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Guerrero-Pepinosa NY, Veloza LA, Sepúlveda-Arias JC. The n-Butanol Extract Obtained from the Inner Bark of Tabebuia rosea (Bertol.) DC, Specioside, and Catalposide Induce Leukemia Cell Apoptosis in the Presence of Apicidin. Molecules 2024; 29:3986. [PMID: 39274835 PMCID: PMC11396062 DOI: 10.3390/molecules29173986] [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: 07/26/2024] [Revised: 08/17/2024] [Accepted: 08/19/2024] [Indexed: 09/16/2024] Open
Abstract
The cell signaling pathways involved in the antiproliferative activities of T. rosea inner bark remain unexplored. This study evaluated the apoptotic effects of two iridoids from the inner bark of T. rosea and apicidin on THP-1 cells. The cytotoxic effects of the extract and the pure compounds on THP-1 and Jurkat cells were also evaluated using the MTT assay. The apoptotic effect was determined by measuring the mitochondrial membrane potential. The expression of mRNA and MAPK kinase, Bax, and Bcl-2 proteins was detected by Western blotting and RT-qPCR, respectively. The extract and the compounds evaluated increased the percentage of apoptotic cells. Depolarization of the mitochondrial membrane was observed, and the number of cells in the G0/G1 phase increased. Catalposide and specioside significantly increased p38 protein expression, mostly in cells pretreated with apicidin. The p38 MAPK signaling pathway is at least one of the pathways by which the n-butanol extract obtained from Tabebuia rosea, catalposide, and specioside exerts its apoptotic effect on THP-1 cells, and this effect generates a response in the G0/G1 phase and subsequent cell death. In addition, there was depolarization of the mitochondrial membrane, an effect that was related to the participation of the proapoptotic protein Bax.
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Affiliation(s)
- Nancy Yadira Guerrero-Pepinosa
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira 660003, Colombia
- Facultad de Ciencias Naturales, Exactas y de la Educación, Programa de Biología, Universidad del Cauca, Popayán 190001, Colombia
| | - Luz Angela Veloza
- Grupo Polifenoles, Facultad de Tecnologías, Escuela de Química, Universidad Tecnológica de Pereira, Pereira 660003, Colombia
| | - Juan Carlos Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira 660003, Colombia
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2
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Zhang L, Wu L, Liu J, Chen K, Li Y. Iridoids and derivatives from Catalpa ovata with their antioxidant activities. Fitoterapia 2023; 169:105599. [PMID: 37391161 DOI: 10.1016/j.fitote.2023.105599] [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: 04/23/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Six new iridoid derivatives (1-6),together with twelve known compounds (7-18), were isolated and identified from the dried fruits of Catalpa ovata G. Don. Their chemical structures were mainly established through the relative spectroscopic data, while the absolute configurations of compounds 2 and 3 were elucidated on the electronic circular dichroism calculations. Their antioxidant activities were evaluated by activating the Nrf2 transcriptional pathway in 293 T cells in vitro. Among them, Compounds 1, 3, 4, 6-8, 10-12, 14, 15, 17 and 18 showed significant Nrf2 agonistic effect compared with the control group at 25 μM. Finally, The hypothetical biosynthetic pathway for 1-13 was discussed.
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Affiliation(s)
- Liuqiang Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Longlong Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Jingwen Liu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Kaixian Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Yiming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
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3
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Parisi V, Donadio G, Bellone ML, Belaabed S, Bader A, Bisio A, Iobbi V, Gazzillo E, Chini MG, Bifulco G, Faraone I, Vassallo A. Exploring the Anticancer Potential of Premna resinosa (Hochst.) Leaf Surface Extract: Discovering New Diterpenes as Heat Shock Protein 70 (Hsp70) Binding Agents. PLANTS (BASEL, SWITZERLAND) 2023; 12:2421. [PMID: 37446982 DOI: 10.3390/plants12132421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
Premna, a genus consisting of approximately 200 species, predominantly thrives in tropical and subtropical areas. Many of these species have been utilized in ethnopharmacology for diverse medicinal applications. In Saudi Arabia, Premna resinosa (Hochst.) Schauer (Lamiaceae) grows wildly, and its slightly viscid leaves are attributed to the production of leaf accession. In this study, we aimed to extract the surface accession from fresh leaves using dichloromethane to evaluate the anticancer potential. The plant exudate yielded two previously unknown labdane diterpenes, Premnaresone A and B, in addition to three already described congeners and four known flavonoids. The isolation process was accomplished using a combination of silica gel column chromatography and semi-preparative HPLC, the structures of which were identified by NMR and HRESIMS analyses and a comparison with the literature data of associated compounds. Furthermore, we employed a density functional theory (DFT)/NMR approach to suggest the relative configuration of different compounds. Consequently, we investigated the possibility of developing new chaperone inhibitors by subjecting diterpenes 1-5 to a Surface Plasmon Resonance-screening, based on the knowledge that oridonin, a diterpene, interacts with Heat Shock Protein 70 (Hsp70) 1A in cancer cells. Additionally, we studied the anti-proliferative activity of compounds 1-5 on human Jurkat (human T-cell lymphoma) and HeLa (epithelial carcinoma) cell lines, where diterpene 3 exhibited activity in Jurkat cell lines after 48 h, with an IC50 of 15.21 ± 1.0 µM. Molecular docking and dynamic simulations revealed a robust interaction between compound 3 and Hsp70 key residues.
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Affiliation(s)
- Valentina Parisi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Giuliana Donadio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Maria Laura Bellone
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Soumia Belaabed
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules Physicochemical and Biological Analysis, University Brothers Mentouri, Route Ain ElBey, Constantine 25000, Algeria
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Angela Bisio
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Valeria Iobbi
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Erica Gazzillo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Maria Giovanna Chini
- Department of Biosciences and Territory, University of Molise, C.da Fonte Lappone, 86090 Pesche, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Immacolata Faraone
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
- Innovative Startup Farmis s.r.l., Via Nicola Vaccaro 40, 85100 Potenza, Italy
| | - Antonio Vassallo
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
- Spinoff TNcKILLERS s.r.l., Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
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4
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Repositioning of Quinazolinedione-Based Compounds on Soluble Epoxide Hydrolase (sEH) through 3D Structure-Based Pharmacophore Model-Driven Investigation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123866. [PMID: 35744994 PMCID: PMC9228872 DOI: 10.3390/molecules27123866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 12/01/2022]
Abstract
The development of new bioactive compounds represents one of the main purposes of the drug discovery process. Various tools can be employed to identify new drug candidates against pharmacologically relevant biological targets, and the search for new approaches and methodologies often represents a critical issue. In this context, in silico drug repositioning procedures are required even more in order to re-evaluate compounds that already showed poor biological results against a specific biological target. 3D structure-based pharmacophoric models, usually built for specific targets to accelerate the identification of new promising compounds, can be employed for drug repositioning campaigns as well. In this work, an in-house library of 190 synthesized compounds was re-evaluated using a 3D structure-based pharmacophoric model developed on soluble epoxide hydrolase (sEH). Among the analyzed compounds, a small set of quinazolinedione-based molecules, originally selected from a virtual combinatorial library and showing poor results when preliminarily investigated against heat shock protein 90 (Hsp90), was successfully repositioned against sEH, accounting the related built 3D structure-based pharmacophoric model. The promising results here obtained highlight the reliability of this computational workflow for accelerating the drug discovery/repositioning processes.
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5
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Liew HY, Tan XY, Chan HH, Khaw KY, Ong YS. Natural HSP90 inhibitors as a potential therapeutic intervention in treating cancers: A comprehensive review. Pharmacol Res 2022; 181:106260. [DOI: 10.1016/j.phrs.2022.106260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/25/2022] [Accepted: 05/10/2022] [Indexed: 10/18/2022]
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6
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Liu S, Kong Y, Cai J, Dong C. Advances in Structural Modification and Pharmacological Activity of Catalpol and its Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202103380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuanglin Liu
- Henan University of Chinese Medicine
- Henan Polysaccharide Research Center Zhengzhou 450046 China
- Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research
| | | | - Juntao Cai
- Henan University of Chinese Medicine
- Henan Polysaccharide Research Center Zhengzhou 450046 China
- Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research
| | - Chunhong Dong
- Henan University of Chinese Medicine
- Henan Polysaccharide Research Center Zhengzhou 450046 China
- Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research
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7
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Zhu H, Cai Y, Ma S, Futamura Y, Li J, Zhong W, Zhang X, Osada H, Zou H. Privileged Biorenewable Secologanin-Based Diversity-Oriented Synthesis for Pseudo-Natural Alkaloids: Uncovering Novel Neuroprotective and Antimalarial Frameworks. CHEMSUSCHEM 2021; 14:5320-5327. [PMID: 34636473 DOI: 10.1002/cssc.202101868] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Bioprivileged molecules hold great promise for supplementing petrochemicals in sustainable organic synthesis of a diverse bioactive products library. Secologanin, a biorenewable monoterpenoid glucoside with unique structural elements, is the key precursor for thousands of natural monoterpenoid alkaloids. Inspired by its inherent highly congested functional groups, a secologanin-based diversity-oriented synthesis (DOS) strategy for novel pseudo-natural alkaloids was developed. All the reactive units of secologanin were involved in these operation simplicity protocols under mild reaction conditions, including the one-step enantioselective transformation of exocyclic C8, C8/C11, and C8/C9/C10 as well as the chemoenzymatic manipulation of endocyclic C2/C6 via the attack by various nucleophiles. A combinatory scenario of the aforementioned reactions further provided diverse polycyclic products with multiple chiral centers. Preliminary activity screening of these newly constructed molecules led to the discovery of antimalarial and highly potent neuroprotective skeletons. The application of green biorenewable secologanin in diversity-oriented pseudo-natural monoterpenoid alkaloid synthesis might encourage the pursuit of valuable bioactive frameworks.
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Affiliation(s)
- Huajian Zhu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yunrui Cai
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shijia Ma
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yushi Futamura
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Jinbiao Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Wen Zhong
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Xiangnan Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hongbin Zou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
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8
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Zadali R, Nejad-Ebrahimi S, Hadjiakhoondi A, Fiengo L, D'Ambola M, De Vita S, Tofighi Z, Chini MG, Bifulco G, De Tommasi N. Diterpenoids from Zhumeria majdae roots as potential heat shock protein 90 (HSP90) modulators. PHYTOCHEMISTRY 2021; 185:112685. [PMID: 33607577 DOI: 10.1016/j.phytochem.2021.112685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 01/29/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
Four undescribed and 17 known diterpenoids were isolated from the roots of Zhumeria majdae Rech.f. & Wendelbo. Using 1D and 2D NMR spectroscopy, ECD spectroscopy, and HRESIMS data analysis, the structures of the undescribed compounds were elucidated. The anti-proliferative activity of isolated compounds was evaluated against HeLa and MCF7 cancer cell lines. The binding affinity of all compounds to HSP90, one of the targets for the modern anticancer therapy, was investigated using surface plasmon resonance. The results demonstrated that lanugon Q interacted with the chaperone. To explain its mechanism of action, experimental and computational tests were also conducted.
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Affiliation(s)
- Reza Zadali
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy; Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran; Department of Pharmacognosy, Faculty of Pharmacy, Islamic Azad University-Damghan Branch, Iran
| | - Samad Nejad-Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran.
| | - Abbas Hadjiakhoondi
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran; Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Lorenzo Fiengo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy
| | - Massimiliano D'Ambola
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy
| | - Simona De Vita
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy
| | - Zahra Tofighi
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran; Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Maria Giovanna Chini
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy; Department of Bioscience and Territory, University of Molise, C.da Fonte Lappone, 86090, Pesche (IS), Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano (SA), Italy.
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9
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El-Hawary SS, Taher MA, Amin E, Fekry AbouZid S, Mohammed R. Genus Tabebuia: A comprehensive review journey from past achievements to future perspectives. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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10
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An extensive review on genus “Tabebuia”, family bignoniaceae: Phytochemistry and biological activities (1967 to 2018). J Herb Med 2020. [DOI: 10.1016/j.hermed.2020.100410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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11
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Zhang X, Paton RS. Stereoretention in styrene heterodimerisation promoted by one-electron oxidants. Chem Sci 2020; 11:9309-9324. [PMID: 34123173 PMCID: PMC8163378 DOI: 10.1039/d0sc03059g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Radical cations generated from the oxidation of C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C π-bonds are synthetically useful reactive intermediates for C–C and C–X bond formation. Radical cation formation, induced by sub-stoichiometric amounts of external oxidant, are important intermediates in the Woodward–Hoffmann thermally disallowed [2 + 2] cycloaddition of electron-rich alkenes. Using density functional theory (DFT), we report the detailed mechanisms underlying the intermolecular heterodimerisation of anethole and β-methylstyrene to give unsymmetrical, tetra-substituted cyclobutanes. Reactions between trans-alkenes favour the all-trans adduct, resulting from a kinetic preference for anti-addition reinforced by reversibility at ambient temperatures since this is also the thermodynamic product; on the other hand, reactions between a trans-alkene and a cis-alkene favour syn-addition, while exocyclic rotation in the acyclic radical cation intermediate is also possible since C–C forming barriers are higher. Computations are consistent with the experimental observation that hexafluoroisopropanol (HFIP) is a better solvent than acetonitrile, in part due to its ability to stabilise the reduced form of the hypervalent iodine initiator by hydrogen bonding, but also through the stabilisation of radical cationic intermediates along the reaction coordinate. A computational study details the mechanism, catalytic cycle and origins of stereoselectivity underlying hole-catalyzed intermolecular alkene heterodimerisation to give unsymmetrical, tetra-substituted cyclobutanes.![]()
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Affiliation(s)
- Xinglong Zhang
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Robert S Paton
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Mansfield Road Oxford OX1 3TA UK.,Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
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12
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De Vita S, Terracciano S, Bruno I, Chini MG. From Natural Compounds to Bioactive Molecules through NMR and
In Silico
Methodologies. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000469] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Simona De Vita
- Department of Pharmacy University of Salerno Via Giovanni Paolo II, n°132 84084 Fisciano (SA) Italy
| | - Stefania Terracciano
- Department of Pharmacy University of Salerno Via Giovanni Paolo II, n°132 84084 Fisciano (SA) Italy
| | - Ines Bruno
- Department of Pharmacy University of Salerno Via Giovanni Paolo II, n°132 84084 Fisciano (SA) Italy
| | - Maria Giovanna Chini
- Department of Biosciences and Territory University of Molise C.da Fonte Lappone‐ 86090 Pesche (IS) Italy
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13
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Costa TEMM, Raghavendra NM, Penido C. Natural heat shock protein 90 inhibitors in cancer and inflammation. Eur J Med Chem 2020; 189:112063. [PMID: 31972392 DOI: 10.1016/j.ejmech.2020.112063] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/11/2022]
Abstract
Heat shock protein (HSP)90 is the most abundant HSPs, which are chaperone molecules whose major roles are cell protection and maintenance by means of aiding the folding, the stabilization and the remodeling of a wide range of proteins. A few hundreds of proteins depend on HSP90 chaperone activity, including kinases and transcriptional factors that play essential roles in cancer and inflammation, so that HSP90-targeted therapies have been considered as a potential strategy for the treatment of cancer and inflammatory-associated diseases. HSP90 inhibition by natural, semi-synthetic and synthetic compounds have yield promising results in pre-clinical studies and clinical trials for different types of cancers and inflammation. Natural products are a huge source of biologically active compounds widely used in drug development due to the great diversity of their metabolites which are capable to modulate several protein functions. HSP90 inhibitors have been isolated from bacteria, fungi and vegetal species. These natural compounds have a noteworthy ability to modulate HSP90 activity as well as serve as scaffolds for the development of novel synthetic or semi-synthetic inhibitors. Over a hundred clinical trials have evaluated the effect of HSP90 inhibitors as adjuvant treatment against different types of tumors and, currently, new studies are being developed to gain sight on novel promising and more effective approaches for cancer treatment. In this review, we present the naturally occurring HSP90 inhibitors and analogues, discussing their anti-cancer and anti-inflammatory effects.
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Affiliation(s)
- Thadeu E M M Costa
- Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation, Rio de Janeiro, 21040-361, Brazil; Laboratory of Applied Pharmacology, Institute of Drug Technology, Farmanguinhos, 21041-250, Rio de Janeiro, Brazil.
| | - Nulgumnalli Manjunathaiah Raghavendra
- Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation, Rio de Janeiro, 21040-361, Brazil; Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, 560090, India.
| | - Carmen Penido
- Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation, Rio de Janeiro, 21040-361, Brazil; Laboratory of Applied Pharmacology, Institute of Drug Technology, Farmanguinhos, 21041-250, Rio de Janeiro, Brazil.
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14
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Zhang LQ, Chen KX, Li YM. Bioactivities of Natural Catalpol Derivatives. Curr Med Chem 2019; 26:6149-6173. [PMID: 31218947 DOI: 10.2174/0929867326666190620103813] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/03/2018] [Accepted: 01/24/2019] [Indexed: 12/12/2022]
Abstract
Catalpol, a famous molecule of iridoids, possesses extensive pharmacological activities. Our studies found that compounds with low-polarity substituents at the 6-O position of catalpol exhibited higher NF-κB inhibitory potency than catalpol. However, catalpol derivatives are not much focused. Here this review provides extensive coverage of naturally occurring catalpol derivatives discovered from 1888 until 2018. It covers their distribution, chemotaxonomic significance, chemical structures, and bioactivities from more than 200 peer-reviewed articles, and highlights the structure-activity relationship of catalpol derivatives.
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Affiliation(s)
- Liu-Qiang Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Kai-Xian Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.,Shanghai Institute of Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yi-Ming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
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15
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Vasaturo M, Cotugno R, Fiengo L, Vinegoni C, Dal Piaz F, De Tommasi N. The anti-tumor diterpene oridonin is a direct inhibitor of Nucleolin in cancer cells. Sci Rep 2018; 8:16735. [PMID: 30425290 PMCID: PMC6233161 DOI: 10.1038/s41598-018-35088-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/25/2018] [Indexed: 11/15/2022] Open
Abstract
The bioactive plant diterpene oridonin displays important pharmacological activities and is widely used in traditional Chinese medicine; however, its molecular mechanism of action is still incompletely described. In vitro and in vivo data have demonstrated anti-tumor activity of oridonin and its ability to interfere with several cell pathways; however, presently only the molecular chaperone HSP70 has been identified as a direct potential target of this compound. Here, using a combination of different proteomic approaches, innovative Cellular Thermal Shift Assay (CETSA) experiments, and classical biochemical methods, we demonstrate that oridonin interacts with Nucleolin, effectively modulating the activity of this multifunctional protein. The ability of oridonin to target Nucleolin and/or HSP70 could account for the bioactivity profile of this plant diterpene. Recently, Nucleolin has attracted attention as a druggable target, as its diverse functions are implicated in pathological processes such as cancer, inflammation, and viral infection. However, up to now, no small molecule as Nucleolin binders has been reported, thus our finding represents the first evidence of Nucleolin modulation by a small inhibitor.
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Affiliation(s)
- Michele Vasaturo
- Università degli Studi di Salerno, Department of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
- Università degli Studi di Salerno, Ph. D. School of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
| | - Roberta Cotugno
- Università degli Studi di Salerno, Department of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
| | - Lorenzo Fiengo
- Università degli Studi di Salerno, Department of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
- Università degli Studi di Salerno, Ph. D. School of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
| | - Claudio Vinegoni
- Harvard Medical School, MGH Center for Systems Biology, 185 Cambridge Steet, 02144, Boston, MA, USA
| | - Fabrizio Dal Piaz
- Università degli Studi di Salerno, Department of Medicine and Surgery, Via S. Allende, 84081, Baronissi, (SA), Italy.
| | - Nunziatina De Tommasi
- Università degli Studi di Salerno, Department of Pharmacy, Via Giovanni Paolo II, 84084, Fisciano, (SA), Italy
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16
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Virelli M, Moroni E, Colombo G, Fiengo L, Porta A, Ackermann L, Zanoni G. Expedient Access to 2-Benzazepines by Palladium-Catalyzed C−H Activation: Identification of a Unique Hsp90 Inhibitor Scaffold. Chemistry 2018; 24:16516-16520. [DOI: 10.1002/chem.201804244] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Matteo Virelli
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
| | | | - Giorgio Colombo
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
- Istituto di Chimica del Riconoscimento Molecolare; CNR; Via Mario Bianco 9 20131 Milano Italy
| | - Lorenzo Fiengo
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II, 132 84084 Fisciano Italy
| | - Alessio Porta
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
| | - Lutz Ackermann
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
| | - Giuseppe Zanoni
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
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17
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Zhu Y, Huang RZ, Wang CG, Ouyang XL, Jing XT, Liang D, Wang HS. New inhibitors of matrix metalloproteinases 9 (MMP-9): Lignans from Selaginella moellendorffii. Fitoterapia 2018; 130:281-289. [DOI: 10.1016/j.fitote.2018.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 02/01/2023]
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18
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Li SF, Jiao YY, Zhang ZQ, Chao JB, Jia J, Shi XL, Zhang LW. Diterpenes from buds of Wikstroemia chamaedaphne showing anti-hepatitis B virus activities. PHYTOCHEMISTRY 2018; 151:17-25. [PMID: 29631103 DOI: 10.1016/j.phytochem.2018.01.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/26/2018] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
Phytochemical study of the buds of Wikstroemia chamaedaphne Meisn. led to the isolation of seven previously undescribed diterpenes, including one tigliane diterpene (wikstchalide A), two daphnane diterpenes (wikstroelides W-X), and four lathyrane diterpenes (laurifoliosides A-B and 2-epi-laurifoliosides A-B), along with four known diterpenes. The structures of these compounds were established by extensive spectroscopic evidence and electronic circular dichroism (ECD) calculations. Wikstchalide A possesses a 5,6-epoxy ring in the tigliane skeleton. Two compounds exhibited potential anti-hepatitis B virus activities, with IC50 values of 46.5 and 88.3 μg/mL against hepatitis B virus (HBV) surface antigen (HBsAg), and six compounds showed certain inhibitory effects on HBV-DNA replication with the inhibition ratios ranging from 2.0% to 33.0% at the concentrations ranging from 0.39 to 6.25 μg/mL.
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Affiliation(s)
- Shi-Fei Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, PR China.
| | - Ying-Ying Jiao
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, PR China; College of Chemistry & Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Zhi-Qiang Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, PR China
| | - Jian-Bin Chao
- Scientific Instrument Center, Shanxi University, Taiyuan, 030006, PR China
| | - Jie Jia
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, PR China
| | - Xun-Long Shi
- Department of Biosynthetic Medicinal Chemistry, School of Pharmaceutical Sciences, Fudan University, Shanghai, 200032, PR China.
| | - Li-Wei Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, PR China.
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19
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Park S, Shin H, Park Y, Choi I, Park B, Lee KY. Characterization of inhibitory constituents of NO production from Catalpa ovata using LC-MS coupled with a cell-based assay. Bioorg Chem 2018; 80:57-63. [PMID: 29874630 DOI: 10.1016/j.bioorg.2018.05.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/21/2018] [Accepted: 05/22/2018] [Indexed: 11/24/2022]
Abstract
An effective screening method for inhibitors of NO production in natural products using LC-QTOF MS/MS coupled with a cell-based assay was proposed. The ethyl acetate fraction of Catalpa ovata exhibited a strong inhibitory effect on NO production in lipopolysaccharide-induced BV2 microglia cells. We attempted to identify the active constituents of C. ovata by using LC-QTOF MS/MS coupled with a cell-based assay. Peaks at approximately 14-15 min on the MS chromatogram were estimated to be the bioactive constituents. A new iridoid compound, 6-O-trans-feruloyl-3β-hydroxy-7-deoxyrehamaglutin A (4), and nine known compounds (1-3, 5-10) were isolated from the ethyl acetate fraction of C. ovata by repeated column chromatography. Compounds 3, 4, 5, 7, and 8 significantly attenuated lipopolysaccharide-stimulated NO production in BV2 cells. Our results indicate that LC-QTOF MS/MS coupled with a cell-based NO production inhibitory assay successfully predicted active compounds without a time-consuming isolation process.
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Affiliation(s)
- Sangmin Park
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Hyeji Shin
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Yeeun Park
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Ilgyu Choi
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Byoungduck Park
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea.
| | - Ki Yong Lee
- College of Pharmacy, Korea University, Sejong, Republic of Korea.
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20
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Hu Y, Miao ZY, Zhang XJ, Yang XT, Tang YY, Yu S, Shan CX, Wen HM, Zhu D. Preparation of Microkernel-Based Mesoporous (SiO2–CdTe–SiO2)@SiO2 Fluorescent Nanoparticles for Imaging Screening and Enrichment of Heat Shock Protein 90 Inhibitors from Tripterygium Wilfordii. Anal Chem 2018; 90:5678-5686. [DOI: 10.1021/acs.analchem.7b05295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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21
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Hu Y, Fu A, Miao Z, Zhang X, Wang T, Kang A, Shan J, Zhu D, Li W. Fluorescent ligand fishing combination with in-situ imaging and characterizing to screen Hsp 90 inhibitors from Curcuma longa L. based on InP/ZnS quantum dots embedded mesoporous nanoparticles. Talanta 2018; 178:258-267. [DOI: 10.1016/j.talanta.2017.09.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/05/2017] [Accepted: 09/12/2017] [Indexed: 01/08/2023]
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22
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Discovery of new molecular entities able to strongly interfere with Hsp90 C-terminal domain. Sci Rep 2018; 8:1709. [PMID: 29374167 PMCID: PMC5786060 DOI: 10.1038/s41598-017-14902-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 10/19/2017] [Indexed: 01/22/2023] Open
Abstract
Heat shock protein 90 (Hsp90) is an ATP dependent molecular chaperone deeply involved in the complex network of cellular signaling governing some key functions, such as cell proliferation and survival, invasion and angiogenesis. Over the past years the N-terminal protein domain has been fully investigated as attractive strategy against cancer, but despite the many efforts lavished in the field, none of the N-terminal binders (termed "classical inhibitors"), currently in clinical trials, have yet successfully reached the market, because of the detrimental heat shock response (HSR) that showed to induce; thus, recently, the selective inhibition of Hsp90 C-terminal domain has powerfully emerged as a more promising alternative strategy for anti-cancer therapy, not eliciting this cell rescue cascade. However, the structural complexity of the target protein and, mostly, the lack of a co-crystal structure of C-terminal domain-ligand, essential to drive the identification of new hits, represent the largest hurdles in the development of new selective C-terminal inhibitors. Continuing our investigations on the identification of new anticancer drug candidates, by using an orthogonal screening approach, here we describe two new potent C-terminal inhibitors able to induce cancer cell death and a considerable down-regulation of Hsp90 client oncoproteins, without triggering the undesired heat shock response.
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23
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Kil YS, Kim SM, Kang U, Chung HY, Seo EK. Peroxynitrite-Scavenging Glycosides from the Stem Bark of Catalpa ovata. JOURNAL OF NATURAL PRODUCTS 2017; 80:2240-2251. [PMID: 28787158 DOI: 10.1021/acs.jnatprod.7b00139] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ten new glycosides, 6,10-O-di-trans-feruloyl catalpol (1), 6,6'-O-di-trans-feruloyl catalpol (2), 3,4-dihydro-6-O-di-trans-feruloyl catalpol (10), (8R,7'S,8'R)-lariciresinol 9'-O-β-d-(6-O-trans-feruloyl)glucopyranoside (17), and ovatosides A-F (18-22, 24), were isolated from the stem bark of Catalpa ovata along with 19 known compounds. All isolates, except 6 (catalposide) and 9 (6-O-veratroyl catalpol), were found to scavenge peroxynitrite (ONOO-) formed by 3-morpholinosydnonimine. In particular, 12 compounds showed potent activity, with IC50 values in the range 0.14-2.2 μM.
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Affiliation(s)
- Yun-Seo Kil
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul 03760, Korea
| | - Seong Min Kim
- College of Pharmacy, Pusan National University , Pusan 46241, Korea
| | - Unwoo Kang
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul 03760, Korea
| | - Hae Young Chung
- College of Pharmacy, Pusan National University , Pusan 46241, Korea
| | - Eun Kyoung Seo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul 03760, Korea
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24
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Ariyasu S, Mu J, Zhang X, Huang Y, Yeow EKL, Zhang H, Xing B. Investigation of Thermally Induced Cellular Ablation and Heat Response Triggered by Planar MoS2-Based Nanocomposite. Bioconjug Chem 2017; 28:1059-1067. [DOI: 10.1021/acs.bioconjchem.6b00741] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Shinya Ariyasu
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jing Mu
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Xiao Zhang
- Center
for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Ying Huang
- Center
for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Edwin Kok Lee Yeow
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Hua Zhang
- Center
for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Bengang Xing
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
- Institute
of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, 117602, Singapore
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25
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Piemontese L, Cerchia C, Laghezza A, Ziccardi P, Sblano S, Tortorella P, Iacobazzi V, Infantino V, Convertini P, Dal Piaz F, Lupo A, Colantuoni V, Lavecchia A, Loiodice F. New diphenylmethane derivatives as peroxisome proliferator-activated receptor alpha/gamma dual agonists endowed with anti-proliferative effects and mitochondrial activity. Eur J Med Chem 2017; 127:379-397. [DOI: 10.1016/j.ejmech.2016.12.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/21/2016] [Accepted: 12/23/2016] [Indexed: 12/18/2022]
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26
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Dal Piaz F, Vera Saltos MB, Franceschelli S, Forte G, Marzocco S, Tuccinardi T, Poli G, Nejad Ebrahimi S, Hamburger M, De Tommasi N, Braca A. Drug Affinity Responsive Target Stability (DARTS) Identifies Laurifolioside as a New Clathrin Heavy Chain Modulator. JOURNAL OF NATURAL PRODUCTS 2016; 79:2681-2692. [PMID: 27704815 DOI: 10.1021/acs.jnatprod.6b00627] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Five new diterpenes (1-5) and a megastigmane derivative (6) were isolated from the aerial parts of Euphorbia laurifolia, along with several known compounds. Their structures were elucidated by NMR, MS, and ECD and by chemical methods. A chemical proteomics drug affinity responsive target stability (DARTS) approach to investigate the lathyrane diterpene 1, laurifolioside, on its putative cellular target(s) was performed. Clathrin heavy chain 1, a protein mainly involved in selective uptake of proteins, viruses, and other macromolecules at the plasma membrane of cells, was identified as the major interaction partner of compound 1. The modulation of clathrin activity by 1 was studied through microscopy, molecular docking, and molecular dynamics studies, suggesting a new activity of lathyrane diterpenes in the modulation of trafficking pathways.
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Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Mariela Beatriz Vera Saltos
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas , ESPE, Avenida General Rumiñahui s/n, Sangolqui, Ecuador
| | - Silvia Franceschelli
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Giovanni Forte
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Stefania Marzocco
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Giulio Poli
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Basel, Switzerland
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
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27
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Milella L, Milazzo S, De Leo M, Vera Saltos MB, Faraone I, Tuccinardi T, Lapillo M, De Tommasi N, Braca A. α-Glucosidase and α-Amylase Inhibitors from Arcytophyllum thymifolium. JOURNAL OF NATURAL PRODUCTS 2016; 79:2104-2112. [PMID: 27509358 DOI: 10.1021/acs.jnatprod.6b00484] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three new coumarins (1-3), a prenylated flavanone (4), and two iridoids (5 and 6), together with 17 known secondary metabolites, were isolated from the aerial parts of Arcytophyllum thymifolium. The structures of the new compounds were elucidated on the basis of their spectroscopic data. The potential hypoglycemic properties of the new and known compounds were evaluated by measuring their α-amylase and α-glucosidase inhibitory effects. The iridoid asperulosidic acid (15) and the flavonoid rhamnetin (13) showed the highest activities versus α-amylase (IC50 = 69.4 ± 3.1 and 73.9 ± 5.9 μM, respectively). In turn, the new eriodictyol derivative 4 exhibited the most potent effect as an α-glucosidase inhibitor, with an IC50 value of 28.1 ± 2.6 μM, and was more active than acarbose, used as a positive control. Modeling studies were also performed to suggest the interaction mode of compound 4 in the α-glucosidase enzyme active site.
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Affiliation(s)
- Luigi Milella
- Dipartimento di Scienze, Università degli Studi della Basilicata , Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Stella Milazzo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Marinella De Leo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Mariela Beatriz Vera Saltos
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas, ESPE , Avenida General Rumiñahui s/n, Sangolqui, Ecuador
| | - Immacolata Faraone
- Dipartimento di Scienze, Università degli Studi della Basilicata , Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa , Via del Borghetto 80, 56124 Pisa, Italy
| | - Margherita Lapillo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa , Via del Borghetto 80, 56124 Pisa, Italy
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28
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Constituents from Vitex negundo var. heterophylla and their inhibition of nitric oxide production. J Nat Med 2016; 71:292-298. [DOI: 10.1007/s11418-016-1032-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 08/06/2016] [Indexed: 11/26/2022]
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29
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Chini MG, Malafronte N, Vaccaro MC, Gualtieri MJ, Vassallo A, Vasaturo M, Castellano S, Milite C, Leone A, Bifulco G, De Tommasi N, Dal Piaz F. Identification of Limonol Derivatives as Heat Shock Protein 90 (Hsp90) Inhibitors through a Multidisciplinary Approach. Chemistry 2016; 22:13236-50. [DOI: 10.1002/chem.201602242] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Maria G. Chini
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nicola Malafronte
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria C. Vaccaro
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria J. Gualtieri
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Pharmacognosy and Organic Drug; University of Los Andes; Sector Campo de Oro, detrás del IAHULA 5101 Mérida Venezuela
| | - Antonio Vassallo
- Department of Science; University of Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Michele Vasaturo
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- PhD Program in Drug Discovery and Development; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Sabrina Castellano
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
| | - Ciro Milite
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Antonietta Leone
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Giuseppe Bifulco
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Fabrizio Dal Piaz
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
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30
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Takahashi T, Saito A. Interaction-dependent native chemical ligation and protein trans-splicing (IDNCL-PTS) for detection and visualization of ligand-protein interactions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tsuyoshi Takahashi
- Graduate School of Science and Technology; Gunma University; 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515 Japan
| | - Akinori Saito
- Graduate School of Science and Technology; Gunma University; 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515 Japan
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31
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Nielsen AJ, Jenkins HA, McNulty J. Asymmetric Organocatalytic Stepwise [2+2] Entry to Tetra-Substituted Heterodimeric and Homochiral Cyclobutanes. Chemistry 2016; 22:9111-5. [PMID: 27124364 DOI: 10.1002/chem.201601842] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Alex J. Nielsen
- Department of Chemistry and Chemical-Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Hilary A. Jenkins
- Department of Chemistry and Chemical-Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - James McNulty
- Department of Chemistry and Chemical-Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
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32
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Ortore G, Orlandini E, Braca A, Ciccone L, Rossello A, Martinelli A, Nencetti S. Targeting Different Transthyretin Binding Sites with Unusual Natural Compounds. ChemMedChem 2016; 11:1865-74. [PMID: 27159149 DOI: 10.1002/cmdc.201600092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 03/14/2016] [Indexed: 11/10/2022]
Abstract
Misfolding and aggregation of the transthyretin (TTR) protein leads to certain forms of amyloidosis. Some nutraceuticals, such as flavonoids and natural polyphenols, have recently been investigated as modulators of the self-assembly process of TTR, but they generally suffer from limited bioavailability. To discover innovative and more bioavailable natural compounds able to inhibit TTR amyloid formation, a docking study was performed using the crystallographic structure of TTR. This computational strategy was projected as an ad hoc inspection of the possible relationship between binding site location and modulation of the assembly process; interactions with the as-yet-unexplored epigallocatechin gallate (EGCG) sites and with the thyroxine (T4) pocket were simultaneously analyzed. All the compounds studied seem to prefer the traditional T4 binding site, but some interesting results emerged from the screening of an in-house database, used for validating the computational protocol, and of the Herbal Ingredients Targets (HIT) catalogue available on the ZINC database.
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Affiliation(s)
- Gabriella Ortore
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy.
| | | | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy
| | - Lidia Ciccone
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy
| | - Armando Rossello
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy
| | - Adriano Martinelli
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy
| | - Susanna Nencetti
- Dipartimento di Farmacia, Università di Pisa, V. Bonanno 6, 56126, Pisa, Italy.
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33
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Sim J, Yoon I, Yun H, An H, Suh YG. Divergent synthetic route to new cyclopenta[c]pyran iridoids: syntheses of jatamanin A, F, G and J, gastrolactone and nepetalactone. Org Biomol Chem 2016; 14:1244-51. [PMID: 26647357 DOI: 10.1039/c5ob02147b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six natural iridoids including jatamanin A, F, G and J, gastrolactone and nepetalactone have been synthesized via the efficient transformation of a core cyclopenta[c]pyran intermediate. Key features of the syntheses include the stereoselective construction of the core cyclopenta[c]pyran skeleton of the iridoid lactones via a Pd(0)-catalyzed intramolecular allylic alkylation, and the facile transformation of the common intermediate into natural iridoids.
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Affiliation(s)
- Jaehoon Sim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
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Terracciano S, Foglia A, Chini MG, Vaccaro MC, Russo A, Piaz FD, Saturnino C, Riccio R, Bifulco G, Bruno I. New dihydropyrimidin-2(1H)-one based Hsp90 C-terminal inhibitors. RSC Adv 2016. [DOI: 10.1039/c6ra17235k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The inhibition of the C-terminal domain of heat shock protein 90 (Hsp90) is emerging as a novel strategy for cancer therapy, therefore the identification of a new class of C-terminal inhibitors is strongly required.
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Affiliation(s)
- S. Terracciano
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - A. Foglia
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - M. G. Chini
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - M. C. Vaccaro
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - A. Russo
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - F. Dal Piaz
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
- Department of Medicine and Surgery University of Salerno
| | - C. Saturnino
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - R. Riccio
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - G. Bifulco
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
| | - I. Bruno
- Department of Pharmacy
- University of Salerno
- Fisciano
- Italy
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35
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Tang HY, Bai MM, Tian JM, Pescitelli G, Ivšić T, Huang XH, Lee H, Son YN, Kim JH, Kim YH, Gao JM. Chemical components from the seeds of Catalpa bungei and their inhibitions of soluble epoxide hydrolase, cholinesterase and nuclear factor kappa B activities. RSC Adv 2016. [DOI: 10.1039/c6ra04207d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
22 compounds, including two rare cage chlorinated iridoids, bungosides A (1) and B (2), were isolated fromCatalpa bungei. of soluble epoxide hydrolase (sEH), acetylcholinesterase (AChE) and BChE, and NF-κB activity.
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36
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Pellati F, Rastelli G. Novel and less explored chemotypes of natural origin for the inhibition of Hsp90. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00340k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on novel classes of natural products whose structures have not yet been thoroughly explored for medicinal chemistry purposes. These novel chemotypes may be useful starting points to develop compounds that alter Hsp90 functionvianovel mechanisms.
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Affiliation(s)
- Federica Pellati
- Department of Life Sciences
- University of Modena and Reggio Emilia
- Modena
- Italy
| | - Giulio Rastelli
- Department of Life Sciences
- University of Modena and Reggio Emilia
- Modena
- Italy
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37
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Teracciano S, Chini MG, Vaccaro MC, Strocchia M, Foglia A, Vassallo A, Saturnino C, Riccio R, Bifulco G, Bruno I. Identification of the key structural elements of a dihydropyrimidinone core driving toward more potent Hsp90 C-terminal inhibitors. Chem Commun (Camb) 2016; 52:12857-12860. [DOI: 10.1039/c6cc06379a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Dramatic improvement in the biological activity of DHPM derivatives as a new class of Hsp90 C-terminal inhibitors for cancer therapy.
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Strocchia M, Terracciano S, Chini MG, Vassallo A, Vaccaro MC, Dal Piaz F, Leone A, Riccio R, Bruno I, Bifulco G. Targeting the Hsp90 C-terminal domain by the chemically accessible dihydropyrimidinone scaffold. Chem Commun (Camb) 2015; 51:3850-3. [PMID: 25656927 DOI: 10.1039/c4cc10074c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Hsp90 C-terminal ligands are potential new anti-cancer drugs alternative to the more studied N-terminal inhibitors. Here we report the identification of a new dihydropyrimidinone binding the C-terminus, which is not structurally related to other well-known natural and nature-inspired inhibitors of this second druggable Hsp90 site.
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Affiliation(s)
- Maria Strocchia
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132, 84084, Fisciano, Italy.
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39
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Bader A, Tuccinardi T, Granchi C, Martinelli A, Macchia M, Minutolo F, De Tommasi N, Braca A. Phenylpropanoids and flavonoids from Phlomis kurdica as inhibitors of human lactate dehydrogenase. PHYTOCHEMISTRY 2015; 116:262-268. [PMID: 25890391 PMCID: PMC4466035 DOI: 10.1016/j.phytochem.2015.03.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/22/2015] [Accepted: 03/24/2015] [Indexed: 05/17/2023]
Abstract
Two flavonoids, jaceosidin 7-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (1) and hispidulin 7-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (2), and one phenylpropanoid, 3,3'-dimethyl-lunariifolioside (3), along with 11 known compounds (4-14), were isolated from the aerial parts of Phlomis kurdica growing in Jordan. Structures of 1-3 were elucidated on the basis of spectroscopic data. These isolated compounds were assayed for their inhibitory activity against isoform 5 of human lactate dehydrogenase. Compound 4, luteolin 7-O-β-d-glucopyranoside, showed an IC50 value comparable to that of galloflavin, used as reference compound. Docking studies were carried out to hypothesize the interaction mode of compound 4 in the enzyme active site.
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Affiliation(s)
- Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, P.O. Box 13174, 21955 Makkah, Saudi Arabia
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Carlotta Granchi
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Adriano Martinelli
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Marco Macchia
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Filippo Minutolo
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università degli Studi di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
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40
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Dal Piaz F, Ferro P, Vassallo A, Vasaturo M, Forte G, Chini MG, Bifulco G, Tosco A, De Tommasi N. Identification and mechanism of action analysis of the new PARP-1 inhibitor 2″-hydroxygenkwanol A. Biochim Biophys Acta Gen Subj 2015; 1850:1806-14. [PMID: 25999161 DOI: 10.1016/j.bbagen.2015.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/27/2015] [Accepted: 05/12/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Poly(ADP-ribose) polymerase 1 (PARP-1) activity has been implicated in the pathogenesis of numerous diseases as cancer, inflammation, diabetes and neurodegenerative disorders, therefore the research for new PARP-1 inhibitors is still an active area. METHODS To identify new potential PARP-1 inhibitors, we performed a screening of a small-molecule library consisting of polyphenols isolated from plants used in the traditional medicine, by Surface Plasmon Resonance (SPR). Biochemical and cellular assays were performed to confirm SPR results and select the promising candidate(s). Finally, limited proteolysis and ligand docking analyses allowed defining the protein region involved in the interaction with the putative inhibitor(s). RESULTS The dimeric spiro-flavonoid 2″-hydroxygenkwanol A, member of a relatively recently discovered class of flavonoids containing a spirane C-atom, has been identified as possible PARP-1 inhibitor. This compound showed a high affinity for the polymerase (KD: 0.32±0.05μM); moreover PARP-1 activity in the presence of 2″-hydroxygenkwanol A was significantly affected both when using the recombinant protein and when measuring the cellular effects. Finally, our study suggests this compound to efficiently interact with the protein catalytic domain, into the nicotine binding pocket. CONCLUSION 2″-hydroxygenkwanol A efficiently binds and inhibits PARP-1 at submicromolar concentrations, thus representing a promising lead for the design of a new class of PARP-1 modulators, useful as therapeutic agents and/or biochemical tools. GENERAL SIGNIFICANCE Our study has identified an additional class of plant molecules, the spiro-biflavonoids, with known beneficial pharmacological properties but with an unknown mechanism of action, as a possible novel class of PARP-1 activity inhibitors.
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Affiliation(s)
- Fabrizio Dal Piaz
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Piera Ferro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Antonio Vassallo
- Department of Sciences, University of Basilicata, Via Nazario Sauro 85, 85100 Potenza, SA, Italy
| | - Michele Vasaturo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giovanni Forte
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Maria Giovanna Chini
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Alessandra Tosco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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Wang Z, Wang J, Yang S, Hou S. Construction and in vitro/in vivo evaluation of 17-allylamino-17-demethoxygeldanamycin (17AAG)-loaded PEGylated nanostructured lipid carriers. Drug Dev Ind Pharm 2015; 42:91-98. [DOI: 10.3109/03639045.2015.1031138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Zhiyong Wang
- Department of Pharmacy Intravenous Admixture Service, the Second Affiliated Hospital of Harbin Medical University,
| | - Jinhua Wang
- Department of Pharmacy Intravenous Admixture Service, the First Affiliated Hospital of Harbin Medical University, and
| | - Songling Yang
- Department of Biology Pharmacy, Heilongjiang Vocational College of Biology Science and Technology, Harbin, Heilongjiang, P.R. China
| | - Shuying Hou
- Department of Pharmacy Intravenous Admixture Service, the First Affiliated Hospital of Harbin Medical University, and
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42
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Faiella L, Piaz FD, Bader A, Braca A. Diterpenes and phenolic compounds from Sideritis pullulans. PHYTOCHEMISTRY 2014; 106:164-170. [PMID: 25073951 DOI: 10.1016/j.phytochem.2014.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 07/02/2014] [Accepted: 07/03/2014] [Indexed: 06/03/2023]
Abstract
Phytochemical investigation of Sideritis pullulans aerial part and root extracts allowed to isolate six ent-kaurane diterpenes, two phenylpropanoids, and one coumarin, identified as 1α,3α,7β,18-tetrahydroxy-ent-kaur-16-ene (sideripullol A) (1), 3α,11α,18-trihydroxy-ent-kaur-16-ene (sideripullol B) (2), 3α,7β,18-trihydroxy-17-nor-ent-kauran-16-one (sideritone A) (3), 3α,7β-dihydroxy-18-acetyloxy-17-nor-ent-kauran-16-one (sideritone B) (4), 3α,7β,16α,17-tetrahydroxy-18-acetyloxy-ent-kaurane (sideripullol C) (5), 7β,16α,17,18-tetrahydroxy-ent-kaurane (sideripullol D) (6), β-(3-methoxy-4-hydroxyphenyl)-ethyl-O-α-l-arabinopiranosyl-(1→2)-α-l-rhamnopyranosyl-(1→3)-6-O-t-feruloyl-β-d-glucopyranoside (sideritiside A) (7), β-(3,4-dihydroxyphenyl)-ethyl-O-α-l-arabinopiranosyl-(1→2)-α-l-rhamnopyranosyl-(1→3)-6-O-t-feruloyl-β-d-glucopyranoside (sideritiside B) (8), and 7-demethyl-8-methoxycoumarsabin (9), respectively. Twenty known compounds, including phenolics, flavonol glycosides, iridoids, diterpenes, sesquiterpenes, lignans, coumarins, and phenylpropanoids were also isolated and characterized. All diterpenes were evaluated for their cytotoxic activity.
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Affiliation(s)
- Laura Faiella
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy
| | - Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno, via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy.
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43
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Gualtieri MJ, Malafronte N, Vassallo A, Braca A, Cotugno R, Vasaturo M, De Tommasi N, Dal Piaz F. Bioactive limonoids from the leaves of Azaridachta indica (Neem). JOURNAL OF NATURAL PRODUCTS 2014; 77:596-602. [PMID: 24499352 DOI: 10.1021/np400863d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Eight new limonoids (1-8) and one new phenol glycoside (9), along with six known compounds, were isolated from the leaves of Azaridachta indica. The structures of 1-9 were elucidated on the basis of spectroscopic data analysis. Compounds isolated were assayed for their cytotoxicity against different cancer cell lines. Moreover, their ability to interact with the molecular chaperone Hsp90, affecting its biological activity, was tested.
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Affiliation(s)
- Maria J Gualtieri
- Laboratorio de Medicamentos Organicos Sector Campo de Oro, Departamento de Farmacognosia y Medicamentos Organicos, Universidad de Los Andes , detras del HULA, Mérida, 5101, Venezuela
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44
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Hernández V, Malafronte N, Mora F, Pesca MS, Aquino RP, Mencherini T. Antioxidant and antiangiogenic activity ofAstronium graveolensJacq. leaves. Nat Prod Res 2014; 28:917-22. [DOI: 10.1080/14786419.2014.889134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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45
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Ntie-Kang F, Yong JN. The chemistry and biological activities of natural products from Northern African plant families: from Aloaceae to Cupressaceae. RSC Adv 2014. [DOI: 10.1039/c4ra11467a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Traditional medicinal practices play a key role in health care systems in countries with developing economies.
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Affiliation(s)
- Fidele Ntie-Kang
- Department of Chemistry
- Chemical and Bioactivity Information Centre
- Faculty of Science
- University of Buea
- Buea, Cameroon
| | - Joseph N. Yong
- Department of Chemistry
- Faculty of Science
- University of Buea
- Buea, Cameroon
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