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Berlinck RGS, Bernardi DI, Fill T, Fernandes AAG, Jurberg ID. The chemistry and biology of guanidine secondary metabolites. Nat Prod Rep 2020; 38:586-667. [PMID: 33021301 DOI: 10.1039/d0np00051e] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 2017-2019Guanidine natural products isolated from microorganisms, marine invertebrates and terrestrial plants, amphibians and spiders, represented by non-ribosomal peptides, guanidine-bearing polyketides, alkaloids, terpenoids and shikimic acid derived, are the subject of this review. The topics include the discovery of new metabolites, total synthesis of natural guanidine compounds, biological activity and mechanism-of-action, biosynthesis and ecological functions.
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Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
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Du M, Liu X, Xu J, Li S, Wang S, Zhu Y, Wang J. Antimicrobial Effect of Zophobas morio Hemolymph against Bovine Mastitis Pathogens. Microorganisms 2020; 8:microorganisms8101488. [PMID: 32998225 PMCID: PMC7601528 DOI: 10.3390/microorganisms8101488] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/20/2020] [Accepted: 09/25/2020] [Indexed: 12/26/2022] Open
Abstract
Coliforms and Staphylococcus spp. infections are the leading causes of bovine mastitis. Despite extensive research and development in antibiotics, they have remained inadequately effective in treating bovine mastitis induced by multiple pathogen infection. In the present study, we showed the protective effect of Zophobas morio (Z. morio) hemolymph on bovine mammary epithelial cells against bacterial infection. Z. morio hemolymph directly kills both Gram-positive and Gram-negative bacteria through membrane permeation and prevents the adhesion of E. coli or the clinically isolated S. simulans strain to bovine mammary epithelial (MAC-T) cells. In addition, Z. morio hemolymph downregulates the expression of nucleotide-binding oligomerization domain (NOD)-like receptor family member pyrin domain-containing protein 3 (NLRP3), caspase-1, and NLRP6, as well as inhibits the secretion of interleukin-1β (IL-1β) and IL-18, which attenuates E. coli or S. simulans-induced pyroptosis. Overall, our results suggest the potential role of Z. morio hemolymph as a novel therapeutic candidate for bovine mastitis.
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53
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Liu Y, Li R, Xiao X, Wang Z. Bacterial metabolism-inspired molecules to modulate antibiotic efficacy. J Antimicrob Chemother 2020; 74:3409-3417. [PMID: 31211378 DOI: 10.1093/jac/dkz230] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The decreasing antibiotic susceptibility of bacterial pathogens calls for novel antimicrobial therapies. Traditional screening pathways based on drug-target interaction have gradually reached the stage of diminishing returns. Thus, novel strategies are urgently needed in the fight against antibiotic-refractory bacteria, particularly for tolerant bacteria. Recently, evidence has accumulated demonstrating that microbial changes caused by bacterial metabolic processes significantly modulate antibiotic killing. A better understanding of these bacterial metabolic processes is indicating a need to screen novel metabolic modulators as potential antibiotic adjuvants. In this review, we describe the state of our current knowledge about how these bacterial metabolism-inspired molecules affect antibiotic efficacy, including potentiation and inhibition activity. In addition, the challenges faced and prospects for bringing them into clinic are also discussed. These examples may provide candidates or targets for the development of novel antibiotic adjuvants.
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Affiliation(s)
- Yuan Liu
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Ruichao Li
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Xia Xiao
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Zhiqiang Wang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
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Liu Y, Shi J, Tong Z, Jia Y, Yang K, Wang Z. Potent Broad-Spectrum Antibacterial Activity of Amphiphilic Peptides against Multidrug-Resistant Bacteria. Microorganisms 2020; 8:microorganisms8091398. [PMID: 32932906 PMCID: PMC7564829 DOI: 10.3390/microorganisms8091398] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
The emergence and prevalence of multidrug-resistant (MDR) bacteria particularly Gram-negative bacteria presents a global crisis for human health. Colistin and tigecycline were recognized as the last resort of defenses against MDR Gram-negative pathogens. However, the emergence and prevalence of MCR or Tet(X)-mediated acquired drug resistance drastically impaired their clinical efficacy. It has been suggested that antimicrobial peptides might act a crucial role in combating antibiotic resistant bacteria owing to their multiple modes of action and characteristics that are not prone to developing drug resistance. Herein, we report a safe and stable tryptophan-rich amphiphilic peptide termed WRK-12 with broad-spectrum antibacterial activity against various MDR bacteria, including MRSA, colistin and tigecycline-resistant Escherichia coli. Mechanistical studies showed that WRK-12 killed resistant E. coli through permeabilizing the bacterial membrane, dissipating membrane potential and triggering the production of reactive oxygen species (ROS). Meanwhile, WRK-12 significantly inhibited the formation of an E. coli biofilm in a dose-dependent manner. These findings revealed that amphiphilic peptide WRK-12 is a promising drug candidate in the fight against MDR bacteria.
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Affiliation(s)
- Yuan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
- Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Jingru Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Ziwen Tong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Yuqian Jia
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Kangni Yang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Zhiqiang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Correspondence:
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55
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Liu Y, Jia Y, Yang K, Tong Z, Shi J, Li R, Xiao X, Ren W, Hardeland R, Reiter RJ, Wang Z. Melatonin overcomes MCR-mediated colistin resistance in Gram-negative pathogens. Am J Cancer Res 2020; 10:10697-10711. [PMID: 32929375 PMCID: PMC7482817 DOI: 10.7150/thno.45951] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Emergence, prevalence and widely spread of plasmid-mediated colistin resistance in Enterobacteriaceae strongly impairs the clinical efficacy of colistin against life-threatening bacterial infections. Combinations of antibiotics and FDA-approved non-antibiotic agents represent a promising means to address the widespread emergence of antibiotic-resistant pathogens. Methods: Herein, we investigated the synergistic activity between melatonin and antibiotics against MCR (mobilized colistin resistance)-positive Gram-negative pathogens through checkerboard assay and time-killing curve. Molecular mechanisms underlying its mode of action were elucidated. Finally, we assessed the in vivo efficacy of melatonin in combination with colistin against drug-resistant Gram-negative bacteria. Results: Melatonin, which has been approved for treating sleep disturbances and circadian disorders, substantially potentiates the activity of three antibiotics, particularly colistin, against MCR-expressing pathogens without enhancing its toxicity. This is evidence that the combination of colistin with melatonin enhances bacterial outer membrane permeability, promotes oxidative damage and inhibits the effect of efflux pumps. In three animal models infected by mcr-1-carrying E. coli, melatonin dramatically rescues colistin efficacy. Conclusion: Our findings revealed that melatonin serves as a promising colistin adjuvant against MCR-positive Gram-negative pathogens.
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56
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Meng D, Sun X, Sun S, Li W, Lv Y, Fan Z. The potential of antimicrobial peptide Hispidalin application in pork preservation during cold storage. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- De‐Mei Meng
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
| | - Xue‐Qing Sun
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
| | - Sheng‐Nan Sun
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
| | - Wen‐Juan Li
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
| | - Yu‐Jie Lv
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
| | - Zhen‐Chuan Fan
- State Key Laboratory of Food Nutrition and Safety Institute of Health Biotechnology College of Food Science and Engineering Tianjin University of Science & Technology Tianjin People's Republic of China
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57
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Liu Y, Jia Y, Yang K, Li R, Xiao X, Zhu K, Wang Z. Metformin Restores Tetracyclines Susceptibility against Multidrug Resistant Bacteria. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902227. [PMID: 32596101 PMCID: PMC7312304 DOI: 10.1002/advs.201902227] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 03/29/2020] [Indexed: 05/22/2023]
Abstract
Highly persistent incidence of multidrug resistant (MDR) bacterial pathogens constitutes a global burden for public health. An alternative strategy to alleviate such a crisis is to identify promising compounds to restore antibiotics activity against MDR bacteria. It is reported that the antidiabetic drug metformin exhibits the potentiation effect on tetracycline antibiotics, particularly doxycycline and minocycline, against MDR S. aureus, E. faecalis, E. coli, and S. enteritidis. Mechanistic studies demonstrate that metformin promotes intracellular accumulation of doxycycline in tetracycline-resistant E. coli. In addition, metformin boosts the immune response and alleviates the inflammatory responses in vitro. Last, metformin fully restores the activity of doxycycline in three animal infection models. Collectively, these results reveal the potential of metformin as a novel tetracyclines adjuvant to circumvent MDR bacterial pathogens and to improve the treatment outcome of recalcitrant infections.
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Affiliation(s)
- Yuan Liu
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
- Jiangsu Co‐innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhouJiangsu225009China
| | - Yuqian Jia
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
| | - Kangni Yang
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
| | - Ruichao Li
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
- Jiangsu Co‐innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhouJiangsu225009China
| | - Xia Xiao
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
- Jiangsu Co‐innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhouJiangsu225009China
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Veterinary MedicineChina Agricultural UniversityBeijing100193China
| | - Zhiqiang Wang
- Institute of Comparative MedicineCollege of Veterinary MedicineYangzhou UniversityYangzhouJiangsu225009China
- Jiangsu Co‐innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhouJiangsu225009China
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58
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Song M, Liu Y, Huang X, Ding S, Wang Y, Shen J, Zhu K. A broad-spectrum antibiotic adjuvant reverses multidrug-resistant Gram-negative pathogens. Nat Microbiol 2020; 5:1040-1050. [PMID: 32424338 DOI: 10.1038/s41564-020-0723-z] [Citation(s) in RCA: 238] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
The rapid emergence and dissemination of multidrug-resistant (MDR) bacterial pathogens pose a serious threat to global healthcare. One particular concern is the carbapenem-resistant Enterobacteriaceae (CRE), a group of Gram-negative bacteria that have evolved resistance to all or nearly all available antibiotics. Coupled with the fact of barren antibiotic development pipeline nowadays, a critical approach is to revitalize existing antibiotics using antibiotic adjuvants. We found a short linear antibacterial peptide (SLAP)-S25 carrying four non-natural amino acids of 2,4-diaminobutanoic acid (Dab), which solely showed weak antibacterial activity but boosted the efficacy of antibiotics covering all major classes, including cefepime, colistin, ofloxacin, rifampicin, tetracycline and vancomycin, against MDR Gram-negative pathogens. Mechanistic studies showed that SLAP-S25 triggers membrane damage by binding to both lipopolysaccharide (LPS) in the outer membrane and phosphatidylglycerol (PG) in bacterial cytoplasmic membrane, to potentiate antibiotic efficacy through collaborative strategies. Lastly, SLAP-S25 effectively enhanced the activity of colistin against MDR Escherichia coli-associated infections in three animal models. Our findings provide a potential therapeutic option using existing antibiotics in combination with broad-spectrum antibiotic adjuvants, to address the prevalent infections caused by MDR Gram-negative pathogens worldwide.
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Affiliation(s)
- Meirong Song
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yuan Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xiaoyong Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Shuangyang Ding
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China.,Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing, China
| | - Yang Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jianzhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China. .,National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China. .,Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing, China.
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China. .,National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China.
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59
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Liu Y, Jia Y, Yang K, Li R, Xiao X, Wang Z. Antagonizing Vancomycin Resistance in Enterococcus by Surface Localized Antimicrobial Display-Derived Peptides. ACS Infect Dis 2020; 6:761-767. [PMID: 31505930 DOI: 10.1021/acsinfecdis.9b00164] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Decreasing the therapeutic pipeline for vancomycin-resistant Enterococci (VRE) calls for novel strategies to enhance our antibacterial arsenal. Herein, we investigated the potential applications of surface localized antimicrobial display (SLAY)-derived cationic peptides in the fight against VanA operon mediated vancomycin-resistant Enterococcus. Through determining their antibacterial spectrum, we found that SLAY peptide 1/2 displayed moderate bactericidal activity against Enterococcus with minimal inhibitory concentration (MIC) values of 2-8 μg/mL. Furthermore, we observed a significant synergistic activity between SLAY-P1 and vancomycin against VRE. Mechanistic studies demonstrated that SLAY-P1 specifically inhibits transcription of the vanRS two-component system, thereby restoring vancomycin activity and resulting in the accumulation of the cell wall precursor. Meaningfully, the combination of SLAY-P1 and vancomycin prevents the emergence of vancomycin resistance. Consistent with in vitro synergistic results, the addition of SLAY-P1 significantly enhanced the survival rates of Galleria mellonella larvae compared with vancomycin monotherapy. Taken together, these results suggested that SLAY-derived cationic peptides not only display antibacterial activity against VRE but also reverse vancomycin resistance in Enterococcus, providing promising candidates for combating vancomycin-resistant pathogens.
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Affiliation(s)
- Yuan Liu
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
| | - Yuqian Jia
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
| | - Kangni Yang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
| | - Ruichao Li
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
| | - Xia Xiao
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
| | - Zhiqiang Wang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No. 88 University South Road, Yangzhou, Jiangsu 225009, China
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Hong M, Miao Z, Xu X, Zhang Q. Magnetic Iron Oxide Nanoparticles Immobilized with Sugar-Containing Poly(ionic liquid) Brushes for Efficient Trapping and Killing of Bacteria. ACS APPLIED BIO MATERIALS 2020; 3:3664-3672. [DOI: 10.1021/acsabm.0c00298] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mei Hong
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Ziyue Miao
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Xiaoling Xu
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Qiang Zhang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
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Anti-HIV agent azidothymidine decreases Tet(X)-mediated bacterial resistance to tigecycline in Escherichia coli. Commun Biol 2020; 3:162. [PMID: 32246108 PMCID: PMC7125129 DOI: 10.1038/s42003-020-0877-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 03/06/2020] [Indexed: 12/19/2022] Open
Abstract
Recent emergence of high-level tigecycline resistance mediated by Tet(X3/X4) in Enterobacteriaceae undoubtably constitutes a serious threat for public health worldwide. Antibiotic adjuvant strategy makes antibiotic more effective against these resistant pathogens through interfering intrinsic resistance mechanisms or enhancing antibiotic actions. Herein, we screened a collection of drugs to identify compounds that are able to restore tigecycline activity against resistant pathogens. Encouragingly, we discovered that anti-HIV agent azidothymidine dramatically potentiates tigecycline activity against clinically resistant bacteria. Meanwhile, addition of azidothymidine prevents the evolution of tigecycline resistance in E. coli and the naturally occurring horizontal transfer of tet(X4). Evidence demonstrated that azidothymidine specifically inhibits DNA synthesis and suppresses resistance enzyme activity. Moreover, in in vivo infection models by Tet(X4)-expression E. coli, the combination of azidothymidine and tigecycline achieved remarkable treatment benefits including increased survival and decreased bacterial burden. These findings provide an effective regimen to treat infections caused by tigecycline-resistant Escherichia coli. Yuan Liu et al. demonstrate that anti-HIV agent azidothymidine restores tigecycline’s activity against pathogens resistant to this antibiotic. This study suggests the combination of azidothymidine and tigecycline as an effective regimen to treat infections caused by tigecycline-resistant Escherichia coli.
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62
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Qu S, Liu Y, Hu Q, Han Y, Hao Z, Shen J, Zhu K. Programmable antibiotic delivery to combat methicillin-resistant Staphylococcus aureus through precision therapy. J Control Release 2020; 321:710-717. [PMID: 32135225 DOI: 10.1016/j.jconrel.2020.02.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/14/2020] [Accepted: 02/28/2020] [Indexed: 12/21/2022]
Abstract
The rapid dissemination of life-threatening multidrug-resistant bacterial pathogens calls for the development of new antibacterial agents and alternative strategies. The virulence factor secreted by bacteria plays a crucial role in the sophisticated processes during infections. Inspired by the unique capacity of many bacteria inducing clotting of plasma to initiate colonization, we propose a programmable antibiotic delivery system for precision therapy using methicillin-resistant S. aureus (MRSA) as a model. Coagulase utilized by MRSA to directly cleave fibrinogen into fibrin, is an ideal target not only for tracking bacterial status but for triggering the collapse of fibrinogen functionalized porous microspheres. Subsequently, staphylokinase, another virulence factor of MRSA, catalyzed hydrolysis of fibrin to further release the encapsulated antibiotics from microspheres. Our sequential triggered-release system exhibits high selectivity to distinguish live or dead MRSA from other pathogenic bacteria. Furthermore, such programmable microspheres clear 99% MRSA in 4 h, and show increased efficiency in a wound healing model in rats. Our study provides a programmable drug delivery system to precisely target bacterial pathogens using their intrinsic enzymatic cascades. This programmable platform with reduced selective stress of antibiotics on microbiota sheds light on the potential therapy for future clinical applications.
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Affiliation(s)
- Shaoqi Qu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Ying Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Qiao Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yiming Han
- College of Engineering, Peking University, Beijing 100871, China
| | - Zhihui Hao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jianzhong Shen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing 100193, China.
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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63
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Sun Y, Zhao C, Niu J, Ren J, Qu X. Colorimetric Band-aids for Point-of-Care Sensing and Treating Bacterial Infection. ACS CENTRAL SCIENCE 2020; 6:207-212. [PMID: 32123738 PMCID: PMC7047266 DOI: 10.1021/acscentsci.9b01104] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 05/16/2023]
Abstract
Sensing bacterial infections and monitoring drug resistance are very important for the selection of treatment options. However, the common methods of sensing resistance are limited by time-consuming, the requirement for professional personnel, and expensive instruments. Moreover, the abuse of antibiotics causes the accelerated process of bacterial resistance. Herein, we construct a portable paper-based band-aid (PBA) which implements a selective antibacterial strategy after sensing of drug resistance. The colors of PBA indicate bacterial infection (yellow) and drug resistance (red), just like a bacterial resistance colorimetric card. On the basis of color, antibiotic-based chemotherapy and Zr-MOF PCN-224-based photodynamic therapy (PDT) are used on site to treat sensitive and resistant strains, respectively. Eventually, it takes 4 h to sense, and the limit of detection is 104 CFU/mL for drug-resistant E. coli. Compared with traditional PDT-based antibacterial strategies, our design can alleviate off-target side effects, maximize therapeutic efficacy, and track the drug resistance in real time with the naked eye. This work develops a new way for the rational use of antibiotics. Given the low cost and easy operation of this point-of-care device, it can be developed for practical applications.
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Affiliation(s)
- Yuhuan Sun
- Laboratory
of Chemical Biology and State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- School
of Applied Chemistry and Engineering, University
of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chuanqi Zhao
- Laboratory
of Chemical Biology and State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- E-mail:
| | - Jingsheng Niu
- Laboratory
of Chemical Biology and State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- School
of Applied Chemistry and Engineering, University
of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinsong Ren
- Laboratory
of Chemical Biology and State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- School
of Applied Chemistry and Engineering, University
of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaogang Qu
- Laboratory
of Chemical Biology and State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- E-mail:
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Cui Y, Wang S, Ding S, Shen J, Zhu K. Toxins and mobile antimicrobial resistance genes in Bacillus probiotics constitute a potential risk for One Health. JOURNAL OF HAZARDOUS MATERIALS 2020; 382:121266. [PMID: 31563808 DOI: 10.1016/j.jhazmat.2019.121266] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/12/2019] [Accepted: 09/19/2019] [Indexed: 06/10/2023]
Abstract
Probiotic microbes conferring health benefits to the hosts have attracted great attention. However, the safety of probiotics is not guaranteed, although the increasing widespread use of probiotics with excellent overall safety records. Here, we performed a systematic evaluation of the safety of commercial Bacillus probiotics intended for usage in humans, animals, plants, aquaculture and environment in China. Nearly half of the 65 isolated Bacillus spp. strains from these commercial probiotic products were capable of producing hazardous toxins. Infections with the representative isolates could cause sepsis, intestinal inflammation and liver injury in different mouse models. Additionally, these isolates harbor multiple antimicrobial resistance genes coupled with mobile genetic elements. Collectively, the capability for producing various toxins and harboring mobile antimicrobial resistance genes in Bacillus probiotics indicates a potential risk for One Health.
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Affiliation(s)
- Yifang Cui
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shaolin Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, Beijing 100193, China
| | - Shuangyang Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jianzhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, Beijing 100193, China
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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65
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Liu Y, Yang K, Jia Y, Wang Z. Repurposing Peptidomimetic as Potential Inhibitor of New Delhi Metallo-β-lactamases in Gram-Negative Bacteria. ACS Infect Dis 2019; 5:2061-2066. [PMID: 31637907 DOI: 10.1021/acsinfecdis.9b00364] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The emergence, prevalence, and rapid spread of New Delhi metallo-β-lactamases (NDMs) in Gram-negative pathogens threaten our traditional regimen to treat bacterial infectious diseases. Discovery of novel NDMs inhibitors offers an alternative approach to restore the carbapenems activity. However, thus far, no clinical inhibitor of NDMs has been approved. In this study, the potential of peptides and analogues as carbapenems adjuvant in NDMs-positive pathogens was investigated. Herein, we successfully found that peptidomimetic 4 (PEP4) is a potential inhibitor of NDM enzymes. PEP4 displayed significant synergistic activity with Meropenem against NDM-expression Gram-negative bacteria in vitro. Moreover, PEP4 effectively restored Meropenem efficacy in mice infection models infected with NDM-5-positive E. coli. These data demonstrated the high potential of PEP4 as carbapenems adjuvant to address NDMs-positive Gram-negative pathogens.
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Affiliation(s)
- Yuan Liu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | | | | | - Zhiqiang Wang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
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66
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Qu S, Dai C, Shen Z, Tang Q, Wang H, Zhai B, Zhao L, Hao Z. Mechanism of Synergy Between Tetracycline and Quercetin Against Antibiotic Resistant Escherichia coli. Front Microbiol 2019; 10:2536. [PMID: 31824439 PMCID: PMC6882743 DOI: 10.3389/fmicb.2019.02536] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/21/2019] [Indexed: 11/13/2022] Open
Abstract
Treatment of multi-drug resistant (MDR) Escherichia coli intestinal infections are being hampered by the presence of the mcr-1 (colistin) and tet (tetracycline) resistance genes in these strains. We screened seven traditional Chinese medicines for their ability to synergize with tetracycline to provide an effective new drug for the treatment of animal intestinal diseases caused by MDR E. coli. Our primary screen identified quercetin as a compound that reduced the minimum inhibitory concentration (MIC) of tetracycline against the E. coli standard test strain American Type Culture Collection (ATCC) 25922 and clinical isolates fourfold from 4 and 256 μg/mL to 1 and 64 μg/mL, respectively. Low levels of quercetin in combination with tetracycline were bactericidal for clinical E. coli isolates and after 24 h, the differences between this combination and each drug singly were 108 CFU/mL. We used this combination therapy in a mouse infection model and found 100% survival after 48 h compared with <50% for each drug alone. This drug combination also synergized to disrupt the bacterial cell envelope resulting in increased permeability and cell lysis. These data demonstrate that combinatorial screening at low concentrations constitutes an efficient approach to identify clinically relevant quercetin/tetracycline combinations and is a valuable prototypical combination that has a high clinical potential against E. coli infections.
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Affiliation(s)
- Shaoqi Qu
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Cunchun Dai
- Agricultural Bio-Pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Zhangqi Shen
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qihe Tang
- Agricultural Bio-Pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Haixia Wang
- Agricultural Bio-Pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Bing Zhai
- Agricultural Bio-Pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Li Zhao
- Agricultural Bio-Pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Zhihui Hao
- College of Veterinary Medicine, China Agricultural University, Beijing, China
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67
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Wu SC, Han F, Song MR, Chen S, Li Q, Zhang Q, Zhu K, Shen JZ. Natural Flavones from Morus alba against Methicillin-Resistant Staphylococcus aureus via Targeting the Proton Motive Force and Membrane Permeability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10222-10234. [PMID: 31385700 DOI: 10.1021/acs.jafc.9b01795] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The emergence and rapid spread of methicillin-resistant Staphylococcus aureus (MRSA) critically requires alternative therapeutic options. New antibacterial drugs and strategies are urgently needed to combat MRSA-associated infections. Here, we investigated the antibacterial activity of flavones from Morus alba and the potential mode of action against MRSA. Kuwanon G, kuwanon H, mulberrin, and morusin displayed high efficiency in killing diverse MRSA isolates. On the basis of structure-activity analysis, the cyclohexene-phenyl ketones and isopentenyl groups were critical to increase the membrane permeability and to dissipate the proton motive force. Meanwhile, mechanistic studies further showed that kuwanon G displayed rapid bactericidal activity in vitrowith difficulty in developing drug resistance. Kuwanon G targeted phosphatidylglycerol and cardiolipin in the cytoplasmic membrane through the formation of hydrogen bonds and electrostatic interactions. Additionally, kuwanon G promoted wound healing in a mouse model of MRSA skin infection. In summary, these results indicate that flavones are promising lead compounds to treat MRSA-associated infections through disrupting the proton motive force and membrane permeability.
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Affiliation(s)
- Shuai-Cheng Wu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
- College of Veterinary Medicine , Qingdao Agricultural University , No. 700 Changcheng Road , Qingdao 266109 , Shandong , China
- College of Agriculture and Forestry , Linyi University , No. 1 Gongye Road , Linyi 276000 , Shandong , China
| | - Fei Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Mei-Rong Song
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Shang Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Qian Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Qi Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Jian-Zhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
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68
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Chen X, Zhang X, Lin F, Guo Y, Wu FG. One-Step Synthesis of Epoxy Group-Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug-Resistant Bacteria and Their Biofilms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901647. [PMID: 31353824 DOI: 10.1002/smll.201901647] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/21/2019] [Indexed: 06/10/2023]
Abstract
Multidrug-resistant bacteria (MRB) and their biofilms, both of which develop high levels of drug tolerance, cause severe threats to global health. This study demonstrates that biocompatible fluorescent silicon-containing nanodots can be a multifunctional platform for simultaneously imaging and eliminating MRB and their biofilms. Ultrasmall epoxy group (oxirane)-functionalized organosilica nanodots (OSiNDs) with a high photoluminescence quantum yield of ≈31% are synthesized via a simple one-step hydrothermal treatment of an epoxy group-containing silane molecule, 3-glycidoxypropyltrimethoxysilane, and an organic dye, rose bengal. The resultant OSiNDs can be employed as a universal imaging reagent for visualizing various bacteria/biofilms, including MRB and their biofilms. Moreover, the epoxy group-terminated OSiNDs can be conjugated with amine-containing reagents only via the simple stirring of the mixtures at an elevated temperature (e.g., 60 °C) for several hours (e.g., 3 h) without the addition of activating reagents. The amine-containing antibiotic vancomycin (Van) can thus be easily conjugated with the OSiNDs, and the obtained OSiNDs-Van can successfully inhibit the growth of MRB and even eliminate their biofilms. Collectively, the present work may give new impetus to the development of novel antibacterial and anti-biofilm agents for overcoming the drug resistance of bacteria.
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Affiliation(s)
- Xiaokai Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xiaodong Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Fengming Lin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuxin Guo
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
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69
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Meng DM, Li WJ, Shi LY, Lv YJ, Sun XQ, Hu JC, Fan ZC. Expression, purification and characterization of a recombinant antimicrobial peptide Hispidalin in Pichia pastoris. Protein Expr Purif 2019; 160:19-27. [DOI: 10.1016/j.pep.2019.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 03/17/2019] [Indexed: 10/27/2022]
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70
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Yougbare S, Chang TK, Tan SH, Kuo JC, Hsu PH, Su CY, Kuo TR. Antimicrobial Gold Nanoclusters: Recent Developments and Future Perspectives. Int J Mol Sci 2019; 20:E2924. [PMID: 31208013 PMCID: PMC6627976 DOI: 10.3390/ijms20122924] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/09/2019] [Accepted: 06/12/2019] [Indexed: 12/01/2022] Open
Abstract
Bacterial infections have caused serious threats to public health due to the antimicrobial resistance in bacteria. Recently, gold nanoclusters (AuNCs) have been extensively investigated for biomedical applications because of their superior structural and optical properties. Great efforts have demonstrated that AuNCs conjugated with various surface ligands are promising antimicrobial agents owing to their high biocompatibility, polyvalent effect, easy modification and photothermal stability. In this review, we have highlighted the recent achievements for the utilizations of AuNCs as the antimicrobial agents. We have classified the antimicrobial AuNCs by their surface ligands including small molecules (< 900 Daltons) and macromolecules (> 900 Daltons). Moreover, the antimicrobial activities and mechanisms of AuNCs have been introduced into two main categories of small molecules and macromolecules, respectively. In accordance with the advancements of antimicrobial AuNCs, we further provided conclusions of current challenges and recommendations of future perspectives of antimicrobial AuNCs for fundamental researches and clinical applications.
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Affiliation(s)
- Sibidou Yougbare
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Ting-Kuang Chang
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Shih-Hua Tan
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Jui-Chi Kuo
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Po-Hsuan Hsu
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Chen-Yen Su
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
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71
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Liu Y, Li R, Xiao X, Wang Z. Antibiotic adjuvants: an alternative approach to overcome multi-drug resistant Gram-negative bacteria. Crit Rev Microbiol 2019; 45:301-314. [PMID: 30985240 DOI: 10.1080/1040841x.2019.1599813] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Antibiotic resistance in Gram-negative pathogens has emerged and constituted a global crisis, thereby novel antibiotics and other anti-infective strategies are urgently needed. However, the growing gap between clinical need and drug innovation, coupled with the membrane permeability barrier in Gram-negative bacteria restricts the discovery of Gram-negative antibiotics. Antibiotic adjuvants approach provides an alternative and complementary strategy for new antibiotic discovery. These compounds restore or potentiate the activity of commonly used antibiotics against multi-drug resistant (MDR) Gram-negative bacteria by targeting resistance or enhancing action of antibiotics. In this review, we first provide a brief overview of antibiotic resistance mechanism in Gram-negative bacteria, which can be used to guide the development of new antibiotic adjuvants. Additionally, we summarize the recent achievements in the search for antibiotic adjuvants based on their modes of action. Lastly, we discuss our perspectives in developing next-generation adjuvants such as broad-spectrum adjuvants and hybridization approach, which would contribute to enrich our arsenal against MDR Gram-negative bacteria.
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Affiliation(s)
- Yuan Liu
- a College of Veterinary Medicine, Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou , Jiangsu , China.,c Institute of Comparative Medicine, Yangzhou University , Yangzhou , Jiangsu , China
| | - Ruichao Li
- a College of Veterinary Medicine, Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou , Jiangsu , China
| | - Xia Xiao
- a College of Veterinary Medicine, Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou , Jiangsu , China
| | - Zhiqiang Wang
- a College of Veterinary Medicine, Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou , Jiangsu , China
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72
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Liu Y, Song M, Ding S, Zhu K. Discovery of Linear Low-Cationic Peptides to Target Methicillin-Resistant Staphylococcus aureus in Vivo. ACS Infect Dis 2019; 5:123-130. [PMID: 30372023 DOI: 10.1021/acsinfecdis.8b00230] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The development and rapid spread of multidrug resistant (MDR) bacteria cause severe public crises. New antibacterial compounds are urgently needed to treat bacterial infections. By circumventing the disadvantages of cationic peptides here, we engineered a short, linear, low-cationic peptide bacaucin-1a, which exhibited remarkable antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). Bacaucin-1a was efficient in the prevention of MRSA associated infections in both in vitro and in vivo models with a unique mode of action. The discovery of low-cationic antibiotic candidates will extend our antibiotic pipeline in the fight against antibiotic resistant bacteria.
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Affiliation(s)
- Yuan Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
| | - Meirong Song
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
| | - Shuangyang Ding
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety and Beijing Laboratory for Food Quality and Safety, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing, China 100193
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73
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Liu Y, Ding S, Shen J, Zhu K. Nonribosomal antibacterial peptides that target multidrug-resistant bacteria. Nat Prod Rep 2019; 36:573-592. [DOI: 10.1039/c8np00031j] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes the development of nonribosomal antibacterial peptides from untapped sources that target multidrug-resistant bacteria.
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Affiliation(s)
- Yuan Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Veterinary Medicine
- China Agricultural University
- Beijing 100193
- China
| | - Shuangyang Ding
- National Center for Veterinary Drug Safety Evaluation
- College of Veterinary Medicine
- China Agricultural University
- China
| | - Jianzhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Veterinary Medicine
- China Agricultural University
- Beijing 100193
- China
| | - Kui Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Veterinary Medicine
- China Agricultural University
- Beijing 100193
- China
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74
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Zhou C, Chia GWN, Ho JCS, Seviour T, Sailov T, Liedberg B, Kjelleberg S, Hinks J, Bazan GC. Informed Molecular Design of Conjugated Oligoelectrolytes To Increase Cell Affinity and Antimicrobial Activity. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Zhou
- School of Chemical and Biomedical Engineering Singapore
| | - Geraldine W. N. Chia
- Interdisciplinary Graduate School Singapore
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
| | - James C. S. Ho
- Centre for Biomimetic Sensor ScienceSchool of Materials Science & EngineeringNanyang Technological University (NTU) Singapore 639798 Singapore
| | - Thomas Seviour
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
| | - Talgat Sailov
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
| | - Bo Liedberg
- Interdisciplinary Graduate School Singapore
- Centre for Biomimetic Sensor ScienceSchool of Materials Science & EngineeringNanyang Technological University (NTU) Singapore 639798 Singapore
| | - Staffan Kjelleberg
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
| | - Jamie Hinks
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
| | - Guillermo C. Bazan
- School of Chemical and Biomedical Engineering Singapore
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE) Singapore
- Center for Polymers and Organic SolidsDepartments of Chemistry & Biochemistry and MaterialsUniversity of California, Santa Barbara Santa Barbara CA 93106 USA
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75
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Zhou C, Chia GWN, Ho JCS, Seviour T, Sailov T, Liedberg B, Kjelleberg S, Hinks J, Bazan GC. Informed Molecular Design of Conjugated Oligoelectrolytes To Increase Cell Affinity and Antimicrobial Activity. Angew Chem Int Ed Engl 2018; 57:8069-8072. [PMID: 29707869 DOI: 10.1002/anie.201803103] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/27/2018] [Indexed: 12/21/2022]
Abstract
Membrane-intercalating conjugated oligoelectrolytes (COEs) are emerging as potential alternatives to conventional, yet increasingly ineffective, antibiotics. Three readily accessible COEs, belonging to an unreported series containing a stilbene core, namely D4, D6, and D8, were designed and synthesized so that the hydrophobicity increases with increasing side-chain length. Decreased aqueous solubility correlates with increased uptake by E. coli. The minimum inhibitory concentration (MIC) of D8 is 4 μg mL-1 against both E. coli and E. faecalis, with an effective uptake of 72 %. In contrast, the MIC value of the shortest COE, D4, is 128 μg mL-1 owing to the low cellular uptake of 3 %. These findings demonstrate the application of rational design to generate efficacious antimicrobial COEs that have potential as low-cost antimicrobial agents.
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Affiliation(s)
- Cheng Zhou
- School of Chemical and Biomedical Engineering, Singapore
| | - Geraldine W N Chia
- Interdisciplinary Graduate School, Singapore.,Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore
| | - James C S Ho
- Centre for Biomimetic Sensor Science, School of Materials Science & Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Thomas Seviour
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore
| | - Talgat Sailov
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore
| | - Bo Liedberg
- Interdisciplinary Graduate School, Singapore.,Centre for Biomimetic Sensor Science, School of Materials Science & Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Staffan Kjelleberg
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore
| | - Jamie Hinks
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore
| | - Guillermo C Bazan
- School of Chemical and Biomedical Engineering, Singapore.,Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Singapore.,Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA
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76
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Xie Y, Liu Y, Yang J, Liu Y, Hu F, Zhu K, Jiang X. Gold Nanoclusters for Targeting Methicillin-Resistant Staphylococcus aureus In Vivo. Angew Chem Int Ed Engl 2018; 57:3958-3962. [PMID: 29423995 DOI: 10.1002/anie.201712878] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/22/2018] [Indexed: 01/23/2023]
Abstract
Widespread multidrug resistance caused by the abuse of antibiotics calls for novel strategies and materials. Gold nanoclusters (AuNCs) are scarcely explored for combating multidrug-resistant (MDR) bacteria in vivo. We herein synthesized a novel class of AuNCs, namely quaternary ammonium (QA) capped AuNCs (QA-AuNCs) as potent antibiotics selectively targeting MDR Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE), in vivo. QA-AuNCs kill bacteria through a combined physicochemical mechanism, and show excellent therapeutic effects in both a skin infection model and a bacteremia model induced by MRSA. In addition, owing to their intense fluorescence, QA-AuNCs can be used for the discrimination of live/dead bacteria and bacteria counting, suggesting their potential for clinical theranostics.
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Affiliation(s)
- Yangzhouyun Xie
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Liu
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junchuan Yang
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, China
| | - Yuan Liu
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Fupin Hu
- Institute of Antibiotic, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Kui Zhu
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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77
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Xie Y, Liu Y, Yang J, Liu Y, Hu F, Zhu K, Jiang X. Gold Nanoclusters for Targeting Methicillin-Resistant Staphylococcus aureus
In Vivo. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yangzhouyun Xie
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; No. 11 Zhongguancun Beiyitiao Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yong Liu
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; No. 11 Zhongguancun Beiyitiao Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Junchuan Yang
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; No. 11 Zhongguancun Beiyitiao Beijing 100190 China
| | - Yuan Liu
- College of Veterinary Medicine; China Agricultural University; Yuanmingyuan West Road 2 Beijing 100193 China
| | - Fupin Hu
- Institute of Antibiotic, Huashan Hospital; Fudan University; Shanghai 200040 China
| | - Kui Zhu
- College of Veterinary Medicine; China Agricultural University; Yuanmingyuan West Road 2 Beijing 100193 China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology & Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; CAS Center for Excellence in Nanoscience; National Center for NanoScience and Technology; No. 11 Zhongguancun Beiyitiao Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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CP and CP-PGN protect mice against MRSA infection by inducing M1 macrophages. Sci Rep 2017; 7:16877. [PMID: 29203871 PMCID: PMC5715006 DOI: 10.1038/s41598-017-17001-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/20/2017] [Indexed: 12/11/2022] Open
Abstract
Corynebacterium pyruviciproducens (C. pyruviciproducens, CP), as a newly discovered immunomodulator, has been confirmed to have a stronger immunoregulation than Propionibacterium acnes (P. acnes) of the traditional immune adjuvant, by previous experiments with model antigen ovalbumin and sheep red blood cells. Here, it was designed to assess its ability to resist methicillin-resistant Staphylococcus aureus (MRSA), since MRSA as a vital gram positive pathogen is characterized by high morbidity and mortality. In this report, it was indicated that C. pyruviciproducens and its peptidoglycan (CP-PGN) could help to be against bloodstream infection of MRSA with raised survival rate, decreased bacteria load and alleviated systemic inflammation, and these effects of CP-PGN were more pronounced. However, the whole CP was inclined to prevent localized abdominal infection of MRSA from progressing to a systemic infection. And they showed the potential as a therapeutic drug alone or combined with vancomycin. The diversity of capacity of activating macrophages induced by CP and CP-PGN may result in distinct resistance to MRSA in different infection models. Furthermore, both CP and CP-PGN induced M1 macrophages. In conclusion, CP and its PGN could act as promising immune agents to treat and prevent MRSA infection.
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de la Fuente-Nunez C, Torres MD, Mojica FJ, Lu TK. Next-generation precision antimicrobials: towards personalized treatment of infectious diseases. Curr Opin Microbiol 2017. [PMID: 28623720 DOI: 10.1016/j.mib.2017.05.014] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Antibiotics started to be used almost 90 years ago to eradicate life-threatening infections. The urgency of the problem required rapid, broad-spectrum elimination of infectious agents. Since their initial discovery, these antimicrobials have saved millions of lives. However, they are not exempt from side effects, which include the indiscriminate disruption of the beneficial microbiota. Recent technological advances have enabled the development of antimicrobials that can selectively target a gene, a cellular process, or a microbe of choice. These strategies bring us a step closer to developing personalized therapies that exclusively remove disease-causing infectious agents. Here, we advocate the preservation of our beneficial microbes and provide an overview of promising alternatives to broad-spectrum antimicrobials. Specifically, we emphasize nucleic acid and peptide-based systems as a foundation for next-generation alternatives to antibiotics that do not challenge our microbiota and may help to mitigate the spread of resistance.
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Affiliation(s)
- Cesar de la Fuente-Nunez
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA, USA; Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Harvard Biophysics Program, Harvard University, Boston, MA, USA; The Center for Microbiome Informatics and Therapeutics, Cambridge, MA, USA.
| | - Marcelo Dt Torres
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA, USA; Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Harvard Biophysics Program, Harvard University, Boston, MA, USA; The Center for Microbiome Informatics and Therapeutics, Cambridge, MA, USA; Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Francisco Jm Mojica
- Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, Pavilion 12, 03080, Alicante, Spain
| | - Timothy K Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA, USA; Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Harvard Biophysics Program, Harvard University, Boston, MA, USA; The Center for Microbiome Informatics and Therapeutics, Cambridge, MA, USA.
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