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Noleto-Dias C, Farag MA, Porzel A, Tavares JF, Wessjohann LA. A multiplex approach of MS, 1D-, and 2D-NMR metabolomics in plant ontogeny: A case study on Clusia minor L. organs (leaf, flower, fruit, and seed). Phytochem Anal 2024; 35:445-468. [PMID: 38069552 DOI: 10.1002/pca.3300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/09/2023] [Indexed: 04/13/2024]
Abstract
INTRODUCTION The genus Clusia L. is mostly recognised for the production of prenylated benzophenones and tocotrienol derivatives. OBJECTIVES The objective of this study was to map metabolome variation within Clusia minor organs at different developmental stages. MATERIAL AND METHODS In total 15 organs/stages (leaf, flower, fruit, and seed) were analysed by UPLC-MS and 1H- and heteronuclear multiple-bond correlation (HMBC)-NMR-based metabolomics. RESULTS This work led to the assignment of 46 metabolites, belonging to organic acids(1), sugars(2) phenolic acids(1), flavonoids(3) prenylated xanthones(1) benzophenones(4) and tocotrienols(2). Multivariate data analyses explained the variability and classification of samples, highlighting chemical markers that discriminate each organ/stage. Leaves were found to be rich in 5-hydroxy-8-methyltocotrienol (8.5 μg/mg f.w.), while flowers were abundant in the polyprenylated benzophenone nemorosone with maximum level detected in the fully mature flower bud (43 μg/mg f.w.). Nemorosone and 5-hydroxy tocotrienoloic acid were isolated from FL6 for full structural characterisation. This is the first report of the NMR assignments of 5-hydroxy tocotrienoloic acid, and its maximum level was detected in the mature fruit at 50 μg/mg f.w. Seeds as typical storage organ were rich in sugars and omega-6 fatty acids. CONCLUSION To the best of our knowledge, this is the first report on a comparative 1D-/2D-NMR approach to assess compositional differences in ontogeny studies compared with LC-MS exemplified by Clusia organs. Results derived from this study provide better understanding of the stages at which maximal production of natural compounds occur and elucidate in which developmental stages the enzymes responsible for the production of such metabolites are preferentially expressed.
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Affiliation(s)
- Clarice Noleto-Dias
- Natural and Synthetic Bioactive Products Graduate Program, Federal University of Paraíba, João Pessoa, PB, Brazil
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Cairo, Egypt
| | - Andrea Porzel
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Josean F Tavares
- Natural and Synthetic Bioactive Products Graduate Program, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
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Jou-Claus S, Rodríguez-Escales P, Martínez-Landa L, Diaz-Cruz MS, Carrera J, Sunyer-Caldú A, Quintana G, Valhondo C. Assessing the Fate of Benzophenone-Type UV Filters and Transformation Products during Soil Aquifer Treatment: The Biofilm Compartment as Bioaccumulator and Biodegrader in Porous Media. Environ Sci Technol 2024; 58:5472-5482. [PMID: 38466321 DOI: 10.1021/acs.est.3c08465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The fate of selected UV filters (UVFs) was investigated in two soil aquifer treatment (SAT) systems, one supplemented with a reactive barrier containing clay and vegetable compost and the other as a traditional SAT reference system. We monitored benzophenone-3 (BP-3) and its transformation products (TPs), including benzophenone-1 (BP-1), 4,4'-dihydroxybenzophenone (4DHB), 4-hydroxybenzophenone (4HB), and 2,2'-dihydroxy-4-methoxybenzophenone (DHMB), along with benzophenone-4 (BP-4) and avobenzone (AVO) in all involved compartments (water, aquifer sediments, and biofilm). The reactive barrier, which enhances biochemical activity and biofilm development, improved the removal of all detected UVFs in water samples. Among monitored UVFs, only 4HB, BP-4, and AVO were detected in sediment and biofilm samples. But the overall retained amounts were several orders of magnitude larger than those dissolved. These amounts were quantitatively reproduced with a specifically developed simple analytical model that consists of a mobile compartment and an immobile compartment. Retention and degradation are restricted to the immobile water compartment, where biofilm absorption was simulated with well-known compound-specific Kow values. The fact that the model reproduced observations, including metabolites detected in the biofilm but not in the (mobile) water samples, supports its validity. The results imply that accumulation ensures significant biodegradation even if the degradation rates are very low and suggest that our experimental findings for UVFs and TPs can be extended to other hydrophobic compounds. Biofilms act as accumulators and biodegraders of hydrophobic compounds.
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Affiliation(s)
- Sònia Jou-Claus
- Dept. of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Associated Unit: Hydrogeology Group (UPC-CSIC), Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
| | - Paula Rodríguez-Escales
- Dept. of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Associated Unit: Hydrogeology Group (UPC-CSIC), Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
| | - Lurdes Martínez-Landa
- Dept. of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Associated Unit: Hydrogeology Group (UPC-CSIC), Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
| | - M Silvia Diaz-Cruz
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
| | - Jesús Carrera
- Associated Unit: Hydrogeology Group (UPC-CSIC), Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
| | - Adrià Sunyer-Caldú
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
- Department of Environmental Science (ACES, Exposure & Effects), Science for Life Laboratory, Stockholm University, Stockholm 106 91, Sweden
| | - Gerard Quintana
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
| | - Cristina Valhondo
- Associated Unit: Hydrogeology Group (UPC-CSIC), Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
- Institute of Environmental Assessment and Water Research Severo Ochoa Excellence Center, Spanish National Research Council (IDAEA-CSIC), Barcelona 08034, Spain
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Deota PT, Parmar HS, Patel GM, Bhatt GJ. Impact of ultraviolet-absorbing 2-hydroxy-4-quaternaryammoniumalkoxy benzophenone motif on photodegradation of disulfoton: a case study. Environ Sci Pollut Res Int 2023; 30:124704-124713. [PMID: 35687284 DOI: 10.1007/s11356-022-21247-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Pesticide deposits post-treatment and before diffusing inside the plants are exposed to sunlight. Many of them degrade into a variety of photoproducts that may be harmful to living beings through accidental ingestion. The addition of ultraviolet light absorbers to the pesticide formulations is an attractive strategy to prevent photodegradation of the pesticides. Water-soluble quaternary ammonium ultraviolet light absorbers (QAUVAs) were synthesized from 2,4-dihydroxy benzophenones (BP-1) and their structures were confirmed by 1H NMR, 13C NMR, UV, and FTIR. A cost-saving approach for the photoprotection of disulfoton insecticide using these QAUVAs is presented. All the four QAUVAs exhibit excellent UV screening effect. The insecticide disulfoton was recovered in much higher amounts (22.27 ~ 25.64% higher than control) when it was irradiated in the presence of QAUVAs in comparison with the amount of recovery of pesticide exposed in absence of them.
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Affiliation(s)
- Pradeep T Deota
- Applied Chemistry Department, Faculty of Technology & Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, 390 001, Gujarat, India.
| | | | - Gautam M Patel
- Department of Industrial Chemistry, Institute of Science and Technology for Advanced Studies and Research (ISTAR), CVM University, 388120, V.V. Nagar, Gujarat, India
| | - Gaurang J Bhatt
- Applied Chemistry Department, Faculty of Technology & Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, 390 001, Gujarat, India
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Umaña E, Solano G, Zamora G, Tamayo-Castillo G. Costa Rican Propolis Chemical Compositions: Nemorosone Found to Be Present in an Exclusive Geographical Zone. Molecules 2023; 28:7081. [PMID: 37894560 PMCID: PMC10609476 DOI: 10.3390/molecules28207081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND The chemistry of Costa Rican propolis from Apis mellifera remains underexplored despite its potential applications. This study identified its chemical composition, linking chemotypes to antioxidant potential. METHODS Proton nuclear magnetic resonance (1H NMR) spectra were obtained for 119 propolis extracts and analyzed using multivariate analyses. In parallel, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay was used to assess antioxidant activity. A generalized linear regression model (GLM) correlated this with its chemical profiles and geographical origin. Chromatographic methods were used to isolate active and inactive compounds, which were identified using nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). RESULTS Principal component analysis (PCA) revealed three chemical profile groups for the 119 propolis extracts, explaining 73% of the total variance with two components. Radical scavenging activity was found to correlate with chemical composition. Isolation yielded n-coniferyl benzoate in type I (EC50 = 190 µg/mL, ORAC = 0.60 µmol TE/µmol) and nemorosone in type II (EC50 = 300 µg/mL, ORAC = 0.7 µmol TE/µmol). Type III was represented in terpene-like components, which exhibited lower antioxidant activity. CONCLUSIONS This study categorizes Costa Rican propolis into three chemical types and identifies two key components linked to antioxidant activity. Notably, nemorosone, a valuable natural product, was found to be highly concentrated in a particular region of Costa Rica.
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Affiliation(s)
- Eduardo Umaña
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, San José 11501, Costa Rica; (E.U.); (G.S.)
- Centro de Investigaciones Apícolas Tropicales (CINAT), Universidad Nacional, Heredia 3000, Costa Rica;
| | - Godofredo Solano
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, San José 11501, Costa Rica; (E.U.); (G.S.)
| | - Gabriel Zamora
- Centro de Investigaciones Apícolas Tropicales (CINAT), Universidad Nacional, Heredia 3000, Costa Rica;
| | - Giselle Tamayo-Castillo
- Centro de Investigaciones en Productos Naturales (CIPRONA), Universidad de Costa Rica, San José 11501, Costa Rica; (E.U.); (G.S.)
- Escuela de Química, Universidad de Costa Rica, San José 11501, Costa Rica
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Ji X, Liang J, Liu J, Shen J, Li Y, Wang Y, Jing C, Mabury SA, Liu R. Occurrence, Fate, Human Exposure, and Toxicity of Commercial Photoinitiators. Environ Sci Technol 2023; 57:11704-11717. [PMID: 37515552 DOI: 10.1021/acs.est.3c02857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
Abstract
Photoinitiators (PIs) are a family of anthropogenic chemicals used in polymerization systems that generate active substances to initiate polymerization reactions under certain radiations. Although polymerization is considered a green method, its wide application in various commercial products, such as UV-curable inks, paints, and varnishes, has led to ubiquitous environmental issues caused by PIs. In this study, we present an overview of the current knowledge on the environmental occurrence, human exposure, and toxicity of PIs and provide suggestions for future research based on numerous available studies. The residual concentrations of PIs in commercial products, such as food packaging materials, are at microgram per gram levels. The migration of PIs from food packaging materials to foodstuffs has been confirmed by more than 100 reports of food contamination caused by PIs. Furthermore, more than 20 PIs have been detected in water, sediment, sewage sludge, and indoor dust collected from Asia, the United States, and Europe. Human internal exposure was also confirmed by the detection of PIs in serum. In addition, PIs were present in human breast milk, indicating that breastfeeding is an exposure pathway for infants. Among the most available studies, benzophenone is the dominant congener detected in the environment and humans. Toxicity studies of PIs reveal multiple toxic end points, such as carcinogenicity and endocrine-disrupting effects. Future investigations should focus on synergistic/antagonistic toxicity effects caused by PIs coexposure and metabolism/transformation pathways of newly identified PIs. Furthermore, future research should aim to develop "greener" PIs with high efficiency, low migration, and low toxicity.
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Affiliation(s)
- Xiaomeng Ji
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jiefeng Liang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jiale Liu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jie Shen
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yiling Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Yingjun Wang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Chuanyong Jing
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Scott A Mabury
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto M5S 3H6, Ontario, Canada
| | - Runzeng Liu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
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Cuesta-Rubio O, Monzote L, Fernández-Acosta R, Pardo-Andreu GL, Rastrelli L. A review of nemorosone: Chemistry and biological properties. Phytochemistry 2023; 210:113674. [PMID: 37044362 DOI: 10.1016/j.phytochem.2023.113674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Nemorosone is a bicyclic polyprenylated acylphloroglucinol derivative originally isolated from Clusia spp. and it can be obtained through chemical synthesis employing different synthetic strategies. Since its discovery, it has attracted great attention both from a biological and chemical viewpoint. In the present article, we attempted to review various chemical and biological topics around nemorosone, with an emphasis on its antiproliferative activities. For this purpose, relevant data was collected from different scientific databases including Google Scholar, PubMed, Scopus and ISI Web of Knowledge. This natural compound has shown activity against several types of malignancies such as leukemia, human colorectal, pancreatic, and breast cancer because it modulates multiple molecular pathways. Nemorosone has both cytostatic and cytotoxic activity and it also seems to induce apoptosis and ferroptosis. Additionally, it has antimicrobial capabilities against Gram-positive bacteria and parasites belonging to genus Leishmania. Its promising antiproliferative pre-clinical effects deserve further attention for anticancer and anti-parasitic drug development and translation to the clinic.
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Affiliation(s)
- Osmany Cuesta-Rubio
- Universidad Técnica de Machala, Facultad de Ciencias Químicas y de la Salud, Ave. Panamericana km 5½, 070101, Machala, Ecuador.
| | - Lianet Monzote
- Departamento de Parasitología, Instituto de Medicina Tropical Pedro Kourí, Autopista Novia del Mediodía Km 6 1/2, 11400, La Habana, Cuba.
| | - Roberto Fernández-Acosta
- Department of Pharmacy, Institute of Pharmaceutical and Food Sciences, University of Havana, 222 St. # 2317, La Coronela, 13600, Havana, Cuba.
| | - Gilberto Lázaro Pardo-Andreu
- Center for Research and Biological Evaluation, Institute of Pharmaceutical and Food Sciences, University of Havana, 222 St. # 2317, 13600, Havana, Cuba.
| | - Luca Rastrelli
- Universitá degli Studi di Salerno, Dipartimento di Farmacia, Via Giovanni Paolo II, 84084, Fisciano, SA, Italy; NBFC, National Biodiversity Future Center, Palermo, 90133, Italy.
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Ma J, Yang B, Hu X, Gao Y, Qin C. The binding mechanism of benzophenone-type UV filters and human serum albumin: The role of site, number, and type of functional group substitutions. Environ Pollut 2023; 324:121342. [PMID: 36828352 DOI: 10.1016/j.envpol.2023.121342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Benzophenone-type UV filters (BPs) are common in natural aquatic environments. They can cause endocrine disruption or other adverse effects once they enter the human body via the food chain or drinking water. The primary cause of BPs accumulation and toxicity is the transport of BPs into the human body. Functional group substitutions can have a significant impact on the interactions of BPs and transporters, resulting in a variety of impact effects. Therefore, we explored the interaction between human serum albumin (HSA, a typical transporter) and ten typical BPs [benzophenone (BP1), 2-hydroxybenzophenone (BP2), 4-hydroxybenzophenone (BP3), 2,2'-dihydroxybenzophenone (BP4), 2,4-dihydroxybenzophenone (BP5), 4,4'-dihydroxybenzophenone (BP6), 2,4,4'-trihydroxybenzophenone (BP7), 2,2',4,4'-tetrahydroxybenzophenone (BP8), 2-hydroxy-4-methoxybenzophenone (BP9), and 2,2'-dihydroxy-4-methoxybenzophenone (BP10)] to study the role of functional group substitutions in binding. The results showed that BPs could bind to HSA at site 2, with binding constants ranging from 2.01 × 103 to 4.57 × 105 L/mol. Compared to BP1, hydroxyl and methoxy substitutions enhanced the BPs-HSA binding. The combined effect of the number and site of hydroxyl substitution at BPs determined the binding strength between BPs and HSA. It was more accessible to bind HSA when BPs were substituted with para-hydroxyl (4-hydroxyl) groups than with ortho-hydroxyl (2-hydroxyl) groups. Moreover, the additional para-methoxy (4-methoxy) group increased the BP-HSA binding strength by approximately 47 times under the same hydroxyl substitution conditions. Theoretical calculations revealed that functional group substitutions increased the intermolecular binding force by increasing the negative electrostatic potential surface area of BPs, which significantly increased the electrostatic and dispersion forces between the BPs and HSA. This BPs-HSA binding decreased the α-helix of HSA and influenced the ratio of other secondary structures, including β-sheet, β-turn, and random coil of HSA. This study provides a theoretical and experimental foundation for understanding the human health risks associated with BPs.
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Affiliation(s)
- Junchao Ma
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Bing Yang
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China.
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Wang X, Feng J, Wu R, Tan J, Huang Q, Phang Y, Zhang L, Fu W, Xu H, Zheng C. Garcinol and its analogues: Synthesis, cytotoxic activity and mechanistic investigation. Bioorg Chem 2023; 133:106389. [PMID: 36731298 DOI: 10.1016/j.bioorg.2023.106389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
Garcinol is a polyisoprenylated benzophenone isolated from Garcinia. It has been reported to have a variety of intriguing biological effects, including anticancer, anti-inflammatory, and antioxidant capabilities. The purpose of this research is to thoroughly evaluate garcinol and a series of its analogues in terms of synthesis, structural diversity, biosynthesis, and potential for preventing carcinoma cell proliferation. Garcinopicrobenzophenone and eugeniaphenone, which contain a unique cyclobutyl unit at C-5, were initially synthesized using the procedures utilized in the synthesis of garcinol. All the natural analogs of garcinol were produced at completion of the synthesis, and their structures and absolute configurations were clarified. Based on the synthesis, a possible biogenetic synthesis pathway towards cambogin, 13,14-didehydroxyisogarcinol via O-cyclization, and garcinopicrobenzophenone or eugeniaphenone via C-cyclization was proposed. The cytotoxicity of polyisoprenylated benzophenones produced in our group was tested, and the structure-activity relationship was summarized. The mechanism by which garcinol, cambogin, and 21' induce apoptosis was studied. Cambogin and 21' were shown to have a greater capacity to cause apoptosis in pancreatic cancer BXPC3 cells, and the suppression of BXPC3 cells by 21' might be attributed to the target of STAT3 signaling. Garcinol could cause pyroptosis and apoptosis in pancreatic cancer cells at the same time, which was the first time that garcinol was identified as a possible chemotherapeutic agent that could significantly promote pyroptosis in cancer cells.
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Affiliation(s)
- Xueying Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiling Feng
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rong Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiaqi Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qing Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yeelin Phang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wenwei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hongxi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Carstensen L, Beil S, Schwab E, Banke S, Börnick H, Stolte S. Primary and ultimate degradation of benzophenone-type UV filters under different environmental conditions and the underlying structure-biodegradability relationships. J Hazard Mater 2023; 446:130634. [PMID: 36599278 DOI: 10.1016/j.jhazmat.2022.130634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Ten common benzophenone-based UV filters (BPs), sharing the same basic structure and differing only in their substituents, were investigated with respect to their primary and ultimate biodegradability. This study was carried out in order to gain deeper insights into the relationship between structure and biodegradability. The primary biodegradation of the selected BPs was studied in river water at environmentally relevant concentrations (1 µg/L) while varying specific, crucial environmental conditions (aerobic, suboxic, supplementation of nutrients). For this purpose, both batch and column degradation tests were performed, which allowed a systematic study of the effects. Subsequently, the ultimate biodegradation, i.e. the potential to achieve full mineralization of BPs, was examined according to OECD guideline 301 F. The results indicate that mineralization is limited to derivatives in which both aromatic rings contain substituents. This hypothesis was supported by docking simulations showing systematic differences in the orientation of BPs within the active site of the cytochrome P450 enzyme. These differences in orientation correspond to the substitution pattern of the BPs. This study provides valuable insights for assessing the environmental hazards of this class of trace organic compounds.
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Affiliation(s)
- Lale Carstensen
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Stephan Beil
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Ekaterina Schwab
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Sophie Banke
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Hilmar Börnick
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Stefan Stolte
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany.
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Yang F, Wei Z, Long C, Long L. Toxicological effects of oxybenzone on the growth and bacterial composition of Symbiodiniaceae. Environ Pollut 2023; 317:120807. [PMID: 36464119 DOI: 10.1016/j.envpol.2022.120807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Oxybenzone, a common ultraviolet (UV) filter, is a growing environmental concern due to its ecotoxicological effects. However, the responses of Symbiodiniaceae and their bacterial communities to oxybenzone are largely unknown. In this study, the effects of oxybenzone on Effrenium voratum and Cladocopium goreaui were investigated. The results revealed that sensitivity of Symbiodiniaceae to oxybenzone was species-dependent. 50 μg L-1 of oxybenzone significantly impacted the cell density of C. goreaui, causing a 36.73% decrease. When oxybenzone concentration increased to 500 μg L-1 and 5000 μg L-1, cell division was completely suppressed; meanwhile, chl-a content declined to zero. Compared to C. goreaui, E. voratum had higher resistance to oxybenzone. There was no significant difference in cell density between 50 μg L-1 group and control group. At higher dosage of oxybenzone (500 μg L-1 and 5000 μg L-1), the cell density declined 32.02% and 45.45% compared to the control group, respectively. Additionally, we revealed that the diversity and structure of bacterial community were affected by oxybenzone. Briefly, 500 μg L-1 and 5000 μg L-1 of oxybenzone altered the diversity of bacterial community in C. goreau. Furthermore, the relative abundances of Costertonia, Roseitalea, Rhodopirellula, and Roseobacter were negatively affected by oxybenzone ranging 50 μg L-1 to 5000 μg L-1. Compare to C. goreaui, the bacterial community composition associated with E. voratum was more stable. As revealed by KEGG pathway analysis, oxybenzone affected energy metabolism and inhibited the metabolism of cofactors and vitamins in C. goreaui, while 5000 μg L-1 of oxybenzone significantly altered the carbohydrate metabolism, membrane transport and amino acid metabolism in E. voratum. The changes of bacterial composition may contribute to the variation in algal growth. These results indicated that oxybenzone pollution could injury Symbiodiniaceae, even threaten coral reef ecosystems.
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Affiliation(s)
- Fangfang Yang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China
| | - Zhangliang Wei
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China
| | - Chao Long
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Lijuan Long
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China.
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11
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Grzyb K, Frański R, Pedzinski T. Sensitized photoreduction of selected benzophenones. Mass spectrometry studies of radical cross-coupling reactions. J Photochem Photobiol B 2022; 234:112536. [PMID: 35939915 DOI: 10.1016/j.jphotobiol.2022.112536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/11/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The hydrogen atom transfer reaction (HAT) between selected benzophenones (benzophenone BP, 3-carboxybenzophenone 3CB, and 4-carboxybenzophenone 4CB) and 2-propanol was reinvestigated focusing on stable product analysis. As expected, the primary species of these HAT's are the respective diphenyl and dimethyl ketyl radicals that eventually undergo several radical coupling reactions leading to stable photoproducts. However, the mechanisms of these free radical reactions remain unclear and open to question. In this report, we focus on the detailed analysis of the stable photoproducts of these reactions using liquid chromatography coupled with high-resolution mass spectrometry (LC-ESI-QTOF-MS/MS). Products of photopinacolization (benzpinacol and two diastereoisomers of 4CB and 3CB dimers) and isomeric radical cross-coupling adducts of respective diphenyl and dimethyl ketyl radicals were separated chromatographically, and their structures were determined by high-resolution MS/MS, and the mechanisms of the reactions are discussed.
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Affiliation(s)
- Katarzyna Grzyb
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Tomasz Pedzinski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland.
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12
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Ma J, Qin C, Waigi MG, Gao Y, Hu X, Mosa A, Ling W. Functional group substitutions influence the binding of benzophenone-type UV filters with DNA. Chemosphere 2022; 299:134490. [PMID: 35385766 DOI: 10.1016/j.chemosphere.2022.134490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/26/2022] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Abstract
As a class of possible carcinogens, benzophenone-type UV filters (BPs) widely exist in natural environments and organisms. The crucial step of the carcinogenic process induced by cancerous toxins is binding with DNA to form adducts. Here, the binding of 10 typical BPs, i.e., benzophenone (BP1), 2-hydroxyl benzophenone (BP2), 4-hydroxyl benzophenone (BP3), 2,2'-dihydroxyl benzophenone (BP4), 2,4-dihydroxyl benzophenone (BP5), 4,4'-dihydroxyl benzophenone (BP6), 2,4,4'-trihydroxyl benzophenone (BP7), 2,2',4,4'-tetrahydroxyl benzophenone (BP8), 2-hydroxyl-4-methoxyl benzophenone (BP9), and 2,2'-dihydroxyl-4-methoxyl benzophenone (BP10), with DNA was tested via fluorescence quenching experiments. Only hydroxyl group-substituted BPs could bind to DNA by groove binding mode, and the quenching constants were 0.93 × 103-5.89 × 103 L/mol. Substituted BPs were preferentially bound to thymine. Circular dichroism analysis confirmed that BPs could affect DNA base stacking but could not transform its B-form. Based on molecular electrostatic surface potential analyses, molecular dynamics simulations, and energy decomposition calculations, it could be found that the site and number of hydroxyl substitution changed the molecular polarity of BPs, thereby affecting the number and strength of hydrogen bonds between BPs and DNA. The hydroxyl substitution at site 2 was more conducive to binding than at site 4. This study is beneficial in comprehending the carcinogenic mechanisms of BPs.
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Affiliation(s)
- Junchao Ma
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Michael Gatheru Waigi
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Ahmed Mosa
- Soils Department, Faculty of Agriculture, Mansoura University, 35516, Mansoura, Egypt
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China.
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13
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Jin Y, Wang Y, Chen Y, Han T, Chen Y, Wang C. Enhanced Antibacterial Ability and Bioactivity of Polyetherketoneketone Modified with LL-37. Langmuir 2022; 38:4578-4588. [PMID: 35380840 DOI: 10.1021/acs.langmuir.1c03319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polyetherketoneketone (PEKK) is considered to be a potential substitute material for metal bone implants because of its advantageous biocompatibility, chemical stability, and mechanical properties, but clinical application has been severely restricted due to PEKK's lack of antibacterial ability and biological activity. In this study, LL-37, a natural human antimicrobial peptide, was successfully modified on the PEKK surface with polydopamine as the intermediate layer and released continuously for more than 6 days. The results of the MTT assay, colony counts, and Live/Dead staining demonstrated that compared to unmodified PEKK, the LL-37-modified PEKK significantly inhibited the adhesion, vitality, and bacterial biofilm growth of Staphylococcus aureus and Escherichia coli in a concentration-dependent way. Furthermore, the LL-37-modified PEKK enhanced biocompatibility (cell adhesion and viability) and promoted osteogenic differentiation of human umbilical cord Wharton's jelly-derived mesenchymal stem cells. Our data suggested that LL-37-modified PEKK might be a promising material for use in orthopedic implants.
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Affiliation(s)
- Yabing Jin
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Yijin Wang
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Yuhong Chen
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Tianlei Han
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Yiyi Chen
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Chen Wang
- Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
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14
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Munsimbwe L, Suganuma K, Ishikawa Y, Choongo K, Kikuchi T, Shirakura I, Murata T. Benzophenone Glucosides and B-Type Proanthocyanidin Dimers from Zambian Cassia abbreviata and Their Trypanocidal Activities. J Nat Prod 2022; 85:91-104. [PMID: 34965114 DOI: 10.1021/acs.jnatprod.1c00738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two benzophenone glucosides (1 and 2), five flavan-3-ol dimers (5-9), and 17 known compounds (3, 4, and 10-24) were identified from the bark extract of Cassia abbreviata. The chemical structures display two points of interest. First, as an unusual characteristic feature of the 1H NMR spectra of 1 and 2, the signals for the protons on glucosidic carbons C-2 are shielded as compared to those generally observed for glucosyl moieties. The geometrically optimized 3D structures derived from conformational analysis and density functional theory (DFT) calculations revealed that this shielding effect originates from intramolecular hydrogen bonds in 1 and 2. Additionally, 3-15 were identified as dimeric B-type proanthocyanidins, which have 2R,3S-absolute-configured C-rings and C-4-C-8″ linkages, as evidenced by X-ray crystallography and by NMR and ECD spectroscopy. These results suggest the structure-determining procedures for some reported dimers need to be reconsidered. The trypanocidal activities of the isolated compounds against Trypanosoma brucei brucei, T. b. gambiense, T. b. rhodesiense, T. congolense, and T. evansi were evaluated, and the active compounds were identified.
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Affiliation(s)
- Linous Munsimbwe
- Department of Veterinary Services, Ministry of Fisheries and Livestock, P.O. Box 50060, Lusaka 10101, Zambia
| | - Keisuke Suganuma
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Yoshinobu Ishikawa
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yoko-hama 244-0806, Japan
| | - Kennedy Choongo
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka 10101, Zambia
- School of Animal and Veterinary Sciences, College of Agriculture, Fisheries and Forestry, Fiji National University, Koronivia Campus, Suva, Fiji
| | - Takashi Kikuchi
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo 196-8666, Japan
| | - Izumi Shirakura
- Division of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
| | - Toshihiro Murata
- Division of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
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15
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Hu CC, Kumar SR, Vi TTT, Huang YT, Chen DW, Lue SJ. Facilitating GL13K Peptide Grafting on Polyetheretherketone via 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide: Surface Properties and Antibacterial Activity. Int J Mol Sci 2021; 23:ijms23010359. [PMID: 35008782 PMCID: PMC8745129 DOI: 10.3390/ijms23010359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/16/2021] [Accepted: 12/27/2021] [Indexed: 02/07/2023] Open
Abstract
In the present work, the antimicrobial peptide (AMP) of GL13K was successfully coated onto a polyetheretherketone (PEEK) substrate to investigate its antibacterial activities against Staphylococcus aureus (S. aureus) bacteria. To improve the coating efficiency, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) was mixed with a GL13K solution and coated on the PEEK surface for comparison. Both energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) data confirmed 30% greater peptide coating on PEEK/GL13K-EDC than PEEK without EDC treatment. The GL13K graft levels are depicted in the micrograms per square centimeter range. The PEEK/GL13K-EDC sample showed a smoother and lower roughness (Rq of 0.530 µm) than the PEEK/GL13K (0.634 µm) and PEEK (0.697 µm) samples. The surface of the PEEK/GL13K-EDC was more hydrophilic (with a water contact angle of 24°) than the PEEK/GL13K (40°) and pure PEEK (89°) samples. The pure PEEK disc did not exhibit any inhibition zone against S. aureus. After peptide coating, the samples demonstrated significant zones of inhibition: 28 mm and 25 mm for the PEEK/GL13K-EDC and PEEK/GL13K samples, respectively. The bacteria-challenged PEEK sample showed numerous bacteria clusters, whereas PEEK/GL13K contained a little bacteria and PEEK/GL13K-EDC had no bacterial attachment. The results confirm that the GL13K peptide coating was able to induce antibacterial and biofilm-inhibitory effects. To the best of our knowledge, this is the first report of successful GL13K peptide grafting on a PEEK substrate via EDC coupling. The present work illustrates a facile and promising coating technique for a polymeric surface to provide bactericidal activity and biofilm resistance to medical implantable devices.
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Affiliation(s)
- Chih-Chien Hu
- Division of Join Reconstruction, Department of Orthopedics, Chang Gung Medical Center at Linkou, Guishan District, Taoyuan City 333, Taiwan;
| | - Selvaraj Rajesh Kumar
- Department of Chemical and Materials Engineering, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan;
| | - Truong Thi Tuong Vi
- Division of Pediatric Gastroenterology and Hepatology, Department of Pediatrics, Chang Gung Memorial Hospital, Guishan District, Taoyuan City 333, Taiwan;
| | - Yu-Tzu Huang
- Department of Chemical Engineering, Chung Yuan Christian University, Zhongli, Taoyuan City 320, Taiwan;
- R&D Center for Membrane Technology and Research Center for Circular Economy, Chung Yuan Christian University, Zhongli, Taoyuan City 320, Taiwan
| | - Dave W. Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung City 204, Taiwan;
| | - Shingjiang Jessie Lue
- Division of Join Reconstruction, Department of Orthopedics, Chang Gung Medical Center at Linkou, Guishan District, Taoyuan City 333, Taiwan;
- Department of Chemical and Materials Engineering, Chang Gung University, Guishan District, Taoyuan City 333, Taiwan;
- Department of Safety, Health and Environment Engineering, Ming Chi University of Technology, Taishan District, New Taipei City 243, Taiwan
- Correspondence: ; Tel.: +88-63-2118800 (ext. 5489); Fax: +88-63-2118700
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16
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Li N, Bai J, Wang W, Liang X, Zhang W, Li W, Lu L, Xiao L, Xu Y, Wang Z, Zhu C, Zhou J, Geng D. Facile and Versatile Surface Functional Polyetheretherketone with Enhanced Bacteriostasis and Osseointegrative Capability for Implant Application. ACS Appl Mater Interfaces 2021; 13:59731-59746. [PMID: 34886671 DOI: 10.1021/acsami.1c19834] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Implant-associated infections and inadequate osseointegration are two challenges of implant materials in orthopedics. In this study, a lithium-ion-loaded (Li+)/mussel-inspired antimicrobial peptide (AMP) designed to improve the osseointegration and inhibit bacterial infections effectively is prepared on a polyetheretherketone (PEEK) biomaterial surface through the combination of hydrothermal treatment and mussel-inspired chemistry. The results illustrate that the multifunctional PEEK material demonstrated a great inhibitory effect on Escherichia coli and Staphylococcus aureus, which was attributed to irreversible bacterial membrane damage. In addition, the multifunctional PEEK can simultaneously upregulate the expression of osteogenesis-associated genes/proteins via the Wnt/β-catenin signaling pathway. Furthermore, an in vivo assay of an infection model revealed that the multifunctional PEEK implants killed bacteria with an efficiency of 95.03%. More importantly, the multifunctional PEEK implants accelerated the implant-bone interface osseointegration compared with pure PEEK implants in the noninfection model. Overall, this work provides a promising strategy for improving orthopedic implant materials with ideal osseointegration and infection prevention simultaneously, which may have broad application clinical prospects.
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Affiliation(s)
- Ning Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of Science and Technology of China, Anhui Provincial Hospital, Heifei, Anhui 230001, China
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Wei Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Xiaolong Liang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Wei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Wenming Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Liang Lu
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of Science and Technology of China, Anhui Provincial Hospital, Heifei, Anhui 230001, China
| | - Long Xiao
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu 215000, China
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Zhirong Wang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu 215000, China
| | - Chen Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of Science and Technology of China, Anhui Provincial Hospital, Heifei, Anhui 230001, China
| | - Jun Zhou
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
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Wejnerowska G, Narloch I. Determination of Benzophenones in Water and Cosmetics Samples: A Comparison of Solid-Phase Extraction and Microextraction by Packed Sorbent Methods. Molecules 2021; 26:molecules26226896. [PMID: 34833988 PMCID: PMC8621114 DOI: 10.3390/molecules26226896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/09/2021] [Accepted: 11/14/2021] [Indexed: 11/16/2022] Open
Abstract
Benzophenones (BPs) are extensively used in a wide variety of cosmetic products and other materials (e.g., textiles or plastics) to avoid damaging effects of UV radiation. In the present work, we compared two extraction methods for the determination of BPs, namely, 2,4-dihydroxybenzophenone (BP-1), 2-hydroxy-4-methoxybenzophenone (BP-3) and 2,2-dihydroxy-4-methoxybenzophenone (BP-8), in water and cosmetics samples. The following extraction methods were used for the research: solid-phase extraction (SPE) and microextraction by packed sorbent (MEPS), whereas analysis was performed by gas chromatography with mass spectrometric detection. A comparison between the methods indicates that the MEPS technique(s) can be reliably used for analysis of BPs (sunscreen residue) in water samples and cosmetic samples with satisfactory results. This microextraction technique is cheap, easy, quick to implement, and consumes small amounts of solvents. On the other hand, the main advantage of the SPE method are low detection limits for the determination of BPs in water samples, i.e., from 0.034 to 0.067 µg L−1, while, for the MEPS method, LODs were at the level of 1.8–3.2 µg L−1. For both methods, the recoveries of BPs were 96–107% and 44–70% for water and cosmetics samples, respectively. The presented methods are suitable for use in cosmetics quality control and environmental pollution assessment.
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18
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Xiao T, Fan L, Liu R, Huang X, Wang S, Xiao L, Pang Y, Li D, Liu J, Min Y. Fabrication of Dexamethasone-Loaded Dual-Metal-Organic Frameworks on Polyetheretherketone Implants with Bacteriostasis and Angiogenesis Properties for Promoting Bone Regeneration. ACS Appl Mater Interfaces 2021; 13:50836-50850. [PMID: 34689546 DOI: 10.1021/acsami.1c18088] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Polyetheretherketone (PEEK) is a biocompatible polymer, but its clinical application is largely limited due to its inert surface. To solve this problem, a multifunctional PEEK implant is urgently fabricated. In this work, a dual-metal-organic framework (Zn-Mg-MOF74) coating is bonded to PEEK using a mussel-inspired polydopamine interlayer to prepare the coating, and then, dexamethasone (DEX) is loaded on the coating surface. The PEEK surface with the multifunctional coating provides superior hydrophilicity and favorable stability and forms an alkaline microenvironment when Mg2+, Zn2+, 2,5-dihydroxyterephthalic acid, and DEX are released due to the coating degradation. In vitro results showed that the multifunctional coating has strong antibacterial ability against both Escherichia coli and Staphylococcus aureus; it also improves human umbilical vein endothelial cell angiogenic ability and enhances rat bone marrow mesenchymal stem cell osteogenic differentiation activity. Furthermore, the in vivo rat subcutaneous infection model, chicken chorioallantoic membrane model, and rat femoral drilling model verify that the PEEK implant coated with the multifunctional coating has strong antibacterial and angiogenic ability and promotes the formation of new bone around the implant with a stronger bone-implant interface. Our findings indicate that DEX loaded on the Zn-Mg-MOF74 coating-modified PEEK implant with bacteriostasis, angiogenesis, and osteogenesis properties has great clinical application potential as bone graft materials.
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Affiliation(s)
- Tianhua Xiao
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Lei Fan
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Rongtao Liu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Xingwen Huang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Shihuan Wang
- Child Developmental & Behavioral Center, Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou 510630, China
| | - Liangang Xiao
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yiyu Pang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Da Li
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jia Liu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yonggang Min
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
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19
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Guo C, Lu R, Wang X, Chen S. Antibacterial activity, bio-compatibility and osteogenic differentiation of graphene oxide coating on 3D-network poly-ether-ether-ketone for orthopaedic implants. J Mater Sci Mater Med 2021; 32:135. [PMID: 34704134 PMCID: PMC8550550 DOI: 10.1007/s10856-021-06614-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/03/2021] [Indexed: 05/05/2023]
Abstract
Poly-ether-ether-ketone (PEEK) has attracted increasing attention as a promising orthopaedic implant material owing to its excellent mechanical properties and biocompatibility. However, its antibacterial properties must be improved as an implant material. In this study, PEEK was sulfonated to obtain a porous surface, and graphene oxide (GO) was deposited to form a coating with antibacterial activity and biocompatibility. After PEEK was sulfonated for different durations, GO was deposited on the surface to prepare the coating (SPEEK-GO), which was then characterised using scanning electron microscopy (SEM), Raman spectroscopy, and contact angle measurements. The in vitro study included antimicrobial and cellular tests. The results showed that the PEEK sulfonated using a 10-min treatment exhibited a uniform porous structure and provided a better basal surface for the deposition of GO. The SPEEK-GO coating displayed strong antibacterial activity against two common dental pathogens. It exhibited good adhesion and proliferation of MC3T3-E1. Moreover, it showed osteogenic differentiation as bone implant material.
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Affiliation(s)
- Cui Guo
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tiantan Xili No.4, Beijing, 100050, People's Republic of China
| | - Ran Lu
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tiantan Xili No.4, Beijing, 100050, People's Republic of China
| | - Xin Wang
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tiantan Xili No.4, Beijing, 100050, People's Republic of China
| | - Su Chen
- Laboratory of Biomaterials and Biomechanics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tiantan Xili No.4, Beijing, 100050, People's Republic of China.
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20
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Zhu C, He M, Sun D, Huang Y, Huang L, Du M, Wang J, Wang J, Li Z, Hu B, Song Y, Li Y, Feng G, Liu L, Zhang L. 3D-Printed Multifunctional Polyetheretherketone Bone Scaffold for Multimodal Treatment of Osteosarcoma and Osteomyelitis. ACS Appl Mater Interfaces 2021; 13:47327-47340. [PMID: 34587454 DOI: 10.1021/acsami.1c10898] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this work, we developed the first 3D-printed polyetheretherketone (PEEK)-based bone scaffold with multi-functions targeting challenging bone diseases such as osteosarcoma and osteomyelitis. A 3D-printed PEEK/graphene nanocomposite scaffold was deposited with a drug-laden (antibiotics and/or anti-cancer drugs) hydroxyapatite coating. The graphene nanosheets within the scaffold served as effective photothermal agents that endowed the scaffold with on-demand photothermal conversion function under near-infrared laser irradiation. The bioactive hydroxyapatite coating significantly boosted the stem cell proliferation in vitro and promoted new bone growth in vivo. The presence of antibiotics and anti-cancer drugs enabled eradication of drug-resistant bacteria and ablation of osteosarcoma cancer cells, the treatment efficacy of which can be further enhanced by on-demand laser-induced heating. The promising results demonstrate the strong potential of our multi-functional scaffold in applications such as bone defect repair and multimodal treatment of osteosarcoma and osteomyelitis.
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Affiliation(s)
- Ce Zhu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
- Department of Spine Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Miaomiao He
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Dan Sun
- Advanced Composite Research Group, School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT9 5AH, U.K
| | - Yong Huang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Leizhen Huang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Meixuan Du
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Jingcheng Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Juehan Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Zhongyang Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Bowen Hu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Yueming Song
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Yubao Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Ganjun Feng
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Limin Liu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Li Zhang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
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21
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Wang H, Fu X, Shi J, Li L, Sun J, Zhang X, Han Q, Deng Y, Gan X. Nutrient Element Decorated Polyetheretherketone Implants Steer Mitochondrial Dynamics for Boosted Diabetic Osseointegration. Adv Sci (Weinh) 2021; 8:e2101778. [PMID: 34396715 PMCID: PMC8529468 DOI: 10.1002/advs.202101778] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/29/2021] [Indexed: 02/05/2023]
Abstract
As a chronic metabolic disease, diabetes mellitus (DM) creates a hyperglycemic micromilieu around implants, resulting inthe high complication and failure rate of implantation because of mitochondrial dysfunction in hyperglycemia. To address the daunting issue, the authors innovatively devised and developed mitochondria-targeted orthopedic implants consisted of nutrient element coatings and polyetheretherketone (PEEK). Dual nutrient elements, in the modality of ZnO and Sr(OH)2 , are assembled onto the sulfonated PEEK surface (Zn&Sr-SPEEK). The results indicate the synergistic liberation of Zn2+ and Sr2+ from coating massacres pathogenic bacteria and dramatically facilitates cyto-activity of osteoblasts upon the hyperglycemic niche. Intriguingly, Zn&Sr-SPEEK implants are demonstrated to have a robust ability to recuperate hyperglycemia-induced mitochondrial dynamic disequilibrium and dysfunction by means of Dynamin-related protein 1 (Drp1) gene down-regulation, mitochondrial membrane potential (MMP) resurgence, and reactive oxygen species (ROS) elimination, ultimately enhancing osteogenicity of osteoblasts. In vivo evaluations utilizing diabetic rat femoral/tibia defect model at 4 and 8 weeks further confirm that nutrient element coatings substantially augment bone remodeling and osseointegration. Altogether, this study not only reveals the importance of Zn2+ and Sr2+ modulation on mitochondrial dynamics that contributes to bone formation and osseointegration, but also provides a novel orthopedic implant for diabetic patients with mitochondrial modulation capability.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
| | - Xinliang Fu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
| | - Jiacheng Shi
- School of Chemical EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610065China
| | - Limei Li
- Science and Technology Achievement Incubation CenterKunming Medical UniversityKunming650500China
| | - Jiyu Sun
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
| | - Xidan Zhang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
| | - Qiuyang Han
- School of Chemical EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610065China
| | - Yi Deng
- School of Chemical EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610065China
- Department of Mechanical EngineeringThe University of Hong KongHong Kong SARChina
| | - Xueqi Gan
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
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22
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Qiu X, Zhuang M, Yuan X, Liu Z, Wu W. Nanocomposite coating of albumin/Li-containing bioactive glass nanospheres promotes osteogenic activity of PEEK. J Mater Sci Mater Med 2021; 32:120. [PMID: 34495414 PMCID: PMC8426230 DOI: 10.1007/s10856-021-06597-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Polyetheretherketone (PEEK) is an important material applied in orthopedic applications, as it posses favorable properties for orthopedic implants, e.g., radiolucency and suitable elastic modulus. However, PEEK exhibits insufficient osteogenesis and osteointegration that limits its clinical applications. In this study, we aimed to enhance the osteogenisis of PEEK by using a surface coating approach. Nanocomposite coating composed of albumin/lithium containing bioactive glass nanospheres was fabricated on PEEK through dip-coating method. The presence of nanocomposite coating on PEEK was confirmed by SEM, FTIR, and XRD techniques. Nanocomposite coatings significantly enhanced hydrophilicity and roughness of PEEK. The nanocomposite coatings also enhanced adhesion, proliferation, and osteogenic differentiation of bone mesenchymal stem cells due to the presence of bioactive glass nanospheres and the BSA substrate film. The results indicate the great potential of the nanocomposite coating in enhancing osteogenesis and osteointegration of PEEK implants.
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Affiliation(s)
- Xubin Qiu
- Department of Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Ming Zhuang
- Department of Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Xiaofeng Yuan
- Department of Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Zhiwei Liu
- Department of Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, Jiangsu, China
| | - Wenjian Wu
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China.
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23
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Ranku MN, Uwaya GE, Fayemi OE. Electrochemical Detection of Dopamine at Fe 3O 4/SPEEK Modified Electrode. Molecules 2021; 26:molecules26175357. [PMID: 34500789 PMCID: PMC8434613 DOI: 10.3390/molecules26175357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 11/26/2022] Open
Abstract
Reported here is the design of an electrochemical sensor for dopamine (DA) based on a screen print carbon electrode modified with a sulphonated polyether ether ketone-iron (III) oxide composite (SPCE-Fe3O4/SPEEK). L. serica leaf extract was used in the synthesis of iron (III) oxide nanoparticles (Fe3O4NPs). Successful synthesis of Fe3O4NP was confirmed through characterization using Fourier transform infrared (FTIR), ultraviolet–visible light (UV–VIS), X-ray diffractometer (XRD), and scanning electron microscopy (SEM). Cyclic voltammetry (CV) was used to investigate the electrochemical behaviour of Fe3O4/SPEEK in 0.1 M of phosphate buffer solution (PBS) containing 5 mM of potassium ferricyanide (III) solution (K3[Fe(CN)6]). An increase in peak current was observed at the nanocomposite modified electrode SPCE-Fe3O4/SPEEK) but not SPCE and SPCE-Fe3O4, which could be ascribed to the presence of SPEEK. CV and square wave voltammetry (SWV) were employed in the electroxidation of dopamine (0.1 mM DA). The detection limit (LoD) of 7.1 μM and 0.005 μA/μM sensitivity was obtained for DA at the SPCE-Fe3O4/SPEEK electrode with concentrations ranging from 5–50 μM. LOD competes well with other electrodes reported in the literature. The developed sensor demonstrated good practical applicability for DA in a DA injection with good resultant recovery percentages and RSDs values.
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Affiliation(s)
- Mogomotsi N. Ranku
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa; (M.N.R.); (G.E.U.)
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Gloria E. Uwaya
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa; (M.N.R.); (G.E.U.)
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Omolola E. Fayemi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa; (M.N.R.); (G.E.U.)
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Correspondence:
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24
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dos Santos FSF, Vieira M, da Silva HN, Tomás H, Fook MVL. Surface Bioactivation of Polyether Ether Ketone (PEEK) by Sulfuric Acid and Piranha Solution: Influence of the Modification Route in Capacity for Inducing Cell Growth. Biomolecules 2021; 11:biom11091260. [PMID: 34572473 PMCID: PMC8465912 DOI: 10.3390/biom11091260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/26/2020] [Accepted: 12/27/2020] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to promote bioactivity of the PEEK surface using sulfuric acid and piranha solution. PEEK was functionalized by a sulfuric acid treatment for 90 s and by piranha solution for 60 and 90 s. Chemical modification of the PEEK surface was evaluated by infrared spectroscopy, contact angle analysis, cytotoxicity, cell adhesion and proliferation. The spectroscopy characteristic band associated with sulfonation was observed in all treated samples. PEEK with piranha solution 60 s showed an increase in the intensity of the bands, which was even more significant for the longer treatment (90 s). The introduction of the sulfonic acid functional group reduced the contact angle. In cytotoxicity assays, for all treatments, the number of viable cells was higher when compared to those of untreated PEEK. PEEK treated with sulfuric acid and piranha solution for 60 s were the treatments that showed the highest percentage of cell viability with no statistically significant differences between them. The modified surfaces had a greater capacity for inducing cell growth, indicative of effective cell adhesion and proliferation. The proposed chemical modifications are promising for the functionalization of PEEK-based implants, as they were effective in promoting bioactivation of the PEEK surface and in stimulating cell growth and proliferation.
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Affiliation(s)
- Flavia Suzany Ferreira dos Santos
- Departament of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (F.S.F.d.S.); (H.N.d.S.)
| | - Mariana Vieira
- CQM—Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal; (M.V.); (H.T.)
| | - Henrique Nunes da Silva
- Departament of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (F.S.F.d.S.); (H.N.d.S.)
| | - Helena Tomás
- CQM—Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal; (M.V.); (H.T.)
| | - Marcus Vinícius Lia Fook
- Departament of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil; (F.S.F.d.S.); (H.N.d.S.)
- Correspondence: ; Tel.: +55-8321011841
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25
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Canseco JA, Karamian BA, DiMaria SL, Patel PD, Divi SN, Chang M, Timmons T, Grewal L, Hallman H, Lee JK, Kaye ID, Woods BI, Kurd MF, Anderson DG, Rihn JA, Hilibrand AS, Kepler CK, Vaccaro AR, Schroeder GD. Static Versus Expandable Polyether Ether Ketone (PEEK) Interbody Cages: A Comparison of One-Year Clinical and Radiographic Outcomes for One-Level Transforaminal Lumbar Interbody Fusion. World Neurosurg 2021; 152:e492-e501. [PMID: 34098137 DOI: 10.1016/j.wneu.2021.05.128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To examine the effect of static versus expandable polyether ether ketone (PEEK) cages on both clinical and radiographic outcomes. METHODS A retrospective cohort study was conducted on patients who underwent one-level transforaminal lumbar interbody fusion with either a static or expandable PEEK cage. Patient outcomes were obtained from chart review and radiographic outcomes were measured using standing, lateral radiographs. Recovery ratios and the proportion of patients achieving the minimally clinically important difference were calculated for Oswestry Disability Index (ODI), Physical Component Score-12, Mental Component Score-12, visual analogue scale for back, and visual analogue scale for leg at 1 year and compared between groups. Multivariate linear regression analysis was performed to determine the effect of cage type on the change in patient-reported outcome measures, controlling for demographic factors. RESULTS A total of 240 patients (137 static, 103 expandable) were included in the final analysis. ΔPhysical Component Score-12 scores at 3 months were significantly greater for the static group (16.0 vs. 10.0, P = 0.043) compared with the expandable group. Multivariate regression demonstrated that use of an expandable cage was associated with greater improvements in ΔODI (β: -7.82, P = 0.048) at 1 year. No differences were found in the perioperative change in sagittal spinal alignment within or between groups at 1 year. Subsidence rates failed to show any statistically significant difference between the 2 groups. CONCLUSIONS Transforaminal lumbar interbody fusion with an expandable PEEK cage is an independent predictor of improved ODI scores at 1 year. Our study showed no significant differences in subsidence rates or changes in sagittal spinal alignment between static and expandable PEEK cages.
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Affiliation(s)
- Jose A Canseco
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Brian A Karamian
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
| | - Stephen L DiMaria
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Parthik D Patel
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Srikanth N Divi
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Michael Chang
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Tyler Timmons
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Lovy Grewal
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Haydn Hallman
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Joseph K Lee
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - I David Kaye
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Barrett I Woods
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mark F Kurd
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - D Greg Anderson
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jeffrey A Rihn
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Alan S Hilibrand
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Christopher K Kepler
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Alexander R Vaccaro
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Gregory D Schroeder
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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26
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Zheng D, Jiang JM, Chen SM, Wan SJ, Ren HG, Chen G, Xu G, Zhou H, Zhang H, Xu HX. Structural Revision of Guttiferone F and 30- epi-Cambogin. J Nat Prod 2021; 84:1397-1402. [PMID: 33683883 DOI: 10.1021/acs.jnatprod.0c01031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Guttiferone F, a natural polyprenylated polycyclic acylphloroglucinol, was originally assigned as the 30-epimer of garcinol by NMR data analyses. Conversion of guttiferone F in the presence of acid afforded its cyclized form (2a), which was previously assigned as 30-epi-cambogin. However, the absolute configurations of guttiferone F and 2a have not been determined. Reinvestigation of the structures of those two compounds, using X-ray and NMR data analyses and chemical transformation, revealed that the original assignment of the C-30 absolute configuration in guttiferone F and 2a should be inverted. Guttiferone F is indeed garcinol, and 2a, which was previously identified as 30-epi-cambogin, is cambogin.
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Affiliation(s)
- Dan Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Jia-Ming Jiang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Si-Min Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Shi-Jie Wan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Han-Gui Ren
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Gan Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Hua Zhou
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Hong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Hong-Xi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
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27
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Lei W, Fong NWS, Jarvis KL, McKenzie DR. Quantifying Moisture Penetration in Encapsulated Devices by Heavy Water Mass Spectrometry: A Standard Moisture Leak Using Poly(ether-ether-ketone). ACS Appl Mater Interfaces 2021; 13:13666-13675. [PMID: 33688725 DOI: 10.1021/acsami.0c23115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Moisture penetration into active biomedical implants such as the bionic ear and eye is a major problem in healthcare since surgery is required to replace devices affected by corrosion. Existing methods for measuring moisture leak rates such as the commercially available dynamic relative humidity method are not sufficiently sensitive to guarantee security against moisture penetration. Helium leak detection is highly sensitive but is challenged by the unknown relation to the moisture leak rate because of mixed flow modes involving liquid water. A standard moisture leak traceable to fundamental units is not currently available, preventing direct comparison of moisture and helium leak rates in the same device. Here, we demonstrate a practical calibrated moisture leak based on the stable polymer poly(ether-ether-ketone), for calibrating heavy water mass spectrometry. Using biomedical test structures from manufactured encapsulations, we show that in the majority of cases, calibrated measurements of molar moisture leak rates exceed the helium leak rate, especially for very small and large leaks. Comparison with theory shows that LaPlace pressure is the driving force for the enhanced moisture flows. We recommend that the compliance limit for helium testing in biomedical devices be reduced by one order of magnitude.
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Affiliation(s)
- Wenwen Lei
- National Measurement Institute, 36 Bradfield Road, West Lindfield, New South Wales 2071, Australia
| | - Nicole W S Fong
- School of Physics, University of Sydney, New South Wales 2006, Australia
| | | | - David R McKenzie
- School of Physics, University of Sydney, New South Wales 2006, Australia
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28
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Wu F, He P, Chang X, Jiao W, Liu L, Si Y, Yu J, Ding B. Visible-Light-Driven and Self-Hydrogen-Donated Nanofibers Enable Rapid-Deployable Antimicrobial Bioprotection. Small 2021; 17:e2100139. [PMID: 33656273 DOI: 10.1002/smll.202100139] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/21/2021] [Indexed: 06/12/2023]
Abstract
The novel coronavirus SARS-CoV-2 has prompted a worldwide pandemic and poses a great threat to public safety and global economies. Most present personal protective equipment (PPE) used to intercept pathogenic microorganisms is deficient in biocidal properties. Herein, we present green nanofibers with effective antibacterial and antiviral activities that can provide sustainable bioprotection by continuously producing reactive oxygen species (ROS). The superiority of the design is that the nanofibers can absorb and store visible light energy and maintain the activity under light or dark environment. Moreover, the nanofibers can uninterruptedly release ROS in the absence of an external hydrogen donor, acting as a biocide under all weather conditions. A facile spraying method is proposed to rapidly deploy the functional nanofibers to existing PPE, such as protective suits and masks. The modified PPE exhibit stable ROS production, excellent capacity for storing activity potential, long-term durability, and high bactericidal (>99.9%) and viricidal (>99.999%) efficacies.
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Affiliation(s)
- Fan Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
| | - Peiwen He
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xinyi Chang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
| | - Wenling Jiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
| | - Lifang Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yang Si
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Textiles, Donghua University, Shanghai, 201620, China
- College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
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Phyo YZ, Teixeira J, Gonçalves R, Palmeira A, Tiritan ME, Bousbaa H, Pinto MMM, Fernandes C, Kijjoa A. Chiral derivatives of xanthones and benzophenones: Synthesis, enantioseparation, molecular docking, and tumor cell growth inhibition studies. Chirality 2021; 33:153-166. [PMID: 33448056 DOI: 10.1002/chir.23297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 01/13/2023]
Affiliation(s)
- Ye' Zaw Phyo
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
| | - Joana Teixeira
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Departamento de Ciências Químicas, Faculdade de Farmácia, Laboratório de Química Orgânica e Farmacêutica, Porto, Portugal
| | - Ricardo Gonçalves
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Cooperativa de Ensino Superior Politécnico e Universitário, Gandra, Portugal
| | - Andreia Palmeira
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Departamento de Ciências Químicas, Faculdade de Farmácia, Laboratório de Química Orgânica e Farmacêutica, Porto, Portugal
| | - Maria Elizabeth Tiritan
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Departamento de Ciências Químicas, Faculdade de Farmácia, Laboratório de Química Orgânica e Farmacêutica, Porto, Portugal
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Cooperativa de Ensino Superior Politécnico e Universitário, Gandra, Portugal
| | - Hassan Bousbaa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Cooperativa de Ensino Superior Politécnico e Universitário, Gandra, Portugal
| | - Madalena M M Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Departamento de Ciências Químicas, Faculdade de Farmácia, Laboratório de Química Orgânica e Farmacêutica, Porto, Portugal
| | - Carla Fernandes
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- Departamento de Ciências Químicas, Faculdade de Farmácia, Laboratório de Química Orgânica e Farmacêutica, Porto, Portugal
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
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Kode J, Kovvuri J, Nagaraju B, Jadhav S, Barkume M, Sen S, Kasinathan NK, Chaudhari P, Mohanty BS, Gour J, Sigalapalli DK, Ganesh Kumar C, Pradhan T, Banerjee M, Kamal A. Synthesis, biological evaluation, and molecular docking analysis of phenstatin based indole linked chalcones as anticancer agents and tubulin polymerization inhibitors. Bioorg Chem 2020; 105:104447. [PMID: 33207276 DOI: 10.1016/j.bioorg.2020.104447] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 02/08/2023]
Abstract
A library of new phenstatin based indole linked chalcone compounds (9a-z and 9aa-ad) were designed and synthesized. Of these, compound 9a with 1-methyl, 2- and 3-methoxy substituents in the aromatic ring was efficacious against the human oral cancer cell line SCC-29B, spheroids, and in a mouse xenograft model of oral cancer AW13516. Compound 9a exhibited anti-cancer activity through disrupting cellular integrity and affecting glucose metabolism-which is a hallmark of cancer. The cellular architecture was affected by inhibition of tubulin polymerization as observed by an immunofluorescence assay on 9a-treated SCC-29B cells. An in vitro tubulin polymerization kinetics assay provided evidence of direct interaction of 9a with tubulin. This physical interaction between tubulin and compound 9a was further confirmed by Surface Plasmon Resonance (SPR) analysis. Molecular docking experiments and validations revealed that compound 9a interacts and binds at the colchicine binding site of tubulin and at active sites of key enzymes in the glucose metabolism pathway. Based on in silico modeling, biophysical interactions, and pre-clinical observations, 9a consisting of phenstatin based indole-chalcone scaffolds, can be considered as an attractive tubulin polymerization inhibitor candidate for developing anti-cancer therapeutics.
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Affiliation(s)
- Jyoti Kode
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India.
| | - Jeshma Kovvuri
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India; Department of Humanities and Sciences, Vardhaman College of Engineering (Autonomous), Shamshabad, Hyderabad, Telangana 501218, India.
| | - Burri Nagaraju
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India.
| | - Shailesh Jadhav
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Madan Barkume
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Subrata Sen
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Nirmal Kumar Kasinathan
- Anti-Cancer Drug Screening Facility (ACDSF), Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Pradip Chaudhari
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India; Small Animal Imaging Facility, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Bhabani Shankar Mohanty
- Small Animal Imaging Facility, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Jitendra Gour
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - C Ganesh Kumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India.
| | - Trupti Pradhan
- Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
| | - Manisha Banerjee
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400085, India; Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
| | - Ahmed Kamal
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India; School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi 110062, India.
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Ybañez-Julca RO, Asunción-Alvarez D, Quispe-Díaz IM, Palacios J, Bórquez J, Simirgiotis MJ, Perveen S, Nwokocha CR, Cifuentes F, Paredes A. Metabolomic Profiling of Mango ( Mangifera indica Linn) Leaf Extract and Its Intestinal Protective Effect and Antioxidant Activity in Different Biological Models. Molecules 2020; 25:molecules25215149. [PMID: 33167456 PMCID: PMC7663946 DOI: 10.3390/molecules25215149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022] Open
Abstract
Mangifera indica Linn popularly known as mango is used in folk medicine to treat gastrointestinal disorders. The aim of this study was to identify the metabolomic composition of lyophilized extract of mango leaf (MIE), to evaluate the antioxidant activity on several oxidative stress systems (DPPH, FRAP, TBARS, and ABTS), the spasmolytic and antispasmodic activity, and intestinal protective effect on oxidative stress induced by H2O2 in rat ileum. Twenty-nine metabolites were identified and characterized based on their ultra-high-performance liquid chromatography (UHPLC) high-resolution orbitrap mass spectrometry, these include: benzophenone derivatives, xanthones, phenolic acids, fatty acids, flavonoids and procyanidins. Extract demonstrated a high antioxidant activity in in-vitro assays. MIE relaxed (p < 0.001) intestinal segments of rat pre-contracted with acetylcholine (ACh) (10−5 M). Pre-incubation of intestinal segments with 100 µg/mL MIE significantly reduced (p < 0.001) the contraction to H2O2. Similar effects were observed with mangiferin and quercetin (10−5 M; p < 0.05) but not for gallic acid. Chronic treatment of rats with MIE (50 mg/kg) for 28 days significantly reduced (p < 0.001) the H2O2-induced contractions. MIE exhibited a strong antioxidant activity, spasmolytic and antispasmodic activity, which could contribute to its use as an alternative for the management of several intestinal diseases related to oxidative stress.
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Affiliation(s)
- Roberto O. Ybañez-Julca
- Laboratorio de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (D.A.-A.); (I.M.Q.-D.)
- Correspondence: (R.O.Y.-J.); (J.P.); Tel.: +51-0449-7634-5993 (R.O.Y.-J.); +56-57-252-6910 (J.P.)
| | - Daniel Asunción-Alvarez
- Laboratorio de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (D.A.-A.); (I.M.Q.-D.)
| | - Ivan M. Quispe-Díaz
- Laboratorio de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (D.A.-A.); (I.M.Q.-D.)
| | - Javier Palacios
- Laboratorio de Bioquímica Aplicada, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique 1110939, Chile
- Correspondence: (R.O.Y.-J.); (J.P.); Tel.: +51-0449-7634-5993 (R.O.Y.-J.); +56-57-252-6910 (J.P.)
| | - Jorge Bórquez
- Laboratorio de Productos Naturales, Departamento de Química, Universidad de Antofagasta, Antofagasta 1270300, Chile;
| | - Mario J. Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile;
| | - Shagufta Perveen
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Chukwuemeka R. Nwokocha
- Department of Basic Medical Sciences, Faculty of Medical Sciences, The University of the West Indies, Mona Campus, Kingston 7, KGN, Jamaica;
| | - Fredi Cifuentes
- Laboratorio de Fisiología Experimental (EPhyL), Instituto Antofagasta (IA), Universidad de Antofagasta, Antofagasta 1270300, Chile;
| | - Adrián Paredes
- Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta 1271155, Chile;
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Ma R, Li Y, Wang J, Yang P, Wang K, Wang W. Incorporation of nanosized calcium silicate improved osteointegration of polyetheretherketone under diabetic conditions. J Mater Sci Mater Med 2020; 31:98. [PMID: 33130931 DOI: 10.1007/s10856-020-06435-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Diabetes can impair osteoblastic functions and negatively interfere with osteointegration at the bone/implant interface. Previously, we prepared a nanosized calcium silicate (CS) incorporated-polyetheretherketone (PK) biocomposite (CS/PK) and found that the CS/PK composite exhibited enhanced osteoblast functions in vitro and osteointegration in vivo, but its bioperformance under diabetic conditions remained elusive. In this study, MC3T3-E1 cells incubated on CS/PK and PK samples were subjected to diabetic serum (DS) and normal serum (NS); cell attachment, morphology, spreading, proliferation, and osteogenic differentiation were compared to assess in vitro osteoblastic functions on the surfaces of different materials. An in vivo test was performed on diabetic rabbits implanted with CS/PK or PK implants into the cranial bone defect to assess the osteointegration ability of the implants. In vitro results showed that diabetes inhibited osteoblastic functions evidenced by impaired morphology and spreading, and decreased attachment, proliferation, and osteogenic differentiation compared with the findings under normal conditions. Notably, CS/PK ameliorated osteoblastic disfunction under diabetic conditions in vitro. In vivo results from micro-CT and histologic examinations revealed that rabbits with CS/PK implants exhibited improved osteointegration at the bone/implant interface under diabetic conditions compared with PK. Therefore, the CS/PK composite improved the impaired osteointegration induced by diabetes and is a promising orthopedic or craniofacial implant material that may obtain good clinical performance in diabetic patients.
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Affiliation(s)
- Rui Ma
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China
| | - Yongwei Li
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China
| | - Jialin Wang
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China
| | - Pei Yang
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China
| | - Kunzheng Wang
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China.
| | - Wei Wang
- Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shanxi, China.
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D'Ercole S, Cellini L, Pilato S, Di Lodovico S, Iezzi G, Piattelli A, Petrini M. Material characterization and Streptococcus oralis adhesion on Polyetheretherketone (PEEK) and titanium surfaces used in implantology. J Mater Sci Mater Med 2020; 31:84. [PMID: 32989624 PMCID: PMC7522102 DOI: 10.1007/s10856-020-06408-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/12/2020] [Indexed: 05/27/2023]
Abstract
The aim of this study was to evaluate the interaction between Streptococcus oralis and Polyetheretherketone (PEEK), a novel material recently introduced in implantology. The topographical characterization and the Streptococcus oralis adhesion on this material were compared with other titanium surfaces, currently used for the production of dental implants: machined and double etched (DAE). The superficial micro-roughness of the PEEK discs was analyzed by scanning electron microscopy (SEM) and, the Energy Dispersive Spectrometer (EDS) analyzed their chemical composition. Atomic Force Microscopy (AFM) was used to characterize the micro-topography and the sessile method to evaluate the wettability of the samples. Microbiological analysis measured the colony forming units (CFUs), the biomass (OD570 detection) and the cell viability after 24 and 48 h after Streptococcus oralis cultivation on the different discs, that were previously incubated with saliva. Results showed that PEEK was characterized by a micro-roughness that was similar to machined titanium but at nano-level the nano-roughness was significantly higher in respect to the other samples. The EDS showed that PEEK superficial composition was characterized mainly by Carbonium and Oxygen. The hydrophilicity and wetting properties of PEEK were similar to machined titanium; on the contrary, double etched discs (DAE) samples were characterized by significantly higher levels (p < 0.05). PEEK was characterized by significant lower CFUs, biomass and viable cells in respect to the titanium surfaces. No differences were found between machined and DAE. The anti-adhesive and antibacterial properties showed by PEEK at 24 and 48 h against a pioneer such as S. oralis, could have an important role in the prevention of all pathologies connected with biofilm formation, like peri-implantitis in dentistry or prosthetic failures in orthopedics.
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Affiliation(s)
- Simonetta D'Ercole
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
| | - Luigina Cellini
- Department of Pharmacy, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
| | - Serena Pilato
- Department of Pharmacy, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
| | - Silvia Di Lodovico
- Department of Pharmacy, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
| | - Adriano Piattelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy
- Fondazione Villa Serena per la Ricerca, Città S. Angelo, Via Petruzzi 42, 65013, Chieti, Italy
| | - Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Via dei Vestini 31, 66100, Chieti, Italy.
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Huang CY, Chang TC, Wu YJ, Chen Y, Chen JJ. Benzophenone and Benzoylphloroglucinol Derivatives from Hypericum sampsonii with Anti-Inflammatory Mechanism of Otogirinin A. Molecules 2020; 25:molecules25194463. [PMID: 32998421 PMCID: PMC7582647 DOI: 10.3390/molecules25194463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/22/2020] [Accepted: 09/27/2020] [Indexed: 01/30/2023] Open
Abstract
Three new compounds, 4-geranyloxy-2-hydroxy-6-isoprenyloxybenzophenone (1), hypericumone A (2) and hypericumone B (3), were obtained from the aerial parts of Hypericum sampsonii, along with six known compounds (4–9). The structures of these compounds were determined through spectroscopic and MS analyses. Hypericumone A (2), sampsonione J (8) and otogirinin A (9) exhibited potent inhibition (IC50 values ≤ 40.32 μM) against lipopolysaccharide (LPS)-induced nitric oxide (NO) generation. Otogirinin A (9) possessed the highest inhibitory effect on NO production with IC50 value of 32.87 ± 1.60 μM. The well-known proinflammatory cytokine, tumor necrosis factor-alpha (TNF-α) was also inhibited by otogirinin A (9). Western blot results demonstrated that otogirinin A (9) downregulated the high expression of inducible nitric oxide synthase (iNOS). Further investigations on the mechanism showed that otogirinin A (9) blocked the phosphorylation of MAPK/JNK and IκBα, whereas it showed no effect on the phosphorylation of MAPKs/ERK and p38. In addition, otogirinin A (9) stimulated anti-inflammatory M2 phenotype by elevating the expression of arginase 1 and Krüppel-like factor 4 (KLF4). The above results suggested that otogirinin A (9) could be considered as potential compound for further development of NO production-targeted anti-inflammatory agent.
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Affiliation(s)
- Chun-Yi Huang
- School of Pharmaceutical Sciences, Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (C.-Y.H.); (Y.C.)
| | - Tzu-Cheng Chang
- Department of Forestry and Natural Resources, National Ilan University, Yilan City 26047, Taiwan;
| | - Yu-Jing Wu
- Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan;
| | - Yun Chen
- School of Pharmaceutical Sciences, Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (C.-Y.H.); (Y.C.)
| | - Jih-Jung Chen
- School of Pharmaceutical Sciences, Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (C.-Y.H.); (Y.C.)
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404332, Taiwan
- Correspondence: ; Tel.: +886-2-2826-7195
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Coste C, Gérard N, Dinh CP, Bruguière A, Rouger C, Leong ST, Awang K, Richomme P, Derbré S, Charreau B. Targeting MHC Regulation Using Polycyclic Polyprenylated Acylphloroglucinols Isolated from Garcinia bancana. Biomolecules 2020; 10:biom10091266. [PMID: 32887413 PMCID: PMC7563419 DOI: 10.3390/biom10091266] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/15/2022] Open
Abstract
Modulation of major histocompatibility complex (MHC) expression using drugs has been proposed to control immunity. Phytochemical investigations on Garcinia species have allowed the isolation of bioactive compounds such as polycyclic polyprenylated acylphloroglucinols (PPAPs). PPAPs such as guttiferone J (1), display anti-inflammatory and immunoregulatory activities while garcinol (4) is a histone acetyltransferases (HAT) p300 inhibitor. This study reports on the isolation, identification and biological characterization of two other PPAPs, i.e., xanthochymol (2) and guttiferone F (3) from Garcinia bancana, sharing structural analogy with guttiferone J (1) and garcinol (4). We show that PPAPs 1-4 efficiently downregulated the expression of several MHC molecules (HLA-class I, -class II, MICA/B and HLA-E) at the surface of human primary endothelial cells upon inflammation. Mechanistically, PPAPs 1-4 reduce MHC proteins by decreasing the expression and phosphorylation of the transcription factor STAT1 involved in MHC upregulation mediated by IFN-γ. Loss of STAT1 activity results from inhibition of HAT CBP/p300 activity reflected by a hypoacetylation state. The binding interactions to p300 were confirmed through molecular docking. Loss of STAT1 impairs the expression of CIITA and GATA2 but also TAP1 and Tapasin required for peptide loading and transport of MHC. Overall, we identified new PPAPs issued from Garcinia bancana with potential immunoregulatory properties.
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Affiliation(s)
- Chloé Coste
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Nathalie Gérard
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
| | - Chau Phi Dinh
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Antoine Bruguière
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Caroline Rouger
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Sow Tein Leong
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.L.); (K.A.)
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.L.); (K.A.)
| | - Pascal Richomme
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Séverine Derbré
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
- Correspondence: (S.D.); (B.C.); Tel.: +33-249-180-440 (S.D.); +33-240-087-416 (B.C.); Fax: +33-240-087-411 (B.C.)
| | - Béatrice Charreau
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
- Correspondence: (S.D.); (B.C.); Tel.: +33-249-180-440 (S.D.); +33-240-087-416 (B.C.); Fax: +33-240-087-411 (B.C.)
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Abstract
Single cell MS (SCMS) techniques are under rapid development for molecular analysis of individual cells among heterogeneous populations. Lipids are basic cellular constituents playing essential functions in energy storage and the cellular signaling processes of cells. Unsaturated lipids are characterized with one or multiple carbon-carbon double (C═C) bonds, and they are critical for cell functions and human diseases. Characterizing unsaturated lipids in single cells allows for better understanding of metabolomic biomarkers and therapeutic targets of rare cells (e.g., cancer stem cells); however, these studies remain challenging. We developed a new technique using a micropipette needle, in which Paternò-Büchi (PB) reactions at C═C bond can be induced, to determine locations of C═C bonds in unsaturated lipids at the single-cell level. The micropipette needle is produced by combining a pulled glass capillary needle with a fused silica capillary. Cell lysis solvent and PB reagent (acetone or benzophenone) are delivered into the micropipette needle (tip size ≈ 15 um) through a fused silica capillary. The capillary needle plays multiple functions (i.e., single cell sampling probe, cell lysis container, microreactor, and nano-ESI emitter) in the experiments. Both regular (no reaction) and reactive (with PB reaction) SCMS analyses of the same cell can be achieved. C═C bond locations were determined from MS scan and MS/MS of PB products assisted by Python programs. This technique can potentially be used for other reactive SCMS studies to enhance molecular analysis for broad ranges of single cells.
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Affiliation(s)
- Yanlin Zhu
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Wenhua Wang
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Zhibo Yang
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
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37
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Ghosh S, Mukherjee R, Basak D, Haldar J. One-Step Curable, Covalently Immobilized Coating for Clinically Relevant Surfaces That Can Kill Bacteria, Fungi, and Influenza Virus. ACS Appl Mater Interfaces 2020; 12:27853-27865. [PMID: 32538606 DOI: 10.1021/acsami.9b22610] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Microbial attachment and subsequent colonization onto surfaces lead to the spread of deadly community-acquired and hospital-acquired (nosocomial) infections. Cationic polymeric coatings have gained enormous attention to tackle this scenario. However, non-biodegradable cationic polymer coated surfaces suffer from accumulation of microbial debris leading to toxicity and consequent complexities. Synthetic reproducibility and sophisticated coating techniques further limit their application. In this present study, we have developed one-step curable, covalent coatings based on two organo- and water-soluble small molecules, quaternary benzophenone-based ester and quaternary benzophenone-based amide, which can cross-link on surfaces upon UV irradiation. Upon contact, the coating completely killed bacteria and fungi in vitro including drug-resistant pathogens methicillin-resistant Staphylococcus aureus (MRSA) and fluconazole-resistant Candida albicans spp. The coating also showed antiviral activity against notorious influenza virus with 100% killing. The coated surfaces also killed stationary-phase cells of MRSA, which cannot be eradicated by traditional antibiotics. Upon hydrolysis, the surfaces switched to an antifouling state displaying significant reduction in bacterial adherence. To the best of our knowledge, this is the first report of an antimicrobial coating which could kill all of bacteria, fungi, and influenza virus. Taken together, the antimicrobial coating reported herein holds great promise to be developed for further application in healthcare settings.
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Affiliation(s)
- Sreyan Ghosh
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Riya Mukherjee
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Debajyoti Basak
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
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38
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Hassan MM, Olaoye OO. Recent Advances in Chemical Biology Using Benzophenones and Diazirines as Radical Precursors. Molecules 2020; 25:E2285. [PMID: 32414020 PMCID: PMC7288102 DOI: 10.3390/molecules25102285] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/06/2020] [Accepted: 05/09/2020] [Indexed: 12/19/2022] Open
Abstract
The use of light-activated chemical probes to study biological interactions was first discovered in the 1960s, and has since found many applications in studying diseases and gaining deeper insight into various cellular mechanisms involving protein-protein, protein-nucleic acid, protein-ligand (drug, probe), and protein-co-factor interactions, among others. This technique, often referred to as photoaffinity labelling, uses radical precursors that react almost instantaneously to yield spatial and temporal information about the nature of the interaction and the interacting partner(s). This review focuses on the recent advances in chemical biology in the use of benzophenones and diazirines, two of the most commonly known light-activatable radical precursors, with a focus on the last three years, and is intended to provide a solid understanding of their chemical and biological principles and their applications.
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Affiliation(s)
- Muhammad Murtaza Hassan
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga, ON L5L 1C6, Canada;
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Olasunkanmi O. Olaoye
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga, ON L5L 1C6, Canada;
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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Lee SH, Xiong JQ, Ru S, Patil SM, Kurade MB, Govindwar SP, Oh SE, Jeon BH. Toxicity of benzophenone-3 and its biodegradation in a freshwater microalga Scenedesmus obliquus. J Hazard Mater 2020; 389:122149. [PMID: 32004845 DOI: 10.1016/j.jhazmat.2020.122149] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/30/2019] [Accepted: 01/19/2020] [Indexed: 06/10/2023]
Abstract
Environmental contamination by benzophenone-3 has gained attention because of its frequent occurrence and adverse environmental impact. Studies investigating the toxicity and removal mechanisms, along with its degradation pathway in microalgae are still rare. In this study, the ecotoxicity of benzophenone-3 on Scenedesmus obliquus was assessed through dose-response test, risk quotient evaluation, and changes of microalgal biochemical characteristics and gene expression. The calculated risk quotients of benzophenone-3 were >1, implying its high environmental risk. Expression of the ATPF0C and Tas genes encoding ATP-synthase and oxidoreductase was significantly increased in S. obliquus after exposure to benzophenone-3, while that of Lhcb1 and HydA genes was reduced. When exposed to 0.1-3 mg L-1 benzophenone-3, 23-29 % removal was achieved by S. obliquus, which was induced by abiotic removal, bioadsorption, bioaccumulation and biodegradation. Metabolic fate analyses showed that biodegradation of benzophenone-3 was induced by hydroxylation, and methylation, forming less toxic intermediates according to the toxicity assessment of the identified products. This study provides a better understanding of the toxicity and metabolic mechanisms of benzophenone-3 in microalgae, demonstrating the potential application of microalgae in the remediation of benzophenone-3 contaminated wastewater.
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Affiliation(s)
- Sang-Hun Lee
- Department of Environmental Science, Keimyung University, 42601 Daegu, South Korea
| | - Jiu-Qiang Xiong
- Department of Environmental Science, Keimyung University, 42601 Daegu, South Korea; College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Swapnil M Patil
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Mayur B Kurade
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Sanjay P Govindwar
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Sang-Eun Oh
- Department of Biological Environment, Kangwon National University, 192-1 Hyoja-2-dong, Gangwondo, Chuncheon 200-701, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea.
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40
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Wang J, Gong T, Xian Q. Formation of haloacetic acids from different organic precursors in swimming pool water during chlorination. Chemosphere 2020; 247:125793. [PMID: 31931310 DOI: 10.1016/j.chemosphere.2019.125793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/27/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Haloacetic acids (HAAs) were reported to be the most abundant category of DBPs in swimming pool water. In this study, the formation of HAAs from different organic precursors in swimming pool water, including UV filters, human body fluids, and natural organic matter (NOM), during chlorination was examined, and the effects of chlorine dose and halide concentrations on the formation of HAAs were evaluated. The results show that the total HAA yields from benzophenone-3 (BP-3) and Suwannee River humic acid (SRHA) were the highest among the nine organic precursors, and the yields of dichloroacetic acid and bromochloroacetic acid were higher than that of the other HAA species. In all the chlorinated samples of different organic precursors, longer chlorination time enhanced HAA formation. Both chlorine dose and bromide concentration significantly affected the formation of HAAs from BP-3 and SRHA during chlorination. With the increasing chlorine dose, the total HAA yields from SRHA and BP-3 significantly increased. Besides, the proportion of trihaloacetic acids (THAAs) rose while that of dihaloacetic acids (DHAAs) and monohaloacetic acids (MHAAs) declined with the increasing chlorine dose. With the increasing bromide concentration, HAA formation from SRHA increased while that of BP-3 decreased. The bromine incorporation factor (BIF) of the formed MHAAs, DHAAs and THAAs from SRHA and BP-3 both increased with the increasing bromide concentration in the following order: BIFDHAAs > BIFTHAAs > BIFMHAAs, indicating that bromine was easier to be incorporated into DHAAs rather than MHAAs or THAAs. Moreover, bromide promoted the formation of Br-HAAs.
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Affiliation(s)
- Junjie Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Tingting Gong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
| | - Qiming Xian
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
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Bashiri S, Abdollahzadeh J, Di Lecce R, Alioto D, Górecki M, Pescitelli G, Masi M, Evidente A. Rabenchromenone and Rabenzophenone, Phytotoxic Tetrasubstituted Chromenone and Hexasubstituted Benzophenone Constituents Produced by the Oak-Decline-Associated Fungus Fimetariella rabenhorstii. J Nat Prod 2020; 83:447-452. [PMID: 31967466 PMCID: PMC7993755 DOI: 10.1021/acs.jnatprod.9b01017] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Indexed: 05/07/2023]
Abstract
A new phytotoxic tetrasubstituted chromen-4-one (1) and a new hexasubstituted benzophenone (2), named rabenchromenone and rabenzophenone, respectively, were isolated from the culture filtrates of Fimetariella rabenhorstii, an oak-decline-associated fungus in Iran. Rabenchromenone and rabenzophenone, isolated together with known moniliphenone (3) and coniochaetone A (4), were characterized as methyl 3-chloro-1,8-dihydroxy-6-methyl-9-oxo-1,9-dihydrocyclopenta[b]chromene-1-carboxylate and methyl 4-chloro-2-(2,6-dihydroxy-4-methylbenzoyl)-3-hydroxybenzoate, respectively, by spectroscopic methods (primarily nuclear magnetic resonance and high-resolution electrospray ionization mass spectrometry). The R absolute configuration at C-1 of rabenchromenone was determined by quantum chemical calculations and electronic circular dichroism experiments. All metabolites (1-4) were tested by leaf puncture on tomato and oak plants. All compounds were active in this assay by causing in both plants a necrosis diameter in the range of 0.2-0.7 cm. Specifically, rabenzophenone (2) was found to be the most phytotoxic compound in both plants.
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Affiliation(s)
- Samaneh Bashiri
- Department
of Plant Protection, Faculty of Agriculture, University of Kurdistan, Pasdaran Street, Post Office Box 416, Sanandaj, Iran
| | - Jafar Abdollahzadeh
- Department
of Plant Protection, Faculty of Agriculture, University of Kurdistan, Pasdaran Street, Post Office Box 416, Sanandaj, Iran
| | - Roberta Di Lecce
- Dipartimento
di Scienze Chimiche, Università di
Napoli Federico II, Complesso Universitario
Monte Sant’Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Daniela Alioto
- Dipartimento
di Agraria, Università degli Studi
di Napoli Federico II, Via Università 100, 80055 Portici, Italy
| | - Marcin Górecki
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
- Institute
of Organic Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52 Street, 01-224 Warsaw, Poland
| | - Gennaro Pescitelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Marco Masi
- Dipartimento
di Scienze Chimiche, Università di
Napoli Federico II, Complesso Universitario
Monte Sant’Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Antonio Evidente
- Dipartimento
di Scienze Chimiche, Università di
Napoli Federico II, Complesso Universitario
Monte Sant’Angelo, Via Cintia 4, 80126 Napoli, Italy
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Anhäuser L, Klöcker N, Muttach F, Mäsing F, Špaček P, Studer A, Rentmeister A. A Benzophenone-Based Photocaging Strategy for the N7 Position of Guanosine. Angew Chem Int Ed Engl 2020; 59:3161-3165. [PMID: 31747109 PMCID: PMC7012642 DOI: 10.1002/anie.201914573] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Indexed: 12/11/2022]
Abstract
Selective modification of nucleobases with photolabile caging groups enables the study and control of processes and interactions of nucleic acids. Numerous positions on nucleobases have been targeted, but all involve formal substitution of a hydrogen atom with a photocaging group. Nature, however, also uses ring-nitrogen methylation, such as m7 G and m1 A, to change the electronic structure and properties of RNA and control biomolecular interactions essential for translation and turnover. We report that aryl ketones such as benzophenone and α-hydroxyalkyl ketone are photolabile caging groups if installed at the N7 position of guanosine or the N1 position of adenosine. Common photocaging groups derived from the ortho-nitrobenzyl moiety were not suitable. Both chemical and enzymatic methods for site-specific modification of N7G in nucleosides, dinucleotides, and RNA were developed, thereby opening the door to studying the molecular interactions of m7 G and m1 A with spatiotemporal control.
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Affiliation(s)
- Lea Anhäuser
- Institut für BiochemieWestfälische Wilhelms-Universität MünsterWilhelm-Klemm-Str. 248149MünsterGermany
| | - Nils Klöcker
- Institut für BiochemieWestfälische Wilhelms-Universität MünsterWilhelm-Klemm-Str. 248149MünsterGermany
| | - Fabian Muttach
- Institut für BiochemieWestfälische Wilhelms-Universität MünsterWilhelm-Klemm-Str. 248149MünsterGermany
| | - Florian Mäsing
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Petr Špaček
- Institut für BiochemieWestfälische Wilhelms-Universität MünsterWilhelm-Klemm-Str. 248149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Andrea Rentmeister
- Institut für BiochemieWestfälische Wilhelms-Universität MünsterWilhelm-Klemm-Str. 248149MünsterGermany
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43
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Qin Y, Jia H, Zhao G, Li Z, Wang H, Gao B. Characterization of the metabolites of GW1929 in rat by liquid chromatography coupled with electrospray ionization tandem mass spectrometry. Rapid Commun Mass Spectrom 2020; 34:e8585. [PMID: 31515879 DOI: 10.1002/rcm.8585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE GW1929 is a potent PPAR-γ activator. To fully understand its mechanism of action, it is necessary to study the in vitro and in vivo metabolism. METHODS For in vitro metabolism, GW1929 was incubated with rat hepatocytes at 37°C for 2 h. For in vivo metabolism, rats were orally administered with GW1929 at a single dose of 10 mg/kg and plasma, urinary and fecal samples were collected at defined time points. All the samples were analyzed by the developed ultra-high-performance liquid chromatography combined with tandem mass spectrometry. The structures of metabolites were proposed according to their accurate masses and product ions. RESULTS A total of 17 metabolites, including seven glucuronide conjugates, were detected and structurally identified. M4 (hydroxylation), M13 (demethylation) and M14 (hydroxylation) were the most abundant metabolites. The metabolic pathways of GW1929 referred to hydroxylation, demethylation, deamination and glucuronidation. CONCLUSIONS The present study provided new information on the in vitro and in vivo metabolic profiles of GW1929 which will be helpful for a better understanding of the mechanism of the elimination of GW1929.
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Affiliation(s)
- Ying Qin
- Department of Pharmacy, BaoGang Hospital, No. 20 Shaoxian Road, Baotou, 014010, Inner Mongolia, China
| | - Haoyan Jia
- Department of Pharmacy, The Third Staff Hospital of BaoGang Group, No. 15 Qingnian Road, Baotou, 014010, Inner Mongolia, China
| | - Guizhu Zhao
- Department of Pharmacy, BaoGang Hospital, No. 20 Shaoxian Road, Baotou, 014010, Inner Mongolia, China
| | - Zhihong Li
- Department of Pharmacy, BaoGang Hospital, No. 20 Shaoxian Road, Baotou, 014010, Inner Mongolia, China
| | - Hongqin Wang
- Department of Pharmacy, BaoGang Hospital, No. 20 Shaoxian Road, Baotou, 014010, Inner Mongolia, China
| | - Baiqing Gao
- Department of Pharmacy, BaoGang Hospital, No. 20 Shaoxian Road, Baotou, 014010, Inner Mongolia, China
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Raksat A, Phukhatmuen P, Yang J, Maneerat W, Charoensup R, Andersen RJ, Wang YA, Pyne SG, Laphookhieo S. Phloroglucinol Benzophenones and Xanthones from the Leaves of Garcinia cowa and Their Nitric Oxide Production and α-Glucosidase Inhibitory Activities. J Nat Prod 2020; 83:164-168. [PMID: 31860303 DOI: 10.1021/acs.jnatprod.9b00849] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Five new compounds-two phloroglucinol benzophenones, garciniacowones F (1) and G (2), and three xanthones, garciniacowones H (3), I (4), and J (5)-together with seven known xanthones (6-12) were isolated from the fresh leaves of Garcinia cowa. Their structures were elucidated by detailed analysis of NMR and MS data. Compounds 1 and 2 are phloroglucinol benzophenones containing a polyprenylated bicyclo[3.3.1]nonane ring system, while compounds 3-5 are rare xanthones having farnesyl (3 and 5) and geranylgeranyl (5) units at C-8. Compounds 1, 3, 4, 7, 8, and 10 exhibited inhibitory effects on NO production in LPS-induced RAW264.7 macrophage cells with IC50 values ranging from 5.4 to 18.6 μM. Compounds 4 and 8 had α-glucosidase inhibitory activities with IC50 values of 15.4 and 11.4 μM, respectively, which were more potent than that of the acarbose control.
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Affiliation(s)
| | | | | | | | | | | | | | - Stephen G Pyne
- School of Chemistry and Molecular Bioscience , University of Wollongong , Wollongong , New South Wales 2522 , Australia
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Abstract
Thermodynamic partitioning dictates solute loading and release from a hydrogel. Design of drug delivery vehicles, cell and tissue matrices, and immunoassay scaffolds that utilize hydrogel materials is informed by an understanding of the thermodynamic partitioning properties of those hydrogels. We develop aberration-compensated laser scanning confocal microscopy (AC-LSCM), a technique that can be applied to all fluorescence microscopy-based equilibrium partition coefficient measurements where the fluorescence is uniformly distributed in the reference material (e.g., many solutes in thermodynamic equilibrium). In this paper, we use AC-LSCM to measure spatially resolved in situ equilibrium partition coefficients of various fluorescently labeled solutes in single-layer and multilayer open hydrogels. In considering a dynamic material, we scrutinize solute interactions with a UV photoactive polyacrylamide gel that incorporates a benzophenone methacrylamide backbone. We observed strong agreement with an adjusted version of Ogston's ideal size-exclusion model for spatially resolved in situ equilibrium partition coefficients across a wide range of polyacrylamide hydrogel densities (R2 = 0.98). Partition coefficients of solutes differing in hydrodynamic radius were consistent with size-based theory in the photoactive hydrogels, but exceed those in unmodified polyacrylamide gels. This observation suggests a deviation from the size-exclusion model and a shift in the thermodynamic equilibrium state of the solutes toward the gel phase. AC-LSCM also resolves differential partitioning behavior of the model solute in two-layer gels, providing insight into the transport phenomena governing the partitioning in multilaminate gel structures. Furthermore, AC-LSCM identifies and quantifies depth-dependent axial aberrations that could confound quantitation, highlighting the need for the "aberration compensated" aspect of AC-LSCM.
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Affiliation(s)
- Alison Su
- The UC Berkeley/UCSF Graduate Program in Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Benjamin E. Smith
- Department of Vision Sciences, University of California Berkeley, Berkeley, California 94720, United States
| | - Amy E. Herr
- The UC Berkeley/UCSF Graduate Program in Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
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Dalinova A, Chisty L, Kochura D, Garnyuk V, Petrova M, Prokofieva D, Yurchenko A, Dubovik V, Ivanov A, Smirnov S, Zolotarev A, Berestetskiy A. Isolation and Bioactivity of Secondary Metabolites from Solid Culture of the Fungus, Alternaria sonchi. Biomolecules 2020; 10:E81. [PMID: 31947939 PMCID: PMC7022477 DOI: 10.3390/biom10010081] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/27/2019] [Accepted: 01/02/2020] [Indexed: 02/06/2023] Open
Abstract
The fungus, Alternaria sonchi is considered to be a potential agent for the biocontrol of perennial sowthistle (Sonchus arvensis). A new chlorinated xanthone, methyl 8-hydroxy-3-methyl-4-chloro-9-oxo-9H-xanthene-1-carboxylate (1) and a new benzophenone derivative, 5-chloromoniliphenone (2), were isolated together with eleven structurally related compounds (3-13) from the solid culture of the fungus, which is used for the production of bioherbicidal inoculum of A. sonchi. Their structures were determined by spectroscopic (mostly by NMR and MS) methods. Alternethanoxins A and B, which were reported in A. sonchi earlier, were re-identified as moniliphenone and pinselin, respectively. The isolated compounds were tested for phytotoxic, antimicrobial, insecticidal, cytotoxic and esterase-inhibition activities. They did not demonstrate high phytotoxicity (lesions up to 2.5 mm in diameter/length at a concentration of 2 mg/mL) when tested on leaf disks/segments of perennial sowthistle (Sonchus arvensis) and couch grass (Elytrigia repens). They did not possess acute toxicity to Paramecium caudatum, and showed moderate to low cytotoxicity (IC50 > 25 µg/mL) for U937 and K562 tumor cell lines. However, chloromonilicin and methyl 3,8-dihydroxy-6-methyl-4-chloro-9-oxo-9H-xanthene-1-carboxylate (4) were shown to have antimicrobial properties with MIC 0.5-5 µg/disc. Compound 4 and chloromonilinic acid B were found to have contact insecticidal activity to wheat aphid (Schizaphis graminum) at 1 mg/mL. Compounds 2 and methyl 3,8-dihydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylate displayed selective carboxylesterase inhibition activity at concentration of 100 µg/mL. Therefore, the waste solid substrate for production of A. sonchi spores can be re-utilized for the isolation of a number of valuable natural products.
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Affiliation(s)
- Anna Dalinova
- All-Russian Institute of Plant Protection, Russian Academy of Agricultural Sciences, Pushkin, 196608 Saint-Petersburg, Russia; (A.D.); (M.P.); (V.D.)
| | - Leonid Chisty
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint-Petersburg, Russia; (L.C.); (D.K.); (V.G.); (D.P.)
| | - Dmitry Kochura
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint-Petersburg, Russia; (L.C.); (D.K.); (V.G.); (D.P.)
| | - Varvara Garnyuk
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint-Petersburg, Russia; (L.C.); (D.K.); (V.G.); (D.P.)
| | - Maria Petrova
- All-Russian Institute of Plant Protection, Russian Academy of Agricultural Sciences, Pushkin, 196608 Saint-Petersburg, Russia; (A.D.); (M.P.); (V.D.)
| | - Darya Prokofieva
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint-Petersburg, Russia; (L.C.); (D.K.); (V.G.); (D.P.)
| | - Anton Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, 690022 Vladivostok, Russia;
| | - Vsevolod Dubovik
- All-Russian Institute of Plant Protection, Russian Academy of Agricultural Sciences, Pushkin, 196608 Saint-Petersburg, Russia; (A.D.); (M.P.); (V.D.)
| | - Alexander Ivanov
- St. Petersburg State University, Universitetsky Av. 26, 198504 St. Petersburg, Russia; (A.I.); (S.S.); (A.Z.)
| | - Sergey Smirnov
- St. Petersburg State University, Universitetsky Av. 26, 198504 St. Petersburg, Russia; (A.I.); (S.S.); (A.Z.)
| | - Andrey Zolotarev
- St. Petersburg State University, Universitetsky Av. 26, 198504 St. Petersburg, Russia; (A.I.); (S.S.); (A.Z.)
| | - Alexander Berestetskiy
- All-Russian Institute of Plant Protection, Russian Academy of Agricultural Sciences, Pushkin, 196608 Saint-Petersburg, Russia; (A.D.); (M.P.); (V.D.)
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47
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Wang W, Park C, Oh E, Sung Y, Lee J, Park KH, Kang H. Benzophenone Compounds, from a Marine-Derived Strain of the Fungus Pestalotiopsis neglecta, Inhibit Proliferation of Pancreatic Cancer Cells by Targeting the MEK/ERK Pathway. J Nat Prod 2019; 82:3357-3365. [PMID: 31829592 DOI: 10.1021/acs.jnatprod.9b00646] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Pancreatic cancer, which has an extremely poor prognosis, is one of the most fatal human cancers. Chemotherapy is the main palliative treatment for advanced cancer patients and also plays an indispensable role in postoperative treatments for surgical patients. Therefore, there is an urgent need to develop more innovative anticancer drugs to fight against this fatal disease. Here, we investigate the potential of benzophenone derivatives, obtained from a marine-derived strain of the fungus Pestalotiopsis neglecta, as antiproliferative lead compounds for the treatment of pancreatic cancer. The compounds, seven new (1-7) and two known (8 and 9) halogenated benzophenone derivatives, were obtained by bioactivity-guided fractionation from the cultures of Pestalotiopsis neglecta. The structures were defined by spectroscopic methods including X-ray crystallographic analysis. Using the commonly used pancreatic cancer cell line PANC-1, 2 and 4 were found to suppress cell proliferation and induce apoptosis in the low micromolar range of 7.6 and 7.2 μM, respectively. Mechanistically, benzophenone derivatives not only inhibit MEK activity in the cytoplasm but also suppress ERK activity in the cytoplasm and nucleus. An in silico study suggests that benzophenone derivatives could potentially inhibit MEK activity by binding to the allosteric pocket in MEK. Benzophenones could serve as new lead compounds for the treatment of pancreatic cancer.
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Affiliation(s)
- Weihong Wang
- Research Institute of Oceanography , Seoul National University , NS-80 , 08826 , Seoul , Korea
| | | | | | | | | | | | - Heonjoong Kang
- Research Institute of Oceanography , Seoul National University , NS-80 , 08826 , Seoul , Korea
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48
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Carena L, Puscasu CG, Comis S, Sarakha M, Vione D. Environmental photodegradation of emerging contaminants: A re-examination of the importance of triplet-sensitised processes, based on the use of 4-carboxybenzophenone as proxy for the chromophoric dissolved organic matter. Chemosphere 2019; 237:124476. [PMID: 31404736 DOI: 10.1016/j.chemosphere.2019.124476] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/24/2019] [Accepted: 07/27/2019] [Indexed: 06/10/2023]
Abstract
The photoreactions sensitised by the excited triplet states of chromophoric dissolved organic matter (3CDOM*) are very important in the photochemical attenuation of emerging contaminants in natural waters. Until quite recently, anthraquinone-2-sulphonate (AQ2S) was the only available CDOM proxy molecule to estimate the contaminant reaction kinetics with 3CDOM*, under steady-state irradiation conditions. Unfortunately, the AQ2S triplet state (3AQ2S*) is considerably more reactive than average 3CDOM*. We have recently developed an alternative protocol based on 4-carboxybenzophenone (CBBP), the triplet state of which (3CBBP*) is less reactive compared to 3AQ2S*. Here we show that in the case of ibuprofen (IBP), paracetamol (APAP) and clofibric acid (CLO), the reaction rate constants with 3CBBP* are more reasonable as 3CDOM* reactivity estimates than those obtained by using AQ2S. In contrast, similar rate constants are measured for the reaction of atrazine (ATZ) with either 3AQ2S* or 3CBBP*. Moreover, the reactivity of ATZ with both 3AQ2S* and 3CBBP* is very similar to that with 3CDOM*, available through a literature estimate. The possibility to validate the ATZ-3CBBP* reactivity estimate against the 3CDOM* data, and to accurately predict the reported IBP and CLO field lifetime, support the suitability of CBBP as CDOM proxy. The replacement of AQ2S with CBBP as proxy molecule does not reverse the qualitative prediction, according to which 3CDOM* would be the main process involved in the photodegradation of the studied contaminants in waters with high dissolved organic carbon (DOC). However, the CBBP-based data prompt for an important reconsideration of the estimated lifetimes at high DOC.
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Affiliation(s)
- Luca Carena
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 5, 10125, Torino, Italy
| | - Cezara G Puscasu
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 5, 10125, Torino, Italy
| | - Silvia Comis
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 5, 10125, Torino, Italy
| | - Mohamed Sarakha
- Institut de Chimie de Clermont-Ferrand, Clermont Université, Université Blaise Pascal, F-63177, Aubière, France
| | - Davide Vione
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 5, 10125, Torino, Italy.
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49
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Almeida SDS, Rocha TL, Qualhato G, Oliveira LDAR, Amaral CLD, Conceição ECD, Sabóia-Morais SMTD, Bailão EFLC. Acute exposure to environmentally relevant concentrations of benzophenone-3 induced genotoxicity in Poecilia reticulata. Aquat Toxicol 2019; 216:105293. [PMID: 31522060 DOI: 10.1016/j.aquatox.2019.105293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/03/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
The organic UV filter benzophenone-3 (BP-3), widely used in the commercial formulations of sunscreens and personal care products, is considered an emerging pollutant and has been associated with several human and environmental health concerns. However, knowledge about their mode of action and ecotoxicity on aquatic biota is scarce. In this scenario, the objective of this work was to evaluate the genotoxic, mutagenic, and erythrotoxicity effects of BP-3 in the guppy Poecilia reticulata after acute exposure. Adult females of P. reticulata were exposed to three non-lethal and environmentally relevant concentrations of BP-3 (10, 100, and 1000 ng L-1) during 96 h of exposure, and the somatic parameter [Fulton condition factor (K)], genotoxicity (comet assay), mutagenicity [micronucleus (MN) and erythrocyte nuclear abnormalities (ENA) tests] and erythrotoxicity parameters (such as total cell area and nucleus-cytoplasmic ratio) were analyzed. Results showed that the general physiological condition (K value) of fish was not affected by acute exposure to BP-3. However, BP-3 induced DNA damage at 100 and 1000 ng L-1 and increased the frequency of total ENA at 1000 ng L-1, specially lobed nucleus, when compared to control group, indicating its genotoxic and mutagenic effects. Furthermore, the BP-3 did not induce significant changes in the total cell area and nucleus-cytoplasmic ratio. In summary, results showed that the BP-3 at environmentally relevant concentration was genotoxic to freshwater fish P. reticulata, confirming its environmental risk.
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Affiliation(s)
- Sara Dos Santos Almeida
- Laboratório de Biotecnologia, Câmpus Henrique Santillo, Universidade Estadual de Goiás, Anápolis, Goiás, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Gabriel Qualhato
- Laboratório de Comportamento Celular, Departamento de Morfologia, Instituto de Ciências Biológicos, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Leandra de Almeida Ribeiro Oliveira
- Laboratório de Biotecnologia, Câmpus Henrique Santillo, Universidade Estadual de Goiás, Anápolis, Goiás, Brazil; Laboratório de PD&I de Bioprodutos, Universidade Federal de Goiás, Faculdade de Farmácia, Goiânia, Goiás, Brazil
| | - Cátia Lira do Amaral
- Laboratório de Biotecnologia, Câmpus Henrique Santillo, Universidade Estadual de Goiás, Anápolis, Goiás, Brazil
| | | | - Simone Maria Teixeira de Sabóia-Morais
- Laboratório de Comportamento Celular, Departamento de Morfologia, Instituto de Ciências Biológicos, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
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50
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Gopal A, Herr AE. Multiplexed in-gel microfluidic immunoassays: characterizing protein target loss during reprobing of benzophenone-modified hydrogels. Sci Rep 2019; 9:15389. [PMID: 31659305 PMCID: PMC6817870 DOI: 10.1038/s41598-019-51849-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/27/2019] [Indexed: 12/28/2022] Open
Abstract
From whole tissues to single-cell lysate, heterogeneous immunoassays are widely utilized for analysis of protein targets in complex biospecimens. Recently, benzophenone-functionalized hydrogel scaffolds have been used to immobilize target protein for immunoassay detection with fluorescent antibody probes. In benzophenone-functionalized hydrogels, multiplex target detection occurs via serial rounds of chemical stripping (incubation with sodium-dodecyl-sulfate (SDS) and β-mercaptoethanol at 50-60 °C for ≥1 h), followed by reprobing (interrogation with additional antibody probes). Although benzophenone facilitates covalent immobilization of proteins to the hydrogel, we observe 50% immunoassay signal loss of immobilized protein targets during stripping rounds. Here, we identify and characterize signal loss mechanisms during stripping and reprobing. We posit that loss of immobilized target is responsible for ≥50% of immunoassay signal loss, and that target loss is attributable to disruption of protein immobilization by denaturing detergents (SDS) and incubation at elevated temperatures. Furthermore, our study suggests that protein losses under non-denaturing conditions are more sensitive to protein structure (i.e., hydrodynamic radius), than to molecular mass (size). We formulate design guidance for multiplexed in-gel immunoassays, including that low-abundance proteins be immunoprobed first, even when targets are covalently immobilized to the gel. We also recommend careful scrutiny of the order of proteins targets detected via multiple immunoprobing cycles, based on the protein immobilization buffer composition.
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Affiliation(s)
- Anjali Gopal
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, 94720, United States
- UC Berkeley/UCSF Graduate Program in Bioengineering, University of California, Berkeley, Berkeley, California, 94720, United States
| | - Amy E Herr
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, 94720, United States.
- UC Berkeley/UCSF Graduate Program in Bioengineering, University of California, Berkeley, Berkeley, California, 94720, United States.
- Chan Zuckerberg BioHub, San Francisco, California, 94158, United States.
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