Capacity and Antimicrobial Activity for the Potential Treatment of Infection-Involved Multifactorial Diseases. Pharmaceutics 2020; 12:pharmaceutics12010047. [PMID: 31935837 PMCID: PMC7022689 DOI: 10.3390/pharmaceutics12010047] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/23/2019] [Accepted: 01/03/2020] [Indexed: 02/05/2023] Open
Abstract
With the development of modern medical technology, common diseases usually can be treated by traditional medicines and their formulation, while diseases with multiple etiologies still remain a great challenge in clinic. Nanoformulation was widely explored to address this problem. However, due to limited drug loading space of nanocarriers, co-delivery strategy usually fails to achieve sufficient loading of multiple drugs simultaneously. In this research, we explored the potential of poly(ethylene glycol) (PEG) crosslinked alternating copolymers MPLL-alt-PEG as both an anionic drug carrier and antimicrobial agent. The high cationic charge density of multi-armed poly(l-lysine) (MPLL) segments in MPLL-alt-PEG could endow the electrostatic encapsulation of anionic model drugs through the formation of polyion complex micelles with a MPLL/drug complex core and crosslinked PEG outer shell, enabling pH-sensitive drug release. Meanwhile, the MPLL-alt-PEG copolymer exhibits a broad spectrum of antimicrobial activities against various clinically relevant microorganisms with low hemolytic activity. Studies on antibacterial mechanism revealed that MPLL-alt-PEG attacked bacteria through the membrane disruption mechanism which is similar to that of typical antimicrobial peptides. Taken together, the present study shed light on the possibility of endowing a polymeric carrier with therapeutic effect and thus offered a promising strategy for achieving a comprehensive treatment of bacterial infection-involved multifactorial diseases.
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Affiliation(s)
- Chao Lu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ting Wen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- Correspondence: (T.W.); (G.Q.); Tel.: +86-20-39943115 (G.Q.)
| | - Maochao Zheng
- Department of chemistry, Shantou University Medical College, Shantou 515041, China
| | - Daojun Liu
- Department of chemistry, Shantou University Medical College, Shantou 515041, China
| | - Guilan Quan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
- Correspondence: (T.W.); (G.Q.); Tel.: +86-20-39943115 (G.Q.)
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Chuanbin Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
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41
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Zhao MH, Zhen JB, Yang KW, Liu Y, Li JQ, Shi SQ. Quaternized polymer-based nanostructures confer antimicrobial efficacy against multidrug-resistant bacteria. NEW J CHEM 2020. [DOI: 10.1039/c9nj06173h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Illustration of the antibacterial mechanism of the NPs.
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Affiliation(s)
- Mu-Han Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
| | - Jian-Bin Zhen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
| | - Ke-Wu Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
| | - Ya Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
| | - Jia-Qi Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
| | - Su-Qing Shi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Chemical Biology Innovation Laboratory
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710127
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42
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Singh S, Wang M, Gao R, Teng P, Odom T, Zhang E, Xu H, Cai J. Lipidated α/Sulfono-α-AA heterogeneous peptides as antimicrobial agents for MRSA. Bioorg Med Chem 2020; 28:115241. [PMID: 31812324 PMCID: PMC10523340 DOI: 10.1016/j.bmc.2019.115241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/20/2019] [Accepted: 11/25/2019] [Indexed: 12/27/2022]
Abstract
Though antibiotics have been used for decades to treat bacterial infections, there is a great need for new treatment methods. Bacteria are becoming resistant to conventional antibiotics, as is the case with Methicillin resistant Staphylococcus aureus (MRSA). Herein we report the design of a series of lipidated α/Sulfono-α-AA heterogeneous peptides as mimics for Host Defense Peptides (HDPs). Utilizing fluorescence microscopy and depolarization techniques, our compounds demonstrate the ability to kill Gram-positive bacteria through cell membrane disruption. This mechanism of action makes it difficult for bacteria to develop resistance. Further time kill studies and hemolytic assays have also proven these compounds to be efficient in their ability to eradicate bacteria cells while remaining non-toxic to human red blood cells. This new class of peptidomimetics shows promise for the future antibiotic treatment of MRSA.
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Affiliation(s)
- Sylvia Singh
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States
| | - Minghui Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States
| | - Peng Teng
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States
| | - Timothy Odom
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States
| | - En Zhang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Hai Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620, United States.
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43
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Zhen JB, Kang PW, Zhao MH, Yang KW. Silver Nanoparticle Conjugated Star PCL-b-AMPs Copolymer as Nanocomposite Exhibits Efficient Antibacterial Properties. Bioconjug Chem 2019; 31:51-63. [DOI: 10.1021/acs.bioconjchem.9b00739] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian-Bin Zhen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, the Chemical Biology Innovation Laboratory, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Peng-Wei Kang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, the Chemical Biology Innovation Laboratory, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Mu-Han Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, the Chemical Biology Innovation Laboratory, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ke-Wu Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, the Chemical Biology Innovation Laboratory, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
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44
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Barman S, Konai MM, Samaddar S, Haldar J. Amino Acid Conjugated Polymers: Antibacterial Agents Effective against Drug-Resistant Acinetobacter baumannii with No Detectable Resistance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33559-33572. [PMID: 31424189 DOI: 10.1021/acsami.9b09016] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An optimum hydrophilic/hydrophobic balance has been recognized as a crucial parameter in designing cationic polymers that mimic antimicrobial peptides (AMPs). To date, this balance was achieved either by hydrophilicity variation through altering the nature and the number of cationic charges or by hydrophobicity modulation through incorporation of alkyl groups of different chain lengths. However, how the hydrophobicity variation through AMPs' building blocks-amino acids-influences the antibacterial efficacy of AMP-mimicking cationic polymers has rarely been explored. Toward this goal, herein we report a class of amino acid conjugated polymers (ACPs) with tunable antibacterial activity through a simple post-polymer-functionalization strategy. Our polymeric design comprised a permanent cationic charge in every repeating unit, whereby the hydrophobicity was tuned through incorporation of different amino acids. Our results revealed that the amino acid alteration has a strong influence on antibacterial efficacy. Upon increasing the amino acid side-chain hydrophobicity, both the antibacterial activity (against broad spectrum of bacteria) and toxicity increased. However, the distinct feature of this class of polymers was their good activity against Acinetobacter baumannii-the top most critical pathogen according to WHO, which has created an alarming situation worldwide, causing the majority of infections in humans. A nontoxic (no hemolysis even at 1000 μg/mL) ACP including a glycine residue (ACP-1 (Gly)) showed very good activity (MIC = 8-16 μg/mL) against both drug-sensitive and drug-resistant strains of A. baumannii, including clinical isolates. This polymer not only was rapidly bactericidal against growing planktonic A. baumannii but also killed nondividing stationary-phase cells instantaneously (<2 min). Moreover, it eradicated the established biofilm formed by drug-resistant A. baumannii clinical isolates. No propensity for bacterial resistance development against this polymer was seen even after 14 continuous passages. Taken together, the results highlight that hydrophobicity modulation through incorporation of amino acids in cationic polymers will provide a significant opportunity in designing new ACPs with potent antibacterial activity and minimum toxicity toward mammalian cells. More importantly, the excellent anti-A. baumannii efficacy of the optimized lead polymer indicates its immense potential for being developed as therapeutic agent.
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Affiliation(s)
- Swagatam Barman
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur , Bengaluru 560064 , Karnataka , India
| | - Mohini Mohan Konai
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur , Bengaluru 560064 , Karnataka , India
| | - Sandip Samaddar
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur , Bengaluru 560064 , Karnataka , India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur , Bengaluru 560064 , Karnataka , India
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45
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Zhang Q, Ma P, Xie J, Zhang S, Xiao X, Qiao Z, Shao N, Zhou M, Zhang W, Dai C, Qian Y, Qi F, Liu R. Host defense peptide mimicking poly-β-peptides with fast, potent and broad spectrum antibacterial activities. Biomater Sci 2019; 7:2144-2151. [PMID: 30882803 DOI: 10.1039/c9bm00248k] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microbial infections have always been serious challenges to human health considering that antibiotics almost inevitably induce microbial resistance. Therefore, it is urgent to develop a new antibacterial agent that is active against drug-resistant bacteria and is less susceptible to microbial resistance. In this work, a series of host defense peptide (HDP) mimicking antibacterial poly-β-peptides were synthesized, characterized and evaluated for their biological activities. The best poly-β-peptide within this study (20 : 80 Bu : DM) displays potent and broad spectrum antibacterial activity against antibiotic-resistant super bugs and low toxicity toward mammalian cells. Moreover, these poly-β-peptides are bactericidal and kill bacteria very fast within 5 min. An antimicrobial resistance test demonstrated that bacteria develop no resistance toward the selected poly-β-peptides even over 1000 generations. Our studies demonstrate that random copolymers of heterochiral poly-β-peptides, without the need for defined secondary structures, can mimic the antimicrobial HDP. These results imply the potential application of these poly-β-peptides as new antimicrobial agents to tackle drug resistant antimicrobial infections.
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Affiliation(s)
- Qiang Zhang
- State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
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46
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Peng C, Vishwakarma A, Mankoci S, Barton HA, Joy A. Structure–Activity Study of Antibacterial Poly(ester urethane)s with Uniform Distribution of Hydrophobic and Cationic Groups. Biomacromolecules 2019; 20:1675-1682. [DOI: 10.1021/acs.biomac.9b00029] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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47
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Xu Y, Zhang K, Reghu S, Lin Y, Chan-Park MB, Liu XW. Synthesis of Antibacterial Glycosylated Polycaprolactones Bearing Imidazoliums with Reduced Hemolytic Activity. Biomacromolecules 2019; 20:949-958. [DOI: 10.1021/acs.biomac.8b01577] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yuan Xu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Republic of Singapore
| | - Kaixi Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Republic of Singapore
| | - Sheethal Reghu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Republic of Singapore
| | - Yichao Lin
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Republic of Singapore
| | - Mary B. Chan-Park
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Republic of Singapore
- Centre for Antimicrobial
Bioengineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Republic of Singapore
| | - Xue-Wei Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Republic of Singapore
- Centre for Antimicrobial
Bioengineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Republic of Singapore
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48
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Zhou X, He J, Zhou C. Strategies from nature: polycaprolactone-based mimetic antimicrobial peptide block copolymers with low cytotoxicity and excellent antibacterial efficiency. Polym Chem 2019. [DOI: 10.1039/c8py01394b] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PCL16-b-Kn diblock copolymers exhibit excellent antibacterial activities and low cytotoxicity. Meanwhile, they act by the pore-forming bactericidal mechanism without inducement of drug resistance.
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Affiliation(s)
- Xinyu Zhou
- School of Materials Science and Engineering
- Tongji University
- Shanghai
- China
| | - Jing He
- Department of Anatomy and Neurobiology
- Tongji University School of Medicine
- Shanghai
- China
| | - Chuncai Zhou
- School of Materials Science and Engineering
- Tongji University
- Shanghai
- China
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49
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Fukushima K, Kishi K, Saito K, Takakuwa K, Hakozaki S, Yano S. Modulating bioactivities of primary ammonium-tagged antimicrobial aliphatic polycarbonates by varying length, sequence and hydrophobic side chain structure. Biomater Sci 2019; 7:2288-2296. [DOI: 10.1039/c9bm00440h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly antimicrobial, biocompatible, and fast biodegradable polycarbonate has been developed by incorporating primary ammonium and monoether side chains.
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Affiliation(s)
- Kazuki Fukushima
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Kohei Kishi
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Keita Saito
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Kazuki Takakuwa
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Shunta Hakozaki
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Shigekazu Yano
- Graduate School of Science and Engineering
- Yamagata University
- Japan
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Dai Y, Zhang X. Cationic polycarbonates via ring-opening polymerization: design, synthesis, and applications. Polym Chem 2019. [DOI: 10.1039/c8py01365a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthetic methods and applications of cationic polycarbonates via ring-opening polymerization are highlighted.
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Affiliation(s)
- Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| | - Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
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