1
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Chen B, Sultan MM, Karaletsos T. Compositional Deep Probabilistic Models of DNA-Encoded Libraries. J Chem Inf Model 2024; 64:1123-1133. [PMID: 38335055 DOI: 10.1021/acs.jcim.3c01699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
DNA-encoded library (DEL) has proven to be a powerful tool that utilizes combinatorially constructed small molecules to facilitate highly efficient screening experiments. These selection experiments, involving multiple stages of washing, elution, and identification of potent binders via unique DNA barcodes, often generate complex data. This complexity can potentially mask the underlying signals, necessitating the application of computational tools, such as machine learning, to uncover valuable insights. We introduce a compositional deep probabilistic model of DEL data, DEL-Compose, which decomposes molecular representations into their monosynthon, disynthon, and trisynthon building blocks and capitalizes on the inherent hierarchical structure of these molecules by modeling latent reactions between embedded synthons. Additionally, we investigate methods to improve the observation models for DEL count data, such as integrating covariate factors to more effectively account for data noise. Across two popular public benchmark data sets (CA-IX and HRP), our model demonstrates strong performance compared to count baselines, enriches the correct pharmacophores, and offers valuable insights via its intrinsic interpretable structure, thereby providing a robust tool for the analysis of DEL data.
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Affiliation(s)
- Benson Chen
- Insitro, South San Francisco, California 94080, United States
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2
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Nikitjuka A, Ozola M, Krims-Davis K, Žalubovskis R. Design, Synthesis, and Bioactivity Evaluations of 3-Methylenechroman-2-one Derivatives as Thioredoxin Reductase (TrxR) Inhibitors. ChemMedChem 2024; 19:e202300504. [PMID: 38063319 DOI: 10.1002/cmdc.202300504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/23/2023] [Indexed: 02/03/2024]
Abstract
We aimed to design and synthesize 3-methylenechroman-2-one derivatives and test their potency as TrxR1 inhibitors. A convenient and easy-to-handle synthetic approach to 3-methylenechroman-2-ones was developed. The in vitro inhibitory activity towards recombinant TrxR1 was determined for the obtained compounds. The most potent representatives exhibited submicromolar TrxR1 inhibition activity (IC50 varied from 0.29 μM to 10.2 μM). Structure-activity relationship analysis indicates the beneficial role of the substituent at the position C-6 of the core of chroman-2-one, where the derivatives containing halogen are the most active among the scope of compounds obtained. The most potent TrxR1 inhibitor of the series was further examined in in vitro cell-based assays to assess cytotoxic effects on various cancer cell lines, and to evaluate their influence on cell apoptosis.
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Affiliation(s)
- Anna Nikitjuka
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006, Riga, Latvia
| | - Melita Ozola
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006, Riga, Latvia
- Faculty of Pharmacy, Rīga Stradiņš University, Konsula 21, 1007, Riga, Latvia
| | | | - Raivis Žalubovskis
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006, Riga, Latvia
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena iela 3, 1048, Riga, Latvia
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3
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Stantliff TM, Hill A, Kuo ME, Neal HE, Harrod TC, Goens K, Mashuta M, Christianson AM, Krzysiak AJ. Flexibility in the bridge of chalcone derivatives is important for the inhibition of cellular growth. Bioorg Med Chem Lett 2023; 95:129467. [PMID: 37666364 DOI: 10.1016/j.bmcl.2023.129467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/22/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Chalcones and their derivatives are a privileged scaffold in medicinal chemistry, demonstrating numerous biological activities. These molecules have shown significant potential toward the development of novel cancer therapies. While much is known about modification to the chalcone aryl rings, little is known about conformations of the bridge between the aryl rings. Here we report the synthesis and biological evaluation of a series of molecules with flexible and rigid bridge conformations. Crystal structures of a select group of molecules were determined. Flexibility in the chalcone bridge containing the enone moiety was determined to be important for activity. Screening in three distinct cancer cell lines showed significant differences in the activity between the flexible and rigid conformations. Crystal structures suggest an increase in bond rotation and weakened π-bonding in the flexible chalcone bridge, which may contribute to the stronger anti-proliferative activity.
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Affiliation(s)
- Trevor M Stantliff
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Amber Hill
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Mary Elaine Kuo
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Hadley E Neal
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Tighe C Harrod
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Katy Goens
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Mark Mashuta
- University of Louisville, 2320 South Brook St., Louisville, KY 40292, United States
| | - Anna M Christianson
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States
| | - Amanda J Krzysiak
- Bellarmine University, 2001 Newburg Rd., Louisville, KY 40205, United States.
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4
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Ledoux A, Hamann C, Bonnet O, Jullien K, Quetin-Leclercq J, Tchinda A, Smadja J, Gauvin-Bialecki A, Maquoi E, Frédérich M. Bioactive Clerodane Diterpenoids from the Leaves of Casearia coriacea Vent. Molecules 2023; 28:molecules28031197. [PMID: 36770864 PMCID: PMC9918898 DOI: 10.3390/molecules28031197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Casearia coriacea Vent., an endemic plant from the Mascarene Islands, was investigated following its antiplasmodial potentialities highlighted during a previous screening. Three clerodane diterpene compounds were isolated and identified as being responsible for the antiplasmodial activity of the leaves of the plant: caseamembrin T (1), corybulosin I (2), and isocaseamembrin E (3), which exhibited half maximal inhibitory concentrations (IC50) of 0.25 to 0.51 µg/mL. These compounds were tested on two other parasites, Leishmania mexicana mexicana and Trypanosoma brucei brucei, to identify possible selectivity in one of them. Although these products possess both antileishmanial and antitrypanosomal properties, they displayed selectivity for the malaria parasite, with a selectivity index between 6 and 12 regarding antitrypanosomal activity and between 25 and 100 regarding antileishmanial activity. These compounds were tested on three cell lines, breast cancer cells MDA-MB-231, pulmonary adenocarcinoma cells A549, and pancreatic carcinoma cells PANC-1, to evaluate their selectivity towards Plasmodium. This has not enabled us to establish selectivity for Plasmodium, but has revealed the promising activity of compounds 1-3 (IC50 < 2 µg/mL), particularly against pancreatic carcinoma cells (IC50 < 1 µg/mL). The toxicity of the main compound, caseamembrin T (1), was then evaluated on zebrafish embryos to extend our cytotoxicity study to normal, non-cancerous cells. This highlighted the non-negligible toxicity of caseamembrin T (1).
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Affiliation(s)
- Allison Ledoux
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Correspondence: ; Tel.: +32-4366-43-90
| | - Carla Hamann
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Olivier Bonnet
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Kateline Jullien
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, LDRI, Université Catholique de Louvain, UCLouvain, Avenue E. Mounier, B1 72.03, B-1200 Brussels, Belgium
| | - Alembert Tchinda
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Jacqueline Smadja
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de Réunion, Avenue René Cassin 15, BP 7151, 97715 Saint-Denis, La Réunion, France
| | - Erik Maquoi
- Laboratory of Biology of Tumor and Development, GIGA/CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines, CIRM, University of Liège, Avenue Hippocrate 15, 4000 Liège, Belgium
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5
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Chalcones: Promising therapeutic agents targeting key players and signaling pathways regulating the hallmarks of cancer. Chem Biol Interact 2023; 369:110297. [PMID: 36496109 DOI: 10.1016/j.cbi.2022.110297] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
The need for innovative anticancer treatments with high effectiveness and low toxicity is urgent due to the development of malignancies that are resistant to chemotherapeutic agents and the poor specificity of existing anticancer treatments. Chalcones are 1,3-diaryl-2-propen-1-ones, which are the precursors for flavonoids and isoflavonoids. Chalcones are readily available from a wide range of natural resources and consist of very basic chemical scaffolds. Because the ease with which the synthesis it allows for the production of several chalcone derivatives. Various in-vitro and in-vivo studies indicate that naturally occurring and synthetic chalcone derivatives exhibit promising biological activities against cancer hallmarks such as proliferation, angiogenesis, invasion, metastasis, inflammation, stemness, and regulation of cancer epigenetics. According to their structure and functional groups, chalcones derivatives and their hybrid compounds exert a broad range of biological activities through targeting key elements and signaling molecules relevant to cancer progression. This review will provide valuable insights into the latest updates of chalcone groups as anticancer agents and extensively discuss their underlying molecular mechanisms of action.
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Xi J, Tian LL, Xi J, Girimpuhwe D, Huang C, Ma R, Yao X, Shi D, Bai Z, Wu QX, Fang J. Alterperylenol as a Novel Thioredoxin Reductase Inhibitor Induces Liver Cancer Cell Apoptosis and Ferroptosis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15763-15775. [PMID: 36472370 DOI: 10.1021/acs.jafc.2c05339] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Natural products are a rich resource for discovering innovational drugs. Herein, we isolated and characterized two compounds dihydroalterperylenol (DAP) and alterperylenol (AP) from Alternaria sp. MG1, an endophytic fungus isolated from Vitis quinquangularis, and investigated the underlying antitumor mechanism of AP. Mechanistically, AP inhibits the growth of HepG2 cells by targeting the selenoprotein thioredoxin reductase (TrxR) and ultimately induces cell apoptosis and ferroptosis. Compared to DAP, the α,β-unsaturated carbonyl structure of AP is an indispensable moiety for its antitumor activity and TrxR inhibition. Specifically, inhibition of TrxR causes the extensive reactive oxygen species and consequently results in DNA damage, G2/M cell cycle arrest, and mitochondrial fission. Furthermore, ferroptosis is driven via excess toxic lipid peroxidation and elevation of intracellular iron levels via regulating iron-related proteins. In vivo validation also shows that AP owns anticancer activity in xenograft mice. Collectively, our results disclose a novel natural TrxR inhibitor AP exerting the antitumor effect via inducing cell apoptosis and ferroptosis and evidence that AP is a promising candidate agent for liver carcinoma therapy. The link of TrxR inhibition to ferroptosis further highlights the physiological importance of TrxR in regulating ferroptosis.
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Affiliation(s)
- Junmin Xi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Li-Li Tian
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Jiahui Xi
- General Surgery Department, Key Laboratory of Biotherapy and Regenerative Medicine, The First Hospital of Lanzhou University, Lanzhou730000, Gansu Province, China
| | - Desire Girimpuhwe
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Chongfei Huang
- General Surgery Department, Key Laboratory of Biotherapy and Regenerative Medicine, The First Hospital of Lanzhou University, Lanzhou730000, Gansu Province, China
| | - Ruixia Ma
- General Surgery Department, Key Laboratory of Biotherapy and Regenerative Medicine, The First Hospital of Lanzhou University, Lanzhou730000, Gansu Province, China
| | - Xiaojun Yao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Danfeng Shi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Zhongtian Bai
- General Surgery Department, Key Laboratory of Biotherapy and Regenerative Medicine, The First Hospital of Lanzhou University, Lanzhou730000, Gansu Province, China
| | - Quan-Xiang Wu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu210094, China
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7
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Biodereplication of Antiplasmodial Extracts: Application of the Amazonian Medicinal Plant Piper coruscans Kunth. Molecules 2022; 27:molecules27217638. [DOI: 10.3390/molecules27217638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/01/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
Improved methodological tools to hasten antimalarial drug discovery remain of interest, especially when considering natural products as a source of drug candidates. We propose a biodereplication method combining the classical dereplication approach with the early detection of potential antiplasmodial compounds in crude extracts. Heme binding is used as a surrogate of the antiplasmodial activity and is monitored by mass spectrometry in a biomimetic assay. Molecular networking and automated annotation of targeted mass through data mining were followed by mass-guided compound isolation by taking advantage of the versatility and finely tunable selectivity offered by centrifugal partition chromatography. This biodereplication workflow was applied to an ethanolic extract of the Amazonian medicinal plant Piper coruscans Kunth (Piperaceae) showing an IC50 of 1.36 µg/mL on the 3D7 Plasmodium falciparum strain. It resulted in the isolation of twelve compounds designated as potential antiplasmodial compounds by the biodereplication workflow. Two chalcones, aurentiacin (1) and cardamonin (3), with IC50 values of 2.25 and 5.5 µM, respectively, can be considered to bear the antiplasmodial activity of the extract, with the latter not relying on a heme-binding mechanism. This biodereplication method constitutes a rapid, efficient, and robust technique to identify potential antimalarial compounds in complex extracts such as plant extracts.
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8
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Synthesis and SAR Analysis of Novel 4-Hydroxytamoxifen Analogues Based on Their Cytotoxic Activity and Electron-Donor Character. Molecules 2022; 27:molecules27196758. [PMID: 36235291 PMCID: PMC9573586 DOI: 10.3390/molecules27196758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/02/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Utilizing McMurry reactions of 4,4′-dihydroxybenzophenone with appropriate carbonyl compounds, a series of 4-Hydroxytamoxifen analogues were synthesized. Their cytotoxic activity was evaluated in vitro on four human malignant cell lines (MCF-7, MDA-MB 231, A2058, HT-29). It was found that some of these novel Tamoxifen analogues show marked cytotoxicity in a dose-dependent manner. The relative ROS-generating capability of the synthetized analogues was evaluated by cyclic voltammetry (CV) and DFT modeling studies. The results of cell-viability assays, CV measurements and DFT calculations suggest that the cytotoxicity of the majority of the novel compounds is mainly elicited by their interactions with cellular targets including estrogen receptors rather than triggered by redox processes. However, three novel compounds could be involved in ROS-production and subsequent formation of quinone-methide preventing proliferation and disrupting the redox balance of the treated cells. Among the cell lines studied, HT-29 proved to be the most susceptible to the treatment with compounds having ROS-generating potency.
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9
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NO news: S-(de)nitrosylation of cathepsins and their relationship with cancer. Anal Biochem 2022; 655:114872. [PMID: 36027970 DOI: 10.1016/j.ab.2022.114872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/22/2022]
Abstract
Tumor formation and progression have been much of a study over the last two centuries. Recent studies have seen different developments for the early diagnosis and treatment of the disease; some of which even promise survival of the patient. Cysteine proteases, mainly cathepsins have been unequivocally identified as putative worthy players of redox imbalance that contribute to the premonition and further progression of cancer by interfering in the normal extracellular and intracellular proteolysis and initiating a proteolytic cascade. The present review article focuses on the study of cancer so far, while establishing facts on how future studies focused on the cellular interrelation between nitric oxide (NO) and cancer, can direct their focus on cathepsins. For a tumor cell to thrive and synergize a cancerous environment, different mutations in the proteolytic and signaling pathways and the proto-oncogenes, oncogenes, and the tumor suppressor genes are made possible through cellular biochemistry and some cancer-stimulating environmental factors. The accumulated findings show that S-nitrosylation of cathepsins under the influence of NO-donors can prevent the invasion of cancer and cause cancer cell death by blocking the activity of cathepsins as well as the major denitrosylase systems using a multi-way approach. Faced with a conundrum of how to fill the gap between the dodging of established cancer hallmarks with cathepsin activity and gaining appropriate research/clinical accreditation using our hypothesis, the scope of this review also explores the interplay and crosstalk between S-nitrosylation and S-(de)nitrosylation of this protease and highlights the utility of charging thioredoxin (Trx) reductase inhibitors, low-molecular-weight dithiols, and Trx mimetics using efficient drug delivery system to prevent the denitrosylation or regaining of cathepsin activity in vivo. In foresight, this raises the prospect that drugs or novel compounds that target cathepsins taking all these factors into consideration could be deployed as alternative or even better treatments for cancer, though further research is needed to ascertain the safety, efficiency and effectiveness of this approach.
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10
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Liu XF, Wang Q, Zheng JF, Chai ZH, Dai F, Jin XJ, Zhou B. Developing dietary curcumin mono-carbonyl piperidinone analogs as Nrf2-dependent cytoprotectors against oxidative damage: Structure-activity relationship and mechanisms. Free Radic Biol Med 2022; 186:66-75. [PMID: 35550920 DOI: 10.1016/j.freeradbiomed.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 12/15/2022]
Abstract
Developing nuclear factor erythroid-2 related factor 2 (Nrf2)-dependent cytoprotectors against oxidative damage is of concern because they can effectively reduce the risk of oxidative stress-related diseases, such as cancer and inflammation. This work was aimed to develop more active Nrf2-dependent cytoprotectors than curcumin, a well-known dietary Nrf2 activator and cancer chemopreventive agent. Herein we designed a panel of curcumin-inspired mono-carbonyl piperidinone analogs differentiated by placing distinct electron-withdrawing and electron-donating groups on its two aromatic rings in the ortho, meta, or para position to the linker of α, β-unsaturated piperidinone. Among these, the ortho-fluorine-substituted CN-2F surfaced as a promising lead molecule, which was significantly superior to the parent curcumin in protecting HepG2 cells from oxidative damage induced by tert-butyl hydroperoxide. Mechanically, by virtue of its Michael receptor units and ortho-substituted mode, CN-2F activated Nrf2 signaling by covalently modifying Cys-151 and Cys-288 residues at Keap1, promoting phosphorylation of JNK, ERK and p38, as well as inhibiting Nrf2 degradation. This work reveals the structural determinants and the activity mechanisms of CN-2F as an Nrf2-dependent cytoprotector, and gives useful information on how to design curcumin-inspired Nrf2 activators and cytoprotectors.
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Affiliation(s)
- Xue-Feng Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China; School of Pharmacy, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China; College of Pharmacy, Gansu University of Traditional Chinese Medicine, 35 Dingxi East Road, Gansu, 730000, China
| | - Qi Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Jia-Fang Zheng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Zuo-Hu Chai
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Fang Dai
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China.
| | - Xiao-Jie Jin
- College of Pharmacy, Gansu University of Traditional Chinese Medicine, 35 Dingxi East Road, Gansu, 730000, China.
| | - Bo Zhou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China.
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11
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Natural compounds as inhibitors of thioredoxin reductase (TrxR1). Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3431-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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(E)-3-Arylidene-4-diazopyrrolidine-2,5-diones conveniently elaborated into cytotoxic compounds bearing primary sulfonamide and Michael acceptor moieties. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Ste. Marie EJ, Hondal RJ. Application of alpha-methyl selenocysteine as a tool for the study of selenoproteins. Methods Enzymol 2022; 662:297-329. [DOI: 10.1016/bs.mie.2021.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Zhang J, Zheng ZQ, Xu Q, Li Y, Gao K, Fang J. Onopordopicrin from the new genus Shangwua as a novel thioredoxin reductase inhibitor to induce oxidative stress-mediated tumor cell apoptosis. J Enzyme Inhib Med Chem 2021; 36:790-801. [PMID: 33733960 PMCID: PMC7993383 DOI: 10.1080/14756366.2021.1899169] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/21/2021] [Accepted: 02/26/2021] [Indexed: 02/08/2023] Open
Abstract
Isolation and identification of natural products from plants is an essential approach for discovering drug candidates. Herein we report the characterization of three sesquiterpene lactones from a new genus Shangwua, e.g. onopordopicrin (ONP), C2, and C3, and evaluation of their pharmacological functions in interfering cellular redox signaling. Compared to C2 and C3, ONP shows the most potency in killing cancer cells. Further experiments demonstrate that ONP robustly inhibits thioredoxin reductase (TrxR), which leads to perturbation of cellular redox homeostasis with the favor of oxidative stress. Knockdown of the TrxR sensitizes cells to the ONP treatment while overexpression of the enzyme reduces the potency of ONP, underpinning the correlation of TrxR inhibition to the cytotoxicity of ONP. The discovery of ONP expands the library of the natural TrxR inhibitors, and the disclosure of the action mechanism of ONP provides a foundation for the further development of ONP as an anticancer agent.
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Affiliation(s)
- Junmin Zhang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Zai-Qin Zheng
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Qianhe Xu
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Ya Li
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Kun Gao
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Jianguo Fang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
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15
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Escrivani DO, Charlton RL, Caruso MB, Burle-Caldas GA, Borsodi MPG, Zingali RB, Arruda-Costa N, Palmeira-Mello MV, de Jesus JB, Souza AMT, Abrahim-Vieira B, Freitag-Pohl S, Pohl E, Denny PW, Rossi-Bergmann B, Steel PG. Chalcones identify cTXNPx as a potential antileishmanial drug target. PLoS Negl Trop Dis 2021; 15:e0009951. [PMID: 34780470 PMCID: PMC8664226 DOI: 10.1371/journal.pntd.0009951] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/10/2021] [Accepted: 10/26/2021] [Indexed: 12/31/2022] Open
Abstract
With current drug treatments failing due to toxicity, low efficacy and resistance; leishmaniasis is a major global health challenge that desperately needs new validated drug targets. Inspired by activity of the natural chalcone 2’,6’-dihydroxy-4’-methoxychalcone (DMC), the nitro-analogue, 3-nitro-2’,4’,6’- trimethoxychalcone (NAT22, 1c) was identified as potent broad spectrum antileishmanial drug lead. Structural modification provided an alkyne containing chemical probe that labelled a protein within the parasite that was confirmed as cytosolic tryparedoxin peroxidase (cTXNPx). Crucially, labelling is observed in both promastigote and intramacrophage amastigote life forms, with no evidence of host macrophage toxicity. Incubation of the chalcone in the parasite leads to ROS accumulation and parasite death. Deletion of cTXNPx, by CRISPR-Cas9, dramatically impacts upon the parasite phenotype and reduces the antileishmanial activity of the chalcone analogue. Molecular docking studies with a homology model of in-silico cTXNPx suggest that the chalcone is able to bind in the putative active site hindering access to the crucial cysteine residue. Collectively, this work identifies cTXNPx as an important target for antileishmanial chalcones. Leishmaniasis is an insect vector-borne parasitic disease. With >350 million people world wide considered at risk, 12 million people currently infected and an economic cost that can be estimated in terms of >3.3 million working life years lost, leishmaniasis is a major global health challenge. The disease is of particular importance in Brazil. Current treatment of leishmaniasis is difficult requiring a long, costly course of drug treatment using old drugs with poor safety indications requiring close medical supervision. Moreover, resistance to current antileishmanials is growing, emphasising a major need for new drug targets. In earlier work we had identified a naturally inspired chalcone which had promising antileishmanial activity but with no known mode of action. In this work we use an analogue of this molecule as an activity based probe to identify a protein target of the chalcone. This protein, cTXNPx, has a major role in protecting the parasite against attack by reactive oxygen species in the host cell. By inhibiting this protein the parasite can no longer survive in the host. Collectively this work validates cTXNPx as a drug target with the chalcone as a lead structure for future drug discovery programmes.
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Affiliation(s)
- Douglas O. Escrivani
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Chemistry, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Rebecca L. Charlton
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Chemistry, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Marjolly B. Caruso
- Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela A. Burle-Caldas
- Department of Biosciences, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Maria Paula G. Borsodi
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Russolina B. Zingali
- Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Natalia Arruda-Costa
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Jéssica B. de Jesus
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Stefanie Freitag-Pohl
- Department of Chemistry, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Ehmke Pohl
- Department of Chemistry, Durham University, Science Laboratories, South Road, Durham, United Kingdom
- Department of Biosciences, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Paul W. Denny
- Department of Biosciences, Durham University, Science Laboratories, South Road, Durham, United Kingdom
| | - Bartira Rossi-Bergmann
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (BR-B); (PGS)
| | - Patrick G. Steel
- Department of Chemistry, Durham University, Science Laboratories, South Road, Durham, United Kingdom
- * E-mail: (BR-B); (PGS)
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Yepes AF, Arias JD, Cardona-G W, Herrera-R A, Moreno G. New class of hybrids based on chalcone and melatonin: a promising therapeutic option for the treatment of colorectal cancer. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02805-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Zhang J, Xu Q, Yang HY, Yang M, Fang J, Gao K. Inhibition of Thioredoxin Reductase by Santamarine Conferring Anticancer Effect in HeLa Cells. Front Mol Biosci 2021; 8:710676. [PMID: 34485384 PMCID: PMC8416462 DOI: 10.3389/fmolb.2021.710676] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/06/2021] [Indexed: 01/03/2023] Open
Abstract
Natural products frequently have unique physiological activities and new action mechanisms due to their structural diversity and novelty, and are an important source for innovative drugs and lead compounds. We present herein that natural product santamarine targeted thioredoxin reductase (TrxR) to weaken its antioxidative function in cells, accompanied by accumulation of high levels of reactive oxygen species (ROS), and finally induced a new mechanism of tumor cell oxidative stress-mediated apoptosis. TrxR knockdown or overexpression cell lines were employed to further evaluate the cytotoxicity of santamarine regulated by TrxR, demonstrated that TrxR played a key role in the physiological effect of santamarine on cells. Santamarine targeting TrxR reveals its previously unrecognized mechanism of antitumor and provides a basis for the further development of santamarine as a potential cancer therapeutic agent.
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Affiliation(s)
- Junmin Zhang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Qianhe Xu
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Hong-Ying Yang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Minghao Yang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Jianguo Fang
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Kun Gao
- School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
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18
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19
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Bischoff-Kont I, Fürst R. Benefits of Ginger and Its Constituent 6-Shogaol in Inhibiting Inflammatory Processes. Pharmaceuticals (Basel) 2021; 14:ph14060571. [PMID: 34203813 PMCID: PMC8232759 DOI: 10.3390/ph14060571] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 12/18/2022] Open
Abstract
Ginger (Zingiber officinale Roscoe) is widely used as medicinal plant. According to the Committee on Herbal Medicinal Products (HMPC), dried powdered ginger rhizome can be applied for the prevention of nausea and vomiting in motion sickness (well-established use). Beyond this, a plethora of pre-clinical studies demonstrated anti-cancer, anti-oxidative, or anti-inflammatory actions. 6-Shogaol is formed from 6-gingerol by dehydration and represents one of the main bioactive principles in dried ginger rhizomes. 6-Shogaol is characterized by a Michael acceptor moiety being reactive with nucleophiles. This review intends to compile important findings on the actions of 6-shogaol as an anti-inflammatory compound: in vivo, 6-shogaol inhibited leukocyte infiltration into inflamed tissue accompanied with reduction of edema swelling. In vitro and in vivo, 6-shogaol reduced inflammatory mediator systems such as COX-2 or iNOS, affected NFκB and MAPK signaling, and increased levels of cytoprotective HO-1. Interestingly, certain in vitro studies provided deeper mechanistic insights demonstrating the involvement of PPAR-γ, JNK/Nrf2, p38/HO-1, and NFκB in the anti-inflammatory actions of the compound. Although these studies provide promising evidence that 6-shogaol can be classified as an anti-inflammatory substance, the exact mechanism of action remains to be elucidated. Moreover, conclusive clinical data for anti-inflammatory actions of 6-shogaol are largely lacking.
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Affiliation(s)
- Iris Bischoff-Kont
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany;
| | - Robert Fürst
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany;
- LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG), 60325 Frankfurt, Germany
- Correspondence:
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20
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Hamilton V, Harris C, Hall CL, Potticary J, Cremeens ME, D'Ambruoso GD, Matsumoto M, Warren SD, Pridmore NE, Sparkes HA, Hall SR. Structural effects of halogen bonding in iodochalcones. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2021; 77:347-356. [PMID: 34096516 DOI: 10.1107/s2052520621002961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
The structures of three iodochalcones, functionalized with fluorine or a nitro group, have been investigated to explore the impact of different molecular electrostatic distributions on the halogen bonding within each crystal structure. The strongly withdrawing nitro group presented a switch of the halogen bond from a lateral to a linear motif. Surprisingly, this appears to be influenced by a net positive shift in charge distribution around the lateral edges of the σ-hole, making the lateral I...I bonding motif less preferable. A channel of amphoteric I...I type II halogen bonds is observed for a chalcone molecule, which was not previously reported in chalcones, alongside an example of the common synthon involving extended linear chains of I...O2N donor-acceptor halogen bonds. This work shows that halogenated chalcones may be an interesting target for developing halogen bonding as a significant tool within crystal engineering, a thus far underexplored area for this common structural motif.
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Affiliation(s)
- Victoria Hamilton
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Connah Harris
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Charlie L Hall
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Jason Potticary
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Matthew E Cremeens
- Department of Chemistry and Biochemistry, Gonzaga University, 502 E Boone Ave, Spokane, WA 99258, USA
| | - Gemma D D'Ambruoso
- Department of Chemistry and Biochemistry, Gonzaga University, 502 E Boone Ave, Spokane, WA 99258, USA
| | - Masaomi Matsumoto
- Department of Chemistry and Biochemistry, Gonzaga University, 502 E Boone Ave, Spokane, WA 99258, USA
| | - Stephen D Warren
- Department of Chemistry and Biochemistry, Gonzaga University, 502 E Boone Ave, Spokane, WA 99258, USA
| | - Natalie E Pridmore
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Hazel A Sparkes
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Simon R Hall
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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21
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Anti-inflammatory activity of ortho-trifluoromethoxy-substituted 4-piperidione-containing mono-carbonyl curcumin derivatives in vitro and in vivo. Eur J Pharm Sci 2021; 160:105756. [PMID: 33588045 DOI: 10.1016/j.ejps.2021.105756] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/11/2022]
Abstract
Curcumin was reported as an anti-inflammatory agent. However, curcumin's poor bioavailability limited its clinical utility. Here, thirty ortho-substituted mono-carbonyl curcumin derivatives, containing acetone, cyclopentanone, cyclohexanone or 4-piperidione (NH, N-methyl or N-acrylyl) moieties replacing β-diketone moiety of curcumin, were investigated for anti-inflammatory activity. Two active ortho-trifluoromethoxy-substituted 4-piperidione-containing derivatives 22 and 24 owned good cell uptake ability, and displayed excellent anti-inflammatory activity in both lipopolysaccharide-induced Raw264.7 macrophages and a dextran sulfate sodium (DSS)-induced mouse model of colitis. They inhibited the production of nitric oxide, reactive oxygen species, malonic dialdehyde and cyclooxygenase-2; and the expression of pro-inflammatory cytokines interleukin-1β, tumor necrosis factor-α and myeloperoxidase; the phosphorylation of mitogen-activated protein kinases; and the nucleus translocation of p65. What's more, 22 or 24 oral administered reduced the severity of clinical symptoms of ulcerative colitis (body weight and disease activity index), and reduced obviously DSS-induced colonic pathological damage (the colon length and histopathology analysis). These results suggested that ortho-trifluoromethoxy-substituted 4-piperidione-containing mono-carbonyl curcumin derivatives 22 and 24 were potential anti-inflammatory agents; and offered the important information for design and discovery of more potent anti-inflammatory drug candidates.
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22
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Dar'in D, Kantin G, Chupakhin E, Sharoyko V, Krasavin M. Natural-Like Spirocyclic Δ α,β -Butenolides Obtained from Diazo Homophthalimides. Chemistry 2021; 27:8221-8227. [PMID: 33848018 DOI: 10.1002/chem.202100880] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 01/07/2023]
Abstract
α-Diazo homophotalimides were reacted with various propiolic acids on Rh2 (esp)2 catalysis. The resulting propiolate esters were transformed into novel, heterocyclic Δα,β -spirobutenolides in good to excellent product yields. The approach represents a fundamentally novel entry into natural-like Δα,β -spirobutenolides present in many biologically active natural products as well as fully synthetic compounds endowed with diverse biological activities. The Δα,β -spirobutenolides thus obtained were shown to inhibit thioredoxin reductase, a selenocysteine enzyme target for cancer. Moreover, for the best compound in the series (TrxR IC50 1.49±0.08 μM), by using MALDI-TOF mass-spectrometry it was shown that it selectively binds selenocysteine in the presence of a 10-fold excess of cysteine. This validates the new compound as a promising lead for anticancer therapy development.
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Affiliation(s)
- Dmitry Dar'in
- Chair of Natural Products Chemistry, Saint Petersburg State University, Saint-Petersburg, 199034, Russian Federation
| | - Grigory Kantin
- Chair of Natural Products Chemistry, Saint Petersburg State University, Saint-Petersburg, 199034, Russian Federation
| | - Evgeny Chupakhin
- Chair of Natural Products Chemistry, Saint Petersburg State University, Saint-Petersburg, 199034, Russian Federation.,Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russian Federation
| | - Vladimir Sharoyko
- Chair of Natural Products Chemistry, Saint Petersburg State University, Saint-Petersburg, 199034, Russian Federation.,Laboratory for Cell Biotechnology, Saint Petersburg State Institute of Technology (University), Saint Petersburg, 190013, Russian Federation
| | - Mikhail Krasavin
- Chair of Natural Products Chemistry, Saint Petersburg State University, Saint-Petersburg, 199034, Russian Federation.,Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russian Federation
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23
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Ayoup MS, Abu-Serie MM, Abdel-Hamid H, Teleb M. Beyond direct Nrf2 activation; reinvestigating 1,2,4-oxadiazole scaffold as a master key unlocking the antioxidant cellular machinery for cancer therapy. Eur J Med Chem 2021; 220:113475. [PMID: 33901898 DOI: 10.1016/j.ejmech.2021.113475] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/26/2021] [Accepted: 04/11/2021] [Indexed: 01/22/2023]
Abstract
Harnessing the antioxidant cellular machinery has sparked considerable interest as an efficient anticancer strategy. Activating Nrf2, the master switch of the cellular redox system, suppresses ROS, alleviates oxidative stress, and halts cancer progression. 1,2,4-oxadiazoles are iconic direct Nrf2 activators that disrupt Nrf2 interaction with its endogenous repressor Keap1. This study introduces rationally designed 1,2,4-oxadiazole derivatives that inhibit other Nrf2 suppressors (TrxR1, IKKα, and NF-kB) thus enhancing Nrf2 activation for preventing oxidative stress and carcinogenesis. Preliminary screening showed that the phenolic oxadiazoles 11, 15, and 19 were comparable to ascorbic acid (ROS scavenging) and EDTA (iron chelation), and superior to doxorubicin against HepG-2, MDA-MB231, and Caco-2 cells. They suppressed ROS by 3 folds and activated Nrf2 by 2 folds in HepG-2 cells. Mechanistically, they inhibited TrxR1 (IC50; 13.19, 17.89, and 9.21 nM) and IKKα (IC50; 11.0, 15.94, and 19.58 nM), and downregulated NF-κB (7.6, 1.4 and 1.9 folds in HepG-2), respectively. They inhibited NADPH oxidase (IC50; 16.4, 21.94, and 10.71 nM, respectively) that potentiates their antioxidant activities. Docking studies predicted their important structural features. Finally, they recorded drug-like in silico physicochemical properties, ADMET, and ligand efficiency metrics.
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Affiliation(s)
- Mohammed Salah Ayoup
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, 21321, Egypt.
| | - Marwa M Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, SRTA-City, Egypt
| | - Hamida Abdel-Hamid
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, 21321, Egypt
| | - Mohamed Teleb
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.
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24
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Chupakhin E, Krasavin M. Thioredoxin reductase inhibitors: updated patent review (2017-present). Expert Opin Ther Pat 2021; 31:745-758. [PMID: 33666133 DOI: 10.1080/13543776.2021.1899160] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: Thioredoxin reductase (TrxR) is a selenocysteine-containing enzyme which is responsible - as a part of the thioredoxin system - for maintaining redox homeostasis in cells. It is upregulated in cancerous state as a defense against oxidative stress. TrxR has been mostly considered an anticancer drug target although it has applications in other therapeutic areas such as neurodegeneration, inflammation, microbial infections, and neonatal hyperoxic lung injury.Areas covered: The present review covers the patent literature that appeared in the period 2017-2020, i.e. since the publication of the previous expert opinion patent review on TrxR inhibitors. The recent additions to the following traditional classes of inhibitors are discussed: metal complexes, Michael acceptors as well as arsenic and selenium compounds. At the same time, a novel group of nitro (hetero)aromatic compounds have emerged which likely acts via covalent inhibition mechanism. Several miscellaneous chemotypes are grouped under Miscellaneous subsection.Expert opinion: While specificity over glutathione reductase is achieved easily, TrxR is still moving toward the later stages of development at a very slow rate. Michael acceptors, particularly based on TRXR substrate-mimicking scaffolds, are gaining impetus and so are dual and hybrid compounds. The development prospects of the emerging nitro (hetero)aromatic chemotypes remain uncertain.
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Affiliation(s)
- Evgeny Chupakhin
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg Russian Federation.,Institute for Living Systems, Immanuel Kant Baltic Federal University, Kaliningrad Russian Federation
| | - Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg Russian Federation.,Institute for Living Systems, Immanuel Kant Baltic Federal University, Kaliningrad Russian Federation
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25
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V RS, C R. Crystal structure determination, hirshfeld surface analysis and quantum computational studies of (3E,5E)-1-ethyl-3,5-bis (naphthalen-1-yl-methylidene) piperidin-4-one: A novel RORc inhibitor. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Santos KLB, Queiroz AN, Lobato CC, Vale JKL, Santos CBR, Borges RS. A comparative theoretical mechanism on simplified flavonoid derivatives and isoxazolone analogous as Michael system inhibitor. J Mol Model 2021; 27:26. [PMID: 33410998 DOI: 10.1007/s00894-020-04647-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/13/2020] [Indexed: 11/29/2022]
Abstract
Flavonoids are a big class of natural product and have a wide range of biological activities. Some of these applications depend on its antioxidant capacity. Nevertheless, another mechanism can be involved by means of alkylation reaction on α,β-unsaturated carbonyl system. This study aimed to evaluate the antioxidant capacity and the chemical reactivity among simplified flavonoid derivatives and isoxazolone analogous as Michael system by using B3LYP functional and 6-311 g(d,p) basis set. Frontier molecular orbital, ionization potential (IP), spin density contributions, and Fukui index explain the antioxidant capacity and reactivity index on isoxazolone and its related derivatives. The best contribution at β-alkene moiety is related to better reactivity of α,β-unsaturated carbonyl group. A decrease in antioxidant capacity is related to an increase in the chemical reactivity index. The frontier molecular orbitals show that aurone is more reactive than isoxazolone. In accordance with Fukui index, isoxazolone can be better inhibitor as Michael system when compared to flavonoid derivatives. Graphical abstract.
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Affiliation(s)
- Kelton L B Santos
- Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Amapá, Macapá, AP, 68903-419, Brazil. .,Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
| | - Auriekson N Queiroz
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil
| | - Cleison C Lobato
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.,Campus Binacional, Universidade Federal do Amapá, Oiapoque, AP, 68980-000, Brazil
| | - Joyce K L Vale
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil
| | - Cleydson B R Santos
- Laboratório de Modelagem e Química Computacional, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, AP, 68903-419, Brazil
| | - Rosivaldo S Borges
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
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27
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Dar'in D, Kantin G, Bakulina O, Inyutina A, Chupakhin E, Krasavin M. Spirocyclizations Involving Oxonium Ylides Derived from Cyclic α-Diazocarbonyl Compounds: An Entry into 6-Oxa-2-azaspiro[4.5]decane Scaffold. J Org Chem 2020; 85:15586-15599. [PMID: 33226243 DOI: 10.1021/acs.joc.0c02356] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
New types of cyclic diazo compounds capable of Rh(II)-catalyzed spirocyclizations with tetrahydrofuran have been discovered. The formation of the spirocyclic framework is thought to proceed via the formation of Rh(II) carbene species followed by interaction with the Lewis basic oxygen atom of tetrahydrofuran to give oxonium ylide species. The latter evolves predominantly via the Stevens type rearrangement leading to an [n + 1] ring expansion of the tetrahydrofuran moiety, which results in the formation of a medicinally relevant 6-oxa-2-azaspiro[4.5]decane scaffold. The spirocyclization process was often observed in competition with mechanistically distinct C-H insertion into a tetrahydrofuran molecule. This competing process gave compounds based on the 3-(tetrahydrofur-2-yl)pyrrolidine scaffold, which are also relevant from the medicinal chemistry standpoint. These findings enrich the available arsenal of metal-catalyzed spirocyclization methods based on the use of cyclic diazo compounds.
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Affiliation(s)
- Dmitry Dar'in
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation
| | - Grigory Kantin
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation
| | - Olga Bakulina
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation
| | - Anna Inyutina
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation
| | - Evgeny Chupakhin
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation.,Immanuel Kant Baltic Federal University, Kaliningrad 236041 Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg, 199034 Russian Federation.,Immanuel Kant Baltic Federal University, Kaliningrad 236041 Russian Federation
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28
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Dar’in D, Krasavin M, Chupakhin E, Gecht M, Ivanov A, Kantin G. (E)-3-Arylidene-4-diazopyrrolidine-2,5-diones: Preparation and Use in RhII-Catalyzed X–H Insertion Reactions towards Novel, Medicinally Important Michael Acceptors. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1706556] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe use of readily available 1-aryl-3-arylidenepyrrolidine-2,5-diones in high yielding direct diazo-transfer reactions and subsequent involvement of the resulting diazo compounds in RhII-catalyzed O–H, S–H, and N–H insertion reactions delivered 4-substituted 1-aryl-3-arylidenepyrrolidine-2,5-diones of defined regiochemistry and geometrical configuration. These products are intended to be studied as Michael acceptors capable of inhibiting thioredoxin reductase, a promising cancer target.
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Affiliation(s)
- Dmitry Dar’in
- Institute of Chemistry, Saint Petersburg State University
| | - Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University
- Immanuel Kant Baltic Federal University
| | | | - Martha Gecht
- Institute of Chemistry, Saint Petersburg State University
| | | | - Grigory Kantin
- Institute of Chemistry, Saint Petersburg State University
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29
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Ste Marie EJ, Wehrle RJ, Haupt DJ, Wood NB, van der Vliet A, Previs MJ, Masterson DS, Hondal RJ. Can Selenoenzymes Resist Electrophilic Modification? Evidence from Thioredoxin Reductase and a Mutant Containing α-Methylselenocysteine. Biochemistry 2020; 59:3300-3315. [PMID: 32845139 DOI: 10.1021/acs.biochem.0c00608] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Selenocysteine (Sec) is the 21st proteogenic amino acid in the genetic code. Incorporation of Sec into proteins is a complex and bioenergetically costly process that evokes the following question: "Why did nature choose selenium?" An answer that has emerged over the past decade is that Sec confers resistance to irreversible oxidative inactivation by reactive oxygen species. Here, we explore the question of whether this concept can be broadened to include resistance to reactive electrophilic species (RES) because oxygen and related compounds are merely a subset of RES. To test this hypothesis, we inactivated mammalian thioredoxin reductase (Sec-TrxR), a mutant containing α-methylselenocysteine [(αMe)Sec-TrxR], and a cysteine ortholog TrxR (Cys-TrxR) with various electrophiles, including acrolein, 4-hydroxynonenal, and curcumin. Our results show that the acrolein-inactivated Sec-TrxR and the (αMe)Sec-TrxR mutant could regain 25% and 30% activity, respectively, when incubated with 2 mM H2O2 and 5 mM imidazole. In contrast, Cys-TrxR did not regain activity under the same conditions. We posit that Sec enzymes can undergo a repair process via β-syn selenoxide elimination that ejects the electrophile, leaving the enzyme in the oxidized selenosulfide state. (αMe)Sec-TrxR was created by incorporating the non-natural amino acid (αMe)Sec into TrxR by semisynthesis and allowed for rigorous testing of our hypothesis. This Sec derivative enables higher resistance to both oxidative and electrophilic inactivation because it lacks a backbone Cα-H, which prevents loss of selenium through the formation of dehydroalanine. This is the first time this unique amino acid has been incorporated into an enzyme and is an example of state-of-the-art protein engineering.
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Affiliation(s)
- Emma J Ste Marie
- Department of Biochemistry, University of Vermont, 89 Beaumont Avenue, Burlington, Vermont 05405, United States.,Department of Chemistry, Discovery Hall, University of Vermont, 82 University Place, Burlington, Vermont 05405, United States
| | - Robert J Wehrle
- School of Mathematics and Natural Sciences, Chemistry and Biochemistry, University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406, United States
| | - Daniel J Haupt
- Department of Chemistry, Discovery Hall, University of Vermont, 82 University Place, Burlington, Vermont 05405, United States
| | - Neil B Wood
- Department of Molecular Physiology & Biophysics, University of Vermont, 89 Beaumont Avenue, Burlington, Vermont 05405, United States
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, University of Vermont, 149 Beaumont Avenue, Burlington, Vermont 05405, United States
| | - Michael J Previs
- Department of Molecular Physiology & Biophysics, University of Vermont, 89 Beaumont Avenue, Burlington, Vermont 05405, United States
| | - Douglas S Masterson
- School of Mathematics and Natural Sciences, Chemistry and Biochemistry, University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406, United States
| | - Robert J Hondal
- Department of Biochemistry, University of Vermont, 89 Beaumont Avenue, Burlington, Vermont 05405, United States.,Department of Chemistry, Discovery Hall, University of Vermont, 82 University Place, Burlington, Vermont 05405, United States
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30
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Mohamed MFA, Abuo-Rahma GEDA. Molecular targets and anticancer activity of quinoline-chalcone hybrids: literature review. RSC Adv 2020; 10:31139-31155. [PMID: 35520674 PMCID: PMC9056499 DOI: 10.1039/d0ra05594h] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 07/30/2020] [Indexed: 01/01/2023] Open
Abstract
α,β-Unsaturated chalcone moieties and quinoline scaffolds play an important role in medicinal chemistry, especially in the identification and development of potential anticancer agents. The multi-target approach or hybridization is considered as a promising strategy in drug design and discovery. Hybridization may improve the affinity and potency while simultaneously decreasing the resistance and/or side effects. The conjugation of quinolines with chalcones has been a promising approach to the identification of potential anticancer agents. Most of these hybrids showed anticancer activities through the inhibition of tubulin polymerization, different kinases, topoisomerases, or by affecting DNA cleavage activity. Accordingly, this class of compounds can be classified based on their molecular modes of action. In this article, the quinolone-chalcone hybrids with potential anticancer activity have been reviewed. This class of compounds might be helpful for the design, discovery and development of new and potential multi-target anticancer agents or drugs.
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Affiliation(s)
- Mamdouh F A Mohamed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sohag University 82524 Sohag Egypt (+20)-1018384461
| | - Gamal El-Din A Abuo-Rahma
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University Minia 61519 Egypt +201003069431
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31
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Yang J, Mu WW, Liu GY. Synthesis and evaluation of the anticancer activity of bischalcone analogs in human lung carcinoma (A549) cell line. Eur J Pharmacol 2020; 888:173396. [PMID: 32798508 DOI: 10.1016/j.ejphar.2020.173396] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/17/2020] [Accepted: 07/22/2020] [Indexed: 12/14/2022]
Abstract
Bischalcone has gained much attention because of its wide range of application in pharmaceutical chemistry. This work aims to evaluate the antiproliferation effects and explore the anticancer mechanism of bischalcone analogs on human lung cancer A549 cells. In this study, we synthesized a series of bischalcone analogs via Aldol condensation reaction; MTT method was used to evaluate the antiproliferation effects; the 2',7'-dichlorofluorescein fluorescence assay was used to determine the intracellular reactive oxygen species levels; the glutathione reductase-DTNB recycling assay was used to detect the redox imbalance; determination of thiobarbituric acid-reactive substance was used to evaluate the lipid peroxidation; Rhodamine 123 was used to test the mitochondrial membrane potential (MMP); the FITC/PI kit was used to detect the apoptosis; Western blotting was used to detect the expression of Bax and Caspase 3. After treatment with curcumin and bischalcone analogs, compounds 1d and 1g, the more stabilities compounds than curcumin, exhibited much higher potency in A549 cells than curcumin and other bischalcone analogs. Further mechanism of action studies revealed that 1d and 1g exhibited more stronger reactive oxygen species production abilities than curcumin and accompanied by the redox imbalance, lipid peroxidation, the loss of MMP, the activition of Bax and Caspase 3, and ultimately resulted in apoptosis of A549 cell. These data suggest that enhancing the reactive oxygen species generation ability of bischalcone analogs may be a promising strategy for the treatment of human lung cancer.
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Affiliation(s)
- Jie Yang
- School of Pharmacy, Liaocheng University, 1 Hunan Street, Liaocheng, Shandong, 252000, China.
| | - Wen-Wen Mu
- School of Pharmacy, Liaocheng University, 1 Hunan Street, Liaocheng, Shandong, 252000, China
| | - Guo-Yun Liu
- School of Pharmacy, Liaocheng University, 1 Hunan Street, Liaocheng, Shandong, 252000, China
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32
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Dar’in D, Krasavin M, Inyutina A, Chupakhin E. A Novel Approach to Substituted α-Carbamoyl Phosphonates: Useful Reagents for the Horner–Wadsworth–Emmons Olefination. Synlett 2020. [DOI: 10.1055/s-0040-1707200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
α-Carbamoyl phosphonates are useful reagents for the Horner–Wadsworth–Emmons olefination of aldehydes en route to medicinally relevant polysubstituted acrylamides. A new synthetic approach to these reagents has been developed. The methodology relies on the microwave-promoted Wolff rearrangement of α-acyl-α-diazophosphonates with trapping of the ketene intermediate in situ with various amines.
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Affiliation(s)
| | - Mikhail Krasavin
- Saint Petersburg State University
- Immanuel Kant Baltic Federal University
| | | | - Evgeny Chupakhin
- Saint Petersburg State University
- Immanuel Kant Baltic Federal University
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33
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A. C. A. Bayrakdar T, Scattolin T, Ma X, Nolan SP. Dinuclear gold(i) complexes: from bonding to applications. Chem Soc Rev 2020; 49:7044-7100. [DOI: 10.1039/d0cs00438c] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The last two decades have seen a veritable explosion in the use of gold(i) complexes bearing N-heterocyclic carbene (NHC) and phosphine (PR3) ligands.
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Affiliation(s)
| | - Thomas Scattolin
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Xinyuan Ma
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
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34
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Rao MLN, Ramakrishna BS. Rh-Catalyzed Decarbonylative Addition of Salicylaldehydes with Vinyl Ketones: Synthesis of Taccabulins A-E. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Maddali L. N. Rao
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Boddu S. Ramakrishna
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
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35
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Yang J, Meng SS, Zhao YJ, Li GY, Ge LY, Zhang HL, Liu GY. 3,5-Bis(2-Trifluomethoxybenzylidene)-4-Piperidone Induces Apoptosis in A549 Cells Through Reactive Oxygen Species-Mediated Pathways. Pharm Chem J 2019. [DOI: 10.1007/s11094-019-02044-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Mechanistic insights into the inhibition mechanism of cysteine cathepsins by chalcone-based inhibitors—a QM cluster model approach. Struct Chem 2019. [DOI: 10.1007/s11224-018-1273-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Liu T, Zhang J, Han X, Xu J, Wu Y, Fang J. Promotion of HeLa cells apoptosis by cynaropicrin involving inhibition of thioredoxin reductase and induction of oxidative stress. Free Radic Biol Med 2019; 135:216-226. [PMID: 30880248 DOI: 10.1016/j.freeradbiomed.2019.03.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/11/2019] [Accepted: 03/11/2019] [Indexed: 12/30/2022]
Abstract
Cancer is considered as one of the highly mortal diseases globally. This is largely due to the lack of efficacious medicines for tumors, and thus development of potent anticancer agents is urgently needed. The thioredoxin (Trx) system is crucial to the survival ability of cells and its expression is up-regulated in many human tumors. Recently, increasing evidence has been established that mammalian thioredoxin reductase (TrxR), a selenocysteine-containing protein and the core component of the thioredoxin system, is a promising therapeutic target. The sesquiterpene lactone compound cynaropicrin (CYN), a major component of Cynara scolymus L., has shown multiple pharmacological functions, especially the anticancer effect, in many experimental models. Most of these functions are concomitant with the production of reactive oxygen species (ROS). Nevertheless, the target of this promising natural anticancer product in redox control has rarely been explored. In this study, we showed that CYN induces apoptosis of Hela cells. Mechanistic studies demonstrated that CYN impinges on the thioredoxin system via inhibition of TrxR, which leads to Trx oxidation and ROS accumulation in HeLa cells. Particularly, the cytotoxicity of CYN is enhanced through the genetic knockdown of TrxR, supporting the pharmacological effect of CYN is relevant to its inhibition of TrxR. Together, our studies reveal an unprecedented mechanism accounting for the anticancer effect of CYN and identify a promising therapeutic agent worthy of further development for cancer therapy.
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Affiliation(s)
- Tianyu Liu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Junmin Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China.
| | - Xiao Han
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jianqiang Xu
- School of Life Science and Medicine & Panjin Industrial Technology Institute, Dalian University of Technology, Panjin Campus, Panjin, 124221, China
| | - Yueting Wu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
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38
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Tuladhar A, Hondal RJ, Colon R, Hernandez EL, Rein KS. Effectors of thioredoxin reductase: Brevetoxins and manumycin-A. Comp Biochem Physiol C Toxicol Pharmacol 2019; 217:76-86. [PMID: 30476593 PMCID: PMC7485175 DOI: 10.1016/j.cbpc.2018.11.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 02/03/2023]
Abstract
The activities of two effectors, brevetoxin (PbTx) and manumycin-A (Man-A), of thioredoxin reductase (TrxR) have been evaluated against a series of fourteen TrxR orthologs originating from mammals, insects and protists and several mutants. Man-A, a molecule with numerous electrophilic sites, forms a covalent adduct with most selenocystine (Sec)-containing TrxR enzymes. The evidence also demonstrates that Man-A can form covalent adducts with some non-Sec-containing enzymes. The activities of TrxR enzymes towards various substrates are moderated by Man-A either positively or negatively depending on the enzyme. In general, the reduction of substrates by Sec-containing TrxR is inhibited and NADPH oxidase activity is activated. For non-Sec-containing TrxR the effect of Man-A on the reduction of substrates is variable, but NADPH oxidase activity can be activated even in the absence of covalent modification of TrxR. The effect of PbTx is less pronounced. A smaller subset of enzymes is affected by PbTx. With a single exception, the activities of most of this subset are activated. Although both PbTx variants can react with selenocysteine, a stable covalent adduct is not formed with any of the TrxR enzymes. The key findings from this work are (i) the identification of an alternate mechanism of toxicity for the algal toxin brevetoxin (ii) the demonstration that covalent modification of TrxR is not a prerequisite for the activation of NADPH oxidase activity of TrxR and (iii) the identification of an inhibitor which can discriminate between cytosolic and mitochondrial TrxR.
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Affiliation(s)
- Anupama Tuladhar
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, United States
| | - Robert J Hondal
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room 413B, Burlington, VT 05405, United States
| | - Ricardo Colon
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, United States
| | - Elyssa L Hernandez
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, United States
| | - Kathleen S Rein
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, United States.
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39
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Wang JR, Luo YH, Piao XJ, Zhang Y, Feng YC, Li JQ, Xu WT, Zhang Y, Zhang T, Wang SN, Xue H, Wang WZ, Cao LK, Jin CH. Mechanisms underlying isoliquiritigenin-induced apoptosis and cell cycle arrest via ROS-mediated MAPK/STAT3/NF-κB pathways in human hepatocellular carcinoma cells. Drug Dev Res 2019; 80:461-470. [PMID: 30698296 DOI: 10.1002/ddr.21518] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/30/2018] [Accepted: 01/14/2019] [Indexed: 12/13/2022]
Abstract
Isoliquiritigenin (ISL), a natural flavonoid isolated from plant licorice, has various pharmacological properties, including anticancer, anti-inflammatory, and antiviral effects. However, the underlying mechanisms and signaling pathways of ISL in human hepatocellular carcinoma (HCC) cells remain unknown. In this study, we evaluated the effects of ISL on the apoptosis of human HCC cells with a focus on reactive oxygen species (ROS) production. Our results showed that ISL exhibited cytotoxic effects on two human liver cancer cells in a dose-dependent manner. ISL significantly induced mitochondrial-related apoptosis and cell cycle arrest at the G2/M phase, which was accompanied by ROS accumulation in HepG2 cells. However, pretreatment with an ROS scavenger, N-acetyl-l-cysteine (NAC), inhibited ISL-induced apoptosis. In addition, ISL increased the phosphorylation levels of c-Jun N-terminal kinase (JNK), p38 kinase and inhibitor of NF-κB (IκB), and decreased the phosphorylation levels of extracellular signal-regulated kinase (ERK), signal transducer and activator of transcription 3 (STAT3), nuclear factor-kappa B (NF-κB), these effects were blocked by NAC and mitogen-activated protein kinase (MAPK) inhibitors. Taken together, the findings of this study indicate that ISL induced HepG2 cell apoptosis via ROS-mediated MAPK, STAT3, and NF-κB signaling pathways. Therefore, ISL may be a potential treatment for human HCC, as well as other cancer types.
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Affiliation(s)
- Jia-Ru Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Ying-Hua Luo
- Department of Grass Science, College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Xian-Ji Piao
- Department of Gynaecology and Obstetrics, The Fifth Affiliated Hospital of Harbin Medical University, Daqing, China
| | - Yi Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yu-Chao Feng
- Department of Food Science and Engineering, College of Food Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jin-Qian Li
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Wan-Ting Xu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yu Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Tong Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Shi-Nong Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Hui Xue
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Wen-Zhong Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Long-Kui Cao
- Department of Food Science and Engineering, College of Food Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Cheng-Hao Jin
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China.,Department of Food Science and Engineering, College of Food Science & Technology, Heilongjiang Bayi Agricultural University, Daqing, China
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40
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Ozgencli I, Budak H, Ciftci M, Anar M. Lichen Acids May Be Used as A Potential Drug For Cancer Therapy; by Inhibiting Mitochondrial Thioredoxin Reductase Purified From Rat Lung. Anticancer Agents Med Chem 2019; 18:1599-1605. [DOI: 10.2174/1871520618666180525095520] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/10/2018] [Accepted: 05/18/2018] [Indexed: 11/22/2022]
Abstract
Background:
Thioredoxin reductase (E.C 1.6.4.5.; TrxR) is a widely distributed flavoprotein that
catalyzes the NADPH-dependent reduction of thioredoxin (Trx) in many cellular events such as DNA synthesis,
DNA repair, angiogenesis, antioxidative defense, and regulating apoptosis. Although TrxR is indispensible in
protecting cells against oxidative stress, the overexpression of TrxR is seen in many aggressive tumors. Therefore,
targeted inhibition of TrxR has been accepted as a new approach for chemotherapy.
Objective:
In this study, in vitro inhibition effect of the lichen acids (diffractaic, evernic, lobaric, lecanoric, and
vulpinic acid) on mitochondrial TrxR purified from rat lung was investigated.
Method:
It was the first time the enzyme was purified from rat lungs by using 2’, 5’-ADP Sepharose 4B affinity
chromatography. The purity of the enzyme was checked with SDS-PAGE. In vitro inhibition effect of the lichen
acids was investigated spectrophotometrically. To emphasize the importance of the obtained data, the commercial
anticancer drugs cisplatin and doxorubicin were used as positive controls.
Results:
Molecular mass of the enzyme was calculated as approximately 52.4 kDa. The enzyme was purified
with a 63.6% yield, 208.3 fold, and 0.5 EU/mg proteins specific activity. The IC50 values of five lichen acids
were significantly lower than IC50 values of anticancer drugs.
Conclusion:
All of the lichen acids, especially lecanoric and vulpinic acid, exhibited much stronger inhibitory
effect on TrxR than the anticancer drugs cisplatin and doxorubicin. These lichen acids have pharmacological
potential as effective natural antioxidants, antimicrobials, and anticancer agents.
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Affiliation(s)
- Ilknur Ozgencli
- Department of Chemisrty, Science Faculty, Ataturk University, Erzurum, Turkey
| | - Harun Budak
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey
| | - Mehmet Ciftci
- Department of Chemisrty, Art and Science Faculty, Bingol University, Bingol, Turkey
| | - Mustafa Anar
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey
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41
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Scalcon V, Bindoli A, Rigobello MP. Significance of the mitochondrial thioredoxin reductase in cancer cells: An update on role, targets and inhibitors. Free Radic Biol Med 2018; 127:62-79. [PMID: 29596885 DOI: 10.1016/j.freeradbiomed.2018.03.043] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/21/2018] [Accepted: 03/24/2018] [Indexed: 12/26/2022]
Abstract
Thioredoxin reductase 2 (TrxR2) is a key component of the mitochondrial thioredoxin system able to transfer electrons to peroxiredoxin 3 (Prx3) in a reaction mediated by thioredoxin 2 (Trx2). In this way, both the level of hydrogen peroxide and thiol redox state are modulated. TrxR2 is often overexpressed in cancer cells conferring apoptosis resistance. Due to their exposed flexible arm containing selenocysteine, both cytosolic and mitochondrial TrxRs are inhibited by a large number of molecules. The various classes of inhibitors are listed and the molecules acting specifically on TrxR2 are extensively described. Particular emphasis is given to gold(I/III) complexes with phosphine, carbene or other ligands and to tamoxifen-like metallocifens. Also chemically unrelated organic molecules, including natural compounds and their derivatives, are taken into account. An important feature of many TrxR2 inhibitors is provided by their nature of delocalized lipophilic cations that allows their accumulation in mitochondria exploiting the organelle membrane potential. The consequences of TrxR2 inhibition are presented focusing especially on the impact on mitochondrial pathophysiology. Inhibition of TrxR2, by hindering the activity of Trx2 and Prx3, increases the mitochondrial concentration of reactive oxygen species and shifts the thiol redox state toward a more oxidized condition. This is reflected by alterations of specific targets involved in the release of pro-apoptotic factors such as cyclophilin D which acts as a regulator of the mitochondrial permeability transition pore. Therefore, the selective inhibition of TrxR2 could be utilized to induce cancer cell apoptosis.
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Affiliation(s)
- Valeria Scalcon
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy.
| | - Alberto Bindoli
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; Institute of Neuroscience (CNR), Padova Section, c/o Department of Biomedical Sciences, Viale G. Colombo 3, 35131 Padova, Italy
| | - Maria Pia Rigobello
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy.
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42
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Studying the cytotoxicity of coumarin–chalcone hybrids by a prooxidant strategy in A549 cells. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2273-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Lu S, Obianom ON, Ai Y. Novel hybrids derived from aspirin and chalcones potently suppress colorectal cancer in vitro and in vivo. MEDCHEMCOMM 2018; 9:1722-1732. [PMID: 30429977 DOI: 10.1039/c8md00284c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/23/2018] [Indexed: 01/06/2023]
Abstract
Colorectal cancer (CRC) remains the fourth leading cause of cancer deaths around the world despite the availability of many approved small molecules for treatment. The issues lie in the potency, selectivity and targeting of these compounds. Therefore, new strategies and targets are needed to optimize and develop novel treatments for CRC. Here, a group of novel hybrids derived from aspirin and chalcones were designed and synthesized based on recent reports of their individual benefits to CRC targeting and selectivity. The most active compound 7h inhibited proliferation of CRC cell lines with better potency compared to 5-fluorouracil, a currently used therapeutic agent for CRC. Importantly, 7h had 8-fold less inhibitory activity against non-cancer CCD841 cells. In addition, 7h inhibited CRC growth via the inhibition of the cell cycle in the G1 phase. Furthermore, 7h induced apoptosis by activating caspase 3 and PARP cleavage, as well as increasing ROS in CRC cells. Finally, 7h significantly retarded the CRC cell growth in a mouse xenograft model. These findings suggest that 7h may have potential to treat CRC.
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Affiliation(s)
- Shan Lu
- College of Pharmacy , Hubei University of Chinese Medicine , Hubei 430065 , PR China .
| | - Obinna N Obianom
- Department of Pharmaceutical Sciences , University of Maryland School of Pharmacy , Baltimore , MD 21201 , USA .
| | - Yong Ai
- Department of Pharmaceutical Sciences , University of Maryland School of Pharmacy , Baltimore , MD 21201 , USA .
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44
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Zhou W, Mei YL, Li B, Guan ZY, Deng QH. Synthesis of β-Alkyl 2-Hydroxychalcones by Rhodium-Catalyzed Coupling of N-Phenoxyacetamides and Nonterminal Propargyl Alcohols. Org Lett 2018; 20:5808-5812. [DOI: 10.1021/acs.orglett.8b02504] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wei Zhou
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yan-Le Mei
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Bin Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Zhen-Yu Guan
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Qing-Hai Deng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
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Li X, Hou Y, Meng X, Ge C, Ma H, Li J, Fang J. Selective Activation of a Prodrug by Thioredoxin Reductase Providing a Strategy to Target Cancer Cells. Angew Chem Int Ed Engl 2018; 57:6141-6145. [PMID: 29582524 DOI: 10.1002/anie.201801058] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/14/2018] [Indexed: 12/19/2022]
Abstract
Elevated reactive oxygen species and antioxidant defense systems have been recognized as one of the hallmarks of cancer cells. As a major regulator of the cellular redox homeostasis, the selenoprotein thioredoxin reductase (TrxR) is increasingly considered as a promising target for anticancer drug development. The current approach to inhibit TrxR predominantly relies on the modification of the selenocysteine residue in the C-terminal active site of the enzyme, in which it is hard to avoid the off-target effects. By conjugating the anticancer drug gemcitabine with a 1,2-dithiolane scaffold, an unprecedented prodrug strategy is disclosed that achieves a specific release of gemcitabine by TrxR in cells. As overexpression of TrxR is frequently found in different types of tumors, the TrxR-dependent prodrugs are promising for further development as cancer chemotherapeutic agents.
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Affiliation(s)
- Xinming Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Yanan Hou
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Xianke Meng
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Chunpo Ge
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Huilong Ma
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Jin Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, China
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Li X, Hou Y, Meng X, Ge C, Ma H, Li J, Fang J. Selective Activation of a Prodrug by Thioredoxin Reductase Providing a Strategy to Target Cancer Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801058] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xinming Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Yanan Hou
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Xianke Meng
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Chunpo Ge
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Huilong Ma
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Jin Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering Lanzhou University China
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Kaminska KK, Bertrand HC, Tajima H, Stafford WC, Cheng Q, Chen W, Wells G, Arner ESJ, Chew EH. Indolin-2-one compounds targeting thioredoxin reductase as potential anticancer drug leads. Oncotarget 2018; 7:40233-40251. [PMID: 27244886 PMCID: PMC5130005 DOI: 10.18632/oncotarget.9579] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 04/18/2016] [Indexed: 11/25/2022] Open
Abstract
Several compounds bearing the indolinone chemical scaffold are known to possess anticancer properties. For example, the tyrosine kinase inhibitor sunitinib is an arylideneindolin-2-one compound. The chemical versatility associated with structural modifications of indolinone compounds underlies the potential to discover additional derivatives possessing anticancer properties. Previously synthesized 3-(2-oxoethylidene)indolin-2-one compounds, also known as supercinnamaldehyde (SCA) compounds in reference to the parent compound 1 [1-methyl-3(2-oxopropylidene)indolin-2-one], bear a nitrogen-linked α,β-unsaturated carbonyl (Michael acceptor) moiety. Here we found that analogs bearing N-substituents, in particular compound 4 and 5 carrying an N-butyl and N-benzyl substituent, respectively, were strongly cytotoxic towards human HCT 116 colorectal and MCF-7 breast carcinoma cells. These compounds also displayed strong thioredoxin reductase (TrxR) inhibitory activity that was likely attributed to the electrophilicity of the Michael acceptor moiety. Their selectivity towards cellular TrxR inhibition over related antioxidant enzymes glutathione reductase (GR), thioredoxin (Trx) and glutathione peroxidase (GPx) was mediated through targeting of the selenocysteine (Sec) residue in the highly accessible C-terminal active site of TrxR. TrxR inhibition mediated by indolin-2-one compounds led to cellular Trx oxidation, increased oxidative stress and activation of apoptosis signal-regulating kinase 1 (ASK1). These events also led to activation of p38 and JNK mitogen-activated protein kinase (MAPK) signaling pathways, and cell death with apoptotic features of PARP cleavage and caspase 3 activation. In conclusion, these results suggest that indolin-2-one-based compounds specifically targeting TrxR may serve as novel drug leads for anticancer therapy.
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Affiliation(s)
- Kamila K Kaminska
- Department of Pharmacy, Faculty of Science, National University of Singapore, S117543, Republic of Singapore
| | - Helene C Bertrand
- UCL School of Pharmacy, University College London, London WC1N 1AX, United Kingdom.,Current address: École Normale Supérieure, PSL Research University, Département de Chimie, Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7203 LBM, 75005 Paris, France
| | - Hisashi Tajima
- UCL School of Pharmacy, University College London, London WC1N 1AX, United Kingdom
| | - William C Stafford
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Qing Cheng
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Wan Chen
- Department of Pharmacy, Faculty of Science, National University of Singapore, S117543, Republic of Singapore
| | - Geoffrey Wells
- UCL School of Pharmacy, University College London, London WC1N 1AX, United Kingdom
| | - Elias S J Arner
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Eng-Hui Chew
- Department of Pharmacy, Faculty of Science, National University of Singapore, S117543, Republic of Singapore
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Zhang ZH, Yan Y, Deng AJ, Zhang HJ, Li ZH, Yuan TY, Fang LH, Wu LQ, Du GH, Qin HL. Synthesis of quaternary 8-(1-acylethene-1-yl)-13-methylcoptisine chlorides and their selective growth inhibitory activity between human cancer cell lines and normal intestinal epithelial cell-6. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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3,5-Bis(2-fluorobenzylidene)-4-piperidone induce reactive oxygen species-mediated apoptosis in A549 cells. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2056-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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50
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Zhuang C, Zhang W, Sheng C, Zhang W, Xing C, Miao Z. Chalcone: A Privileged Structure in Medicinal Chemistry. Chem Rev 2017; 117:7762-7810. [PMID: 28488435 PMCID: PMC6131713 DOI: 10.1021/acs.chemrev.7b00020] [Citation(s) in RCA: 757] [Impact Index Per Article: 108.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Privileged structures have been widely used as an effective template in medicinal chemistry for drug discovery. Chalcone is a common simple scaffold found in many naturally occurring compounds. Many chalcone derivatives have also been prepared due to their convenient synthesis. These natural products and synthetic compounds have shown numerous interesting biological activities with clinical potentials against various diseases. This review aims to highlight the recent evidence of chalcone as a privileged scaffold in medicinal chemistry. Multiple aspects of chalcone will be summarized herein, including the isolation of novel chalcone derivatives, the development of new synthetic methodologies, the evaluation of their biological properties, and the exploration of the mechanisms of action as well as target identification. This review is expected to be a comprehensive, authoritative, and critical review of the chalcone template to the chemistry community.
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Affiliation(s)
- Chunlin Zhuang
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Wen Zhang
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Chunquan Sheng
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Wannian Zhang
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
- School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Chengguo Xing
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, 1345 Center Drive,
Gainesville, Florida 32610, United States
| | - Zhenyuan Miao
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
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