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Dong H, You Y, Wang N, Wang M, Song T, He Y, Zou Y, He Y, Peng T, Mei L. Development of amphipathic derivatives of thymol and carvacrol as potent broad-spectrum antibacterial agents. Eur J Med Chem 2024; 276:116716. [PMID: 39088997 DOI: 10.1016/j.ejmech.2024.116716] [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: 05/20/2024] [Revised: 07/15/2024] [Accepted: 07/24/2024] [Indexed: 08/03/2024]
Abstract
In the current study, to discover novel antibacterial agents, we designed and synthesized 72 carvacrol and thymol derivatives by biomimicking the structure and function of cationic antimicrobial peptides (AMPs). Many of the derivatives showed good antibacterial activity, and compound thy2I exhibited the most potent antibacterial activity with minimum inhibitory concentration (MIC) values ranging from 0.5 μg/mL to 8 μg/mL. Compound thy2I could kill both gram-positive and gram-negative bacteria via a membrane-targeting mechanism of action with a low frequency of resistance. In addition, thy2I had the advantages of good membrane selectivity, low toxicity in vitro and in vivo, and good plasma stability. The in vivo activity results revealed that thy2I exhibited a positive therapeutic effect in a mouse skin abscess model induced by Staphylococcus aureus ATCC29213. After thy2I treatment (10 mg/kg), the bacterial load of the S. aureus-infected abscesses was reduced by approximately 99.65 %. Our study suggests that thy2I may serve as an antibacterial lead for further clinical evaluation.
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Affiliation(s)
- Hongbo Dong
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Yuanwei You
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Na Wang
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Mengqi Wang
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Tao Song
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Yani He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Yuhui Zou
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Yujiao He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Ting Peng
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China
| | - Ling Mei
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China.
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Li XM, Gao Y, Wang SH, Huang YG, Long GQ, Wang DD, Zhang R, Wang AH, Huang SH, Jia JM. Natural Prenylflavonoids from Sophora flavescens Root Bark against Multidrug-Resistant Methicillin-Sensitive Staphylococcus aureus Targeting the Membrane Permeability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14684-14700. [PMID: 38905352 DOI: 10.1021/acs.jafc.4c01430] [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: 06/23/2024]
Abstract
The overuse of antibiotics in animal farming and aquaculture has led to multidrug-resistant methicillin-sensitive Staphylococcus aureus (MR-MSSA) becoming a common pathogen in foodborne diseases. Sophora flavescens Ait. serves as a traditional plant antibacterial agent and functional food ingredient. A total of 30 compounds (1-30) were isolated from the root bark of S. flavescens, consisting of 20 new compounds (1-20). In the biological activity assay, compound 1 demonstrated a remarkable inhibitory effect on MR-MSSA, with an MIC of 2 μg/mL. Furthermore, 1 was found to rapidly eliminate bacteria, inhibit biofilm growth, and exhibit exceptionally low cytotoxicity. Mechanistic studies have revealed that 1 possesses an enhanced membrane-targeting ability, binding to the bacterial cell membrane components phosphatidylglycerol (PG), phosphatidylethanolamine (PE), and cardiolipin (CL). This disruption of bacterial cell membrane integrity increases intracellular reactive oxygen species, protein and DNA leakage, reduced bacterial metabolism, and ultimately bacterial death. In summary, these findings suggest that compound 1 holds promise as a lead compound against MR-MSSA.
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Affiliation(s)
- Xin-Min Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Yun Gao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Si-Han Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Yao-Guang Huang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Guo-Qing Long
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Dong-Dong Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Rui Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - An-Hua Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Shao-Hui Huang
- Department of Head and Neck Surgery, Stomatological Hospital of China Medical University, Shenyang 110002, People's Republic of China
| | - Jing-Ming Jia
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
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Dong H, Che Y, Zhu X, Zhong Y, Lin J, Wang J, Du W, Song T. Total Syntheses and Antibacterial Studies of Natural Isoflavones: Scandenone, Osajin, and 6,8-Diprenylgenistein. Molecules 2024; 29:2574. [PMID: 38893450 PMCID: PMC11173660 DOI: 10.3390/molecules29112574] [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: 05/11/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Isoflavones are a class of natural products that exhibit a wide range of interesting biological properties, including antioxidant, hepatoprotective, antimicrobial, and anti-inflammatory activities. Scandenone (1), osajin (2), and 6,8-diprenylgenistein (3) are natural prenylated isoflavones that share the same polyphenol framework. In this research, the key intermediate 15 was used for the synthesis of the natural isoflavones 1-3, establishing a stereoselective synthetic method for both linear and angular pyran isoflavones. The antibacterial activities of 1-3 were also evaluated, and all of them displayed good antibacterial activity against Gram-positive bacteria. Among them, 2 was the most potent one against MRSA, with a MIC value of 2 μg/mL, and the SEM assay indicated that the bacterial cell membranes of both MRSA and E. faecalis could be disrupted by 2. These findings suggest that this type of isoflavone could serve as a lead for the development of novel antibacterial agents for the treatment of Gram-positive bacterial infections.
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Affiliation(s)
- Hongbo Dong
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Yufei Che
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Xingtong Zhu
- School of Food Science and Biological Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Zhong
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Jiafu Lin
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Jian Wang
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Weihong Du
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Tao Song
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
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Berida TI, Adekunle YA, Dada-Adegbola H, Kdimy A, Roy S, Sarker SD. Plant antibacterials: The challenges and opportunities. Heliyon 2024; 10:e31145. [PMID: 38803958 PMCID: PMC11128932 DOI: 10.1016/j.heliyon.2024.e31145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024] Open
Abstract
Nature possesses an inexhaustible reservoir of agents that could serve as alternatives to combat the growing threat of antimicrobial resistance (AMR). While some of the most effective drugs for treating bacterial infections originate from natural sources, they have predominantly been derived from fungal and bacterial species. However, a substantial body of literature is available on the promising antibacterial properties of plant-derived compounds. In this comprehensive review, we address the major challenges associated with the discovery and development of plant-derived antimicrobial compounds, which have acted as obstacles preventing their clinical use. These challenges encompass limited sourcing, the risk of agent rediscovery, suboptimal drug metabolism, and pharmacokinetics (DMPK) properties, as well as a lack of knowledge regarding molecular targets and mechanisms of action, among other pertinent issues. Our review underscores the significance of these challenges and their implications in the quest for the discovery and development of effective plant-derived antimicrobial agents. Through a critical examination of the current state of research, we give valuable insights that will advance our understanding of these classes of compounds, offering potential solutions to the global crisis of AMR. © 2017 Elsevier Inc. All rights reserved.
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Affiliation(s)
- Tomayo I. Berida
- Department of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, MS, 38677, USA
| | - Yemi A. Adekunle
- Department of Pharmaceutical and Medicinal Chemistry, College of Pharmacy, Afe Babalola University, Ado-Ekiti, Nigeria
- Centre for Natural Products Discovery (CNPD), School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Hannah Dada-Adegbola
- Department of Medical Microbiology and Parasitology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ayoub Kdimy
- LS3MN2E, CERNE2D, Faculty of Science, Mohammed V University in Rabat, Rabat, 10056, Morocco
| | - Sudeshna Roy
- Department of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, MS, 38677, USA
| | - Satyajit D. Sarker
- Centre for Natural Products Discovery (CNPD), School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool, L3 3AF, United Kingdom
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Dong H, Liao L, Long B, Che Y, Peng T, He Y, Mei L, Xu B. Total Synthesis and Antibacterial Evaluation of Lupinifolin and Its Natural Analogues. JOURNAL OF NATURAL PRODUCTS 2024; 87:1044-1058. [PMID: 38373268 DOI: 10.1021/acs.jnatprod.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
In this study, lupinifolin (1) and its natural analogues, mundulin (2), minimiorin (3), khonklonginol H (4), flemichin D (5), and eriosemaone A (27), were obtained by chemical synthesis for the first time. Key steps involved an electrocyclization to build the linear pyran rings and a Claisen/Cope rearrangement to install the 8-prenyl substituents. All compounds were assessed for their in vitro antimicrobial activities against clinically relevant human pathogens, including one Gram-negative bacterial strain (E. coli ATCC 25922) and four Gram-positive bacterial strains (S. aureus ATCC 29213, E. faecalis ATCC 29212, MRSA21-5, and VRE ATCC 51299). The result indicated that eriosemaone A (27) was the most potent one against Gram-positive bacteria, with minimum inhibitory concentrations in the range of 0.25-0.5 μg/mL. Mechanistic studies indicated that 27 has good membrane-targeting ability to bacterial inner membranes and can bind to phosphatidylglycerol and cardiolipin in bacterial membranes, thereby disrupting the bacterial cell membranes and causing bacterial death.
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Affiliation(s)
- Hongbo Dong
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Li Liao
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yufei Che
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ting Peng
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yujiao He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ling Mei
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
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Wang Y, Ai Q, Gu M, Guan H, Yang W, Zhang M, Mao J, Lin Z, Liu Q, Liu J. Comprehensive overview of different medicinal parts from Morus alba L.: chemical compositions and pharmacological activities. Front Pharmacol 2024; 15:1364948. [PMID: 38694910 PMCID: PMC11061381 DOI: 10.3389/fphar.2024.1364948] [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: 01/19/2024] [Accepted: 03/25/2024] [Indexed: 05/04/2024] Open
Abstract
Morus alba L., a common traditional Chinese medicine (TCM) with a centuries-old medicinal history, owned various medicinal parts like Mori folium, Mori ramulus, Mori cortex and Mori fructus. Different medical parts exhibit distinct modern pharmacological effects. Mori folium exhibited analgesic, anti-inflammatory, hypoglycemic action and lipid-regulation effects. Mori ramulus owned anti-bacterial, anti-asthmatic and diuretic activities. Mori cortex showed counteraction action of pain, inflammatory, bacterial, and platelet aggregation. Mori fructus could decompose fat, lower blood lipids and prevent vascular sclerosis. The main chemical components in Morus alba L. covered flavonoids, phenolic compounds, alkaloids, and amino acids. This article comprehensively analyzed the recent literature related to chemical components and pharmacological actions of M. alba L., summarizing 198 of ingredients and described the modern activities of different extracts and the bioactive constituents in the four parts from M. alba L. These results fully demonstrated the medicinal value of M. alba L., provided valuable references for further comprehensive development, and layed the foundation for the utilization of M. alba L.
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Affiliation(s)
- Yumei Wang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Qing Ai
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Meiling Gu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Hong Guan
- Office of Academic Research, Qiqihar Medical University, Qiqihar, China
| | - Wenqin Yang
- Office of Academic Research, Qiqihar Medical University, Qiqihar, China
| | - Meng Zhang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Jialin Mao
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Zhao Lin
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Jicheng Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
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