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Yang Y, Xie S, He F, Xu Y, Wang Z, Ihsan A, Wang X. Recent development and fighting strategies for lincosamide antibiotic resistance. Clin Microbiol Rev 2024; 37:e0016123. [PMID: 38634634 DOI: 10.1128/cmr.00161-23] [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] [Indexed: 04/19/2024] Open
Abstract
SUMMARYLincosamides constitute an important class of antibiotics used against a wide range of pathogens, including methicillin-resistant Staphylococcus aureus. However, due to the misuse of lincosamide and co-selection pressure, the resistance to lincosamide has become a serious concern. It is urgently needed to carefully understand the phenomenon and mechanism of lincosamide resistance to effectively prevent and control lincosamide resistance. To date, six mobile lincosamide resistance classes, including lnu, cfr, erm, vga, lsa, and sal, have been identified. These lincosamide resistance genes are frequently found on mobile genetic elements (MGEs), such as plasmids, transposons, integrative and conjugative elements, genomic islands, and prophages. Additionally, MGEs harbor the genes that confer resistance not only to antimicrobial agents of other classes but also to metals and biocides. The ultimate purpose of discovering and summarizing bacterial resistance is to prevent, control, and combat resistance effectively. This review highlights four promising strategies, including chemical modification of antibiotics, the development of antimicrobial peptides, the initiation of bacterial self-destruct program, and antimicrobial stewardship, to fight against resistance and safeguard global health.
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Affiliation(s)
- Yingying Yang
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei, China
- MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shiyu Xie
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Fangjing He
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yindi Xu
- Institute of Animal Husbandry Research, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Zhifang Wang
- Institute of Animal Husbandry Research, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Awais Ihsan
- Department of Biosciences, COMSATS University Islamabad, Sahiwal campus, Islamabad, Pakistan
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei, China
- MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
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2
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Chen H, Gao J, Wang Q, Liu Y, Wu L, Fu X, Guo Y, Wang H, Wang Y. The synergistic effect of periodate/ferrate (VI) system on disinfection of antibiotic resistant bacteria and removal of antibiotic resistant genes: The dominance of Fe (IV)/Fe (V). JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134132. [PMID: 38554510 DOI: 10.1016/j.jhazmat.2024.134132] [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: 02/11/2024] [Revised: 03/12/2024] [Accepted: 03/24/2024] [Indexed: 04/01/2024]
Abstract
The proliferation of antibiotic resistant genes (ARGs) and antibiotic resistant bacteria (ARB) caused by antibiotic abuse has raised concerns about the global infectious-disease crisis. This study employed periodate (PI)/ferrate (VI) (Fe (VI)) system to disinfect Gram-negative ARB (Escherichia coli DH5α) and Gram-positive bacteria (Bacillus subtilis ATCC6633). The PI/Fe (VI) system could inactivate 1 × 108 CFU/mL of Gram-negative ARB and Gram-positive bacteria by 4.0 and 2.8 log in 30 min. Neutral and acidic pH, increase of PI dosage and Fe (VI) dosage had positive impacts on the inactivation efficiency of ARB, while alkaline solution and the coexistence of 10 mM Cl-, NO3-, SO42- and 20 mg/L humic acid had slightly negative impacts. The reactive species generated by PI/Fe (VI) system could disrupt the integrity of cell membrane and wall, leading to oxidative stress and lipid peroxidation. Intracellular hereditary substance, including DNA and ARGs (tetA), would leak into the external environment through damaged cells and be degraded. The electron spin resonance analysis and quenching experiments indicated that Fe (IV)/Fe (V) played a leading role in disinfection. Meanwhile, PI/Fe (VI) system also had an efficient removal effect on sulfadiazine, which was expected to inhibit the ARGs transmission from the source.
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Affiliation(s)
- Hao Chen
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Jingfeng Gao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Qian Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Ying Liu
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Lei Wu
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Xiaoyu Fu
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yi Guo
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Hanyi Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yuxuan Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, China
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3
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Duffey M, Jumde RP, da Costa RM, Ropponen HK, Blasco B, Piddock LJ. Extending the Potency and Lifespan of Antibiotics: Inhibitors of Gram-Negative Bacterial Efflux Pumps. ACS Infect Dis 2024; 10:1458-1482. [PMID: 38661541 PMCID: PMC11091901 DOI: 10.1021/acsinfecdis.4c00091] [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: 02/02/2024] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024]
Abstract
Efflux is a natural process found in all prokaryotic and eukaryotic cells that removes a diverse range of substrates from inside to outside. Many antibiotics are substrates of bacterial efflux pumps, and modifications to the structure or overexpression of efflux pumps are an important resistance mechanism utilized by many multidrug-resistant bacteria. Therefore, chemical inhibition of bacterial efflux to revitalize existing antibiotics has been considered a promising approach for antimicrobial chemotherapy over two decades, and various strategies have been employed. In this review, we provide an overview of bacterial multidrug resistance (MDR) efflux pumps, of which the resistance nodulation division (RND) efflux pumps are considered the most clinically relevant in Gram-negative bacteria, and describe over 50 efflux inhibitors that target such systems. Although numerous efflux inhibitors have been identified to date, none have progressed into clinical use because of formulation, toxicity, and pharmacokinetic issues or a narrow spectrum of inhibition. For these reasons, the development of efflux inhibitors has been considered a difficult and complex area of research, and few active preclinical studies on efflux inhibitors are in progress. However, recently developed tools, including but not limited to computational tools including molecular docking models, offer hope that further research on efflux inhibitors can be a platform for research and development of new bacterial efflux inhibitors.
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Affiliation(s)
- Maëlle Duffey
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
| | - Ravindra P. Jumde
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
| | - Renata M.A. da Costa
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
| | - Henni-Karoliina Ropponen
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
| | - Benjamin Blasco
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
| | - Laura J.V. Piddock
- Global
Antibiotic Research & Development Partnership (GARDP), Chemin Camille-Vidart 15, 1202 Geneva, Switzerland
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4
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Zhang M, Lin S, Han L, Zhang J, Liu S, Yang X, Wang R, Yang X, Yi Y. Safety and efficacy evaluation of halicin as an effective drug for inhibiting intestinal infections. Front Pharmacol 2024; 15:1389293. [PMID: 38783954 PMCID: PMC11111955 DOI: 10.3389/fphar.2024.1389293] [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: 02/21/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
Halicin, the first antibacterial agent discovered by artificial intelligence, exerts broad-spectrum antibacterial effects and has a unique structure. Our study found that halicin had a good inhibitory effect on clinical isolates of drug-resistant strains and Clostridium perfringens (C. perfringens). The safety of halicin was evaluated by acute oral toxicity, genotoxicity and subchronic toxicity studies. The results of acute toxicity test indicated that halicin, as a low-toxicity compound, had an LD50 of 2018.3 mg/kg. The results of sperm malformation, bone marrow chromosome aberration and cell micronucleus tests showed that halicin had no obvious genotoxicity. However, the results of the 90-day subchronic toxicity test indicated that the test rats exhibited weight loss and slight renal inflammation at a high dose of 201.8 mg/kg. Teratogenicity of zebrafish embryos showed that halicin had no significant teratogenicity. Analysis of intestinal microbiota showed that halicin had a significant effect on the intestinal microbial composition, but caused a faster recovery. Furthermore, drug metabolism experiments showed that halicin was poorly absorbed and quickly eliminated in vivo. Our study found that halicin had a good therapeutic effect on intestinal infection model of C. perfringens. These results show the feasibility of developing oral halicin as a clinical candidate drug for treating intestinal infections.
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Affiliation(s)
- Maolu Zhang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan, Shandong, China
| | - Shuqian Lin
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan, Shandong, China
| | - Lianquan Han
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Jiaming Zhang
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan, Shandong, China
| | - Shaoning Liu
- Animal Products Quality and Safety Center of Shandong Province, Jinan, Shandong, China
| | - Xiuzhen Yang
- Animal Products Quality and Safety Center of Shandong Province, Jinan, Shandong, China
| | - Ruiming Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Xiaohui Yang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Yunpeng Yi
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan, Shandong, China
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5
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Savchuk M, Vo-Thanh G, Oudeyer S, Beucher H, Brière JF. Vinylogous and stereoselective domino synthesis of pyrano[2,3- c]pyrroles from alkylidene meldrum's acids. Org Biomol Chem 2024; 22:2948-2952. [PMID: 38482880 DOI: 10.1039/d4ob00233d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
A domino Vinylogous aza-Michael-Aldol-Cyclocondensation (aza-VMAC) reaction was achieved with a series of alkylidene Meldrum's acid derivatives under simple operational conditions paving the way to novel pyrano[2,3-c]pyrroles in an excellent diasteroselectivity (>96 : 4), encompassing the relative control of three contiguous stereocenters.
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Affiliation(s)
- Mariia Savchuk
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
| | - Giang Vo-Thanh
- Institut de Chimie Moléculaire et des Matériaux d'Orsay. CNRS UMR 8182, Université Paris Saclay, 91405 Orsay Cedex, France
| | - Sylvain Oudeyer
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
| | - Hélène Beucher
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
| | - Jean-François Brière
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
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Ampomah-Wireko M, Chen S, Li R, Gao C, Wang M, Qu Y, Kong H, Nininahazwe L, Zhang E. Recent advances in the exploration of oxazolidinone scaffolds from compound development to antibacterial agents and other bioactivities. Eur J Med Chem 2024; 269:116326. [PMID: 38513340 DOI: 10.1016/j.ejmech.2024.116326] [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: 01/11/2024] [Revised: 02/26/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
Bacterial infections cause a variety of life-threatening diseases, and the continuous evolution of drug-resistant bacteria poses an increasing threat to current antimicrobial regimens. Gram-positive bacteria (GPB) have a wide range of genetic capabilities that allow them to adapt to and develop resistance to practically all existing antibiotics. Oxazolidinones, a class of potent bacterial protein synthesis inhibitors with a unique mechanism of action involving inhibition of bacterial ribosomal translation, has emerged as the antibiotics of choice for the treatment of drug-resistant GPB infections. In this review, we discussed the oxazolidinone antibiotics that are currently on the market and in clinical development, as well as an updated synopsis of current advances on their analogues, with an emphasis on innovative strategies for structural optimization of linezolid, structure-activity relationship (SAR), and safety properties. We also discussed recent efforts aimed at extending the activity of oxazolidinones to gram-negative bacteria (GNB), antitumor, and coagulation factor Xa. Oxazolidinone antibiotics can accumulate in GNB by a conjugation to siderophore-mediated β-lactamase-triggered release, making them effective against GNB.
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Affiliation(s)
- Maxwell Ampomah-Wireko
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Shengcong Chen
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ruirui Li
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Chen Gao
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Meng Wang
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ye Qu
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Hongtao Kong
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - Lauraine Nininahazwe
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China
| | - En Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, PR China; Pingyuan Laboratory (Zhengzhou University), PR China.
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7
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Leszczyńska D, Hallmann A, Treder N, Bączek T, Roszkowska A. Recent advances in the use of SPME for drug analysis in clinical, toxicological, and forensic medicine studies. Talanta 2024; 270:125613. [PMID: 38159351 DOI: 10.1016/j.talanta.2023.125613] [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: 10/12/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Solid-phase microextraction (SPME) has gained attention as a simple, fast, and non-exhaustive extraction technique, as its unique features enable its use for the extraction of many classes of drugs from biological matrices. This sample-preparation approach consolidates sampling and sample preparation into a single step, in addition to providing analyte preconcentration and sample clean-up. These features have helped SPME become an integral part of several analytical protocols for monitoring drug concentrations in human matrices in clinical, toxicological, and forensic medicine studies. Over the years, researchers have continued to develop the SPME technique, resulting in the introduction of novel sorbents and geometries, which have resulted in improved extraction efficiencies. This review summarizes developments and applications of SPME published between 2016 and 2022, specifically in relation to the analysis of central nervous system drugs, drugs used to treat cardiovascular disorders and bacterial infections, and drugs used in immunosuppressive and anticancer therapies.
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Affiliation(s)
- Dagmara Leszczyńska
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, 80-211, Poland
| | - Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, 80-211, Poland
| | - Natalia Treder
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gdańsk, 80-416, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gdańsk, 80-416, Poland
| | - Anna Roszkowska
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gdańsk, 80-416, Poland.
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8
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Malik AK, Singh C, Tiwari P, Verma D, Mehata AK, Vikas, Setia A, Mukherjee A, Muthu MS. Nanofibers of N,N,N-trimethyl chitosan capped bimetallic nanoparticles: Preparation, characterization, wound dressing and in vivo treatment of MDR microbial infection and tracking by optical and photoacoustic imaging. Int J Biol Macromol 2024; 263:130154. [PMID: 38354928 DOI: 10.1016/j.ijbiomac.2024.130154] [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: 11/25/2023] [Revised: 01/26/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
Recent advancements in wound care have led to the development of interactive wound dressings utilizing nanotechnology, aimed at enhancing healing and combating bacterial infections while adhering to established protocols. Our novel wound dressings consist of N,N,N-trimethyl chitosan capped gold‑silver nanoparticles (Au-Ag-TMC-NPs), with a mean size of 108.3 ± 8.4 nm and a zeta potential of +54.4 ± 1.8 mV. These optimized nanoparticles exhibit potent antibacterial and antifungal properties, with minimum inhibitory concentrations ranging from 0.390 μg ml-1 to 3.125 μg ml-1 and also exhibited promising zones of inhibition against multi-drug resistant strains of S. aureus, E. coli, P. aeruginosa, and C. albicans. Microbial transmission electron microscopy reveals substantial damage to cell walls and DNA condensation post-treatment. Furthermore, the nanoparticles demonstrate remarkable inhibition of microbial efflux pumps and are non-hemolytic in human blood. Incorporated into polyvinyl alcohol/chitosan nanofibers, they form Au-Ag-TMC-NPs-NFs with diameters of 100-350 nm, facilitating efficient antimicrobial wound dressing. In vivo studies on MDR microbial-infected wounds in mice showed 99.34 % wound healing rate within 12 days, corroborated by analyses of wound marker protein expression levels and advanced imaging techniques such as ultrasound/photoacoustic imaging, providing real-time visualization and blood flow assessment for a comprehensive understanding of the dynamic wound healing processes.
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Affiliation(s)
- Ankit Kumar Malik
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Chandrashekhar Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Punit Tiwari
- Department of Microbiology, Institute of Medical Sciences, BHU, Varanasi 221005, UP, India
| | - Dipti Verma
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India
| | - Abhishesh Kumar Mehata
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Vikas
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Aseem Setia
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Ashim Mukherjee
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India
| | - Madaswamy S Muthu
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India.
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9
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Armillei MK, Lomakin IB, Del Rosso JQ, Grada A, Bunick CG. Scientific Rationale and Clinical Basis for Clindamycin Use in the Treatment of Dermatologic Disease. Antibiotics (Basel) 2024; 13:270. [PMID: 38534705 DOI: 10.3390/antibiotics13030270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 03/28/2024] Open
Abstract
Clindamycin is a highly effective antibiotic of the lincosamide class. It has been widely used for decades to treat a range of skin and soft tissue infections in dermatology and medicine. Clindamycin is commonly prescribed for acne vulgaris, with current practice standards utilizing fixed-combination topicals containing clindamycin that prevent Cutibacterium acnes growth and reduce inflammation associated with acne lesion formation. Certain clinical presentations of folliculitis, rosacea, staphylococcal infections, and hidradenitis suppurativa are also responsive to clindamycin, demonstrating its suitability and versatility as a treatment option. This review describes the use of clindamycin in dermatological practice, the mechanism of protein synthesis inhibition by clindamycin at the level of the bacterial ribosome, and clindamycin's anti-inflammatory properties with a focus on its ability to ameliorate inflammation in acne. A comparison of the dermatologic indications for similarly utilized antibiotics, like the tetracycline class antibiotics, is also presented. Finally, this review addresses both the trends and mechanisms for clindamycin and antibiotic resistance, as well as the current clinical evidence in support of the continued, targeted use of clindamycin in dermatology.
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Affiliation(s)
- Maria K Armillei
- Program in Translational Biomedicine, Yale School of Medicine, Yale University, New Haven, CT 06511, USA
| | - Ivan B Lomakin
- Department of Dermatology, Yale University, New Haven, CT 06520, USA
| | - James Q Del Rosso
- College of Osteopathic Medicine, Touro University Nevada, Henderson, NV 89014, USA
- JDR Dermatology Research, Las Vegas, NV 89148, USA
- Clinical Research and Strategic Development, Advanced Dermatology and Cosmetic Surgery, Maitland, FL 32751, USA
| | - Ayman Grada
- Department of Dermatology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Christopher G Bunick
- Program in Translational Biomedicine, Yale School of Medicine, Yale University, New Haven, CT 06511, USA
- Department of Dermatology, Yale University, New Haven, CT 06520, USA
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10
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Wei X, Guo J, Geng X, Xue B, Huang S, Yuan Z. The Combination of Membrane Disruption and FtsZ Targeting by a Chemotherapeutic Hydrogel Synergistically Combats Pathogens Infections. Adv Healthc Mater 2024:e2304600. [PMID: 38491859 DOI: 10.1002/adhm.202304600] [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: 01/23/2024] [Revised: 02/23/2024] [Indexed: 03/18/2024]
Abstract
The emergence of multidrug-resistant (MDR) bacteria poses a significant challenge to global health. Due to a shortage of antibiotics, alternative therapeutic strategies are urgently needed. Unfortunately, colistin, the last-resort antibiotic, has unavoidable nephrotoxicity and hepatotoxicity, and its single killing mechanism is prone to drug resistance. To address this challenge, a promising combinatorial approach that includes colistin, a membrane-disrupting antimicrobial agent, and chelerythrine (CHE), a FtsZ protein inhibitor is proposed. This approach significantly reduces antibiotic dose and development of resistance, leading to almost complete inactivation of MDR pathogens in vitro. To address solubility issues and ensure transport, the antimicrobial hydrogel system LNP-CHE-CST@hydrogel, which induced reactive oxygen species (ROS) and apoptosis-like cell death by targeting the FtsZ protein, is used. In an in vivo mouse skin infection model, the combination therapy effectively eliminated MDR bacteria within 24 h, as monitored by fluorescence tracking. The findings demonstrate a promising approach for developing multifunctional hydrogels to combat MDR bacterial infections.
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Affiliation(s)
- Xianyuan Wei
- Faculty of Health Sciences and Center for Cognitive and Brain Sciences, University of Macau, Macau, SAR, 999078, China
| | - Jintong Guo
- Faculty of Health Sciences and Center for Cognitive and Brain Sciences, University of Macau, Macau, SAR, 999078, China
| | - Xiaorui Geng
- Faculty of Health Sciences and Center for Cognitive and Brain Sciences, University of Macau, Macau, SAR, 999078, China
| | - Bin Xue
- Faculty of Health Sciences and Center for Cognitive and Brain Sciences, University of Macau, Macau, SAR, 999078, China
- Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Intense Laser Application Technology and College of Engineering Physics, Shenzhen Technology University, Shenzhen, 518118, China
| | - Shaohui Huang
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 101499, China
- LightEdge Technologies Limited, Zhongshan, Guangdong, 528403, China
| | - Zhen Yuan
- Faculty of Health Sciences and Center for Cognitive and Brain Sciences, University of Macau, Macau, SAR, 999078, China
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11
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Mori T, Abe I. Lincosamide Antibiotics: Structure, Activity, and Biosynthesis. Chembiochem 2024; 25:e202300840. [PMID: 38165257 DOI: 10.1002/cbic.202300840] [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: 12/12/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/03/2024]
Abstract
Lincosamides are naturally occurring antibiotics isolated from Streptomyces sp. Currently, lincomycin A and its semisynthetic analogue clindamycin are used as clinical drugs. Due to their unique structures and remarkable biological activities, derivatizations of lincosamides via semi-synthesis and biosynthetic studies have been reported. This review summarizes the structures and biological activities of lincosamides, and the recent studies of lincosamide biosynthetic enzymes.
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Grants
- JP20H00490 Ministry of Education, Culture, Sports, Science and Technology, Japan
- JP22H05126 Ministry of Education, Culture, Sports, Science and Technology, Japan
- JP23H00393 Ministry of Education, Culture, Sports, Science and Technology, Japan
- JP23H02641 Ministry of Education, Culture, Sports, Science and Technology, Japan
- JPNP20011 New Energy and Industrial Technology Development Organization
- JP21ak0101164 New Energy and Industrial Technology Development Organization
- JP23ama121027 New Energy and Industrial Technology Development Organization
- JPMJPR20DA Japan Science and Technology Agency
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Affiliation(s)
- Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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12
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Wu KJY, Tresco BIC, Ramkissoon A, Aleksandrova EV, Syroegin EA, See DNY, Liow P, Dittemore GA, Yu M, Testolin G, Mitcheltree MJ, Liu RY, Svetlov MS, Polikanov YS, Myers AG. An antibiotic preorganized for ribosomal binding overcomes antimicrobial resistance. Science 2024; 383:721-726. [PMID: 38359125 DOI: 10.1126/science.adk8013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/18/2024] [Indexed: 02/17/2024]
Abstract
We report the design conception, chemical synthesis, and microbiological evaluation of the bridged macrobicyclic antibiotic cresomycin (CRM), which overcomes evolutionarily diverse forms of antimicrobial resistance that render modern antibiotics ineffective. CRM exhibits in vitro and in vivo efficacy against both Gram-positive and Gram-negative bacteria, including multidrug-resistant strains of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. We show that CRM is highly preorganized for ribosomal binding by determining its density functional theory-calculated, solution-state, solid-state, and (wild-type) ribosome-bound structures, which all align identically within the macrobicyclic subunits. Lastly, we report two additional x-ray crystal structures of CRM in complex with bacterial ribosomes separately modified by the ribosomal RNA methylases, chloramphenicol-florfenicol resistance (Cfr) and erythromycin-resistance ribosomal RNA methylase (Erm), revealing concessive adjustments by the target and antibiotic that permit CRM to maintain binding where other antibiotics fail.
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Affiliation(s)
- Kelvin J Y Wu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Ben I C Tresco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Antonio Ramkissoon
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Elena V Aleksandrova
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Egor A Syroegin
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Dominic N Y See
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Priscilla Liow
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Georgia A Dittemore
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Meiyi Yu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Giambattista Testolin
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Matthew J Mitcheltree
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Richard Y Liu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Maxim S Svetlov
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Yury S Polikanov
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Andrew G Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
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13
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Zhou Y, Xu L, Sun X, Zhan W, Liang G. In situ peptide assemblies for bacterial infection imaging and treatment. NANOSCALE 2024; 16:3211-3225. [PMID: 38288668 DOI: 10.1039/d3nr05557d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Bacterial infections, especially antibiotic-resistant ones, remain a major threat to human health. Advances in nanotechnology have led to the development of numerous antimicrobial nanomaterials. Among them, in situ peptide assemblies, formed by biomarker-triggered self-assembly of peptide-based building blocks, have received increasing attention due to their unique merits of good spatiotemporal controllability and excellent disease accumulation and retention. In recent years, a variety of "turn on" imaging probes and activatable antibacterial agents based on in situ peptide assemblies have been developed, providing promising alternatives for the treatment and diagnosis of bacterial infections. In this review, we introduce representative design strategies for in situ peptide assemblies and highlight the bacterial infection imaging and treatment applications of these supramolecular materials. Besides, current challenges in this field are proposed.
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Affiliation(s)
- Yanyan Zhou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Department of Physics, Nanjing University, Nanjing 210093, China
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Lingling Xu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Xianbao Sun
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Wenjun Zhan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Gaolin Liang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
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14
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Wong F, Zheng EJ, Valeri JA, Donghia NM, Anahtar MN, Omori S, Li A, Cubillos-Ruiz A, Krishnan A, Jin W, Manson AL, Friedrichs J, Helbig R, Hajian B, Fiejtek DK, Wagner FF, Soutter HH, Earl AM, Stokes JM, Renner LD, Collins JJ. Discovery of a structural class of antibiotics with explainable deep learning. Nature 2024; 626:177-185. [PMID: 38123686 PMCID: PMC10866013 DOI: 10.1038/s41586-023-06887-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
The discovery of novel structural classes of antibiotics is urgently needed to address the ongoing antibiotic resistance crisis1-9. Deep learning approaches have aided in exploring chemical spaces1,10-15; these typically use black box models and do not provide chemical insights. Here we reasoned that the chemical substructures associated with antibiotic activity learned by neural network models can be identified and used to predict structural classes of antibiotics. We tested this hypothesis by developing an explainable, substructure-based approach for the efficient, deep learning-guided exploration of chemical spaces. We determined the antibiotic activities and human cell cytotoxicity profiles of 39,312 compounds and applied ensembles of graph neural networks to predict antibiotic activity and cytotoxicity for 12,076,365 compounds. Using explainable graph algorithms, we identified substructure-based rationales for compounds with high predicted antibiotic activity and low predicted cytotoxicity. We empirically tested 283 compounds and found that compounds exhibiting antibiotic activity against Staphylococcus aureus were enriched in putative structural classes arising from rationales. Of these structural classes of compounds, one is selective against methicillin-resistant S. aureus (MRSA) and vancomycin-resistant enterococci, evades substantial resistance, and reduces bacterial titres in mouse models of MRSA skin and systemic thigh infection. Our approach enables the deep learning-guided discovery of structural classes of antibiotics and demonstrates that machine learning models in drug discovery can be explainable, providing insights into the chemical substructures that underlie selective antibiotic activity.
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Affiliation(s)
- Felix Wong
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Integrated Biosciences, San Carlos, CA, USA
| | - Erica J Zheng
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Chemical Biology, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Jacqueline A Valeri
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Nina M Donghia
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Melis N Anahtar
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Satotaka Omori
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Integrated Biosciences, San Carlos, CA, USA
| | - Alicia Li
- Integrated Biosciences, San Carlos, CA, USA
| | - Andres Cubillos-Ruiz
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Aarti Krishnan
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Wengong Jin
- Eric and Wendy Schmidt Center, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Abigail L Manson
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jens Friedrichs
- Leibniz Institute of Polymer Research and the Max Bergmann Center of Biomaterials, Dresden, Germany
| | - Ralf Helbig
- Leibniz Institute of Polymer Research and the Max Bergmann Center of Biomaterials, Dresden, Germany
| | - Behnoush Hajian
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Dawid K Fiejtek
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Florence F Wagner
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Holly H Soutter
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Ashlee M Earl
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jonathan M Stokes
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biochemistry and Biomedical Sciences, Michael G. DeGroote Institute for Infectious Disease Research and David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, Ontario, Canada
| | - Lars D Renner
- Leibniz Institute of Polymer Research and the Max Bergmann Center of Biomaterials, Dresden, Germany
| | - James J Collins
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA.
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15
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Ge W, Li Z, Yang Y, Liu X, Zhu Z, Bai L, Qin Z, Xu X, Li J, Li S. Synthesis and antibacterial activity of FST and its effects on inflammatory response and intestinal barrier function in mice infected with Escherichia coli O78. Int Immunopharmacol 2024; 127:111386. [PMID: 38109839 DOI: 10.1016/j.intimp.2023.111386] [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: 10/10/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
Pathogenic Escherichia coli (E. coli) can cause intestinal diseases in humans and livestock, damage the intestinal barrier, increase systemic inflammation, and seriously threaten human health and the development of animal husbandry. In this study, we designed and synthesized a novel conjugate florfenicol sulfathiazole (FST) based on drug combination principles, and investigated its antibacterial activity in vitro and its protective effect on inflammatory response and intestinal barrier function in E. coli O78-infected mice in vivo. The results showed that FST had superior antibacterial properties and minimal cytotoxicity compared with its prodrugs as florfenicol and sulfathiazole. FST protected mice from lethal E. coli infection, reduced clinical signs of inflammation, reduced weight loss, alleviated intestinal structural damage. FST decreased the expression of inflammatory cytokines IL-1β, IL-6, TNF-α, and increased the expression of claudin-1, Occludin, and ZO-1 in the jejunum, improved the intestinal barrier function, and promoted the absorption of nutrients. FST also inhibited the expression of TLR4, MyD88, p-p65, and p-p38 in the jejunum. The study may lay the foundation for the development of FST as new drugs for intestinal inflammation and injury in enteric pathogen infection.
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Affiliation(s)
- Wenbo Ge
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Zhun Li
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Yajun Yang
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Xiwang Liu
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Zhaohan Zhu
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Lixia Bai
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Zhe Qin
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Xiao Xu
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China
| | - Jianyong Li
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China.
| | - Shihong Li
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, China.
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16
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Kang X, Yang X, Bu F, Feng W, Liu F, Xie W, Li G, Wang X. GSH/pH Cascade-Responsive Nanoparticles Eliminate Methicillin-Resistant Staphylococcus aureus Biofilm via Synergistic Photo-Chemo Therapy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3202-3214. [PMID: 38207171 DOI: 10.1021/acsami.3c17198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Bacterial biofilm infection threatens public health, and efficient treatment strategies are urgently required. Phototherapy is a potential candidate, but it is limited because of the off-targeting property, vulnerable activity, and normal tissue damage. Herein, cascade-responsive nanoparticles (NPs) with a synergistic effect of phototherapy and chemotherapy are proposed for targeted elimination of biofilms. The NPs are fabricated by encapsulating IR780 in a polycarbonate-based polymer that contains disulfide bonds in the main chain and a Schiff-base bond connecting vancomycin (Van) pendants in the side chain (denoted as SP-Van@IR780 NPs). SP-Van@IR780 NPs specifically target bacterial biofilms in vitro and in vivo by the mediation of Van pendants. Subsequently, SP-Van@IR780 NPs are decomposed into small size and achieve deep biofilm penetration due to the cleavage of disulfide bonds in the presence of GSH. Thereafter, Van is then detached from the NPs because the Schiff base bonds are broken at low pH when SP@IR780 NPs penetrate into the interior of biofilm. The released Van and IR780 exhibit a robust synergistic effect of chemotherapy and phototherapy, strongly eliminate the biofilm both in vitro and in vivo. Therefore, these biocompatible SP-Van@IR780 NPs provide a new outlook for the therapy of bacterial biofilm infection.
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Affiliation(s)
- Xiaoxu Kang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
- China-Japan Friendship Hospital, Beijing 100029, PR China
| | - Xuankun Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Fanqiang Bu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Wenli Feng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Fang Liu
- China-Japan Friendship Hospital, Beijing 100029, PR China
| | - Wensheng Xie
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Guofeng Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xing Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
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17
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Aleksandrova EV, Wu KJY, Tresco BIC, Syroegin EA, Killeavy EE, Balasanyants SM, Svetlov MS, Gregory ST, Atkinson GC, Myers AG, Polikanov YS. Structural basis of Cfr-mediated antimicrobial resistance and mechanisms to evade it. Nat Chem Biol 2024:10.1038/s41589-023-01525-w. [PMID: 38238495 DOI: 10.1038/s41589-023-01525-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
The bacterial ribosome is an essential drug target as many clinically important antibiotics bind and inhibit its functional centers. The catalytic peptidyl transferase center (PTC) is targeted by the broadest array of inhibitors belonging to several chemical classes. One of the most abundant and clinically prevalent resistance mechanisms to PTC-acting drugs in Gram-positive bacteria is C8-methylation of the universally conserved A2503 nucleobase by Cfr methylase in 23S ribosomal RNA. Despite its clinical importance, a sufficient understanding of the molecular mechanisms underlying Cfr-mediated resistance is currently lacking. Here, we report a set of high-resolution structures of the Cfr-modified 70S ribosome containing aminoacyl- and peptidyl-transfer RNAs. These structures reveal an allosteric rearrangement of nucleotide A2062 upon Cfr-mediated methylation of A2503 that likely contributes to the reduced potency of some PTC inhibitors. Additionally, we provide the structural bases behind two distinct mechanisms of engaging the Cfr-methylated ribosome by the antibiotics iboxamycin and tylosin.
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Affiliation(s)
- Elena V Aleksandrova
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Kelvin J Y Wu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Ben I C Tresco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Egor A Syroegin
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Erin E Killeavy
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI, USA
| | - Samson M Balasanyants
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Maxim S Svetlov
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Steven T Gregory
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI, USA
| | - Gemma C Atkinson
- Department of Experimental Medicine, Lund University, Lund, Sweden
- Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - Andrew G Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
| | - Yury S Polikanov
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, USA.
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA.
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL, USA.
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18
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Li Y, Tang X, Wang N, Zhao Z, Man S, Zhu L, Ma L. Argonaute-DNAzyme tandem biosensing for highly sensitive and simultaneous dual-gene detection of methicillin-resistant Staphylococcus aureus. Biosens Bioelectron 2024; 244:115758. [PMID: 37931440 DOI: 10.1016/j.bios.2023.115758] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), a common zoonotic multidrug-resistant bacterium, puts a great threat to public health and food safety. Rapid and reliable detection of MRSA is crucial to guide effective patient treatment at early stages of infection and control the spread of MRSA infections. Herein, we developed a Simultaneous dual-gene and ulTra-sensitive detection for methicillin-resistant Staphylococcus aureus using Argonaute-DNAzyme tandem Detection (STAND). Simply, loop-mediated isothermal amplification (LAMP) was used for the amplification of the species-specific mecA and nuc gene, followed by STAND enabled by the site-specific cleavage of programable Argonaute. The Argonaute-DNAzyme tandem reaction rendered a conceptually novel signal amplification and transduction module that was more sensitive (1 or 2 order of magnitude higher) than the original Argonaute-based biosensing. With the strategy, the target nucleic acid signals gene were dexterously converted into fluorescent signals. STAND could detect the nuc gene and mecA gene simultaneously in a single reaction with 1 CFU/mL MRSA and a dynamic range from 1 to 108 CFU/mL. This method was confirmed by clinical samples and challenged by identifying contaminated foods and MRSA-infected animals. This work enriches the arsenal of Argonaute-mediated biosensing and presents a novel biosensing strategy to detect pathogenic bacteria with ultra-sensitivity, specificity and on-site capability.
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Affiliation(s)
- Yaru Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Xiaoqin Tang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Nan Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Zhiying Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Shuli Man
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China.
| | - Lei Zhu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.
| | - Long Ma
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China.
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19
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Phelps GA, Cheramie MN, Fernando DM, Selchow P, Meyer CJ, Waidyarachchi SL, Dharuman S, Liu J, Meuli M, Molin MD, Killam BY, Murphy PA, Reeve SM, Wilt LA, Anderson SM, Yang L, Lee RB, Temrikar ZH, Lukka PB, Meibohm B, Polikanov YS, Hobbie SN, Böttger EC, Sander P, Lee RE. Development of 2nd generation aminomethyl spectinomycins that overcome native efflux in Mycobacterium abscessus. Proc Natl Acad Sci U S A 2024; 121:e2314101120. [PMID: 38165935 PMCID: PMC10786304 DOI: 10.1073/pnas.2314101120] [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: 08/17/2023] [Accepted: 11/11/2023] [Indexed: 01/04/2024] Open
Abstract
Mycobacterium abscessus (Mab), a nontuberculous mycobacterial (NTM) species, is an emerging pathogen with high intrinsic drug resistance. Current standard-of-care therapy results in poor outcomes, demonstrating the urgent need to develop effective antimycobacterial regimens. Through synthetic modification of spectinomycin (SPC), we have identified a distinct structural subclass of N-ethylene linked aminomethyl SPCs (eAmSPCs) that are up to 64-fold more potent against Mab over the parent SPC. Mechanism of action and crystallography studies demonstrate that the eAmSPCs display a mode of ribosomal inhibition consistent with SPC. However, they exert their increased antimicrobial activity through enhanced accumulation, largely by circumventing efflux mechanisms. The N-ethylene linkage within this series plays a critical role in avoiding TetV-mediated efflux, as lead eAmSPC 2593 displays a mere fourfold susceptibility improvement against Mab ΔtetV, in contrast to the 64-fold increase for SPC. Even a minor shortening of the linkage by a single carbon, akin to 1st generation AmSPC 1950, results in a substantial increase in MICs and a 16-fold rise in susceptibility against Mab ΔtetV. These shifts suggest that longer linkages might modify the kinetics of drug expulsion by TetV, ultimately shifting the equilibrium towards heightened intracellular concentrations and enhanced antimicrobial efficacy. Furthermore, lead eAmSPCs were also shown to synergize with various classes of anti-Mab antibiotics and retain activity against clinical isolates and other mycobacterial strains. Encouraging pharmacokinetic profiles coupled with robust efficacy in Mab murine infection models suggest that eAmSPCs hold the potential to be developed into treatments for Mab and other NTM infections.
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Affiliation(s)
- Gregory A. Phelps
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
- Graduate School of Biomedical Sciences, St. Jude Children’s Research Hospital, Memphis, TN38103
| | - Martin N. Cheramie
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Dinesh M. Fernando
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Petra Selchow
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
| | - Christopher J. Meyer
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Samanthi L. Waidyarachchi
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Suresh Dharuman
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Jiuyu Liu
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Michael Meuli
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
- National Reference Center for Mycobacteria, ZurichCH-8006, Switzerland
| | - Michael Dal Molin
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
| | - Benjamin Y. Killam
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL60607
| | - Patricia A. Murphy
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Stephanie M. Reeve
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Laura A. Wilt
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Shelby M. Anderson
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Lei Yang
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Robin B. Lee
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Zaid H. Temrikar
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN38163
| | - Pradeep B. Lukka
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN38163
| | - Bernd Meibohm
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN38163
| | - Yury S. Polikanov
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL60607
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL60607
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL60607
| | - Sven N. Hobbie
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
| | - Erik C. Böttger
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
- National Reference Center for Mycobacteria, ZurichCH-8006, Switzerland
| | - Peter Sander
- Institute of Medical Microbiology, University of Zurich, ZurichCH-8006, Switzerland
- National Reference Center for Mycobacteria, ZurichCH-8006, Switzerland
| | - Richard E. Lee
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN38105
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20
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Lin H, Song L, Zhou S, Fan C, Zhang M, Huang R, Zhou R, Qiu J, Ma S, He J. A Hybrid Antimicrobial Peptide Targeting Staphylococcus aureus with a Dual Function of Inhibiting Quorum Sensing Signaling and an Antibacterial Effect. J Med Chem 2023; 66:17105-17117. [PMID: 38099725 DOI: 10.1021/acs.jmedchem.3c02027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Community-associated methicillin-resistant Staphylococcus aureus (MRSA) is now a major cause of bacterial infection. Antivirulence therapy does not stimulate evolution of a pathogen toward a resistant phenotype, providing a novel method to treat infectious diseases. Here, we used a cyclic peptide of CP7, an AIP-III variant that specifically inhibited the virulence and biofilm formation of Staphylococcus aureus (S. aureus) in a nonbiocidal manner, to conjugate with a broad-spectrum antimicrobial peptide (AMP) via two N-termini to obtain a hybrid AMP called CP7-FP13-2. This peptide not only specifically inhibited the production of virulence of S. aureus at low micromolar concentrations but also killed S. aureus, including MRSA, by disrupting the integrity of the bacterial cell membrane. In addition, CP7-FP13-2 inhibited the formation of the S. aureus biofilm and showed good antimicrobial efficacy against the S. aureus-infected Kunming mice model. Therefore, this study provides a promising strategy against the resistance and virulence of S. aureus.
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Affiliation(s)
- Haixing Lin
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
- Department of Urology, Tongren Municipal People's Hospital, 120 Taoyuan Avenue, Tongren, Guizhou 554300, P. R. China
| | - Li Song
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Shaofen Zhou
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Cuiqiong Fan
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Minna Zhang
- Department of Nephrology, Tongren Municipal People's Hospital, 120 Taoyuan Avenue, Tongren, Guizhou 554300, P. R. China
| | - Ruifeng Huang
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Runhong Zhou
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Jingnan Qiu
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Shuaiqi Ma
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
| | - Jian He
- Group of peptides and natural products Research, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P. R. China
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21
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Liu Q, Zhang H, Yi Y, Wang P, Pu W, Wang S, Shang R. Synthesis and evaluation of novel pleuromutilin derivatives targeting the 50S ribosomal subunit for antibacterial ability. Eur J Med Chem 2023; 262:115882. [PMID: 37879170 DOI: 10.1016/j.ejmech.2023.115882] [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: 08/30/2023] [Revised: 09/23/2023] [Accepted: 10/13/2023] [Indexed: 10/27/2023]
Abstract
Multidrug-resistant bacteria, particularly methicillin-resistant Staphylococcus aureus, have become a major global public health concern. Therefore, developing new antibiotics that do not possess cross-resistance for the currently available antibiotics is critical. Herein, we synthesized a novel class of pleuromutilin derivatives containing substituted triazine with improved antibacterial activity. Among these derivatives, 6d, which contains 4-dimethylamino-1,3,5-triazine in the side chain of pleuromutilin, exhibited highly promising antimicrobial activity and mitigated antibiotic resistance. The high antibacterial potency of 6d was further supported by docking model analysis and green fluorescent protein inhibition assay. Additionally, cytotoxicity and acute oral toxicity evaluation and in vivo mouse systemic infection experiments revealed that 6d possessed tolerable toxicity and promising therapeutic efficacy.
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Affiliation(s)
- Qinqin Liu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Hongjuan Zhang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China
| | - YunPeng Yi
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, 202 Gongyebeilu, Jinan, 250023, Shandong, China
| | - Panpan Wang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China
| | - Wanxia Pu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China
| | - Shengyi Wang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China
| | - Ruofeng Shang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
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22
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Bugnon Q, Melendez C, Desiatkina O, Fayolles de Chaptes L, Holzer I, Păunescu E, Hilty M, Furrer J. In vitro antibacterial activity of dinuclear thiolato-bridged ruthenium(II)-arene compounds. Microbiol Spectr 2023; 11:e0095423. [PMID: 37815336 PMCID: PMC10714934 DOI: 10.1128/spectrum.00954-23] [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: 05/19/2023] [Accepted: 08/28/2023] [Indexed: 10/11/2023] Open
Abstract
IMPORTANCE The in vitro assessment of diruthenium(II)-arene compounds against Escherichia coli, Streptococcus pneumoniae, and Staphylococcus aureus showed a significant antibacterial activity of some compounds against S. pneumoniae, with minimum inhibitory concentration (MIC) values ranging from 1.3 to 2.6 µM, and a medium activity against E. coli, with MIC of 25 µM. The nature of the substituents anchored on the bridging thiols and the compounds molecular weight appear to significantly influence the antibacterial activity. Fluorescence microscopy showed that these ruthenium compounds enter the bacteria and do not accumulate in the cell wall of gram-positive bacteria. These diruthenium(II)-arene compounds exhibit promising activity against S. aureus and S. pneumoniae and deserve to be considered for further studies, especially the compounds bearing larger benzo-fused lactam substituents.
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Affiliation(s)
- Quentin Bugnon
- Department of Medicine, Institute for Infectious Diseases, University of Bern, Bern, Switzerland
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Camilo Melendez
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Oksana Desiatkina
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Louis Fayolles de Chaptes
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Isabelle Holzer
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Emilia Păunescu
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
| | - Markus Hilty
- Department of Medicine, Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Julien Furrer
- Department of Chemistry, Biochemistry and Pharmaceuticals Sciences, University of Bern, Bern, Switzerland
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23
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Schaenzer AJ, Rodriguez Hernandez A, Tsai K, Hobson C, Fujimori DG, Wright GD. Angucyclinones rescue PhLOPS A antibiotic activity by inhibiting Cfr-dependent antibiotic resistance. mBio 2023; 14:e0179123. [PMID: 38014974 PMCID: PMC10746278 DOI: 10.1128/mbio.01791-23] [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: 07/10/2023] [Accepted: 10/16/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE Cfr is an antibiotic resistance enzyme that inhibits five clinically important antibiotic classes, is genetically mobile, and has a minimal fitness cost, making Cfr a serious threat to antibiotic efficacy. The significance of our work is in discovering molecules that inhibit Cfr-dependent methylation of the ribosome, thus protecting the efficacy of the PhLOPSA antibiotics. These molecules are the first reported inhibitors of Cfr-mediated ribosome methylation and, as such, will guide the further discovery of chemical scaffolds against Cfr-mediated antibiotic resistance. Our work acts as a foundation for further development of molecules that safeguard the PhLOPSA antibiotics from Cfr.
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Affiliation(s)
- Adam J. Schaenzer
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Annia Rodriguez Hernandez
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, USA
| | - Kaitlyn Tsai
- Chemistry and Chemical Biology Graduate Program, University of California San Francisco, San Francisco, California, USA
| | - Christian Hobson
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Danica Galonić Fujimori
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, California, USA
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, California, USA
| | - Gerard D. Wright
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
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24
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Wang Q, Li S, Chen J, Yang L, Qiu Y, Du Q, Wang C, Teng M, Wang T, Dong Y. A novel strategy for therapeutic drug monitoring: application of biosensors to quantify antimicrobials in biological matrices. J Antimicrob Chemother 2023; 78:2612-2629. [PMID: 37791382 DOI: 10.1093/jac/dkad289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Over the past few years, therapeutic drug monitoring (TDM) has gained practical significance in antimicrobial precision therapy. Yet two categories of mainstream TDM techniques (chromatographic analysis and immunoassays) that are widely adopted nowadays retain certain inherent limitations. The use of biosensors, an innovative strategy for rapid evaluation of antimicrobial concentrations in biological samples, enables the implementation of point-of-care testing (POCT) and continuous monitoring, which may circumvent the constraints of conventional TDM and provide strong technological support for individualized antimicrobial treatment. This comprehensive review summarizes the investigations that have harnessed biosensors to detect antimicrobial drugs in biological matrices, provides insights into the performance and characteristics of each sensing form, and explores the feasibility of translating them into clinical practice. Furthermore, the future trends and obstacles to achieving POCT and continuous monitoring are discussed. More efforts are necessary to address the four key 'appropriateness' challenges to deploy biosensors in clinical practice, paving the way for personalized antimicrobial stewardship.
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Affiliation(s)
- Quanfang Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Sihan Li
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jiaojiao Chen
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Luting Yang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Yulan Qiu
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Qian Du
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Chuhui Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Mengmeng Teng
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Taotao Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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25
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Qin C, Yang Y, Wu X, Chen L, Liu Z, Tang L, Lyu L, Huang D, Wang D, Zhang C, Yuan X, Liu W, Wang H. Twistedly hydrophobic basis with suitable aromatic metrics in covalent organic networks govern micropollutant decontamination. Nat Commun 2023; 14:6740. [PMID: 37875482 PMCID: PMC10597987 DOI: 10.1038/s41467-023-42513-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 10/12/2023] [Indexed: 10/26/2023] Open
Abstract
The pre-designable structure and unique architectures of covalent organic frameworks (COFs) render them attractive as active and porous medium for water crisis. However, the effect of functional basis with different metrics on the regulation of interfacial behavior in advanced oxidation decontamination remains a significant challenge. In this study, we pre-design and fabricate different molecular interfaces by creating ordered π skeletons, incorporating different pore sizes, and engineering hydrophilic or hydrophobic channels. These synergically break through the adsorption energy barrier and promote inner-surface renewal, achieving a high removal rate for typical antibiotic contaminants (like levofloxacin) by BTT-DATP-COF, compared with BTT-DADP-COF and BTT-DAB-COF. The experimental and theoretical calculations reveal that such functional basis engineering enable the hole-driven levofloxacin oxidation at the interface of BTT fragments to occur, accompanying with electron-mediated oxygen reduction on terphenyl motif to active radicals, endowing it facilitate the balanced extraction of holes and electrons.
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Affiliation(s)
- Chencheng Qin
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Yi Yang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Xiaodong Wu
- College of Materials Science and Engineering, Nanjing Tech University, 210009, Nanjing, China
| | - Long Chen
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, 100871, Beijing, China
| | - Zhaoli Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, 100871, Beijing, China
| | - Lin Tang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Lai Lyu
- Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, 510006, Guangzhou, China
| | - Danlian Huang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Dongbo Wang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Chang Zhang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China
| | - Wen Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, 100871, Beijing, China.
| | - Hou Wang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, 410082, Changsha, China.
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26
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Bader CD, Nichols AL, Yang D, Shen B. Interplay of emerging and established technologies drives innovation in natural product antibiotic discovery. Curr Opin Microbiol 2023; 75:102359. [PMID: 37517368 DOI: 10.1016/j.mib.2023.102359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/04/2023] [Accepted: 06/21/2023] [Indexed: 08/01/2023]
Abstract
A continued rise of antibiotic resistance and shortages of effective antibiotics necessitate the discovery and development of new antibiotics with novel modes of action (MoAs) against resistant pathogens. While natural products remain the best resource for antibiotic discovery, their exploration faces many challenges, including (i) unknown MoAs, (ii) high rediscovery rates, (iii) tedious isolation and structure elucidation, and (iv) insufficient production for further development. We have identified recent innovations in screening methods, microbiology, bioinformatics, and metabolomics technologies, as well as natural product-inspired synthesis and synthetic biology, that have contributed to new natural product antibiotics in the past two years. We highlight their interplay as the key element for successful applications, driving future opportunities to increase the pool of natural product-based antibacterial antibiotics.
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Affiliation(s)
- Chantal D Bader
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States
| | - Angela L Nichols
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States; Skaggs Graduate School of Chemical and Biological Sciences, Scripps Research, Jupiter, Florida 33458, United States
| | - Dong Yang
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States; Natural Products Discovery Center, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States
| | - Ben Shen
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States; Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States; Natural Products Discovery Center, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, Florida 33458, United States; Skaggs Graduate School of Chemical and Biological Sciences, Scripps Research, Jupiter, Florida 33458, United States.
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27
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Aleksandrova EV, Wu KJY, Tresco BIC, Syroegin EA, Killeavy EE, Balasanyants SM, Svetlov MS, Gregory ST, Atkinson GC, Myers AG, Polikanov YS. Structural basis of Cfr-mediated antimicrobial resistance and mechanisms for its evasion. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.27.559749. [PMID: 37808676 PMCID: PMC10557674 DOI: 10.1101/2023.09.27.559749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
The ribosome is an essential drug target as many classes of clinically important antibiotics bind and inhibit its functional centers. The catalytic peptidyl transferase center (PTC) is targeted by the broadest array of inhibitors belonging to several chemical classes. One of the most abundant and clinically prevalent mechanisms of resistance to PTC-acting drugs is C8-methylation of the universally conserved adenine residue 2503 (A2503) of the 23S rRNA by the methyltransferase Cfr. Despite its clinical significance, a sufficient understanding of the molecular mechanisms underlying Cfr-mediated resistance is currently lacking. In this work, we developed a method to express a functionally-active Cfr-methyltransferase in the thermophilic bacterium Thermus thermophilus and report a set of high-resolution structures of the Cfr-modified 70S ribosome containing aminoacyl- and peptidyl-tRNAs. Our structures reveal that an allosteric rearrangement of nucleotide A2062 upon Cfr-methylation of A2503 is likely responsible for the inability of some PTC inhibitors to bind to the ribosome, providing additional insights into the Cfr resistance mechanism. Lastly, by determining the structures of the Cfr-methylated ribosome in complex with the antibiotics iboxamycin and tylosin, we provide the structural bases behind two distinct mechanisms of evading Cfr-mediated resistance.
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Affiliation(s)
- Elena V. Aleksandrova
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Kelvin J. Y. Wu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Ben I. C. Tresco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Egor A. Syroegin
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Erin E. Killeavy
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
| | - Samson M. Balasanyants
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Maxim S. Svetlov
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Steven T. Gregory
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA
| | - Gemma C. Atkinson
- Department of Experimental Medicine, University of Lund, Lund, Sweden
- Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
| | - Andrew G. Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Yury S. Polikanov
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
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28
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Sood A, Kesavan V. Synthesis and antibacterial activity of 2-benzylidene-3-oxobutanamide derivatives against resistant pathogens. RSC Med Chem 2023; 14:1817-1826. [PMID: 37731706 PMCID: PMC10507797 DOI: 10.1039/d3md00051f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/21/2023] [Indexed: 09/22/2023] Open
Abstract
Antibiotic resistance evolves naturally through random mutation. Resistance to antimicrobials is an urgent public health crisis that requires coordinated global action. The ESKAPE bacteria (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are primarily responsible for the rise in resistant pathogens. There is an immediate requirement to identify a novel molecular scaffold with potent anti-microbial properties. We developed an efficient one-step synthesis of 2-benzylidene-3-oxobutanamide and its derivatives, which allowed the introduction of an α,β-unsaturated ketone moiety in the quest to identify a new molecular scaffold. Seven compounds exhibited very good antibacterial activity in vitro against WHO priority drug-resistant bacteria such as methicillin resistant Staphyloccus aureus (MRSA) and Acinetobacter baumannii-Multi drug resistant (MDR-AB). In cultured human embryonic kidney cells and hemolysis assays, the potent compounds displayed minimal toxicity. These findings suggest that these small molecules with excellent diversity have the potential to combat antibacterial resistance.
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Affiliation(s)
- Ankur Sood
- Department of Biotechnology, Bhupat & Jyothi Mehta School of Biosciences Building, Indian Institute of Technology Madras Chennai-60036 India
| | - Venkitasamy Kesavan
- Department of Biotechnology, Bhupat & Jyothi Mehta School of Biosciences Building, Indian Institute of Technology Madras Chennai-60036 India
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29
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Du J, Cong Y, Wang X, Kang Y, Zhang P, Li L. Green Synthesis of Antimicrobial Peptide-Protected Silver Nanoclusters with Regulated Antibacterial Behavior. ACS APPLIED BIO MATERIALS 2023; 6:3919-3926. [PMID: 37678239 DOI: 10.1021/acsabm.3c00646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
The antibacterial system based on the silver element has been a very promising antibacterial material. However, the antibacterial activity of silver nanomaterials largely depends on their chemical composition and physical properties. Herein, we prepared ultrasmall silver nanoclusters by directly reducing silver ions with antimicrobial peptide in a green way. The positively charged peptide ligands drove the silver nanoclusters binding to bacteria by electrostatic attraction. Contrary to the large-sized silver nanomaterials, the ultrasmall silver nanoclusters were able to rapidly penetrate bacteria membranes via strong hydrophobic association, significantly promoting the generation of reactive oxygen species, and the subsequent high oxidative stress led to bacterial death. Moreover, the silver nanoclusters with antibacterial peptide ligand exhibited good stability, low cytotoxicity, and long-term antibacterial activity. Besides, synergistic enhancement of silver nanoclusters on antibacterial activity was observed. Therefore, the silver nanoclusters conjugated with the antimicrobial peptide can act as a synergistic antibacterial agent, in which their bio-interactions with bacteria have been regulated to achieve a rapid, long-lasting, and broad-spectrum antibacterial effect.
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Affiliation(s)
- Jingrui Du
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Yuetong Kang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Pengbo Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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30
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Paternoga H, Crowe-McAuliffe C, Bock LV, Koller TO, Morici M, Beckert B, Myasnikov AG, Grubmüller H, Nováček J, Wilson DN. Structural conservation of antibiotic interaction with ribosomes. Nat Struct Mol Biol 2023; 30:1380-1392. [PMID: 37550453 PMCID: PMC10497419 DOI: 10.1038/s41594-023-01047-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/26/2023] [Indexed: 08/09/2023]
Abstract
The ribosome is a major target for clinically used antibiotics, but multidrug resistant pathogenic bacteria are making our current arsenal of antimicrobials obsolete. Here we present cryo-electron-microscopy structures of 17 distinct compounds from six different antibiotic classes bound to the bacterial ribosome at resolutions ranging from 1.6 to 2.2 Å. The improved resolution enables a precise description of antibiotic-ribosome interactions, encompassing solvent networks that mediate multiple additional interactions between the drugs and their target. Our results reveal a high structural conservation in the binding mode between antibiotics with the same scaffold, including ordered water molecules. Water molecules are visualized within the antibiotic binding sites that are preordered, become ordered in the presence of the drug and that are physically displaced on drug binding. Insight into RNA-ligand interactions will facilitate development of new antimicrobial agents, as well as other RNA-targeting therapies.
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Affiliation(s)
- Helge Paternoga
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Hamburg, Germany
| | | | - Lars V Bock
- Theoretical and Computational Biophysics Department, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Timm O Koller
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Hamburg, Germany
| | - Martino Morici
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Hamburg, Germany
| | - Bertrand Beckert
- Dubochet Center for Imaging at EPFL-UNIL, Batiment Cubotron, Lausanne, Switzerland
| | | | - Helmut Grubmüller
- Theoretical and Computational Biophysics Department, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Jiří Nováček
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - Daniel N Wilson
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Hamburg, Germany.
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31
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Pu L, Wang J, Hu Z, Zhang Y. Universal Water Disinfection by the Introduction of Fe-N 3 Traps between g-C 3N 4 Layers under Visible Light. ACS OMEGA 2023; 8:27276-27283. [PMID: 37546626 PMCID: PMC10399186 DOI: 10.1021/acsomega.3c02654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023]
Abstract
Efficient inactivation of bacteria in the sewage via a photocatalytic process represents a promising strategy for the efficient chemical utilization of solar energy. Herein, uniformly dispersed Fe atoms were embedded between layers of g-C3N4 photocatalysts (CNFx), which were facilely prepared by thermal treatment. The optimized photocatalyst (CNF100) first showed excellent photoactivity for killing a variety of bacteria (93.0% for E. coli, 93.9% for Salmonella, and 96.2% for S. aureus) under visible light irradiation. The superior activity can be attributed to the formation of shallow electron traps (Fe-N3) that can capture excitons of excited states, which promote the charge transfer and energy transfer process of activated adsorbed molecular oxygen, respectively, forming reactive oxygen species, improving separation efficiency of photoexcited electrons and holes, and the Fe-N3 traps can also be used as photosensitive sites to broaden the absorption range of visible light. This strategy of constructing shallow electronic traps lays a theoretical foundation for the design of new environmentally friendly and efficient water disinfectants.
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Affiliation(s)
- Ling Pu
- Institute
of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural
Sciences, Guiyang 550005, China
| | - Jiying Wang
- College
of Animal Science and Technology, Huaihua
Polytechnic College, Huaihua 418000, China
- College
of Veterinary Medicine, Hunan Agricultural
University, Changsha 410000, China
| | - Zhao Hu
- National
Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide
& Agricultural Bioengineering, Ministry of Education, State-Local
Joint Laboratory for Comprehensive Utilization of Biomass, Center
for R&D of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, China
| | - Yujiao Zhang
- Institute
of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural
Sciences, Guiyang 550005, China
- National
Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide
& Agricultural Bioengineering, Ministry of Education, State-Local
Joint Laboratory for Comprehensive Utilization of Biomass, Center
for R&D of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, China
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32
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Wu KJY, Klepacki D, Mankin AS, Myers AG. A method for tritiation of iboxamycin permits measurement of its ribosomal binding. Bioorg Med Chem Lett 2023; 91:129364. [PMID: 37295615 PMCID: PMC10408240 DOI: 10.1016/j.bmcl.2023.129364] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/25/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Hydrogen-tritium exchange is widely employed for radioisotopic labeling of molecules of biological interest but typically involves the metal-promoted exchange of sp2-hybridized carbon-hydrogen bonds, a strategy that is not directly applicable to the antibiotic iboxamycin, which possesses no such bonds. We show that ruthenium-induced 2'-epimerization of 2'-epi-iboxamycin in HTO (200 mCi) of low specific activity (10 Ci/g, 180 mCi/mmol) at 80 °C for 18 h affords after purification tritium-labeled iboxamycin (3.55 µCi) with a specific activity of 53 mCi/mmol. Iboxamycin displayed an apparent inhibition constant (Ki, app) of 41 ± 30 nM towards Escherichia coli ribosomes, binding approximately 70-fold more tightly than the antibiotic clindamycin (Ki, app = 2.7 ± 1.1 µM).
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Affiliation(s)
- Kelvin J Y Wu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Dorota Klepacki
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA; Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alexander S Mankin
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA; Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Andrew G Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
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33
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Chen CW, Leimer N, Syroegin EA, Dunand C, Bulman ZP, Lewis K, Polikanov YS, Svetlov MS. Structural insights into the mechanism of overcoming Erm-mediated resistance by macrolides acting together with hygromycin-A. Nat Commun 2023; 14:4196. [PMID: 37452045 PMCID: PMC10349075 DOI: 10.1038/s41467-023-39653-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/22/2023] [Indexed: 07/18/2023] Open
Abstract
The ever-growing rise of antibiotic resistance among bacterial pathogens is one of the top healthcare threats today. Although combination antibiotic therapies represent a potential approach to more efficiently combat infections caused by susceptible and drug-resistant bacteria, only a few known drug pairs exhibit synergy/cooperativity in killing bacteria. Here, we discover that well-known ribosomal antibiotics, hygromycin A (HygA) and macrolides, which target peptidyl transferase center and peptide exit tunnel, respectively, can act cooperatively against susceptible and drug-resistant bacteria. Remarkably, HygA slows down macrolide dissociation from the ribosome by 60-fold and enhances the otherwise weak antimicrobial activity of the newest-generation macrolide drugs known as ketolides against macrolide-resistant bacteria. By determining a set of high-resolution X-ray crystal structures of drug-sensitive wild-type and macrolide-resistant Erm-methylated 70S ribosomes in complex with three HygA-macrolide pairs, we provide a structural rationale for the binding cooperativity of these drugs and also uncover the molecular mechanism of overcoming Erm-type resistance by macrolides acting together with hygromycin A. Altogether our structural, biochemical, and microbiological findings lay the foundation for the subsequent development of synergistic antibiotic tandems with improved bactericidal properties against drug-resistant pathogens, including those expressing erm genes.
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Affiliation(s)
- Chih-Wei Chen
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Nadja Leimer
- Department of Biology, Northeastern University, Boston, MA, 02115, USA
| | - Egor A Syroegin
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Clémence Dunand
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Zackery P Bulman
- Department of Pharmacy Practice, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Kim Lewis
- Department of Biology, Northeastern University, Boston, MA, 02115, USA
| | - Yury S Polikanov
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
| | - Maxim S Svetlov
- Center for Biomolecular Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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34
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Obana N, Takada H, Crowe-McAuliffe C, Iwamoto M, Egorov AA, Wu KJY, Chiba S, Murina V, Paternoga H, Tresco BIC, Nomura N, Myers AG, Atkinson G, Wilson DN, Hauryliuk V. Genome-encoded ABCF factors implicated in intrinsic antibiotic resistance in Gram-positive bacteria: VmlR2, Ard1 and CplR. Nucleic Acids Res 2023; 51:4536-4554. [PMID: 36951104 PMCID: PMC10201436 DOI: 10.1093/nar/gkad193] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/17/2023] [Accepted: 03/06/2023] [Indexed: 03/24/2023] Open
Abstract
Genome-encoded antibiotic resistance (ARE) ATP-binding cassette (ABC) proteins of the F subfamily (ARE-ABCFs) mediate intrinsic resistance in diverse Gram-positive bacteria. The diversity of chromosomally-encoded ARE-ABCFs is far from being fully experimentally explored. Here we characterise phylogenetically diverse genome-encoded ABCFs from Actinomycetia (Ard1 from Streptomyces capreolus, producer of the nucleoside antibiotic A201A), Bacilli (VmlR2 from soil bacterium Neobacillus vireti) and Clostridia (CplR from Clostridium perfringens, Clostridium sporogenes and Clostridioides difficile). We demonstrate that Ard1 is a narrow spectrum ARE-ABCF that specifically mediates self-resistance against nucleoside antibiotics. The single-particle cryo-EM structure of a VmlR2-ribosome complex allows us to rationalise the resistance spectrum of this ARE-ABCF that is equipped with an unusually long antibiotic resistance determinant (ARD) subdomain. We show that CplR contributes to intrinsic pleuromutilin, lincosamide and streptogramin A resistance in Clostridioides, and demonstrate that C. difficile CplR (CDIF630_02847) synergises with the transposon-encoded 23S ribosomal RNA methyltransferase Erm to grant high levels of antibiotic resistance to the C. difficile 630 clinical isolate. Finally, assisted by uORF4u, our novel tool for detection of upstream open reading frames, we dissect the translational attenuation mechanism that controls the induction of cplR expression upon an antibiotic challenge.
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Affiliation(s)
- Nozomu Obana
- Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Microbiology Research Center for Sustainability (MiCS), University of Tsukuba, Tsukuba, Japan
| | - Hiraku Takada
- Faculty of Life Sciences, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-Ku, Kyoto 603-8555, Japan
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Caillan Crowe-McAuliffe
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Mizuki Iwamoto
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Artyom A Egorov
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Kelvin J Y Wu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Shinobu Chiba
- Faculty of Life Sciences, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-Ku, Kyoto 603-8555, Japan
- Institute for Protein Dynamics, Kyoto Sangyo University, Japan
| | | | - Helge Paternoga
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Ben I C Tresco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Nobuhiko Nomura
- Microbiology Research Center for Sustainability (MiCS), University of Tsukuba, Tsukuba, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Andrew G Myers
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Gemma C Atkinson
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Daniel N Wilson
- Institute for Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Vasili Hauryliuk
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- University of Tartu, Institute of Technology, Tartu, Estonia
- Science for Life Laboratory, Lund, Sweden
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35
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Wan Y, Zhou M, Wang L, Hu K, Liu D, Liu H, Sun JS, Codée JDC, Zhang Q. Regio- and Stereoselective Organocatalyzed Relay Glycosylations To Synthesize 2-Amino-2-deoxy-1,3-dithioglycosides. Org Lett 2023; 25:3611-3617. [PMID: 37191370 DOI: 10.1021/acs.orglett.3c00859] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Herein, we describe a novel methodology for the regio- and stereoselective convergent synthesis of 2-amino-2-deoxy-dithioglycosides via one-pot relay glycosylation of 3-O-acetyl-2-nitroglucal donors. This unique organo-catalysis relay glycosylation features excellent site- and stereoselectivity, good to excellent yields, mild reaction conditions, and broad substrate scope. 2-Amino-2-deoxy-glucosides/mannosides bearing 1,3-dithio-linkages were efficiently obtained from 3-O-acetyl-2-nitroglucal donors in both stepwise and one-pot glycosylation protocols. The dithiolated O-antigen of E. coli serogroup 64 was successfully synthesized using this newly developed method.
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Affiliation(s)
- Yongyong Wan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Meimei Zhou
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Liming Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Kexin Hu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Deyong Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Hui Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Jian-Song Sun
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Jeroen D C Codée
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, Netherlands
| | - Qingju Zhang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
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36
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Devi V, Harjai K, Chhibber S. Repurposing prokaryotic clustered regularly interspaced short palindromic repeats-Cas adaptive immune system to combat antimicrobial resistance. Future Microbiol 2023; 18:443-459. [PMID: 37317864 DOI: 10.2217/fmb-2022-0222] [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: 09/22/2022] [Accepted: 05/05/2023] [Indexed: 06/16/2023] Open
Abstract
Despite achieving unparalleled progress in the field of science and technology, the global health community is still threatened by the looming pressure of infectious diseases. One of the greatest challenges is the rise in infections by antibiotic-resistant microorganisms. The misuse of antibiotics has led to the present circumstances, and there is seemingly no solution. There is imminent pressure to develop new antibacterial therapies to curb the rise and spread of multidrug resistance. Clustered regularly interspaced short palindromic repeats (CRISPR)-Cas, having immense potential as a gene-editing tool, has gained considerable attention as an alternative antibacterial therapy. Strategies, aiming to either eliminate pathogenic strains or to restore sensitivity to antibiotics, are the main focus of research. This review deals with the development of CRISPR-Cas antimicrobials and their delivery challenges.
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Affiliation(s)
- Veena Devi
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Kusum Harjai
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Sanjay Chhibber
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
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37
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Tsirogianni A, Kournoutou GG, Mpogiatzoglou M, Dinos G, Athanassopoulos CM. Chloramphenicol Derivatization in Its Primary Hydroxyl Group with Basic Amino Acids Leads to New Pharmacophores with High Antimicrobial Activity. Antibiotics (Basel) 2023; 12:antibiotics12050832. [PMID: 37237735 DOI: 10.3390/antibiotics12050832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/05/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
In a previous study published by our group, successful modification of the antibiotic chloramphenicol (CHL) was reported, which was achieved by replacing the dichloroacetyl tail with alpha and beta amino acids, resulting in promising new antibacterial pharmacophores. In this study, CHL was further modified by linking the basic amino acids lysine, ornithine, and histidine to the primary hydroxyl group of CHL via triazole, carbamate, or amide bonding. Our results showed that while linking the basic amino acids retained antibacterial activity, it was somewhat reduced compared to CHL. However, in vitro testing demonstrated that all derivatives were comparable in activity to CHL and competed for the same ribosomal binding site with radioactive chloramphenicol. The amino acid-CHL tethering modes were evaluated either with carbamate (7, 8) derivatives, which exhibited higher activity, or with amide- (4-6) or triazole-bridged compounds (1-3), which were equally potent. Our findings suggest that these new pharmacophores have potential as antimicrobial agents, though further optimization is needed.
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Affiliation(s)
- Artemis Tsirogianni
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Patras, GR-26504 Patras, Greece
| | - Georgia G Kournoutou
- Department of Biochemistry, School of Medicine, University of Patras, GR-26504 Patras, Greece
| | - Maria Mpogiatzoglou
- Department of Biochemistry, School of Medicine, University of Patras, GR-26504 Patras, Greece
| | - George Dinos
- Department of Biochemistry, School of Medicine, University of Patras, GR-26504 Patras, Greece
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38
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Jeremia L, Deprez BE, Dey D, Conn GL, Wuest WM. Ribosome-targeting antibiotics and resistance via ribosomal RNA methylation. RSC Med Chem 2023; 14:624-643. [PMID: 37122541 PMCID: PMC10131624 DOI: 10.1039/d2md00459c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/17/2023] [Indexed: 03/05/2023] Open
Abstract
The rise of multidrug-resistant bacterial infections is a cause of global concern. There is an urgent need to both revitalize antibacterial agents that are ineffective due to resistance while concurrently developing new antibiotics with novel targets and mechanisms of action. Pathogen associated resistance-conferring ribosomal RNA (rRNA) methyltransferases are a growing threat that, as a group, collectively render a total of seven clinically-relevant ribosome-targeting antibiotic classes ineffective. Increasing frequency of identification and their growing prevalence relative to other resistance mechanisms suggests that these resistance determinants are rapidly spreading among human pathogens and could contribute significantly to the increased likelihood of a post-antibiotic era. Herein, with a view toward stimulating future studies to counter the effects of these rRNA methyltransferases, we summarize their prevalence, the fitness cost(s) to bacteria of their acquisition and expression, and current efforts toward targeting clinically relevant enzymes of this class.
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Affiliation(s)
- Learnmore Jeremia
- Department of Chemistry, Emory University 1515 Dickey Dr. Atlanta GA 30322 USA
| | - Benjamin E Deprez
- Department of Chemistry, Emory University 1515 Dickey Dr. Atlanta GA 30322 USA
| | - Debayan Dey
- Department of Biochemistry, Emory University School of Medicine 1510 Clifton Rd. Atlanta GA 30322 USA
| | - Graeme L Conn
- Department of Biochemistry, Emory University School of Medicine 1510 Clifton Rd. Atlanta GA 30322 USA
- Emory Antibiotic Resistance Center, Emory University School of Medicine 1510 Clifton Rd. Atlanta GA 30322 USA
| | - William M Wuest
- Department of Chemistry, Emory University 1515 Dickey Dr. Atlanta GA 30322 USA
- Emory Antibiotic Resistance Center, Emory University School of Medicine 1510 Clifton Rd. Atlanta GA 30322 USA
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39
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Shu X, Shi Y, Huang Y, Yu D, Sun B. Transcription tuned by S-nitrosylation underlies a mechanism for Staphylococcus aureus to circumvent vancomycin killing. Nat Commun 2023; 14:2318. [PMID: 37085493 PMCID: PMC10120478 DOI: 10.1038/s41467-023-37949-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 04/06/2023] [Indexed: 04/23/2023] Open
Abstract
Treatment of Staphylococcus aureus infections is a constant challenge due to emerging resistance to vancomycin, a last-resort drug. S-nitrosylation, the covalent attachment of a nitric oxide (NO) group to a cysteine thiol, mediates redox-based signaling for eukaryotic cellular functions. However, its role in bacteria is largely unknown. Here, proteomic analysis revealed that S-nitrosylation is a prominent growth feature of vancomycin-intermediate S. aureus. Deletion of NO synthase (NOS) or removal of S-nitrosylation from the redox-sensitive regulator MgrA or WalR resulted in thinner cell walls and increased vancomycin susceptibility, which was due to attenuated promoter binding and released repression of genes involved in cell wall metabolism. These genes failed to respond to H2O2-induced oxidation, suggesting distinct transcriptional responses to alternative modifications of the cysteine residue. Furthermore, treatment with a NOS inhibitor significantly decreased vancomycin resistance in S. aureus. This study reveals that transcriptional regulation via S-nitrosylation underlies a mechanism for NO-mediated bacterial antibiotic resistance.
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Affiliation(s)
- Xueqin Shu
- Department of Oncology, The First Affiliated Hospital, University of Science and Technology of China, Hefei, China
- Department of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Yingying Shi
- Department of Oncology, The First Affiliated Hospital, University of Science and Technology of China, Hefei, China
- Department of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Yi Huang
- Department of Oncology, The First Affiliated Hospital, University of Science and Technology of China, Hefei, China
- Department of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Dan Yu
- Laboratory of Dermatology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Center for Children's Health, Beijing, China.
| | - Baolin Sun
- Department of Oncology, The First Affiliated Hospital, University of Science and Technology of China, Hefei, China.
- Department of Life Science and Medicine, University of Science and Technology of China, Hefei, China.
- CAS Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China.
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, China.
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40
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Li R, Yan J, Feng B, Sun M, Ding C, Shen H, Zhu J, Yu S. Ultrasensitive Detection of Multidrug-Resistant Bacteria Based on Boric Acid-Functionalized Fluorescent MOF@COF. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18663-18671. [PMID: 37036801 DOI: 10.1021/acsami.3c00632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The widespread use of antibiotics has made multidrug-resistant bacteria (MDRB) one of the greatest threats toward global health. Current conventional microbial detection methods are usually time-consuming, labor-intensive, expensive, and unable to detect low concentrations of bacteria, which cause great difficulties in clinical diagnosis and treatment. Herein, we constructed a versatile biosensing platform on the basis of boric acid-functionalized porous framework composites (MOF@COF-BA), which were able to realize highly efficient and sensitive label-free MDRB detection via fluorescence. In this design, MDRB were captured using aptamer-coated nanoparticles and the fluorescent probe MOF@COF-BA was tightly anchored onto the surface of MDRB due to interactions between boric acid groups and glycolipids on bacteria cells. Benefitting from the remarkable fluorescence performance of MOF@COF-BA, rapid and specific detection of MDRB, such as methicillin-resistant Staphylococcus aureus (MRSA) and Acinetobacter baumannii (AB), was realized with a detection range of 20-108 CFU/mL (for both) and limits of detection of 7 CFU/mL (MRSA) and 5 CFU/mL (AB). The feasibility of using the developed platform to selectively detect MRSA and AB from complex urine, human serum, and cerebrospinal fluid samples was also demonstrated. This work provides a promising strategy for accurate MDRB diagnosis, avoiding serious infection using rational antibiotic therapy.
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Affiliation(s)
- Ruiwen Li
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jintao Yan
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Bin Feng
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Min Sun
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chuanfan Ding
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Hao Shen
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jianhua Zhu
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315211, China
| | - Shaoning Yu
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
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Ottonello A, Wyllie JA, Yahiaoui O, Sun S, Koelln RA, Homer JA, Johnson RM, Murray E, Williams P, Bolla JR, Robinson CV, Fallon T, Soares da Costa TP, Moses JE. Shapeshifting bullvalene-linked vancomycin dimers as effective antibiotics against multidrug-resistant gram-positive bacteria. Proc Natl Acad Sci U S A 2023; 120:e2208737120. [PMID: 37011186 PMCID: PMC10104512 DOI: 10.1073/pnas.2208737120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 02/24/2023] [Indexed: 04/05/2023] Open
Abstract
The alarming rise in superbugs that are resistant to drugs of last resort, including vancomycin-resistant enterococci and staphylococci, has become a significant global health hazard. Here, we report the click chemistry synthesis of an unprecedented class of shapeshifting vancomycin dimers (SVDs) that display potent activity against bacteria that are resistant to the parent drug, including the ESKAPE pathogens, vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), as well as vancomycin-resistant S. aureus (VRSA). The shapeshifting modality of the dimers is powered by a triazole-linked bullvalene core, exploiting the dynamic covalent rearrangements of the fluxional carbon cage and creating ligands with the capacity to inhibit bacterial cell wall biosynthesis. The new shapeshifting antibiotics are not disadvantaged by the common mechanism of vancomycin resistance resulting from the alteration of the C-terminal dipeptide with the corresponding d-Ala-d-Lac depsipeptide. Further, evidence suggests that the shapeshifting ligands destabilize the complex formed between the flippase MurJ and lipid II, implying the potential for a new mode of action for polyvalent glycopeptides. The SVDs show little propensity for acquired resistance by enterococci, suggesting that this new class of shapeshifting antibiotic will display durable antimicrobial activity not prone to rapidly acquired clinical resistance.
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Affiliation(s)
- Alessandra Ottonello
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC3086, Australia
| | - Jessica A. Wyllie
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC3086, Australia
| | - Oussama Yahiaoui
- Department of Chemistry, School of Physical Sciences, The University of Adelaide, Adelaide, SA5005, Australia
| | - Shoujun Sun
- Cancer Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Rebecca A. Koelln
- Cancer Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Joshua A. Homer
- Cancer Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Robert M. Johnson
- Cancer Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Ewan Murray
- National Biofilms Innovation Centre, Biodiscovery Institute and School of Life Sciences, University of Nottingham, University Park, NottinghamNG7 2RD, U.K.
| | - Paul Williams
- National Biofilms Innovation Centre, Biodiscovery Institute and School of Life Sciences, University of Nottingham, University Park, NottinghamNG7 2RD, U.K.
| | - Jani R. Bolla
- Department of Biology, University of Oxford, OxfordOX1 3RB, U.K.
- The Kavli Institute for Nanoscience Discovery, University of Oxford, OxfordOX1 3QU, U.K.
| | - Carol V. Robinson
- The Kavli Institute for Nanoscience Discovery, University of Oxford, OxfordOX1 3QU, U.K.
- Physical and Theoretical Chemistry Laboratory, University of Oxford, OxfordOX1 3QZ, U.K.
| | - Thomas Fallon
- Department of Chemistry, School of Physical Sciences, The University of Adelaide, Adelaide, SA5005, Australia
| | | | - John E. Moses
- Cancer Center, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
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42
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Jiao H, Cao X. Key characters of glycodrugs. Med Res Rev 2023. [PMID: 36942783 DOI: 10.1002/med.21944] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 02/01/2023] [Accepted: 02/26/2023] [Indexed: 03/23/2023]
Abstract
Glycodrug is an important chemical medicine category derived from biological carbohydrates and their mimics. However, the fundamental logic and features of glycodrugs are obscure issues. To make it easier to understand, four key characters of glycodrugs are extracted for reference. First, Glc relating drugs are key guards in glycometabolism. Second, Rib, GlcN/GalN, and Sia relating drugs are efficient modulators in life signaling regulations. Third, rare sugar relating drugs are effective weapons against various pathogens. Finally, glycosylation modifications are helpful strategies for druggability enhancement. In light of such key characters, more innovative glycodrugs will emerge in the future.
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Affiliation(s)
- Heng Jiao
- Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical College, Shanghai, China
| | - Xin Cao
- Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical College, Shanghai, China
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43
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Navaneetha T, Ali A, Ramana CV, Baskar V. Discrete Molecular Aggregates Based on Zn II and Sb III/V Ions Displaying Efficient Antibacterial and Antioxidant Properties. Inorg Chem 2023; 62:5237-5247. [PMID: 36943193 DOI: 10.1021/acs.inorgchem.3c00247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The reactions of [Zn3Cl2(3,5-Me2PzH)4(t-BuPO3)2] with organostibonic acid in varying reaction conditions have been investigated. Single-crystal X-ray diffraction studies reveal the formation of [Zn2(p-ClC6H4Sb)2(O)2(OCH3)2(t-BuPO3)3(py)2] (1), [Zn2(p-ClC6H4SbV)4(SbIII)2(O)8(t-BuPO3H)4(t-BuPO3)2(py)2Cl2] (2), and [Zn2(RSb)4(O)4(OCH3)4(t-BuPO3)4(py)2], where R = p-ClC6H4 (3) and R = p-iPrC6H4 (4), respectively. Interestingly, in the synthesis of 2, complete dearylation of organoantimony moieties followed by C-F bond formation, a reduction from Sb (V) to Sb (III), and Sb···Cl weak intermolecular interactions have been observed. ESI-MS studies suggested that clusters 1-4 maintained their structural integrity in the solution state also. Solution NMR studies (1H, 31P, and 13C) support well the observed solid-state structures. 1-4 were tested for antibacterial activity using a microdilution assay. 1 and 4 showed the best activity with lower MIC values (0.78-6.25 μg/mL) against all the tested pathogens. The total antioxidant activity of 1-4 was evaluated through the phosphomolybdenum assay, which showed a total antioxidant activity ranging from 28.96 to 86.46 mg AAE/g compound with the ascorbic acid standard.
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Affiliation(s)
- Tokala Navaneetha
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Ashif Ali
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Ch Venkata Ramana
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Viswanathan Baskar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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44
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Synthetic Biology Facilitates Antimicrobials Discovery. Antibiotics (Basel) 2023; 12:antibiotics12030578. [PMID: 36978445 PMCID: PMC10044893 DOI: 10.3390/antibiotics12030578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
We are currently facing two big global challenges: antibiotics shortage and multidrug resistance [...]
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45
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Zeng C, Avula SR, Meng J, Zhou C. Synthesis and Biological Evaluation of Piperazine Hybridized Coumarin Indolylcyanoenones with Antibacterial Potential. Molecules 2023; 28:molecules28062511. [PMID: 36985486 PMCID: PMC10056909 DOI: 10.3390/molecules28062511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/24/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
A class of piperazine hybridized coumarin indolylcyanoenones was exploited as new structural antibacterial frameworks to combat intractable bacterial resistance. Bioactive assessment discovered that 4-chlorobenzyl derivative 11f showed a prominent inhibition on Pseudomonas aeruginosa ATCC 27853 with a low MIC of 1 μg/mL, which was four-fold more effective than norfloxacin. Importantly, the highly active 11f with inconspicuous hemolysis towards human red blood cells displayed quite low proneness to trigger bacterial resistance. Preliminary explorations on its antibacterial behavior disclosed that 11f possessed the ability to destroy bacterial cell membrane, leading to increased permeability of inner and outer membranes, the depolarization and fracture of membrane, and the effusion of intracellular components. Furthermore, bacterial oxidative stress and metabolic turbulence aroused by 11f also accelerated bacterial apoptosis. In particular, 11f could not only effectively inset into DNA, but also bind with DNA gyrase through forming supramolecular complex, thereby affecting the biological function of DNA. The above findings of new piperazine hybridized coumarin indolylcyanoenones provided an inspired possibility for the treatment of resistant bacterial infections.
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Affiliation(s)
- Chunmei Zeng
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Srinivasa Rao Avula
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jiangping Meng
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, College of Pharmacy, Chongqing University of Arts and Sciences, Chongqing 402160, China
- Correspondence: (J.M.); (C.Z.)
| | - Chenghe Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
- Correspondence: (J.M.); (C.Z.)
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46
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Yi Y, Yang S, Liu Y, Yin B, Zhao Z, Li G, Huang Z, Chen L, Liu F, Shang R, Lin S. Antibiotic resistance and drug modification: Synthesis, characterization and bioactivity of newly modified potent pleuromutilin derivatives with a substituted piperazine moiety. Bioorg Chem 2023; 132:106353. [PMID: 36669358 DOI: 10.1016/j.bioorg.2023.106353] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/27/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
Antibiotic-resistant bacteria pose a major global public health concern, owing to the lack of effective antibacterial drugs. Consequently, the discovery and development of innovative antibacterial drug classes with unique mechanisms of action are urgently needed. In this study, we designed, synthesised, and tested a series of novel pleuromutilin derivatives with piperazine linker substituted by amino acids moieties to determine their antibacterial properties. Most synthesized compounds exhibited potent activities against Staphylococcus aureus (S. aureus), methicillin-resistant S. aureus (MRSA), and methicillin-resistant Staphylococcus epidermidis. Compound 6l, the most potent antibacterial agent created in this study, displayed a rapid bactericidal activity against MRSA, Klebsiella pneumoniae and S. aureus cfr N12. Moreover, pharmacokinetics study of compound 6l exhibited good PK performance with a low in vivo clearance (CL = 1965 mL/h/kg) and a suitable half-life (T1/2 = 11.614 ± 5.123 h). Molecular docking experiments revealed the binding model of compound 6l to the unmethylated A2503 of peptidyl transferase centre of 23S rRNA. Interaction pattern of 6l with cfr-mediated ribosomes revealed by molecular dynamics. Moreover in vivo mouse systemic infection experiments with compound 6l revealed its effectiveness against MRSA and S. aureus cfr N12 with the ED50 of 11.08 mg/kg and 14.63 mg/kg body weight, respectively.
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Affiliation(s)
- Yunpeng Yi
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Shifa Yang
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Yueyue Liu
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Bin Yin
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Zengcheng Zhao
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Guiming Li
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Zhongli Huang
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China
| | - Lei Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, Shandong, China
| | - Fei Liu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250023, Shandong, China
| | - Ruofeng Shang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China.
| | - Shuqian Lin
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, Shandong, China.
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47
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Teng P, Shao H, Huang B, Xie J, Cui S, Wang K, Cai J. Small Molecular Mimetics of Antimicrobial Peptides as a Promising Therapy To Combat Bacterial Resistance. J Med Chem 2023; 66:2211-2234. [PMID: 36739538 DOI: 10.1021/acs.jmedchem.2c00757] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Clinically, antibiotics are widely used to treat infectious diseases; however, excessive drug abuse and overuse exacerbate the prevalence of drug-resistant bacterial pathogens, making the development of novel antibiotics extremely difficult. Antimicrobial peptide (AMP) is one of the most promising candidates for overcoming bacterial resistance owing to its unique structure and mechanism of action. This study examines the development of small molecular mimetics of AMPs over the past two decades. These mimetics can selectively disrupt membranes, which are the characteristic antibacterial mechanism of AMPs. In addition, the advantages and disadvantages of small AMP mimetics are discussed. The small molecular mimetics of AMPs are anticipated to garner interest and investment in discovering new antibiotics. This Perspective will assist in revitalizing the golden age of antibiotics in the current era of combating bacterial resistance.
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Affiliation(s)
- Peng Teng
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Haodong Shao
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Bo Huang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
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48
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Xia J, Xin L, Li J, Tian L, Wu K, Zhang S, Yan W, Li H, Zhao Q, Liang C. Discovery of Quaternized Pyridine-Thiazole-Pleuromutilin Derivatives with Broad-Spectrum Antibacterial and Potent Anti-MRSA Activity. J Med Chem 2023; 66:5061-5078. [PMID: 37051724 DOI: 10.1021/acs.jmedchem.2c02135] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
The quaternization of compounds has emerged as a promising molecular design strategy for the development of antibiotics. Herein, we report the design, synthesis, antibacterial activities, and structure-activity relationships of a series of novel pleuromutilin derivatives containing a quaternary amine C-14 side chain. Most of these derivatives exhibited broad-spectrum antibacterial activity against the tested bacteria. 10b was the most effective antibacterial agent that displayed excellent antibacterial activity against five clinical methicillin-resistant Staphylococcus aureus (MRSA) isolates, remarkable antimycoplasma activity, rapid bactericidal effects, and a strong ability to damage bacterial biofilms. Further mechanistic studies indicated that 10b destroyed bacterial cell membranes to exert its antibacterial effects. Moreover, 10b exhibited high survival protection and potent in vivo antibacterial efficacy (ED50 = 4.94 mg/kg) in a mouse model of systemic MRSA infection. These findings suggest that 10b is a promising candidate for the treatment of multi-drug-resistant infectious diseases, especially MRSA infections.
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Affiliation(s)
- Juan Xia
- Laboratory of Hematologic Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, P. R. China
| | - Liang Xin
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Jingyi Li
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Lei Tian
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Kangxiong Wu
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Shaojun Zhang
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Wenjing Yan
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Han Li
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Qianqian Zhao
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
| | - Chengyuan Liang
- School of Biology and Medicine, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
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49
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Antibiotic thermorubin tethers ribosomal subunits and impedes A-site interactions to perturb protein synthesis in bacteria. Nat Commun 2023; 14:918. [PMID: 36806263 PMCID: PMC9938272 DOI: 10.1038/s41467-023-36528-7] [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: 07/21/2022] [Accepted: 02/03/2023] [Indexed: 02/19/2023] Open
Abstract
Thermorubin (THB) is a long-known broad-spectrum ribosome-targeting antibiotic, but the molecular mechanism of its action was unclear. Here, our precise fast-kinetics assays in a reconstituted Escherichia coli translation system and 1.96 Å resolution cryo-EM structure of THB-bound 70S ribosome with mRNA and initiator tRNA, independently suggest that THB binding at the intersubunit bridge B2a near decoding center of the ribosome interferes with the binding of A-site substrates aminoacyl-tRNAs and class-I release factors, thereby inhibiting elongation and termination steps of bacterial translation. Furthermore, THB acts as an anti-dissociation agent that tethers the ribosomal subunits and blocks ribosome recycling, subsequently reducing the pool of active ribosomes. Our results show that THB does not inhibit translation initiation as proposed earlier and provide a complete mechanism of how THB perturbs bacterial protein synthesis. This in-depth characterization will hopefully spur efforts toward the design of THB analogs with improved solubility and effectivity against multidrug-resistant bacteria.
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50
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Qumsani AT. Role of Nanocarrier Systems in Drug Delivery for Overcoming Multi-Drug Resistance in Bacteria. Pak J Biol Sci 2023; 26:131-137. [PMID: 37480270 DOI: 10.3923/pjbs.2023.131.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Multidrug-resistant (MDR) bacteria have risen alarmingly in the last few decades, posing a serious threat to human health. The need for effective bacterial resistance treatment is urgent and unmet due to the rise in morbidity and mortality that has coincided with the prevalence of infections caused by MDR bacteria. Using its creative and unconventional methods, effective antibiotics for MDR bacteria could be developed using nanomedicine techniques. To combat microbial resistance, a number of strategies have been developed, including the use of natural bactericides, the introduction of fresh antibiotics, the application of combination therapy and the creation of NP-based antibiotic nanocarriers. The absence of novel antibacterial agents has worsened the situation for MDR bacteria. Ineffective antibiotics used to treat MDR bacteria also contribute to the bacteria's tolerance growing. Nanoparticles (NPs) are the most efficient method for eliminating MDR bacteria because they serve as both carriers of natural antibiotics and antimicrobials and active agents against bacteria. Additionally, surface engineering of nanocarriers has important benefits for focusing on and modifying a variety of resistance mechanisms. The use of nanocarrier systems in drug delivery for overcoming bacterial resistance is covered in this review along with various mechanisms of antibiotic resistance.
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