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Shen L, Wang B, Wang SP, Ji SK, Fu MJ, Wang SW, Hou WQ, Dai XJ, Liu HM. Combination Therapy and Dual-Target Inhibitors Based on LSD1: New Emerging Tools in Cancer Therapy. J Med Chem 2024; 67:922-951. [PMID: 38214982 DOI: 10.1021/acs.jmedchem.3c02133] [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: 01/14/2024]
Abstract
Lysine specific demethylase 1 (LSD1), a transcriptional modulator that represses or activates target gene expression, is overexpressed in many cancer and causes imbalance in the expression of normal gene networks. Over two decades, numerous LSD1 inhibitors have been reported, especially some of which have entered clinical trials, including eight irreversible inhibitors (TCP, ORY-1001, GSK-2879552, INCB059872, IMG-7289, ORY-2001, TAK-418, and LH-1802) and two reversible inhibitors (CC-90011 and SP-2577). Most clinical LSD1 inhibitors demonstrated enhanced efficacy in combination with other agents. LSD1 multitarget inhibitors have also been reported, exampled by clinical dual LSD1/histone deacetylases (HDACs) inhibitors 4SC-202 and JBI-802. Herein, we present a comprehensive overview of the combination of LSD1 inhibitors with various antitumor agents, as well as LSD1 multitarget inhibitors. Additionally, the challenges and future research directionsare also discussed, and we hope this review will provide new insight into the development of LSD1-targeted anticancer agents.
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Affiliation(s)
- Liang Shen
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Bo Wang
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Shao-Peng Wang
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Shi-Kun Ji
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Meng-Jie Fu
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Shu-Wu Wang
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Wen-Qing Hou
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Xing-Jie Dai
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
| | - Hong-Min Liu
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, China
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2
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Barman S, Bardhan I, Padhan J, Sudhamalla B. Integrated virtual screening and MD simulation approaches toward discovering potential inhibitors for targeting BRPF1 bromodomain in hepatocellular carcinoma. J Mol Graph Model 2024; 126:108642. [PMID: 37797430 DOI: 10.1016/j.jmgm.2023.108642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive and life-threatening cancers. Although multiple treatment options are available, the prognosis of HCC patients is poor due to metastasis and drug resistance. Hence, discovering novel targets is essential for better therapeutic development for HCC. In this study, we used the cancer genome atlas (TCGA) dataset to analyze the expression of bromodomain-containing proteins in HCC, as bromodomains are emerging attractive therapeutic targets. Our analysis identified BRPF1 as the most highly upregulated gene in HCC among the 43 bromodomain-containing genes. Upregulation of BRPF1 was significantly associated with poorer patient survival. Therefore, targeting BRPF1 may be an approach for HCC treatment. Previously, several potential inhibitors of BRPF1 bromodomain have been discovered. However, due to the limited clinical success of the current inhibitors, we aim to search for new inhibitors with high affinity and specificity for the BRPF1 bromodomain. In this study, we utilized high-throughput virtual screening methods to screen synthetic and natural compound databases against the BRPF1 bromodomain. In addition, we used machine learning-based QSAR modeling to predict the IC50 values of the selected BRPF1 bromodomain inhibitors. Extensive MD simulations were used to calculate the binding free energies of BRPF1 bromodomain and inhibitor complexes. Using this approach, we identified four lead scaffolds with a similar or better binding affinity towards the BRPF1 bromodomain than the previously reported inhibitors. Overall, this study discovered some promising compounds that have the potential to act as potent BRPF1 bromodomain inhibitors.
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Affiliation(s)
- Soumen Barman
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India
| | - Ishita Bardhan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India
| | - Jyotirmayee Padhan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India
| | - Babu Sudhamalla
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India.
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3
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Horai Y, Suda N, Uchihashi S, Katakuse M, Shigeno T, Hirano T, Takahara J, Fujita T, Mukoyama Y, Haga Y. Discovery of a potent, orally available tricyclic derivative as a novel BRD4 inhibitor for melanoma. Bioorg Med Chem 2023; 93:117461. [PMID: 37659219 DOI: 10.1016/j.bmc.2023.117461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/04/2023]
Abstract
The epigenetic regulation of the protein bromodomain-containing protein 4 (BRD4) has emerged as a compelling target for cancer treatment. In this study, we outline the discovery of a novel BRD4 inhibitor for melanoma therapy. Our initial finding was that benzimidazole derivative 1, sourced from our library, was a powerful BRD4 inhibitor. However, it exhibited a poor pharmacokinetic (PK) profile. To address this, we conducted a scaffold-hopping procedure with derivative 1, which resulted in the creation of benzimidazolinone derivative 5. This new derivative displayed an improved PK profile. To further enhance the BRD4 inhibitory activity, we attempted to introduce hydrogen bond acceptors. This indeed improved the activity, but at the cost of decreased membrane permeability. Our search for a potent inhibitor with desirable permeability led to the development of tricyclic 18. This compound demonstrated powerful inhibitory activity and a favorable PK profile. More significantly, tricyclic 18 showed antitumor efficacy in a mouse melanoma xenograft model, suggesting that it holds potential as a therapeutic agent for melanoma treatment.
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Affiliation(s)
- Yuhei Horai
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan.
| | - Naoki Suda
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
| | | | - Mayako Katakuse
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
| | - Tomomi Shigeno
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
| | | | | | - Tomoyuki Fujita
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
| | - Yohei Mukoyama
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
| | - Yuji Haga
- Research Department, Maruho Co., Ltd., Kyoto 600-8815, Japan
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4
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Yellapu NK, Pei D, Nissen E, Thompson JA, Koestler DC. Comprehensive exploration of JQ1 and GSK2801 targets in breast cancer using network pharmacology and molecular modeling approaches. Comput Struct Biotechnol J 2023; 21:3224-3233. [PMID: 38213901 PMCID: PMC10781883 DOI: 10.1016/j.csbj.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 01/13/2024] Open
Abstract
JQ1 and GSK2801 are bromo domain inhibitors (BDI) known to exhibit enhanced anti-cancer activity when combined with other agents. However, the underlying molecular mechanisms behind such enhanced activity remain unclear. We used network-pharmacology approaches to understand the shared molecular mechanisms behind the enhanced activity of JQ1 and GSK2801 when used together to treat breast cancer (BC). The gene targets of JQ1 and GSK2801 were intersected with known BC-targets and their putative targets against BC were derived. The key genes were explored through gene-ontology-enrichment, Protein-Protein-Interaction (PPI) networking, survival analysis, and molecular modeling simulations. The genes, CTSB, MAPK14, MET, PSEN2 and STAT3, were found to be common targets for both drugs. In total, 49 biological processes, five molecular functions and 61 metabolic pathways were similarly enriched for JQ1 and GSK2801 BC targets among which several terms are related to cancer: IL-17, TNF and JAK-STAT signaling pathways. Survival analyses revealed that all five putative synergistic targets are significantly associated with survival in BC (log-rank p < 0.05). Molecular modeling studies showed stable binding of JQ1 and GSK2801 against their targets. In conclusion, this study explored and illuminated the possible molecular mechanisms behind the enhanced activity of JQ1 and GSK2801 against BC and suggests synergistic action through their similar BC-targets and gene-ontologies.
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Affiliation(s)
- Nanda Kumar Yellapu
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, Kansas City, KS, USA
| | - Dong Pei
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, Kansas City, KS, USA
| | - Emily Nissen
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, Kansas City, KS, USA
| | - Jeffrey A. Thompson
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, Kansas City, KS, USA
| | - Devin C. Koestler
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, Kansas City, KS, USA
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5
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Gao Y, Zhang J, Li J, Song S, Zhang S, Liu Q, Wang X, Zhao J, Xia C, Xiao Y, Liu T. Establishment of environment-sensitive probes targeting BRD3/BRD4 for imaging and therapy of tumor. Eur J Med Chem 2023; 257:115478. [PMID: 37269669 DOI: 10.1016/j.ejmech.2023.115478] [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: 03/07/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 06/05/2023]
Abstract
The BET (bromo and extra-terminal) family proteins are epigenetic readers and master transcription coactivators, which have attracted great interests as cancer therapeutic targets. However, there are few developed labeling toolkits that can be applied for the dynamic studies of BET family proteins in living cells and tissue slices. In order to label and study the distribution of the BET family proteins in tumor cells and tumor tissues, a novel series of environment-sensitive fluorescent probes (6a-6c) were designed and evaluated for their labeling properties. Interestingly, 6a is capable of identifying tumor tissue slices and making a distinction between the tumor and normal tissues. Moreover, it can localize to the nuclear bodies in tumor slices just like BRD3 antibody. In addition, it also played an anti-tumor role through the induction of apoptosis. All these features render 6a may compatible for immunofluorescent studies and future cancer diagnosis, and guide for the discovery of new anticancer drugs.
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Affiliation(s)
- Yuqi Gao
- College of Radiology, Shandong First Medical University, University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China; Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, Shandong, 250117, China
| | - Jie Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - JianJun Li
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Shubin Song
- Department of Breast Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Sitao Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Qiao Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Xu Wang
- Department of Biochemistry, Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jinbo Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Chengcai Xia
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Yuliang Xiao
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China.
| | - Tingting Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China.
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6
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Ali MM, Naz S, Ashraf S, Knapp S, Ul-Haq Z. Epigenetic modulation by targeting bromodomain containing protein 9 (BRD9): Its therapeutic potential and selective inhibition. Int J Biol Macromol 2023; 230:123428. [PMID: 36709803 DOI: 10.1016/j.ijbiomac.2023.123428] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023]
Abstract
The bromodomain-containing protein 9, a component of the SWI/SNF chromatin remodeling complex, functions as an 'epigenetic reader' selectively recognizing acetyl-lysine marks. It regulates chromatin structure and gene expression by recruitment of acetylated transcriptional regulators and by modulating the function of remodeling complexes. Recent data suggests that BRD9 plays an important role in regulating cellular growth and it has been suggested to drive progression of several malignant diseases such as cervical cancer, and acute myeloid leukemia. Its role in tumorigenesis suggests that selective BRD9 inhibitors may have therapeutic value in cancer therapy. Currently, there has been increasing interest in developing small molecules that can specifically target BRD9 or the closely related bromodomain protein BRD7. Available chemical probes will help to clarify biological functions of BRD9 and its potential for cancer therapy. Since the report of the first BRD9 inhibitor LP99 in 2015, numerous inhibitors have been developed. In this review, we summarized the biological roles of BRD9, structural details and the progress made in the development of BRD9 inhibitors.
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Affiliation(s)
- Maria Mushtaq Ali
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Sehrish Naz
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Sajda Ashraf
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan
| | - Stefan Knapp
- Institute for Pharmaceutical Chemistry, Goethe University Frankfurt, Max von Lauestrasse 9, 60438 Frankfurt, Germany; Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe University Frankfurt, Max von Lauestrasse 15, 60438 Frankfurt, Germany
| | - Zaheer Ul-Haq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan.
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7
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Recent Advances in the Applications of Small Molecules in the Treatment of Multiple Myeloma. Int J Mol Sci 2023; 24:ijms24032645. [PMID: 36768967 PMCID: PMC9917049 DOI: 10.3390/ijms24032645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/15/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Therapy for multiple myeloma (MM), a hematologic neoplasm of plasma cells, has undergone remarkable changes over the past 25 years. Small molecules (molecular weight of less than one kDa), together with newer immunotherapies that include monoclonal antibodies, antibody-drug conjugates, and most recently, chimeric antigen receptor (CAR) T-cells, have combined to double the disease's five-year survival rate to over 50% during the past few decades. Despite these advances, the disease is still considered incurable, and its treatment continues to pose substantial challenges, since therapeutic refractoriness and patient relapse are exceedingly common. This review focuses on the current pipeline, along with the contemporary roles and future prospects for small molecules in MM therapy. While small molecules offer prospective benefits in terms of oral bioavailability, cellular penetration, simplicity of preparation, and improved cost-benefit considerations, they also pose problems of toxicity due to off-target effects. Highlighted in the discussion are recent developments in the applications of alkylating agents, immunomodulators, proteasome inhibitors, apoptosis inducers, kinesin spindle protein inhibitors, blockers of nuclear transport, and drugs that affect various kinases involved in intracellular signaling pathways. Molecular and cellular targets are described for each class of agents in relation to their roles as drivers of MM.
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Wang Q, Li B, Zhang W, Li Z, Jiang B, Hou S, Ma S, Qin C. Lethal activity of BRD4 PROTAC degrader QCA570 against bladder cancer cells. Front Chem 2023; 11:1121724. [PMID: 36733715 PMCID: PMC9887192 DOI: 10.3389/fchem.2023.1121724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
Bladder cancer is the most common malignancy of the urinary system. Efforts to identify innovative and effective therapies for bladder cancer are urgently needed. Recent studies have identified the BRD4 protein as the critical factor in regulation of cell proliferation and apoptosis in bladder cancer, and it shows promising potential for pharmacologic treatment against bladder cancer. In this study, we have evaluated the biological function of QCA570, a novel BET degrader, on multiple bladder cancer cells and explore its underlying mechanisms. QCA570 potently induces degradation of BRD4 protein at nanomolar concentrations, with a DC50 of ∼ 1 nM. It decreases EZH2 and c-MYC levels by transcriptional suppression and protein degradation. Moreover, the degrader significantly induces cell apoptosis and cycle arrest and shows antiproliferation activity against bladder cancer cells. These findings support the potential efficacy of QCA570 on bladder cancer.
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Affiliation(s)
- Qiang Wang
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China,Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Baohu Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Wenkai Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Zhuoyue Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Bo Jiang
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China,*Correspondence: Bo Jiang, ; Sichuan Hou, ; Shumin Ma, ; Chong Qin,
| | - Sichuan Hou
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China,*Correspondence: Bo Jiang, ; Sichuan Hou, ; Shumin Ma, ; Chong Qin,
| | - Shumin Ma
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China,*Correspondence: Bo Jiang, ; Sichuan Hou, ; Shumin Ma, ; Chong Qin,
| | - Chong Qin
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China,*Correspondence: Bo Jiang, ; Sichuan Hou, ; Shumin Ma, ; Chong Qin,
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9
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Makki AA, Ibraheem W, Alzain AA. Cytosporone E analogues as BRD4 inhibitors for cancer treatment: molecular docking and molecular dynamic investigations. J Biomol Struct Dyn 2023; 41:12643-12653. [PMID: 36644887 DOI: 10.1080/07391102.2023.2167122] [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: 10/31/2022] [Accepted: 01/05/2023] [Indexed: 01/17/2023]
Abstract
Cancer is considered one of the worldwide life-threatening and leading causes of human mortality. In 2020, 19,292,789 cancer cases and 9,958,133 cancer deaths have been estimated worldwide. Therefore, efforts have been devoted to discover novel anticancer agents. Bromodomains have a vital role in the regulation of transcription. Many reports have shown that bromodomain-containing protein 4 (BRD4) is an important target for cancer therapeutics. In this study, several in silico approaches were utilized to discover new inhibitors against the BRD4 protein using the Schrodinger suite. A library of 27 cytosporone E derivatives was docked into the active site of the BRD4 protein. Docked ligands showed docking scores ranging between -11.289 to -3.992 Kcal/mol. Ligands 1-4 showed better binding affinities with docking scores ranging from -11.289 to -8.917 Kcal/mol compared to the reference ligand BI-2536 (-8.426 Kcal/mol). These ligands displayed favorable MM-GBSA free binding energy. Also, ligands 1-4 were subjected to molecular dynamics simulations for 100 ns to get insight into the ligand-binding stability. These compounds exhibited an average RMSD below 2.8 Å, indicating the stability of the compounds with BRD4 protein. Further, Moreover, ligands 1-3 displayed favorable AMDET properties (absorption, distribution, metabolism, excretion, and toxicity). These new compounds might be potential leads to combat cancer.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Alaa A Makki
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
| | - Walaa Ibraheem
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
| | - Abdulrahim A Alzain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
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10
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Zhang M, Li Y, Zhang Z, Zhang X, Wang W, Song X, Zhang D. BRD4 Protein as a Target for Lung Cancer and Hematological Cancer Therapy: A Review. Curr Drug Targets 2023; 24:1079-1092. [PMID: 37846578 DOI: 10.2174/0113894501269090231012090351] [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: 06/28/2023] [Revised: 08/30/2023] [Accepted: 09/15/2023] [Indexed: 10/18/2023]
Abstract
The BET protein family plays a crucial role in regulating the epigenetic landscape of the genome. Their role in regulating tumor-related gene expression and its impact on the survival of tumor cells is widely acknowledged. Among the BET family constituents, BRD4 is a significant protein. It is a bromodomain-containing protein located at the outer terminal that recognizes histones that have undergone acetylation. It is present in the promoter or enhancer region of the target gene and is responsible for initiating and sustaining the expression of genes associated with tumorigenesis. BRD4 expression is significantly elevated in various tumor types. Research has indicated that BRD4 plays a significant role in regulating various transcription factors and chromatin modification, as well as in repairing DNA damage and preserving telomere function, ultimately contributing to the survival of cancerous cells. The protein BRD4 has a significant impact on antitumor therapy, particularly in the management of lung cancer and hematological malignancies, and the promising potential of BRD4 inhibitors in the realm of cancer prevention and treatment is a topic of great interest. Therefore, BRD4 is considered a promising candidate for prophylaxis and therapy of neoplastic diseases. However, further research is required to fully comprehend the significance and indispensability of BRD4 in cancer and its potential as a therapeutic target.
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Affiliation(s)
- Mengmeng Zhang
- College of Humanities and Management, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Yingbo Li
- College of Humanities and Management, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Zilong Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Xin Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Wei Wang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Xiaomei Song
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
| | - Dongdong Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, P.R. China
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Rosochowicz MA, Lipowicz JM, Karwacka MI, Ostapowicz J, Cisek M, Mackiewicz AA, Czerwinska P. It Runs in the Bromodomain Family: Speckled Proteins (SP) Play a Role in the Antitumor Immune Response in Solid Tumors. Int J Mol Sci 2022; 24:ijms24010549. [PMID: 36614001 PMCID: PMC9820261 DOI: 10.3390/ijms24010549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
Cells and immune cells in the extracellular matrix: Depending on the tumor type and variety of TAAs (tumor-associated antigens), immune infiltrates are composed of many different subpopulations of immune cells. Epigenetic changes are also considered to be characteristic of cancer. Epigenetic factors taking part in the regulation of gene expression include the VII group of bromodomain proteins (BrD)-SP-family proteins. Here, we used transcriptomic data from the TCGA database, as well as immunological evidence from ESTIMATE, TIP, and TIMER2.0 databases for various solid tumor types and harnessed several publicly available bioinformatic tools (such as GSEA and GSCA) to demonstrate mechanisms and interactions between BrD proteins and immune infiltrates in cancer. We present a consistently positive correlation between the SP-family genes and immune score regardless of the tumor type. The SP-family proteins correlate positively with T cells' trafficking and infiltration into tumor. Our results also show an association between the high expression of SP family genes and enriched transcriptome profiles of inflammatory response and TNF-α signaling via NF-κβ. We also show that the SP-family proteins could be considered good predictors of high immune infiltration phenotypes.
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Affiliation(s)
- Monika Anna Rosochowicz
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Radiobiology Laboratory, Greater Poland Cancer Centre, 61-866 Poznan, Poland
- Department of Orthopedics and Traumatology, Poznan University of Medical Sciences, 61-545 Poznan, Poland
| | - Julia Maria Lipowicz
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Department of Histology and Embriology, Poznan University of Medical Sciences, 60-781 Poznan, Poland
| | - Marianna Iga Karwacka
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
| | - Julia Ostapowicz
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Radiobiology Laboratory, Greater Poland Cancer Centre, 61-866 Poznan, Poland
- Department of Electroradiology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
| | - Malgorzata Cisek
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
| | - Andrzej Adam Mackiewicz
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
- Correspondence: ; Tel.: +48-61-885-06-67; Fax: +48-61-852-85-02
| | - Patrycja Czerwinska
- Undergraduate Research Group “Biobase”, Poznan University of Medical Sciences, 61-701 Poznan, Poland
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
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12
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Tian H, Xu F, Zhao F, Pan N, Lu S, Jia X, Zhou Y. Early-immediate gene Egr1 is associated with TGFβ1 regulation of epigenetic reader Bromodomain-containing protein 4 via the canonical Smad3 signaling in hepatic stellate cells in vitro and in vivo. FASEB J 2022; 36:e22605. [PMID: 36250963 DOI: 10.1096/fj.202201263r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/17/2022] [Accepted: 09/29/2022] [Indexed: 12/31/2022]
Abstract
Upon chronic damage to the liver, multiple cytokines stimulate hepatic stellate cells (HSCs), causing the alterations of gene expression profiles and thus leading to HSC activation, a key step in liver fibrogenesis. Activated HSCs are the dominant contributors to liver fibrosis. Bromodomain containing protein 4 (BrD4), an important epigenetic reader, was demonstrated to concentrate on hundreds of enhancers associated with genes involved in multiple profibrotic pathways, thereby directing HSC activation and the fibrotic responses. The present studies were designed to examine the effect of transforming growth factor beta-1 (TGFβ1), the most potent pro-fibrotic cytokine, on BrD4 expression in HSCs and, if so, elucidated the underlying mechanisms in vitro and in vivo. The experiments employed the heterogeneous TGFβ1 knockout (TGFβ1+/- ) mice, gene knockdown in vivo, and a model of thioacetamide (TAA)-induced liver injury. The results revealed that TGFβ1 enhanced BrD4 expression in HSCs, which was mediated, at least, by Smad3 signaling and early-immediate gene Egr1 (early growth response-1). TGFβ1-induced Smad3 signaling increased Egr1 expression and promoted Egr1 binding to BrD4 promoter at a site around -111 bp, promoting BrD4 expression. Egr1 knockdown reduced BrD4 expression in HSCs in a mouse model of TAA-induced liver injury and lessened liver fibrosis. Double fluorescence staining demonstrated a strong increase in BrD4 expression in activated HSCs in fibrotic areas of the human livers, paralleling the upregulation of p-Smad3 and Egr1. This research suggested novel molecular events underlying the roles of the master pro-fibrotic cytokine TGFβ1 in HSC activation and liver fibrogenesis.
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Affiliation(s)
- Haimeng Tian
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Feifan Xu
- Department of Clinical Laboratory, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Nantong, China
| | - Feifei Zhao
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Nachuan Pan
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Sidan Lu
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Xin Jia
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Yajun Zhou
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
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13
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Chen H, Liu Z, Zheng L, Wang R, Shi L. BET inhibitors: an updated patent review (2018-2021). Expert Opin Ther Pat 2022; 32:953-968. [PMID: 35982031 DOI: 10.1080/13543776.2022.2115354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Bromodomain and extraterminal (BET) proteins are epigenetic readers that regulate gene transcription and cell growth by binding to acetylated lysine resides on histones. They are involved in many physiological processes and pathological conditions such as cancer, inflammation, and metabolic diseases. Blockade of BET proteins has become an encouraging approach for the treatment of these human diseases, especially cancer. To date, a number of potent and specific BET inhibitors have been discovered and many of them have entered clinical trials. AREAS COVERED This review aims at providing an overview of molecular mechanisms of BET inhibitors and highlighting the research advancements published in recent patent literatures between 2018 and 2021. Web of Science, PubMed, SciFinder, WIPO, EPO, USPTO and CNIPA databases were used for searching the literature and patents for BET inhibitors. EXPERT OPINION In recent years, an increasing number of structurally diverse BET inhibitors have been identified, including pan BET inhibitors, BD1 or BD2 selective BET inhibitors, bivalent BET inhibitors, kinase and BET dual inhibitors and BET-PROTACs. Despite of many challenges, BET inhibitors have high potential in the treatment of cancer and other diseases and the development of next-generation BET inhibitors could be promising.
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Affiliation(s)
- Huanhuan Chen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Zhenling Liu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Lili Zheng
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Rongrong Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Lei Shi
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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14
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Pang Y, Bai G, Zhao J, Wei X, Li R, Li J, Hu S, Peng L, Liu P, Mao H. The BRD4 inhibitor JQ1 suppresses tumor growth by reducing c-Myc expression in endometrial cancer. J Transl Med 2022; 20:336. [PMID: 35902869 PMCID: PMC9331486 DOI: 10.1186/s12967-022-03545-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/17/2022] [Indexed: 12/20/2022] Open
Abstract
Background Endometrial cancer (EC) is the most common gynecological malignancy in developed countries. Efficacy of the bromodomain 4 (BRD4) inhibitor JQ1 has been reported for the treatment of various human cancers, but its potential impact on EC remains unclear. We therefore aimed to elucidate the function of BRD4 and the effects of JQ1 in EC in vivo and in vitro. Methods The mRNA expression of BRD4 was evaluated using datasets from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). BRD4 protein expression in EC tissues was measured using immunohistochemistry (IHC) assays. The effects of JQ1 on EC were determined by using MTT and colony formation assays, flow cytometry and xenograft mouse models. The underlying mechanism was also examined by western blot and small interfering RNA (siRNA) transfection. Results BRD4 was overexpressed in EC tissues, and the level of BRD4 expression was strongly related to poor prognosis. The BRD4-specific inhibitor JQ1 suppressed cell proliferation and colony formation and triggered cell apoptosis, cell cycle arrest, and changes in the expression of proteins in related signaling pathways. Moreover, JQ1 decreased the protein expression of BRD4 and c-Myc, and knockdown of BRD4 or c-Myc reduced the viability of EC cells. Intraperitoneal administration of JQ1 (50 mg/kg) significantly suppressed the tumorigenicity of EC cells in a xenograft mouse model. Conclusion Our results demonstrate that BRD4 is a potential marker of EC and that the BRD4 inhibitor JQ1 is a promising chemotherapeutic agent for the treatment of EC. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03545-x.
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Affiliation(s)
- Yingxin Pang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China.,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Gaigai Bai
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China.,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jing Zhao
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China
| | - Xuan Wei
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China.,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Rui Li
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China.,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jie Li
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shunxue Hu
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Lu Peng
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China.,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Peishu Liu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China. .,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China. .,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
| | - Hongluan Mao
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, No.107 Wenhua West Road, Jinan, 250012, Shandong, China. .,Key Laboratory of Gynecology Oncology of Shandong Province, Qilu Hospital of Shandong University, Jinan, Shandong, China. .,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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15
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Acharya N, Singh KP. Recent advances in the molecular basis of chemotherapy resistance and potential application of epigenetic therapeutics in chemorefractory renal cell carcinoma. WIREs Mech Dis 2022; 14:e1575. [DOI: 10.1002/wsbm.1575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 06/11/2022] [Accepted: 06/22/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Narayan Acharya
- Department of Environmental Toxicology, The Institute of Environmental and Human Health (TIEHH) Texas Tech University Lubbock Texas USA
| | - Kamaleshwar P. Singh
- Department of Environmental Toxicology, The Institute of Environmental and Human Health (TIEHH) Texas Tech University Lubbock Texas USA
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16
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Xu YY, Ren ZL, Liu XL, Zhang GM, Huang SS, Shi WH, Ye LX, Luo X, Liu SW, Li YL, Yu L. BAP1 loss augments sensitivity to BET inhibitors in cancer cells. Acta Pharmacol Sin 2022; 43:1803-1815. [PMID: 34737422 PMCID: PMC9253001 DOI: 10.1038/s41401-021-00783-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022] Open
Abstract
The tumor suppressor gene BAP1 encodes a widely expressed deubiquitinase for histone H2A. Both hereditary and acquired mutations are associated with multiple cancer types, including cutaneous melanoma (CM), uveal melanoma (UM), and clear cell renal cell carcinoma (ccRCC). However, there is no personalized therapy for BAP1-mutant cancers. Here, we describe an epigenetic drug library screening to identify small molecules that exert selective cytotoxicity against BAP1 knockout CM cells over their isogenic parental cells. Hit characterization reveals that BAP1 loss renders cells more vulnerable to bromodomain and extraterminal (BET) inhibitor-induced transcriptional alterations, G1/G0 cell cycle arrest and apoptosis. The association of BAP1 loss with sensitivity to BET inhibitors is observed in multiple BAP1-deficient cancer cell lines generated by gene editing or derived from patient tumors as well as immunodeficient xenograft and immunocompetent allograft murine models. We demonstrate that BAP1 deubiquitinase activity reduces sensitivity to BET inhibitors. Concordantly, ectopic expression of RING1A or RING1B (H2AK119 E3 ubiquitin ligases) enhances sensitivity to BET inhibitors. The mechanistic study shows that the BET inhibitor OTX015 exerts a more potent suppressive effect on the transcription of various proliferation-related genes, especially MYC, in BAP1 knockout cells than in their isogenic parental cells, primarily by targeting BRD4. Furthermore, ectopic expression of Myc rescues the BET inhibitor-sensitizing effect induced by BAP1 loss. Our study reveals new approaches to specifically suppress BAP1-deficient cancers, including CM, UM, and ccRCC.
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Affiliation(s)
- Yu-Yan Xu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhong-Lu Ren
- College of Medical Information Engineering, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Medicinal Information and Real World Engineering Technology Center of Universities, Guangzhou, 510006, China
| | - Xiao-Lian Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Gui-Ming Zhang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Si-Si Huang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wen-Hui Shi
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lin-Xuan Ye
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Xin Luo
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Shu-Wen Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yi-Lei Li
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Le Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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17
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Luo M, Wu Q, Yang Y, Sun L, Huan X, Tian C, Xiong B, Miao Z, Wang Y, Chen D. Design and development of a novel series of oral bivalent BET inhibitors with potent anticancer activities. Eur J Med Chem 2022; 239:114519. [PMID: 35714446 DOI: 10.1016/j.ejmech.2022.114519] [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: 04/13/2022] [Revised: 05/18/2022] [Accepted: 06/04/2022] [Indexed: 11/29/2022]
Abstract
Bromodomain and extraterminal domain (BET) subfamily members are intriguing targets for cancer treatment. Most of the reported BET inhibitors were monovalent inhibitors. Recently, some bivalent inhibitors were disclosed, which bound to two bromodomains simultaneously. They had good activities, however, most of them also showed unsatisfactory pharmacokinetic properties, which were caused by long chain linkers. Based on our previous work on monovalent BRD4 inhibitors, we designed and synthesized a series of novel bivalent inhibitors with short and hydrophilic linkers. These compounds exhibited better activities than the corresponding monovalent inhibitors and good pharmacokinetic properties. Compound 21 showed excellent in vitro activities. And it also demonstrated potent in vivo antitumor efficacy under oral administration and was well tolerated in in vivo tests.
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Affiliation(s)
- Menglan Luo
- Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Road, Shanghai, 200444, China; Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Qian Wu
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Yueyue Yang
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Lin Sun
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Xiajuan Huan
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Changqing Tian
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Bing Xiong
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Zehong Miao
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China
| | - Yingqing Wang
- State Key Laboratory of Drug Research,Cancer Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China.
| | - Danqi Chen
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, NO.19A Yuquan Road, Beijing, 100049, China.
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18
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Yellapu NK, Ly T, Sardiu ME, Pei D, Welch DR, Thompson JA, Koestler DC. Synergistic anti-proliferative activity of JQ1 and GSK2801 in triple-negative breast cancer. BMC Cancer 2022; 22:627. [PMID: 35672711 PMCID: PMC9173973 DOI: 10.1186/s12885-022-09690-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) constitutes 10-20% of breast cancers and is challenging to treat due to a lack of effective targeted therapies. Previous studies in TNBC cell lines showed in vitro growth inhibition when JQ1 or GSK2801 were administered alone, and enhanced activity when co-administered. Given their respective mechanisms of actions, we hypothesized the combinatorial effect could be due to the target genes affected. Hence the target genes were characterized for their expression in the TNBC cell lines to prove the combinatorial effect of JQ1 and GSK2801. METHODS RNASeq data sets of TNBC cell lines (MDA-MB-231, HCC-1806 and SUM-159) were analyzed to identify the differentially expressed genes in single and combined treatments. The topmost downregulated genes were characterized for their downregulated expression in the TNBC cell lines treated with JQ1 and GSK2801 under different dose concentrations and combinations. The optimal lethal doses were determined by cytotoxicity assays. The inhibitory activity of the drugs was further characterized by molecular modelling studies. RESULTS Global expression profiling of TNBC cell lines using RNASeq revealed different expression patterns when JQ1 and GSK2801 were co-administered. Functional enrichment analyses identified several metabolic pathways (i.e., systemic lupus erythematosus, PI3K-Akt, TNF, JAK-STAT, IL-17, MAPK, Rap1 and signaling pathways) enriched with upregulated and downregulated genes when combined JQ1 and GSK2801 treatment was administered. RNASeq identified downregulation of PTPRC, MUC19, RNA5-8S5, KCNB1, RMRP, KISS1 and TAGLN (validated by RT-qPCR) and upregulation of GPR146, SCARA5, HIST2H4A, CDRT4, AQP3, MSH5-SAPCD1, SENP3-EIF4A1, CTAGE4 and RNASEK-C17orf49 when cells received both drugs. In addition to differential gene regulation, molecular modelling predicted binding of JQ1 and GSK2801 with PTPRC, MUC19, KCNB1, TAGLN and KISS1 proteins, adding another mechanism by which JQ1 and GSK2801 could elicit changes in metabolism and proliferation. CONCLUSION JQ1-GSK2801 synergistically inhibits proliferation and results in selective gene regulation. Besides suggesting that combinatorial use could be useful therapeutics for the treatment of TNBC, the findings provide a glimpse into potential mechanisms of action for this combination therapy approach.
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Affiliation(s)
- Nanda Kumar Yellapu
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, KS, Kansas City, USA
- The University of Kansas Cancer Center, Kansas City, KS, USA
| | - Thuc Ly
- The University of Kansas Cancer Center, Kansas City, KS, USA
- Department of Cancer Biology, University of Kansas, Medical Center, KS, Kansas City, USA
| | - Mihaela E Sardiu
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, KS, Kansas City, USA
- The University of Kansas Cancer Center, Kansas City, KS, USA
| | - Dong Pei
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, KS, Kansas City, USA
- The University of Kansas Cancer Center, Kansas City, KS, USA
| | - Danny R Welch
- The University of Kansas Cancer Center, Kansas City, KS, USA
- Department of Cancer Biology, University of Kansas, Medical Center, KS, Kansas City, USA
- Departments of Molecular & Integrative Physiology and Internal Medicine, University of Kansas, Medical Center, KS, Kansas City, USA
| | - Jeffery A Thompson
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, KS, Kansas City, USA.
- The University of Kansas Cancer Center, Kansas City, KS, USA.
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas, Medical Center, KS, Kansas City, USA.
- The University of Kansas Cancer Center, Kansas City, KS, USA.
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19
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Tontsch-Grunt U, Traexler PE, Baum A, Musa H, Marzin K, Wang S, Trapani F, Engelhardt H, Solca F. Therapeutic impact of BET inhibitor BI 894999 treatment: backtranslation from the clinic. Br J Cancer 2022; 127:577-586. [PMID: 35444289 PMCID: PMC9346113 DOI: 10.1038/s41416-022-01815-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/24/2022] [Accepted: 03/31/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND BET inhibitors have been tested in several clinical trials where, despite encouraging preclinical results, substantial clinical benefit in monotherapy remains limited. This work illustrates the translational challenges and reports new data around the novel BET inhibitor, BI 894999. At clinically achievable concentrations, mechanistic studies were carried out to study pathway modulation and rational drug combinations. METHODS BRD-NUT fusions are oncogenic drivers in NUT carcinoma (NC). The effects of BI 894999 on proliferation, chromatin binding and pathway modulation were studied in NC in vitro. These studies were complemented by efficacy studies either as a single agent or in combination with the clinical p300/CBP inhibitor CCS1477. RESULTS Based on the modelling of preclinical and clinical data, we proposed and implemented a new clinical scheduling regimen. This led to plasma levels sufficient to fully dislodge BRD-NUT from chromatin and to sustained and pronounced pharmacodynamic (PD) modulation of HEXIM1 and HIST2H2BF. Platelet counts in patient blood samples were improved compared to previous schedules. Rational combination studies of BI 894999 performed at clinically meaningful concentrations led to tumour regressions in all NC xenograft models tested. CONCLUSIONS BI 894999 holds significant potential as a combination drug and CCS1477 p300/CBP inhibitor is a promising partner for future clinical trials.
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Affiliation(s)
| | | | - Anke Baum
- Boehringer Ingelheim RCV GmbH & Co KG, A-1120, Vienna, Austria
| | - Hanny Musa
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Kristell Marzin
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Shaonan Wang
- Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany
| | | | | | - Flavio Solca
- Boehringer Ingelheim RCV GmbH & Co KG, A-1120, Vienna, Austria
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20
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Li C, Zhang S, Li S, Feng Y, Fan QH. Ruthenium-catalyzed enantioselective hydrogenation of quinoxalinones and quinazolinones. Org Chem Front 2022. [DOI: 10.1039/d1qo01598b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient Ru-catalyzed asymmetric hydrogenation of quinoxalinone and quinazolinone derivatives has been developed, providing a facile access to chiral dihydroquinoxalinones and dihydroquinazolinones with excellent enantioselectivities.
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Affiliation(s)
- Chenghao Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shuxin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shan Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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21
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Akawa OB, Subair TI, Omolabi KF, Okunlola FO, Soliman MES. Mechanistic Insights into the Selective Dual BET and PLK1 Inhibitory Activity of a Novel Benzamide Compound in Castration-Resistant Prostrate Cancer. Chem Biodivers 2021; 18:e2100519. [PMID: 34729902 DOI: 10.1002/cbdv.202100519] [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: 06/30/2021] [Accepted: 11/01/2021] [Indexed: 11/11/2022]
Abstract
Though multifactorial, BET and PLK1 proteins have been found to be key players in the oncogenic process leading to castration-resistant prostate cancer through regulation of AR and MYC-mediated transcription. Hence, dual inhibition of these proteins appears to be an auspicious approach for CRPC therapy. WNY0824 has been reported to exhibit nanomolar range inhibition as well as significant anti-proliferative activity on AR-positive CRPC cells in vitro. However, structural, and mechanistic events associated with its dual inhibitory and anti-proliferative mechanisms remain unclear. Utilizing integrative computer-assisted atomistic techniques, analyses revealed that the dual-inhibitory activity of WNY0824 against BRD4 and PLK1 proteins is mediated by conserved residues present in the binding cavities of both proteins which are shown to elicit various strong intermolecular interactions and thus favour binding affinity. Also, binding orientation of the ligand at the protein binding cavities allowed for important hydrophobic interactions which resulted in high binding free energy of -42.50 kcal/mol and -51.64 kcal/mol towards BRD4 and PLK1, respectively. While van der Waals interactions are very important to ligand binding in BRD4-WNY complex, electrostatic interactions are pertinent to PLK1-WNY complex. Intriguingly, WNY0824 triggered conformational alterations in both proteins through increased structural instability, decreased structural compactness and mitigation in exposure of residues to solvent surface area. Consequently, critical interactions peculiar to the oncogenic activities of BRD4 and PLK1 were inhibited, a phenomenon that results in an antagonism of CRPC progression. The mechanistic insights presented in this report would further assist in the structure-based design of improved inhibitors useful in CRPC therapy.
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Affiliation(s)
- Oluwole B Akawa
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, Afe Babalola University, Ado Ekiti, 360001, Nigeria
| | - Temitayo I Subair
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Kehinde F Omolabi
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Felix O Okunlola
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
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22
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Wang Q, Shao X, Leung ELH, Chen Y, Yao X. Selectively targeting individual bromodomain: Drug discovery and molecular mechanisms. Pharmacol Res 2021; 172:105804. [PMID: 34450309 DOI: 10.1016/j.phrs.2021.105804] [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: 05/21/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/21/2022]
Abstract
Bromodomain-containing proteins include bromodomain and extra-terminal (BET) and non-BET families. Due to the conserved bromodomain (BD) module between BD-containing proteins, and especially BETs with each member having two BDs (BD1 and BD2), the high degree of structural similarity makes BD-selective inhibitors much difficult to be designed. However, increasing evidences emphasized that individual BDs had distinct functions and different cellular phenotypes after pharmacological inhibition, and selectively targeting one of the BDs could result in a different efficacy and tolerability profile. This review is to summarize the pioneering progress of BD-selective inhibitors targeting BET and non-BET proteins, focusing on their structural features, biological activity, therapeutic application and experimental/theoretical mechanisms. The present proteolysis targeting chimeras (PROTAC) degraders targeting BDs, and clinical status of BD-selective inhibitors were also analyzed, providing a new insight into future direction of bromodomain-selective drug discovery.
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Affiliation(s)
- Qianqian Wang
- Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
| | - Xiaomin Shao
- Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
| | - Elaine Lai Han Leung
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau(SAR) 999078, China
| | - Yingqing Chen
- Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China.
| | - Xiaojun Yao
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau(SAR) 999078, China.
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23
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Chuang K, Wang S, Hsu S, Wang L. Impact of bromodomain-containing protein 4 (BRD4) and intestine-specific homeobox (ISX) expression on the prognosis of patients with hepatocellular carcinoma' for better clarity. Cancer Med 2021; 10:5545-5556. [PMID: 34173348 PMCID: PMC8366091 DOI: 10.1002/cam4.4094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/26/2021] [Accepted: 06/05/2021] [Indexed: 12/18/2022] Open
Abstract
Epigenetic regulation is important for cancer tumor metastasis and progression, including lung and liver cancer. However, the mechanism of epigenetic regulation in liver cancer leaves much to be discussed. According to a previous study, p300/CBP-associated factor (PCAF) mediated epithelial-mesenchymal transition (EMT) and promotes cancer metastasis by recruiting intestine-specific homeobox (ISX) and bromodomain-containing protein 4 (BRD4) in lung cancer. To figure out whether the three genes are also expressed in patients with hepatocellular carcinoma (HCC) or not, and their correlation with patients' outcome, BRD4, PCAF, and ISX messenger RNA (mRNA) expression levels in 377 patients with HCC were investigated using quantitative polymerase chain reaction and confocal fluorescence imaging. The correlation of the gene expression (PCAF, ISX, and BRD4) in liver cancer is also being investigated. Here, we show that the mRNA expression of PCAF, BRD4, and ISX in 377 paired specimens from patients with HCC, and the adjacent normal tissues exhibited a tumor-specific expression pattern, highly correlated with disease pathogenesis, patient survival time, progression stage, and poor prognosis. The results show that ISX and BRD4 can potentially be a target for improving the survival rate.
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Affiliation(s)
- Kai‐Ting Chuang
- Graduate Institute of MedicineCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
- School of Medicine, College of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
| | - Shen‐Nien Wang
- Graduate Institute of MedicineCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
- Division of General and Digestive SurgeryDepartment of SurgeryKaohsiung Medical University HospitalKaohsiungTaiwan
- Department of SurgeryCollege of MedicineKaohsiung Medical University HospitalKaohsiungTaiwan
- School of Medicine, College of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
| | - Shih‐Hsien Hsu
- Graduate Institute of MedicineCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
- Department of Medical ResearchKaohsiung Medical University HospitalKaohsiung Medical UniversityKaohsiungTaiwan
| | - Li‐Ting Wang
- Department of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Center of Applied GenomicsKaohsiung Medical UniversityKaohsiungTaiwan
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24
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Massafra V, Tundo S, Dietzig A, Ducret A, Jost C, Klein C, Kontermann RE, Knoetgen H, Steegmaier M, Romagnani A, Nagel YA. Proteolysis-Targeting Chimeras Enhance T Cell Bispecific Antibody-Driven T Cell Activation and Effector Function through Increased MHC Class I Antigen Presentation in Cancer Cells. THE JOURNAL OF IMMUNOLOGY 2021; 207:493-504. [PMID: 34215653 DOI: 10.4049/jimmunol.2000252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/11/2021] [Indexed: 11/19/2022]
Abstract
The availability of Ags on the surface of tumor cells is crucial for the efficacy of cancer immunotherapeutic approaches using large molecules, such as T cell bispecific Abs (TCBs). Tumor Ags are processed through intracellular proteasomal protein degradation and are displayed as peptides on MHC class I (MHC I). Ag recognition through TCRs on the surface of CD8+ T cells can elicit a tumor-selective immune response. In this article, we show that proteolysis-targeting chimeras (PROTACs) that target bromo- and extraterminal domain proteins increase the abundance of the corresponding target-derived peptide Ags on MHC I in both liquid and solid tumor-derived human cell lines. This increase depends on the engagement of the E3 ligase to bromo- and extraterminal domain protein. Similarly, targeting of a doxycycline-inducible Wilms tumor 1 (WT1)-FKBP12F36V fusion protein, by a mutant-selective FKBP12F36V degrader, increases the presentation of WT1 Ags in human breast cancer cells. T cell-mediated response directed against cancer cells was tested on treatment with a TCR-like TCB, which was able to bridge human T cells to a WT1 peptide displayed on MHC I. FKBP12F36V degrader treatment increased the expression of early and late activation markers (CD69, CD25) in T cells; the secretion of granzyme β, IFN-γ, and TNF-α; and cancer cell killing in a tumor-T cell coculture model. This study supports harnessing targeted protein degradation in tumor cells, for modulation of T cell effector function, by investigating for the first time, to our knowledge, the potential of combining a degrader and a TCB in a cancer immunotherapy setting.
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Affiliation(s)
- Vittoria Massafra
- Molecular Targeted Therapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Sofia Tundo
- Molecular Targeted Therapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Aline Dietzig
- Molecular Targeted Therapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Axel Ducret
- Pharmaceutical Sciences-Biomarkers, Bioinformatics, and Omics, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Christian Jost
- Cancer Immunotherapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Zurich, F. Hoffmann-La Roche Ltd., Schlieren, Switzerland
| | - Christian Klein
- Cancer Immunotherapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Zurich, F. Hoffmann-La Roche Ltd., Schlieren, Switzerland
| | - Roland E Kontermann
- Institute of Cell Biology and Immunology, Stuttgart University, Stuttgart, Germany
| | - Hendrik Knoetgen
- Therapeutic Modalities, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland; and
| | - Martin Steegmaier
- Large Molecule Research, Roche Pharma Research and Early Development, Roche Innovation Center Munich, F. Hoffmann-La Roche Ltd., Penzberg, Germany
| | - Andrea Romagnani
- Molecular Targeted Therapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Yvonne A Nagel
- Molecular Targeted Therapy-Discovery Oncology, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland;
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25
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Garcia M, Hoffer L, Leblanc R, Benmansour F, Feracci M, Derviaux C, Egea-Jimenez AL, Roche P, Zimmermann P, Morelli X, Barral K. Fragment-based drug design targeting syntenin PDZ2 domain involved in exosomal release and tumour spread. Eur J Med Chem 2021; 223:113601. [PMID: 34153575 DOI: 10.1016/j.ejmech.2021.113601] [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: 03/22/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 11/17/2022]
Abstract
Syntenin stimulates exosome production and its expression is upregulated in many cancers and implicated in the spread of metastatic tumor. These effects are supported by syntenin PDZ domains interacting with syndecans. We therefore aimed to develop, through a fragment-based drug design approach, novel inhibitors targeting syntenin-syndecan interactions. We describe here the optimization of a fragment, 'hit' C58, identified by in vitro screening of a PDZ-focused fragment library, which binds specifically to the syntenin-PDZ2 domain at the same binding site as the syndecan-2 peptide. X-ray crystallographic structures and computational docking were used to guide our optimization process and lead to compounds 45 and 57 (IC50 = 33 μM and 47 μM; respectively), two representatives of syntenin-syndecan interactions inhibitors, that selectively affect the syntenin-exosome release. These findings demonstrate that it is possible to identify small molecules inhibiting syntenin-syndecan interaction and exosome release that may be useful for cancer therapy.
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Affiliation(s)
- Manon Garcia
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Laurent Hoffer
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Raphaël Leblanc
- Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm1068, CNRS7258, Institut Paoli-Calmettes, 13009 Marseille, France
| | - Fatiha Benmansour
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Mikael Feracci
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Carine Derviaux
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Antonio Luis Egea-Jimenez
- Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm1068, CNRS7258, Institut Paoli-Calmettes, 13009 Marseille, France
| | - Philippe Roche
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Pascale Zimmermann
- Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm1068, CNRS7258, Institut Paoli-Calmettes, 13009 Marseille, France; Department of Human Genetics, K. U. Leuven, B-3000, Leuven, Belgium
| | - Xavier Morelli
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France
| | - Karine Barral
- Centre de Recherche en Cancérologie de Marseille (CRCM), Integrative Structural & Chemical Biology, Aix-Marseille Université, Inserm 1068, CNRS 7258, Institut Paoli Calmettes, 13009, Marseille, France.
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26
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Yang H, Wei L, Xun Y, Yang A, You H. BRD4: An emerging prospective therapeutic target in glioma. MOLECULAR THERAPY-ONCOLYTICS 2021; 21:1-14. [PMID: 33851008 PMCID: PMC8010576 DOI: 10.1016/j.omto.2021.03.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite advances in treatment, the prognosis for glioma patients remains poor. Bromodomain-containing protein 4 (BRD4), a member of the bromodomain and extraterminal (BET) protein family, plays an important role in controlling oncogene expression and genome stability. In recent years, numerous BRD4 inhibitors have entered clinical trials and achieved exciting results in tumor treatment. Recent clinical studies have shown that BRD4 expression in glioma is significantly higher than in the adjacent normal brain tissue. BRD4 inhibitors effectively penetrate the blood-brain barrier and target glioma tumor tissues but have little effect on normal brain tissues. Thus, BRD4 is a target for the treatment of glioma. In this study, we discuss the progress in the use of BRD4 inhibitors for glioma treatment, their mechanism of action, and their broad potential clinical application.
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Affiliation(s)
- Hua Yang
- Department of Basic Medicine and Biomedical Engineering, School of Medicine, Foshan University, Foshan 528000, Guangdong Province, China
| | - Li Wei
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, Guangdong Province, China
| | - Yang Xun
- Department of Basic Medicine and Biomedical Engineering, School of Medicine, Foshan University, Foshan 528000, Guangdong Province, China
| | - Anping Yang
- Department of Basic Medicine and Biomedical Engineering, School of Medicine, Foshan University, Foshan 528000, Guangdong Province, China
| | - Hua You
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, Guangdong Province, China
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27
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Li J, Zhang W, Qiu Q, Zhou D, Feng Z, Tong Z, Wei J, Huang W, Li J, Qian H, Shi W. Design, synthesis, and biological evaluation of novel 4,4-difluoro-1-methyl-N, 6-diphenyl-5, 6-dihydro-4H-pyrimido [4, 5-b] [1, 2, 4] triazolo [4, 3-d] [1, 4] diazepin-8-amine derivatives as potential BRD4 inhibitors. Chem Biol Drug Des 2021; 97:1117-1128. [PMID: 33638254 DOI: 10.1111/cbdd.13833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/10/2021] [Accepted: 02/21/2021] [Indexed: 11/28/2022]
Abstract
Bromodomain-containing protein 4 (BRD4) plays an extremely important physiological role in cancer, and the BRD4 inhibitors can effectively inhibit the proliferation of tumor cells. By taking BI-2536 (PLK1 and BRD4 inhibitor) as the lead compound, sixteen novel BRD4 inhibitors with the 4,4-difluoro-1-methyl-N,6-diphenyl-5,6-dihydro-4H-pyrimido[4,5-b] [1,2,4] triazolo[4,3-d] [1,4] diazepine-8-amine structure were designed and synthetized. Among the target compounds, compound 15h exhibited outstanding inhibition for BRD4-BD1 (IC50 value of 0.42 μM) in the BRD4-BD1 inhibitory activity assay. Additionally, cell growth inhibition assay demonstrated that compound 15h potently suppressed the proliferation of MV4-11 cells (IC50 value of 0.51 μM). Besides, compound 15h induced apoptosis and G0/G1 cycle arrest in MV4-11 leukemia cells effectively, and downregulated the expression of c-Myc in a dose-dependent manner. In summary, the optimal compound 15h is expected to become the clinical therapeutic drug for further research.
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Affiliation(s)
- Jiuhui Li
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Wenjie Zhang
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
| | - Qianqian Qiu
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Daoguang Zhou
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Ziying Feng
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Zhenzhen Tong
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Jiaxin Wei
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Wenlong Huang
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
| | - Jieming Li
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Hai Qian
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing, China
| | - Wei Shi
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
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28
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Muddassir M, Soni K, Sangani CB, Alarifi A, Afzal M, Abduh NAY, Duan Y, Bhadja P. Bromodomain and BET family proteins as epigenetic targets in cancer therapy: their degradation, present drugs, and possible PROTACs. RSC Adv 2021; 11:612-636. [PMID: 35746919 PMCID: PMC9133982 DOI: 10.1039/d0ra07971e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/28/2020] [Indexed: 12/27/2022] Open
Abstract
Alteration in the pattern of epigenetic marking leads to cancer, neurological disorders, inflammatory problems etc. These changes are due to aberration in histone modification enzymes that function as readers, writers and erasers. Bromodomains (BDs) and BET proteins that recognize acetylation of chromatin regulate gene expression. To block the function of any of these BrDs and/or BET protein can be a controlling agent in disorders such as cancer. BrDs and BET proteins are now emerging as targets for new therapeutic development. Traditional drugs like enzyme inhibitors and protein–protein inhibitors have many limitations. Recently Proteolysis-Targeting Chimeras (PROTACs) have become an advanced tool in therapeutic intervention as they remove disease causing proteins. This review provides an overview of the development and mechanisms of PROTACs for BRD and BET protein regulation in cancer and advanced possibilities of genetic technologies in therapeutics. Alteration in the pattern of epigenetic marking leads to cancer, neurological disorders, inflammatory problems etc.![]()
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Affiliation(s)
- Mohd. Muddassir
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- KSA
| | - Kunjal Soni
- Shri Maneklal M. Patel Institute of Sciences and Research
- Kadi Sarva Vishwavidyalaya University
- Gandhinagar
- India
| | - Chetan B. Sangani
- Shri Maneklal M. Patel Institute of Sciences and Research
- Kadi Sarva Vishwavidyalaya University
- Gandhinagar
- India
| | - Abdullah Alarifi
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- KSA
| | - Mohd. Afzal
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- KSA
| | - Naaser A. Y. Abduh
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- KSA
| | - Yongtao Duan
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases
- Zhengzhou Children's Hospital
- Zhengzhou University
- Zhengzhou 450018
- China
| | - Poonam Bhadja
- Arthropod Ecology and Biological Control Research Group
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Environment and Labour Safety
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29
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Leblanc R, Kashyap R, Barral K, Egea-Jimenez AL, Kovalskyy D, Feracci M, Garcia M, Derviaux C, Betzi S, Ghossoub R, Platonov M, Roche P, Morelli X, Hoffer L, Zimmermann P. Pharmacological inhibition of syntenin PDZ2 domain impairs breast cancer cell activities and exosome loading with syndecan and EpCAM cargo. J Extracell Vesicles 2020; 10:e12039. [PMID: 33343836 PMCID: PMC7737769 DOI: 10.1002/jev2.12039] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 11/02/2020] [Accepted: 11/14/2020] [Indexed: 12/17/2022] Open
Abstract
Exosomes support cell-to-cell communication in physiology and disease, including cancer. We currently lack tools, such as small chemicals, capable of modifying exosome composition and activity in a specific manner. Building on our previous understanding of how syntenin, and its PDZ partner syndecan (SDC), impact on exosome composition we optimized a small chemical compound targeting the PDZ2 domain of syntenin. In vitro , in tests on MCF-7 breast carcinoma cells, this compound is non-toxic and impairs cell proliferation, migration and primary sphere formation. It does not affect the size or the number of secreted particles, yet it decreases the amounts of exosomal syntenin, ALIX and SDC4 while leaving other exosomal markers unaffected. Interestingly, it also blocks the sorting of EpCAM, a bona fide target used for carcinoma exosome immunocapture. Our study highlights the first characterization of a small pharmacological inhibitor of the syntenin-exosomal pathway, of potential interest for exosome research and oncology.
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Affiliation(s)
- R Leblanc
- Equipe labellisée Ligue 2018 Centre de Recherche en Cancérologie de Marseille (CRCM) Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes Marseille France
| | - R Kashyap
- Equipe labellisée Ligue 2018 Centre de Recherche en Cancérologie de Marseille (CRCM) Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes Marseille France
| | - K Barral
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - A L Egea-Jimenez
- Equipe labellisée Ligue 2018 Centre de Recherche en Cancérologie de Marseille (CRCM) Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes Marseille France
| | - D Kovalskyy
- Enamine Ltd. Kyiv Ukraine.,Taras Shevchenko National University of Kyiv Kyiv Ukraine
| | - M Feracci
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - M Garcia
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - C Derviaux
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - S Betzi
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - R Ghossoub
- Equipe labellisée Ligue 2018 Centre de Recherche en Cancérologie de Marseille (CRCM) Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes Marseille France
| | - M Platonov
- Enamine Ltd. Kyiv Ukraine.,Institute of Molecular Biology and Genetics National Academy of Sciences of Ukraine Kyiv Ukraine
| | - P Roche
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - X Morelli
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - L Hoffer
- Centre de Recherche en Cancérologie de Marseille Integrative Structural & Chemical Biology Aix-Marseille Université, Inserm, CNRS, Institut Paoli Calmettes Marseille France
| | - Pascale Zimmermann
- Equipe labellisée Ligue 2018 Centre de Recherche en Cancérologie de Marseille (CRCM) Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes Marseille France.,Department of Human Genetics K. U. Leuven Leuven Belgium
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30
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Khan P, Siddiqui JA, Maurya SK, Lakshmanan I, Jain M, Ganti AK, Salgia R, Batra SK, Nasser MW. Epigenetic landscape of small cell lung cancer: small image of a giant recalcitrant disease. Semin Cancer Biol 2020; 83:57-76. [PMID: 33220460 PMCID: PMC8218609 DOI: 10.1016/j.semcancer.2020.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022]
Abstract
Small cell lung cancer (SCLC) is a particular subtype of lung cancer with high mortality. Recent advances in understanding SCLC genomics and breakthroughs of immunotherapy have substantially expanded existing knowledge and treatment modalities. However, challenges associated with SCLC remain enigmatic and elusive. Most of the conventional drug discovery approaches targeting altered signaling pathways in SCLC end up in the 'grave-yard of drug discovery', which mandates exploring novel approaches beyond inhibiting cell signaling pathways. Epigenetic modifications have long been documented as the key contributors to the tumorigenesis of almost all types of cancer, including SCLC. The last decade witnessed an exponential increase in our understanding of epigenetic modifications for SCLC. The present review highlights the central role of epigenetic regulations in acquiring neoplastic phenotype, metastasis, aggressiveness, resistance to chemotherapy, and immunotherapeutic approaches of SCLC. Different types of epigenetic modifications (DNA/histone methylation or acetylation) that can serve as predictive biomarkers for prognostication, treatment stratification, neuroendocrine lineage determination, and development of potential SCLC therapies are also discussed. We also review the utility of epigenetic targets/epidrugs in combination with first-line chemotherapy and immunotherapy that are currently under investigation in preclinical and clinical studies. Altogether, the information presents the inclusive landscape of SCLC epigenetics and epidrugs that will help to improve SCLC outcomes.
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Affiliation(s)
- Parvez Khan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Shailendra Kumar Maurya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Apar Kishor Ganti
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Division of Oncology-Hematology, Department of Internal Medicine, VA-Nebraska Western Iowa Health Care System, Omaha, NE, 68105, USA; Division of Oncology-Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ravi Salgia
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte 91010, CA, USA
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Mohd Wasim Nasser
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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31
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Altenburg B, Frings M, Schöbel JH, Goßen J, Pannen K, Vanderliek K, Rossetti G, Koschmieder S, Chatain N, Bolm C. Chiral Analogues of PFI-1 as BET Inhibitors and Their Functional Role in Myeloid Malignancies. ACS Med Chem Lett 2020; 11:1928-1934. [PMID: 33062175 DOI: 10.1021/acsmedchemlett.9b00625] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/02/2020] [Indexed: 12/13/2022] Open
Abstract
Structural analogues of PFI-1 varying at the sulfur core were prepared, and their activities as BET inhibitors in myeloid cell lines and primary cells from patients with acute myeloid leukemia were studied. Docking calculations followed by molecular dynamics simulations revealed the binding mode of the newly prepared inhibitors, suggesting explanations for the observed high enantiospecificity of the inhibitory activity.
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Affiliation(s)
- Bianca Altenburg
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Marcus Frings
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Jan-Hendrik Schöbel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Jonas Goßen
- Institute of Neuroscience and Medicine (INM-9)/Institute for Advanced Simulation (IAS-5), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen University, 52074 Aachen, Germany
| | - Kristina Pannen
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Kim Vanderliek
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Giulia Rossetti
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
- Institute of Neuroscience and Medicine (INM-9)/Institute for Advanced Simulation (IAS-5), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
- Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
| | - Steffen Koschmieder
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Nicolas Chatain
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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32
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Zhong L, Yang Z, Lei D, Li L, Song S, Cao D, Liu Y. Bromodomain 4 is a potent prognostic marker associated with immune cell infiltration in breast cancer. Basic Clin Pharmacol Toxicol 2020; 128:169-182. [PMID: 32799413 DOI: 10.1111/bcpt.13481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/26/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022]
Abstract
Bromodomain 4 (BRD4), a member of the bromodomain and extra-terminal domain protein family, has become a promising epigenetic target in cancer and inflammatory diseases; however, the detailed biological role of BRD4 in breast cancer (BRCA) remains undetermined. We analysed the BRD4 expression levels using the Oncomine and TIMER databases and evaluated the clinical impact of BRD4 on BRCA prognosis using Kaplan-Meier plot and PrognoScan. The correlation between BRD4 and tumour-infiltrating immune cells was investigated using TIMER. Furthermore, the correlation between BRD4 expression levels was also analysed using TIMER in addition to the GEPIA database for immune cell gene markers. BRD4 expression was significantly higher in BRCA tissues than in normal tissues, which was significantly correlated with poor overall survival (OS). Specifically, high BRD4 expression was correlated with worse OS and progression-free survival in patients with BRCA. In addition, BRD4 expression was correlated with levels of infiltrating monocytes (CSF1R, cor = 0.204, P = 9.19e-12), tumour-associated macrophages (CD68, cor = 0.129, P = 1.81e-05), M1/M2 macrophages and different effector T cells (including Th1/Th2/Treg) in BRCA. These findings suggest that BRD4 could be used as a prognostic biomarker for determining prognosis and immune cell infiltration levels in BRCA.
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Affiliation(s)
- Limei Zhong
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Zhiyong Yang
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Da Lei
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Lijuan Li
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Shaohua Song
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Donglin Cao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yufeng Liu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.,Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
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33
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Lam FC, Kong YW, Huang Q, Vu Han TL, Maffa AD, Kasper EM, Yaffe MB. BRD4 prevents the accumulation of R-loops and protects against transcription-replication collision events and DNA damage. Nat Commun 2020; 11:4083. [PMID: 32796829 PMCID: PMC7428008 DOI: 10.1038/s41467-020-17503-y] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 06/17/2020] [Indexed: 12/20/2022] Open
Abstract
Proper chromatin function and maintenance of genomic stability depends on spatiotemporal coordination between the transcription and replication machinery. Loss of this coordination can lead to DNA damage from increased transcription-replication collision events. We report that deregulated transcription following BRD4 loss in cancer cells leads to the accumulation of RNA:DNA hybrids (R-loops) and collisions with the replication machinery causing replication stress and DNA damage. Whole genome BRD4 and γH2AX ChIP-Seq with R-loop IP qPCR reveals that BRD4 inhibition leads to accumulation of R-loops and DNA damage at a subset of known BDR4, JMJD6, and CHD4 co-regulated genes. Interference with BRD4 function causes transcriptional downregulation of the DNA damage response protein TopBP1, resulting in failure to activate the ATR-Chk1 pathway despite increased replication stress, leading to apoptotic cell death in S-phase and mitotic catastrophe. These findings demonstrate that inhibition of BRD4 induces transcription-replication conflicts, DNA damage, and cell death in oncogenic cells.
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Affiliation(s)
- Fred C Lam
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA.
- Center for Precision Cancer Medicine, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA.
- Faculty of Health Sciences, Division of Neurosurgery, Hamilton General Hospital, McMaster University, 237 Barton St E, Hamilton, ON, L8L 2X2, Canada.
| | - Yi Wen Kong
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA
- Center for Precision Cancer Medicine, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA
| | - Qiuying Huang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA
| | - Tu-Lan Vu Han
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA
| | - Amanda D Maffa
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA
| | - Ekkehard M Kasper
- Faculty of Health Sciences, Division of Neurosurgery, Hamilton General Hospital, McMaster University, 237 Barton St E, Hamilton, ON, L8L 2X2, Canada
| | - Michael B Yaffe
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA.
- Center for Precision Cancer Medicine, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02139, USA.
- Departments of Biology and Bioengineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- Beth Israel Deaconess Medical Center, Department of Surgery, Harvard Medical School, Boston, MA, 02215, USA.
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34
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Ferguson FM, Liu Y, Harshbarger W, Huang L, Wang J, Deng X, Capuzzi SJ, Muratov EN, Tropsha A, Muthuswamy S, Westover KD, Gray NS. Synthesis and Structure-Activity Relationships of DCLK1 Kinase Inhibitors Based on a 5,11-Dihydro-6 H-benzo[ e]pyrimido[5,4- b][1,4]diazepin-6-one Scaffold. J Med Chem 2020; 63:7817-7826. [PMID: 32530623 DOI: 10.1021/acs.jmedchem.0c00596] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Doublecortin-like kinase 1 (DCLK1) is a serine/threonine kinase that is overexpressed in gastrointestinal cancers, including esophageal, gastric, colorectal, and pancreatic cancers. DCLK1 is also used as a marker of tuft cells, which regulate type II immunity in the gut. However, the substrates and functions of DCLK1 are understudied. We recently described the first selective DCLK1/2 inhibitor, DCLK1-IN-1, developed to aid the functional characterization of this important kinase. Here we describe the synthesis and structure-activity relationships of 5,11-dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one DCLK1 inhibitors, resulting in the identification of DCLK1-IN-1.
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Affiliation(s)
- Fleur M Ferguson
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Yan Liu
- Departments of Radiation Oncology and Biochemistry, The University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, United States
| | - Wayne Harshbarger
- Departments of Radiation Oncology and Biochemistry, The University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, United States
| | - Ling Huang
- Cancer Research Institute and Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Jinhua Wang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Xianming Deng
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Stephen J Capuzzi
- UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Eugene N Muratov
- UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Alexander Tropsha
- UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Senthil Muthuswamy
- Cancer Research Institute and Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, United States.,Departments of Medicine and Pathology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Kenneth D Westover
- Departments of Radiation Oncology and Biochemistry, The University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, United States
| | - Nathanael S Gray
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
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35
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Zhao ZB, Li X, Chen MW, Zhao ZK, Zhou YG. Biomimetic asymmetric reduction of benzoxazinones and quinoxalinones using ureas as transfer catalysts. Chem Commun (Camb) 2020; 56:7309-7312. [PMID: 32478362 DOI: 10.1039/d0cc03091k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using ureas as transfer catalysts through hydrogen bonding activation, biomimetic asymmetric reduction of benzoxazinones and quinoxalinones with chiral and regenerable NAD(P)H models was described, giving chiral dihydrobenzoxazinones and dihydroquinoxalinones with high yields and excellent enantioselectivities. A key dihydroquinoxalinone intermediate of a BRD4 inhibitor was synthesized using biomimetic asymmetric reduction.
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Affiliation(s)
- Zi-Biao Zhao
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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36
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Xu Y, Wang Q, Xiao K, Liu Z, Zhao L, Song X, Hu X, Feng Z, Gao T, Zuo W, Zeng J, Wang N, Yu L. Novel Dual BET and PLK1 Inhibitor WNY0824 Exerts Potent Antitumor Effects in CRPC by Inhibiting Transcription Factor Function and Inducing Mitotic Abnormality. Mol Cancer Ther 2020; 19:1221-1231. [PMID: 32220972 DOI: 10.1158/1535-7163.mct-19-0578] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 12/31/2019] [Accepted: 03/19/2020] [Indexed: 02/05/2023]
Abstract
Castration-resistant prostate cancer (CRPC) is a lethal disease with few treatment alternatives once patients become resistant to second-generation antiandrogens. In CRPC, BET proteins are key regulators of AR- and MYC-mediated transcription, while the PLK1 inhibitor potentially downregulates AR and MYC besides influencing the cell cycle. Therefore, synchronous inhibition of BET and PLK1 would be a promising approach for CRPC therapy. This study developed a dual BET and PLK1 inhibitor WNY0824 with nanomolar and equipotent inhibition of BRD4 and PLK1. In vitro, WNY0824 exhibited excellent antiproliferation activity on AR-positive CRPC cells and induced apoptosis. These activities are attributable to its disruption of the AR-transcriptional program and the inhibition of the ETS pathway. Furthermore, WNY0824 downregulated MYC and induced mitotic abnormality. In vivo, oral WNY0824 administration suppressed tumor growth in the CRPC xenograft model of enzalutamide resistance. These findings suggest that WNY0824 is a selective dual BET and PLK1 inhibitor with potent anti-CRPC oncogenic activity and provides insights into the development of other novel dual BET- and PLK1-inhibiting drugs.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Apoptosis
- Benzamides
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Cycle
- Cell Cycle Proteins/antagonists & inhibitors
- Drug Resistance, Neoplasm/drug effects
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Male
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Mitosis
- Nitriles
- Phenylthiohydantoin/analogs & derivatives
- Phenylthiohydantoin/pharmacology
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Prostatic Neoplasms, Castration-Resistant/pathology
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Proto-Oncogene Proteins/antagonists & inhibitors
- Receptors, Androgen/chemistry
- Transcription Factors/antagonists & inhibitors
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
- Polo-Like Kinase 1
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Affiliation(s)
- Ying Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Qianqian Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Kunjie Xiao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhihao Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Lifeng Zhao
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Xuejiao Song
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Xi Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhanzhan Feng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Tiantao Gao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Weiqiong Zuo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jun Zeng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Ningyu Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Luoting Yu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, China.
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37
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Tan YF, Wang M, Chen ZY, Wang L, Liu XH. Inhibition of BRD4 prevents proliferation and epithelial-mesenchymal transition in renal cell carcinoma via NLRP3 inflammasome-induced pyroptosis. Cell Death Dis 2020; 11:239. [PMID: 32303673 PMCID: PMC7165180 DOI: 10.1038/s41419-020-2431-2] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 01/16/2023]
Abstract
BRD4 has long been implicated in many different pathological processes, in particular, the development of cancer and inflammation. Pyroptosis is a newly recognized type of inflammatory programmed cell death. However, the correlation between BRD4 and pyroptosis in renal cell carcinoma (RCC) remains elusive. The present study demonstrates that BRD4 expression levels are markedly upregulated, while pyroptosis-associated proteins are significantly reduced, in RCC tissues and cells. Inhibition of BRD4, via either genetic knockdown or use of bromodomain inhibitor JQ1, prevented cell proliferation and epithelial-mesenchymal transition (EMT) progression and induced caspase-1-dependent pyroptosis in RCC both in vitro and in vivo. In addition, BRD4 inhibition suppressed proliferation and EMT though pyroptosis in vitro and in vivo. Moreover, NLRP3, which mediates caspase-1-dependent pyroptosis, was increased upon BRD4 inhibition. Furthermore, the transcriptional activity of NLRP3 was enhanced by BRD4 inhibition, and this enhancement was blocked by activation of NF-κB phosphorylation, indicating that NF-κB is an upstream regulator of NLRP3. Collectively, these results show that BRD4 inhibition prevents cell proliferation and EMT, and exerts an antitumor effect in RCC by activating the NF-κB-NLRP3-caspase-1 pyroptosis signaling pathway. Thus, BRD4 is a potential target for RCC treatment, and JQ1 shows promise as a therapeutic agent for this disease.
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Affiliation(s)
- Yi-Fan Tan
- Department of Urology, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China
| | - Min Wang
- Department of Urology, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China.
| | - Zhi-Yuan Chen
- Department of Urology, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China.
| | - Lei Wang
- Department of Urology, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China
| | - Xiu-Heng Liu
- Department of Urology, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China
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38
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Moreno V, Sepulveda JM, Vieito M, Hernández-Guerrero T, Doger B, Saavedra O, Ferrero O, Sarmiento R, Arias M, De Alvaro J, Di Martino J, Zuraek M, Sanchez-Pérez T, Aronchik I, Filvaroff EH, Lamba M, Hanna B, Nikolova Z, Braña I. Phase I study of CC-90010, a reversible, oral BET inhibitor in patients with advanced solid tumors and relapsed/refractory non-Hodgkin's lymphoma. Ann Oncol 2020; 31:780-788. [PMID: 32240793 DOI: 10.1016/j.annonc.2020.03.294] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/13/2020] [Accepted: 03/18/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Bromodomain and extra-terminal (BET) proteins are epigenetic readers that regulate expression of genes involved in oncogenesis. CC-90010 is a novel, oral, reversible, small-molecule BET inhibitor. PATIENTS AND METHODS CC-90010-ST-001 (NCT03220347; 2015-004371-79) is a phase I dose-escalation and expansion study of CC-90010 in patients with advanced or unresectable solid tumors and relapsed/refractory (R/R) non-Hodgkin's lymphoma (NHL). We report results from the dose escalation phase, which explored 11 dose levels and four dosing schedules, two weekly (2 days on/5 days off; 3 days on/4 days off), one biweekly (3 days on/11 days off), and one monthly (4 days on/24 days off). The primary objectives were to determine the safety, maximum tolerated dose (MTD) and/or recommended phase II dose (RP2D) and schedule. Secondary objectives were to evaluate signals of early antitumor activity, pharmacokinetics, and pharmacodynamics. RESULTS This study enrolled 69 patients, 67 with solid tumors and two with diffuse large B-cell lymphoma (DLBCL). The median age was 57 years (range, 21-80) and the median number of prior regimens was four (range, 1-9). Treatment-related adverse events (TRAEs) were mostly mild and manageable; grade 3/4 TRAEs reported in more than two patients were thrombocytopenia (13%), anemia, and fatigue (4% each). Six patients had dose-limiting toxicities. MTDs were 15 mg (2 days on/5 days off), 30 mg (3 days on/11 days off), and 45 mg (4 days on/24 days off). The RP2D and schedule selected for expansion was 45 mg (4 days on/24 days off). As of 8 October 2019, one patient with grade 2 astrocytoma achieved a complete response, one patient with endometrial carcinoma had a partial response, and six patients had prolonged stable disease ≥11 months. CONCLUSIONS CC-90010 is well tolerated, with single-agent activity in patients with heavily pretreated, advanced solid tumors.
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Affiliation(s)
- V Moreno
- START Madrid-FJD, Hospital Fundación Jimenez Diaz, Madrid, Spain.
| | - J M Sepulveda
- Department of Medical Oncology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - M Vieito
- Department of Gene Expression and Cancer, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | | | - B Doger
- START Madrid-FJD, Hospital Fundación Jimenez Diaz, Madrid, Spain
| | - O Saavedra
- Department of Gene Expression and Cancer, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - O Ferrero
- START Madrid-FJD, Hospital Fundación Jimenez Diaz, Madrid, Spain
| | - R Sarmiento
- Celgene Institute for Translational Research Europe, a Bristol Myers Squibb Company, Seville, Spain
| | - M Arias
- Celgene Institute for Translational Research Europe, a Bristol Myers Squibb Company, Seville, Spain
| | - J De Alvaro
- Celgene Institute for Translational Research Europe, a Bristol Myers Squibb Company, Seville, Spain
| | | | - M Zuraek
- Bristol Myers Squibb, San Francisco, USA
| | - T Sanchez-Pérez
- Celgene Institute for Translational Research Europe, a Bristol Myers Squibb Company, Seville, Spain
| | - I Aronchik
- Bristol Myers Squibb, San Francisco, USA
| | | | - M Lamba
- Bristol Myers Squibb, Summit, USA
| | - B Hanna
- Bristol Myers Squibb, Summit, USA
| | - Z Nikolova
- Celgene Institute for Translational Research Europe, a Bristol Myers Squibb Company, Seville, Spain
| | - I Braña
- Department of Gene Expression and Cancer, Vall d'Hebron Institute of Oncology, Barcelona, Spain
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39
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Hu X, Chen LF. Pinning Down the Transcription: A Role for Peptidyl-Prolyl cis-trans Isomerase Pin1 in Gene Expression. Front Cell Dev Biol 2020; 8:179. [PMID: 32266261 PMCID: PMC7100383 DOI: 10.3389/fcell.2020.00179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/04/2020] [Indexed: 12/14/2022] Open
Abstract
Pin1 is a peptidyl-prolyl cis-trans isomerase that specifically binds to a phosphorylated serine or threonine residue preceding a proline (pSer/Thr-Pro) motif and catalyzes the cis-trans isomerization of proline imidic peptide bond, resulting in conformational change of its substrates. Pin1 regulates many biological processes and is also involved in the development of human diseases, like cancer and neurological diseases. Many Pin1 substrates are transcription factors and transcription regulators, including RNA polymerase II (RNAPII) and factors associated with transcription initiation, elongation, termination and post-transcription mRNA decay. By changing the stability, subcellular localization, protein-protein or protein-DNA/RNA interactions of these transcription related proteins, Pin1 modulates the transcription of many genes related to cell proliferation, differentiation, apoptosis and immune response. Here, we will discuss how Pin regulates the properties of these transcription relevant factors for effective gene expression and how Pin1-mediated transcription contributes to the diverse pathophysiological functions of Pin1.
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Affiliation(s)
- Xiangming Hu
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Lin-Feng Chen
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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40
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Zhang F, Wu Z, Chen P, Zhang J, Wang T, Zhou J, Zhang H. Discovery of a new class of PROTAC BRD4 degraders based on a dihydroquinazolinone derivative and lenalidomide/pomalidomide. Bioorg Med Chem 2020; 28:115228. [DOI: 10.1016/j.bmc.2019.115228] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/04/2019] [Accepted: 11/18/2019] [Indexed: 12/16/2022]
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41
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Jacques C, Lavaud M, Georges S, Tesfaye R, Baud’huin M, Lamoureux F, Ory B. BET bromodomains’ functions in bone-related pathologies. Epigenomics 2020; 12:127-144. [DOI: 10.2217/epi-2019-0172] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Throughout life, bones are subjected to the so-called ‘bone-remodeling’ process, which is a balanced mechanism between the apposition and the resorption of bone. This remodeling process depends on the activities of bone-specialized cells, namely the osteoblasts and the osteoclasts. Any deregulation in this process results in bone-related pathologies, classified as either metabolic nonmalignant diseases (such as osteoporosis) or malignant primary bone sarcomas. As these pathologies are not characterized by common targetable genetic alterations, epigenetic strategies could be relevant and promising options. Recently, targeting epigenetic regulators such as the bromodomains and extraterminal domains (BET) readers have achieved success in numerous other pathologies, including cancers. In this review, we highlight the current state of the art in terms of the diverse implications of BET bromodomain proteins in the bone’s biology and its defects. Consequently, their role in bone-related pathologies will also be developed, especially in the context of the primary bone sarcomas.
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Affiliation(s)
- Camille Jacques
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
| | - Melanie Lavaud
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
| | - Steven Georges
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
| | - Robel Tesfaye
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
- ‘Niches & Epigenetics of Tumors’ Network from Cancéropôle Grand Ouest
| | - Marc Baud’huin
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
| | - François Lamoureux
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
| | - Benjamin Ory
- Nantes Université, INSERM, Bone sarcomas & remodeling of calcified tissues, UMR 1238, F-44000 Nantes, France
- ‘Niches & Epigenetics of Tumors’ Network from Cancéropôle Grand Ouest
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42
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Li M, Li T, Ma W, Wang X, Zhao G. MicroRNA-608 promotes apoptosis via BRD4 downregulation in pancreatic ductal adenocarcinoma. Oncol Lett 2019; 19:1418-1426. [PMID: 32002032 PMCID: PMC6960394 DOI: 10.3892/ol.2019.11246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 11/07/2019] [Indexed: 01/08/2023] Open
Abstract
The prognosis of pancreatic ductal adenocarcinoma (PDAC) remains poor even among patients with the same Tumor-Node-Metastasis stage. Thus, it is necessary to identify biomarkers that can accurately predict outcomes. There is accumulating evidence suggesting that microRNA (miR) expression influences overall survival (OS) time in patients with PDAC, via the regulation of tumor suppressor genes and oncogene expression. Specifically, miR-608 expression is hypothesized to regulate PDAC progression via the downregulation of bromodomain-containing protein 4 (BRD4) expression and the promotion of cell apoptosis. The present study aimed to investigate this theory. Thus, whole genome expression microarray analysis was performed on three patient samples with OS time >30 months, and compared with three samples with <12 months, in order to identify differentially expressed miRNAs (DEMs), via EdgeR analysis. A total of 591 DEMs were identified that exhibited a fold change >1, including 390 upregulated and 201 downregulated genes. Subsequently, 10 DEMs were identified using quantitative PCR in a different population of 68 tissues, collected from patients with PDAC. Notably, a high level of miRNA-608 expression was associated with longer OS times (P<0.05). Bioinformatics analysis was then performed to predict the molecular mechanism underlying the regulation of cell apoptosis by miRNA-608, and a dual-luciferase assay determined that overexpression of mimics in the Panc-1 and Bxpc-3 pancreatic cancer cell lines increased levels of apoptosis compared with the control. Additionally, high miRNA-608 expression decreased the protein level of BRD4. A luciferase reporting assay was used to elucidate whether miRNA-608 may directly inhibit the expression of BRD4 by binding to the 3′-untranslated region of its mRNA in the same cell lines. A subsequent rescue experiment indicated that the upregulation of BRD4 may reverse the apoptosis-promoting effect induced by miRNA-608. In summary, the present study revealed that miRNA-608 promotes apoptosis in PDAC via the negative regulation of BRD4. The results of the present study provide a theoretical basis that may improve the prediction of prognosis in patients with PDAC, and also indicate an opportunity to develop individualized treatment and investigate novel therapeutics that target these mechanisms.
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Affiliation(s)
- Maoyuan Li
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China.,National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Ting Li
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China.,National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Weidong Ma
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China.,Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Xiuchao Wang
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China.,Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Gang Zhao
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China.,Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
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43
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Nguyen HHT, Yeoh LM, Chisholm SA, Duffy MF. Developments in drug design strategies for bromodomain protein inhibitors to target Plasmodium falciparum parasites. Expert Opin Drug Discov 2019; 15:415-425. [PMID: 31870185 DOI: 10.1080/17460441.2020.1704251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Introduction: Bromodomains (BRDs) bind to acetylated lysine residues, often on histones. The BRD proteins can contribute to gene regulation either directly through enzymatic activity or indirectly through recruitment of chromatin-modifying complexes or transcription factors. There is no evidence of direct orthologues of the Plasmodium falciparum BRD proteins (PfBDPs) outside the apicomplexans. PfBDPs are expressed during the parasite's life cycle in both the human host's blood and in the mosquito. PfBDPs could also prove to be promising targets for novel antimalarials, which are urgently required to address increasing drug resistance.Areas covered: This review discusses recent studies of the biology of PfBDPs, current target-based strategies for PfBDP inhibitor discovery, and different approaches to the important step of validating the specificity of hit compounds for PfBDPs.Expert opinion: The novelty of Plasmodium BRDs suggests that they could be targeted by selective compounds. Chemical series that showed promise in screens against human BRDs could be leveraged to create targeted compound libraries, as could hits from P. falciparum phenotypic screens. These targeted libraries and hits could be screened in target-based strategies aimed at discovery and optimization of novel inhibitors of PfBDPs. A key task for the field is to generate parasite assays to validate the hit compounds' specificity for PfBDPs.
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Affiliation(s)
- Hanh H T Nguyen
- The School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, Australia.,The Dept of Medicine and Radiology, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
| | - Lee M Yeoh
- The School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, Australia
| | - Scott A Chisholm
- The School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, Australia
| | - Michael F Duffy
- The School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, Australia.,The Dept of Medicine and Radiology, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
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44
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Challenges and Opportunities for High-grade B-Cell Lymphoma With MYC and BCL2 and/or BCL6 Rearrangement (Double-hit Lymphoma). Am J Clin Oncol 2019; 42:304-316. [PMID: 29419530 DOI: 10.1097/coc.0000000000000427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The most common subtype of non-Hodgkin lymphoma, diffuse large B-cell lymphoma, is cured in approximately two thirds of patients after initial therapy. The remaining one-third of patients who suffer relapse or become refractory have very poor survival outcomes despite salvage chemotherapy with or without stem cell transplantation. A considerable proportion of relapsed or refractory large B cells belong to the WHO subtype known as high-grade B-cell lymphoma with rearrangement of MYC and BCL2 and/or BCL6, also known as double-hit lymphoma (DHL). Most DHL patients present with Ann Arbor's stage III/IV, a comparatively higher rate of extranodal involvement including bone marrow and central nervous system infiltration, high levels of lactate dehydrogenase, and an elevated Ki67 expression in the tumor cells. Newer therapeutic approaches, including targeted therapy against BCL2, MYC, or other associated pathways, are needed. In addition, recent therapies that harness the immune system, such as checkpoint inhibitors and chimeric antigen receptor T-cell therapy, are changing the paradigm of treatment for non-Hodgkin lymphoma and could impact the outcome of DHL.
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45
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Yang Y, Chen P, Zhao L, Zhang F, Zhang H, Zhou J. Pharmacokinetics-Driven Optimization of 7-Methylimidazo[1,5- a]pyrazin-8(7H)-one as Novel BRD4 Inhibitors. ACS Med Chem Lett 2019; 10:1680-1685. [PMID: 31857846 DOI: 10.1021/acsmedchemlett.9b00474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 11/26/2019] [Indexed: 12/22/2022] Open
Abstract
The BET bromodomain containing protein (BRD4) plays a key role in transcription regulation. Therefore, efforts to generate BRD4 inhibitors with excellent potency and DMPK properties are of clinical value. As a continuing work to improve the stability in in vitro metabolic experiments of liver microsomes of our previously reported 7-methylimidazo[1,5-a]pyrazin-8(7H)-one, our optimization of this poor pharmacokinetics focusing on the phenyl substituent is performed. Fortunately, compound 17 displayed subnanomolar potency (IC50 = 30 nM) against BRD4(1), and its liver microsome stability in human, rat, and mouse are more favorable than previously reported inhibitor 28. Compound 17 exhibited antitumor efficacy with no significant toxicity in xenograft models of pancreatic cancer. In addition, fluorescent probe and nuclei-specific dye were utilized to verify apoptosis-inducing of compound 17 via intranuclear potency in BXPC-3 cell line.
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Affiliation(s)
- Yifei Yang
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Pan Chen
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Leilei Zhao
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing 210009, PR China
| | - Fangqing Zhang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing 210009, PR China
| | - Huibin Zhang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jinpei Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
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46
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Erkes DA, Rosenbaum SR, Field CO, Chervoneva I, Villanueva J, Aplin AE. PLX3397 inhibits the accumulation of intra-tumoral macrophages and improves bromodomain and extra-terminal inhibitor efficacy in melanoma. Pigment Cell Melanoma Res 2019; 33:372-377. [PMID: 31696640 DOI: 10.1111/pcmr.12845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/25/2019] [Accepted: 11/01/2019] [Indexed: 02/06/2023]
Abstract
Bromodomain and extra-terminal inhibitors (BETi) delay tumor growth, in part, through tumor cell intrinsic alterations and initiation of anti-tumor CD8+ T-cell responses. By contrast, BETi effects on pro-tumoral immune responses remain unclear. Here, we show that the next-generation BETi, PLX51107, delayed tumor growth to differing degrees in Braf V600E melanoma syngeneic mouse models. These differential responses were associated with the influx of tumor-associated macrophages during BETi treatment. Tumors that were poorly responsive to PLX51107 showed increased influx of colony-stimulating factor-1 receptor (CSF-1R)-positive tumor-associated macrophages. We depleted CSF-1R+ tumor-associated macrophages with the CSF-1R inhibitor, PLX3397, in combination with PLX51107. Treatment with PLX3397 enhanced the efficacy of PLX51107 in poorly responsive Braf V600E syngeneic melanomas in vivo. These findings suggest that tumor-associated macrophage accumulation limits BETi efficacy and that co-treatment with PLX3397 can improve response to PLX51107, offering a potential novel combination therapy for metastatic melanoma patients.
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Affiliation(s)
- Dan A Erkes
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Sheera R Rosenbaum
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Conroy O Field
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Inna Chervoneva
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA.,Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jessie Villanueva
- Molecular and Cellular Oncogenesis Program, Melanoma Research Center, The Wistar Institute, PA, USA
| | - Andrew E Aplin
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA.,Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
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47
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Morgado-Pascual JL, Rayego-Mateos S, Tejedor L, Suarez-Alvarez B, Ruiz-Ortega M. Bromodomain and Extraterminal Proteins as Novel Epigenetic Targets for Renal Diseases. Front Pharmacol 2019; 10:1315. [PMID: 31780938 PMCID: PMC6857099 DOI: 10.3389/fphar.2019.01315] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022] Open
Abstract
Epigenetic mechanisms, especially DNA methylation and histone modifications, are dynamic processes that regulate the gene expression transcriptional program in normal and diseased states. The bromodomain and extraterminal (BET) protein family (BRD2, BRD3, BRD4, and BRDT) are epigenetic readers that, via bromodomains, regulate gene transcription by binding to acetylated lysine residues on histones and master transcriptional factors. Experimental data have demonstrated the involvement of some BET proteins in many pathological conditions, including tumor development, infections, autoimmunity, and inflammation. Selective bromodomain inhibitors are epigenetic drugs that block the interaction between BET proteins and acetylated proteins, thus exerting beneficial effects. Recent data have described the beneficial effect of BET inhibition on experimental renal diseases. Emerging evidence underscores the importance of environmental modifications in the origin of pathological features in chronic kidney diseases (CKD). Several cellular processes such as oxidation, metabolic disorders, cytokines, inflammation, or accumulated uremic toxins may induce epigenetic modifications that regulate key processes involved in renal damage and in other pathological conditions observed in CKD patients. Here, we review how targeting bromodomains in BET proteins may regulate essential processes involved in renal diseases and in associated complications found in CKD patients, such as cardiovascular damage, highlighting the potential of epigenetic therapeutic strategies against BET proteins for CKD treatment and associated risks.
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Affiliation(s)
- Jose Luis Morgado-Pascual
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, Madrid, Spain.,Red de Investigación Renal (REDinREN), Madrid, Spain
| | - Sandra Rayego-Mateos
- Red de Investigación Renal (REDinREN), Madrid, Spain.,Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Lucia Tejedor
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, Madrid, Spain.,Red de Investigación Renal (REDinREN), Madrid, Spain
| | - Beatriz Suarez-Alvarez
- Red de Investigación Renal (REDinREN), Madrid, Spain.,Translational Immunology Laboratory, Health Research Institute of the Principality of Asturias (ISPA), Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma Madrid, Madrid, Spain.,Red de Investigación Renal (REDinREN), Madrid, Spain
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48
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Wang J, Wang H, Peters M, Ding N, Ribback S, Utpatel K, Cigliano A, Dombrowski F, Xu M, Chen X, Song X, Che L, Evert M, Cossu A, Gordan J, Zeng Y, Chen X, Calvisi DF. Loss of Fbxw7 synergizes with activated Akt signaling to promote c-Myc dependent cholangiocarcinogenesis. J Hepatol 2019; 71:742-752. [PMID: 31195063 PMCID: PMC6773530 DOI: 10.1016/j.jhep.2019.05.027] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/08/2019] [Accepted: 05/31/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS The ubiquitin ligase F-box and WD repeat domain-containing 7 (FBXW7) is recognized as a tumor suppressor in many cancer types due to its ability to promote the degradation of numerous oncogenic target proteins. Herein, we aimed to elucidate its role in intrahepatic cholangiocarcinoma (iCCA). METHODS Herein, we first confirmed that FBXW7 gene expression was reduced in human iCCA specimens. To identify the molecular mechanisms by which FBXW7 dysfunction promotes cholangiocarcinogenesis, we generated a mouse model by hydrodynamic tail vein injection of Fbxw7ΔF, a dominant negative form of Fbxw7, either alone or in association with an activated/myristylated form of AKT (myr-AKT). We then confirmed the role of c-MYC in human iCCA cell lines and its relationship to FBXW7 expression in human iCCA specimens. RESULTS FBXW7 mRNA expression is almost ubiquitously downregulated in human iCCA specimens. While forced overexpression of Fbxw7ΔF alone did not induce any appreciable abnormality in the mouse liver, co-expression with AKT triggered cholangiocarcinogenesis and mice had to be euthanized by 15 weeks post-injection. At the molecular level, a strong induction of Fbxw7 canonical targets, including Yap, Notch2, and c-Myc oncoproteins, was detected. However, only c-MYC was consistently confirmed as a FBXW7 target in human CCA cell lines. Most importantly, selected ablation of c-Myc completely impaired iCCA formation in AKT/Fbxw7ΔF mice, whereas deletion of either Yap or Notch2 only delayed tumorigenesis in the same model. In human iCCA specimens, an inverse correlation between the expression levels of FBXW7 and c-MYC transcriptional activity was observed. CONCLUSIONS Downregulation of FBXW7 is ubiquitous in human iCCA and cooperates with AKT to induce cholangiocarcinogenesis in mice via c-Myc-dependent mechanisms. Targeting c-MYC might represent an innovative therapy against iCCA exhibiting low FBXW7 expression. LAY SUMMARY There is mounting evidence that FBXW7 functions as a tumor suppressor in many cancer types, including intrahepatic cholangiocarcinoma, through its ability to promote the degradation of numerous oncoproteins. Herein, we have shown that the low expression of FBXW7 is ubiquitous in human cholangiocarcinoma specimens. This low expression is correlated with increased c-MYC activity, leading to tumorigenesis. Our findings suggest that targeting c-MYC might be an effective treatment for intrahepatic cholangiocarcinoma.
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Affiliation(s)
- Jingxiao Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China,Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Haichuan Wang
- Department of Liver Surgery, Liver Transplantation Division, West China Hospital, Sichuan University, Chengdu, China,Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Michele Peters
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Ning Ding
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Silvia Ribback
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Kirsten Utpatel
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Antonio Cigliano
- Institute of Pathology, University of Greifswald, Greifswald, Germany,Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Frank Dombrowski
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Meng Xu
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California,Department of General Surgery, The Second Hospital of Xi’an Jiaotong University, Xi’an Jiaotong University, Xi’an, China
| | - Xinyan Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California,Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Xinhua Song
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Li Che
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Matthias Evert
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Antonio Cossu
- Unit of Pathology, Azienda Ospedaliero Universitaria Sassari, Sassari, Italy
| | - John Gordan
- Department of Medicine, University of California, San Francisco, California
| | - Yong Zeng
- Department of Liver Surgery, Liver Transplantation Division, West China Hospital, Sichuan University, Chengdu, China; Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China.
| | - Xin Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, United States.
| | - Diego F. Calvisi
- Institute of Pathology, University of Greifswald, Greifswald, Germany,Institute of Pathology, University of Regensburg, Regensburg, Germany
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Epigenetic Regulation of p21 cip1/waf1 in Human Cancer. Cancers (Basel) 2019; 11:cancers11091343. [PMID: 31514410 PMCID: PMC6769618 DOI: 10.3390/cancers11091343] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/30/2019] [Accepted: 09/03/2019] [Indexed: 02/07/2023] Open
Abstract
p21cip1/waf1 is a central regulator of cell cycle control and survival. While mutations are rare, it is commonly dysregulated in several human cancers due to epigenetic mechanisms influencing its transcriptional control. These mechanisms include promoter hypermethylation as well as additional pathways such as histone acetylation or methylation. The epigenetic regulators include writers, such as DNA methyltransferases (DNMTs); histone acetyltransferases (HATs) and histone lysine methyltransferases; erasers, such as histone deacetylases (HDACs); histone lysine demethylases [e.g., the Lysine Demethylase (KDM) family]; DNA hydroxylases; readers, such as the methyl-CpG-binding proteins (MBPs); and bromodomain-containing proteins, including the bromo- and extraterminal domain (BET) family. We further discuss the roles that long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play in the epigenetic control of p21cip1/waf1 expression and its function in human cancers.
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50
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Erkes DA, Field CO, Capparelli C, Tiago M, Purwin TJ, Chervoneva I, Berger AC, Hartsough EJ, Villanueva J, Aplin AE. The next-generation BET inhibitor, PLX51107, delays melanoma growth in a CD8-mediated manner. Pigment Cell Melanoma Res 2019; 32:687-696. [PMID: 31063649 PMCID: PMC6697571 DOI: 10.1111/pcmr.12788] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/26/2019] [Accepted: 04/28/2019] [Indexed: 12/30/2022]
Abstract
Epigenetic agents such as bromodomain and extra-terminal region inhibitors (BETi) slow tumor growth via tumor intrinsic alterations; however, their effects on antitumor immunity remain unclear. A recent advance is the development of next-generation BETi that are potent and display a favorable half-life. Here, we tested the BETi, PLX51107, for immune-based effects on tumor growth in BRAF V600E melanoma syngeneic models. PLX51107 delayed melanoma tumor growth and increased activated, proliferating, and functional CD8+ T cells in tumors leading to CD8+ T-cell-mediated tumor growth delay. PLX51107 decreased Cox2 expression, increased dendritic cells, and lowered PD-L1, FasL, and IDO-1 expression in the tumor microenvironment. Importantly, PLX51107 delayed the growth of tumors that progressed on anti-PD-1 therapy; a response associated with decreased Cox2 levels, decreased PD-L1 expression on non-immune cells, and increased intratumoral CD8+ T cells. Thus, next-generation BETi represent a potential first-line and secondary treatment strategy for metastatic melanoma by eliciting effects, at least in part, on antitumor CD8+ T cells.
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Affiliation(s)
- Dan A. Erkes
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Conroy O. Field
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Claudia Capparelli
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Manoela Tiago
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Timothy J. Purwin
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Inna Chervoneva
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Adam C. Berger
- Department of Surgical Oncology, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Edward J. Hartsough
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19107
| | - Jessie Villanueva
- Molecular and Cellular Oncogenesis Program, Melanoma Research Center, The Wistar Institute, PA 19104, USA
| | - Andrew E. Aplin
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
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