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Qian Y, Yang D, Zhu J, Huang S, Chen S, Zeng J, Xu J, He J, Zhou C. Mimics of Host Defense Peptides Derived from Dendronized Polylysines for Antibacterial and Anticancer Therapy. ACS Macro Lett 2024:1156-1163. [PMID: 39158183 DOI: 10.1021/acsmacrolett.4c00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
Bacteria in tumor microenvironments promote carcinogenesis and trigger complications, suggesting the significance of intervening in bacterial growth in cancer treatment. Here, dendrimer-derived mimics (DMs) of host defense peptides (HDPs) were designed for antibacterial and anticancer therapy, which feature a dendronized polylysine core and polycaprolactone arms. DMs displayed not only remarkable activities against Staphylococcus aureus and human lung cancer cells, but also exceptional selectivity. The membranolytic mechanism revealed by morphology analysis explained their low susceptibility to induce resistance. Further, the optimized DM inhibited tumor growth in the subcutaneous tumor model when administered via intraperitoneal injection and exhibited negligible toxicity to tissues. Overall, we combined the superiority of dendrimers and the mechanism from HDPs to design agents with dual antibacterial and anticancer activities that possess great potential for clinical oncology therapy.
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Affiliation(s)
- Yusheng Qian
- School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Danjing Yang
- Department of Pathology and Pathophysiology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, 500 Zhennan Road, Shanghai 200092, China
| | - Jiaming Zhu
- Department of Pathology and Pathophysiology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, 500 Zhennan Road, Shanghai 200092, China
| | - Shuting Huang
- School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Sijin Chen
- School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jing Zeng
- Department of Pathology and Pathophysiology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, 500 Zhennan Road, Shanghai 200092, China
| | - Jin Xu
- Laboratory Animal Center of Tongji University, Tongji University, 500 Zhennan Road, Shanghai 200092, China
| | - Jing He
- Department of Pathology and Pathophysiology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, 500 Zhennan Road, Shanghai 200092, China
| | - Chuncai Zhou
- School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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2
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Fabrication of Nanostructured Polycaprolactone (PCL) Film Using a Thermal Imprinting Technique and Assessment of Antibacterial Function for Its Application. Polymers (Basel) 2022; 14:polym14245527. [PMID: 36559894 PMCID: PMC9788332 DOI: 10.3390/polym14245527] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
In the use of the medical devices, it is essential to prevent the attachment of bacteria to the device surface or to kill the attached bacteria. To kill bacteria, many researchers have used antibiotics or studied nanostructure-based antibacterial surfaces, which rely on mechanical antibacterial methods. Several polymers are widely used for device fabrication, one of which is polycaprolactone (PCL). PCL is biocompatible, biodegradable, easy to fabricate using 3D printing, relatively inexpensive and its quality is easily controlled; therefore, there are various approaches to its use in bio-applications. In addition, it is an FDA-approved material, so it is often used as an implantable material in the human body. However, PCL has no inherent antibacterial function, so it is necessary to develop antibacterial functions in scaffold or film-based PCL medical devices. In this study, process parameters for nanopillar fabrication were established through a simple thermal imprinting method with PCL. Finally, a PCL film with a flexible and transparent nanopillar structure was produced, and the mechano-bactericidal potential was demonstrated using only one PCL material. PCL with nanopillars showed bactericidal ability against Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis) bacteria cultured on its surface that resulted in membrane damage and death due to contact with nanopillars. Additionally, bacteriostatic results were shown to inhibit bacterial growth and activity of Staphylococcus aureus (S. aureus) on PCL nanostructured columns. The fabricated nanopillar structure has confirmed that mechanically induced antibacterial function and can be applied to implantable medical devices.
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Bioactivity of star-shaped polycaprolactone/chitosan composite hydrogels for biomaterials. Int J Biol Macromol 2022; 212:420-431. [PMID: 35623458 DOI: 10.1016/j.ijbiomac.2022.05.139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/05/2022] [Accepted: 05/19/2022] [Indexed: 11/21/2022]
Abstract
Recently, our group reported the synthesis and fabrication of composite hydrogels of chitosan (CS) and star-shaped polycaprolactone (stPCL). The co-crosslink of modified stPCL with carboxyl at the end chain (stPCL-COOH) provided good mechanical properties and stability to the composite hydrogels. This research presents the bioactivities of composite hydrogels showing a potential candidate to develop biomaterials such as wound dressing and bone tissue engineering. The bioactivities were the antibacterial activity, cell viability, skin irritation, decomposability, and ability to attach ions for apatite nucleation. The results showed that all the composite hydrogels were completely decomposed within 2 days. The composite hydrogels had better antibacterial activity and higher efficiency to Gram-negative (Escherichia coli) than to Gram-positive (Staphylococcus epidermidis) bacteria. The composite hydrogels were studied for cell viability based on MTT assay and skin irritation on rabbit skin. The results indicated high cell survival more than 80% and no skin irritation. In addition, the results showed that calcium and phosphorous were preferentially attached to the composite hydrogel surface to grow apatite crystal (Ca/P ratio 1.86) compared to attaching to the chitosan hydrogel (Ca/P ratio 1.48) in 21 days of testing.
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Eom KH, Li S, Lee EG, Kim JH, Kim JR, Kim I. Synthetic Polypeptides with Cationic Arginine Moieties Showing High Antimicrobial Activity in Similar Mineral Environments to Blood Plasma. Polymers (Basel) 2022; 14:polym14091868. [PMID: 35567037 PMCID: PMC9104764 DOI: 10.3390/polym14091868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023] Open
Abstract
Translocation of cell-penetrating peptides is promoted by incorporated arginine or other guanidinium groups. However, relatively little research has considered the role of these functional groups on antimicrobial peptide activity. A series of cationic linear-, star- and multi-branched-poly(L-arginine-co-L-phenylalanine) have been synthesized via the ring-opening copolymerizations of corresponding N-carboxyanhydride monomers followed by further modifications using the N-heterocyclic carbene organocatalyst. All the polymers are characterized by the random coiled microstructure. Antibacterial efficacy, tested by the gram-positive B. subtilis bacteria and the gram-negative E. coli bacteria, was sensitive to the structure and relative composition of the copolymer and increased in the order of linear- < star- < multi-branched structure. The multi-branched-p[(L-arginine)23-co-(L-phenylalanine)7]8 polymer showed the best antibacterial property with the lowest minimum inhibitory concentration values of 48 μg mL−1 for E. coli and 32 μg mL−1 for B. subtilis. The efficacy was prominent for B. subtilis due to the anionic nature of its membrane. All of the resultant arginine moiety-containing polypeptides showed excellent blood compatibility. The antibiotic effect of the copolymers with arginine moieties was retained even in the environment bearing Ca2+, Mg2+, and Na+ ions similar to blood plasma. The cationic arginine-bearing copolypeptides were also effective for the sterilization of naturally occurring sources of water such as lakes, seas, rain, and sewage, showing a promising range of applicability.
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Affiliation(s)
- Kuen Hee Eom
- School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Geumjeong-gu, Busan 46241, Korea; (K.H.E.); (S.L.); (E.G.L.); (J.R.K.)
| | - Shuwei Li
- School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Geumjeong-gu, Busan 46241, Korea; (K.H.E.); (S.L.); (E.G.L.); (J.R.K.)
| | - Eun Gyeong Lee
- School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Geumjeong-gu, Busan 46241, Korea; (K.H.E.); (S.L.); (E.G.L.); (J.R.K.)
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University, Busandaehak-ro, Mulgeum-eup, Yangsan-si 50612, Korea;
| | - Jung Rae Kim
- School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Geumjeong-gu, Busan 46241, Korea; (K.H.E.); (S.L.); (E.G.L.); (J.R.K.)
| | - Il Kim
- School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Geumjeong-gu, Busan 46241, Korea; (K.H.E.); (S.L.); (E.G.L.); (J.R.K.)
- Correspondence:
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5
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Saha S, Prajapati DG, Ratrey P, Mishra A. Co-delivery nanosystem of Epigallocatechin Gallate and Rutin for anticancer and antibacterial activities. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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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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7
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Kumar A. Self Assemblies of Poly(ether ether ketone) Block Copolymers for Biomedical Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202102238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Avneesh Kumar
- International Center for Materials Science JNCASR, Jakkur Bangalore 560064
- Center for Environmentally Friendly Materials 27-1 Muroran Institute of Technology Muroran Hokkaido 050-8585 Japan
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8
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Zheng M, Pan M, Zhang W, Lin H, Wu S, Lu C, Tang S, Liu D, Cai J. Poly(α-l-lysine)-based nanomaterials for versatile biomedical applications: Current advances and perspectives. Bioact Mater 2021; 6:1878-1909. [PMID: 33364529 PMCID: PMC7744653 DOI: 10.1016/j.bioactmat.2020.12.001] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 02/05/2023] Open
Abstract
Poly(α-l-lysine) (PLL) is a class of water-soluble, cationic biopolymer composed of α-l-lysine structural units. The previous decade witnessed tremendous progress in the synthesis and biomedical applications of PLL and its composites. PLL-based polymers and copolymers, till date, have been extensively explored in the contexts such as antibacterial agents, gene/drug/protein delivery systems, bio-sensing, bio-imaging, and tissue engineering. This review aims to summarize the recent advances in PLL-based nanomaterials in these biomedical fields over the last decade. The review first describes the synthesis of PLL and its derivatives, followed by the main text of their recent biomedical applications and translational studies. Finally, the challenges and perspectives of PLL-based nanomaterials in biomedical fields are addressed.
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Affiliation(s)
- Maochao Zheng
- Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
| | - Miao Pan
- Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
| | - Wancong Zhang
- The Second Affiliated Hospital of Shantou University Medical College, 69 Dongxiabei Road, Shantou, 515041, China
| | - Huanchang Lin
- Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
| | - Shenlang Wu
- Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
| | - Chao Lu
- College of Pharmacy, Jinan University, Guangzhou, 511443, China
| | - Shijie Tang
- The Second Affiliated Hospital of Shantou University Medical College, 69 Dongxiabei Road, Shantou, 515041, China
| | - Daojun Liu
- Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
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9
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Bhat R, Foster LL, Rani G, Vemparala S, Kuroda K. The function of peptide-mimetic anionic groups and salt bridges in the antimicrobial activity and conformation of cationic amphiphilic copolymers. RSC Adv 2021; 11:22044-22056. [PMID: 35480841 PMCID: PMC9034112 DOI: 10.1039/d1ra02730a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/15/2021] [Indexed: 12/19/2022] Open
Abstract
Herein we report the synthesis of ternary statistical methacrylate copolymers comprising cationic ammonium (amino-ethyl methacrylate: AEMA), carboxylic acid (propanoic acid methacrylate: PAMA) and hydrophobic (ethyl methacrylate: EMA) side chain monomers, to study the functional role of anionic groups on their antimicrobial and hemolytic activities as well as the conformation of polymer chains. The hydrophobic monomer EMA was maintained at 40 mol% in all the polymers, with different percentages of cationic ammonium (AEMA) and anionic carboxylate (PAMA) side chains, resulting in different total net charge for the polymers. The antimicrobial and hemolytic activities of the copolymer were determined by the net charge of +3 or larger, suggesting that there was no distinct effect of the anionic carboxylate groups on the antimicrobial and hemolytic activities of the copolymers. However, the pH titration and atomic molecular dynamics simulations suggest that anionic groups may play a strong role in controlling the polymer conformation. This was achieved via formation of salt bridges between cationic and anionic groups, transiently crosslinking the polymer chain allowing dynamic switching between compact and extended conformations. These results suggest that inclusion of functional groups in general, other than the canonical hydrophobic and cationic groups in antimicrobial agents, may have broader implications in acquiring functional structures required for adequate antimicrobial activity. In order to explain the implications, we propose a molecular model in which formation of intra-chain, transient salt bridges, due to the presence of both anionic and cationic groups along the polymer, may function as "adhesives" which facilitate compact packing of the polymer chain to enable functional group interaction but without rigidly locking down the overall polymer structure, which may adversely affect their functional roles.
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Affiliation(s)
- Rajani Bhat
- Department of Biologic and Materials Sciences & Prosthodontics, School of Dentistry, University of Michigan Ann Arbor Michigan 48109 USA
| | - Leanna L Foster
- Macromolecular Science and Engineering Center, University of Michigan Ann Arbor Michigan 48109 USA
| | - Garima Rani
- TIFR Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research Hyderabad 500046 India
| | - Satyavani Vemparala
- The Institute of Mathematical Sciences, C. I. T. Campus Taramani Chennai 600113 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Kenichi Kuroda
- Department of Biologic and Materials Sciences & Prosthodontics, School of Dentistry, University of Michigan Ann Arbor Michigan 48109 USA
- Macromolecular Science and Engineering Center, University of Michigan Ann Arbor Michigan 48109 USA
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Leong J, Yang C, Tan J, Tan BQ, Hor S, Hedrick JL, Yang YY. Combination of guanidinium and quaternary ammonium polymers with distinctive antimicrobial mechanisms achieving a synergistic antimicrobial effect. Biomater Sci 2021; 8:6920-6929. [PMID: 32959808 DOI: 10.1039/d0bm00752h] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The increasing emergence and spread of antimicrobial resistance are urgent and important global challenges today. The clinical pipeline is lacking in innovative drugs that avoid the development of drug resistance. Macromolecular antimicrobials kill bacteria and fungi through physical disruptions to the cell membrane, which is difficult for microbes to overcome. Recently, we reported antimicrobial polycarbonates that kill microbes via two different mechanisms. Polycarbonates functionalized with quaternary ammonium disrupted the lipid bilayer membrane of the microbes, while polycarbonates functionalized with guanidinium translocated the membrane and precipitated cytosolic components. We hypothesized that the combination of these two distinct mechanisms would result in a more than additive increase in antimicrobial efficacy. Block and random copolymers containing both cationic groups had similar minimum inhibitory concentrations (MICs) as the guanidinium homopolymer on 5 representatives of the ESKAPE pathogens. Interestingly, the random copolymer killed P. aeruginosa and A. baumannii more rapidly than the block copolymer and the guanidinium homopolymer with the same number of guanidinium groups. Like quaternary ammonium homopolymer, the copolymers killed the bacteria via a membrane-disruptive mechanism. Then, we simply mixed quaternary ammonium homopolymer and guanidinium homopolymer, and studied antimicrobial activity of the combination at various concentrations. Checkerboard assay results showed that the combination of the polymers, in general, achieved a synergistic or additive effect in inhibiting the growth of bacteria. At concentrations where it exibited a synergistic or additive effect in inhibiting bacterial growth, the combination killed the bacteria effectively (99%-99.9% killing efficiency) although the individual polymers at these concentrations did not exert bactericidal activity. Therefore, it is essential to have the two functional groups on separate molecules to provide synergism. This study provides a basic understanding of polymer design with different cationic groups.
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Affiliation(s)
- Jiayu Leong
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore.
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Luo H, Yin XQ, Tan PF, Gu ZP, Liu ZM, Tan L. Polymeric antibacterial materials: design, platforms and applications. J Mater Chem B 2021; 9:2802-2815. [PMID: 33710247 DOI: 10.1039/d1tb00109d] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Over the past decades, the morbidity and mortality caused by pathogen invasion remain stubbornly high even though medical care has increasingly improved worldwide. Besides, impacted by the ever-growing multidrug-resistant bacterial strains, the crisis owing to the abuse and misuse of antibiotics has been further exacerbated. Among the wide range of antibacterial strategies, polymeric antibacterial materials with diversified synthetic strategies exhibit unique advantages (e.g., their flexible structural design, processability and recyclability, tuneable platform construction, and safety) for extensive antibacterial fields as compared to low molecular weight organic or inorganic antibacterial materials. In this review, polymeric antibacterial materials are summarized in terms of four structure styles and the most representative material platforms to achieve specific antibacterial applications. The superiority and defects exhibited by various polymeric antibacterial materials are elucidated, and the design of various platforms to elevate their efficacy is also described. Moreover, the application scope of polymeric antibacterial materials is summarized with regard to tissue engineering, personal protection, and environmental security. In the last section, the subsequent challenges and direction of polymeric antibacterial materials are discussed. It is highly expected that this critical review will present an insight into the prospective development of antibacterial functional materials.
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Affiliation(s)
- Hao Luo
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China.
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12
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Yuan X, Wang C, Chen J, Shu X, Chai Y, Meng Z, Hou D, Li C, Meng Q. Oligo( para-phenylenes)s–Oligoarginine Conjugates as Effective Antibacterial Agents with High Plasma Stability and Low Hemolysis. ACS APPLIED BIO MATERIALS 2020; 3:8532-8541. [DOI: 10.1021/acsabm.0c00904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xingyi Yuan
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P. R. China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Chenhong Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Junyi Chen
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Xiaoyan Shu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P. R. China
| | - Yao Chai
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Zhao Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Dabin Hou
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P. R. China
| | - Chunju Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Qingbin Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
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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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14
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Pan M, Lu C, Zheng M, Zhou W, Song F, Chen W, Yao F, Liu D, Cai J. Unnatural Amino-Acid-Based Star-Shaped Poly(l-Ornithine)s as Emerging Long-Term and Biofilm-Disrupting Antimicrobial Peptides to Treat Pseudomonas aeruginosa-Infected Burn Wounds. Adv Healthc Mater 2020; 9:e2000647. [PMID: 32893500 DOI: 10.1002/adhm.202000647] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/23/2020] [Indexed: 12/28/2022]
Abstract
Peptide-based antimicrobial materials are recognized as promising alternatives to antibiotics to circumvent the emergence of antibiotic-resistant bacteria or to combat multiple resistant bacteria by targeting the bacterial cell membrane. The components and conformations of antimicrobial peptides are extensively explored to achieve broad-spectrum and effective antimicrobial activity. Here, star-shaped antimicrobial polypeptides are fabricated by employing homologs of poly(l-lysine)s (i.e., poly(l-ornithine)s, poly(l-lysine)s, and poly(l-α,ζ-diaminoheptylic acid)s) with the aim of modulating their charge/hydrophobicity balance and rationalizing their structure-antimicrobial property relationships. The in vitro antibacterial investigation reveals that unnatural amino-acid-based star-shaped poly(l-ornithine)s have remarkable proteolytic stability, excellent biofilm-disrupting capacity, and broad-spectrum antimicrobial activity, even against difficult-to-kill Gram-negative Pseudomonas aeruginosa. Furthermore, star-shaped poly(l-ornithine)s significantly reduce the microbial burden and improve the burn wound healing of mouse skin infected with P. aeruginosa. These results demonstrate that unnatural amino-acid-based star-shaped poly(l-ornithine)s can serve as emerging long-term and biofilm-disrupting antimicrobial agents to treat biofilm-related infections in burn, especially caused by notorious P. aeruginosa.
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Affiliation(s)
- Miao Pan
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Chao Lu
- College of Pharmacy Jinan University Guangzhou 511443 China
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Maochao Zheng
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Wen Zhou
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Fuling Song
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Weidong Chen
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Fen Yao
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Daojun Liu
- Department of Pharmacy Medical College Shantou University Shantou 515041 China
| | - Jianfeng Cai
- Department of Chemistry University of South Florida Tampa FL 33620 USA
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15
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Qian Y, Huang S, Li Y, Zhou C. Biocompatible antibacterial nanoparticles prepared by assembling polycaprolactone-lysine-dendrimers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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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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17
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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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18
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Zhou S, Ji H, Liu L, Feng S, Fu Y, Yang Y, Lü C. Mussel-inspired coordination functional polymer brushes-decorated rGO-stabilized silver nanoparticles composite for antibacterial application. Polym Chem 2020. [DOI: 10.1039/d0py00180e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A catechol-terminated coordination functional polymer-modified rGO supported AgNPs composite was fabricated. Grafted polymer brushes improve the material's hydrophilicity and dispersion stability of AgNPs on rGO, enhancing antibacterial activity.
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Affiliation(s)
- Shengnan Zhou
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
- Institute of Chemistry
| | - Haixun Ji
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
| | - Linjing Liu
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
| | - Sijia Feng
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
| | - Yuqin Fu
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
| | - Yu Yang
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Changli Lü
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
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19
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Qian Y, Zhou X, He J, Zhou C. Polycaprolactone-Based Mimetic Antimicrobial Peptide Copolymers Vesicles as an Effective Drug-Carrier for Cancer Therapy. Polymers (Basel) 2019; 11:E1783. [PMID: 31683611 PMCID: PMC6918241 DOI: 10.3390/polym11111783] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 12/24/2022] Open
Abstract
A novel series of amphiphilic mimicking antimicrobial peptide copolymers PCL16-b-Kn can assemble in water to form uniform vesicles. Transmission electron microscopy was used to observe the vesicular structure of the nanoparticles, and dynamic light scattering revealed their uniform size and narrow dispersion. Critical vesiculation concentrations were also tested, revealing that these vesicles can exist at low concentrations. Furthermore, in vitro and intracellular drug release of doxorubicin(DOX)-vesicles were conducted. These vesicles could encapsulate DOX and achieve efficient intracellular drug release. Overall, these copolymer vesicles exhibit potential application value as multifunctional drug-carrier systems with antibacterial capability in cancer therapy.
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Affiliation(s)
- Yusheng Qian
- School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
| | - Xinyu Zhou
- School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
| | - Jing He
- Department of Anatomy and Neurobiology, Tongji University School of Medicine, Shanghai 201804, China.
| | - Chuncai Zhou
- School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
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20
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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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21
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Datta LP, Dutta D, Chakraborty A, Das TK. Tyrosine based cationic acrylates as potent antimicrobial agents against shigellosis. Biomater Sci 2019; 7:2611-2622. [DOI: 10.1039/c8bm01588k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Design of tyrosine-based cationic polymers with antimicrobial activities.
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Affiliation(s)
- Lakshmi Priya Datta
- Department of Biochemistry and Biophysics
- University of Kalyani
- Kalyani-741235
- India
| | - Debanjan Dutta
- Department of Biochemistry and Biophysics
- University of Kalyani
- Kalyani-741235
- India
| | - Arpita Chakraborty
- Department of Biochemistry and Biophysics
- University of Kalyani
- Kalyani-741235
- India
| | - Tapan Kumar Das
- Department of Biochemistry and Biophysics
- University of Kalyani
- Kalyani-741235
- India
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