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Rampazzo R, Vavasori A, Ronchin L, Riello P, Marchiori M, Saorin G, Beghetto V. Enhanced Antibacterial Activity of Vancomycin Loaded on Functionalized Polyketones. Polymers (Basel) 2024; 16:1890. [PMID: 39000745 PMCID: PMC11244503 DOI: 10.3390/polym16131890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/17/2024] Open
Abstract
Today, polymeric drug delivery systems (DDS) appear as an interesting solution against bacterial resistance, having great advantages such as low toxicity, biocompatibility, and biodegradability. In this work, two polyketones (PK) have been post-functionalized with sodium taurinate (PKT) or potassium sulfanilate (PKSK) and employed as carriers for Vancomycin against bacterial infections. Modified PKs were easily prepared by the Paal-Knorr reaction and loaded with Vancomycin at a variable pH. All polymers were characterized by FT-IR, DSC, TGA, SEM, and elemental analysis. Antimicrobial activity was tested against Gram-positive Staphylococcus aureus ATCC 25923 and correlated to the different pHs used for its loading (between 2.3 and 8.8). In particular, the minimum inhibitory concentrations achieved with PKT and PKSK loaded with Vancomycin were similar, at 0.23 μg/mL and 0.24 μg/mL, respectively, i.e., six times lower than that with Vancomycin alone. The use of post-functionalized aliphatic polyketones has thus been demonstrated to be a promising way to obtain very efficient polymeric DDS.
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Affiliation(s)
- Rachele Rampazzo
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, 81031 Aversa, Italy
| | - Andrea Vavasori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Lucio Ronchin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Pietro Riello
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Martina Marchiori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Gloria Saorin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Valentina Beghetto
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Crossing S.r.l., Viale della Repubblica 193/b, 31100 Treviso, Italy
- Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi (CIRCC), Via C. Ulpiani 27, 701268 Bari, Italy
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2
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Li Z, Zhao Z, Chen S, Wu W, Jin Y, Mao J, Lin Y, Jiang Y. Chemically Tailored Single Atoms for Targeted and Light-Controlled Bactericidal Activity. Adv Healthc Mater 2024; 13:e2302480. [PMID: 38063347 DOI: 10.1002/adhm.202302480] [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: 08/07/2023] [Revised: 11/21/2023] [Indexed: 02/20/2024]
Abstract
Single-atom (SA) nanoparticles exhibit considerable potential in terms of photothermal properties for bactericidal applications. Nevertheless, the restricted efficacy of their targeted and controlled antibacterial activity has hindered their practical implementation. This study aims to overcome this obstacle by employing chemical modifications to tailor SAs, thereby achieving targeted and light-controlled antimicrobial effects. By conducting atomic-level modifications on palladium SAs using glutathione (GSH) and mercaptophenylboronic acid (MBA), their superior targeted binding capabilities toward Escherichia coli cells are demonstrated, surpassing those of SAs modified with cysteine (Cys). Moreover, these modified SAs effectively inhibit wound bacteria proliferation and promote wound healing in rats, without inducing noticeable toxicity to major organs under 808 nm laser irradiation. This study highlights the significance of chemical engineering in tailoring the antibacterial properties of SA nanoparticles, opening avenues for combating bacterial infections and advancing nanoparticle-based therapies.
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Affiliation(s)
- Zaoming Li
- Department of Chemistry, Capital Normal University, No. 105 West Third Ring North Road, Beijing, 100048, China
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing, 100875, China
| | - Zhiqiang Zhao
- Department of Chemistry, Capital Normal University, No. 105 West Third Ring North Road, Beijing, 100048, China
| | - Shutong Chen
- Department of Chemistry, Capital Normal University, No. 105 West Third Ring North Road, Beijing, 100048, China
| | - Wenjie Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical, Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Zhongguancun North First Street 2, Beijing, 100190, China
| | - Ying Jin
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing, 100875, China
| | - Junjie Mao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No. 1, Beijing East Road, Wuhu, Anhui Province, Wuhu, Anhui, 241000, China
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University, No. 105 West Third Ring North Road, Beijing, 100048, China
| | - Ying Jiang
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing, 100875, China
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Hwang J, Barman S, Gao R, Yang X, O'Malley A, Nagarkatti P, Nagarkatti M, Chruszcz M, Tang C. Membrane-Active Metallopolymers: Repurposing and Rehabilitating Antibiotics to Gram-Negative Superbugs. Adv Healthc Mater 2023; 12:e2301764. [PMID: 37565371 PMCID: PMC10842942 DOI: 10.1002/adhm.202301764] [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: 06/02/2023] [Revised: 08/03/2023] [Indexed: 08/12/2023]
Abstract
Among multiple approaches to combating antimicrobial resistance, a combination therapy of existing antibiotics with bacterial membrane-perturbing agents is promising. A viable platform of metallopolymers as adjuvants in combination with traditional antibiotics is reported in this work to combat both planktonic and stationary cells of Gram-negative superbugs and their biofilms. Antibacterial efficacy, toxicity, antibiofilm activity, bacterial resistance propensity, and mechanisms of action of metallopolymer-antibiotic combinations are investigated. These metallopolymers exhibit 4-16-fold potentiation of antibiotics against Gram-negative bacteria with negligible toxicity toward mammalian cells. More importantly, the lead combinations (polymer-ceftazidime and polymer-rifampicin) eradicate preformed biofilms of MDR E. coli and P. aeruginosa, respectively. Further, β-lactamase inhibition, outer membrane permeabilization, and membrane depolarization demonstrate synergy of these adjuvants with different antibiotics. Moreover, the membrane-active metallopolymers enable the antibiotics to circumvent bacterial resistance development. Altogether, the results indicate that such non-antibiotic adjuvants bear the promise to revitalize the efficacy of existing antibiotics to tackle Gram-negative bacterial infections.
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Affiliation(s)
- JiHyeon Hwang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Swagatam Barman
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Xiaoming Yang
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, USA
| | - Andrea O'Malley
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, USA
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, USA
| | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
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Habib Adam M, Tandon N, Singh I, Tandon R. The Phytochemical Tactics for Battling Antibiotic Resistance in Microbes: Secondary Metabolites and Nano Antibiotics Methods. Chem Biodivers 2023; 20:e202300453. [PMID: 37535351 DOI: 10.1002/cbdv.202300453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/26/2023] [Accepted: 08/01/2023] [Indexed: 08/04/2023]
Abstract
One of the most serious threats to human health is antibiotic resistance, which has left the world without effective antibiotics. While continuous research and inventions for new antibiotics are going on, especially those with new modes of action, it is unlikely that this alone would be sufficient to win the battle. Furthermore, it is also important to investigate additional approaches. One such strategy for improving the efficacy of existing antibiotics is the discovery of adjuvants. This review has collected data from various studies on the current crisis and approaches for combating multi-drug resistance in microbial pathogens using phytochemicals. In addition, the nano antibiotic approaches, are discussed, highlighting the high potentials of essential oils, alkaloids, phenolic compounds, and nano antibiotics in combating antibiotic resistance.
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Affiliation(s)
- Mujahid Habib Adam
- School of Pharmaceutical Sciences, Lovely Professional University, 144411, Phagwara, India
| | - Nitin Tandon
- Department of Chemistry, School of Physical Sciences, Lovely Professional University, 144411, Phagwara, India
| | - Iqubal Singh
- School of Pharmaceutical Sciences, Lovely Professional University, 144411, Phagwara, India
| | - Runjhun Tandon
- Department of Chemistry, School of Physical Sciences, Lovely Professional University, 144411, Phagwara, India
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Park J, Mahida N, Ho G, Pena E, Makabenta JMV, Aneke S, Jiang M, Bouthillette LM, Holz SE, Hassan MA, Wolfe AL, Rotello VM. Integration of Antimicrobials and Delivery Systems: Synergistic Antibiofilm Activity with Biodegradable Nanoemulsions Incorporating Pseudopyronine Analogs. Antibiotics (Basel) 2023; 12:1240. [PMID: 37627660 PMCID: PMC10451319 DOI: 10.3390/antibiotics12081240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/19/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Multi-drug-resistant (MDR) bacteria, including methicillin-resistant Staphylococcus aureus (MRSA), pose a significant challenge in healthcare settings. Small molecule antimicrobials (SMAs) such as α-pyrones have shown promise as alternative treatments for MDR infections. However, the hydrophobic nature of many SMAs limits their solubility and efficacy in complex biological environments. In this study, we encapsulated pseudopyronine analogs (PAs) in biodegradable polymer nanoemulsions (BNEs) for efficient eradication of biofilms. We evaluated a series of PAs with varied alkyl chain lengths and examined their antimicrobial activity against Gram-positive pathogens (S. aureus, MRSA, and B. subtilis). The selected PA with the most potent antibiofilm activity was incorporated into BNEs for enhanced solubility and penetration into the EPS matrix (PA-BNEs). The antimicrobial efficacy of PA-BNEs was assessed against biofilms of Gram-positive strains. The BNEs facilitated the solubilization and effective delivery of the PA deep into the biofilm matrix, addressing the limitations of hydrophobic SMAs. Our findings demonstrated that the PA2 exhibited synergistic antibiofilm activity when it was loaded into nanoemulsions. This study presents a promising platform for addressing MDR infections by combining pseudopyronine analogs with antimicrobial biodegradable nanoemulsions, overcoming challenges associated with treating biofilm infections.
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Affiliation(s)
- Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Neel Mahida
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Gabrielle Ho
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Elizabeth Pena
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Jessa Marie V. Makabenta
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Stanley Aneke
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Mingdi Jiang
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Leah M. Bouthillette
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, Asheville, NC 28804, USA; (L.M.B.); (S.E.H.); (A.L.W.)
| | - Stephanie E. Holz
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, Asheville, NC 28804, USA; (L.M.B.); (S.E.H.); (A.L.W.)
| | - Muhammad Aamir Hassan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
| | - Amanda L. Wolfe
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, Asheville, NC 28804, USA; (L.M.B.); (S.E.H.); (A.L.W.)
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.P.); (N.M.); (G.H.); (E.P.); (J.M.V.M.); (S.A.) (M.J.); (M.A.H.)
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6
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Li W, Fan Q, Cong W, Wang L, Li X, Li W, Hu S, Chen X, Hong W. pH/Hyal-Responsive Surface-Charge Switchable Electrostatic Complexation for Efficient Elimination of MRSA Infection. Mol Pharm 2023. [PMID: 37315332 DOI: 10.1021/acs.molpharmaceut.3c00394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) has become a great threat to human health worldwide, making new effective antibacterial strategies urgently desired. In this study, a cationic pH-responsive delivery system (pHSM) was developed based on poly(β-amino esters)-methoxy poly(ethylene glycol), by which linezolid (LZD) could be encapsulated to form pHSM/LZD. The biocompatibility and stability of pHSM/LZD were further enhanced by adding low-molecular-weight hyaluronic acid (LWT HA) on the surface through electrostatic interaction to form pHSM/LZD@HA, of which the positive surface charges were neutralized by LWT HA under physiological conditions. LWT HA can be degraded by hyaluronidase (Hyal) after arriving at the infection site. In vitro, pHSM/LZD@HA could rapidly change to being positively charged on the surface within 0.5 h under acidic conditions, especially when Hyal was present, thus promoting bacterial binding and biofilm penetration of pHSM/LZD@HA. In addition, the pH/Hyal-dependent accelerated drug release behavior was also observed and it is beneficial for the comprehensive treatment of MRSA infection in vitro and in vivo. Our study provides a novel strategy to develop a pH/Hyal-responsive drug delivery system for the treatment of MRSA infection.
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Affiliation(s)
- Wenting Li
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Qing Fan
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Wei Cong
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Longle Wang
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Xueling Li
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Weiwei Li
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Senhao Hu
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Xiangjun Chen
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
| | - Wei Hong
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, P.R. China
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7
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Cao X, Li Z, Yang F, Xie J, Shi X, Yuan P, Ding X, Lu X. Ultralow Charge Voltage Triggering Exceptional Post-Charging Antibacterial Capability of Co 3 O 4 /MnOOH Nanoneedles for Skin Infection Treatment. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207594. [PMID: 36703622 PMCID: PMC10074062 DOI: 10.1002/advs.202207594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/12/2023] [Indexed: 06/18/2023]
Abstract
The post-charging antibacterial therapy is highly promising for treatment of Gram-negative bacterial wound infections. However, the therapeutic efficacy of the current electrode materials is yet unsatisfactory due to their low charge storage capacity and limited reactive oxygen species (ROS) yields. Herein, the design of MnOOH decorated Co3 O4 nanoneedles (MCO) with exceptional post-charging antibacterial effect against Gram-negative bacteria at a low charge voltage and their implementation as a robust antibacterial electrode for skin wound treatment are reported. Taking advantaging of the increased active sites and enhanced OH- adsorption capability, the charge storage capacity and ROS production of the MCO electrode are remarkably boosted. As a result, the MCO electrode after charging at an ultralow voltage of 1.4 V gives a 5.49 log and 5.82 log bacterial reduction in Escherichia coli (E. coli) and Pseudomonas aeruginosa (P. aeruginosa) within an incubation time of only 5 min, respectively. More importantly, the antibacterial efficiency of the MCO electrode against multi-drug resistant (MDR) bacteria including Klebsiella pneumoniae (K. pneumoniae) and Acinetobacter baumannii (A. baumannii) also reaches 99.999%. In addition, the MCO electrode exhibits excellent reusability, and the role of extracellular ROS in enhancing post-charging antibacterial activity is also unraveled.
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Affiliation(s)
- Xianshuo Cao
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Zongshao Li
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Fan Yang
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Jinhao Xie
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Xin Shi
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Peiyan Yuan
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Xin Ding
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
| | - Xihong Lu
- School of ChemistrySchool of Pharmaceutical Sciences (Shenzhen)The Key Lab of Low‐carbon Chem & Energy Conservation of Guangdong ProvinceSun Yat‐Sen UniversityGuangzhou510275P. R. China
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Bari AK, Belalekar TS, Poojary A, Rohra S. Combination drug strategies for biofilm eradication using synthetic and natural agents in KAPE pathogens. Front Cell Infect Microbiol 2023; 13:1155699. [PMID: 37139491 PMCID: PMC10149696 DOI: 10.3389/fcimb.2023.1155699] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/29/2023] [Indexed: 05/05/2023] Open
Abstract
Antibiotic resistance is a global threat caused by factors such as overuse of antibiotics, lack of awareness, development of biofilms etc. World Health Organization released a list of global priority pathogens which consisted of 12 species of bacteria categorized as expressing critical, high and medium resistance. Several Gram-negative and Gram-positive species are known to cause wide varieties of infections and have become multidrug or extremely drug resistant. Pathogens causing infections associated with invasive medical devices are biofilm producers and hence their treatment becomes difficult due to a structurally stable matrix which prevents antibiotics from penetrating the biofilm and thereby showing its effects. Factors contributing to tolerance are inhibition of penetration, restricted growth and activation of biofilm genes. Combination drug therapies has also shown potential to eradicate biofilm infections. A combination of inhaled Fosfomycin/tobramycin antibiotic strategy has been effective against Gram-negative as well as Gram positive organisms. Along with antibiotics, use of natural or synthetic adjuvants shows promising effects to treat biofilm infections. Fluroquinolone activity on biofilms is disrupted by low oxygen tension in the matrix, a strategy known as hyperbaric oxygen treatment that can enhance efficacy of antibiotics if well optimized. Adjuvants such as Ethylenediaminetetraacetic acid (EDTA), Sodium Dodecyl Sulphate (SDS) and chlorhexidine act by killing non-growing microbial cells aggregated on the inner layer of the biofilm. This review aims to list down current combination therapies used against Gram-negative and Gram-positive biofilm forming pathogens and brief about comparison of combination drugs and their efficacies.
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9
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Antimicrobial Applications of Green Synthesized Bimetallic Nanoparticles from Ocimum basilicum. Pharmaceutics 2022; 14:pharmaceutics14112457. [PMID: 36432648 PMCID: PMC9695082 DOI: 10.3390/pharmaceutics14112457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022] Open
Abstract
Antibiotic resistance is an important and emerging alarm for public health that requires development of new potential antibacterial strategies. In recent years, nanoscale materials have emerged as an alternative way to fight pathogens. Many researchers have shown great interest in nanoparticles (NPs) using noble metals, such as silver, gold, and platinum, even though numerous nanomaterials have shown toxicity. To overcome the problem of toxicity, nanotechnology merged with green chemistry to synthesize nature-friendly nanoparticles from plants. Here, we describe the synthesis of NPs using silver (AgNPs) and platinum (PtNPs) alone or in combination (AgPtNPs) in the presence of Ocimum basilicum (O. basilicum) leaf extract. O. basilicum is a well-known medicinal plant with antibacterial compounds. A preliminary chemical-physical characterization of the extract was conducted. The size, shape and elemental analysis were carried out using UV-Visible spectroscopy, dynamic light scattering (DLS), and zeta potential. Transmission electron microscopy (TEM) confirmed polydisperse NPs with spherical shape. The size of the particles was approximately 59 nm, confirmed by DLS analysis, and the polydisperse index was 0.159. Fourier transform infrared (FTIR) demonstrated an effective and selective capping of the phytoconstituents on the NPs. The cytotoxic activities of AgNPs, PtNPs and AgPtNPs were assessed on different epithelial cell models, using the 3-[4.5-dimethylthiazol-2-yl]-2.5-diphenyltetrazolium bromide (MTT) cell proliferation assay, and discovered low toxicity, with a cell viability of 80%. The antibacterial potential of the NPs was evaluated against Escherichia coli (E. coli), Enterococcus faecalis (E. faecalis), Klebsiella pneumonia (K. pneumoniae), and Staphylococcus aureus (S. aureus) strains. Minimum inhibitory concentration (MIC) assays showed AgPtNP activity till the least concentration of NPs (3.15-1.56 µg/mL) against ATCC, MS, and MDR E. coli, E. faecalis, and S. aureus and the Kirby-Bauer method showed that AgPtNPs gave a zone of inhibition for Gram-positive and Gram-negative bacteria in a range of 9-25 mm. In addition, we obtained AgPtNP synergistic activity in combination with vancomycin or ampicillin antibiotics. Taken together, these results indicate that bimetallic nanoparticles, synthesized from O. basilicum leaf extract, could represent a natural, ecofriendly, cheap, and safe method to produce alternative antibacterial strategies with low cytotoxicity.
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10
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Soontarach R, Nwabor OF, Voravuthikunchai SP. Interaction of lytic phage T1245 with antibiotics for enhancement of antibacterial and anti-biofilm efficacy against multidrug-resistant Acinetobacter baumannii. BIOFOULING 2022; 38:994-1005. [PMID: 36606321 DOI: 10.1080/08927014.2022.2163479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 11/15/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Biofilms associated with multidrug-resistant (MDR) Acinetobacter baumannii on medical devices remain a big clinical problem. Antibiotic susceptibility tests were performed with eight commonly employed antibiotics against clinical isolates. The effects of antibiotics in combination with well-characterized lytic phage T1245 were studied to assess their antibacterial and anti-biofilm efficacy. Ceftazidime, colistin, imipenem, and meropenem significantly reduced bacterial density up to approximately 80% when combined with phage T1245, compared with control. Phage T1245 in combination with ceftazidime, colistin, and meropenem at subinhibitory concentrations demonstrated significant reduction in biomass and bacterial viability of 3-day established biofilms, compared with antibiotic alone. In addition, electron microscopy further confirmed the disruption of biofilm structure and cell morphology upon treatment with phage T1245 and antibiotics, including ceftazidime, colistin, and meropenem. Combined treatment of phage T1245 with these antibiotics could be employed for the management of A. baumannii infections and eradication of the bacterial biofilms.
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Affiliation(s)
- Rosesathorn Soontarach
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
| | - Ozioma Forstinus Nwabor
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Supayang Piyawan Voravuthikunchai
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkla University, Songkhla, Thailand
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11
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Zhao X, Tang H, Jiang X. Deploying Gold Nanomaterials in Combating Multi-Drug-Resistant Bacteria. ACS NANO 2022; 16:10066-10087. [PMID: 35776694 DOI: 10.1021/acsnano.2c02269] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance has become a serious threat to human health due to the overuse of antibiotics. Different antibiotics are being developed to treat resistant bacteria, but the development cycle of antibiotics is hard to keep up with the high incidence of antibiotic resistance. Recent advances in antimicrobial nanomaterials have made nanotechnology a powerful solution to this dilemma. Among these nanomaterials, gold nanomaterials have excellent antibacterial efficacy and biosafety, making them alternatives to antibiotics. This review presents strategies that use gold nanomaterials to combat drug-resistant bacteria. We focus on the influence of physicochemical factors such as surface chemistry, size, and shape of gold nanomaterials on their antimicrobial properties and describe the antimicrobial applications of gold nanomaterials in medical devices. Finally, the existing challenges and future directions are discussed.
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Affiliation(s)
- Xiaohui Zhao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
| | - Hao Tang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
| | - Xingyu Jiang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, Guangdong 518055, P.R. China
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12
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Li Z, Lin S, Zhu M, Wang L, Liu X, Huang X. Enhanced antibacterial activity of surface re-engineered lysozyme against Gram-negative bacteria without accumulated resistance. Biomater Sci 2022; 10:4474-4478. [PMID: 35876097 DOI: 10.1039/d2bm00868h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we show a way to improve the antibacterial activity of lysozyme by incorporating guanidino functional groups onto its surface (Lyz-Gua), which could treat pathogenic bacteria without accumulated resistance and shows advantages over commercial antibiotics.
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Affiliation(s)
- Zhenhui Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Song Lin
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Mei Zhu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Xiaoman Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Xin Huang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
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13
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Nabawy A, Makabenta JM, Schmidt-Malan S, Park J, Li CH, Huang R, Fedeli S, Chattopadhyay AN, Patel R, Rotello VM. Dual antimicrobial-loaded biodegradable nanoemulsions for synergistic treatment of wound biofilms. J Control Release 2022; 347:379-388. [PMID: 35550914 PMCID: PMC11060603 DOI: 10.1016/j.jconrel.2022.05.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/18/2022]
Abstract
Wound biofilm infections caused by multidrug-resistant (MDR) bacteria constitute a major threat to public health; acquired resistance combined with resistance associated with the biofilm phenotype makes combatting these infections challenging. Biodegradable polymeric nanoemulsions that encapsulate two hydrophobic antimicrobial agents (eugenol and triclosan) (TE-BNEs) as a strategy to combat chronic wound infections are reported here. The cationic nanoemulsions efficiently penetrate and accumulate in biofilms, synergistically eradicating MDR bacterial biofilms, including persister cells. Notably, the nanoemulsion platform displays excellent biocompatibility and delays emergence of resistance to triclosan. The TE-BNEs are active in an in vivo murine model of mature MDR wound biofilm infections, with 99% bacterial elimination. The efficacy of this system coupled with prevention of emergence of bacterial resistance highlight the potential of this combination platform to treat MDR wound biofilm infections.
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Affiliation(s)
- Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Jessa Marie Makabenta
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Suzannah Schmidt-Malan
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America.
| | - Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Rui Huang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Stefano Fedeli
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America.
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
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14
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New potentiators of ineffective antibiotics: Targeting the Gram-negative outer membrane to overcome intrinsic resistance. Curr Opin Chem Biol 2021; 66:102099. [PMID: 34808425 DOI: 10.1016/j.cbpa.2021.102099] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/30/2021] [Accepted: 10/07/2021] [Indexed: 12/20/2022]
Abstract
Because of the rise in antibiotic resistance and the dwindling pipeline of effective antibiotics, it is imperative to explore avenues that breathe new life into existing drugs. This is particularly important for intrinsically resistant Gram-negative bacteria, which are exceedingly difficult to treat. The Gram-negative outer membrane (OM) prevents the entry of a plethora of antibiotics that are effective against Gram-positive bacteria, despite the presence of the targets of these drugs. Uncovering molecules that increase the permeability of the OM to sensitize Gram-negative bacteria to otherwise ineffective antibiotics is an approach that has recently garnered increased attention in the field. In this review, we survey chemical matter which has been shown to potentiate antibiotics against Gram-negative bacteria by perturbing the OM. These include peptides, nanoparticles, macromolecules, antibiotic conjugates, and small molecules.
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15
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Makabenta JMV, Park J, Li CH, Chattopadhyay AN, Nabawy A, Landis RF, Gupta A, Schmidt-Malan S, Patel R, Rotello VM. Polymeric Nanoparticles Active against Dual-Species Bacterial Biofilms. Molecules 2021; 26:4958. [PMID: 34443542 PMCID: PMC8399783 DOI: 10.3390/molecules26164958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/06/2021] [Accepted: 08/12/2021] [Indexed: 11/25/2022] Open
Abstract
Biofilm infections are a global public health threat, necessitating new treatment strategies. Biofilm formation also contributes to the development and spread of multidrug-resistant (MDR) bacterial strains. Biofilm-associated chronic infections typically involve colonization by more than one bacterial species. The co-existence of multiple species of bacteria in biofilms exacerbates therapeutic challenges and can render traditional antibiotics ineffective. Polymeric nanoparticles offer alternative antimicrobial approaches to antibiotics, owing to their tunable physico-chemical properties. Here, we report the efficacy of poly(oxanorborneneimide) (PONI)-based antimicrobial polymeric nanoparticles (PNPs) against multi-species bacterial biofilms. PNPs showed good dual-species biofilm penetration profiles as confirmed by confocal laser scanning microscopy. Broad-spectrum antimicrobial activity was observed, with reduction in both bacterial viability and overall biofilm mass. Further, PNPs displayed minimal fibroblast toxicity and high antimicrobial activity in an in vitro co-culture model comprising fibroblast cells and dual-species biofilms of Escherichia coli and Pseudomonas aeruginosa. This study highlights a potential clinical application of the presented polymeric platform.
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Affiliation(s)
- Jessa Marie V. Makabenta
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Ryan F. Landis
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Akash Gupta
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
| | - Suzannah Schmidt-Malan
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55901, USA; (S.S.-M.); (R.P.)
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55901, USA; (S.S.-M.); (R.P.)
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA; (J.M.V.M.); (J.P.); (C.-H.L.); (A.N.C.); (A.N.); (R.F.L.); (A.G.)
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16
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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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17
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Tailoring metal-organic frameworks-based nanozymes for bacterial theranostics. Biomaterials 2021; 275:120951. [PMID: 34119883 DOI: 10.1016/j.biomaterials.2021.120951] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 05/24/2021] [Accepted: 05/29/2021] [Indexed: 02/07/2023]
Abstract
Nanozymes are next-generation artificial enzymes having distinguished features such as cost-effective, enhanced surface area, and high stability. However, limited selectivity and moderate activity of nanozymes in the biochemical environment hindered their usage and encouraged researchers to seek alternative catalytic materials. Recently, metal-organic frameworks (MOFs) characterized by distinct crystalline porous structures with large surface area, tunable pores, and uniformly dispersed active sites emerged, that filled the gap between natural enzymes and nanozymes. Moreover, by selecting suitable metal ions and organic linkers, MOFs can be designed for effective bacterial theranostics. In this review, we briefly presented the design and fabrication of MOFs. Then, we demonstrated the applications of MOFs in bacterial theranostics and their safety considerations. Finally, we proposed the major obstacles and opportunities for further development in research on the interface of nanozymes and MOFs. We expect that MOFs based nanozymes with unique physicochemical and intrinsic enzyme-mimicking properties will gain broad interest in both fundamental research and biomedical applications.
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18
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Makabenta JMV, Nabawy A, Li CH, Schmidt-Malan S, Patel R, Rotello VM. Nanomaterial-based therapeutics for antibiotic-resistant bacterial infections. Nat Rev Microbiol 2021; 19:23-36. [PMID: 32814862 PMCID: PMC8559572 DOI: 10.1038/s41579-020-0420-1] [Citation(s) in RCA: 475] [Impact Index Per Article: 158.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2020] [Indexed: 12/22/2022]
Abstract
Antibiotic-resistant bacterial infections arising from acquired resistance and/or through biofilm formation necessitate the development of innovative 'outside of the box' therapeutics. Nanomaterial-based therapies are promising tools to combat bacterial infections that are difficult to treat, featuring the capacity to evade existing mechanisms associated with acquired drug resistance. In addition, the unique size and physical properties of nanomaterials give them the capability to target biofilms, overcoming recalcitrant infections. In this Review, we highlight the general mechanisms by which nanomaterials can be used to target bacterial infections associated with acquired antibiotic resistance and biofilms. We emphasize design elements and properties of nanomaterials that can be engineered to enhance potency. Lastly, we present recent progress and remaining challenges for widespread clinical implementation of nanomaterials as antimicrobial therapeutics.
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Affiliation(s)
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, USA
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, USA
| | - Suzannah Schmidt-Malan
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, USA.
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