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Lin S, Chen Y, Sun Y, Yu G, Liao X, Yang Q. Evaluation of multi-target iridium(iii)-based metallodrugs in combating antimicrobial resistance and infections caused by Staphylococcus aureus. RSC Adv 2024; 14:16194-16206. [PMID: 38769952 PMCID: PMC11103350 DOI: 10.1039/d4ra02152e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/28/2024] [Indexed: 05/22/2024] Open
Abstract
The rapid emergence and spread of multidrug-resistant bacteria pose a serious challenge to human life and health, necessitating the development of novel antibacterial agents. Herein, to address this challenge, three iridium-based antibacterial agents were prepared and their antimicrobial activity were explored. Importantly, the three complexes all showed robust potency against S. aureus with MIC values in the range of 1.9-7.9 μg mL-1. Notably, the most active complex Ir3 also exhibited relative stability in mammalian fluids and a significant antibacterial effect on clinically isolated drug-resistant bacteria. Mechanism studies further demonstrated that the complex Ir3 can kill S. aureus by disrupting the integrity of the bacterial membrane and inducing ROS production. This multi-target advantage allows Ir3 to not only effectively combat bacterial resistance but also efficiently clear the bacterial biofilm. In addition, when used together, complex Ir3 could enhance the antibacterial potency of some clinical antibiotics against S. aureus. Moreover, both G. mellonella wax worms and mouse infection model demonstrated that Ir3 has low toxicity and robust anti-infective efficacy in vivo. Overall, complex Ir3 can serve as a new antibacterial agent for combating Gram-positive bacterial infections.
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Affiliation(s)
- Shijie Lin
- Department of Pharmacy, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University) Haikou 570311 China
| | - Yushou Chen
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang 330013 China
| | - Yajuan Sun
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang 330013 China
| | - Guangying Yu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang 330013 China
| | - Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science&Technology Normal University Nanchang 330013 China
| | - Qiang Yang
- Department of Clinical Pharmacy, Hainan Cancer Hospital Haikou 570100 China
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Yang Y, Yu Z, Ba Z, Ouyang X, Li B, Yang P, Zhang J, Wang Y, Liu Y, Yang T, Zhao Y, Wu X, Zhong C, Liu H, Zhang Y, Gou S, Ni J. Arginine and tryptophan-rich dendritic antimicrobial peptides that disrupt membranes for bacterial infection in vivo. Eur J Med Chem 2024; 271:116451. [PMID: 38691892 DOI: 10.1016/j.ejmech.2024.116451] [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: 03/19/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
The potent antibacterial activity and low resistance of antimicrobial peptides (AMPs) render them potential candidates for treating multidrug-resistant bacterial infections. Herein, a minimalist design strategy was proposed employing the "golden partner" combination of arginine (R) and tryptophan (W), along with a dendritic structure to design AMPs. By extension, the α/ε-amino group and the carboxyl group of lysine (K) were utilized to link R and W, forming dendritic peptide templates αRn(εRn)KWm-NH2 and αWn(εWn)KRm-NH2, respectively. The corresponding linear peptide templates R2nKWm-NH2 and W2nKRm-NH2 were used as controls. Their physicochemical properties, activity, toxicity, and stability were compared. Among these new peptides, the dendritic peptide R2(R2)KW4 was screened as a prospective candidate owing to its preferable antibacterial properties, biocompatibility, and stability. Additionally, R2(R2)KW4 not only effectively restrained the progression of antibiotic resistance, but also demonstrated synergistic utility when combined with conventional antibiotics due to its unique membrane-disruptive mechanism. Furthermore, R2(R2)KW4 possessed low toxicity (LD50 = 109.31 mg/kg) in vivo, while efficiently clearing E. coli in pulmonary-infected mice. In conclusion, R2(R2)KW4 has the potential to become an antimicrobial regent or adjuvant, and the minimalist design strategy of dendritic peptides provides innovative and encouraging thoughts in designing AMPs.
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Affiliation(s)
- Yinyin Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zhongwei Yu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zufang Ba
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xu Ouyang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Beibei Li
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Ping Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jingying Zhang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yu Wang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yao Liu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Tingting Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yuhuan Zhao
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaoyan Wu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Chao Zhong
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China; Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing, 100050, P. R. China
| | - Hui Liu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China; Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing, 100050, P. R. China
| | - Yun Zhang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China; Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing, 100050, P. R. China
| | - Sanhu Gou
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China; Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing, 100050, P. R. China.
| | - Jingman Ni
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, P. R. China; Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing, 100050, P. R. China.
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Yuan X, Zhou Y, Wang Y, Liu L, Yang G. Fabrication of Schiff-base crosslinked films modified dialdehyde starch with excellent UV-blocking and antibacterial properties for fruit preservation. Carbohydr Polym 2024; 326:121619. [PMID: 38142076 DOI: 10.1016/j.carbpol.2023.121619] [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] [Received: 09/15/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/25/2023]
Abstract
Starch-based films have received considerable attention, owing to their commendable biocompatible and biodegradable properties; however, their poor ultraviolet (UV)-blocking and antibacterial performances limit their application in fruit preservation. Herein, bio-based bifunctional benzoxazine (Bi-BOZ) compounds with different carbon chain lengths were synthesized, and the influence of chain lengths on the antibacterial effect was explored. Benzoxazine with 1,12-dodecanediamine as the amine source (BOZ-DDA) exhibited excellent antibacterial and antibiofilm activities, with minimum inhibitory concentrations of 21.7 ± 2.2 and 23.3 ± 2.6 μg/mL against Escherichia coli and Staphylococcus aureus, respectively, mainly because the electrostatic attraction and hydrophobic effect of BOZ-DDA, effectively disrupted the bacterial integrity. DS/DDA films with hydrophobic, antibacterial, and UV-resistant abilities were prepared by the Schiff-base reaction between BOZ-DDA and dialdehyde starch (DS). The interactions between the films increased with BOZ-DDA content, enhanced mechanical and barrier properties. DS/DDA films exhibited acid-responsive antibacterial activity attributed to the acid hydrolysis of Schiff bases, released of BOZ-DDA from the films, and the protonation of BOZ-DDA. DS/DDA films exhibited commendable antibacterial and anti-ultraviolet characteristics compared to commercially available films, allowing them to prevent the degradation of mangoes and grapes. As sustainable antibacterial materials, the multifunctional DS/DDA films manifest promising prospects in fruit preservation packaging applications.
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Affiliation(s)
- Xuan Yuan
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Institute of Advanced Marine Materials, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yijia Zhou
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Institute of Advanced Marine Materials, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yudan Wang
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Institute of Advanced Marine Materials, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Lijia Liu
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Institute of Advanced Marine Materials, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Yantai Research Institute of Harbin Engineering University, Yantai 264006, China
| | - Guoxing Yang
- Daqing Petrochemical Research Center, Petrochemical Research Institute, PetroChina Corporation, Daqing 163000, China.
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Wang Z, Yuan X, Zhu Z, Pang L, Ding S, Li X, Kang Y, Hei G, Zhang L, Zhang X, Wang S, Jian X, Li Z, Zheng C, Fan X, Hu S, Shi Y, Song X. Multiomics Analyses Reveal Microbiome-Gut-Brain Crosstalk Centered on Aberrant Gamma-Aminobutyric Acid and Tryptophan Metabolism in Drug-Naïve Patients with First-Episode Schizophrenia. Schizophr Bull 2024; 50:187-198. [PMID: 37119525 PMCID: PMC10754168 DOI: 10.1093/schbul/sbad026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
BACKGROUND AND HYPOTHESIS Schizophrenia (SCZ) is associated with complex crosstalk between the gut microbiota and host metabolism, but the underlying mechanism remains elusive. Investigating the aberrant neurotransmitter processes reflected by alterations identified using multiomics analysis is valuable to fully explain the pathogenesis of SCZ. STUDY DESIGN We conducted an integrative analysis of multiomics data, including the serum metabolome, fecal metagenome, single nucleotide polymorphism data, and neuroimaging data obtained from a cohort of 127 drug-naïve, first-episode SCZ patients and 92 healthy controls to characterize the microbiome-gut-brain axis in SCZ patients. We used pathway-based polygenic risk score (PRS) analyses to determine the biological pathways contributing to genetic risk and mediation effect analyses to determine the important neuroimaging features. Additionally, a random forest model was generated for effective SCZ diagnosis. STUDY RESULTS We found that the altered metabolome and dysregulated microbiome were associated with neuroactive metabolites, including gamma-aminobutyric acid (GABA), tryptophan, and short-chain fatty acids. Further structural and functional magnetic resonance imaging analyses highlighted that gray matter volume and functional connectivity disturbances mediate the relationships between Ruminococcus_torgues and Collinsella_aerofaciens and symptom severity and the relationships between species Lactobacillus_ruminis and differential metabolites l-2,4-diaminobutyric acid and N-acetylserotonin and cognitive function. Moreover, analyses of the Polygenic Risk Score (PRS) support that alterations in GABA and tryptophan neurotransmitter pathways are associated with SCZ risk, and GABA might be a more dominant contributor. CONCLUSIONS This study provides new insights into systematic relationships among genes, metabolism, and the gut microbiota that affect brain functional connectivity, thereby affecting SCZ pathogenesis.
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Affiliation(s)
- Zhuo Wang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Xiuxia Yuan
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Zijia Zhu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Lijuan Pang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Shizhi Ding
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Xue Li
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Yulin Kang
- Institute of Environmental Information, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Gangrui Hei
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Liyuan Zhang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Xiaoyun Zhang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Shuying Wang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
| | - Xuemin Jian
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiqiang Li
- The Affiliated Hospital of Qingdao University and the Biomedical Sciences Institute of Qingdao University, Qingdao Branch of SJTU Bio-X Institutes, Qingdao University, Qingdao, China
| | - Chenxiang Zheng
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoduo Fan
- Psychotic Disorders Program, UMass Memorial Medical Center, University of Massachusetts Medical School, Worcester, MA, USA
| | - Shaohua Hu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yongyong Shi
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University; Collaborative Innovation Centre for Brain Science, Shanghai Jiao Tong University, Shanghai, China
- The Affiliated Hospital of Qingdao University and the Biomedical Sciences Institute of Qingdao University, Qingdao Branch of SJTU Bio-X Institutes, Qingdao University, Qingdao, China
| | - Xueqin Song
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University; Henan International Joint Laboratory of Biological Psychiatry; Henan Psychiatric Transformation Research Key Laboratory/Zhengzhou University, Zhengzhou, China
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Tang Y, Yu P, Chen L. Identification of Antibacterial Components and Modes in the Methanol-Phase Extract from a Herbal Plant Potentilla kleiniana Wight et Arn. Foods 2023; 12:foods12081640. [PMID: 37107435 PMCID: PMC10137656 DOI: 10.3390/foods12081640] [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: 03/17/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
The increase in bacterial resistance and the decline in the effectiveness of antimicrobial agents are challenging issues for the control of infectious diseases. Traditional Chinese herbal plants are potential sources of new or alternative medicine. Here, we identified antimicrobial components and action modes of the methanol-phase extract from an edible herb Potentilla kleiniana Wight et Arn, which had a 68.18% inhibition rate against 22 species of common pathogenic bacteria. The extract was purified using preparative high-performance liquid chromatography (Prep-HPLC), and three separated fragments (Fragments 1-3) were obtained. Fragment 1 significantly elevated cell surface hydrophobicity and membrane permeability but reduced membrane fluidity, disrupting the cell integrity of the Gram-negative and Gram-positive pathogens tested (p < 0.05). Sixty-six compounds in Fragment 1 were identified using Ultra-HPLC and mass spectrometry (UHPLC-MS). The identified oxymorphone (6.29%) and rutin (6.29%) were predominant in Fragment 1. Multiple cellular metabolic pathways were altered by Fragment 1, such as the repressed ABC transporters, protein translation, and energy supply in two representative Gram-negative and Gram-positive strains (p < 0.05). Overall, this study demonstrates that Fragment 1 from P. kleiniana Wight et Arn is a promising candidate for antibacterial medicine and food preservatives.
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Affiliation(s)
- Yingping Tang
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Shanghai 201306, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Pan Yu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Shanghai 201306, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Shanghai 201306, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
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Song X, He S, Zheng J, Yang S, Li Q, Zhang Y. One-Step Construction of Tryptophan-Derived Small Molecule Hydrogels for Antibacterial Materials. Molecules 2023; 28:molecules28083334. [PMID: 37110568 PMCID: PMC10141015 DOI: 10.3390/molecules28083334] [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: 03/13/2023] [Revised: 03/27/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Amino acid-based hydrogels have received widespread attention because of their wide range of sources, biodegradability, and biocompatibility. Despite considerable progress, the development of such hydrogels has been limited by critical problems such as bacterial infection and complex preparation. Herein, by using the non-toxic gluconolactone (GDL) to adjust the pH of the solution to induce the rapid self-assembly of N-[(benzyloxy)carbonyl]-L-tryptophan (ZW) to form a three-dimensional (3D) gel network, we developed a stable and effective self-assembled small-molecule hydrogel. Characterization assays and molecular dynamics studies indicate that π-π stacking and hydrogen bonding are the main drivers of self-assembly between ZW molecules. In vitro experiments further confirmed this material's sustained release properties, low cytotoxicity, and excellent antibacterial activity, particularly against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. This study provides a different and innovative perspective for the further development of antibacterial materials based on amino acid derivatives.
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Affiliation(s)
- Xianwen Song
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Shunmei He
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jun Zheng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Shutong Yang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Qiang Li
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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