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Zhang J, Jiang T, Song X, Li Q, Liu Y, Wang Y, Chi X, Sun J, Zhang L. The Synthesis, Characterization and Anti-Tumor Activity of a Cu-MOF Based on Flavone-6,2'-dicarboxylic Acid. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010129. [PMID: 36615323 PMCID: PMC9822075 DOI: 10.3390/molecules28010129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
A novel two-dimensional copper(II) framework (LDU-1), formulated as {[Cu2(L)2·2NMP}n (H2L = flavone-6,2'-dicarboxylic acid, NMP = N-Methyl pyrrolidone), has been constructed under solvothermal conditions and characterized by single-crystal X-ray diffraction, infrared spectroscopy (IR), thermogravimetric analysis and powder X-ray diffraction (PXRD). In the crystal structure, the Cu(II) shows hex-coordinated with the classical Cu paddle-wheel coordination geometry, and the flavonoid ligand coordinates with the Cu(II) ion in a bidentate bridging mode. Of particular interest of LDU-1 is the presence of anti-tumor activity against three human cancer cell lines including lung adenocarcinoma(A549), Michigan cancer foundation-7 (MCF-7), erythroleukemia (K562) and murine melanoma B16F10, indicating synergistic enhancement effects between metal ions and organic linkers. A cell cycle assay indicates that LDU-1 induces cells to arrest at S phase obviously at a lower concentration.
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Affiliation(s)
- Jie Zhang
- School of Life Science, Ludong University, Yantai 264025, China
| | - Tingting Jiang
- School of Life Science, Ludong University, Yantai 264025, China
| | - Xinyu Song
- School of Life Science, Ludong University, Yantai 264025, China
| | - Qing Li
- School of Life Science, Ludong University, Yantai 264025, China
| | - Yang Liu
- School of Life Science, Ludong University, Yantai 264025, China
| | - Yanhua Wang
- School of Life Science, Ludong University, Yantai 264025, China
| | - Xiaoyan Chi
- School of Life Science, Ludong University, Yantai 264025, China
| | - Jie Sun
- School of Life Science, Ludong University, Yantai 264025, China
- Correspondence:
| | - Liangliang Zhang
- Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University (NPU), Ningbo 315103, China
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Synthesis, Pharmacokinetic Characterization and Antioxidant Capacity of Carotenoid Succinates and Their Melatonin Conjugates. Molecules 2022; 27:molecules27154822. [PMID: 35956776 PMCID: PMC9369794 DOI: 10.3390/molecules27154822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 12/24/2022] Open
Abstract
Carotenoid succinates were synthesized from hydroxy carotenoids and were coupled to a commercially available derivative of melatonin via amide bond for producing more powerful anti-oxidants and yet new hybrid lipophilic bifunctional molecules with additional therapeutic effects. The coupling reactions produced conjugates in acceptable to good yields. Succinylation increased the water solubility of the carotenoids, while the conjugation with melatonin resulted in more lipophilic derivatives. The conjugates showed self-assembly in aqueous medium and yielded relatively stable colloidal solutions in phosphate-buffered saline. Antioxidant behavior was measured with ABTS and the FRAP methods for the carotenoids, the carotenoid succinates, and the conjugates with melatonin. A strong dependence on the quality of the solvent was observed. TEAC values of the new derivatives in phosphate-buffered saline were found to be comparable to or higher than those of parent carotenoids, however, synergism was observed only in FRAP assays.
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Santos Silva J, França Ferreira ÉL, Maciel Lima A, de Farias RRS, Quirino Araújo B, Quilles Junior JC, Lima Santos RR, de Amorim Carvalho FA, Rai M, Vieira Júnior GM, Chaves MH. Four new cycloartane-type triterpenoids from the leaves of Combretum mellifluum Eichler: assessment of their antioxidant and antileishmanial activities. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:364-375. [PMID: 34933666 DOI: 10.1080/15287394.2021.2015030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The beneficial pharmacological actions including antioxidant effects as an antileishmanial, antibacterial, antifungal, antidiabetic, anti-inflammatory, antitumor, antiviral, and analgesic of compounds isolated from Combretum mellifluum Eichler (Combretaceae) are well established. The aim of the present study was to determine the phytochemistry as well as assess the antioxidant and antileishmanial activities of the leaves from Combretum mellifluum Eichler (Combretaceae). Analysis of ethanolic extract resulted in isolation and identification of two epimeric mixtures of four previously unknown cycloartane-type triterpenoids, methyl quadrangularate M and methyl 24-epiquadrangularate M, and 2α,3β,24β-trihydroxy-cycloart-25-ene and 2α, 3β, 24α-trihydroxy-cycloart-25-ene, and eight known compounds. Their structures were using one-dimensional nuclear magnetic resonance (1D NMR), 2D NMR and high-resolution electrospray ionization mass spectroscopy (HRESIMS) analysis. Further, the extract and fractions were tested for antioxidant potential. The ethyl acetate and aqueous fractions demonstrated the highest antioxidant activity against 2,2-dipheny-1-picrylhydrazl (DPPH) free radicals, which correlated directly with total flavonoid content. All extracts and fractions from C. mellifluum Eichler were assessed for antileishmanial activity. The supernatant fraction exhibited highest potential, inhibiting the growth of Leishmania amazonensis with IC50 value 31.29 μg/ml. Our findings provide information on the chemical composition of C. mellifluum and the potential beneficial therapeutic usefulness as an antioxidant agent in various diseases.
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Affiliation(s)
- Jaelson Santos Silva
- Department of Chemistry, Center for Natural Sciences, Universidade Federal do Piauí, Teresina, Brazil
| | - Éverton Leandro França Ferreira
- Department of Chemistry, Center for Natural Sciences, Universidade Federal do Piauí, Teresina, Brazil
- Universidade Federal do Vale do São Francisco, Campus Serra da Capivara, São Raimundo Nonato, Brazil
| | - Amanda Maciel Lima
- Department of Chemistry, Center for Natural Sciences, Universidade Federal do Piauí, Teresina, Brazil
| | | | - Bruno Quirino Araújo
- Department of Chemistry, Center for Natural Sciences, Universidade Federal do Piauí, Teresina, Brazil
| | - José Carlos Quilles Junior
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School (FMRP), Universidade de São Paulo (USP), Brazil
| | - Rodolfo Ritchelle Lima Santos
- Department of Biochemistry and Pharmacology, Medicinal Plants Research Center, NPPM, Universidade Federal do Piauí, Teresina, Brasil
| | - Fernando Aécio de Amorim Carvalho
- Department of Biochemistry and Pharmacology, Medicinal Plants Research Center, NPPM, Universidade Federal do Piauí, Teresina, Brasil
| | - Mahendra Rai
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, India
- Department of Microbiology, Nicolaus Copernicus University, Torun, Poland
| | | | - Mariana Helena Chaves
- Department of Chemistry, Center for Natural Sciences, Universidade Federal do Piauí, Teresina, Brazil
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He Y, Li M, Wang Y, Shen S. The R2R3-MYB transcription factor MYB44 modulates carotenoid biosynthesis in Ulva prolifera. ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pereira D, Pinto M, Correia-da-Silva M, Cidade H. Recent Advances in Bioactive Flavonoid Hybrids Linked by 1,2,3-Triazole Ring Obtained by Click Chemistry. Molecules 2021; 27:230. [PMID: 35011463 PMCID: PMC8746422 DOI: 10.3390/molecules27010230] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 12/30/2022] Open
Abstract
As a result of the biological activities of natural flavonoids, several synthetic strategies aiming to obtain analogues with improved potency and/or pharmacokinetic profile have been developed. Since the triazole ring has been associated with several biological activities and metabolic stability, hybridization with a 1,2,3-triazole ring has been increasingly reported over the last years. The feasible synthesis through copper (I) catalyzed azide-alkyne cycloaddition (CuAAC) has allowed the accomplishment of several hybrids. Since 2017, almost 700 flavonoid hybrids conjugated with 1,2,3-triazole, including chalcones, flavones, flavanones and flavonols, among others, with antitumor, antimicrobial, antidiabetic, neuroprotective, anti-inflammatory, antioxidant, and antifouling activity have been reported. This review compiles the biological activities recently described for these hybrids, highlighting the mechanism of action and structure-activity relationship (SAR) studies.
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Affiliation(s)
- Daniela Pereira
- Laboratory of Organic and Pharmaceutical Chemistry (LQOF), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (D.P.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry (LQOF), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (D.P.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Marta Correia-da-Silva
- Laboratory of Organic and Pharmaceutical Chemistry (LQOF), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (D.P.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry (LQOF), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (D.P.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
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Fabrication of Functional Bioelastomer for Food Packaging from Aronia ( Aronia melanocarpa) Juice Processing By-Products. Foods 2020; 9:foods9111565. [PMID: 33126736 PMCID: PMC7692153 DOI: 10.3390/foods9111565] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
Carbon-neutral and eco-friendly biomass-based processes are recognized as a frontier technology for sustainable development. In particular, biopolymers are expected to replace petrochemical-based films that are widely used in food packaging. In this study, the fabrication conditions of functional (antioxidant and antibacterial) bioelastomers were investigated using by-products from the juice processing (experimental group) and freeze-dried whole fruit (control group). Bioelastomer was fabricated by a casting method in which polydimethylsiloxane (PDMS) was mixed with 25 or 50 wt% aronia powder (juice processing by-products and freeze-dried whole fruit). The mechanical properties of the bioelastomers were measured based on tensile strength and Young's modulus. When the mixture contained 50 wt% aronia powder, the strength was not appropriate for the intended purpose. Next, the surface and chemical properties of the bioelastomer were analyzed; the addition of aronia powder did not significantly change these properties when compared to PDMS film (no aronia powder). However, the addition of aronia powder had a significant effect on antioxidant and antimicrobial activities and showed higher activity with 50 wt% than with 25 wt%. In particular, bioelastomers fabricated from aronia juice processing by-products exhibited approximately 1.4-fold lower and 1.5-fold higher antioxidant and antimicrobial activities, respectively, than the control group (bioelastomers fabricated from freeze-dried aronia powder).
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