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Zheng Z, Sun C, Zhong Y, Shi Y, Zhuang L, Liu B, Liu Z. Fraxini cortex: Progresses in phytochemistry, pharmacology and ethnomedicinal uses. JOURNAL OF ETHNOPHARMACOLOGY 2024; 325:117849. [PMID: 38301981 DOI: 10.1016/j.jep.2024.117849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/03/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fraxini cortex, which has been widely used as a traditional Chinese medicine for 2000 years, is made from the dried bark of four plant species: Fraxinus chinensis subsp. rhynchophylla (Hance) A.E.Murray, Fraxinus chinensis Roxb., Fraxinus chinensis subsp. chinensis and Fraxinus stylosa Lingelsh.. In Chinese traditional medicine, it possesses the properties of heat-clearing and dampness-drying, asthma relief and cough suppression, as well as vision improvement. It is utilized for treating bacterial disorders, enteritis, leukorrhea, chronic bronitis, painful red eyes with swelling, lacrimation due to windward exposure, psoriasis, and other diseases or related symptoms. AIM OF THE STUDY Fraxini cortex is abundant in chemical constituents and has garnered significant attention from plant chemists, particularly regarding coumarins, as evidenced by the recently identified three coumarin compounds. Considering the current dearth of systematic reporting on studies pertaining to Fraxini cortex, herein we provide a comprehensive summary of the advancements in phytochemistry, pharmacology, detection methods, and ethnomedicinal applications of Fraxini cortex. MATERIALS AND METHODS We conducted a comprehensive search across online data sources (Web of Science, Public Medicine (PubMed), China National Knowledge Infrastructure (CNKI), as well as Chinese dissertations) and traditional Chinese medicine classics to gather the necessary literature resources for this review. RESULTS Briefly, The Fraxini cortex yielded a total of 132 phytochemicals, including coumarins, lignans, secoiridoids, phenylethanol glycosides, flavonoids, triterpenoids, and other compounds. Among them, the main active ingredients are coumarins which possess a diverse range of pharmacological activities such as anti-inflammatory effects, anti-tumor properties, prevention of tissue fibrosis and oxidation damage as well as cardioprotective effects. CONCLUSIONS All types of research conducted on Fraxini cortex, particularly in the field of ethnopharmacology, phytochemistry, and pharmacology, have been thoroughly reviewed. However, certain traditional applications and pharmacological activities of Fraxini cortex lack scientific evaluation or convincing evidence due to incomplete methodologies and ambiguous results, as well as a lack of clinical data. To validate its pharmacological activity, clinical efficacy, and safety profile, a systematic and comprehensive research evaluation is imperative. As an important traditional Chinese medicine, Fraxini cortex should be further explored to facilitate the development of novel drugs and therapeutics for various diseases. Greater attention should be given to how it can be better utilized.
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Affiliation(s)
- Zuoliang Zheng
- School of Life Science, Jiaying University, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, China.
| | - Chaoyue Sun
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, China.
| | - Yuping Zhong
- School of Life Science, Jiaying University, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, China.
| | - Yufei Shi
- School of Life Science, Jiaying University, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, China.
| | - Likai Zhuang
- School of Life Science, Jiaying University, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, China.
| | - Bo Liu
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Zhiwei Liu
- School of Life Science, Jiaying University, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, China.
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Dong J, Zhang Y, Yang Q, Liu Y, Zhou S, Ai X. Fraxetin Targeting to Sortase A Decreases the Pathogenicity of Streptococcus agalactiae to Nile Tilapia. Animals (Basel) 2024; 14:1337. [PMID: 38731341 PMCID: PMC11083127 DOI: 10.3390/ani14091337] [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: 03/26/2024] [Revised: 04/09/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
Sortase A (SrtA) is responsible for anchoring surface proteins to the cell wall, and has been identified as a promising target developing anti-infective drugs of Gram-positive bacteria. The aim of the study was to identify inhibitors of Streptococcus agalactiae (S. agalactiae) SrtA from natural compounds to overcome the spread of antibiotic resistance in aquaculture. Here, we found that the MIC of fraxetin against S. agalactiae was higher than 256 μg/mL, indicating that fraxetin had no anti- S. agalactiae activity. But fraxetin could dose-dependently decrease the activity of SrtA in vitro at concentrations ranging between 4-32 μg/mL by a fluorescence resonance energy transfer (FRET) assay. Moreover, the inhibition of SrtA by fraxetin decreased the anchoring of surface proteins with the LPXTG motif to the cell wall by detecting the immunofluorescence change of serine-rich repeat protein 1 (Srr1) on the bacterial cell surface. The results of fibronectin binding and cell adhesion assays indicated that fraxetin could significantly decrease the adhesion ability of S. agalactiae in a dose-dependent manner. The results were further proven by immunofluorescence staining. Animal challenge results showed that treatment with fraxetin could reduce the mortality of tilapia infected with S. agalactiae to 46.67%, indicating that fraxetin could provide a significant amount of protection to tilapia by inactivating SrtA. Taken together, these findings provided a novel inhibitor of S. agalactiae SrtA and a promising candidate for treating S. agalactiae infections in aquaculture.
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Affiliation(s)
- Jing Dong
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Yuze Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
- College of Food Science and Engineering, Bohai University, Jinzhou 121010, China
| | - Qiuhong Yang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Yongtao Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Shun Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Xiaohui Ai
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
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Ha NM, Son NT. Health benefits of fraxetin: From chemistry to medicine. Arch Pharm (Weinheim) 2024:e2400092. [PMID: 38501886 DOI: 10.1002/ardp.202400092] [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: 02/01/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/20/2024]
Abstract
Fraxetin is a bioactive molecule present in various natural plants, especially Cortex Fraxini. Evidenced outcomes in phytochemical and biological analyses for this agent are now available in the literature, but an insightful review is yet unknown. The goal of the current research is to offer a panoramic illustration of natural observation, biosynthesis, synthesis, pharmacology, and pharmacokinetics for fraxetin. Esculetin and ferulic acid acted as precursors in the enzymatic biosynthetic route, whereas fraxetin could be easily synthesized from simple phenols. A great deal of interest was obtained in using this molecule for pharmacological targets. Herein, its pharmacological value included anticancer, antioxidative, anti-inflammatory, antidiabetic, antiobesity, and antimicrobial activities, as well as the protection of the liver, neurons, heart, bone, lung, kidney, and others. Anticancer activity may involve the inhibition of proliferation, invasion, and migration, together with apoptotic induction. Health benefits from this molecule were deduced from its ability to suppress cytokines and protect the immune syndrome. Various signaling pathways, such as Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3), phosphoinositide 3 kinase (PI3K)/protein kinase B (Akt), nuclear factor kappa B (NF-κB)/NLRP3, Akt/AMPK, have been proposed for in vitro and in vivo mechanisms of action. Fraxetin is highly distributed to rat plasma and several organs. However, more pharmacokinetic studies to improve its bioavailability are needed since its solubility in water is still limited.
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Affiliation(s)
- Nguyen Manh Ha
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, VAST, Hanoi, Vietnam
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Weng M, Deng Z, Huang S, Lin X, Xu N, Sun X, Wu W, Lu J, Wang D. Fraxetin inhibits proliferation and induces apoptosis of bladder cancer through the Akt pathway in vitro and in vivo. J Biochem Mol Toxicol 2024; 38:e23556. [PMID: 37867445 DOI: 10.1002/jbt.23556] [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: 05/18/2022] [Revised: 09/04/2023] [Accepted: 10/02/2023] [Indexed: 10/24/2023]
Abstract
Fraxetin, a natural compound extracted from the Chinese herb Cortex Fraxini, is reported to boast extensive antitumor properties in various cancers. However, whether fraxetin exhibited an anticancer effect on bladder cancer remains unknown. In this study, cell counting kit-8 was utilized to detect cell viability. Flow cytometry analysis was performed for cell apoptosis analysis. Western blot analysis and real-time PCR were used to ascertain gene expression analysis. A mouse bladder cancer xenograft model was established and subjected to fraxetin treatment. Fraxetin reduced the viability of bladder cancer cells, induced apoptosis in vitro, and inhibited the growth of bladder cancer in vivo. Fraxetin inhibited the Akt pathway in J82 cells. In conclusion, the growth inhibitory properties of fraxetin against bladder cancer may be mediated via an Akt inhibitory effect and cell apoptosis promotion.
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Affiliation(s)
- Mingfang Weng
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
| | - Zhen Deng
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
| | - Shuijing Huang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiaowen Lin
- Department of Vascular Surgery, Fujian Provincial People's Hospital, Fuzhou, China
| | - Na Xu
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
| | - Xinghui Sun
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
| | - Weizhen Wu
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
| | - Jun Lu
- Fujian Provincial Key Laboratory of Transplant Biology, Dongfang Hospital (900TH Hospital of Joint Logistics Support Force), Xiamen University, Fuzhou, China
| | - Dong Wang
- Department of Urology, 900TH Hospital of Joint Logistics Support Force, Fujian Medical University, Fuzhou, China
- Fujian Provincial Key Laboratory of Transplant Biology, Dongfang Hospital (900TH Hospital of Joint Logistics Support Force), Xiamen University, Fuzhou, China
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Bonomo MG, Russo D, Faraone I, Milella L, Mang SM, Saturnino C, Sinicropi MS, Catalano A, Salzano G. Antimicrobial and antioxidant properties and quantitative screening of phytochemicals of Fraxinus excelsior L. and Eschscholtzia californica Cham. mother tinctures. Nat Prod Res 2023; 37:3033-3041. [PMID: 36355050 DOI: 10.1080/14786419.2022.2144849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/19/2022] [Accepted: 11/03/2022] [Indexed: 11/12/2022]
Abstract
The antioxidant and antimicrobial activities of Fraxinus excelsior L. and Eschscholtzia californica Cham. mother tinctures against a range of foodborne bacteria were investigated to determine the major components and to analyse the action spectrum and antimicrobial effectiveness of the extracts. Results demonstrated a significant antioxidant activity of Fraxinus excelsior L. and a lower activity of Eschscholtzia californica Cham. and a good chemical phenolic composition with the highest content of flavonoids. The Fraxinus excelsior L. and Eschscholtzia californica Cham. mother tinctures demonstrated a middle-high antimicrobial activity against, respectively, 66.67% and 43.33% of all tested bacteria. The inhibitory activity showed a moderate effect on the growth of the sensitive strains in presence of extracts minimum inhibitory concentration. The synergistic actions of bioactive compounds detected in the extracts might be on the basis of antioxidant and biological activities observed and should be used in pharmaceutical, food preservation, alternative medicine and natural therapies fields.
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Affiliation(s)
- Maria Grazia Bonomo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Daniela Russo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Immacolata Faraone
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Luigi Milella
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Stefania Mirela Mang
- Scuola di Scienze Agrarie, Forestali, Alimentari e Ambietali (SAFE), Università degli Studi della Basilicata, Potenza, Italy
| | - Carmela Saturnino
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Maria Stefania Sinicropi
- Dipartmento di Farmacia, Salute e scienze della Nutrizione, Università degli Studi della Calabria, Arcavacata di Rende (CS), Italy
| | - Alessia Catalano
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Bari, Italy
| | - Giovanni Salzano
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
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Jiang H, Bai Z, Xu Z, Sun J, Françoise H, Luan Z, Wang H. Antimicrobial mechanism of semi-bionic extracts of three traditional medicinal plants- Rheum palmatum L., Scutellaria baicalensis Georgi, and Houttuynia cordata Thunb-That can be used as antibiotic alternatives. Front Vet Sci 2023; 9:1083223. [PMID: 36713859 PMCID: PMC9880254 DOI: 10.3389/fvets.2022.1083223] [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: 10/28/2022] [Accepted: 12/12/2022] [Indexed: 01/14/2023] Open
Abstract
The Chinese traditional medicinal plants Rheum palmatum L., Scutellaria baicalensis Georgi, and Houttuynia cordata Thunb in a ratio of 108:65:27 form a compound named Dahuang Qinyu San (DQS), which inhibits and kills Escherichia coli and Salmonella to a certain extent in fish and shrimp aquaculture environments. The active ingredients quercetin, emodin, baicalin, and aloe-emodin are obtained from the semi-biomimetic extract of DQS (SEDQS). However, the antibacterial mechanism of SEDQS against Salmonella is still unclear. This study used the microwell-plate method to determine the Minimum Inhibitory Concentration (MIC) of SEDQS against Salmonella enteritidis (S. enteritidis) isolated from geese. In addition, the effect of SEDQS on the growth curve, respiratory metabolic system, cell wall, soluble protein, and nucleic acid in bacterial liquid of S. enteritidis was detected by spectrophotometer and reagent kit. The effects of SEDQS on S. enteritidis DNA, binding gel blocking, virulence gene expression, and pathogenicity-related proteins were determined by gel electrophoresis, SDS-PAGE, and fluorescence quantitative PCR. The study found that a concentration of 1/4 MIC-2 MIC (2.27-18.2 mg/ml) SEDQS can significantly inhibit the normal growth of S. enteritidis, destroy the cell membrane structure of bacteria resulting in the leak of nucleic acid, protein, and other contents (P < 0.01). It also significantly inhibited the activities of succinate dehydrogenase (SDH) and malate dehydrogenase (MDH; P < 0.01) in a concentration-dependent manner. When the concentration of SEDQS was 1/2 MIC to 2 MIC (4.55-18.2 mg/ml), the expression levels of gyrB, fimA, filC, spvR, Hcp, and vgrG virulence genes (P < 0.01) all decreased by more than 31, 11, 18, 30, 34, and 21% respectively compared with the control group. SEDQS could significantly inhibit the expression of six virulence genes and play an important role in the pathogenicity of the S. enteritidis infected host. The SEDQS could exert antibacterial pharmacological effects by inhibiting the growth and metabolism of S. enteritidis and inhibiting the expression of major virulence factors. It has potential application value as an antibiotic alternative.
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Affiliation(s)
- Hong Jiang
- Institute of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Zixia Bai
- Department of Pharmacy, Tianjin Baodi Hospital, Baodi Clinical College, Tianjin Medical University, Tianjin, China
| | - Ziheng Xu
- School of Public Health and Management, Guang University of Chinese Medical, Nanning, Guangxi, China,*Correspondence: Ziheng Xu ✉
| | - Jian Sun
- Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College Agriculture, Beijing, China
| | - Hatungimana Françoise
- College of International Education, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Zuxiang Luan
- Employment Department, Nanning Normal University, Nanning, Guangxi, China
| | - Hongjun Wang
- Institute of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, Liaoning, China,Hongjun Wang ✉
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Fraxetin Interacts Additively with Cisplatin and Mitoxantrone, Antagonistically with Docetaxel in Various Human Melanoma Cell Lines-An Isobolographic Analysis. Int J Mol Sci 2022; 24:ijms24010212. [PMID: 36613654 PMCID: PMC9820609 DOI: 10.3390/ijms24010212] [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: 10/24/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
Malignant melanoma is a skin cancer characterized by rapid development, poor prognosis and high mortality. Due to the frequent drug resistance and/or early metastases in melanoma, new therapeutic methods are urgently needed. The study aimed at assessing the cytotoxic and antiproliferative effects of scoparone and fraxetin in vitro, when used alone and in combination with three cytostatics: cisplatin, mitoxantrone, and docetaxel in four human melanoma cell lines. Our experiments showed that scoparone in the concentration range tested up to 200 µM had no significant effect on the viability of human malignant melanoma (therefore, it was not possible to evaluate it in combination with other cytostatics), while fraxetin inhibited cell proliferation with IC50 doses in the range of 32.42-73.16 µM, depending on the cell line. Isobolographic analysis allowed for the assessment of the interactions between the studied compounds. Importantly, fraxetin was not cytotoxic to normal keratinocytes (HaCaT) and melanocytes (HEMa-LP), although it slightly inhibited their viability at high concentrations. The combination of fraxetin with cisplatin and mitoxantrone showed the additive interaction, which seems to be a promising direction in melanoma therapy. Unfortunately, the combination of fraxetin with docetaxel may not be beneficial due to the antagonistic antiproliferative effect of both drugs used in the mixture.
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Inhibition of the Type III Secretion System of Salmonella enterica Serovar Typhimurium via Treatment with Fraxetin. Microbiol Spectr 2022; 10:e0294922. [PMID: 36377917 PMCID: PMC9769827 DOI: 10.1128/spectrum.02949-22] [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] [Indexed: 11/16/2022] Open
Abstract
The increasingly serious problem of bacterial drug resistance has led to the development of antivirulence agents. The Salmonella enterica serovar Typhimurium Salmonella pathogenicity island (SPI)-encoded type III secretion system (T3SS) and its effector proteins are important virulence factors for S. Typhimurium invasion and replication in host cells and for antivirulence drug screening. Fraxetin is isolated from Fraxinus spp. Extensive studies have reported its multiple pharmacological activities. However, it remains to be elucidated whether fraxetin affects the function of the S. Typhimurium T3SS. In this study, the anti-infection mechanism of fraxetin on S. Typhimurium and its T3SS was investigated. Fraxetin inhibited the S. Typhimurium invasion of HeLa cells without affecting the growth of bacteria in vitro. Further findings on the mechanism showed that fraxetin had an inhibitory effect on the S. Typhimurium T3SS by inhibiting the transcription of the pathogenesis-related SPI-1 transcriptional activator genes hilD, hilC, and rtsA. Animal experiments showed that fraxetin treatment protected mice against S. Typhimurium infection. Collectively, we provide the first demonstration that fraxetin may serve as an effective T3SS inhibitor for the development of treatments for Salmonella infection. IMPORTANCE The increasingly serious problem of bacterial antibiotic resistance limits the clinical application of antibiotics, which increases the need for the development of antivirulence agents. The type III secretion system (T3SS) plays a critical role in host cell invasion and pathogenesis of Salmonella and becomes a popular target for antivirulence agents screening. Our study found, for the first time, that fraxetin inhibited S. Typhimurium invasion by inhibiting the transcription of genes in a feed-forward regulatory loop. Further in vivo testing showed that fraxetin decreased bacterial burdens in the spleen and liver of S. Typhimurium-infected mice and improved survival outcomes in an in vivo mouse model of S. Typhimurium infection. Collectively, these results demonstrate that fraxetin inhibits S. Typhimurium infection by targeting the T3SS and may serve as a potential agent for the treatment of S. Typhimurium infection.
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Li H, Li C, Shi C, Hu W, Cui H, Lin L. Characterization of controlled-release Eucalyptus citriodora oil/Zinc ions nanoparticles with enhanced antibacterial properties against E. coli O157:H7 in fruit juice. Food Res Int 2022; 162:112138. [DOI: 10.1016/j.foodres.2022.112138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/05/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
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Liang J, Huang X, Ma G. Antimicrobial activities and mechanisms of extract and components of herbs in East Asia. RSC Adv 2022; 12:29197-29213. [PMID: 36320733 PMCID: PMC9554739 DOI: 10.1039/d2ra02389j] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022] Open
Abstract
Antibacterial drugs face increasing challenges due to drug resistance and adverse reactions, which has created a pressing need for the discovery and development of novel antibacterial drugs. Herbs have played an important role in the treatment of infectious diseases. This review aims to summarize, analyze and evaluate the antibacterial activities and mechanisms of components from popular herbs in East Asia. In this review, we have searched and summarized the scientific papers published during the past twenty-year period from electronic databases such as PubMed, ScienceDirect, and Web of Science. These herbs and their components, including alkaloids, flavonoids, essential oils, terpenes, organic acids, coumarins and lignans, display potential antimicrobial effects. Herbal medicine formulas (HMFs) usually show stronger antibacterial activity than single herbs. Herbs and HMFs bring forth antibacterial activities by damaging cell membranes and walls, inhibiting nucleic acid and protein synthesis, and increasing intracellular osmotic pressure. These herbs and their components can be developed as potential and promising novel antibacterial herbal products.
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Affiliation(s)
- Jingru Liang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University826 Zhangheng RoadShanghai 201203China+86-21-5198-0025
| | - Xuan Huang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University826 Zhangheng RoadShanghai 201203China+86-21-5198-0025
| | - Guo Ma
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University826 Zhangheng RoadShanghai 201203China+86-21-5198-0025
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Suppressive Effect of Fraxetin on Adipogenesis and Reactive Oxygen Species Production in 3T3-L1 Cells by Regulating MAPK Signaling Pathways. Antioxidants (Basel) 2022; 11:antiox11101893. [PMID: 36290616 PMCID: PMC9598290 DOI: 10.3390/antiox11101893] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/18/2022] Open
Abstract
Recent studies have identified obesity as one of the world’s most serious chronic disorders. Adipogenesis, in which preadipocytes are differentiated into mature adipocytes, has a decisive role in establishing the number of adipocytes and determining the lipid storage capacity of adipose tissue and fat mass in adults. Fat accumulation in obesity is implicated with elevated oxidative stress in adipocytes induced by reactive oxygen species (ROS). Adipogenesis regulation by inhibiting adipogenic differentiation and ROS production has been selected as the strategy to treat obesity. The conventional anti-obesity drugs allowed by the U.S. Food and Drug Administration have severe adverse effects. Therefore, various natural products have been developed as a solution for obesity, suppressing adipogenic differentiation. Fraxetin is a major component extracted from the stem barks of Fraxinus rhynchophylla, with various bioactivities, including anti-inflammatory, anticancer, antioxidant, and antibacterial functions. However, the effect of fraxetin on adipogenesis is still not clearly understood. We studied the pharmacological functions of fraxetin in suppressing lipid accumulation and its underlying molecular mechanisms involving 3T3-L1 preadipocytes. Moreover, increased ROS production induced by a mixture of insulin, dexamethasone, and 3-isobutylmethylxanthine (MDI) in 3T3-L1 was attenuated by fraxetin during adipogenesis. These effects were regulated by mitogen-activated protein kinase (MAPK) signaling pathways. Therefore, our findings imply that fraxetin possesses inhibitory roles in adipogenesis and can be a potential anti-obesity drug.
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Li J, Li C, Shi C, Aliakbarlu J, Cui H, Lin L. Antibacterial mechanisms of clove essential oil against Staphylococcus aureus and its application in pork. Int J Food Microbiol 2022; 380:109864. [DOI: 10.1016/j.ijfoodmicro.2022.109864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/28/2022] [Accepted: 07/28/2022] [Indexed: 12/01/2022]
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nor 3′-Demethoxyisoguaiacin from Larrea tridentata Is a Potential Alternative against Multidrug-Resistant Bacteria Associated with Bovine Mastitis. Molecules 2022; 27:molecules27113620. [PMID: 35684556 PMCID: PMC9182459 DOI: 10.3390/molecules27113620] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 02/06/2023] Open
Abstract
Bovine mastitis is one of the most common diseases in dairy cows, and it causes significant economic losses in dairy industries worldwide. Gram-positive and Gram-negative bacteria can cause bovine mastitis, and many of them have developed antimicrobial resistance. There is an urgent need for novel therapeutic options to treat the disease. Larrea tridentata-derived compounds represent an important potential alternative treatment. The aim of the present study was to isolate and characterize antibacterial compounds from Larrea tridentata against multidrug-resistant bacteria associated with bovine mastitis. The L. tridentata hydroalcoholic extract (LTHE) exhibited antibacterial activity. The extract was subjected to a bipartition, giving an aqueous fraction (moderate antibacterial activity) and an organic fraction (higher antibacterial activity). Chromatographic separation of the organic fraction enabled us to obtain four active sub-fractions. Chemical analyses through HPLC techniques were conducted for the LTHE, fractions, and sub-fraction Ltc1-F3, from which we isolated two compounds, characterized by 1H and 13C NMR analyses. Compound nor-3 demethoxyisoguaiacin exhibited the best antibacterial activity against the evaluated bacteria (MIC: 0.01–3.12 mg/mL; MBC: 0.02–3.12 mg/mL). The results indicated that nor-3 demethoxyisoguaiacin can be used as an alternative treatment for multidrug-resistant bacteria associated with mastitis.
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Li C, Li J, Lai J, Liu Y. The pharmacological and pharmacokinetic properties of esculin: A comprehensive review. Phytother Res 2022; 36:2434-2448. [PMID: 35599456 DOI: 10.1002/ptr.7470] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/25/2022] [Accepted: 04/06/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Chun‐xiao Li
- Department of Dermatology Hospital of Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Jing‐chun Li
- Department of Dermatology Hospital of Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Jiang Lai
- Department of Anorectal Surgery Third People's Hospital of Chengdu Chengdu China
| | - Ying Liu
- Department of Dermatology Hospital of Chengdu University of Traditional Chinese Medicine Chengdu China
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15
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Isolation and Characterization of Antibacterial Compounds from Aspergillus fumigatus: An Endophytic Fungus from a Mangrove Plant of the Sundarbans. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9600079. [PMID: 35497914 PMCID: PMC9054444 DOI: 10.1155/2022/9600079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 04/09/2022] [Indexed: 11/17/2022]
Abstract
The Sundarbans, a UNESCO world heritage site, is one of the largest mangrove forests in one stretch. Mangrove plants from this forest are little studied for their endophytic fungi. In this study, we isolated fourteen endophytic fungi from the plants Ceriops decandra and Avicennia officinalis collected from the Sundarbans. Five of them were identified as Aspergillus sp. and one as Penicillium sp. by macroscopic and microscopic observation. Antibacterial activity of the crude extracts obtained from these endophytes was determined against Staphylococcus aureus, Micrococcus luteus, Escherichia coli, and Pseudomonas aeruginosa using resazurin-based microtiter assay. The isolated endophytes showed varying degrees of antibacterial activity with MICs ranging between 5 and 0.078 mg/mL. Molecular identification of the most active endophyte revealed its identity as Aspergillus fumigatus obtained from the leaves of C. decandra. Acute toxicity study of the ethyl acetate extract of A. fumigatus in mice revealed no mortality even at the highest dose of 2000 mg/kg bodyweight, though some opposing results are found in the subacute toxicity study. The extract was subjected to silica gel and Sephadex column chromatography resulting in the isolation of three pure compounds. LC-MS analysis of these pure compounds revealed their identity as fumigaclavine C, azaspirofuran B, and fraxetin. This is the first report of fraxetin from A. fumigatus. All three identified compounds were previously reported for their antibacterial activity against different strains of both Gram-positive and Gram-negative bacteria. Therefore, the observed antibacterial activity of the ethyl acetate (EtOAc) extract of A. fumigatus could be due to the presence of these compounds. These results support the notion of investigating fungal endophytes from the Sundarbans for new antimicrobial compounds.
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16
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Elhady SS, Abdelhameed RFA, Mehanna ET, Wahba AS, Elfaky MA, Koshak AE, Noor AO, Bogari HA, Malatani RT, Goda MS. Metabolic Profiling, Chemical Composition, Antioxidant Capacity, and In Vivo Hepato- and Nephroprotective Effects of Sonchus cornutus in Mice Exposed to Cisplatin. Antioxidants (Basel) 2022; 11:antiox11050819. [PMID: 35624682 PMCID: PMC9137627 DOI: 10.3390/antiox11050819] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 12/15/2022] Open
Abstract
Sonchus cornutus (Asteraceae) is a wild. edible plant that represents a plentiful source of polyphenolic compounds. For the first time, the metabolic analysis profiling demonstrated the presence of anthocyanidin glycosides, coumarins, flavonoids and their corresponding glycosides, and phenolic acids. The total phenolic compounds were determined to be 206.28 ± 14.64 mg gallic acid equivalent/gm, while flavonoids were determined to be 45.56 ± 1.78 mg quercetin equivalent/gm. The crude extract of S. cornutus exhibited a significant 1,1-diphenyl-2-picrylhydrazyl free radical scavenging effect with half-maximal inhibitory concentration (IC50) of 16.10 ± 2.14 µg/mL compared to ascorbic acid as a standard (10.64 ± 0.82 µg/mL). In vitro total antioxidant capacity and ferric reducing power capacity assays revealed a promising reducing potential of S. cornutus extract. Therefore, the possible protective effects of S. cornutus against hepatic and renal toxicity induced by cisplatin in experimental mice were investigated. S. cornutus significantly ameliorated the cisplatin-induced disturbances in liver and kidney functions and oxidative stress, decreased MDA, ROS, and NO levels, and restored CAT and SOD activities. Besides, it reversed cisplatin-driven upregulation in inflammatory markers, including iNOS, IL-6, and IL-1β levels and NF-κB and TNF-α expression, and elevated anti-inflammatory IL-10 levels and Nrf2 expression. Additionally, the extract mitigated cisplatin alteration in apoptotic (Bax and caspase-3) and anti-apoptotic (Bcl-2) proteins. Interestingly, hepatic, and renal histopathology revealed the protective impacts of S. cornutus against cisplatin-induced pathological changes. Our findings guarantee a protective effect of S. cornutus against cisplatin-induced hepatic and renal damage via modulating oxidative stress, inflammation, and apoptotic pathways.
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Affiliation(s)
- Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.A.E.); (A.E.K.)
- Correspondence: (S.S.E.); (R.F.A.A.); Tel.: +966-544512552 (S.S.E.)
| | - Reda F. A. Abdelhameed
- Department of Pharmacognosy, Faculty of Pharmacy, Galala University, New Galala 43713, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
- Correspondence: (S.S.E.); (R.F.A.A.); Tel.: +966-544512552 (S.S.E.)
| | - Eman T. Mehanna
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (E.T.M.); (A.S.W.)
| | - Alaa Samir Wahba
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (E.T.M.); (A.S.W.)
| | - Mahmoud A. Elfaky
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.A.E.); (A.E.K.)
- Centre for Artificial Intelligence in Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdulrahman E. Koshak
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.A.E.); (A.E.K.)
| | - Ahmad O. Noor
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.O.N.); (H.A.B.); (R.T.M.)
| | - Hanin A. Bogari
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.O.N.); (H.A.B.); (R.T.M.)
| | - Rania T. Malatani
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.O.N.); (H.A.B.); (R.T.M.)
| | - Marwa S. Goda
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
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17
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Lee M, Yang C, Park S, Song G, Lim W. Fraxetin induces cell death in colon cancer cells via mitochondria dysfunction and enhances therapeutic effects in 5-fluorouracil resistant cells. J Cell Biochem 2021; 123:469-480. [PMID: 34816480 DOI: 10.1002/jcb.30187] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 11/02/2021] [Accepted: 11/15/2021] [Indexed: 01/12/2023]
Abstract
Fraxetin is a natural compound extracted from Fraxinus spp. and has various functions such as antibacterial, antioxidant, neuroprotective, and antifibrotic effects. Although studies have reported its anticancer properties in lung and breast cancer, little is known about colon cancer, the most frequent type of cancer. Thus, we used two colon cancer cell lines, HT29 and HCT116 cells, to investigate whether fraxetin could inhibit the capabilities acquired during tumor development. In this study, fraxetin suppressed cell viability and induced apoptotic cell death in HT29 and HCT116 cells. Furthermore, fraxetin regulated the expression of proteins involved in apoptosis in HT29 and HCT116 cells. Additionally, fraxetin induced reactive oxygen species levels and calcium influx with loss of mitochondrial membrane potential (ΔΨm) and endoplasmic reticulum stress. Moreover, fraxetin induced G2/M arrest and modulated the intracellular signaling pathway, including AKT, ERK1/2, JNK, and P38. Nevertheless, we found no cause-effect correlation between the antiproliferative action of fraxetin and modulation of the phosphorylation state of signaling proteins. Fraxetin-induced inhibitory effect on colon cancer cell viability was synergistic with 5-fluorouracil (5-FU) or irinotecan even in 5-FU resistant-HCT116 cells. Collectively, our results suggest that fraxetin can be effectively used as a therapeutic agent for targeting colon cancer, although it is necessary to further elucidate the relationship between the hallmark capabilities that fraxetin inhibits and the intracellular regulatory mechanism.
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Affiliation(s)
- Minkyeong Lee
- Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, Republic of Korea
| | - Changwon Yang
- Department of Biotechnology and Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Sunwoo Park
- Department of Plant & Biomaterials Science, Gyeongsang National University, Jinju-si, Republic of Korea
| | - Gwonhwa Song
- Department of Biotechnology and Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Whasun Lim
- Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, Republic of Korea
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18
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Han Y, Chen W, Sun Z. Antimicrobial activity and mechanism of limonene against
Staphylococcus aureus. J Food Saf 2021. [DOI: 10.1111/jfs.12918] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yingjie Han
- College of Food Sciences & Engineering, Hainan University Haikou China
| | - Wenxue Chen
- College of Food Sciences & Engineering, Hainan University Haikou China
| | - Zhichang Sun
- College of Food Sciences & Engineering, Hainan University Haikou China
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19
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Guo F, Liang Q, Zhang M, Chen W, Chen H, Yun Y, Zhong Q, Chen W. Antibacterial Activity and Mechanism of Linalool against Shewanella putrefaciens. Molecules 2021; 26:molecules26010245. [PMID: 33466475 PMCID: PMC7796449 DOI: 10.3390/molecules26010245] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/24/2020] [Accepted: 12/31/2020] [Indexed: 11/26/2022] Open
Abstract
The demand for reduced chemical preservative usage is currently growing, and natural preservatives are being developed to protect seafood. With its excellent antibacterial properties, linalool has been utilized widely in industries. However, its antibacterial mechanisms remain poorly studied. Here, untargeted metabolomics was applied to explore the mechanism of Shewanella putrefaciens cells treated with linalool. Results showed that linalool exhibited remarkable antibacterial activity against S. putrefaciens, with 1.5 µL/mL minimum inhibitory concentration (MIC). The growth of S. putrefaciens was suppressed completely at 1/2 MIC and 1 MIC levels. Linalool treatment reduced the membrane potential (MP); caused the leakage of alkaline phosphatase (AKP); and released the DNA, RNA, and proteins of S. putrefaciens, thus destroying the cell structure and expelling the cytoplasmic content. A total of 170 differential metabolites (DMs) were screened using metabolomics analysis, among which 81 species were upregulated and 89 species were downregulated after linalool treatment. These DMs are closely related to the tricarboxylic acid (TCA) cycle, glycolysis, amino acid metabolism, pantothenate and CoA biosynthesis, aminoacyl-tRNA biosynthesis, and glycerophospholipid metabolism. In addition, linalool substantially affected the activity of key enzymes, such as succinate dehydrogenase (SDH), pyruvate kinase (PK), ATPase, and respiratory chain dehydrogenase. The results provided some insights into the antibacterial mechanism of linalool against S. putrefaciens and are important for the development and application of linalool in seafood preservation.
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Affiliation(s)
- Fengyu Guo
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
| | - Qiong Liang
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
| | - Ming Zhang
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
| | - Wenxue Chen
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
| | - Haiming Chen
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
| | - Yonghuan Yun
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
| | - Qiuping Zhong
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
- Correspondence: (Q.Z.); (W.C.)
| | - Weijun Chen
- College of Food Science and Technology, Hainan University, Haikou 570228, China; (F.G.); (Q.L.); (M.Z.); (W.C.); (H.C.); (Y.Y.)
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
- Hainan Provincial Engineering Research Center of Aquatic Resources Efficient Utilization in the South China Sea, Haikou 570228, China
- Correspondence: (Q.Z.); (W.C.)
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20
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Dai J, Li C, Cui H, Lin L. Unraveling the anti-bacterial mechanism of Litsea cubeba essential oil against E. coli O157:H7 and its application in vegetable juices. Int J Food Microbiol 2020; 338:108989. [PMID: 33257098 DOI: 10.1016/j.ijfoodmicro.2020.108989] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/19/2022]
Abstract
Recently, natural essential oils have been extensively studied for anti-bacterial application in foods due to their safety and high biological activity. Herein, Litsea cubeba essential oil (LC-EO) was applied as a natural anti-bacterial agent for exploring its anti-bacterial mechanism against Enterohemorrhagic Escherichia coli O157:H7 (EHEC O157:H7). The LC-EO could effectively inhibit the growth of EHEC O157:H7 and the minimal inhibitory concentration (MIC) was 0.5 mg/mL. In the study of anti-bacterial mechanism, the LC-EO was proved with good membrane penetration ability, which could destroy bacterial cell structure and disorder membrane permeability, thereby causing the leakage of intracellular organic matters. Furthermore, the inhibitory effects of LC-EO on physiological metabolism of EHEC O157:H7, including respiratory metabolism, enzyme activity, the replication of nucleic acid and the transcription level of main virulence genes (stx1, stx2, ehxA, eae), were also demonstrated in this study. Specially, the possible action mechanism of different components of LC-EO on bacterial genetic material was revealed deeply on molecular level by the molecular docking technology. Finally, the results of application evaluation indicated that the addition of LC-EO at MIC in different vegetable juices could maintain anti-bacterial rate above 99.9% for 4 days without remarkable influence on foods sensory quality. The information in this study provides the necessary theoretical foundation for extending the application of LC-EO in food preservation.
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Affiliation(s)
- Jinming Dai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China.
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21
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Root-Secreted Coumarins and the Microbiota Interact to Improve Iron Nutrition in Arabidopsis. Cell Host Microbe 2020; 28:825-837.e6. [PMID: 33027611 PMCID: PMC7738756 DOI: 10.1016/j.chom.2020.09.006] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/27/2020] [Accepted: 09/09/2020] [Indexed: 01/04/2023]
Abstract
Plants benefit from associations with a diverse community of root-colonizing microbes. Deciphering the mechanisms underpinning these beneficial services are of interest for improving plant productivity. We report a plant-beneficial interaction between Arabidopsis thaliana and the root microbiota under iron deprivation that is dependent on the secretion of plant-derived coumarins. Disrupting this pathway alters the microbiota and impairs plant growth in iron-limiting soil. Furthermore, the microbiota improves iron-limiting plant performance via a mechanism dependent on plant iron import and secretion of the coumarin fraxetin. This beneficial trait is strain specific yet functionally redundant across phylogenetic lineages of the microbiota. Transcriptomic and elemental analyses revealed that this interaction between commensals and coumarins promotes growth by relieving iron starvation. These results show that coumarins improve plant performance by eliciting microbe-assisted iron nutrition. We propose that the bacterial root microbiota, stimulated by secreted coumarins, is an integral mediator of plant adaptation to iron-limiting soils.
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22
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Liu X, Yue Y, Wu Y, Zhong K, Bu Q, Gao H. Discovering the antibacterial mode of action of 3‐
p
‐
trans
‐coumaroyl‐2‐hydroxyquinic acid, a natural phenolic compound, against
Staphylococcus aureus
through an integrated transcriptomic and proteomic approach. J Food Saf 2020. [DOI: 10.1111/jfs.12861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaoyan Liu
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
| | - Yuxi Yue
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
| | - Yanping Wu
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
- Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province Sichuan University Chengdu China
| | - Kai Zhong
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
- Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province Sichuan University Chengdu China
| | - Qian Bu
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
- Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province Sichuan University Chengdu China
| | - Hong Gao
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center Sichuan University Chengdu China
- Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province Sichuan University Chengdu China
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23
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Potential Role of Plant Extracts and Phytochemicals Against Foodborne Pathogens. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134597] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Foodborne diseases are one of the major causes of morbidity and mortality, especially in low-income countries with poor sanitation and inadequate healthcare facilities. The foremost bacterial pathogens responsible for global outbreaks include Salmonella species, Campylobacter jejuni, Escherichia coli, Shigella sp., Vibrio, Listeria monocytogenes and Clostridium botulinum. Among the viral and parasitic pathogens, norovirus, hepatitis A virus, Giardia lamblia, Trichinella spiralis, Toxoplasma and Entamoeba histolytica are commonly associated with foodborne diseases. The toxins produced by Staphylococcus aureus, Bacillus cereus and Clostridium perfringens also cause these infections. The currently available therapies for these infections are associated with various limited efficacy, high cost and side-effects. There is an urgent need for effective alternative therapies for the prevention and treatment of foodborne diseases. Several plant extracts and phytochemicals were found to be highly effective to control the growth of these pathogens causing foodborne infections in in vitro systems. The present review attempts to provide comprehensive scientific information on major foodborne pathogens and the potential role of phytochemicals in the prevention and treatment of these infections. Further detailed studies are necessary to evaluate the activities of these extracts and phytochemicals along with their mechanism of action using in vivo models.
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Jia CF, Yu WN, Zhang BL. Manufacture and antibacterial characteristics of Eucommia ulmoides leaves vinegar. Food Sci Biotechnol 2020; 29:657-665. [PMID: 32419964 DOI: 10.1007/s10068-019-00712-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 11/28/2022] Open
Abstract
In this work, the fermentation conditions and the antibacterial characteristics of Eucommia ulmoides leaves vinegar (EV) were studied. By single factor orthogonal test, it was found that under optimal fermentation conditions (bran addition 10%, sugar addition 8%, leaven addition 0.3% and acetic acid bacteria solution 12%), the acetic acid content and CA content of EV were 45.5 ± 2.8 mg/mL and 0.98 ± 0.08 mg/mL, respectively. Then, by the disc diffusion method, it was concluded that the antibacterial effect of EV was significantly higher than that of Eucommia ulmoides leaves enzymatic hydrolysate and Zhenjiang aromatic vinegar (P<0.05). An investigation into action mode of EV against Bacillus subtilis indicated that, under the combined action of CA and acetic acid, EV exerted its antibacterial effect by damaging bacterial cell wall and cell membrane, increasing the cell permeability which resulted in the structural lesions and release of cell components, thus led to cell death.
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Affiliation(s)
- Chun-Feng Jia
- 1College of Biochemical Engineering and Environmental Engineering, Baoding University, Baoding, 071000 China
| | - Wang-Ning Yu
- 2College of Medicine, Hebei University of Engineering, Affiliated Hospital, Handan, 056002 China
| | - Bo-Lin Zhang
- 3College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083 China
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Coumarins as Modulators of the Keap1/Nrf2/ARE Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1675957. [PMID: 32377290 PMCID: PMC7196981 DOI: 10.1155/2020/1675957] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/14/2020] [Accepted: 04/06/2020] [Indexed: 12/30/2022]
Abstract
The Keap1/Nrf2/ARE system is a central defensive mechanism against oxidative stress which plays a key role in the pathogenesis and progression of many diseases. Nrf2 is a redox-sensitive transcription factor controlling a variety of downstream antioxidant and cytodefensive genes. Nrf2 has a powerful anti-inflammatory activity mediated via modulating NF-κB. Therefore, pharmacological activation of Nrf2 is a promising therapeutic strategy for the treatment/prevention of several diseases that are underlined by both oxidative stress and inflammation. Coumarins are natural products with promising pharmacological activities, including antioxidant, anticancer, antimicrobial, and anti-inflammatory efficacies. Coumarins are found in many plants, fungi, and bacteria and have been widely used as complementary and alternative medicines. Some coumarins have shown an ability to activate Nrf2 signaling in different cells and animal models. The present review compiles the research findings of seventeen coumarin derivatives of plant origin (imperatorin, visnagin, urolithin B, urolithin A, scopoletin, esculin, esculetin, umbelliferone, fraxetin, fraxin, daphnetin, anomalin, wedelolactone, glycycoumarin, osthole, hydrangenol, and isoimperatorin) as antioxidant and anti-inflammatory agents, emphasizing the role of Nrf2 activation in their pharmacological activities. Additionally, molecular docking simulations were utilized to investigate the potential binding mode of these coumarins with Keap1 as a strategy to disrupt Keap1/Nrf2 protein-protein interaction and activate Nrf2 signaling.
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Chemical Constituents from Fraxinus hupehensis and Their Antifungal and Herbicidal Activities. Biomolecules 2020; 10:biom10010074. [PMID: 31906487 PMCID: PMC7022268 DOI: 10.3390/biom10010074] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 12/19/2022] Open
Abstract
The phytochemical investigation of Fraxinus hupehensis led to the isolation and characterization of ten compounds which were identified as fraxin (1), fraxetin (2), esculetin (3), cichoriin (4), euphorbetin (5), kaempferol-3-O-β-rutinoside (6), oleuropein (7), linoleic acid (8), methyl linoleate (9), and β-sitosterol (10). Structures of the isolated constituents were characterized by 1H NMR, 13C NMR and HRMS. All the compounds, except compounds 3 and 4, were isolated for the first time from this plant. Further, this was the first report for the occurrence of compound 5 in the Fraxinus species. Antifungal activity evaluation showed that compound 2 exhibited significant inhibitory effects against Bipolaris maydis, Sclerotium rolfsii, and Alternaria solani with EC50 values of 0.31 ± 0.01 mmol/L, 10.50 ± 0.02 mmol/L, and 0.40 ± 0.02 mmol/L respectively, compared to the positive control, Carbendazim, with its EC50 values of 0.74 ± 0.01 mmol/L, 1.78 ± 0.01 mmol/L and 1.41 ± 0.00 mmol/L. Herbicidal activity tests showed that compounds 8-10 had strong inhibitory effects against the roots of Echinochloa crus-galli with EC50 values of 1.16 ± 0.23 mmol/L, 1.28 ± 0.58 mmol/L and 1.33 ± 0.35 mmol/L respectively, more potently active than that of the positive control, Cyanazine, with its EC50 values of 1.56 ± 0.44 mmol/L. However, none of the compounds proved to be active against the tested bacteria (Erwinia carotovora, Pseudomonas syringae, and Ralstonia solanacearum).
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Zhu Y, Li C, Cui H, Lin L. Antimicrobial mechanism of pulsed light for the control of Escherichia coli O157:H7 and its application in carrot juice. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.106751] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Xu F, Cao S, Wang C, Wang K, Wei Y, Shao X, Wang H. Antimicrobial activity of flavonoids from Sedum aizoon L. against Aeromonas in culture medium and in frozen pork. Food Sci Nutr 2019; 7:3224-3232. [PMID: 31660136 PMCID: PMC6804768 DOI: 10.1002/fsn3.1178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 06/18/2019] [Accepted: 06/22/2019] [Indexed: 11/17/2022] Open
Abstract
The chemical composition and antimicrobial activity of flavonoids from Sedum aizoon L. against Aeromonas in vitro were investigated, and the effect of flavonoid treatment on the quality of fresh pork during frozen storage for 6 months was also explored. The results showed that kaempferol, quercetin dihydrate, and catechin were the most predominant flavonoids from S. aizoon L. Flavonoids exhibited antibacterial activity to Aeromonas in vitro, which caused membrane damage, disruption of the bacterial surface, and internal ultrastructure, and resulted in the leakage of reducing sugars and proteins. Meanwhile, flavonoid treatment retarded the microbial growth and deteriorates of pork characteristics, including pH value, total volatile basic nitrogen (TVB-N), texture, and sensory evaluation during frozen storage, thereby prolonged the shelf life. Their results suggested that flavonoids from S. aizoon L. offer a promising choice for food safety and preservation.
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Affiliation(s)
- Feng Xu
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
| | - Shifeng Cao
- College of Biological and Environmental Sciences, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang ProvinceZhejiang Wanli UniversityNingboChina
| | - Chunxing Wang
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
| | - Kaikai Wang
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
| | - Yingying Wei
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
| | - Xingfeng Shao
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
| | - Hongfei Wang
- State Key Laboratory for Quality and Safety of Agro‐products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical SciencesNingbo UniversityNingboChina
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Qin Z, Zhang B, Yang J, Li S, Xu J, Yao Z, Zhang X, Gonzalez FJ, Yao X. The Efflux Mechanism of Fraxetin- O-Glucuronides in UGT1A9-Transfected HeLa Cells: Identification of Multidrug Resistance-Associated Proteins 3 and 4 (MRP3/4) as the Important Contributors. Front Pharmacol 2019; 10:496. [PMID: 31133859 PMCID: PMC6515931 DOI: 10.3389/fphar.2019.00496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/18/2019] [Indexed: 12/26/2022] Open
Abstract
Fraxetin, a natural compound present in many dietary supplements and herbs, is useful in the treatment of acute bacillary dysentery and type 2 diabetes. Previously, several metabolic studies have revealed extensive first-pass metabolism causing formation of fraxetin-O-glucuronides (G1 and G2), resulting in poor bioavailability of fraxetin. Active transport processes play an important role in the excretion of fraxetin-O-glucuronides. Nevertheless, the transporters involved are yet to be elucidated. In this study, we aimed to determine the active efflux transporters, including breast cancer resistance protein (BCRP) and multidrug resistance-associated proteins (MRPs), involved in the excretion of fraxetin-O-glucuronides. A chemical inhibitor, MK571 (5 and 20 μM), a pan-MRP inhibitor, led to a significant decrease in excreted G1 (maximal 59.1%) and G2 levels (maximal 42.4%), whereas Ko143 (5 and 20 μM), a selective BCRP inhibitor, caused moderate downregulation of excreted G1 (maximal 29.4%) and G2 (maximal 28.5%). Furthermore, MRP3 silencing resulted in a marked decrease of excretion rates (by 29.1% for G1 and by 21.1% for G2) and of fraction metabolized (fmet; by 24.1% for G1 and by 18.6% for G2). Similar results, i.e., a significant reduction in excretion rates (by 34.8% for G1 and by 32.3% for G2) and in fmet (by 22.7% for G1 and by 23.1% for G2) were obtained when MRP4 was partially silenced. No obvious modifications in the excretion rates, intracellular levels, and fmet values of glucuronides were observed after short hairpin RNA (shRNA)-mediated silencing of transporters BCRP and MRP1. Taken together, our results indicate that MRP3 and MRP4 contribute more to the excretion of fraxetin-O-glucuronides than the other transporters do.
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Affiliation(s)
- Zifei Qin
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Beibei Zhang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Jing Yang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Shishi Li
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Jinjin Xu
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Zhihong Yao
- College of Pharmacy, Jinan University, Guangzhou, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Xiaojian Zhang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Xinsheng Yao
- College of Pharmacy, Jinan University, Guangzhou, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
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Minh TN, Xuan TD, Tran HD, Van TM, Andriana Y, Khanh TD, Quan NV, Ahmad A. Isolation and Purification of Bioactive Compounds from the Stem Bark of Jatropha podagrica. Molecules 2019; 24:molecules24050889. [PMID: 30832436 PMCID: PMC6429288 DOI: 10.3390/molecules24050889] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 02/21/2019] [Accepted: 02/26/2019] [Indexed: 02/04/2023] Open
Abstract
This paper reports the successive isolation and purification of bioactive compounds from the stem bark of Jatropha podagrica, a widely known medicinal plant. The ethyl acetate extract of the stem bark exhibited the strongest antioxidant activity assessed by 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging, and ferric reducing antioxidant power (FRAP) assays (IC50 = 46.7, 66.0, and 492.6, respectively). By column chromatography (CC) with elution of hexane and ethyl acetate at 8:2, 7:3, and 6:4 ratios, the isolation of this active extract yielded five fractions (C1–C5). Chemical structures of the constituents included in C1–C5 were elucidated by gas chromatography-mass spectrometry (GC-MS), electrospray ionization-mass spectrometry (ESI-MS), and nuclear magnetic resonance (NMR) and resolved as methyl gallate (C1, C2, C3, C4), gallic acid (C1, C2), fraxetin (C2, C3, C4, C5), and tomentin (C3). Mixture C2 (IC50 DPPH and ABTS = 2.5 µg/mL) and C3 (IC50 FRAP = 381 µg/mL) showed the highest antioxidant properties. Among the isolated fractions, C4 was the most potential agent in growth inhibition of six bacterial strains including Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Listeria monocytogenes,Bacillus subtilis, and Proteus mirabilis (MIC = 5, 20, 30, 20, 25, and 20 mg/mL, respectively). All identified constituents exerted an inhibitory activity on the growth of Lactuca sativa, of which the mixture C3 performed the maximal inhibition on shoot (IC50 = 49.4 µg/mL) and root (IC50 = 47.1 µg/mL) growth. Findings of this study suggest that gallic acid, methyl gallate, fraxetin, and tomentin isolated from J. podagrica possessed antioxidant, antibacterial, and growth inhibitory potentials.
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Affiliation(s)
- Truong Ngoc Minh
- Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi-Hiroshima 739-8529, Japan.
| | - Tran Dang Xuan
- Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi-Hiroshima 739-8529, Japan.
| | - Hoang-Dung Tran
- Department of Biotechnology, NTT Institute of Hi-Technology, Nguyen-Tat-Thanh University, 298A-300A Nguyen-Tat-Thanh Street, District 04, Ho chi Minh City 72820, Vietnam.
| | - Truong Mai Van
- Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi-Hiroshima 739-8529, Japan.
| | - Yusuf Andriana
- Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi-Hiroshima 739-8529, Japan.
| | - Tran Dang Khanh
- Agricultural Genetics Institute, Hanoi City 123000, Vietnam.
- Center for Expert, Vietnam National University of Agriculture, Hanoi 131000, Vietnam.
| | - Nguyen Van Quan
- Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi-Hiroshima 739-8529, Japan.
| | - Ateeque Ahmad
- Chemical Engineering, CSIR, CIMAP, Kukrail Picnic Spot Road, Lucknow 226016, India.
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Lin L, Gu Y, Li C, Vittayapadung S, Cui H. Antibacterial mechanism of ε -Poly-lysine against Listeria monocytogenes and its application on cheese. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.03.025] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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33
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Bai J, Wu Y, Zhong K, Xiao K, Liu L, Huang Y, Wang Z, Gao H. A Comparative Study on the Effects of Quinic Acid and Shikimic Acid on Cellular Functions of Staphylococcus aureus. J Food Prot 2018; 81:1187-1192. [PMID: 29939792 DOI: 10.4315/0362-028x.jfp-18-014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Quinic acid (QA) and shikimic acid (SA), two kinds of natural organic acids, have been reported to exhibit potent antibacterial activity against Staphylococcus aureus. In this study, the effects of QA and SA on the cellular functions of S. aureus were investigated by measuring the intracellular pH, intracellular and extracellular ATP concentrations, succinate dehydrogenase activity, DNA content, and interactions between SA and QA with S. aureus DNA. Studies of the cellular functions demonstrated that QA could significantly decrease the intracellular pH, whereas SA had no effect on intracellular pH. QA and SA reduced succinate dehydrogenase activity and caused a significant decrease in intracellular ATP concentration but no proportional increase in extracellular ATP. Moreover, QA and SA both could remarkably reduce the DNA content of S. aureus and directly interact with genomic DNA. The results suggested that the effects of QA and SA on cellular functions were distinguishable, although the chemical structures of these two compounds were similar. In conclusion, the results of the present research suggested that SA and QA could be used as antibacterial agents in food preservation.
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Affiliation(s)
- Jinrong Bai
- 1 Healthy Food Evaluation Research Center and.,2 Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China (ORCID: http://orcid.org/0000-0002-3657-8993 [J.B.]); and
| | - Yanping Wu
- 1 Healthy Food Evaluation Research Center and.,2 Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China (ORCID: http://orcid.org/0000-0002-3657-8993 [J.B.]); and
| | - Kai Zhong
- 1 Healthy Food Evaluation Research Center and.,2 Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China (ORCID: http://orcid.org/0000-0002-3657-8993 [J.B.]); and
| | - Kai Xiao
- 2 Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China (ORCID: http://orcid.org/0000-0002-3657-8993 [J.B.]); and
| | - Lijin Liu
- 3 Department of Public Health, West China Medical School of Sichuan University, Chengdu 610041, People's Republic of China
| | - Yina Huang
- 3 Department of Public Health, West China Medical School of Sichuan University, Chengdu 610041, People's Republic of China
| | - Zhengshu Wang
- 3 Department of Public Health, West China Medical School of Sichuan University, Chengdu 610041, People's Republic of China
| | - Hong Gao
- 1 Healthy Food Evaluation Research Center and.,2 Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, People's Republic of China (ORCID: http://orcid.org/0000-0002-3657-8993 [J.B.]); and
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34
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Xu F, Wang C, Wang H, Xiong Q, Wei Y, Shao X. Antimicrobial action of flavonoids from Sedum aizoon L. against lactic acid bacteria in vitro and in refrigerated fresh pork meat. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.09.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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35
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Wu Y, Bai J, Liu X, Liu L, Zhong K, Huang Y, Gao H. Antibacterial effect of 3-p-trans-coumaroyl-2-hydroxyquinic acid, a phenolic compound from needles ofCedrus deodara, on cellular functions ofStaphylococcus aureus. RSC Adv 2018; 8:4969-4975. [PMID: 35539522 PMCID: PMC9077780 DOI: 10.1039/c7ra13457f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/22/2018] [Indexed: 11/21/2022] Open
Abstract
Structure–activity relationship of 3-p-trans-coumaroyl-2-hydroxyquinic acid, a phenolic compound from needles ofCedrus deodara, againstStaphylococcus aureusand its effect on the cellular functions.
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Affiliation(s)
- Yanping Wu
- Healthy Food Evaluation Research Center
- Sichuan University
- Chengdu 610065
- China
- Department of Food Science and Technology
| | - Jinrong Bai
- Department of Food Science and Technology
- College of Light Industry, Textile and Food Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Xiaoyan Liu
- Department of Food Science and Technology
- College of Light Industry, Textile and Food Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lijin Liu
- Department of Public Health
- West China Medical School
- Sichuan University
- Chengdu 610041
- China
| | - Kai Zhong
- Healthy Food Evaluation Research Center
- Sichuan University
- Chengdu 610065
- China
- Department of Food Science and Technology
| | - Yina Huang
- Department of Public Health
- West China Medical School
- Sichuan University
- Chengdu 610041
- China
| | - Hong Gao
- Healthy Food Evaluation Research Center
- Sichuan University
- Chengdu 610065
- China
- Department of Food Science and Technology
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36
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Fraxinus: A Plant with Versatile Pharmacological and Biological Activities. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:4269868. [PMID: 29279716 PMCID: PMC5723943 DOI: 10.1155/2017/4269868] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/24/2017] [Accepted: 11/07/2017] [Indexed: 01/11/2023]
Abstract
Fraxinus, a member of the Oleaceae family, commonly known as ash tree is found in northeast Asia, north America, east and western France, China, northern areas of Pakistan, India, and Afghanistan. Chemical constituents of Fraxinus plant include various secoiridoids, phenylethanoids, flavonoids, coumarins, and lignans; therefore, it is considered as a plant with versatile biological and pharmacological activities. Its tremendous range of pharmacotherapeutic properties has been well documented including anticancer, anti-inflammatory, antioxidant, antimicrobial, and neuroprotective. In addition, its bioactive phytochemicals and secondary metabolites can be effectively used in cosmetic industry and as a competent antiaging agent. Fraxinus presents pharmacological effectiveness by targeting the novel targets in several pathological conditions, which provide a spacious therapeutic time window. Our aim is to update the scientific research community with recent endeavors with specifically highlighting the mechanism of action in different diseases. This potentially efficacious pharmacological drug candidate should be used for new drug discovery in future. This review suggests that this plant has extremely important medicinal utilization but further supporting studies and scientific experimentations are mandatory to determine its specific intracellular targets and site of action to completely figure out its pharmacological applications.
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Hou X, Wei W, Fan Y, Zhang J, Zhu N, Hong H, Wang C. Study on synthesis and bioactivity of biotinylated emodin. Appl Microbiol Biotechnol 2017; 101:5259-5266. [PMID: 28386632 DOI: 10.1007/s00253-017-8243-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/09/2017] [Accepted: 03/12/2017] [Indexed: 11/28/2022]
Abstract
A novel compound biotinylated emodin was synthesized by a two-step acyl chloride method which connects the biotin to emodin with esterification reaction. The product was characterized with ultraviolet-visible spectrophotometry, fourier transform infrared and high-performance liquid chromatography tandem mass spectrometry techniques. Its antibacterial activity against Staphylococcus aureus CMCC 26003 was investigated, and the emodin- and biotinylated emodin-caused antibacterial mechanism was proposed. It was shown that the product was isolated and activity of emodin was remained. These results indicated that our study provides a kind of chemosynthesis method under mild conditions and a strong molecular tool for investigating the emodin-binding protein.
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Affiliation(s)
- Xueli Hou
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Wenqiang Wei
- Tongwei Food and Drug Administration, Gansu, 743300, China
| | - Yunyun Fan
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Jianbin Zhang
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Ning Zhu
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Hailong Hong
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Cuiyan Wang
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China.
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