1
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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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2
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Luo J, Sun Y, Li Q, Kong L. Research progress of meliaceous limonoids from 2011 to 2021. Nat Prod Rep 2022; 39:1325-1365. [PMID: 35608367 DOI: 10.1039/d2np00015f] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: July 2010 to December 2021Limonoids, a kind of natural tetranortriterpenoids with diverse skeletons and valuable insecticidal and medicinal bioactivities, are the characteristic metabolites of most plants of the Meliaceae family. The chemistry and bioactivities of meliaceous limonoids are a continuing hot area of natural products research; to date, about 2700 meliaceous limonoids have been identified. In particular, more than 1600, including thirty kinds of novel rearranged skeletons, have been isolated and identified in the past decade due to their wide distribution and abundant content in Meliaceae plants and active biosynthetic pathways. In addition to the discovery of new structures, many positive medicinal bioactivities of meliaceous limonoids have been investigated, and extensive achievements regarding the chemical and biological synthesis have been made. This review summarizes the recent research progress in the discovery of new structures, medicinal and agricultural bioactivities, and chem/biosynthesis of limonoids from the plants of the Meliaceae family during the past decade, with an emphasis on the discovery of limonoids with novel skeletons, the medicinal bioactivities and mechanisms, and chemical synthesis. The structures, origins, and bioactivities of other new limonoids were provided as ESI. Studies published from July 2010 to December 2021 are reviewed, and 482 references are cited.
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Affiliation(s)
- Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Yunpeng Sun
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Qiurong Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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3
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Vasquez-Ruiz V, Ramírez-Cisneros MÁ, Rios MY. Triterpenes and limonoids of Cedrela: Distribution, biosynthesis, and 1 H and 13 C NMR data. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:275-358. [PMID: 34730255 DOI: 10.1002/mrc.5229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Cedrela genus, a member of the Meliaceae family, presents both chemical characteristics associated with and those that distinguish it from the rest of its members. The presence of triterpenes and limonoids is the characteristic of the Meliaceae family, but the class and type of these chemical constituents are distinctive for each genus. Cedrela includes cycloartane, ursane, oleanane, tirucallane, butyrospermane, and apotirucallane triterpenes, and its limonoids belongs to six class and nine types, known as class Ia-type havanensines, class Ib-type delevoyin, class II-type gedunin, class IIIb-type andirobin, class IIIg-type mexicanolide, class IVa-type evoludone, class Va-type obacunol, class V-type limonin, and class VIII. Each of these structural arrangements includes specific traits, defined by their biosynthetic origin, which can be established by means of structural elucidation techniques, particularly 1 H and 13 C NMR, which assisted by 2D NMR techniques, allowing to deduce their structures unequivocally. The constant presence of these skeletal arrangements in Cedrela ensures that they are its chemophenetic markers and their recurrence is an important criterion for their identity. This review is a compilation of the occurrence of triterpenes and limonoids in Cedrela genus, detailing their biosynthetic association and collecting and organizing their NMR data, with the purpose of facilitating its location, analysis, and use in the phytochemical study of species from this genus.
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Affiliation(s)
- Vianey Vasquez-Ruiz
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - M Ángeles Ramírez-Cisneros
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - Maria Yolanda Rios
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
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4
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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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Bellone M, Muñoz Camero C, Chini MG, Dal Piaz F, Hernandez V, Bifulco G, De Tommasi N, Braca A. Limonoids from Guarea guidonia and Cedrela odorata: Heat Shock Protein 90 (Hsp90) Modulator Properties of Chisomicine D. JOURNAL OF NATURAL PRODUCTS 2021; 84:724-737. [PMID: 33661631 PMCID: PMC8041370 DOI: 10.1021/acs.jnatprod.0c01217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Indexed: 06/01/2023]
Abstract
Nine new limonoids (1-9) were isolated from the stem bark of Guarea guidonia (1-4) and Cedrela odorata (5-9). Their structures were elucidated using 1D and 2D NMR and MS data and chemical methods as three A2,B,D-seco-type limonoids (1-3), a mexicanolide (4), three nomilin-type (5-7) limonoids, and two limonol derivatives (8 and 9). A DFT/NMR procedure was used to define the relative configurations of 1 and 3. A surface plasmon resonance approach was used to screen the Hsp90 binding capability of the limonoids, and the A2,B,D-seco-type limonoid 8-hydro-(8S*,9S*)-dihydroxy-14,15-en-chisomicine A, named chisomicine D (1), demonstrated the highest affinity. By means of mass spectrometry data, biochemical and cellular assays, and molecular docking, 1 was found as a type of client-selective Hsp90 inhibitor binding to the C-terminus domain of the chaperone.
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Affiliation(s)
- Maria
Laura Bellone
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
- PhD
Program in Drug Discovery and Development, Department of Pharmacy, Università degli Studi di Salerno, 84084 Fisciano
(SA), Italy
| | | | - Maria Giovanna Chini
- Dipartimento
di Bioscienze e Territorio, Università
degli Studi del Molise, 86090 Pesche (IS), Italy
| | - Fabrizio Dal Piaz
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
- Dipartimento
di Medicina, Chirurgia e Odontoiatria “Scuola Medica Salernitana”, Università degli Studi di Salerno, 84084 Fisciano
(SA), Italy
| | - Vanessa Hernandez
- Departamento
de Farmacognosia y Medicamentos Organicos, Universidad de los Andes, Mérida, 5101, Venezuela
| | - Giuseppe Bifulco
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
| | - Nunziatina De Tommasi
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento
di Farmacia, Università di Pisa, 56126 Pisa, Italy
- CISUP,
Centro per l’Integrazione della Strumentazione Scientifica, Università di Pisa, 56126 Pisa, Italy
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6
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PNSA, a Novel C-Terminal Inhibitor of HSP90, Reverses Epithelial-Mesenchymal Transition and Suppresses Metastasis of Breast Cancer Cells In Vitro. Mar Drugs 2021; 19:md19020117. [PMID: 33672529 PMCID: PMC7923764 DOI: 10.3390/md19020117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/06/2021] [Accepted: 02/09/2021] [Indexed: 12/18/2022] Open
Abstract
Metastasis accounts for the vast majority of deaths in breast cancer, and novel and effective treatments to inhibit cancer metastasis remain urgently developed. The expression level of heat shock protein 90 (HSP90) in invasive breast cancer tissue is higher than in adjacent non-cancerous tissue. In the present study, we investigated the inhibitory effect of penisuloxazin A (PNSA), a novel C- terminal inhibitor of HSP90, on metastasis of breast cancer cells and related mechanism in vitro. We found that PNSA obviously affected adhesion, migration, and invasion of triple-negative breast cancer (TNBC) MDA-MB-231 cells and Trastuzumab-resistant JIMT-1 cells. Furthermore, PNSA was capable of reversing epithelial-mesenchymal transformation (EMT) of MDA-MB-231 cells with change of cell morphology. PNSA increases E-cadherin expression followed by decreasing amounts of N-cadherin, vimentin, and matrix metalloproteinases9 (MMP9) and proteolytic activity of matrix metalloproteinases2 (MMP2) and MMP9. Comparatively, the N-terminal inhibitor of HSP90 17-allyl-17-demethoxygeldanamycin (17-AAG) had no effect on EMT of MDA-MB-231 cells. PNSA was uncovered to reduce the stability of epidermal growth factor receptor (EGFR) and fibroblast growth factor receptor (FGFR) proteins and thereby inhibiting their downstream signaling transductions by inhibition of HSP90. In addition, PNSA reduced the expression of programmed cell death-ligand 1 (PD-L1) to promote natural killer (NK) cells to kill breast cancer cells with a dose far less than that of cytotoxicity to NK cell itself, implying the potential of PNSA to enhance immune surveillance against metastasis in vivo. All these results indicate that PNSA is a promising anti-metastasis agent worthy of being studied in the future.
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Nogueira TSR, Passos MDS, Nascimento LPS, Arantes MBDS, Monteiro NO, Boeno SIDS, de Carvalho Junior A, Azevedo ODA, Terra WDS, Vieira MGC, Braz-Filho R, Curcino Vieira IJ. Chemical Compounds and Biologic Activities: A Review of Cedrela Genus. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25225401. [PMID: 33218181 PMCID: PMC7699174 DOI: 10.3390/molecules25225401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/12/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022]
Abstract
The genus Cedrela P. Browne, which belongs to the Meliaceae family, has eighteen species. Trees of this genus are of economic interest due to wood quality, as well as being the focus of studies because of relevant biologic activities as in other Meliaceae species. These activities are mainly related to limonoids, a characteristic class of compounds in this family. Therefore, the aim of this review is to perform a survey of the citations in the literature on the Cedrela genus species. Articles were found on quantitative and qualitative phytochemical studies of the Cedrela species, revealing the chemical compounds identified, such as aliphatics acid and alcohol, flavonoids, tocopherol, monoterpenes, sesquiterpenes, triterpenes, cycloartanes, steroids, and limonoids. Although some activities were tested, the majority of studies focused on the insecticidal, antifeedant, or insect growth inhibitor activities of this genus. Nonetheless, the most promising activities were related to their antimalarial and antitripanocidal effects, although further investigations are still needed.
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Affiliation(s)
- Thalya Soares R. Nogueira
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
- Correspondence: ; Tel.: +22-2748-6207
| | - Michel de S. Passos
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
| | - Lara Pessanha S. Nascimento
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
| | - Mayara Barreto de S. Arantes
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
| | - Noemi O. Monteiro
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
| | - Samyra Imad da S. Boeno
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
| | | | - Otoniel de A. Azevedo
- Centro Universitário São Camilo, Campus I, Rua São Camilo de Léllis 01, Cachoeiro de Itapemirim, Espírito Santo 29304-910, Brazil;
| | - Wagner da S. Terra
- Instituto Federal de Educação, Ciência e Tecnologia Fluminense, Campus Campos Centro, Campos dos Goytacazes, Rio de Janeiro 28030-130, Brazil; (W.d.S.T.); (M.G.C.V.)
| | - Milena Gonçalves C. Vieira
- Instituto Federal de Educação, Ciência e Tecnologia Fluminense, Campus Campos Centro, Campos dos Goytacazes, Rio de Janeiro 28030-130, Brazil; (W.d.S.T.); (M.G.C.V.)
| | - Raimundo Braz-Filho
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro 20000-000, Brazil
| | - Ivo J. Curcino Vieira
- Laboratório de Ciências Químicas, Centro de Ciências e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 20000-000, Brazil; (M.d.S.P.); (L.P.S.N.); (M.B.d.S.A.); (N.O.M.); (S.I.d.S.B.); (R.B.-F.); (I.J.C.V.)
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8
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Dai J, Zhu M, Qi X, Wang Y, Li H, Tang S, Wang Q, Chen A, Liu M, Gu Q, Li D, Li J. Fungal mycotoxin penisuloxazin A, a novel C-terminal Hsp90 inhibitor and characteristics of its analogues on Hsp90 function related to binding sites. Biochem Pharmacol 2020; 182:114218. [PMID: 32949584 DOI: 10.1016/j.bcp.2020.114218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/01/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
Hsp90 is a promising drug target for cancer therapy. However, toxicity and moderate effect are limitations of current inhibitors owing to broad protein degradation. The fungal mycotoxin penisuloxazin A (PNSA) belongs to a new epipolythiodiketopiperazines (ETPs) possessing a rare 3H-spiro[benzofuran-2,2'-piperazine] ring system. PNSA bound to cysteine residues C572/C598 of CT-Hsp90 with disulfide bonds and inhibits Hsp90 activity, resulting in apoptosis and growth inhibition of HCT116 cells in vitro and in vivo. We identified that analogues PEN-A and HDN-1 bound to C572/C597 and C572 of CT-Hsp90α respectively, with binding pattern very similar to PNSA. These ETPs exhibited different effects on ATPase activity, dimerization formation and selectivity on client protein of Hsp90, indicating client recognition of Hsp90 can be exactly regulated by different sites of Hsp90. Our findings not only offer new chemotypes for anticancer drug development, but also help to better understand biological function of Hsp90 for exploring inhibitor with some client protein bias.
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Affiliation(s)
- Jiajia Dai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Meilin Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Xin Qi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Yanjuan Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Huilin Li
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Shuai Tang
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Academy of Sciences, Shanghai 201203, PR China
| | - Qiang Wang
- College of Pharmacy, South Central University for Nationalities, Wuhan 430074, PR China
| | - Ao Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Ming Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, PR China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, PR China.
| | - Jing Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, PR China.
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9
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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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10
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Reginelli A, Belfiore MP, Russo A, Turriziani F, Moscarella E, Troiani T, Brancaccio G, Ronchi A, Giunta E, Sica A, Iovino F, Ciardiello F, Franco R, Argenziano G, Grassi R, Cappabianca S. A Preliminary Study for Quantitative Assessment with HFUS (High- Frequency Ultrasound) of Nodular Skin Melanoma Breslow Thickness in Adults Before Surgery: Interdisciplinary Team Experience. Curr Radiopharm 2020; 13:48-55. [DOI: 10.2174/1874471012666191007121626] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 04/24/2019] [Accepted: 07/17/2019] [Indexed: 11/22/2022]
Abstract
Background:
Cutaneous melanoma is one of the most severe skin diseases. Nodular melanoma
is the second melanoma subtype in order of frequency. The prognosis of skin melanoma depends
on the vertical growth of the tumor (Breslow index). For this measurement, excisional biopsy is
strongly recommended. This is, however, an invasive procedure and may cause damage to the lymphatic
drainage system. The HFUS system, , can be extremely useful for determining tumor thickness
in the preoperative phase, given its high resolution capacity. The aim of this preliminary study is to
define the role of HFUS for the nodular skin melanoma Breslow thickness in adults before surgery by
making a comparison with histological features.
Methods:
In this study, 14 melanocytic lesions (8 male and 6 female) were evaluated with dermatoscopic
clinical features strongly indicative of nodular melanoma. Out of these, excisional biopsy of 7
lesions was requested. The ultrasounds were performed preoperatively. The images were acquired
through the first ultrasound scanner with ultra-high frequency probes (range from 50MHz to 70 MHz)
available on the market under the EEC mark (Vevo "MD, FUJIFILM Visual Sonics, Amsterdam, the
Netherlands) equipped with a linear probe of 50-70 MHz.
Results:
From the ultrasonographic analysis of 14 nodular melanoma thickness was determined for the
presence of two hyperechogenic laminae, separated by a hypo / anechoic space. The twelve lesions
were in situ while the other two lesions showed ultrasonography for example; the satellite lesions (less
than two centimeters from the primary lesion) and in transit (localizable to more than two centimeters
from the primary lesion). Four of these lesions were ulcerated. A comparsion was made the 7 lesions
on between the thickness calculated with this method, and that obtained on the bioptic piece. The presence
of a positive concordance has been evident in all of the cases.
Conclusions:
If further studies are needed to support its widespread clinical use, its is believed that, in
expert hands and with an interdisciplinary team, HFUS is already capable to reliably calculate a
Breslow index in a large majority of patients with cutaneous melanoma.
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Affiliation(s)
- Alfonso Reginelli
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Maria P. Belfiore
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Anna Russo
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Fabrizio Turriziani
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Elvira Moscarella
- Section of Dermatology, Department of Preventive Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Teresa Troiani
- Section of Medical Oncology, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Gabriella Brancaccio
- Section of Dermatology, Department of Preventive Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Andrea Ronchi
- Section of Pathological Anatomy, Department of Preventive Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Emilio Giunta
- Section of Medical Oncology, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Antonello Sica
- Section of Medical Oncology, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Francesco Iovino
- Section of General Surgery, Department of Cardiothoracic Surgery, University of Campania “L:Vanvitelli”, Naples, Italy
| | - Fortunato Ciardiello
- Section of Medical Oncology, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Renato Franco
- Section of Pathological Anatomy, Department of Preventive Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Giuseppe Argenziano
- Section of Dermatology, Department of Preventive Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Roberto Grassi
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
| | - Salvatore Cappabianca
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania “L. Vanvitelli”; Naples, Italy
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11
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Lauro G, Bifulco G. Elucidating the Relative and Absolute Configuration of Organic Compounds by Quantum Mechanical Approaches. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901878] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gianluigi Lauro
- 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
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12
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Natural compounds as potential Hsp90 inhibitors for breast cancer-Pharmacophore guided molecular modelling studies. Comput Biol Chem 2019; 83:107113. [PMID: 31493740 DOI: 10.1016/j.compbiolchem.2019.107113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/14/2019] [Accepted: 08/18/2019] [Indexed: 12/16/2022]
Abstract
Breast cancer is one of the major impediments affecting women globally. The ATP-dependant heat shock protein 90 (Hsp90) forms the central component of molecular chaperone machinery that predominantly governs the folding of newly synthesized peptides and their conformational maturation. It regulates the stability and function of numerous client proteins that are frequently upregulated and/or mutated in cancer cells, therefore, making Hsp90 inhibition a promising therapeutic strategy for the development of new efficacious drugs to treat breast cancer. In the present in silico investigation, a structure-based pharmacophore model was generated with hydrogen bond donor, hydrogen bond acceptor and hydrophobic features complementary to crucial residues Ala55, Lys58, Asp93, Ile96, Met98 and Thr184 directed at inhibiting the ATP-binding activity of Hsp90. Subsequently, the phytochemical dataset of 3210 natural compounds was screened to retrieve the prospective inhibitors after rigorous validation of the model pharmacophore. The retrieved 135 phytocompounds were further filtered by drug-likeness parameters including Lipinski's rule of five and ADMET properties, then investigated via molecular docking-based scoring. Molecular interactions were assessed using Genetic Optimisation for Ligand Docking program for 95 drug-like natural compounds against Hsp90 along with two clinical drugs as reference compounds - Geldanamycin and Radicicol. Docking studies revealed three phytochemicals are better than the investigated clinical drugs. The reference and hit compounds with dock scores of 48.27 (Geldanamycin), 40.90 (Radicicol), 73.04 (Hit1), 72.92 (Hit2) and 68.12 (Hit3) were further validated for their binding stability through molecular dynamics simulations. We propose that the non-macrocyclic scaffolds of three identified phytochemicals might aid in the development of novel therapeutic candidates against Hsp90-driven cancers.
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13
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Liu S, Hu L, Jiang D, Xi W. Effect of Post-Harvest LED and UV Light Irradiation on the Accumulation of Flavonoids and Limonoids in the Segments of Newhall Navel Oranges ( Citrus sinensis Osbeck). Molecules 2019; 24:molecules24091755. [PMID: 31064149 PMCID: PMC6540038 DOI: 10.3390/molecules24091755] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/01/2019] [Accepted: 05/04/2019] [Indexed: 01/13/2023] Open
Abstract
To investigate the effect of post-harvest light irradiation on the accumulation of flavonoids and limonoids, harvested Newhall navel oranges were continuously exposed to light-emitting diode (LED) and ultraviolet (UV) light irradiation for 6 days, and the composition and content of flavonoids and limonoids in the segments were determined using UPLC-qTOF-MS at 0, 6, and 15 days after harvest. In total, six polymethoxylated flavonoids (PMFs), five flavone-O/C-glycosides, seven flavanone-O-glycosides, and three limonoids were identified in the segments. The accumulation of these components was altered by light irradiation. Red and blue light resulted in higher levels of PMFs during exposure periods. The accumulation of PMFs was also significantly induced after white light, UVB and UVC irradiation were removed. Red and UVC irradiation induced the accumulation of flavone and flavanone glycosides throughout the entire experimental period. Single light induced limonoid accumulation during exposure periods, but limonoid levels decreased significantly when irradiation was removed. Principal component analysis showed a clear correlation between PMFs and white light, between flavonoid glycosides and red light and UVC, and between limonoids and UVC. These results suggest that the accumulation of flavonoids and limonoids in citrus is regulated by light irradiation. White light, red light and UVC irradiation might be a good potential method for improving the nutrition and flavor quality of post-harvest citrus.
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Affiliation(s)
- Shengyu Liu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
| | - Linping Hu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
| | - Dong Jiang
- Citrus Research Institute, Chinese Academy of Agricultural Sciences, Chongqing 400712, China.
| | - Wanpeng Xi
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing 400715, China.
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14
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Li H, Wang Y, Hu X, Ma B, Zhang H. Thymosin beta 4 attenuates oxidative stress-induced injury of spinal cord-derived neural stem/progenitor cells through the TLR4/MyD88 pathway. Gene 2019; 707:136-142. [PMID: 31054361 DOI: 10.1016/j.gene.2019.04.083] [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: 01/22/2019] [Revised: 04/28/2019] [Accepted: 04/30/2019] [Indexed: 01/22/2023]
Abstract
Neural stem/progenitor cells (NSPCs) can enhance regeneration after spinal cord injury (SCI), but survival of transplanted cells remains poor. Understanding how NSPCs respond to the chemical mediators of secondary injury thus is essential for treating SCI. Thymosin β4 (Tβ4) has physiological functions that are highly relevant to SCI. We exposed NSPCs to oxidative stress and found reduced expression of Tβ4 in H2O2-injured NSPCs. Using an MTT assay, we found that Tβ4 dose dependently increased viability of the injured NSPCs. Tβ4 also reversed the decreases of intracellular Ca2+ concentration and increases of lactate dehydrogenase in NSPCs induced by H2O2 treatment. H2O2 exposure increased NSPC apoptosis, which Tβ4 decreased. In H2O2-induced NSPCs, ROS production and pro-inflammatory cytokines increased, and again, Tβ4 reversed these effects. We investigated the toll-like receptor 4 (TLR4) and myeloid differentiation primary response 88 (MyD88) signaling pathway as an underlying mechanism in Tβ4's protective effect on H2O2-exposed NSPCs. Our results showed that Tβ4 reduced expression of TLR4 and MyD88. Moreover, H2O2-exposed NSPCs that were treated with the TLR4/MyD88 pathway inhibitor showed a reversal of all the effects caused by H2O2, similar to Tβ4's effects. In conclusion, our study determined that Tβ4 attenuated H2O2-induced oxidative stress injury in NSPCs via the TLR4/MyD88 pathway.
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Affiliation(s)
- Hongwei Li
- Department of Spine SurgAery, Lanzhou University Second Hospital, Lanzhou 740030, Gansu, China
| | - Yonggang Wang
- Department of Spine SurgAery, Lanzhou University Second Hospital, Lanzhou 740030, Gansu, China
| | - Xuchang Hu
- Department of Spine SurgAery, Lanzhou University Second Hospital, Lanzhou 740030, Gansu, China
| | - Bing Ma
- Department of Spine SurgAery, Lanzhou University Second Hospital, Lanzhou 740030, Gansu, China
| | - Haihong Zhang
- Department of Spine SurgAery, Lanzhou University Second Hospital, Lanzhou 740030, Gansu, China.
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15
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Giordano A, Forte G, Terracciano S, Russo A, Sala M, Scala MC, Johansson C, Oppermann U, Riccio R, Bruno I, Di Micco S. Identification of the 2-Benzoxazol-2-yl-phenol Scaffold as New Hit for JMJD3 Inhibition. ACS Med Chem Lett 2019; 10:601-605. [PMID: 30996803 DOI: 10.1021/acsmedchemlett.8b00589] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/25/2019] [Indexed: 12/11/2022] Open
Abstract
JMJD3 is a member of the KDM6 subfamily and catalyzes the demethylation of lysine 27 on histone H3 (H3K27). This protein was identified as a useful tool in understanding the role of epigenetics in inflammatory conditions and in cancer as well. Guided by a virtual fragment screening approach, we identified the benzoxazole scaffold as a new hit suitable for the development of tighter JMJD3 inhibitors. Compounds were synthesized by a microwave-assisted one-pot reaction under catalyst and solvent-free conditions. Among these, compound 8 presented the highest inhibitory activity (IC50 = 1.22 ± 0.22 μM) in accordance with molecular modeling calculations. Moreover, 8 induced the cycle arrest in S-phase on A375 melanoma cells.
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Affiliation(s)
- Assunta Giordano
- Institute of Biomolecular Chemistry (ICB), Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, I-80078 Pozzuoli, Napoli, Italy
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Giovanni Forte
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Stefania Terracciano
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Alessandra Russo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Marina Sala
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Maria C. Scala
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Catrine Johansson
- Botnar Research Centre, Oxford NIHR BRU, Oxford University, Oxford Centre for Translational Myeloma Research, Oxford, OX3 7LD, U.K
| | - Udo Oppermann
- Botnar Research Centre, Oxford NIHR BRU, Oxford University, Oxford Centre for Translational Myeloma Research, Oxford, OX3 7LD, U.K
| | - Raffaele Riccio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Ines Bruno
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Simone Di Micco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
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16
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D'Ambola M, Fiengo L, Chini MG, Cotugno R, Bader A, Bifulco G, Braca A, De Tommasi N, Dal Piaz F. Fusicoccane Diterpenes from Hypoestes forsskaolii as Heat Shock Protein 90 (Hsp90) Modulators. JOURNAL OF NATURAL PRODUCTS 2019; 82:539-549. [PMID: 30839211 DOI: 10.1021/acs.jnatprod.8b00924] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ten new (1-10) and six known (11-16) fusicoccane diterpenes were isolated from the roots of Hypoestes forsskaolii. The structural characterization of 1-10 was performed by spectroscopic analysis, including 1D and 2D NMR, ECD, and HRESIMS experiments. From a perspective of obtaining potential Hsp90α inhibitors, the isolates were screened by surface plasmon resonance measurements and their cytotoxic activity was assayed using Jurkat and HeLa cancer cells. Compound 6, 18-hydroxyhypoestenone, was shown to be the most active compound against Hsp90, and its interactions were studied also by biochemical and cellular assays and by molecular docking.
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Affiliation(s)
- Massimiliano D'Ambola
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Lorenzo Fiengo
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Maria Giovanna Chini
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Roberta Cotugno
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - Giuseppe Bifulco
- 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 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
| | - Fabrizio Dal Piaz
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
- Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana" , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
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17
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Dai J, Chen A, Zhu M, Qi X, Tang W, Liu M, Li D, Gu Q, Li J. Penicisulfuranol A, a novel C-terminal inhibitor disrupting molecular chaperone function of Hsp90 independent of ATP binding domain. Biochem Pharmacol 2019; 163:404-415. [PMID: 30857829 DOI: 10.1016/j.bcp.2019.03.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/07/2019] [Indexed: 12/30/2022]
Abstract
The goal of this study is to explore the mechanism of a heat shock protein 90 (Hsp90) C-terminal inhibitor, Penicisulfuranol A (PEN-A), for cancer therapy. PEN-A was produced by a mangrove endophytic fungus Penicillium janthinellum and had a new structure with a rare 3H-spiro [benzofuran-2, 2'-piperazine] ring system. PEN-A caused depletion of multiple Hsp90 client proteins without induction of heat shock protein 70 (Hsp70). Subsequently, it induced apoptosis and inhibited xerograph tumor growth of HCT116 cells in vitro and in vivo. Mechanism studies showed that PEN-A was bound to C-terminus of Hsp90 at the binding site different from ATP binding domain. Therefore, it inhibited dimerization of Hsp90 C-terminus, depolymerization of ADH protein by C-terminus of Hsp90, and interaction of co-chaperones with Hsp90. These inhibitory effects of PEN-A were similar to those of novobiocin, an inhibitor binding to interaction site for ATP of C-terminus of Hsp90. Furthermore, our study revealed that disulfide bond was essential moiety for inhibition activity of PEN-A on Hsp90. This suggested that PEN-A may be bound to cysteine residues near amino acid region which was responsible for dimerization of Hsp90. All results indicate that PEN-A is a novel C-terminal inhibitor of Hsp90 and worthy for further study in the future not only for drug development but also for unraveling the bioactivities of Hsp90.
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Affiliation(s)
- Jiajia Dai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Ao Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Meilin Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Xin Qi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Wei Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Ming Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China
| | - Jing Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China; Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Aoshanwei, Jimo, Qingdao 266237, PR China.
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18
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Pinkerton DM, Chow S, Eisa NH, Kainth K, Vanden Berg TJ, Burns JM, Guddat LW, Savage GP, Chadli A, Williams CM. Synthesis of the seco-Limonoid BCD Ring System Identifies a Hsp90 Chaperon Machinery (p23) Inhibitor. Chemistry 2018; 25:1451-1455. [PMID: 30570197 DOI: 10.1002/chem.201805420] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/23/2018] [Indexed: 01/06/2023]
Abstract
D-Ring-seco-limonoids (tetranortriterpenoids), such as gedunin and xylogranin B display anti-cancer activity, acting via inhibition of Hsp90 and/or associated chaperon machinery (e.g., p23). Despite this, these natural products have received relatively little attention, both in terms of an enabling synthetic approach (which would allow access to derivatives), and as a consequence their structure-activity relationship (SAR). Disclosed herein is a generally applicable synthetic route to the BCD ring system of the seco-D-ring double bond containing limonoids. Furthermore, cell based assays revealed the first skeletal fragment that exhibited inhibition of the p23 enzyme at a level which was equipotent to that of gedunin, despite being much less structurally complex.
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Affiliation(s)
- David M Pinkerton
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Sharon Chow
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Nada H Eisa
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA.,Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Kashish Kainth
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA
| | - Timothy J Vanden Berg
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Jed M Burns
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Luke W Guddat
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - G Paul Savage
- CSIRO Manufacturing, Ian Wark Laboratory, Melbourne, 3168, Victoria, Australia
| | - Ahmed Chadli
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA
| | - Craig M Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
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19
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Khalfaoui A, Chini MG, Bouheroum M, Belaabed S, Lauro G, Terracciano S, Vaccaro MC, Bruno I, Benayache S, Mancini I, Bifulco G. Glucopyranosylbianthrones from the Algerian Asphodelus tenuifolius: Structural Insights and Biological Evaluation on Melanoma Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2018; 81:1786-1794. [PMID: 30063349 DOI: 10.1021/acs.jnatprod.8b00234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two new glucopyranosylbianthrones (1 and 2) were isolated from the aerial part of the plant Asphodelus tenuifolius, collected in Southwest Algeria. The 2D structures of 1 and 2 were defined by NMR analysis, HRESIMS data, and comparison with literature data. The comparison of experimental and calculated electronic circular dichroism and NMR data led to characterization of the ( M) and ( P) atropisomeric forms of the glucopyranosylbianthrones, asphodelins (1) and (2), respectively. The in vitro activities of these two metabolites were evaluated in human melanoma A375 cells, and both the compounds inhibited cell proliferation in a concentration-dependent manner, with IC50 values of 20.6 ± 0.8 and 23.2 ± 1.1 μM, respectively. Considering their biological profile, an inverse virtual screening approach was employed to identify and suggest putative anticancer interacting targets.
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Affiliation(s)
- Ayoub Khalfaoui
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis , University Mentouri Constantine , Route Ain ElBey , 25000 , Constantine , Algeria
| | - Maria G Chini
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Mohamed Bouheroum
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis , University Mentouri Constantine , Route Ain ElBey , 25000 , Constantine , Algeria
| | - Soumia Belaabed
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis , University Mentouri Constantine , Route Ain ElBey , 25000 , Constantine , Algeria
| | - Gianluigi Lauro
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Stefania Terracciano
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Maria C Vaccaro
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Ines Bruno
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Samir Benayache
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis , University Mentouri Constantine , Route Ain ElBey , 25000 , Constantine , Algeria
| | - Ines Mancini
- Department of Physics , University of Trento , Via Sommarive 14 , I-38123 Povo-Trento , Italy
| | - Giuseppe Bifulco
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
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20
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Giordano A, del Gaudio F, Johansson C, Riccio R, Oppermann U, Di Micco S. Virtual Fragment Screening Identification of a Quinoline-5,8-dicarboxylic Acid Derivative as a Selective JMJD3 Inhibitor. ChemMedChem 2018; 13:1160-1164. [PMID: 29633584 PMCID: PMC6055880 DOI: 10.1002/cmdc.201800198] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 11/08/2022]
Abstract
The quinoline-5,8 dicarboxylic acid scaffold has been identified by a fragment-based approach as new potential lead compound for the development of JMJD3 inhibitors. Among them, 3-(2,4-dimethoxypyrimidin-5-yl)quinoline-5,8-dicarboxylic acid (compound 3) shows low micromolar inhibitory activity against Jumonji domain-containing protein 3 (JMJD3). The experimental evaluation of inhibitory activity against seven related isoforms of JMJD3 highlighted an unprecedented selectivity toward the biological target of interest.
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Affiliation(s)
- Assunta Giordano
- Institute of Biomolecular Chemistry (ICB)Consiglio Nazionale delle Ricerche (CNR)Via Campi Flegrei 3480078Pozzuoli (Napoli)Italy
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II, 13284084Fisciano (Salerno)Italy
| | - Federica del Gaudio
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II, 13284084Fisciano (Salerno)Italy
- PhD Program in Drug Discovery and DevelopmentUniversity of SalernoVia Giovanni Paolo II, 13284084Fisciano (Salerno)Italy
- Farmaceutici Damor S.p.AVia E. Scaglione 2780145NaplesItaly
| | - Catrine Johansson
- Botnar Research Centre, Oxford NIHR BRUOxford University, Oxford Centre for Translational Myeloma ResearchOxfordOX3 7LDUK
| | - Raffaele Riccio
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II, 13284084Fisciano (Salerno)Italy
| | - Udo Oppermann
- Botnar Research Centre, Oxford NIHR BRUOxford University, Oxford Centre for Translational Myeloma ResearchOxfordOX3 7LDUK
- Freiburg Institute for Advanced Studies (FRIAS)University of FreiburgAlbertstraße 1979104FreiburgGermany
| | - Simone Di Micco
- Department of PharmacyUniversity of SalernoVia Giovanni Paolo II, 13284084Fisciano (Salerno)Italy
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Liu X, Gu X, Yu M, Zi Y, Yu H, Wang Y, Xie Y, Xiang L. Effects of ginsenoside Rb1 on oxidative stress injury in rat spinal cords by regulating the eNOS/Nrf2/HO-1 signaling pathway. Exp Ther Med 2018; 16:1079-1086. [PMID: 30116359 PMCID: PMC6090283 DOI: 10.3892/etm.2018.6286] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 01/05/2018] [Indexed: 12/19/2022] Open
Abstract
The present study aimed to investigate whether ginsenoside Rb1 (G-Rb1) attenuates spinal cord injury-associated oxidative stress in rats by regulating the endothelial nitric oxide synthase eNOS/nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase (HO)-1 signaling pathway. Sprague Dawley rats were randomly divided into the sham operation group (S group), spinal cord injury group (SCI group), G-Rb1 treatment group (G-Rb1 group) and SCI+G-Rb1+Inhibitor L-name group (L-name group). The posterior limb function was evaluated via the Basso, Beattie and Bresnahan scoring method. The levels of superoxide dismutase (SOD), malondialdehyde (MDA), catalase (CAT) and glutathione (GSH) in serum were measured by ELISA. The pathological changes in the spinal cord were observed by H&E staining. Reverse transcription-quantitative polymerase chain reaction and western blot analyses were used to detect eNOS, phosphorylated (p)-eNOS, heat shock protein (HSP)90, Nrf2 and NAD(P)H quinone dehydrogenase 1 (Nqo1) at the mRNA and protein level. Immunohistochemistry was used to detect the expression of Nrf2 and p-eNOS. Compared with the S group, the scores of spinal cord function in the SCI group were significantly lower, and the levels of MDA were significantly increased, while the levels of SOD, CAT and GSH protein in spinal cord were significantly decreased (P<0.05). The spinal cord tissue exhibited hemorrhage, neuronal degeneration/necrosis, as well as mononuclear cell and lymphocyte infiltration. The eNOS, HSP90, Nrf2, Nqo1 and HO-1 mRNA levels were decreased (P<0.05). Compared with those in the SCI group, the spinal cord function score in the G-Rb1 group were significantly higher and the serum MDA content was significantly decreased, while the activity of SOD, CAT and GSH was significantly increased (P<0.05). The degeneration/necrosis of spinal cord neurons was attenuated, inflammatory cell infiltration was significantly reduced and the levels of eNOS, HSP90, Nrf2, Nqo1 and HO-1 were significantly upregulated (P<0.05). In the group that was administered the eNOS inhibitor L-name, the levels of eNOS, HSP90, Nrf2, Nqo1 and HO-1 were significantly decreased. In conclusion, G-Rb1 attenuates oxidative stress in injured spinal cords. The mechanism may at least in part involve the eNOS/Nrf2/HO-1 pathway.
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Affiliation(s)
- Xinwei Liu
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Xiaochuan Gu
- Department of Orthopedics, Changhai Hospital Αffiliated to The Second Military Medical University, Shanghai 200433, P.R. China
| | - Miaomiao Yu
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Ying Zi
- Department of Emergency, Hospital 463 of the PLA, Shenyang, Liaoning 110042, P.R. China
| | - Hailong Yu
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Yu Wang
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Yanchun Xie
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Liangbi Xiang
- Department of Orthopedics, Rescue Center of Severe Wound and Trauma of the PLA, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
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22
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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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23
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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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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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Ganesan K, Xu B. Telomerase Inhibitors from Natural Products and Their Anticancer Potential. Int J Mol Sci 2017; 19:ijms19010013. [PMID: 29267203 PMCID: PMC5795965 DOI: 10.3390/ijms19010013] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/10/2017] [Accepted: 12/19/2017] [Indexed: 12/25/2022] Open
Abstract
Telomeres and telomerase are nowadays exploring traits on targets for anticancer therapy. Telomerase is a unique reverse transcriptase enzyme, considered as a primary factor in almost all cancer cells, which is mainly responsible to regulate the telomere length. Hence, telomerase ensures the indefinite cell proliferation during malignancy—a hallmark of cancer—and this distinctive feature has provided telomerase as the preferred target for drug development in cancer therapy. Deactivation of telomerase and telomere destabilization by natural products provides an opening to succeed new targets for cancer therapy. This review aims to provide a fundamental knowledge for research on telomere, working regulation of telomerase and its various binding proteins to inhibit the telomere/telomerase complex. In addition, the review summarizes the inhibitors of the enzyme catalytic subunit and RNA component, natural products that target telomeres, and suppression of transcriptional and post-transcriptional levels. This extensive understanding of telomerase biology will provide indispensable information for enhancing the efficiency of rational anti-cancer drug design.
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Affiliation(s)
- Kumar Ganesan
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China.
| | - Baojun Xu
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China.
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Shao LD, Su J, Ye B, Liu JX, Zuo ZL, Li Y, Wang YY, Xia C, Zhao QS. Design, Synthesis, and Biological Activities of Vibsanin B Derivatives: A New Class of HSP90 C-Terminal Inhibitors. J Med Chem 2017; 60:9053-9066. [PMID: 29019670 DOI: 10.1021/acs.jmedchem.7b01395] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Previously, vibsanin B (ViB) was found to preferentially target HSP90β compared to HSP90α. In this study, multiple experiments, including pull-down assays of biotin-ViB with recombinant HSP90β-NTD, MD, CTD, and full-length HSP90β, molecular docking of ViB and its derivatives to the HSP90 CTD, and a inhibition assay of interaction of the HSP90β CTD with GST-tagged cyclophilin 40 (Cyp40) by ViB derivatives, suggest that ViB can directly bind to the HSP90 C-terminus. On the basis of the docking predictions and primary structure-activity relationships (SARs), a series of ViB analogues devised with focus on the C18 position, along with compounds derivatized at the C4, C7, and C8 positions, were designed and chemically synthesized. Compound 12f (IC50 = 1.12 μM against SK-BR-3) exhibits great potency with drug-like properties. Overall, our findings demonstrate that compounds with the vibsanin B scaffold are a new class of HSP90 C-terminal inhibitors with considerable potential as anticancer agents.
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Affiliation(s)
- Li-Dong Shao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Jia Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Baixin Ye
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Jiang-Xin Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yue-Ying Wang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Chengfeng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China.,University of Chinese Academy of Science , Beijing 100049, China
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Tian C, Sun R, Liu K, Fu L, Liu X, Zhou W, Yang Y, Yang J. Multiplexed Thiol Reactivity Profiling for Target Discovery of Electrophilic Natural Products. Cell Chem Biol 2017; 24:1416-1427.e5. [PMID: 28988947 DOI: 10.1016/j.chembiol.2017.08.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/06/2017] [Accepted: 08/30/2017] [Indexed: 02/09/2023]
Abstract
Electrophilic groups, such as Michael acceptors, expoxides, are common motifs in natural products (NPs). Electrophilic NPs can act through covalent modification of cysteinyl thiols on functional proteins, and exhibit potent cytotoxicity and anti-inflammatory/cancer activities. Here we describe a new chemoproteomic strategy, termed multiplexed thiol reactivity profiling (MTRP), and its use in target discovery of electrophilic NPs. We demonstrate the utility of MTRP by identifying cellular targets of gambogic acid, an electrophilic NP that is currently under evaluation in clinical trials as anticancer agent. Moreover, MTRP enables simultaneous comparison of seven structurally diversified α,β-unsaturated γ-lactones, which provides insights into the relative proteomic reactivity and target preference of diverse structural scaffolds coupled to a common electrophilic motif and reveals various potential druggable targets with liganded cysteines. We anticipate that this new method for thiol reactivity profiling in a multiplexed manner will find broad application in redox biology and drug discovery.
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Affiliation(s)
- Caiping Tian
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences - Beijing, Beijing 102206, China
| | - Rui Sun
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences - Beijing, Beijing 102206, China; State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing 211198, China
| | - Keke Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences - Beijing, Beijing 102206, China
| | - Ling Fu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences - Beijing, Beijing 102206, China
| | - Xiaoyu Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Wanqi Zhou
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Yong Yang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing 211198, China
| | - Jing Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences - Beijing, Beijing 102206, China.
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