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Chen H, Zhou H, Qi Z, Xue X, Wang C. Vortex-blending matrix solid-phase dispersion and UPLC-Q-TOF/MS were proposed to extract and examine the urushiols from Toxicodendron vernicifluum bark. J Pharm Biomed Anal 2024; 242:116066. [PMID: 38417325 DOI: 10.1016/j.jpba.2024.116066] [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: 12/06/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
Toxicodendron vernicifluum bark has been used for many years as a component in foods and as a traditional herbal medication. Unfortunately, the presence of urushiols, which induce allergies, limits its application. This study used a vortex-blending matrix solid-phase dispersion microextraction technique to extract urushiols from Toxicodendron vernicifluum bark. HPLC was used to evaluate the amounts of the extracted urushiols (15:0, 15:1, 15:2, and 15:3). The modified magnetic adsorbent was prepared through an in situ coprecipitation method and characterized using a variety of techniques. The optimized extraction conditions are as follows: using magnetic Zeolite Socony Mobil-Five as an adsorbent, a 1:2 sample/adsorbent ratio, 2.5 min of vortex-blending time, 4 mL of 0.1% (V/V) trifluoroacetic acid-methanol as the elution solvent and 8 min of ultrasound time. There was good linearity and high repeatability in the method. Furthermore, the limits of detection for the urushiols ranged from 0.20 to 0.50 μg/mL. Under the optimized conditions, 50 compounds were identified by ultra high performance liquid chromatography and quadrupole time-of-flight mass spectrometry. These compounds included 8 phenolic acids, 9 monomeric urushiols, 11 urushiol dimers, 10 other components, and 11 flavonoids. The suggested approach, which has the advantages of few stages and high extraction efficiency over existing extraction procedures, is a potentially useful method for obtaining and evaluating urushiols in raw materials or extracts.
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Affiliation(s)
- HongXia Chen
- Institute of Chemical Industry of Forest Products, CAF, China; National Engineering Laboratory for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA, China; Key Laboratory of Biomass Energy and Material, Jiangsu Province, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210042, China.
| | - Hao Zhou
- Institute of Chemical Industry of Forest Products, CAF, China; National Engineering Laboratory for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA, China; Key Laboratory of Biomass Energy and Material, Jiangsu Province, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210042, China
| | - Zhiwen Qi
- Institute of Chemical Industry of Forest Products, CAF, China; National Engineering Laboratory for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA, China; Key Laboratory of Biomass Energy and Material, Jiangsu Province, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210042, China
| | - Xingying Xue
- Institute of Chemical Industry of Forest Products, CAF, China; National Engineering Laboratory for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA, China; Key Laboratory of Biomass Energy and Material, Jiangsu Province, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210042, China
| | - ChengZhang Wang
- Institute of Chemical Industry of Forest Products, CAF, China; National Engineering Laboratory for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA, China; Key Laboratory of Biomass Energy and Material, Jiangsu Province, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210042, China.
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2
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Park WR, Choi HS, Moon JH, Kim IS, Kim DK. 3-Methylcatechol mediates anti-fecundity effect by inhibiting estrogen-related receptor-induced glycolytic gene expression in Myzus persicae. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 200:105802. [PMID: 38582605 DOI: 10.1016/j.pestbp.2024.105802] [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: 09/15/2023] [Revised: 12/28/2023] [Accepted: 01/20/2024] [Indexed: 04/08/2024]
Abstract
Aphids are a major problem in agriculture, horticulture, and forestry by feeding on leaves and stems, causing discoloration, leaf curling, yellowing, and stunted growth. Although urushiol, a phenolic compound containing a catechol structure, is known for its antioxidant and anticancer properties, using small molecules to control aphids via catechol-mediated mechanisms is poorly understood. In this study, we investigated the effects of 3-methylcatechol (3-MC) on Myzus persicae fecundity. Our results showed that treatment with 3-MC significantly reduced the intrinsic transcriptional activity of the aphid estrogen-related receptor (MpERR), which regulates the expression of glycolytic genes. Additionally, 3-MC treatment suppressed the promoter activity of MpERR-induced rate-limiting enzymes in glycolysis, such as phosphofructokinase and pyruvate kinase, by inhibiting MpERR binding. Finally, 3-MC also suppressed MpERR-induced glycolytic gene expression and reduced the number of offspring produced by viviparous female aphids. Overall, our findings suggest that 3-MC has the potential to be used as a new strategy for managing aphid populations by controlling their offspring production.
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Affiliation(s)
- Woo-Ram Park
- Host-Directed Antiviral Research Center, Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hueng-Sik Choi
- Host-Directed Antiviral Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Jae-Hak Moon
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - In-Seon Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Don-Kyu Kim
- Host-Directed Antiviral Research Center, Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea.
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3
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Jie X, Shiu BC, Zhang Y, Wu H, Ye Y, Fang R. Chitosan-Urushiol nanofiber membrane with enhanced acid resistance and broad-spectrum antibacterial activity. Carbohydr Polym 2023; 312:120792. [PMID: 37059532 DOI: 10.1016/j.carbpol.2023.120792] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/11/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Due to the large specific surface area and rich pore structure, chitosan nanofiber membrane has many advantages over conventional gel-like or film-like products. However, the poor stability in acidic solutions and relatively weak antibacterial activity against Gram-negative bacteria severely restrict its use in many industries. Here, we present a chitosan-urushiol composite nanofiber membrane prepared by electrospinning. Chemical and morphology characterization revealed that the formation of chitosan-urushiol composite involved the Schiff base reaction between catechol and amine groups and the self-polymerization of urushiol. The unique crosslinked structure and multiple antibacterial mechanisms endowed the chitosan-urushiol membrane with outstanding acid resistance and antibacterial performance. After immersion in HCl solution at pH 1, the membrane maintained its intact appearance and satisfactory mechanical strength. In addition to its good antibacterial performance against Gram-positive Staphylococcus aureus (S. aureus), the chitosan-urushiol membrane exhibited synergistic antibacterial activity against Gram-negative Escherichia coli (E. coli) that far exceeded that of neat chitosan membrane and urushiol. Moreover, cytotoxicity and hemolysis assays revealed that the composite membrane had good biocompatibility similar to that of neat chitosan. In short, this work provides a convenient, safe, and environmentally friendly method to simultaneously enhance the acid resistance and broad-spectrum antibacterial activity of chitosan nanofiber membranes.
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Affiliation(s)
- Xiaoyu Jie
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Environment and Safety Engineering, Fuzhou university, Fuzhou 350108, China
| | - Bing-Chiuan Shiu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China
| | - Yuchi Zhang
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China
| | - Huazhong Wu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Yuansong Ye
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China.
| | - Run Fang
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Environment and Safety Engineering, Fuzhou university, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China.
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4
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In Search of Novel Degradation-Resistant Monomers for Adhesive Dentistry: A Systematic Review and Meta-Analysis. Biomedicines 2022; 10:biomedicines10123104. [PMID: 36551861 PMCID: PMC9775292 DOI: 10.3390/biomedicines10123104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022] Open
Abstract
This study aimed to assess whether degradation-resistant monomers included in experimental dental adhesives can improve long-term bond strength compared to conventional monomers. This study followed the latest PRISMA guidance (2020). The search for the systematic review was carried out in four electronic databases: PubMed/Medline, Scopus, SciELO and EMBASE, without restrictions on the year of publication and language. The last screening was conducted in July 2022. Interventions included were in vitro studies on experimental dental adhesives that tested short-term and long-term bond strength, but also water sorption and solubility data when available, in extracted human molars. Meta-analyses were performed using Rstudio v1.4.1106. A summary table analyzing the individual risk of bias was generated using the recent RoBDEMAT tool. Of the 177 potentially eligible studies, a total of 7 studies were included. Experimental monomers with acrylamides or methacrylamide−acrylamide hybrids in their composition showed better results of aged bond strength when compared to methacrylate controls (p < 0.05). The experimental monomers found better sorption and solubility compared to controls and were significantly different (p < 0.001). It is possible to achieve hydrolytically resistant formulations by adding novel experimental monomers, with chemical structures that bring benefit to degradation mechanisms.
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Bamboo Salt and Triple Therapy Synergistically Inhibit Helicobacter pylori-Induced Gastritis In Vivo: A Preliminary Study. Int J Mol Sci 2022; 23:ijms232213997. [PMID: 36430475 PMCID: PMC9696544 DOI: 10.3390/ijms232213997] [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: 09/06/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Helicobacter pylori infections are a major cause of gastrointestinal disorders, including gastric ulcers, gastritis, and gastric cancer. Triple therapy, using two antibiotics and a proton pump inhibitor, is recommended for the treatment of H. pylori infections. However, antibiotic resistance in H. pylori is an emerging issue. Bamboo salt, a traditional Korean salt made by baking solar sea salt in bamboo barrels, can ameliorate the symptoms of various gastrointestinal diseases. Herein, we compared the anti-H. pylori activity of triple therapy (clarithromycin, metronidazole, and omeprazole), solar salt, and bamboo salt in vivo as a preliminary study. Four-week-old C57BL/6 male mice were inoculated for eight weeks with the H. pylori Sydney Strain 1 (SS-1) and orally administered triple therapy drugs and salts for five days. The transcript levels of the H. pylori-expressed gene CagA and inflammatory cytokines Tnfα and Il-1β significantly decreased in the bamboo salt treated mice than those in the H. pylori-infected control group. This effect was further enhanced by using triple therapy and bamboo salt together. Solar salt caused modest inhibition of H. pylori-induced inflammation. We also demonstrated the synergistic effects of bamboo salt and triple therapy against H. pylori. Thus, bamboo salt may be a potential candidate agent against the treatment of H. pylori-associated gastritis.
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Zhao Y, He X, Wang H, Wang H, Shi Z, Zhu S, Cui Z. Polyphenol-Enriched Extract of Lacquer Sap Used as a Dentine Primer with Benefits of Improving Collagen Cross-Linking and Antibacterial Functions. ACS Biomater Sci Eng 2022; 8:3741-3753. [PMID: 35793160 PMCID: PMC9472228 DOI: 10.1021/acsbiomaterials.1c01287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Commercial dentin adhesive systems are applied to restorations due to their resistant bonding properties, but they suffer from the lack of bioactivity and are prone to hydrolysis. Therefore, to overcome these limitations, an eco-friendly natural monomer, urushiol, was adopted to be a primer in dentin bonding due to its interaction with collagen and antibacterial activity, preventing further hydrolysis development. First, urushiol was determined to be capable of improving the biological stability of dentin collagen through cross-linking. Using high-fidelity analytical chemistry techniques, such as Fourier transform infrared spectroscopy, we quantified the effects of urushiol on collagen molecules. It could also effectively decrease weight loss after collagenase ingestion by improving the stability of dentin. Moreover, urushiol inhibited Streptococcus mutans growth as well as its biofilm formation. Finally, we demonstrated that the urushiol primer could improve the bonding strength, particularly after aging. The cross-linking and antibacterial functions of urushiol have provided promising developmental prospects for biomaterials in dentin adhesion.
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Affiliation(s)
- Ying Zhao
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Xi He
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Han Wang
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Huimin Wang
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zuosen Shi
- State
Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130021, P. R.
China
| | - Song Zhu
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zhanchen Cui
- State
Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130021, P. R.
China
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7
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Bai G, Chen C, Zhao C, Zhou T, Li D, Zhou T, Li W, Lu Y, Cong X, Jia Y, Li S. The chromosome-level genome for Toxicodendron vernicifluum provides crucial insights into Anacardiaceae evolution and urushiol biosynthesis. iScience 2022; 25:104512. [PMID: 35733792 PMCID: PMC9207680 DOI: 10.1016/j.isci.2022.104512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 04/21/2022] [Accepted: 05/27/2022] [Indexed: 12/04/2022] Open
Abstract
The lacquer tree (Toxicodendron vernicifluum (Stokes) F.A. Barkley) is an important tree with economic, industrial, and medicinal values. Here, we generated the reference genome of T. vernicifluum at the chromosome level with 491.93 Mb in size, in which 98.26% of the assembled contigs were anchored onto 15 pseudochromosomes with the scaffold N50 of 32.97 Mb. Comparative genomic analysis revealed the gene families related to urushiol biosynthesis were expanded, contributing to the ecological fitness and biological adaptability of the lacquer tree. We combined multi-omics data to identify genes that encode key enzymes in the T. vernicifluum urushiol and lignin biosynthetic pathways. Furthermore, the unique active metabolites, such as butin and fisetin, in cultivar lacquers were identified by metabolism profiling. Our work would provide crucial insights into metabolite synthesis such as urushiol and lignin, meanwhile offer a basis for further exploration of the cultivation and breeding of T. vernicifluum and other Anacardiaceae members. We provide the first chromosome-level genome for Toxicodendron vernicifluum We explore the phylogenetic position of lacquer tree We identify genes involved in the urushiol and lignin biosynthetic pathways Analysis of the unique active metabolites in cultivar lacquers by LC-MS/MS is reported
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Affiliation(s)
- Guoqing Bai
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Chen Chen
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Chenxi Zhao
- BGI Genomics, BGI-Shenzhen, Shenzhen 518083, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Zhou
- School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Dan Li
- SDIC Biotech Investment Co., Ltd., Shanghai 200082, China
| | - Tianhua Zhou
- College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723001, China
| | - Weimin Li
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Yuan Lu
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Xiaofeng Cong
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Yun Jia
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
| | - Sifeng Li
- Xi’an Botanical Garden of Shaanxi Province, Shaanxi Province Qinling-Bashan Mountains Engineering Research Centre of Conservation and Utilization of Biological Resources, Xi’an 710061, China
- Corresponding author
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8
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Li Q, Chen J, Zhang Y, Chi C, Dong G, Lin J, Chen Q. Superelastic, Antifreezing, Antidrying, and Conductive Organohydrogels for Wearable Strain Sensors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51546-51555. [PMID: 34689543 DOI: 10.1021/acsami.1c16368] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sensors based on conductive hydrogels have received extensive attention in various fields, such as artificial intelligence, electronic skin, and health monitoring. However, the poor resilience and fatigue resistance, icing, and water loss of traditional hydrogels greatly limit their application. Herein, an ionic conductive organohydrogel (PAC-Zn) was prepared for the first time by copolymerization of cardanol and acrylic acid in water/1,3-butanediol as a binary solvent system. A very small amount of cardanol (1% cardanol of total monomers) could not only significantly improve the tensile strength (∼4 times) and toughness (∼3 times) of PAA but also improve its extensibility. Due to the presence of 1,3-butanediol, PAC-Zn showed outstanding tolerance for freezing (-45 °C) and drying (over 85% moisture retention after 15 days of storage in a 37 °C oven). Compared with ethylene glycol and glycerol as antifreeze agents used in organohydrogels, the addition of 1,3-butanediol endowed the organohydrogel with not only similar frost resistance but also better mechanical performance. Besides, PAC-Zn exhibited fast resilience (almost no hysteresis loop) and excellent antifatigue ability. More importantly, a PAC-Zn organohydrogel-based sensor could detect human motion in real time (wrist, elbow, finger, and knee joints), revealing its fast response, good sensitivity, and stable electromechanical repeatability. In conclusion, the multifunctional PAC-Zn organohydrogel is expected to become a potential and promising candidate in the field of strain sensors under a broad range of environmental temperatures.
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Affiliation(s)
- Qinglin Li
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Jiawen Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Yuxia Zhang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Chongyi Chi
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Guofa Dong
- Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou, Fujian 350108, P. R. China
| | - Jianrong Lin
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Qinhui Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
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9
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3-Pentylcatechol, a Non-Allergenic Urushiol Derivative, Displays Anti- Helicobacter pylori Activity In Vivo. Pharmaceuticals (Basel) 2020; 13:ph13110384. [PMID: 33202739 PMCID: PMC7697961 DOI: 10.3390/ph13110384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/19/2022] Open
Abstract
We previously reported that 3-pentylcatechol (PC), a synthetic non-allergenic urushiol derivative, inhibited the growth of Helicobacter pylori in an in vitro assay using nutrient agar and broth. In this study, we aimed to investigate the in vivo antimicrobial activity of PC against H. pylori growing in the stomach mucous membrane. Four-week-old male C57BL/6 mice (n = 4) were orally inoculated with H. pylori Sydney Strain-1 (SS-1) for 8 weeks. Thereafter, the mice received PC (1, 5, and 15 mg/kg) and triple therapy (omeprazole, 0.7 mg/kg; metronidazole, 16.7 mg/kg; clarithromycin, 16.7 mg/kg, reference groups) once daily for 10 days. Infiltration of inflammatory cells in gastric tissue was greater in the H. pylori-infected group compared with the control group and lower in both the triple therapy- and PC-treated groups. In addition, upregulation of cytokine mRNA was reversed after infection, upon administration of triple therapy and PC. Interestingly, PC was more effective than triple therapy at all doses, even at 1/15th the dose of triple therapy. In addition, PC demonstrated synergism with triple therapy, even at low concentrations. The results suggest that PC may be more effective against H. pylori than established antibiotics.
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Smolyaninov IV, Pitikova OV, Korchagina EO, Poddel'sky AI, Fukin GK, Luzhnova SA, Tichkomirov AM, Ponomareva EN, Berberova NT. Catechol thioethers with physiologically active fragments: Electrochemistry, antioxidant and cryoprotective activities. Bioorg Chem 2019; 89:103003. [PMID: 31132599 DOI: 10.1016/j.bioorg.2019.103003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 12/16/2022]
Abstract
A number of asymmetrical thioethers based on 3,5-di-tert-butylcatechol containing sulfur atom bonding with physiologically active groups in the sixth position of aromatic ring have been synthesized and the electrochemical properties, antioxidant, cryoprotective activities of new thioethers have been evaluated. Cyclic voltammetry was used to estimate the oxidation potentials of thioethers in acetonitrile. The electrooxidation of compounds at the first stage leads to the formation of o-benzoquinones. The antioxidant activities of the compounds were determined using 2,2'-diphenyl-1-picrylhydrazyl radical (DPPH) assay, experiments on the oxidative damage of the DNA, the reaction of 2,2'-azobis(2-amidinopropane hydrochloride) (AAPH) induced glutathione depletion (GSH), the process of lipid peroxidation of rat liver (Wistar) homogenates in vitro, and iron(II) chelation test. Compounds 1-9 have greater antioxidant effectiveness than 3,5-di-tert-butylcatechol (CatH2) in all assays. The variation of physiologically active groups at sulfur atom allows to regulate lipophilic properties and antioxidant activity of compounds. Thioethers 3, 4 and 7 demonstrate the combination of radical scavenging, antioxidant activity and iron(II) binding properties. The researched compounds 1-9 were studied as possible cryoprotectants of the media for cryopreservation of the Russian sturgeon sperm. Novel cryoprotective additives in cryomedium reduce significantly the content of membrane-permeating agent (DMSO). A cryoprotective effect of an addition of the catechol thioethers depends on the structure of groups at sulfur atom. The cryoprotective properties of compounds 3, 4 and 7 are caused by combination of catechol fragment, bonded by a thioether linker with a long hydrocarbon chain and a terminal ionizable group or with a biologically relevant acetylcysteine residue.
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Affiliation(s)
- Ivan V Smolyaninov
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia; Toxicology Research Group of Southern Scientific Centre of Russian Academy of Science, 41 Chekhova str., Rostov-on-Don 344006, Russia.
| | - Olga V Pitikova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia
| | - Eugenia O Korchagina
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia
| | - Andrey I Poddel'sky
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, Russia
| | - Georgy K Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, Russia
| | - Svetlana A Luzhnova
- Department of Microbiology and Immunology, Pyatigorsk Medicinal and Pharmaceutical Institute, 11 Kalinina str., Pyatigorsk 357500, Russia
| | - Andrey M Tichkomirov
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia
| | - Elena N Ponomareva
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia; Toxicology Research Group of Southern Scientific Centre of Russian Academy of Science, 41 Chekhova str., Rostov-on-Don 344006, Russia
| | - Nadezhda T Berberova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia
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11
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Qi Z, Wang C, Jiang J, Wu C. Novel C15 Triene Triazole, D-A Derivatives Anti-HepG2, and as HDAC2 Inhibitors: A Synergy Study. Int J Mol Sci 2018; 19:ijms19103184. [PMID: 30332739 PMCID: PMC6214004 DOI: 10.3390/ijms19103184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/18/2018] [Accepted: 10/08/2018] [Indexed: 01/08/2023] Open
Abstract
A series of novel C15 urushiol derivatives were designed by introducing a pechmann structure and F-, Cl-, and Br-nitro substituents with different electronic properties into its alkyl side chain, as well as a triazolyl functional group in its aromatic oxide. Their chemical structures were determined based on the analysis of the NMR (nuclear magnetic resonance) spectroscopic and mass spectrometric data. The results showed that compound 4 exhibited a strong inhibition of the HepG2 cell proliferation (half maximal inhibitory concentration (IC50): 2.833 μM to human hepatocellular carcinoma (HepG2), and 80.905 μM to human normal hepatocytes (LO2)). Furthermore, it had an excellent synergistic effect with levopimaric acid. The nitrogen atom of the triazole ring formed a hydrogen-bonding interaction with Gly103, Gly154, and Tyr308, which made compound 4 bind to histone deacetylase (HDAC)2 more tightly. One triazole ring and His33 formed a π–π stacking effect; the other, whose branches were deep into the pocket, further enhanced the interaction with HDAC2. Meanwhile, compound 4 involved a hydrophobic interaction with the residues Phe210 and Leu276. The hydrophobic interaction and π–π stacking provided powerful van der Waals forces for the compounds.
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Affiliation(s)
- Zhiwen Qi
- Institute of Chemical Industry of Forest Products, China Academy of Forestry, Nanjing 210042, China.
- Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, China.
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chengzhang Wang
- Institute of Chemical Industry of Forest Products, China Academy of Forestry, Nanjing 210042, China.
- Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, China.
| | - Jianxin Jiang
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Caie Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210000, China.
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Smolyaninov I, Pitikova O, Korchagina E, Poddel’sky A, Luzhnova S, Berberova N. Electrochemical behavior and anti/prooxidant activity of thioethers with redox-active catechol moiety. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2264-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Synthesis and Evaluation of C15 Triene Urushiol Derivatives as Potential Anticancer Agents and HDAC2 Inhibitor. Molecules 2018; 23:molecules23051074. [PMID: 29751548 PMCID: PMC6102549 DOI: 10.3390/molecules23051074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/25/2018] [Accepted: 04/27/2018] [Indexed: 01/27/2023] Open
Abstract
A series of C15 triene urushiol derivatives were synthesized and evaluated for their anti-HepG2 aggregation in vitro. The results indicated that all compounds had an effective anti-HepG2 vitality. Compound 1 was a potent inhibitor of HepG2 with IC50 of 7.886 μM and 150 μM against LO2. Moreover, compound 1 increased the apoptosis of HepG2. Compound 1’s thiol sulfur formed hydrogen bonding interactions with Gly154 and Tyr308, respectively, and made it bound more closely to HDAC2. In addition, it also formed hydrophobic interactions with the residues His33, Pro106, Val107, Gly154, Phe155, and His183, and was provided with a strong van der Waals force by the hydrophobic action.
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Qi Z, Wang C, Jiang J. Synergies of urushiol and its pechmann derivative compatible with paclitaxel anti-HepG2 activity. Nat Prod Res 2018. [DOI: 10.1080/14786419.2018.1446013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhiwen Qi
- Institute of Chemical Industry of Forest Products, CAF, Nanjing, China
- Key and Open Laboratory on Forest Chemical Engineering, SFA, Nanjing, China
- College of Material Science and Technology, Beijing Forestry University, Beijing, China
| | - Chengzhang Wang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing, China
- Key and Open Laboratory on Forest Chemical Engineering, SFA, Nanjing, China
| | - Jianxin Jiang
- College of Material Science and Technology, Beijing Forestry University, Beijing, China
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