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Li CY, Wang W, Leung CH, Yang GJ, Chen J. KDM5 family as therapeutic targets in breast cancer: Pathogenesis and therapeutic opportunities and challenges. Mol Cancer 2024; 23:109. [PMID: 38769556 PMCID: PMC11103982 DOI: 10.1186/s12943-024-02011-0] [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: 02/23/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024] Open
Abstract
Breast cancer (BC) is the most frequent malignant cancer diagnosis and is a primary factor for cancer deaths in women. The clinical subtypes of BC include estrogen receptor (ER) positive, progesterone receptor (PR) positive, human epidermal growth factor receptor 2 (HER2) positive, and triple-negative BC (TNBC). Based on the stages and subtypes of BC, various treatment methods are available with variations in the rates of progression-free disease and overall survival of patients. However, the treatment of BC still faces challenges, particularly in terms of drug resistance and recurrence. The study of epigenetics has provided new ideas for treating BC. Targeting aberrant epigenetic factors with inhibitors represents a promising anticancer strategy. The KDM5 family includes four members, KDM5A, KDM5B, KDM5C, and KDMD, all of which are Jumonji C domain-containing histone H3K4me2/3 demethylases. KDM5 proteins have been extensively studied in BC, where they are involved in suppressing or promoting BC depending on their specific upstream and downstream pathways. Several KDM5 inhibitors have shown potent BC inhibitory activity in vitro and in vivo, but challenges still exist in developing KDM5 inhibitors. In this review, we introduce the subtypes of BC and their current therapeutic options, summarize KDM5 family context-specific functions in the pathobiology of BC, and discuss the outlook and pitfalls of KDM5 inhibitors in this disease.
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Affiliation(s)
- Chang-Yun Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, Zhejiang, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Wanhe Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macau, China.
- Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China.
- MoE Frontiers Science Centre for Precision Oncology, University of Macau, Macau, China.
| | - Guan-Jun Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, Zhejiang, China.
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China.
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, Zhejiang, China.
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China.
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2
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Zhou J, Chen Q, Ren R, Yang J, Liu B, Horton JR, Chang C, Li C, Maksoud L, Yang Y, Rotili D, Zhang X, Blumenthal RM, Chen T, Gao Y, Valente S, Mai A, Cheng X. Quinoline-based compounds can inhibit diverse enzymes that act on DNA. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.03.587980. [PMID: 38617249 PMCID: PMC11014617 DOI: 10.1101/2024.04.03.587980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
DNA methylation, as exemplified by cytosine-C5 methylation in mammals and adenine-N6 methylation in bacteria, is a crucial epigenetic mechanism driving numerous vital biological processes. Developing non-nucleoside inhibitors to cause DNA hypomethylation is a high priority, in order to treat a variety of significant medical conditions without the toxicities associated with existing cytidine-based hypomethylating agents. In this study, we have characterized fifteen quinoline-based analogs. Notably, compounds with additions like a methylamine ( 9 ) or methylpiperazine ( 11 ) demonstrate similar low micromolar inhibitory potency against both human DNMT1 (which generates C5-methylcytosine) and Clostridioides difficile CamA (which generates N6-methyladenine). Structurally, compounds 9 and 11 specifically intercalate into CamA-bound DNA via the minor groove, adjacent to the target adenine, leading to a substantial conformational shift that moves the catalytic domain away from the DNA. This study adds to the limited examples of DNA methyltransferases being inhibited by non-nucleotide compounds through DNA intercalation, following the discovery of dicyanopyridine-based inhibitors for DNMT1. Furthermore, our study shows that some of these quinoline-based analogs inhibit other enzymes that act on DNA, such as polymerases and base excision repair glycosylases. Finally, in cancer cells compound 11 elicits DNA damage response via p53 activation. Abstract Figure Highlights Six of fifteen quinoline-based derivatives demonstrated comparable low micromolar inhibitory effects on human cytosine methyltransferase DNMT1, and the bacterial adenine methyltransferases Clostridioides difficile CamA and Caulobacter crescentus CcrM. Compounds 9 and 11 were found to intercalate into a DNA substrate bound by CamA. These quinoline-based derivatives also showed inhibitory activity against various base excision repair DNA glycosylases, and DNA and RNA polymerases. Compound 11 provokes DNA damage response via p53 activation in cancer cells.
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Jumaniyazova E, Aghajanyan A, Kurevlev S, Tskhovrebova L, Makarov A, Gordon K, Lokhonina A, Fatkhudinov T. SP1 Gene Methylation in Head and Neck Squamous Cell Cancer in HPV-Negative Patients. Genes (Basel) 2024; 15:281. [PMID: 38540340 PMCID: PMC10970621 DOI: 10.3390/genes15030281] [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: 01/29/2024] [Revised: 02/17/2024] [Accepted: 02/21/2024] [Indexed: 04/02/2024] Open
Abstract
There is still much to learn about the epigenetic mechanisms controlling gene expression during carcinogenesis. When researching aberrant DNA methylation, active proliferative tumor cells from head and neck squamous cell cancer (HNSCC) can be used as a model. The aim of the study was to investigate the methylation status of CDKN1, CDKN2A, MYC, Smad3, SP1, and UBC genes in tumor tissue (control-normal tissue) in 50 patients (37 men and 13 women) with HPV-negative HNSCC. Methods: Bisulfite conversion methods and methyl-sensitive analysis of high-resolution melting curves were used to quantify the methylation of genes. In all patients and across various subgroups (tongue carcinoma, laryngeal and other types of carcinomas T2, T3, T4 status; age before and after 50 years; smoking and non-smoking), there are consistent differences in the methylation levels in the SP1 gene in tumor DNA compared to normal. Results: The methylation of the SP1 gene in tumor DNA suppresses its expression, hinders HNSCC cell proliferation regulation, and could be a molecular indicator of malignant cell growth. The study of DNA methylation of various genes involved in carcinogenesis is promising because hypermethylated promoters can serve as potential biomarkers of disease.
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Affiliation(s)
- Enar Jumaniyazova
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Anna Aghajanyan
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Sergey Kurevlev
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Leyla Tskhovrebova
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Andrey Makarov
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
- Histology Department, Pirogov Russian National Research Medical University, Ministry of Healthcare of the Russian Federation, 117997 Moscow, Russia
| | - Konstantin Gordon
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
- A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation (A. Tsyb MRRC), 4, Korolev Street, 249036 Obninsk, Russia
| | - Anastasiya Lokhonina
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Timur Fatkhudinov
- Institute of Medicine, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
- Avtsyn Research Institute of Human Morphology of Petrovsky National Research Centre of Surgery, 3 Tsyurupy Street, 117418 Moscow, Russia
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Chen Q, Liu B, Zeng Y, Hwang JW, Dai N, Corrêa I, Estecio M, Zhang X, Santos MA, Chen T, Cheng X. GSK-3484862 targets DNMT1 for degradation in cells. NAR Cancer 2023; 5:zcad022. [PMID: 37206360 PMCID: PMC10189803 DOI: 10.1093/narcan/zcad022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/21/2023] Open
Abstract
Maintenance of genomic methylation patterns at DNA replication forks by DNMT1 is the key to faithful mitotic inheritance. DNMT1 is often overexpressed in cancer cells and the DNA hypomethylating agents azacytidine and decitabine are currently used in the treatment of hematologic malignancies. However, the toxicity of these cytidine analogs and their ineffectiveness in treating solid tumors have limited wider clinical use. GSK-3484862 is a newly-developed, dicyanopyridine containing, non-nucleoside DNMT1-selective inhibitor with low cellular toxicity. Here, we show that GSK-3484862 targets DNMT1 for protein degradation in both cancer cell lines and murine embryonic stem cells (mESCs). DNMT1 depletion was rapid, taking effect within hours following GSK-3484862 treatment, leading to global hypomethylation. Inhibitor-induced DNMT1 degradation was proteasome-dependent, with no discernible loss of DNMT1 mRNA. In mESCs, GSK-3484862-induced Dnmt1 degradation requires the Dnmt1 accessory factor Uhrf1 and its E3 ubiquitin ligase activity. We also show that Dnmt1 depletion and DNA hypomethylation induced by the compound are reversible after its removal. Together, these results indicate that this DNMT1-selective degrader/inhibitor will be a valuable tool for dissecting coordinated events linking DNA methylation to gene expression and identifying downstream effectors that ultimately regulate cellular response to altered DNA methylation patterns in a tissue/cell-specific manner.
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Affiliation(s)
- Qin Chen
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
| | - Bigang Liu
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
| | - Yang Zeng
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
- Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX77030, USA
| | - Jee Won Hwang
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
| | - Nan Dai
- New England Biolabs, Inc, Ipswich, MA 01938, USA
| | | | - Marcos R Estecio
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
| | - Xing Zhang
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
| | - Margarida A Santos
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
- Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX77030, USA
| | - Taiping Chen
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
- Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX77030, USA
| | - Xiaodong Cheng
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX77030, USA
- Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX77030, USA
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5
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Targeting emerging cancer hallmarks by transition metal complexes: Epigenetic reprogramming and epitherapies. Part II. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Zwergel C, Schnekenburger M, Sarno F, Battistelli C, Manara MC, Stazi G, Mazzone R, Fioravanti R, Gros C, Ausseil F, Florean C, Nebbioso A, Strippoli R, Ushijima T, Scotlandi K, Tripodi M, Arimondo PB, Altucci L, Diederich M, Mai A, Valente S. Correction: Identification of a novel quinoline-based DNA demethylating compound highly potent in cancer cells. Clin Epigenetics 2022; 14:119. [PMID: 36171618 PMCID: PMC9520938 DOI: 10.1186/s13148-022-01339-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Clemens Zwergel
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Michael Schnekenburger
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg, 9 rue Edward Steichen, L-2540, Luxembourg City, Luxembourg
| | - Federica Sarno
- Department of Medicine of Precision, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138, Naples, Italy
| | - Cecilia Battistelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Maria Cristina Manara
- Laboratory of Experimental Oncology, IRCCS - Istituto Ortopedico Rizzoli, via di Barbiano, 1/10, 40136, Bologna, Italy
| | - Giulia Stazi
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Roberta Mazzone
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Rossella Fioravanti
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Christina Gros
- Center for High-Throughput Chemical Biology, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Frédéric Ausseil
- Pierre Fabre Laboratories, 3 Avenue Hubert Curien, 31100, Toulouse, France
| | - Cristina Florean
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg, 9 rue Edward Steichen, L-2540, Luxembourg City, Luxembourg
| | - Angela Nebbioso
- Department of Medicine of Precision, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138, Naples, Italy
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.,National Institute for Infectious Diseases L. Spallanzani, IRRCCS, Via Portuense, 292, 00149, Rome, Italy
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Katia Scotlandi
- Laboratory of Experimental Oncology, IRCCS - Istituto Ortopedico Rizzoli, via di Barbiano, 1/10, 40136, Bologna, Italy
| | - Marco Tripodi
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.,National Institute for Infectious Diseases L. Spallanzani, IRRCCS, Via Portuense, 292, 00149, Rome, Italy.,Pasteur Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Paola B Arimondo
- Epigenetic Chemical Biology, Institut Pasteur, CNRS UMR3523, 28 rue du Docteur Roux, 75724, Paris, France
| | - Lucia Altucci
- Department of Medicine of Precision, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138, Naples, Italy
| | - Marc Diederich
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Korea
| | - Antonello Mai
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy. .,Pasteur Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy.
| | - Sergio Valente
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy.
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Xu N, Liu J, Li X. Lupus nephritis: The regulatory interplay between epigenetic and MicroRNAs. Front Physiol 2022; 13:925416. [PMID: 36187762 PMCID: PMC9523357 DOI: 10.3389/fphys.2022.925416] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
MicroRNAs (miRNAs) are endogenous, small, non-coding RNA molecules that act as epigenetic modifiers to regulate the protein levels of target messenger RNAs without altering their genetic sequences. The highly complex role of miRNAs in the epigenetics of lupus nephritis (LN) is increasingly being recognized. DNA methylation and histone modifications are focal points of epigenetic research. miRNAs play a critical role in renal development and physiology, and dysregulation may result in abnormal renal cell proliferation, inflammation, and fibrosis of the kidneys in LN. However, epigenetic and miRNA-mediated regulation are not mutually exclusive. Further research has established a link between miRNA expression and epigenetic regulation in various disorders, including LN. This review summarizes the most recent evidence regarding the interaction between miRNAs and epigenetics in LN and highlights potential therapeutic and diagnostic targets.
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Affiliation(s)
- Ning Xu
- School of Clinical Medicine, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Jie Liu
- School of Clinical Medicine, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Xiangling Li
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Xiangling Li,
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8
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DNA Methyltransferases: From Evolution to Clinical Applications. Int J Mol Sci 2022; 23:ijms23168994. [PMID: 36012258 PMCID: PMC9409253 DOI: 10.3390/ijms23168994] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 11/18/2022] Open
Abstract
DNA methylation is an epigenetic mark that living beings have used in different environments. The MTases family catalyzes DNA methylation. This process is conserved from archaea to eukaryotes, from fertilization to every stage of development, and from the early stages of cancer to metastasis. The family of DNMTs has been classified into DNMT1, DNMT2, and DNMT3. Each DNMT has been duplicated or deleted, having consequences on DNMT structure and cellular function, resulting in a conserved evolutionary reaction of DNA methylation. DNMTs are conserved in the five kingdoms of life: bacteria, protists, fungi, plants, and animals. The importance of DNMTs in whether methylate or not has a historical adaptation that in mammals has been discovered in complex regulatory mechanisms to develop another padlock to genomic insurance stability. The regulatory mechanisms that control DNMTs expression are involved in a diversity of cell phenotypes and are associated with pathologies transcription deregulation. This work focused on DNA methyltransferases, their biology, functions, and new inhibitory mechanisms reported. We also discuss different approaches to inhibit DNMTs, the use of non-coding RNAs and nucleoside chemical compounds in recent studies, and their importance in biological, clinical, and industry research.
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9
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Horton JR, Pathuri S, Wong K, Ren R, Rueda L, Fosbenner DT, Heerding DA, McCabe MT, Pappalardi MB, Zhang X, King BW, Cheng X. Structural characterization of dicyanopyridine containing DNMT1-selective, non-nucleoside inhibitors. Structure 2022; 30:793-802.e5. [PMID: 35395178 PMCID: PMC9177618 DOI: 10.1016/j.str.2022.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/24/2022] [Accepted: 03/11/2022] [Indexed: 12/21/2022]
Abstract
DNMT1 maintains the parental DNA methylation pattern on newly replicated hemimethylated DNA. The failure of this maintenance process causes aberrant DNA methylation that affects transcription and contributes to the development and progression of cancers such as acute myeloid leukemia. Here, we structurally characterized a set of newly discovered DNMT1-selective, reversible, non-nucleoside inhibitors that bear a core 3,5-dicyanopyridine moiety, as exemplified by GSK3735967, to better understand their mechanism of inhibition. All of the dicyanopydridine-containing inhibitors examined intercalate into the hemimethylated DNA between two CpG base pairs through the DNA minor groove, resulting in conformational movement of the DNMT1 active-site loop. In addition, GSK3735967 introduces two new binding sites, where it interacts with and stabilizes the displaced DNMT1 active-site loop and it occupies an open aromatic cage in which trimethylated histone H4 lysine 20 is expected to bind. Our work represents a substantial step in generating potent, selective, and non-nucleoside inhibitors of DNMT1.
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Affiliation(s)
- John R Horton
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sarath Pathuri
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kristen Wong
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - Ren Ren
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lourdes Rueda
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - David T Fosbenner
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - Dirk A Heerding
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - Michael T McCabe
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - Melissa B Pappalardi
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - Xing Zhang
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Bryan W King
- Cancer Epigenetics Research Unit, Oncology, GlaxoSmithKline, Collegeville, PA 19426, USA.
| | - Xiaodong Cheng
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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10
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Van de Walle T, Cools L, Mangelinckx S, D'hooghe M. Recent contributions of quinolines to antimalarial and anticancer drug discovery research. Eur J Med Chem 2021; 226:113865. [PMID: 34655985 DOI: 10.1016/j.ejmech.2021.113865] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 09/01/2021] [Accepted: 09/20/2021] [Indexed: 12/28/2022]
Abstract
Quinoline, a privileged scaffold in medicinal chemistry, has always been associated with a multitude of biological activities. Especially in antimalarial and anticancer research, quinoline played (and still plays) a central role, giving rise to the development of an array of quinoline-containing pharmaceuticals in these therapeutic areas. However, both diseases still affect millions of people every year, pointing to the necessity of new therapies. Quinolines have a long-standing history as antimalarial agents, but established quinoline-containing antimalarial drugs are now facing widespread resistance of the Plasmodium parasite. Nevertheless, as evidenced by a massive number of recent literature contributions, they are still of great value for future developments in this field. On the other hand, the number of currently approved anticancer drugs containing a quinoline scaffold are limited, but a strong increase and interest in quinoline compounds as potential anticancer agents can be seen in the last few years. In this review, a literature overview of recent contributions made by quinoline-containing compounds as potent antimalarial or anticancer agents is provided, covering publications between 2018 and 2020.
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Affiliation(s)
- Tim Van de Walle
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Lore Cools
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Sven Mangelinckx
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Matthias D'hooghe
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium.
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11
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Luo M, Yang X, Chen HN, Nice EC, Huang C. Drug resistance in colorectal cancer: An epigenetic overview. Biochim Biophys Acta Rev Cancer 2021; 1876:188623. [PMID: 34481016 DOI: 10.1016/j.bbcan.2021.188623] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 02/08/2023]
Abstract
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide. Despite significant progress that has been made in therapies against CRC over the past decades, drug resistance is still a major limitation in CRC treatment. Numerous investigations have unequivocally shown that epigenetic regulation plays an important role in CRC drug resistance because of the high rate of epigenetic alterations in multiple genes during cancer development or drug treatment. Furthermore, the reversibility of epigenetic alterations provides novel therapeutic strategies to overcome drug resistance using small molecules, which can target non-coding RNAs or reverse histone modification and DNA methylation. In this review, we discuss epigenetic regulation in CRC drug resistance and the possible role of preventing or reversing CRC drug resistance using epigenetic therapy in CRC treatment.
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Affiliation(s)
- Maochao Luo
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315020, China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Xingyue Yang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315020, China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Hai-Ning Chen
- Department of Gastrointestinal Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Edouard C Nice
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia.
| | - Canhua Huang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315020, China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu 610041, China.
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12
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Hu C, Liu X, Zeng Y, Liu J, Wu F. DNA methyltransferase inhibitors combination therapy for the treatment of solid tumor: mechanism and clinical application. Clin Epigenetics 2021; 13:166. [PMID: 34452630 PMCID: PMC8394595 DOI: 10.1186/s13148-021-01154-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 08/16/2021] [Indexed: 12/15/2022] Open
Abstract
DNA methylation, an epigenetic modification, regulates gene transcription and maintains genome stability. DNA methyltransferase (DNMT) inhibitors can activate silenced genes at low doses and cause cytotoxicity at high doses. The ability of DNMT inhibitors to reverse epimutations is the basis of their use in novel strategies for cancer therapy. In this review, we examined the literature on DNA methyltransferase inhibitors. We summarized the mechanisms underlying combination therapy using DNMT inhibitors and clinical trials based on combining hypomethylation agents with other chemotherapeutic drugs. We also discussed the efficacy of such compounds as antitumor agents, the need to optimize treatment schedules and the regimens for maximal biologic effectiveness. Notably, the combination of DNMT inhibitors and chemotherapy and/or immune checkpoint inhibitors may provide helpful insights into the development of efficient therapeutic approaches.
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Affiliation(s)
- Chunhong Hu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Hunan Cancer Mega-Data Intelligent Application and Engineering Research Centre, Changsha, 410011, Hunan, China
| | - Xiaohan Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Yue Zeng
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Junqi Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Fang Wu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China. .,Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China. .,Hunan Cancer Mega-Data Intelligent Application and Engineering Research Centre, Changsha, 410011, Hunan, China.
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13
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Garbo S, Zwergel C, Battistelli C. m6A RNA methylation and beyond - The epigenetic machinery and potential treatment options. Drug Discov Today 2021; 26:2559-2574. [PMID: 34126238 DOI: 10.1016/j.drudis.2021.06.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/02/2021] [Accepted: 06/08/2021] [Indexed: 12/14/2022]
Abstract
m6A is emerging as one of the most important RNA modifications because of its involvement in pathological and physiological events. Here, we provide an overview of this epitranscriptomic modification, beginning with a description of the molecular players involved and continuing with a focus on the role of m6A in the maintenance of stemness, induction of the epithelial to mesenchymal transition (EMT), and tumor progression. Finally, we discuss the state of the art regarding the design and validation of inhibitors of m6A writers or erasers to provide a background for future investigations and for the development of specific therapeutics.
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Affiliation(s)
- Sabrina Garbo
- Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Department of Molecular Medicine, Department of Excellence 2018-2022, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy; Oncohaematology Department, IRCCS Ospedale Pediatrico Bambino Gesù, Viale di San Paolo 15, 00146 Rome, Italy
| | - Clemens Zwergel
- Department of Drug Chemistry and Technologies, Department of Excellence 2018-2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Cecilia Battistelli
- Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Department of Molecular Medicine, Department of Excellence 2018-2022, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy.
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14
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Wang Y, Xie Q, Tan H, Liao M, Zhu S, Zheng LL, Huang H, Liu B. Targeting cancer epigenetic pathways with small-molecule compounds: Therapeutic efficacy and combination therapies. Pharmacol Res 2021; 173:105702. [PMID: 34102228 DOI: 10.1016/j.phrs.2021.105702] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/07/2021] [Accepted: 05/29/2021] [Indexed: 02/08/2023]
Abstract
Epigenetics mainly refers to covalent modifications to DNA or histones without affecting genomes, which ultimately lead to phenotypic changes in cells or organisms. Given the abundance of regulatory targets in epigenetic pathways and their pivotal roles in tumorigenesis and drug resistance, the development of epigenetic drugs holds a great promise for the current cancer therapy. However, lack of potent, selective, and clinically tractable small-molecule compounds makes the strategy to target cancer epigenetic pathways still challenging. Therefore, this review focuses on epigenetic pathways, small molecule inhibitors targeting DNA methyltransferase (DNMT) and small molecule inhibitors targeting histone modification (the main regulatory targets are histone acetyltransferases (HAT), histone deacetylases (HDACs) and histone methyltransferases (HMTS)), as well as the combination strategies of the existing epigenetic therapeutic drugs and more new therapies to improve the efficacy, which will shed light on a new clue on discovery of more small-molecule drugs targeting cancer epigenetic pathways as promising strategies in the future.
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Affiliation(s)
- Yi Wang
- Health Management Center, Sichuan Provincial People' Hospital, University of Electronic Science and Technology of China, Chengdu 610072, PR China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, PR China
| | - Qiang Xie
- Department of Stomatology, Sichuan Provincial People' Hospital, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Huidan Tan
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, PR China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Minru Liao
- Department of Stomatology, Sichuan Provincial People' Hospital, University of Electronic Science and Technology of China, Chengdu 610072, PR China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Shiou Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Ling-Li Zheng
- Department of Pharmacy, The First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Rd, Xindu Region, Chengdu 610500, PR China.
| | - Haixia Huang
- Oral & Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou, 646000, PR China; Department of Prosthodontics, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, PR China.
| | - Bo Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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15
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Lauria A, La Monica G, Bono A, Martorana A. Quinoline anticancer agents active on DNA and DNA-interacting proteins: From classical to emerging therapeutic targets. Eur J Med Chem 2021; 220:113555. [PMID: 34052677 DOI: 10.1016/j.ejmech.2021.113555] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/25/2022]
Abstract
Quinoline is one of the most important and versatile nitrogen heterocycles embodied in several biologically active molecules. Within the numerous quinolines developed as antiproliferative agents, this review is focused on compounds interfering with DNA structure or with proteins/enzymes involved in the regulation of double helix functional processes. In this light, a special focus is given to the quinoline compounds, acting with classical/well-known mechanisms of action (DNA intercalators or Topoisomerase inhibitors). In particular, the quinoline drugs amsacrine and camptothecin (CPT) have been studied as key lead compounds for the development of new agents with improved PK and tolerability properties. Moreover, notable attention has been paid to the quinoline molecules, which are able to interfere with emerging targets involved in cancer progression, as G-quadruplexes or the epigenetic ones (e.g.: histone deacetylase, DNA and histones methyltransferase). The antiproliferative and the enzymatic inhibition data of the reviewed compounds have been analyzed. Furthermore, concerning the SAR (structure-activity relationship) aspects, the most recurrent ligand-protein interactions are summarized, underling the structural requirements for each kind of mechanism of action.
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Affiliation(s)
- Antonino Lauria
- Dipartimento di Scienze e Technologie Biologiche Chimiche e Farmaceutiche "STEBICEF" - University of Palermo, Via Archirafi - 32, 90123, Palermo, Italy
| | - Gabriele La Monica
- Dipartimento di Scienze e Technologie Biologiche Chimiche e Farmaceutiche "STEBICEF" - University of Palermo, Via Archirafi - 32, 90123, Palermo, Italy
| | - Alessia Bono
- Dipartimento di Scienze e Technologie Biologiche Chimiche e Farmaceutiche "STEBICEF" - University of Palermo, Via Archirafi - 32, 90123, Palermo, Italy
| | - Annamaria Martorana
- Dipartimento di Scienze e Technologie Biologiche Chimiche e Farmaceutiche "STEBICEF" - University of Palermo, Via Archirafi - 32, 90123, Palermo, Italy.
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16
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Epigenetic-Based Therapy-A Prospective Chance for Medulloblastoma Patients' Recovery. Int J Mol Sci 2021; 22:ijms22094925. [PMID: 34066495 PMCID: PMC8124462 DOI: 10.3390/ijms22094925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 12/25/2022] Open
Abstract
Medulloblastoma (MB) is one of the most frequent and malignant brain tumors in children. The prognosis depends on the advancement of the disease and the patient's age. Current therapies, which include surgery, chemotherapy, and irradiation, despite being quite effective, cause significant side effects that influence the central nervous system's function and cause neurocognitive deficits. Therefore, they substantially lower the quality of life, which is especially severe in a developing organism. Thus, there is a need for new therapies that are less toxic and even more effective. Recently, knowledge about the epigenetic mechanisms that are responsible for medulloblastoma development has increased. Epigenetics is a phenomenon that influences gene expression but can be easily modified by external factors. The best known epigenetic mechanisms are histone modifications, DNA methylation, or noncoding RNAs actions. Epigenetic mechanisms comprehensively explain the complex phenomena of carcinogenesis. At the same time, they seem to be a potential key to treating medulloblastoma with fewer complications than past therapies. This review presents the currently known epigenetic mechanisms that are involved in medulloblastoma pathogenesis and the potential therapies that use epigenetic traits to cure medulloblastoma while maintaining a good quality of life and ensuring a higher median overall survival rate.
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17
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Zhu L, Li X, Yuan Y, Dong C, Yang M. APC Promoter Methylation in Gastrointestinal Cancer. Front Oncol 2021; 11:653222. [PMID: 33968756 PMCID: PMC8103321 DOI: 10.3389/fonc.2021.653222] [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: 01/14/2021] [Accepted: 03/30/2021] [Indexed: 12/30/2022] Open
Abstract
The adenomatous polyposis coli (APC) gene, known as tumor suppressor gene, has the two promoters 1A and 1B. Researches on APC have usually focused on its loss-of-function variants causing familial adenomatous polyposis. Hypermethylation, however, which is one of the key epigenetic alterations of the APC CpG sequence, is also associated with carcinogenesis in various cancers. Accumulating studies have successively explored the role of APC hypermethylation in gastrointestinal (GI) tumors, such as in esophageal, colorectal, gastric, pancreatic, and hepatic cancer. In sporadic colorectal cancer, the hypermethylation of CpG island in APC is even considered as one of the primary causative factors. In this review, we systematically summarized the distribution of APC gene methylation in various GI tumors, and attempted to provide an improved general understanding of DNA methylation in GI tumors. In addition, we included a robust overview of demethylating agents available for both basic and clinical researches. Finally, we elaborated our findings and perspectives on the overall situation of APC gene methylation in GI tumors, aiming to explore the potential research directions and clinical values.
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Affiliation(s)
- Lila Zhu
- Department of Medical Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinyu Li
- Department of Medical Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ying Yuan
- Department of Medical Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Caixia Dong
- Department of Medical Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Mengyuan Yang
- Department of Medical Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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18
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RIPK2 is an unfavorable prognosis marker and a potential therapeutic target in human kidney renal clear cell carcinoma. Aging (Albany NY) 2021; 13:10450-10467. [PMID: 33790054 PMCID: PMC8064209 DOI: 10.18632/aging.202808] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 02/25/2021] [Indexed: 02/05/2023]
Abstract
Receptor Interacting Serine/Threonine Kinase 2 (RIPK2) is located on chromosome 8q21 and encodes a protein containing a C-terminal caspase activation and recruitment domain (CARD), which is a component of signaling complexes in both the innate and adaptive immune pathways. To estimate the value of RIPK2 in evaluating the prognosis and guiding the targeted therapy for patients with kidney renal clear cell carcinoma (KIRC), we analyzed total 526 KIRC samples from The Cancer Genome Atlas (TCGA) database. Our result showed that RIPK2 was upregulated in KIRC tumor samples compared with normal samples. Cox regression was performed to calculate the hazard ratio of RIPK2 expression as an unfavorable prognosis feature for overall survival. Moreover, RIPK2 expression was positively correlated to the high-risk clinical stage, and metastasis features. The upregulation of RIPK2 was strongly correlated with various immune signaling pathway dysregulations as well as immune phenotypes changes in KIRC patient’s cohort. In addition, inhibition of RIPK2 activity by either shRNA-mediated knockdown or inhibitor significantly reduced kidney cancer cell viability, trans-migration in vitro, and impaired tumor growth in vivo. In conclusion, elevated RIPK2 expression indicates a worse prognosis for KIRC patients and could serve as a potential prognostic biomarker and therapeutic target in kidney cancer.
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19
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de Nigris F, Ruosi C, Napoli C. Clinical efficiency of epigenetic drugs therapy in bone malignancies. Bone 2021; 143:115605. [PMID: 32829036 DOI: 10.1016/j.bone.2020.115605] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/07/2020] [Accepted: 08/15/2020] [Indexed: 12/17/2022]
Abstract
A great interest in the scientific community is focused on the improvement of the cure rate in patients with bone malignancies that have a poor response to the first line of therapies. Novel treatments currently include epigenetic compounds or molecules targeting epigenetic-sensitive pathways. Here, we offer an exhaustive review of such agents in these clinical settings. Carefully designed preclinical studies selected several epigenetic drugs, including inhibitors of DNA methyltransferase (DNMTIs), such as Decitabine, histone deacetylase classes I-II (HDACIs), as Entinostat, Belinostat, lysine-specific histone demethylase (LSD1), as INCB059872 or FT-2102 (Olutasidenib), inhibitors of isocitrate dehydrogenases, and enhancer of zeste homolog 2 (EZH2), such as EPZ6438 (Tazemetostat) To enhance the therapeutic effect, the prevalent approach in phase II trial is the association of these epigenetic drug inhibitors, with targeted therapy or immune checkpoint blockade. Optimization of drug dosing and regimens of Phase II trials may improve the clinical efficiency of such novel therapeutic approaches against these devastating cancers.
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Affiliation(s)
- Filomena de Nigris
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Carlo Ruosi
- Department of Public Health, Federico II University, 80132 Naples, Italy
| | - Claudio Napoli
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy; IRCCS SDN, 80134 Naples, IT, Italy
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20
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Novel Approaches to Epigenetic Therapies: From Drug Combinations to Epigenetic Editing. Genes (Basel) 2021; 12:genes12020208. [PMID: 33572577 PMCID: PMC7911730 DOI: 10.3390/genes12020208] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/24/2021] [Accepted: 01/28/2021] [Indexed: 12/11/2022] Open
Abstract
Cancer development involves both genetic and epigenetic alterations. Aberrant epigenetic modifications are reversible, allowing excellent opportunities for therapeutic intervention. Nowadays, several epigenetic drugs are used worldwide to treat, e.g., myelodysplastic syndromes and leukemias. However, overcoming resistance and widening the therapeutic profiles are the most important challenges faced by traditional epigenetic drugs. Recently, novel approaches to epigenetic therapies have been proposed. Next-generation epigenetic drugs, with longer half-life and better bioavailability, are being developed and tested. Since epigenetic phenomena are interdependent, treatment modalities include co-administration of two different epigenetic drugs. In order to sensitize cancer cells to chemotherapy, epigenetic drugs are administered prior to chemotherapy, or both epigenetic drug and chemotherapy are used together to achieve synergistic effects and maximize treatment efficacy. The combinations of epigenetic drug with immunotherapy are being tested, because they have proved to enhance antitumor immune responses. The next approach involves targeting the metabolic causes of epigenetic changes, i.e., enzymes which, when mutated, produce oncometabolites. Finally, epigenome editing makes it possible to modify individual chromatin marks at a defined region with unprecedented specificity and efficiency. This review summarizes the above attempts in fulfilling the promise of epigenetic drugs in the effective cancer treatment.
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21
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Tojo T, Kubo Y, Kondo T, Yuasa M. Inverted Positioning of DNMT1 Inhibitor in the Active Site of DNMT1 Caused by Hydrophobicity/Hydrophilicity of the Terminal Structure. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Li S, Li P, Liu W, Shang J, Qiu S, Li X, Liu W, Shi H, Zhou M, Liu H. Danhong Injection Alleviates Cardiac Fibrosis via Preventing the Hypermethylation of Rasal1 and Rassf1 in TAC Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3158108. [PMID: 33456666 PMCID: PMC7787771 DOI: 10.1155/2020/3158108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/02/2020] [Accepted: 12/06/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Danhong injection (DHI) is a Chinese patent drug used for relieving cardiovascular diseases. Recent studies have suggested that DNA methylation plays a pivotal role in the maintenance of cardiac fibrosis (CF) in cardiovascular diseases. This study was aimed at identifying the effect and the underlying mechanism of DHI on CF, especially the DNA methylation. METHODS A CF murine model was established by thoracic aortic constriction (TAC). A 28-day daily treatment with or without DHI via intraperitoneal injection was carried out immediately following TAC surgery. The changes in cardiac function, pathology, and fibrosis following TAC were measured by echocardiography and immunostaining. We used methyl-seq analysis to assess the DNA methylation changes in whole genes and identified the methylation changes of two Ras signaling-related genes in TAC mice, including Ras protein activator like-1 (Rasal1) and Ras-association domain family 1 (Rassf1). Next, the methylation status and expression levels of Rasal1 and Rassf1 genes were consolidated by bisulfite sequencing, quantitative reverse transcription polymerase chain reaction (RT-qPCR), and Western blotting, respectively. To determine the underlying molecular mechanism, the expressions of DNA methyltransferases (DNMTs), Tet methylcytosine dioxygenase 3 (TET3), fibrosis-related genes, and the activity of Ras/ERK were measured by RT-qPCR and Western blotting. RESULTS DHI treatment alleviated CF and significantly improved cardiac function on day 28 of TAC. The methyl-seq analysis identified 42,606 differential methylated sites (DMSs), including 19,618 hypermethylated DMSs and 22,988 hypomethylated DMSs between TAC and sham-operated mice. The enrichment analysis of these DMSs suggested that the methylated regulation of Ras signal transduction and focal adhesion-related genes would be involved in the TAC-induced CF development. The results of bisulfite sequencing revealed that the TAC-induced methylation affected the CpG site in both of Rasal1 and Rassf1 genes, and DHI treatment remarkably downregulated the promoter methylation of Rasal1 and Rassf1 in CF hearts. Furthermore, DHI treatment upregulated the expressions of Rasal1 and Rassf1, inhibited the hyperactivity of Ras/ERK, and decreased the expressions of fibrosis-related genes. Notably, we found that DHI treatment markedly downregulated the expression of DNMT3B in CF hearts, while it did not affect the expressions of DNMT1, DNMT3A, and TET3. CONCLUSION Aberrant DNA methylation of Rasal1 and Rassf1 genes was involved in the CF development. DHI treatment alleviated CF, prevented the hypermethylation of Rasal1 and Rassf1, and downregulated DNMT3B expression in CF hearts.
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Affiliation(s)
- Sinai Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
- Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
- Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China
| | - Weihong Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
- Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China
| | - Juju Shang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Shenglei Qiu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Xiang Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Wei Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Haoyue Shi
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Mingxue Zhou
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
- Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China
| | - Hongxu Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
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23
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Ali W, Benedetti R, Handzlik J, Zwergel C, Battistelli C. The innovative potential of selenium-containing agents for fighting cancer and viral infections. Drug Discov Today 2020; 26:256-263. [PMID: 33164821 DOI: 10.1016/j.drudis.2020.10.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/17/2020] [Accepted: 10/19/2020] [Indexed: 02/07/2023]
Abstract
Selenium-containing compounds have emerged as a potentially promising treatment for viral infections and tumor development and dissemination. Selenium per se is often considered as a toxic element with little or no beneficial effects, but considerable advances have been made in the understanding of the complex biology, chemistry and drug delivery of this element, especially when it is included in bioactive molecules. Here, we summarize and critically discuss recent findings in the field of selenium-based applications for the treatment of cancer and viral infections.
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Affiliation(s)
- Wesam Ali
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland; Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbruecken, Germany
| | - Rosaria Benedetti
- Department of Precision Medicine, Luigi Vanvitelli University of Campania, Via L. De Crecchio 7, 80138 Naples, Italy
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Clemens Zwergel
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbruecken, Germany; Department of Precision Medicine, Luigi Vanvitelli University of Campania, Via L. De Crecchio 7, 80138 Naples, Italy; Department of Drug Chemistry and Technologies, Sapienza University of Rome, Department of Excellence 2018-2022, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Cecilia Battistelli
- Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Department of Molecular Medicine, Department of Excellence 2018-2022, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
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24
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DNA Methylation as a Therapeutic Target for Bladder Cancer. Cells 2020; 9:cells9081850. [PMID: 32784599 PMCID: PMC7463638 DOI: 10.3390/cells9081850] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023] Open
Abstract
Bladder cancer (BC) is the tenth most frequent cancer worldwide and is associated with high mortality when diagnosed in its most aggressive form, which is not reverted by the current treatment options. Thus, the development of new therapeutic strategies, either alternative or complementary to the current ones, is of major importance. The disruption of normal epigenetic mechanisms, namely, DNA methylation, is a known early event in cancer development. Consequently, DNA methyltransferase (DNMT) inhibitors constitute a promising therapeutic target for the treatment of BC. Although these inhibitors, mainly nucleoside analogues such as 5-azacytidine (5-aza) and decitabine (DAC), cause re-expression of tumor suppressor genes, inhibition of tumor cell growth, and increased apoptosis in BC experimental models and clinical trials, they also show important drawbacks that prevent their use as a valuable option for the treatment of BC. However, their combination with chemotherapy and/or immune-checkpoint inhibitors could aid in their implementation in the clinical practice. Here, we provide a comprehensive review of the studies exploring the effects of DNA methylation inhibition using DNMTs inhibitors in BC, from in vitro and in vivo studies to clinical trials.
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25
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Zhang J, Yang C, Wu C, Cui W, Wang L. DNA Methyltransferases in Cancer: Biology, Paradox, Aberrations, and Targeted Therapy. Cancers (Basel) 2020; 12:cancers12082123. [PMID: 32751889 PMCID: PMC7465608 DOI: 10.3390/cancers12082123] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 02/07/2023] Open
Abstract
DNA methyltransferases are an essential class of modifiers in epigenetics. In mammals, DNMT1, DNMT3A and DNMT3B participate in DNA methylation to regulate normal biological functions, such as embryo development, cell differentiation and gene transcription. Aberrant functions of DNMTs are frequently associated with tumorigenesis. DNMT aberrations usually affect tumor-related factors, such as hypermethylated suppressor genes and genomic instability, which increase the malignancy of tumors, worsen the prognosis for patients, and greatly increase the difficulty of cancer therapy. However, the impact of DNMTs on tumors is still controversial, and therapeutic approaches targeting DNMTs are still under exploration. Here, we summarize the biological functions and paradoxes associated with DNMTs and we discuss some emerging strategies for targeting DNMTs in tumors, which may provide novel ideas for cancer therapy.
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Affiliation(s)
- Jiayu Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China; (J.Z.); (C.Y.); (C.W.)
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Cheng Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China; (J.Z.); (C.Y.); (C.W.)
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Chunfu Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China; (J.Z.); (C.Y.); (C.W.)
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Wei Cui
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China; (J.Z.); (C.Y.); (C.W.)
- Correspondence: (W.C.); (L.W.)
| | - Lihui Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China; (J.Z.); (C.Y.); (C.W.)
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi 117004, China
- Correspondence: (W.C.); (L.W.)
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Genomics and Therapeutic Vulnerabilities of Primary Bone Tumors. Cells 2020; 9:cells9040968. [PMID: 32295254 PMCID: PMC7227002 DOI: 10.3390/cells9040968] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/17/2022] Open
Abstract
Osteosarcoma, Ewing sarcoma and chondrosarcoma are rare diseases but the most common primary tumors of bone. The genes directly involved in the sarcomagenesis, tumor progression and treatment responsiveness are not completely defined for these tumors, and the powerful discovery of genetic analysis is highly warranted in the view of improving the therapy and cure of patients. The review summarizes recent advances concerning the molecular and genetic background of these three neoplasms and, of their most common variants, highlights the putative therapeutic targets and the clinical trials that are presently active, and notes the fundamental issues that remain unanswered. In the era of personalized medicine, the rarity of sarcomas may not be the major obstacle, provided that each patient is studied extensively according to a road map that combines emerging genomic and functional approaches toward the selection of novel therapeutic strategies.
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Zwergel C, Fioravanti R, Stazi G, Sarno F, Battistelli C, Romanelli A, Nebbioso A, Mendes E, Paulo A, Strippoli R, Tripodi M, Pechalrieu D, Arimondo PB, De Luca T, Del Bufalo D, Trisciuoglio D, Altucci L, Valente S, Mai A. Novel Quinoline Compounds Active in Cancer Cells through Coupled DNA Methyltransferase Inhibition and Degradation. Cancers (Basel) 2020; 12:E447. [PMID: 32075099 PMCID: PMC7073229 DOI: 10.3390/cancers12020447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/31/2020] [Accepted: 02/12/2020] [Indexed: 01/20/2023] Open
Abstract
DNA methyltransferases (DNMTs) play a relevant role in epigenetic control of cancer cell survival and proliferation. Since only two DNMT inhibitors (azacitidine and decitabine) have been approved to date for the treatment of hematological malignancies, the development of novel potent and specific inhibitors is urgent. Here we describe the design, synthesis, and biological evaluation of a new series of compounds acting at the same time as DNMTs (mainly DNMT3A) inhibitors and degraders. Tested against leukemic and solid cancer cell lines, 2a-c and 4a-c (the last only for leukemias) displayed up to submicromolar antiproliferative activities. In HCT116 cells, such compounds induced EGFP gene expression in a promoter demethylation assay, confirming their demethylating activity in cells. In the same cell line, 2b and 4c chosen as representative samples induced DNMT1 and -3A protein degradation, suggesting for these compounds a double mechanism of DNMT3A inhibition and DNMT protein degradation.
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Affiliation(s)
- Clemens Zwergel
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
- Department of Precision Medicine, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138 Naples, Italy; (F.S.); (A.N.); (L.A.)
| | - Rossella Fioravanti
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
| | - Giulia Stazi
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
| | - Federica Sarno
- Department of Precision Medicine, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138 Naples, Italy; (F.S.); (A.N.); (L.A.)
| | - Cecilia Battistelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy (R.S.); (M.T.)
| | - Annalisa Romanelli
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
| | - Angela Nebbioso
- Department of Precision Medicine, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138 Naples, Italy; (F.S.); (A.N.); (L.A.)
| | - Eduarda Mendes
- Research Institute for Medicines, Medicinal Chemistry Group, Faculty of Pharmacy, Universidade de Lisboa, 1649 003 Lisbon, Portugal; (E.M.); (A.P.)
| | - Alexandra Paulo
- Research Institute for Medicines, Medicinal Chemistry Group, Faculty of Pharmacy, Universidade de Lisboa, 1649 003 Lisbon, Portugal; (E.M.); (A.P.)
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy (R.S.); (M.T.)
- National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, 00149 Rome, Italy
| | - Marco Tripodi
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy (R.S.); (M.T.)
- National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, 00149 Rome, Italy
- Istituto Pasteur- Fondazione Cenci Bolognetti, Department of Molecular Medicine, Sapienza Università di Roma, 00185 Rome, Italy
| | - Dany Pechalrieu
- ETaC CNRS FRE3600, LMBE, 118 route de Narbonne, 31062 Toulouse, France; (D.P.); (P.B.A.)
| | - Paola B. Arimondo
- ETaC CNRS FRE3600, LMBE, 118 route de Narbonne, 31062 Toulouse, France; (D.P.); (P.B.A.)
- Epigenetic Chemical Biology, Institute Pasteur, CNRS UMR3523, 28 rue du Docteur Roux, 75724 Paris, France
| | - Teresa De Luca
- Preclinical Models and New Therapeutic Agents Unit, IRCCS-Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy; (T.D.L.); (D.D.B.)
| | - Donatella Del Bufalo
- Preclinical Models and New Therapeutic Agents Unit, IRCCS-Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy; (T.D.L.); (D.D.B.)
| | - Daniela Trisciuoglio
- Preclinical Models and New Therapeutic Agents Unit, IRCCS-Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy; (T.D.L.); (D.D.B.)
- Institute of Molecular Biology and Pathology, National Research Council (CNR), Via Degli Apuli 4, 00185 Rome, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138 Naples, Italy; (F.S.); (A.N.); (L.A.)
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy; (C.Z.); (R.F.); (G.S.); (A.R.)
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Coronado-Posada N, Olivero-Verbel J. In silico evaluation of pesticides as potential modulators of human DNA methyltransferases. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2019; 30:865-878. [PMID: 31595789 DOI: 10.1080/1062936x.2019.1666165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
DNA methylations are carried out by DNA methyltransferases (DNMTs) that are key enzymes during gene expression. Many chemicals, including pesticides, have shown modulation of epigenetic functions by inhibiting DNMTs. In this work, human DNMTs were evaluated as a potential target for pesticides through virtual screening of 1038 pesticides on DNMT1 (3SWR) and DNMT3A (2QRV). Molecular docking calculations for DNMTs-pesticide complexes were performed using AutoDock Vina. Binding-affinity values and contact patterns were employed as selection criteria of pesticides as virtual hits for DNMTs. The best three DNMT-pesticides complexes selected according to their high absolute affinity values (kcal/mol), for both DNMT1 and DNMT3A, were flocoumafen (-12.5; -9.9), brodifacoum (-12.4; -8.4) and difenacoum (-12.1; -8.7). These chemicals belong to second-generation rodenticides. The most frequent predicted interacting residues for DNMT1-pesticide complexes were Trp1170A, Phe1145A, Asn1578A, Arg1574A and Pro1225A; whereas for DNMT3A those were Arg271B, Lys740A, and Glu303B. These results suggest that rodenticides used for pest control are potential DNMT ligands and therefore, may modulate DNA methylations. This finding has important environmental and clinical implications, as epigenetic pathways are critical in many biochemical processes leading to diseases.
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Affiliation(s)
- N Coronado-Posada
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Cartagena, Colombia
| | - J Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Cartagena, Colombia
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