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Liu L, Cui Y, Yang Y, Zhu W, Li C, Fang M. A novel lipid droplets/lysosomes-targeting colorimetric and ratiometric fluorescent probe for Cu 2+ and its application. Spectrochim Acta A Mol Biomol Spectrosc 2023; 291:122333. [PMID: 36621028 DOI: 10.1016/j.saa.2023.122333] [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: 07/31/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
A novel multifunctional fluorescent probe LL2 was prepared via a one-step condensation reaction between 3-formyl-N-butylcarbazole and 2-Hydroxy-1-naphthylhydrazone. LL2 can work as a colorimetric probe for Cu2+, and can also selectively recognize Cu2+ via ratiometric fluorescence signal. After the addition of Cu2+, the probe LL2 responded rapidly within 5 s and reached stability within 30 s. In natural light, when Cu2+ were added to the solution, the color of probe LL2 changed from yellowish to colorless, while there was a discernible fluorescence changed from green to blue under a 365 nm UV lamp. The ratiometric fluorescence intensity (F449/F510) showed a good linear relationship (R2 = 0.9902) with Cu2+ concentration in the concentration range of 0-5 μmol/L, and the minimum detection limit was 1.96 μM. Cell imaging experiments showed that LL2 could capture fluorescence signals in the green and blue channels of HepG2 cells through fluorescence confocal microscope, and successfully recognize exogenous Cu2+ in HepG2 cells. In addition, fluorescence co-localization experiments showed that LL2 could target both lipid droplets and lysosomes. Meanwhile, LL2 could be applied to filter paper strip assay and detection of Cu2+ in actual water samples. These results indicated that probe LL2 has a good capability for monitoring Cu2+ in environment and living cells.
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Affiliation(s)
- Li Liu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China
| | - Yuanyuan Cui
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China
| | - Yixian Yang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China
| | - Weiju Zhu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, PR China.
| | - Cun Li
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, PR China; School of Materials Science and Engineering, Anhui University, Hefei 230601, PR China
| | - Min Fang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, PR China.
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2
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Li J, Yu P, Lai P, Zou J, Liu Z, Yi X, Wang W, Pan C. Regioselective Radical Reaction of Monometallofullerene Y@C 2v(9)-C 82 With N-arylbenzamidine Mediated by Silver Carbonate. Front Chem 2020; 8:593602. [PMID: 33195099 PMCID: PMC7606928 DOI: 10.3389/fchem.2020.593602] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/01/2020] [Indexed: 11/13/2022] Open
Abstract
A novel radical reaction of monometallofullerene Y@C2v(9)-C82 with N-arylbezamidine (1) is successfully conducted through catalysis with silver carbonate. The high-performance liquid chromatographic and mass spectrum results demonstrate that the reaction is highly regioselective to afford only one monoadduct (2) with an imidazoline group added on C82 cage, and computations through density functional theory reveal the addition group is attached to a specific [5, 6]-bond (C20-C76) near the Y atom. Furthermore, the analysis of prymidalization angle of the carbon atoms demonstrates the geometry of carbon cage is in favor of the regioselective formation of isomer (20, 76).
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Affiliation(s)
- Jia Li
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Pengyuan Yu
- State Key Laboratory of Materials Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Lai
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Jiajun Zou
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Zhe Liu
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Xiuguang Yi
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China
| | - Changwang Pan
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, China.,State Key Laboratory of Materials Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
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Gil-Martínez M, Santos-Ramos P, Fernández-Rodríguez M, Abraldes MJ, Rodríguez-Cid MJ, Santiago-Varela M, Fernández-Ferreiro A, Gómez-Ulla F. Pharmacological Advances in the Treatment of Age-related Macular Degeneration. Curr Med Chem 2020; 27:583-598. [PMID: 31362645 DOI: 10.2174/0929867326666190726121711] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 07/05/2019] [Accepted: 07/19/2019] [Indexed: 12/16/2022]
Abstract
Age-related macular degeneration is an acquired degenerative disease that is responsible for severe loss of vision in elderly people. There are two types: dry age-related macular degeneration and wet age-related macular degeneration. Its treatment has been improved and tries to be tailored in the future. The aim of this review is to summarize the pharmacological advances in the treatment of age-related macular degeneration. Regarding dry AMD, there is no effective treatment to reduce its progression. However, some molecules such as lampalizumab and eculizumab were under investigation, although they have shown low efficacy. Herein, in an attempt to prevent dry AMD progression, the most important studies suggested increasing the antioxidants intake and quitting the smoke habit. On the other hand, wet AMD has more developed treatment. Nowadays, the gold standard treatment is anti-VEGF injections. However, more effective molecules are currently under investigation. There are different molecules under research for dry AMD and wet AMD. This fact could help us treat our patients with more effective and lasting drugs but more clinical trials and safety studies are required in order to achieve an optimal treatment.
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Affiliation(s)
- María Gil-Martínez
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain.,Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain
| | - Paz Santos-Ramos
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain
| | - Maribel Fernández-Rodríguez
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain.,Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain.,Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Maximino J Abraldes
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain.,Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain.,Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Maria José Rodríguez-Cid
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain.,Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - María Santiago-Varela
- Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Pharmacy Department and Pharmacology Group, Univ Hospital of Santiago de Compostela (SERGAS) and Health Research Intitute (IDIS), Santiago de Compostela, Spain
| | - Francisco Gómez-Ulla
- Instituto Oftalmológico Gómez-Ulla, Santiago de Compostela, Spain.,Department of Surgery, University of Santiago de Compostela, Santiago de Compostela, Spain
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Gilbert R, Peto T, Lengyel I, Emri E. Zinc Nutrition and Inflammation in the Aging Retina. Mol Nutr Food Res 2019; 63:e1801049. [PMID: 31148351 DOI: 10.1002/mnfr.201801049] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 04/18/2019] [Indexed: 12/16/2022]
Abstract
Zinc is an essential nutrient for human health. It plays key roles in maintaining protein structure and stability, serves as catalytic factor for many enzymes, and regulates diverse fundamental cellular processes. Zinc is important in affecting signal transduction and, in particular, in the development and integrity of the immune system, where it affects both innate and adaptive immune responses. The eye, especially the retina-choroid complex, has an unusually high concentration of zinc compared to other tissues. The highest amount of zinc is concentrated in the retinal pigment epithelium (RPE) (RPE-choroid, 292 ± 98.5 µg g-1 dry tissue), followed by the retina (123 ± 62.2 µg g-1 dry tissue). The interplay between zinc and inflammation has been explored in other parts of the body but, so far, has not been extensively researched in the eye. Several lines of evidence suggest that ocular zinc concentration decreases with age, especially in the context of age-related disease. Thus, a hypothesis that retinal function could be modulated by zinc nutrition is proposed, and subsequently trialled clinically. In this review, the distribution and the potential role of zinc in the retina-choroid complex is outlined, especially in relation to inflammation and immunity, and the clinical studies to date are summarized.
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Affiliation(s)
- Rosie Gilbert
- Moorfields Eye Hospital NHS Foundation Trust, City Road, London, EC1V 2PD, UK.,UCL Institute of Ophthalmology, Bath Street, London, EC1V 2EL, UK
| | - Tunde Peto
- School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, Ireland
| | - Imre Lengyel
- UCL Institute of Ophthalmology, Bath Street, London, EC1V 2EL, UK.,School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, Ireland
| | - Eszter Emri
- School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, Ireland
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Jin P, Li Y, Magagula S, Chen Z. Exohedral functionalization of endohedral metallofullerenes: Interplay between inside and outside. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Nakagawa A, Aoyagi S, Omachi H, Ishino K, Nishino M, Rio J, Ewels C, Shinohara H. Isolation and structure determination of missing fullerenes Gd@C 74(CF 3) n through in situ trifluoromethylation. R Soc Open Sci 2018; 5:181015. [PMID: 30839731 PMCID: PMC6170568 DOI: 10.1098/rsos.181015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/29/2018] [Indexed: 05/04/2023]
Abstract
Our trifluoromethyl functionalization method enables the dissolution and isolation of missing metallofullerenes of Gd@C74(CF3) n . After multi-stage high-performance liquid chromatography purification, Gd@C74(CF3)3 and two regioisomers of Gd@C74(CF3) are isolated. X-ray crystallographic analysis reveals that all of the isolated metallofullerenes react with CF3 groups on pentagons of the D 3 h-symmetry C74 cages. Highest occupied molecular orbital-lowest unoccupied molecular orbital gaps of these trifluoromethylated derivatives, estimated by absorption spectra, are in the range 0.71-1.06 eV, consistent with density functional calculations.
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Affiliation(s)
- Ayano Nakagawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Nagoya City University, Nagoya 467-8501, Japan
| | - Haruka Omachi
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
- Research Center for Materials Science, Nagoya University, Nagoya 464-8602, Japan
| | - Katsuma Ishino
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Makiko Nishino
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Jeremy Rio
- Institut des Materiaux Jean Rouxel (IMN), Université de Nantes, CNRS UMR6502, 2 Rue de la Houssiniere, BP32229, Nantes 44322, France
| | - Chris Ewels
- Institut des Materiaux Jean Rouxel (IMN), Université de Nantes, CNRS UMR6502, 2 Rue de la Houssiniere, BP32229, Nantes 44322, France
| | - Hisanori Shinohara
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
- Institute for Advanced Research, Nagoya University, Nagoya 464-8602, Japan
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