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Zhong R, Xu Z, Zhang S, Zeng M, Li H, Liu S, Lin S. Development of novel bisphenol derivatives with a membrane-targeting mechanism as potent gram-positive antibacterial agents. Eur J Med Chem 2024; 274:116544. [PMID: 38850855 DOI: 10.1016/j.ejmech.2024.116544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/18/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024]
Abstract
Antibiotic resistance is becoming increasingly severe. The development of small molecular antimicrobial peptides is regarded as a promising design strategy for antibiotics. Here, a series of bisphenol derivatives with amphiphilic structures were designed and synthesized as antibacterial agents by imitating the design strategy of antimicrobial peptides. After a series of structural optimizations, lead compound 43 was identified, which exhibited excellent antibacterial activity against Gram-positive bacterial strains (MICs = 0.78-1.56 μg/mL), poor hemolytic activity (HC50 > 200 μg/mL), and low cytotoxicity (CC50 > 100 μg/mL). Further biological evaluation results indicated that 43 exerted antibacterial effects by directly destroying bacterial cell membranes and displayed rapid bactericidal properties (within 0.5-1 h), leading to a very low probability of drug resistance. Moreover, in a murine model of corneal infection, 43 exhibited a strong in vivo antibacterial efficacy. These findings indicate that 43 is a promising candidate compound for the treatment of bacterial infections.
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Affiliation(s)
- Rongcui Zhong
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zikai Xu
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shujun Zhang
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Minghui Zeng
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haizhou Li
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shouping Liu
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Shuimu Lin
- Affiliated Qingyuan Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, State Key Laboratory of Respiratory Disease, and School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
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2
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Chaudhary K, Agrahari B, Biswas B, Chatterjee N, Chaudhary A, Kumar A, Sonker H, Dewan S, Saxena D, Akhir A, Malhotra N, Chopra S, Misra S, Matheswaran S, Singh RG. Pyridine-2,6-Dicarboxamide Proligands and their Cu(II)/Zn(II) Complexes Targeting Staphylococcus Aureus for the Attenuation of In Vivo Dental Biofilm. Adv Healthc Mater 2024; 13:e2400378. [PMID: 38621382 DOI: 10.1002/adhm.202400378] [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: 02/10/2024] [Revised: 04/07/2024] [Indexed: 04/17/2024]
Abstract
In the pursuit to combat stubborn bacterial infections, particularly those stemming from gram-positive bacteria, this study is an attempt to craft a precision-driven platform characterized by unparalleled selectivity, specificity, and synergistic antimicrobial mechanisms. Leveraging remarkable potential of metalloantibiotics in antimicrobial applications, herein, this work rationally designs, synthesizes, and characterizes a new library of Pyridine-2,6-dicarboxamide ligands and their corresponding transition metal Cu(II)/Zn(II) complexes. The lead compound L11 demonstrates robust antibacterial properties against Staphylococcus aureus (Minimum Inhibitory Concentration (MIC) = 2-16 µg mL-1), methicillin and vancomycin-resistant S. aureus (MIC = 2-4 µg mL-1) and exhibit superior antibacterial activity when compared to FDA-approved vancomycin, the drug of last resort. Additionally, the compound exhibits notable antimicrobial efficacy against resistant enterococcus strains (MIC = 2-8 µg mL-1). To unravel mechanistic profile, advanced imaging techniques including SEM and AFM are harnessed, collectively suggesting a mechanistic pathway involving cell wall disruption. Live/dead fluorescence studies further confirm efficacy of L11 and its complexes against S. aureus membranes. This translational exploration extends to a rat model, indicating promising in vivo therapeutic potential. Thus, this comprehensive research initiative has capabilities to transcends the confines of this laboratory, heralding a pivotal step toward combatting antibiotic-resistant pathogens and advancing the frontiers of metalloantibiotics-based therapy with a profound clinical implication.
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Affiliation(s)
| | | | - Bhumika Biswas
- Department of Biological Sciences and Bioengineering, IIT, Kanpur, 208016, India
| | - Niranjan Chatterjee
- Department of Biological Sciences and Bioengineering, IIT, Kanpur, 208016, India
| | | | | | | | - Sayari Dewan
- Department of Chemistry, IIT, Kanpur, 208016, India
| | - Deepanshi Saxena
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Nidhi Malhotra
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Budh Nagar, 201314, India
| | - Sidharth Chopra
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Santosh Misra
- Department of Biological Sciences and Bioengineering, IIT, Kanpur, 208016, India
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3
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Chen G, Bai J, Wu X, Huo X, Li Y, Lei P, Ma Z. Amphiphilic amidines as potential plasmic membrane-targeting antifungal agents: synthesis, bio-activities and QSAR. PEST MANAGEMENT SCIENCE 2024. [PMID: 38877543 DOI: 10.1002/ps.8253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/17/2024] [Accepted: 06/04/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Cationic antimicrobial peptides (AMPs) possess broad-spectrum biological activities with less inclination to inducing antibiotic resistance. Herein a battery of amphiphilic amidines were designed by mimicking the characteristics of AMPs. The antifungal activities and the effects to the hyphal morphology and membrane permeability were investigated. RESULTS The results indicated the inhibitory rates of ten compounds were over 80% to Botrytis cinerea and ten compounds over 90% to Valsa mali Miyabe et Yamada at 50 mg L-1. The half maximal effective concentration (EC50) values of compound 5g and 6g to V. mali were 1.21 and 1.90 mg L-1 respectively. The protective rate against apple canker of compound 5g reached 93.4% at 100 mg L-1 on twigs, superior to carbendazim (53.3%). When treated with 5g, the cell membrane permeability and leakage of content of V. mali increased, accompanied with the decrease of superoxide dismutase (SOD) and catalase (CAT) level. Concurrently, the mycelial hyphae contracted, wrinkled, and collapsed, providing evidence of membrane perturbation. A three-dimensional quantitative structure-activity relationship (3D-QSAR) between the topic compounds and the EC50 to V. mali was established showing good predictability (r2 = 0.971). CONCLUSION Amphiphilic amidines can acquire antifungal activities by acting on the plasmic membrane. Compound 5g could be a promising lead in discovering novel fungicidal candidates. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Guangyou Chen
- College of Plant Protection, Northwest A&F University, Yangling, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, China
| | - Jing Bai
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xinyan Wu
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xinyi Huo
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Yongqiang Li
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Peng Lei
- College of Plant Protection, Northwest A&F University, Yangling, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A&F University, Yangling, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, China
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4
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Tan YM, Zhang J, Wei YJ, Hu YG, Li SR, Zhang SL, Zhou CH. Cyanomethylquinolones as a New Class of Potential Multitargeting Broad-Spectrum Antibacterial Agents. J Med Chem 2024; 67:9028-9053. [PMID: 38787534 DOI: 10.1021/acs.jmedchem.4c00238] [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: 05/25/2024]
Abstract
This work identified a class of cyanomethylquinolones (CQs) and their carboxyl analogues as potential multitargeting antibacterial candidates. Most of the prepared compounds showed high antibacterial activities against most of the tested bacteria, exhibiting lower MIC values (0.125-2 μg/mL) than those of clinical norfloxacin, ciprofloxacin, and clinafloxacin. The low hemolysis, drug resistance, and cytotoxicity, as well as good predictive pharmacokinetics of active CQs and carboxyl analogues revealed their development potential. Furthermore, they could eradicate the established biofilm, facilitating bacterial exposure to these antibacterial candidates. These active compounds could induce bacterial death through multitargeting effects, including intercalating into DNA, up-regulating reactive oxygen species, damaging membranes directly, and impeding metabolism. Moreover, the highly active cyclopropyl CQ 15 exhibited more effective in vivo anti-MRSA potency than ciprofloxacin. These findings highlight the potential of CQs and their carboxyl analogues as multitargeting broad-spectrum antibacterial candidates for treating intractable bacterial infections.
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Affiliation(s)
- Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jing Zhang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yu-Jia Wei
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yue-Gao Hu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shu-Rui Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shao-Lin Zhang
- School of Pharmaceutical Sciences, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chongqing University, Chongqing 401331, PR China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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5
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Fang S, Kang WT, Li H, Cai Q, Liang W, Zeng M, Yu Q, Zhong R, Tao Y, Liu S, Lin S. Development of cannabidiol derivatives as potent broad-spectrum antibacterial agents with membrane-disruptive mechanism. Eur J Med Chem 2024; 266:116149. [PMID: 38266554 DOI: 10.1016/j.ejmech.2024.116149] [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: 11/06/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/26/2024]
Abstract
The emergence of antibiotic resistance has brought a significant burden to public health. Here, we designed and synthesized a series of cannabidiol derivatives by biomimicking the structure and function of cationic antibacterial peptides. This is the first report on the design of cannabidiol derivatives as broad-spectrum antibacterial agents. Through the structure-activity relationship (SAR) study, we found a lead compound 23 that killed both Gram-negative and Gram-positive bacteria via a membrane-targeting mechanism of action with low resistance frequencies. Compound 23 also exhibited very weak hemolytic activity, low toxicity toward mammalian cells, and rapid bactericidal properties. To further validate the membrane action mechanism of compound 23, we performed transcriptomic analysis using RNA-seq, which revealed that treatment with compound 23 altered many cell wall/membrane/envelope biogenesis-related genes in Gram-positive and Gram-negative bacteria. More importantly, compound 23 showed potent in vivo antibacterial efficacy in murine corneal infection models caused by Staphylococcus aureus or Pseudomonas aeruginosa. These findings would provide a new design idea for the discovery of novel broad-spectrum antibacterial agents to overcome the antibiotic resistance crisis.
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Affiliation(s)
- Shanfang Fang
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Wen-Tyng Kang
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Haizhou Li
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Qiongna Cai
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Wanxin Liang
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Minghui Zeng
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Qian Yu
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Rongcui Zhong
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yiwen Tao
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Shouping Liu
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Shuimu Lin
- The Fifth Affiliated Hospital & Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
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6
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Ding YY, Zhou H, Peng-Deng, Zhang BQ, Zhang ZJ, Wang GH, Zhang SY, Wu ZR, Wang YR, Liu YQ. Antimicrobial activity of natural and semi-synthetic carbazole alkaloids. Eur J Med Chem 2023; 259:115627. [PMID: 37467619 DOI: 10.1016/j.ejmech.2023.115627] [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: 04/07/2023] [Revised: 06/22/2023] [Accepted: 07/06/2023] [Indexed: 07/21/2023]
Abstract
Since the first natural carbazole alkaloid, murrayanine, was isolated from Mwraya Spreng, carbazole alkaloid derivatives have been widely concerned for their anti-tumor, anti-viral and anti-bacterial activities. In recent decades, a growing body of data suggest that carbazole alkaloids and their derivatives have different biological activities. This is the first comprehensive description of the antifungal and antibacterial activities of carbazole alkaloids in the past decade (2012-2022), including natural and partially synthesized carbazole alkaloids in the past decade. Finally, the challenges and problems faced by this kind of alkaloids are summarized. This paper will be helpful for further exploration of this kind of alkaloids.
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Affiliation(s)
- Yan-Yan Ding
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, 313000, China
| | - Han Zhou
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Peng-Deng
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Bao-Qi Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Zhi-Jun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Guang-Han Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Shao-Yong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, 313000, China
| | - Zheng-Rong Wu
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yi-Rong Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, 313000, China; State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou, 730000, China.
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7
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Wang R, Zhou X, Chen J, Chen Y, Xiong Y, Duan X, Liao X, Wang J. Ruthenium polypyridine complexes containing prenyl groups as antibacterial agents against Staphylococcus aureus through a membrane-disruption mechanism. Arch Pharm (Weinheim) 2023; 356:e2300175. [PMID: 37421212 DOI: 10.1002/ardp.202300175] [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: 03/25/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 07/10/2023]
Abstract
Four new ruthenium polypyridyl complexes with prenyl groups, [Ru(bpy)2 (MHIP)](PF6 )2 (Ru(II)-1), [Ru(dtb)2 (MHIP)](PF6 )2 (Ru(II)-2), [Ru(dmb)2 (MHIP)](PF6 )2 (Ru(II)-3), and [Ru(dmob)2 (MHIP)](PF6 )2 (Ru(II)-4) (bpy = 2,2'-bipyridine, dtb = 4,4'-di-tert-butyl-2,2'-bipyridine, dmb = 4,4'-dimethyl-2,2'-bipyridine, dmob = 4,4'-dimethoxy-2,2'-bipyridine, and MHIP = 2-(2,6-dimethylhepta-1,5-dien-1-yl)-1H-imidazo[4,f][1,10]phenanthroline), were synthesized and characterized. Their antibacterial activities against Staphylococcus aureus were assessed, and the minimum inhibition concentration (MIC) value of Ru(II)-2 against S. aureus was only 0.5 µg/mL, showing the best antibacterial activity among them. S. aureus could be quickly killed by Ru(II)-2 in 30 min and Ru(II)-2 displayed an obvious inhibitive effect on the formation of a biofilm, which was essential to avoid the development of drug-resistance. Meanwhile, Ru(II)-2 exhibited a stable MIC value against antibiotic-resistant bacteria. The antibacterial mechanism of Ru(II)-2 was probably related to depolarization of the cell membrane, and a change of permeability was associated with the formation of reactive oxygen species, leading to leakage of nucleic acid and bacterial death. Furthermore, Ru(II)-2 hardly showed toxicity to mammalian cells and the Galleria mellonella worm. Finally, murine infection studies also illustrated that Ru(II)-2 was highly effective against S. aureus in vivo.
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Affiliation(s)
- Runbin Wang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Xiaomin Zhou
- Shenzhen Second People's Hospital, Shenzhen, China
| | - Jingjing Chen
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Yushou Chen
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Yanshi Xiong
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Xuemin Duan
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Xiangwen Liao
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Jintao Wang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
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8
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Dey S, Patel A, Haloi N, Srimayee S, Paul S, Barik GK, Akhtar N, Shaw D, Hazarika G, Prusty BM, Kumar M, Santra MK, Tajkhorshid E, Bhattacharjee S, Manna D. Quinoline Thiourea-Based Zinc Ionophores with Antibacterial Activity. J Med Chem 2023; 66:11078-11093. [PMID: 37466499 DOI: 10.1021/acs.jmedchem.3c00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The increasing resistance of bacteria to commercially available antibiotics threatens patient safety in healthcare settings. Perturbation of ion homeostasis has emerged as a potential therapeutic strategy to fight against antibacterial resistance and other channelopathies. This study reports the development of 8-aminoquinoline (QN) derivatives and their transmembrane Zn2+ transport activities. Our findings showed that a potent QN-based Zn2+ transporter exhibits promising antibacterial properties against Gram-positive bacteria with reduced hemolytic activity and cytotoxicity to mammalian cells. Furthermore, this combination showed excellent in vivo efficacy against Staphylococcus aureus. Interestingly, this combination prevented bacterial resistance and restored susceptibility of gentamicin and methicillin-resistant S. aureus to commercially available β-lactam and other antibiotics that had lost their activity against the drug-resistant bacterial strain. Our findings suggest that the transmembrane transport of Zn2+ by QN derivatives could be a promising strategy to combat bacterial infections and restore the activity of other antibiotics.
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Affiliation(s)
- Subhasis Dey
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjali Patel
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Nandan Haloi
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Soumya Srimayee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Suman Paul
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | | | - Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipanjan Shaw
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Gunanka Hazarika
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Biswa Mohan Prusty
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Mohit Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | - Emad Tajkhorshid
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Surajit Bhattacharjee
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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9
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Yuan D, Liu S, Li S, Liu R, Zhu X. Design, Synthesis and Biological Evaluation of 7-Substituted-1,3-diaminopyrrol[3,2-f]quinazolines as Potential Antibacterial Agents. ChemMedChem 2023; 18:e202300078. [PMID: 37017005 DOI: 10.1002/cmdc.202300078] [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: 02/10/2023] [Revised: 03/29/2023] [Accepted: 04/04/2023] [Indexed: 04/06/2023]
Abstract
The evolution of drug-resistant bacteria poses a serious threat to public health; hence, it is imperative to develop new and efficient antibiotics. Irresistin-16 (IRS-16) is a dual-target antibacterial candidate that affects folate biosynthesis and membrane integrity and exhibits potent lethality against various bacteria. In this study, a series of 1,3-diamino-7H-pyrrol[3,2-f]quinazoline (DAPQ) derivatives based on IRS-16 was designed and synthesized to identify outstanding antibacterial candidates. The most promising compound, 7-(4-(4-methylpiperazin-1-yl) benzyl)-7H-pyrrol[3,2-f] quinazoline-1,3-diamine (18 e), displayed excellent antibacterial activity against both gram-positive and gram-negative bacteria (minimum inhibitory concentrations=1-4 μg/mL), improved water solubility, poor hemolytic activity and low cytotoxicity. Compound 18 e exhibited rapid bactericidal properties and prevented bacterial resistance in laboratory simulations. These results provide a basis for the development of new DAPQ-based compounds to combat emerging bacterial resistance.
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Affiliation(s)
- Duo Yuan
- School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Shangde Liu
- School of Pharmacy, Tsinghua University, Beijing, 100084, China
| | - Shanshan Li
- School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Rongrong Liu
- School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiong Zhu
- School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
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10
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Elsaid M, Ge R, Liu C, Maiti D, Ge H. Site-Selective C-H Functionalization of Carbazoles. Angew Chem Int Ed Engl 2023:e202303110. [PMID: 37186413 DOI: 10.1002/anie.202303110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
Carbazole alkaloids hold great potential in pharmaceutical and material sciences. However, the current approaches for C1 functionalization of carbazoles rely on the use of a pre-installed directing group, severely limiting their applicability and hindering their overall efficiency. Herein, we report for the first time the development of direct Pd-catalyzed C-H alkylation and acylation of carbazoles assisted by norbornene (NBE) as a transient directing mediator. Notably, the involvement of a six-membered palladacycle intermediate was suggested in this case, representing the first example of such intermediacy within the extensively studied Pd/norbornene reactions realm.
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Affiliation(s)
- Mazen Elsaid
- Texas Tech University, Chemistry and Biochemistry, UNITED STATES
| | - Robbie Ge
- Texas Tech University, Chemistry and Biochemistry, UNITED STATES
| | - Chong Liu
- Texas Tech University, Chemistry, UNITED STATES
| | | | - Haibo Ge
- Texas Tech University, Chemistry and Biochemistry, 1204 Boston Avenue, 79409, Lubbock, UNITED STATES
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11
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Xu Z, Yao J, Zhong K, Lin S, Hu X, Ruan Z. Electrochemical Selenylation of Sulfoxonium Ylides for the Synthesis of gem-Diselenides as Antimicrobials against Fungi. J Org Chem 2023; 88:5572-5585. [PMID: 37083436 DOI: 10.1021/acs.joc.3c00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Organoselenium compounds are important scaffolds in pharmaceutical molecules. Herein, we report metal-free, electrochemical, highly chemo- and regioselective synthesis of gem-diselenides through the coupling of α-keto sulfoxonium ylides with diselenides. The versatility of the electrochemical manifold enabled the selenylation with ample scope and broad functional group tolerance, as well as setting the stage for modification of complex bioactive molecules. Detailed mechanistic studies revealed that the key C-Se bond was constructed using n-Bu4NI as an electrolyte and catalyst through the electrosynthetic protocol. Finally, the desired α-keto gem-diselenides showed excellent antimicrobial activity against Candida albicans, which can be identified as the lead compounds for further exploration.
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Affiliation(s)
- Zhongnan Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
| | - Jiwen Yao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
| | - Kaihui Zhong
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
| | - Shuimu Lin
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
| | - Xinwei Hu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
| | - Zhixiong Ruan
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou, Guangzhou Medical University, Guangzhou 511436, P. R. China
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12
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Teng P, Shao H, Huang B, Xie J, Cui S, Wang K, Cai J. Small Molecular Mimetics of Antimicrobial Peptides as a Promising Therapy To Combat Bacterial Resistance. J Med Chem 2023; 66:2211-2234. [PMID: 36739538 DOI: 10.1021/acs.jmedchem.2c00757] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Clinically, antibiotics are widely used to treat infectious diseases; however, excessive drug abuse and overuse exacerbate the prevalence of drug-resistant bacterial pathogens, making the development of novel antibiotics extremely difficult. Antimicrobial peptide (AMP) is one of the most promising candidates for overcoming bacterial resistance owing to its unique structure and mechanism of action. This study examines the development of small molecular mimetics of AMPs over the past two decades. These mimetics can selectively disrupt membranes, which are the characteristic antibacterial mechanism of AMPs. In addition, the advantages and disadvantages of small AMP mimetics are discussed. The small molecular mimetics of AMPs are anticipated to garner interest and investment in discovering new antibiotics. This Perspective will assist in revitalizing the golden age of antibiotics in the current era of combating bacterial resistance.
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Affiliation(s)
- Peng Teng
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Haodong Shao
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Bo Huang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
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13
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Wang R, Wei M, Wang X, Chen Y, Xiong Y, Cheng J, Tan Y, Liao X, Wang J. Synthesis of ruthenium polypyridine complexes with benzyloxyl groups and their antibacterial activities against Staphylococcus aureus. J Inorg Biochem 2022; 236:111954. [PMID: 35988386 DOI: 10.1016/j.jinorgbio.2022.111954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 12/15/2022]
Abstract
Four new ruthenium polypyridyl complexes, [Ru(bpy)2(BPIP)](PF6)2 (Ru(II)-1), [Ru(dtb)2(BPIP)](PF6)2 (Ru(II)-2), [Ru(dmb)2(BPIP)](PF6)2 (Ru(II)-3) and [Ru(dmob)2(BPIP)](PF6)2 (Ru(II)-4) (bpy = 2,2'-bipyridine, dtb = 4,4'-di-tert-butyl-2,2'-bipyridine, dmb = 4,4'-dimethyl-2,2'-bipyridine, dmob = 4,4'-dimethoxy-2,2'-bipyridine and BPIP = 2-(3,5-bis(benzyloxyl)phenyl)-1H-imidazo[4,5-f][1,10]phenanthroline) had been synthesized and characterized. Their antimicrobial activities were investigated against Staphylococcus aureus (S. aureus) and four complexes showed obvious antibacterial effect, especially the minimum inhibition concentration (MIC) value of Ru(II)-3 was only 4 μg/mL. In addition, Ru(II)-3 was able to kill bacteria quickly and inhibit the formation of biofilm. Meanwhile, the cooperative effect between Ru(II)-3 and general antibiotics were tested and the results showed that Ru(II)-3 could enhance the susceptibility of S. aureus to different types of antibiotics. Most importantly, Ru(II)-3 hardly showed cytotoxicity to mammalian erythrocytes both in homelysis experiment and G. mellonella model. After being injected with high doses of the Ru(II)-3in vivo, the G. mellonella worms still exhibited high survival rates. Finally, a mouse skin infection model and G. mellonella infection model was built to determine the antibacterial activity of Ru(II)-3in vivo. The antibacterial mechanism of Ru(II)-3 was probably related to the membrane-disruption. Taken together, ruthenium polypyridine complexes with benzyloxyl groups had the potential to develop an attractive and untraditional antibacterial agent with new mode of action.
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Affiliation(s)
- Runbin Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China
| | - Ming Wei
- Kangda College of Nanjing Medical University, Lianyungang, Jiangsu 222000, China
| | - Xuerong Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China
| | - Yushou Chen
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China
| | - Yanshi Xiong
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China
| | - Jianxin Cheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China
| | - Yanhui Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, People's Republic of China
| | - Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China.
| | - Jintao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University, Nanchang 330013, People's Republic of China.
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14
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Liu J, Li H, He Q, Chen K, Chen Y, Zhong R, Li H, Fang S, Liu S, Lin S. Design, synthesis, and biological evaluation of tetrahydroquinoline amphiphiles as membrane-targeting antimicrobials against pathogenic bacteria and fungi. Eur J Med Chem 2022; 243:114734. [PMID: 36088756 DOI: 10.1016/j.ejmech.2022.114734] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/15/2022]
Abstract
The rising prevalence of drug-resistant pathogens is one of the biggest threats to human health. The development of new antibiotics that can overcome drug resistance is in urgent need. Herein, we designed and synthesized a series of amphiphilic tetrahydroquinoline derivatives as small-molecule-based antimicrobial peptidomimetics. Two lead compounds 36 and 52 which contained the tetrahydroquinoline core, hydrophobic alkyl chains (n-nonyl or isoprenyl group), different spacer lengths (n = 4 or 8), and cationic guanidine moiety, showed poor hemolytic activity, low cytotoxicity, and potent broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria, as well as fungi. The further biological evaluation revealed that compounds 36 and 52 can kill bacteria and fungi rapidly via membrane-targeting action and avoid drug resistance development. More importantly, compounds 36 and 52 exhibited similarly potent in vivo antimicrobial activities in a murine corneal infection caused by Staphylococcus aureus ATCC29213 or Pseudomonas aeruginosa ATCC9027, as compared to vancomycin or gatifloxacin. These results suggest that compounds 36 and 52 have great potential as new broad-spectrum antimicrobial agents to combat microbial resistance.
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Affiliation(s)
- Jiayong Liu
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hongxia Li
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
| | - Qile He
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Kaiting Chen
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yongzhi Chen
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Rongcui Zhong
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haizhou Li
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shanfang Fang
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shouping Liu
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Shuimu Lin
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
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15
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Fawad Ansari M, Tan YM, Sun H, Li S, Zhou CH. Unique iminotetrahydroberberine-corbelled metronidazoles as potential membrane active broad-spectrum antibacterial agents. Bioorg Med Chem Lett 2022; 76:129012. [DOI: 10.1016/j.bmcl.2022.129012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 12/21/2022]
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16
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Dong H, Zhao L, Chen Y, Li M, Chen W, Wang Y, Wei X, Zhang Y, Zhou Y, Xu M. Dual-Ligand Near-Infrared Luminescent Lanthanide-Based Metal-Organic Framework Coupled with In Vivo Microdialysis for Highly Sensitive Ratiometric Detection of Zn 2+ in a Mouse Model of Alzheimer's Disease. Anal Chem 2022; 94:11940-11948. [PMID: 35981232 DOI: 10.1021/acs.analchem.2c02898] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Zinc, which is the second most abundant trace element in the human central nervous system, is closely associated with Alzheimer's disease (AD). However, attempts to develop highly sensitive and selective sensing systems for Zn2+ in the brain have not been successful. Here, we used a one-step solvothermal method to design and prepare a metal-organic framework (MOF) containing the dual ligands, terephthalic acid (H2BDC) and 2,2':6',2″-terpyridine (TPY), with Eu3+ as a metal node. This MOF is denoted as Eu-MOF/BDC-TPY. Adjustment of the size and morphology of Eu-MOF/BDC-TPY allowed the dual ligands to produce multiple luminescence peaks, which could be interpreted via ratiometric fluorescence to detect Zn2+ using the ratio of Eu3+-based emission, as the internal reference, and ligand-based emission, as the indicator. Thus, Eu-MOF/BDC-TPY not only displayed higher selectivity than other metal cations but also offered a highly accurate, sensitive, wide linear, color change-based technique for detecting Zn2+ at concentrations ranging from 1 nM to 2 μM, with a low limit of detection (0.08 nM). Moreover, Eu-MOF/BDC-TPY maintained structural stability and displayed a fluorescence intensity of at least 95.4% following storage in water for 6 months. More importantly, Eu-MOF/BDC-TPY sensed the presence of Zn2+ markedly rapidly (within 5 s), which was very useful in practical application. Furthermore, the results of our ratiometric luminescent method-based analysis of Zn2+ in AD mouse brains were consistent with those obtained using inductively coupled plasma mass spectrometry.
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Affiliation(s)
- Hui Dong
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Le Zhao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Ya Chen
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Miaomiao Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113000, P. R. China
| | - Weitian Chen
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Yixin Wang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Xiuhua Wei
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Yintang Zhang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Yanli Zhou
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Maotian Xu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
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17
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Ma Y, Wei M, Wang X, Jiang L, Xiong Y, Cheng J, Tan Y, Liao X, Wang J. Synthesis and antibacterial against
S. aureus
of new ruthenium (II) polypyridine complexes containing pyrene groups. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuanyuan Ma
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Ming Wei
- Kangda College of Nanjing Medical University Lianyungang Jiangsu China
| | - Xuerong Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Li Jiang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Yanshi Xiong
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Jianxin Cheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Yanhui Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin People’s Republic of China
| | - Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
| | - Jintao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang People’s Republic of China
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18
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Tan YM, Li D, Li FF, Fawad Ansari M, Fang B, Zhou CH. Pyrimidine-conjugated fluoroquinolones as new potential broad-spectrum antibacterial agents. Bioorg Med Chem Lett 2022; 73:128885. [PMID: 35835379 DOI: 10.1016/j.bmcl.2022.128885] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/26/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022]
Abstract
Pyrimidine-conjugated fluoroquinolones were constructed to cope with the dreadful resistance. Most of the target pyrimidine derivatives effectively suppressed the growth of the tested strains, especially, 4-aminopyrimidinyl compound 1c showed a broad antibacterial spectrum and low cytotoxicity and exhibited superior antibacterial potency against Enterococcus faecalis with a low MIC of 0.25 μg/mL to norfloxacin and ciprofloxacin. The active compound 1c with fast bactericidal potency could inhibit the formation of biofilms and showed much lower trend for the development of drug-resistance than norfloxacin and ciprofloxacin. Further exploration revealed that compound 1c could prompt ROS accumulations in bacterial cells and interact with DNA to form a DNA-1c complex, thus facilitating bacterial death. ADME analysis indicated that compound 1c possessed favorable drug-likeness and promising pharmacokinetic properties. These results demonstrated that pyrimidine-conjugated fluoroquinolones held hope as potential antibacterial candidates and deserve further study.
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Affiliation(s)
- Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Di Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Fen-Fen Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, PR China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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19
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Xie YP, Sangaraiah N, Meng JP, Zhou CH. Unique Carbazole-Oxadiazole Derivatives as New Potential Antibiotics for Combating Gram-Positive and -Negative Bacteria. J Med Chem 2022; 65:6171-6190. [PMID: 35389643 DOI: 10.1021/acs.jmedchem.2c00001] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Novel carbazole-oxadiazoles were developed as new potential antibacterial agents to combat dreadful resistance. Some target compounds displayed predominant inhibitory effects on the tested Gram-positive and -negative bacteria, and carbazole-oxadiazoles 5g, 5i-k, 16a-c, and tetrazole analogues 23b-c were found to be efficient in impeding the growth of MRSA and Pseudomonas aeruginosa ATCC 27853 (MICs = 0.25-4 μg/mL). Furthermore, compounds 5g and 23b-c not only possessed rapid bactericidal ability and low tendency to develop resistance but also exhibited low cytotoxic effects toward Hek 293T, HeLa, and red blood cells (RBCs), especially molecule 5g also showed low toxicity in vivo, which showed the therapeutic potential of these compounds. Further exploration indicated that compounds 5g, 5i, and 23b-c could disintegrate the integrity of bacterial cell membranes to leak the cytoplasmic contents, thus exerting excellent antibacterial effects. These facts mean that carbazole-based antibacterial agents might have bright prospects in confronting bacterial infections.
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Affiliation(s)
- Yun-Peng Xie
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Nagarajan Sangaraiah
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jiang-Ping Meng
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, College of Pharmacy, Chongqing University of Arts and Sciences, Chongqing 402160, P. R. China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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20
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Chen Y, Liu L, Wang X, Liao Z, Wang R, Xiong YS, Chen J, jiang G, Wang J, Liao X. Synthesis and antibacterial activity study of ruthenium-based metallodrugs with membrane-disruptive mechanism against Staphylococcus aureus. Dalton Trans 2022; 51:14980-14992. [DOI: 10.1039/d2dt01531e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The wide spread of drug-resistant bacteria, especially methicillin-resistant Staphylococcus aureus (MRSA), have posed a tremendous threat to global health. Of particular concern, resistance to vancomycin, linezolid and daptomycin have already...
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21
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Sun H, Huang SY, Jeyakkumar P, Cai GX, Fang B, Zhou CH. Natural Berberine-derived Azolyl Ethanols as New Structural Antibacterial Agents against Drug-Resistant Escherichia coli. J Med Chem 2021; 65:436-459. [PMID: 34964345 DOI: 10.1021/acs.jmedchem.1c01592] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Natural berberine-derived azolyl ethanols as new structural antibacterial agents were designed and synthesized for fighting with dreadful bacterial resistance. Partial target molecules exhibited potent activity against the tested strains, particularly, nitroimidazole derivative 4d and benzothiazole-2-thoil compound 18b, with low cytotoxicity both exerted strong antibacterial activities against multidrug-resistant Escherichia coli at low concentrations as 0.007 and 0.006 mM, respectively. Meanwhile, the active compounds 4d and 18b possessed the ability to rapidly kill bacteria and observably eradicate the E. coli biofilm by reducing exopolysaccharide content to prevent bacterial adhesion, which was conducive to alleviating the development of E. coli resistance. Preliminary mechanistic explorations suggested that the excellent antibacterial potential of molecules 4d and 18b might be attributed to their ability to disintegrate membrane, accelerate ROS accumulation, reduce bacterial metabolism, and intercalate into DNA groove. These results provided powerful information for the further exploitation of natural berberine derivatives against bacterial pathogens.
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Affiliation(s)
- Hang Sun
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shi-Yu Huang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ponmani Jeyakkumar
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Cheng-He 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
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22
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Zhang Q, Xiong Y, Cheng J, Tan Y, Liao X, Wang J. Synthesis and biological evaluation of ruthenium polypyridine complexes with 18β-glycyrrhetinic acid as antibacterial agents against Staphylococcus aureus. Dalton Trans 2021; 51:1099-1111. [PMID: 34935812 DOI: 10.1039/d1dt02692e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Four new ruthenium(II) polypyridine complexes bearing 18β-glycyrrhetinic acid derivatives, [Ru(bpy)2L](PF6)2 (Ru1), [Ru(dmb)2L](PF6)2 (Ru2), [Ru(dtb)2L](PF6)2 (Ru3) and [Ru(phen)2L](PF6)2 (Ru4) (bpy = 2,2-bipyridine, dmb = 4,4'-dimethyl-2,2'-bipyridine, dtb = 4,4'-di-tert-butyl-2,2'-bipyridine, phen = 1,10-phenanthroline and L is the GA modified new ligand) were designed and synthesized. Their antimicrobial activities against Staphylococcus aureus (S. aureus) were evaluated and all complexes showed an obvious inhibitory effect, especially, the minimum inhibitory concentration (MIC) value of Ru2 was 3.9 μg mL-1. Moreover, Ru2 was found to significantly inhibit the formation of biofilms. The membrane-compromising action mode was suggested to be their potential antibactericidal mechanism. In hemolysis experiments, Ru2 hardly showed cytotoxicity to mammalian erythrocytes. Furthermore, the synergism between Ru2 and common antibiotics, such as ampicillin, chloramphenicol, tetracyclines and ofloxacin, against S. aureus was also detected using the checkerboard method. Finally, a mouse skin infection model was established to evaluate the antibacterial activity of Ru2in vivo, and the results showed that Ru2 could effectively promote wound healing in mice infected with S. aureus. Moreover, the results of histopathological research were consistent with the results of the hemolysis test, indicating that the Ru2 complex was almost non-toxic. Thus, it was demonstrated that the polypyridine ruthenium complexes modified with glycyrrhetinic acid (GA) are a promising strategy for developing interesting antibacterial agents.
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Affiliation(s)
- Qin Zhang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, People's Republic of China.
| | - Yanshi Xiong
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, People's Republic of China.
| | - Jianxin Cheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, People's Republic of China.
| | - Yanhui Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, People's Republic of China
| | - Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, People's Republic of China.
| | - Jintao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, People's Republic of China.
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