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Liang X, Cao Y, Duan Z, Wang M, Zhang N, Ding Y, Luo C, Lu N, Chen S. Discovery of new small molecule inhibitors of the BPTF bromodomain. Bioorg Chem 2023; 134:106453. [PMID: 36898211 DOI: 10.1016/j.bioorg.2023.106453] [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: 01/03/2023] [Revised: 02/15/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Chromatin remodeling regulates many basic cellular processes, such as gene transcription, DNA repair, and programmed cell death. As the largest member of nucleosome remodeling factor (NURF), BPTF plays a vital role in the occurrence and development of cancer. Currently, BPTF bromodomain inhibitors are still in development. In this study, by conducting homogenous time-resolved fluorescence resonance energy transfer (HTRF) assay, we identified a potential, novel BPTF inhibitor scaffold Sanguinarine chloride with the IC50 value of 344.2 ± 25.1 nM. Biochemical analysis revealed that compound Sanguinarine chloride exhibited high binding affinity to the BPTF bromodomain. Molecular docking predicted the binding mode of Sanguinarine chloride and elucidated the activities of its derivatives. Moreover, Sanguinarine chloride showed a potent anti-proliferative effect in MIAPaCa-2 cells and inhibited the expression of BPTF target gene c-Myc. Taken together, Sanguinarine chloride provides a qualified chemical tool for developing potent BPTF bromodomain inhibitors.
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Affiliation(s)
- Xiaochen Liang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Cao
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China; The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhe Duan
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Mingchen Wang
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Naixia Zhang
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yiluan Ding
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Cheng Luo
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China; The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Life Science and Technology, Shanghai Tech University, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Na Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Shijie Chen
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Lu T, Lu H, Duan Z, Wang J, Han J, Xiao S, Chen H, Jiang H, Chen Y, Yang F, Li Q, Chen D, Lin J, Li B, Jiang H, Chen K, Lu W, Lin H, Luo C. Discovery of High-Affinity Inhibitors of the BPTF Bromodomain. J Med Chem 2021; 64:12075-12088. [PMID: 34375106 DOI: 10.1021/acs.jmedchem.1c00721] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The dysfunctional bromodomain PHD finger transcription factor (BPTF) exerts a pivotal influence in the occurrence and development of many human diseases, particularly cancers. Herein, through the structural decomposition of the reported BPTF inhibitor TP-238, the effective structural fragments were synthetically modified to obtain our lead compound DC-BPi-03. DC-BPi-03 was identified as a novel BPTF-BRD inhibitor with a moderate potency (IC50 = 698.3 ± 21.0 nM). A structure-guided structure-activity relationship exploration gave rise to two BPTF inhibitors with much higher affinities, DC-BPi-07 and DC-BPi-11. Notably, DC-BPi-07 and DC-BPi-11 show selectivities 100-fold higher than those of other BRD targets. The cocrystal structures of BPTF in complex with DC-BPi-07 and DC-BPi-11 demonstrate the rationale of chemical efforts from the atomic level. Further study showed that DC-BPi-11 significantly inhibited leukemia cell proliferation.
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Affiliation(s)
- Tian Lu
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China.,Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Haibo Lu
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.,The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Zhe Duan
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.,School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Jun Wang
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jie Han
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Senhao Xiao
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - HuanHuan Chen
- Laboratory of Pharmaceutical Analysis, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Hao Jiang
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yu Chen
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Feng Yang
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Qi Li
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Dongying Chen
- Laboratory of Pharmaceutical Analysis, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Jin Lin
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Bo Li
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hualiang Jiang
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Kaixian Chen
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.,The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Wenchao Lu
- Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| | - Hua Lin
- The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.,Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Cheng Luo
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.,School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.,The Chemical Biology Center, Drug Design and Discovery Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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5
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Dar AA, Nosrati M, Bezrookove V, de Semir D, Majid S, Thummala S, Sun V, Tong S, Leong SPL, Minor D, Billings PR, Soroceanu L, Debs R, Miller JR, Sagebiel RW, Kashani-Sabet M. The role of BPTF in melanoma progression and in response to BRAF-targeted therapy. J Natl Cancer Inst 2015; 107:djv034. [PMID: 25713167 PMCID: PMC4555639 DOI: 10.1093/jnci/djv034] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background: Bromodomain PHD finger transcription factor (BPTF) plays an important role in chromatin remodeling, but its functional role in tumor progression is incompletely understood. Here we explore the oncogenic effects of BPTF in melanoma. Methods: The consequences of differential expression of BPTF were explored using shRNA-mediated knockdown in several melanoma cell lines. Immunoblotting was used to assess the expression of various proteins regulated by BPTF. The functional role of BPTF in melanoma progression was investigated using assays of colony formation, invasion, cell cycle, sensitivity to selective BRAF inhibitors, and in xenograft models of melanoma progression (n = 12 mice per group). The biomarker role of BPTF in melanoma progression was assessed using fluorescence in situ hybridization and immunohistochemical analyses. All statistical tests were two-sided. Results: shRNA-mediated BPTF silencing suppressed the proliferative capacity (by 65.5%) and metastatic potential (by 66.4%) of melanoma cells. Elevated BPTF copy number (mean ≥ 3) was observed in 28 of 77 (36.4%) melanomas. BPTF overexpression predicted poor survival in a cohort of 311 melanoma patients (distant metastasis-free survival P = .03, and disease-specific survival P = .008), and promoted resistance to BRAF inhibitors in melanoma cell lines. Metastatic melanoma tumors progressing on BRAF inhibitors contained low BPTF-expressing, apoptotic tumor cell subclones, indicating the continued presence of drug-responsive subclones within tumors demonstrating overall resistance to anti-BRAF agents. Conclusions: These studies demonstrate multiple protumorigenic functions for BPTF and identify it as a novel target for anticancer therapy. They also suggest the combination of BPTF targeting with BRAF inhibitors as a novel therapeutic strategy for melanomas with mutant BRAF.
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Affiliation(s)
- Altaf A Dar
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Mehdi Nosrati
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Vladimir Bezrookove
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - David de Semir
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Shahana Majid
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Suresh Thummala
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Vera Sun
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Schuyler Tong
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Stanley P L Leong
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - David Minor
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Paul R Billings
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Liliana Soroceanu
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Robert Debs
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - James R Miller
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Richard W Sagebiel
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB)
| | - Mohammed Kashani-Sabet
- Center for Melanoma Research and Treatment (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, JRMIII, RWS, MKS), California Pacific Medical Center Research Institute, San Francisco, CA (AAD, MN, VB, DdS, ST, VS, ST, SPLL, DM, LS, RD, JRMIII, RWS, MKS); Department of Urology, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA (SM); Life Technologies, Inc. Carlsbad, CA (PRB).
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