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Li X, Wang C, Chai X, Liu X, Qiao K, Fu Y, Jin Y, Jia Q, Zhu F, Zhang Y. Discovery of Potent Selective HDAC6 Inhibitors with 5-Phenyl-1 H-indole Fragment: Virtual Screening, Rational Design, and Biological Evaluation. J Chem Inf Model 2024; 64:6147-6161. [PMID: 39042494 DOI: 10.1021/acs.jcim.4c01052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Among the HDACs family, histone deacetylase 6 (HDAC6) has attracted extensive attention due to its unique structure and biological functions. Numerous studies have shown that compared with broad-spectrum HDACs inhibitors, selective HDAC6 inhibitors exert ideal efficacy in tumor treatment with insignificant toxic and side effects, demonstrating promising clinical application prospect. Herein, we carried out rational drug design by integrating a deep learning model, molecular docking, and molecular dynamics simulation technology to construct a virtual screening process. The designed derivatives with 5-phenyl-1H-indole fragment as Cap showed desirable cytotoxicity to the various tumor cell lines, all of which were within 15 μM (ranging from 0.35 to 14.87 μM), among which compound 5i had the best antiproliferative activities against HL-60 (IC50 = 0.35 ± 0.07 μM) and arrested HL-60 cells in the G0/G1 phase. In addition, 5i exhibited better isotype selective inhibitory activities due to the potent potency against HDAC6 (IC50 = 5.16 ± 0.25 nM) and the reduced inhibitory activities against HDAC1 (selective index ≈ 124), which was further verified by immunoblotting results. Moreover, the representative binding conformation of 5i on HDAC6 was revealed and the key residues contributing 5i's binding were also identified via decomposition free-energy analysis. The discovery of lead compound 5i also indicates that virtual screening is still a beneficial tool in drug discovery and can provide more molecular skeletons with research potential for drug design, which is worthy of widespread application.
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Affiliation(s)
- Xuedong Li
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Chengzhao Wang
- College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Xu Chai
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Xingang Liu
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Kening Qiao
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Yan Fu
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Yanzhao Jin
- Shijiazhuang Xianyu Digital Biotechnology Co., Ltd, Shijiazhuang 050024, PR China
| | - Qingzhong Jia
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Feng Zhu
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
- College of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery and Release Systems, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, PR China
| | - Yang Zhang
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China
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2
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Chang YC, Gnann C, Steimbach RR, Bayer FP, Lechner S, Sakhteman A, Abele M, Zecha J, Trendel J, The M, Lundberg E, Miller AK, Kuster B. Decrypting lysine deacetylase inhibitor action and protein modifications by dose-resolved proteomics. Cell Rep 2024; 43:114272. [PMID: 38795348 DOI: 10.1016/j.celrep.2024.114272] [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: 12/19/2023] [Revised: 03/12/2024] [Accepted: 05/09/2024] [Indexed: 05/27/2024] Open
Abstract
Lysine deacetylase inhibitors (KDACis) are approved drugs for cutaneous T cell lymphoma (CTCL), peripheral T cell lymphoma (PTCL), and multiple myeloma, but many aspects of their cellular mechanism of action (MoA) and substantial toxicity are not well understood. To shed more light on how KDACis elicit cellular responses, we systematically measured dose-dependent changes in acetylation, phosphorylation, and protein expression in response to 21 clinical and pre-clinical KDACis. The resulting 862,000 dose-response curves revealed, for instance, limited cellular specificity of histone deacetylase (HDAC) 1, 2, 3, and 6 inhibitors; strong cross-talk between acetylation and phosphorylation pathways; localization of most drug-responsive acetylation sites to intrinsically disordered regions (IDRs); an underappreciated role of acetylation in protein structure; and a shift in EP300 protein abundance between the cytoplasm and the nucleus. This comprehensive dataset serves as a resource for the investigation of the molecular mechanisms underlying KDACi action in cells and can be interactively explored online in ProteomicsDB.
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Affiliation(s)
- Yun-Chien Chang
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Christian Gnann
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH - Royal Institute of Technology, Stockholm, Sweden
| | - Raphael R Steimbach
- Cancer Drug Development, German Cancer Research Center (DKFZ), Heidelberg, Baden-Württemberg, Germany; Biosciences Faculty, Heidelberg University, Heidelberg, Baden-Württemberg, Germany
| | - Florian P Bayer
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Severin Lechner
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Amirhossein Sakhteman
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Miriam Abele
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany; Bavarian Center for Biomolecular Mass Spectrometry (BayBioMS), TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Jana Zecha
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Jakob Trendel
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Matthew The
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany
| | - Emma Lundberg
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH - Royal Institute of Technology, Stockholm, Sweden; Department of Bioengineering, Stanford University, Stanford, CA, USA; Department of Pathology, Stanford University, Stanford, CA, USA
| | - Aubry K Miller
- Cancer Drug Development, German Cancer Research Center (DKFZ), Heidelberg, Baden-Württemberg, Germany; German Cancer Consortium (DKTK), Heidelberg, Baden-Württemberg, Germany
| | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Bavaria, Germany; German Cancer Consortium (DKTK), Partner Site Munich and German Cancer Research Center (DKFZ), Heidelberg, Baden-Württemberg, Germany.
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3
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Khatun S, Bhagat RP, Amin SA, Jha T, Gayen S. Density functional theory (DFT) studies in HDAC-based chemotherapeutics: Current findings, case studies and future perspectives. Comput Biol Med 2024; 175:108468. [PMID: 38657469 DOI: 10.1016/j.compbiomed.2024.108468] [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: 11/02/2023] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024]
Abstract
Density Functional Theory (DFT) is a quantum chemical computational method used to predict and analyze the electronic properties of atoms, molecules, and solids based on the density of electrons rather than wavefunctions. It provides insights into the structure, bonding, and behavior of different molecules, including those involved in the development of chemotherapeutic agents, such as histone deacetylase inhibitors (HDACis). HDACs are a wide group of metalloenzymes that facilitate the removal of acetyl groups from acetyl-lysine residues situated in the N-terminal tail of histones. Abnormal HDAC recruitment has been linked to several human diseases, especially cancer. Therefore, it has been recognized as a prospective target for accelerating the development of anticancer therapies. Researchers have studied HDACs and its inhibitors extensively using a combination of experimental methods and diverse in-silico approaches such as machine learning and quantitative structure-activity relationship (QSAR) methods, molecular docking, molecular dynamics, pharmacophore mapping, and more. In this context, DFT studies can make significant contribution by shedding light on the molecular properties, interactions, reaction pathways, transition states, reactivity and mechanisms involved in the development of HDACis. This review attempted to elucidate the scope in which DFT methodologies may be used to enhance our comprehension of the molecular aspects of HDAC inhibitors, aiding in the rational design and optimization of these compounds for therapeutic applications in cancer and other ailments. The insights gained can guide experimental efforts toward developing more potent and selective HDAC inhibitors.
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Affiliation(s)
- Samima Khatun
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Rinki Prasad Bhagat
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Sk Abdul Amin
- Department of Pharmaceutical Technology, JIS University, 81, Nilgunj Road, Agarpara, Kolkata, West Bengal, India
| | - Tarun Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Shovanlal Gayen
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.
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4
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Ling H, Li Y, Peng C, Yang S, Seto E. HDAC10 inhibition represses melanoma cell growth and BRAF inhibitor resistance via upregulating SPARC expression. NAR Cancer 2024; 6:zcae018. [PMID: 38650694 PMCID: PMC11034028 DOI: 10.1093/narcan/zcae018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/08/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
Secreted protein acidic and rich in cysteine (SPARC), a conserved secreted glycoprotein, plays crucial roles in regulating various biological processes. SPARC is highly expressed and has profound implications in several cancer types, including melanoma. Understanding the mechanisms that govern SPARC expression in cancers has the potential to lead to improved cancer diagnosis, prognosis, treatment strategies, and patient outcomes. Here, we demonstrate that histone deacetylase 10 (HDAC10) is a key regulator of SPARC expression in melanoma cells. Depletion or inhibition of HDAC10 upregulates SPARC expression, whereas overexpression of HDAC10 downregulates it. Mechanistically, HDAC10 coordinates with histone acetyltransferase p300 to modulate the state of acetylation of histone H3 at lysine 27 (H3K27ac) at SPARC regulatory elements and the recruitment of bromodomain-containing protein 4 (BRD4) to these regions, thereby fine-tuning SPARC transcription. HDAC10 depletion and resultant SPARC upregulation repress melanoma cell growth primarily by activating AMPK signaling and inducing autophagy. Moreover, SPARC upregulation due to HDAC10 depletion partly accounts for the resensitization of resistant cells to a BRAF inhibitor. Our work reveals the role of HDAC10 in gene regulation through indirect histone modification and suggests a potential therapeutic strategy for melanoma or other cancers by targeting HDAC10 and SPARC.
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Affiliation(s)
- Hongbo Ling
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Yixuan Li
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Changmin Peng
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Shengyu Yang
- Department of Cellular and Molecular Physiology, Penn State Cancer Institute, The Penn State University, 400 University Drive, Hershey, PA 17033, USA
| | - Edward Seto
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
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5
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Wang H, Xiong X, Zhang J, Wu M, Gu Y, Chen Y, Gu Y, Wang P. Near-Infrared Light-Driven Nanoparticles for Cancer Photoimmunotherapy by Synergizing Immune Cell Death and Epigenetic Regulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309202. [PMID: 38100237 DOI: 10.1002/smll.202309202] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/01/2023] [Indexed: 05/25/2024]
Abstract
Histone deacetylases (HDACs) are a class of epigenetic enzymes that are closely related to tumorigenesis and suppress the expression of tumor suppressor genes. Whereas the HDACs inhibitors can release DNA into the cytoplasm and trigger innate immunity. However, the high density of chromatin limits DNA damage and release. In this study, suitable nanosized CycNHOH NPs (150 nm) and CypNHOH NPs (85 nm) efficiently accumulate at the tumor site due to the enhanced permeability and retention (EPR) effect. In addition, robust single-linear oxygen generation and good photothermal conversion efficiency under NIR laser irradiation accelerated the DNA damage process. By effectively initiating immune cell death, CypNHOH NPs activated both innate and adaptive immunity by maturing dendritic cells, infiltrating tumors with natural killer cells, and activating cytotoxic T lymphocytes, which offer a fresh perspective for the development of photo-immunotherapy.
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Affiliation(s)
- Huizhe Wang
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiaohui Xiong
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Jiaqi Zhang
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Meicen Wu
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, 999077, China
| | - Yinhui Gu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Yanli Chen
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - YueQing Gu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
| | - Peng Wang
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China
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6
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Rossi S, Tatangelo V, Dichiara M, Butini S, Gemma S, Brogi S, Pasquini S, Cappello M, Vincenzi F, Varani K, Lopresti L, Malchiodi M, Carrara C, Gozzetti A, Bocchia M, Marotta G, Patrussi L, Carullo G, Baldari CT, Campiani G. A novel potent class I HDAC inhibitor reverses the STAT4/p66Shc apoptotic defect in B cells from chronic lymphocytic leukemia patients. Biomed Pharmacother 2024; 174:116537. [PMID: 38579402 DOI: 10.1016/j.biopha.2024.116537] [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: 01/12/2024] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
Chronic Lymphocytic Leukemia (CLL) patients have a defective expression of the proapoptotic protein p66Shc and of its transcriptional factor STAT4, which evoke molecular abnormalities, impairing apoptosis and worsening disease prognosis and severity. p66Shc expression is epigenetically controlled and transcriptionally modulated by STAT4; epigenetic modifiers are deregulated in CLL cells and specific histone deacetylases (HDACs) like HDAC1, are overexpressed. Reactivation of STAT4/p66Shc expression may represent an attractive and challenging strategy to reverse CLL apoptosis defects. New selective class I HDAC inhibitors (HDACis, 6a-g) were developed with increased potency over existing agents and preferentially interfering with the CLL-relevant isoform HDAC1, to unveil the role of class I HDACs in the upregulation of STAT4 expression, which upregulates p66Shc expression and hence normalizes CLL cell apoptosis. 6c (chlopynostat) was identified as a potent HDAC1i with a superior profile over entinostat. 6c induces marked apoptosis of CLL cells compared with SAHA, which was associated with an upregulation of STAT4/p66Shc protein expression. The role of HDAC1, but not HDAC3, in the epigenetic upregulation of STAT4/p66Shc was demonstrated for the first time in CLL cells and was validated in siRNA-induced HDAC1/HDAC3 knock-down EBV-B cells. To sum up, HDAC1 inhibition is necessary to reactivate STAT4/p66Shc expression in patients with CLL. 6c is one of the most potent HDAC1is known to date and represents a novel pharmacological tool for reversing the impairment of the STAT4/p66Shc apoptotic machinery.
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MESH Headings
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Apoptosis/drug effects
- Histone Deacetylase Inhibitors/pharmacology
- Src Homology 2 Domain-Containing, Transforming Protein 1/metabolism
- Src Homology 2 Domain-Containing, Transforming Protein 1/genetics
- STAT4 Transcription Factor/metabolism
- B-Lymphocytes/drug effects
- B-Lymphocytes/metabolism
- Histone Deacetylase 1/metabolism
- Histone Deacetylase 1/antagonists & inhibitors
- Benzamides/pharmacology
- Male
- Aged
- Female
- Middle Aged
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Affiliation(s)
- Sara Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Vanessa Tatangelo
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Maria Dichiara
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Sandra Gemma
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Simone Brogi
- Department of Pharmacy, University of Pisa, Via Bonanno, Pisa 56126, Italy
| | - Silvia Pasquini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Martina Cappello
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Fabrizio Vincenzi
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Katia Varani
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Ludovica Lopresti
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Margherita Malchiodi
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Chiara Carrara
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Alessandro Gozzetti
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Monica Bocchia
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Giuseppe Marotta
- Stem Cell Transplant and Cellular Therapy Unit, University Hospital, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Laura Patrussi
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy.
| | - Gabriele Carullo
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy.
| | - Cosima T Baldari
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy; Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-7346, Iran
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7
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Christianson DW. Chemical Versatility in Catalysis and Inhibition of the Class IIb Histone Deacetylases. Acc Chem Res 2024; 57:1135-1148. [PMID: 38530703 PMCID: PMC11021156 DOI: 10.1021/acs.accounts.3c00801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
The zinc-dependent histone deacetylases (HDACs 1-11) belong to the arginase-deacetylase superfamily of proteins, members of which share a common α/β fold and catalytic metal binding site. While several HDACs play a role in epigenetic regulation by catalyzing acetyllysine hydrolysis in histone proteins, the biological activities of HDACs extend far beyond histones. HDACs also deacetylate nonhistone proteins in the nucleus as well as the cytosol to regulate myriad cellular processes. The substrate pool is even more diverse in that certain HDACs can hydrolyze other covalent modifications. For example, HDAC6 is also a lysine decrotonylase, and HDAC11 is a lysine-fatty acid deacylase. Surprisingly, HDAC10 is not a lysine deacetylase but instead is a polyamine deacetylase. Thus, the HDACs are biologically and chemically versatile catalysts as they regulate the function of diverse protein and nonprotein substrates throughout the cell.Owing to their critical regulatory functions, HDACs serve as prominent targets for drug design. At present, four HDAC inhibitors are FDA-approved for cancer chemotherapy. However, these inhibitors are active against multiple HDAC isozymes, and a lack of selectivity is thought to contribute to undesirable side effects. Current medicinal chemistry campaigns focus on the development of isozyme-selective inhibitors, and many such studies largely focus on HDAC6 and HDAC10. HDAC6 is a target for therapeutic intervention due to its cellular role as a tubulin deacetylase and tau deacetylase, and selective inhibitors are being studied in cancer chemotherapy and the treatment of peripheral neuropathy. Crystal structures of enzyme-inhibitor complexes reveal how various features of inhibitor design, such as zinc-coordinating groups, bifurcated capping groups, and aromatic fluorination patterns, contribute to affinity and isozyme selectivity. The polyamine deacetylase HDAC10 is also an emerging target for cancer chemotherapy. Crystal structures of intact substrates trapped in the HDAC10 active site reveal the molecular basis of strikingly narrow substrate specificity for N8-acetylspermidine hydrolysis. Active site features responsible for substrate specificity have been successfully exploited in the design of potent and selective inhibitors.In this Account, I review the structural chemistry and inhibition of HDACs, highlighting recent X-ray crystallographic and functional studies of HDAC6 and HDAC10 in my laboratory. These studies have yielded fascinating snapshots of catalysis as well as novel chemical transformations involving bound inhibitors. The zinc-bound water molecule in the HDAC active site is the catalytic nucleophile in the deacetylation reaction, but this activated water molecule can also react with inhibitor C═O or C═N groups to yield unanticipated reaction products that bind exceptionally tightly. Versatile active site chemistry unleashes the full inhibitory potential of such compounds, and X-ray crystallography allows us to view this chemistry in action.
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Affiliation(s)
- David W. Christianson
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, 19104-6323, USA
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8
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Cheng B, Pan W, Xiao Y, Ding Z, Zhou Y, Fei X, Liu J, Su Z, Peng X, Chen J. HDAC-targeting epigenetic modulators for cancer immunotherapy. Eur J Med Chem 2024; 265:116129. [PMID: 38211468 DOI: 10.1016/j.ejmech.2024.116129] [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: 12/04/2023] [Revised: 12/26/2023] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
HDAC inhibitors, which can inhibit the activity of HDAC enzymes, have been extensively studied in tumor immunotherapy and have shown potential therapeutic effects in cancer immunotherapy. To date, numerous small molecule HDAC inhibitors have been identified, but many of them suffer from limited clinical efficacy and serious toxicity. Hence, HDAC inhibitor-based combination therapies, and other HDAC modulators (e.g. PROTAC degraders, dual-acting agents) have attracted great attention with significant advancements achieved in the past few years due to their superior efficacy compared to single-target HDAC inhibitors. In this review, we overviewed the recent progress on HDAC-based drug discovery with a focus on HDAC inhibitor-based drug combination therapy and other HDAC-targeting strategies (e.g. selective HDAC inhibitors, HDAC-based dual-target inhibitors, and PROTAC HDAC degraders) for cancer immunotherapy. In addition, we also summarized the reported co-crystal structures of HDAC inhibitors in complex with their target proteins and the binding interactions. Finally, the challenges and future directions for HDAC-based drug discovery in cancer immunotherapy are also discussed in detail.
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Affiliation(s)
- Binbin Cheng
- School of Medicine, Hubei Polytechnic University, Huangshi, 435003, PR China; Key Laboratory of Joint Diagnosis and Treatment of Chronic Liver Disease and Liver Cancer of Lishui, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui, Zhejiang, 323000, PR China; Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, PR China
| | - Wei Pan
- CardioIogy Department, Geriatric Department, Foshan Women and Children Hospital, Foshan, Guangdong, 528000, PR China
| | - Yao Xiao
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan Wuchang Hospital, Wuchang, 430063, PR China
| | - Zongbao Ding
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519041, PR China
| | - Yingxing Zhou
- School of Medicine, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Xiaoting Fei
- School of Medicine, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Jin Liu
- School of Medicine, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Zhenhong Su
- School of Medicine, Hubei Polytechnic University, Huangshi, 435003, PR China.
| | - Xiaopeng Peng
- College of Pharmacy, Gannan Medical University, Ganzhou, 314000, PR China.
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, 510515, PR China.
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9
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Guo H, Ren H, Han K, Li J, Dong Y, Zhao X, Li C. Knockdown of HDAC10 inhibits POLE2-mediated DNA damage repair in NSCLC cells by increasing SP1 acetylation levels. Pulm Pharmacol Ther 2023; 83:102250. [PMID: 37657752 DOI: 10.1016/j.pupt.2023.102250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/31/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023]
Abstract
HDAC10 has been reported to be associated with poor prognosis in patients with non-small cell lung cancer (NSCLC), however, the regulatory role and mechanisms of HDAC10 in NSCLC have not been investigated. In this study, we found that HDAC10 was increased in NSCLC patients and cell lines. And high expression of HDAC10 is linked to poor survival in NSCLC patients. The results showed that knockdown of HDAC10 triggered DNA damage, S-phase arrest, and proliferation inhibition in A549 and H1299 cells. In addition, knockdown of HDAC10 promoted cell ferroptosis by enhancing ROS, MDA and Fe2+ levels. Mechanistically, HDAC10 knockdown reduced SP1 expression and elevated the acetylation level of SP1, which inhibited the binding of SP1 to the promoter of POLE2, resulting in reduced POLE2 expression. Overexpression of SP1 or POLE2 partially reversed the effects of HDAC10 deletion on NSCLC cell proliferation and ferroptosis. In conclusion, knockdown of HDAC10 inhibited the proliferation of NSCLC cells and promoted their ferroptosis by regulating the SP1/POLE2 axis. HDAC10 might be a promising target for the treatment of NSCLC.
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Affiliation(s)
- Hua Guo
- Department of Respiratory and Critical Care Medicine, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710004, China
| | - Hui Ren
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710048, China; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710048, China
| | - Kun Han
- Department of Gastroenterology, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710004, China
| | - Jianying Li
- Department of Respiratory and Critical Care Medicine, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710004, China
| | - Yu Dong
- Department of Respiratory and Critical Care Medicine, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710004, China
| | - Xuan Zhao
- Department of Respiratory and Critical Care Medicine, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710004, China
| | - Chunqi Li
- Internal Medicine, Hospital of Xi'an International Studies University, Xi'an, Shaanxi, 710061, China.
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10
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Lambona C, Zwergel C, Fioravanti R, Valente S, Mai A. Histone deacetylase 10: A polyamine deacetylase from the crystal structure to the first inhibitors. Curr Opin Struct Biol 2023; 82:102668. [PMID: 37542907 DOI: 10.1016/j.sbi.2023.102668] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/16/2023] [Accepted: 07/10/2023] [Indexed: 08/07/2023]
Abstract
Polyamine deacetylase activity was discovered more than 40 years ago, but the responsible histone deacetylase 10 (HDAC10) was described only recently. HDAC10 is a class IIb HDAC, as is its closest relative, the α-tubulin deacetylase HDAC6. HDAC10 has attracted attention over the last 2 years due to its role in diseases, especially cancer. This review summarises chemical and structural biology approaches to the study of HDAC10. Light will be shed on recent advances in understanding the complex structural biology of HDAC10 and the discovery of the first highly selective HDAC10 inhibitors.
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Affiliation(s)
- Chiara Lambona
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Clemens Zwergel
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Rossella Fioravanti
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Pasteur Institute, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
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11
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Lechner S, Steimbach RR, Wang L, Deline ML, Chang YC, Fromme T, Klingenspor M, Matthias P, Miller AK, Médard G, Kuster B. Chemoproteomic target deconvolution reveals Histone Deacetylases as targets of (R)-lipoic acid. Nat Commun 2023; 14:3548. [PMID: 37322067 PMCID: PMC10272112 DOI: 10.1038/s41467-023-39151-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/26/2023] [Indexed: 06/17/2023] Open
Abstract
Lipoic acid is an essential enzyme cofactor in central metabolic pathways. Due to its claimed antioxidant properties, racemic (R/S)-lipoic acid is used as a food supplement but is also investigated as a pharmaceutical in over 180 clinical trials covering a broad range of diseases. Moreover, (R/S)-lipoic acid is an approved drug for the treatment of diabetic neuropathy. However, its mechanism of action remains elusive. Here, we performed chemoproteomics-aided target deconvolution of lipoic acid and its active close analog lipoamide. We find that histone deacetylases HDAC1, HDAC2, HDAC3, HDAC6, HDAC8, and HDAC10 are molecular targets of the reduced form of lipoic acid and lipoamide. Importantly, only the naturally occurring (R)-enantiomer inhibits HDACs at physiologically relevant concentrations and leads to hyperacetylation of HDAC substrates. The inhibition of HDACs by (R)-lipoic acid and lipoamide explain why both compounds prevent stress granule formation in cells and may also provide a molecular rationale for many other phenotypic effects elicited by lipoic acid.
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Affiliation(s)
- Severin Lechner
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Raphael R Steimbach
- Cancer Drug Development, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Biosciences Faculty, Heidelberg University, Heidelberg, Germany
| | - Longlong Wang
- Friedrich Miescher Institute for Biomedical Research, 4058, Basel, Switzerland
- Faculty of Sciences, University of Basel, 4031, Basel, Switzerland
| | - Marshall L Deline
- Chair of Molecular Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Yun-Chien Chang
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Tobias Fromme
- Chair of Molecular Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
- EKFZ - Else Kröner Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
| | - Martin Klingenspor
- Chair of Molecular Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
- EKFZ - Else Kröner Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
- ZIEL Institute for Food & Health, Technical University of Munich, Freising, Germany
| | - Patrick Matthias
- Friedrich Miescher Institute for Biomedical Research, 4058, Basel, Switzerland
- Faculty of Sciences, University of Basel, 4031, Basel, Switzerland
| | - Aubry K Miller
- Cancer Drug Development, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Guillaume Médard
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, TUM School of Life Sciences, Technical University of Munich, Freising, Germany.
- German Cancer Consortium (DKTK), Heidelberg, Germany.
- Bavarian Center for Biomolecular Mass Spectrometry (BayBioMS), Technical University of Munich, Freising, Germany.
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12
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Bhattacharya A, Amin SA, Kumar P, Jha T, Gayen S. Exploring structural requirements of HDAC10 inhibitors through comparative machine learning approaches. J Mol Graph Model 2023; 123:108510. [PMID: 37216830 DOI: 10.1016/j.jmgm.2023.108510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/26/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023]
Abstract
Histone deacetylase (HDAC) inhibitors are in the limelight of anticancer drug development and research. HDAC10 is one of the class-IIb HDACs, responsible for cancer progression. The search for potent and effective HDAC10 selective inhibitors is going on. However, the absence of human HDAC10 crystal/NMR structure hampers the structure-based drug design of HDAC10 inhibitors. Different ligand-based modeling techniques are the only hope to speed up the inhibitor design. In this study, we applied different ligand-based modeling techniques on a diverse set of HDAC10 inhibitors (n = 484). Machine learning (ML) models were developed that could be used to screen unknown compounds as HDAC10 inhibitors from a large chemical database. Moreover, Bayesian classification and Recursive partitioning models were used to identify the structural fingerprints regulating the HDAC10 inhibitory activity. Additionally, a molecular docking study was performed to understand the binding pattern of the identified structural fingerprints towards the active site of HDAC10. Overall, the modeling insight might offer helpful information for medicinal chemists to design and develop efficient HDAC10 inhibitors.
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Affiliation(s)
- Arijit Bhattacharya
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Sk Abdul Amin
- Department of Pharmaceutical Technology, JIS University, 81, Nilgunj Road, Agarpara, Kolkata, West Bengal, India; Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Prabhat Kumar
- Department of Computer Science, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Tarun Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.
| | - Shovanlal Gayen
- Laboratory of Drug Design and Discovery, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.
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13
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Ptacek J, Snajdr I, Schimer J, Kutil Z, Mikesova J, Baranova P, Havlinova B, Tueckmantel W, Majer P, Kozikowski A, Barinka C. Selectivity of Hydroxamate- and Difluoromethyloxadiazole-Based Inhibitors of Histone Deacetylase 6 In Vitro and in Cells. Int J Mol Sci 2023; 24:4720. [PMID: 36902164 PMCID: PMC10003107 DOI: 10.3390/ijms24054720] [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: 02/06/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/05/2023] Open
Abstract
Histone deacetylase 6 (HDAC6) is a unique member of the HDAC family of enzymes due to its complex domain organization and cytosolic localization. Experimental data point toward the therapeutic use of HDAC6-selective inhibitors (HDAC6is) for use in both neurological and psychiatric disorders. In this article, we provide side-by-side comparisons of hydroxamate-based HDAC6is frequently used in the field and a novel HDAC6 inhibitor containing the difluoromethyl-1,3,4-oxadiazole function as an alternative zinc-binding group (compound 7). In vitro isotype selectivity screening uncovered HDAC10 as a primary off-target for the hydroxamate-based HDAC6is, while compound 7 features exquisite 10,000-fold selectivity over all other HDAC isoforms. Complementary cell-based assays using tubulin acetylation as a surrogate readout revealed approximately 100-fold lower apparent potency for all compounds. Finally, the limited selectivity of a number of these HDAC6is is shown to be linked to cytotoxicity in RPMI-8226 cells. Our results clearly show that off-target effects of HDAC6is must be considered before attributing observed physiological readouts solely to HDAC6 inhibition. Moreover, given their unparalleled specificity, the oxadiazole-based inhibitors would best be employed either as research tools in further probing HDAC6 biology or as leads in the development of truly HDAC6-specific compounds in the treatment of human disease states.
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Affiliation(s)
- Jakub Ptacek
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Ivan Snajdr
- Institute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic, Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Jiri Schimer
- Institute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic, Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Zsofia Kutil
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Jana Mikesova
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Petra Baranova
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Barbora Havlinova
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Werner Tueckmantel
- StarWise Therapeutics LLC, University Research Park, Inc., Madison, WI 53719, USA
| | - Pavel Majer
- Institute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic, Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Alan Kozikowski
- StarWise Therapeutics LLC, University Research Park, Inc., Madison, WI 53719, USA
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Cyril Barinka
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
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