101
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Guo P, Chen W, Li H, Li M, Li L. The Histone Acetylation Modifications of Breast Cancer and their Therapeutic Implications. Pathol Oncol Res 2018; 24:807-813. [DOI: 10.1007/s12253-018-0433-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/29/2018] [Indexed: 12/11/2022]
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102
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Zhou R, Wu J, Tang X, Wei X, Ju C, Zhang F, Sun J, Shuai D, Zhang Z, Liu Q, Lv XB. Histone deacetylase inhibitor AR-42 inhibits breast cancer cell growth and demonstrates a synergistic effect in combination with 5-FU. Oncol Lett 2018; 16:1967-1974. [PMID: 30008890 DOI: 10.3892/ol.2018.8854] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 04/06/2018] [Indexed: 12/30/2022] Open
Abstract
AR-42 is a member of a novelly discovered class of phenylbutyrate-derived histone deacetylase inhibitors, and has a number of antitumor effects in a variety of tumor types; however, the role of AR-42 and its possible mechanisms have not been reported in the treatment of breast cancer. The aim of the present study was to investigate the antitumor effects of AR-42 and its associated mechanisms in breast cancer. MTT assays and colony formation assays were conducted to measure the proliferation of MCF-7 cells, and flow cytometry was used to analyze cell apoptosis. The results revealed that AR-42 induced cell apoptosis and suppressed cell growth in a dose- and time-dependent manner. Mechanistically, AR-42 treatment increased the acetylation of the p53 protein and prolonged the half-life of the p53 protein; furthermore, AR-42 treatment upregulated p21 and PUMA expression. Notably, AR-42 had a synergistic effect on MCF-7 cells in combination with fluorouracil, which is one of the most commonly used chemotherapeutic agents. In conclusion, the results indicated that AR-42 inhibits breast cancer cell proliferation and induces apoptosis, indicating that AR-42 is a potential therapeutic agent.
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Affiliation(s)
- Ruihao Zhou
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China.,First Clinical Department, Medical School of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Juan Wu
- Guangzhou Key Laboratory of Translational Medicine on Malignant Tumor Treatment, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510095, P.R. China
| | - Xiaofeng Tang
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Xin Wei
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Cheng Ju
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Feifei Zhang
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Jun Sun
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Deyong Shuai
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Zhiping Zhang
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Qiong Liu
- Department of Cardiovascular Medicine, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiao-Bin Lv
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, The Third Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
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103
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Garmpis N, Damaskos C, Garmpi A, Kalampokas E, Kalampokas T, Spartalis E, Daskalopoulou A, Valsami S, Kontos M, Nonni A, Kontzoglou K, Perrea D, Nikiteas N, Dimitroulis D. Histone Deacetylases as New Therapeutic Targets in Triple-negative Breast Cancer: Progress and Promises. Cancer Genomics Proteomics 2018; 14:299-313. [PMID: 28870998 DOI: 10.21873/cgp.20041] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 02/07/2023] Open
Abstract
Triple-negative breast cancer (TNBC) lacks expression of estrogen receptor (ER), progesterone receptor (PR) and HER2 gene. It comprises approximately 15-20% of breast cancers (BCs). Unfortunately, TNBC's treatment continues to be a clinical problem because of its relatively poor prognosis, its aggressiveness and the lack of targeted therapies, leaving chemotherapy as the mainstay of treatment. It is essential to find new therapies against TNBC, in order to surpass the resistance and the invasiveness of already existing therapies. Given the fact that epigenetic processes control both the initiation and progression of TNBC, there is an increasing interest in the mechanisms, molecules and signaling pathways that participate at the epigenetic modulation of genes expressed in carcinogenesis. The acetylation of histone proteins provokes the transcription of genes involved in cell growth, and the expression of histone deacetylases (HDACs) is frequently up-regulated in many malignancies. Unfortunately, in the field of BC, HDAC inhibitors have shown limited effect as single agents. Nevertheless, their use in combination with kinase inhibitors, autophagy inhibitors, ionizing radiation, or two HDAC inhibitors together is currently being evaluated. HDAC inhibitors such as suberoylanilidehydroxamic acid (SAHA), sodium butyrate, mocetinostat, panobinostat, entinostat, YCW1 and N-(2-hydroxyphenyl)-2-propylpentanamide have shown promising therapeutic outcomes against TNBC, especially when they are used in combination with other anticancer agents. More studies concerning HDAC inhibitors in breast carcinomas along with a more accurate understanding of the TNBC's pathobiology are required for the possible identification of new therapeutic strategies.
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Affiliation(s)
- Nikolaos Garmpis
- Second Department of Propedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Christos Damaskos
- Second Department of Propedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece.,N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Anna Garmpi
- Internal Medicine Department, Laiko General Hospital, University of Athens Medical School, Athens, Greece
| | | | - Theodoros Kalampokas
- Assisted Conception Unit, Second Department of Obstetrics and Gynecology, Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleftherios Spartalis
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Afrodite Daskalopoulou
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Serena Valsami
- Blood Transfusion Department, Aretaieion Hospital, Medical School, National and Kapodistrian Athens University, Athens, Greece
| | - Michael Kontos
- First Department of Surgery, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Afroditi Nonni
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Kontzoglou
- Second Department of Propedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Despina Perrea
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Nikiteas
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Dimitroulis
- Second Department of Propedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
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104
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Yang XF, Zhao ZJ, Liu JJ, Yang XH, Gao Y, Zhao S, Shi S, Huang KQ, Zheng HC. SAHA and/or MG132 reverse the aggressive phenotypes of glioma cells: An in vitro and vivo study. Oncotarget 2018; 8:3156-3169. [PMID: 27911270 PMCID: PMC5356872 DOI: 10.18632/oncotarget.13680] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/15/2016] [Indexed: 11/30/2022] Open
Abstract
To elucidate the anti-tumor effects and molecular mechanisms of SAHA (a histone deacetylase inhibitor) and MG132 (a proteasome inhibitor) on the aggressive phenotypes of glioma cells, we treated U87 and U251 cells with SAHA or/and MG132, and detected phenotypes’ assays with phenotype-related molecules examined. It was found that SAHA or/and MG132 treatment suppressed proliferation in both concentration- and time-dependent manners, inhibited energy metabolism, migration, invasion and lamellipodia formation, and induced G2 arrest and apoptosis in the glioma cells. The treatment with SAHA increased the expression of acetyl-histones 3 and 4, which were recruited to the promoters of p21, p27, Cyclin D1, c-myc and Nanog to down-regulate their transcriptional levels. Expression of acetyl-histones 3 and 4 was higher in gliomas than normal brain tissues. Both drugs’ exposure suppressed tumor growth in nude mice by inducing apoptosis and inhibiting proliferation, but increased serum aminotransferase and creatinine. These results indicated that SAHA and/or MG132 may suppress the aggressive phenotypes of glioma cells. They might be employed to treat the glioma if both hepatic and renal injuries are prevented.
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Affiliation(s)
- Xue-Feng Yang
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Zhi-Juan Zhao
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Jia-Jie Liu
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Xiang-Hong Yang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yang Gao
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Shuang Zhao
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Shuai Shi
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Ke-Qiang Huang
- Department of Stomatology, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Hua-Chuan Zheng
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China.,Life Science Institute of Jinzhou Medical University, Jinzhou 121001, China
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105
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Co-targeting poly(ADP-ribose) polymerase (PARP) and histone deacetylase (HDAC) in triple-negative breast cancer: Higher synergism in BRCA mutated cells. Biomed Pharmacother 2018; 99:543-551. [DOI: 10.1016/j.biopha.2018.01.045] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 12/24/2017] [Accepted: 01/05/2018] [Indexed: 11/18/2022] Open
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106
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Chalakur-Ramireddy NKR, Pakala SB. Combined drug therapeutic strategies for the effective treatment of Triple Negative Breast Cancer. Biosci Rep 2018; 38:BSR20171357. [PMID: 29298879 PMCID: PMC5789156 DOI: 10.1042/bsr20171357] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/12/2017] [Accepted: 01/01/2018] [Indexed: 12/19/2022] Open
Abstract
TNBC (Triple Negative Breast Cancer) is a subtype of breast cancer with an aggressive phenotype which shows high metastatic capability and poor prognosis. Owing to its intrinsic properties like heterogeneity, lack of hormonal receptors and aggressive phenotype leave chemotherapy as a mainstay for the treatment of TNBC. Various studies have demonstrated that chemotherapy alone or therapeutic drugs targeting TNBC pathways, epigenetic mechanisms and immunotherapy alone have not shown significant improvement in TNBC patients. On the other hand, a combination of therapeutic drugs or addition of chemotherapy with therapeutic drugs has shown substantial improvement in results and proven to be an effective strategy for TNBC treatment. This review sheds light on effective combinational drug strategies and current clinical trial status of various combinatorial drugs for the treatment of TNBC.
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Affiliation(s)
| | - Suresh B Pakala
- Biology Division, Indian Institute of Science Education and Research (IISER) Tirupati, Andhra Pradesh, India
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107
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Wang TY, Chai YR, Jia YL, Gao JH, Peng XJ, Han HF. Crosstalk among the proteome, lysine phosphorylation, and acetylation in romidepsin-treated colon cancer cells. Oncotarget 2018; 7:53471-53501. [PMID: 27472459 PMCID: PMC5288200 DOI: 10.18632/oncotarget.10840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 07/17/2016] [Indexed: 01/07/2023] Open
Abstract
Romidepsin (FK228) is one of the most promising histone-deacetylase inhibitors due to its potent antitumor activity, and has been used as a practical option for cancer therapy. However, FK228-induced changes in protein modifications and the crosstalk between different modifications has not been reported. To better understand the underlying mechanisms of FK228-related cancer therapy, we investigated the acetylome, phosphorylation, and crosstalk between modification datasets in colon cancer cells treated with FK228 by using stable-isotope labeling with amino acids in cell culture and affinity enrichment, followed by high-resolution liquid chromatography tandem mass spectrometry analysis. In total, 2728 protein groups, 1175 lysine-acetylation sites, and 4119 lysine-phosphorylation sites were quantified. When the quantification ratio thresholds were set to > 2.0 and < 0.5, respectively, a total of 115 and 38 lysine-acetylation sites in 85 and 32 proteins were quantified as increased and decreased targets, respectively, and 889 and 370 lysine-phosphorylation sites in 599 and 289 proteins were quantified as increased and decreased targets, respectively. Furthermore, we identified 274 proteins exhibiting both acetylation and phosphorylation modifications. These findings indicated possible involvement of these proteins in FK228-related treatment of colon cancer, and provided insight for further analysis of their biological function.
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Affiliation(s)
- Tian-Yun Wang
- Department of Biochemistry and Molecular Biology, Xinxiang Medical University, Henan, 453003, China.,Henan Collaborative Innovation Canter of Molecular Diagnosis and Laboratory Medicine, Xinxiang, Henan, 453003, China
| | - Yu-Rong Chai
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Yan-Long Jia
- Pharmacy Collage, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Jian-Hui Gao
- Henan Collaborative Innovation Canter of Molecular Diagnosis and Laboratory Medicine, Xinxiang, Henan, 453003, China
| | - Xiao-Jun Peng
- Jingjie PTM BioLab (Hangzhou) Co. Ltd, Hangzhou, 310018, China
| | - Hua-Feng Han
- Jingjie PTM BioLab (Hangzhou) Co. Ltd, Hangzhou, 310018, China
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108
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2-Phenylquinazolinones as dual-activity tankyrase-kinase inhibitors. Sci Rep 2018; 8:1680. [PMID: 29374194 PMCID: PMC5785997 DOI: 10.1038/s41598-018-19872-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/09/2018] [Indexed: 12/20/2022] Open
Abstract
Tankyrases (TNKSs) are enzymes specialized in catalyzing poly-ADP-ribosylation of target proteins. Several studies have validated TNKSs as anti-cancer drug targets due to their regulatory role in Wnt/β-catenin pathway. Recently a lot of effort has been put into developing more potent and selective TNKS inhibitors and optimizing them towards anti-cancer agents. We noticed that some 2-phenylquinazolinones (2-PQs) reported as CDK9 inhibitors were similar to previously published TNKS inhibitors. In this study, we profiled this series of 2-PQs against TNKS and selected kinases that are involved in the Wnt/β-catenin pathway. We found that they were much more potent TNKS inhibitors than they were CDK9/kinase inhibitors. We evaluated the compound selectivity to tankyrases over the ARTD enzyme family and solved co-crystal structures of the compounds with TNKS2. Comparative structure-based studies of the catalytic domain of TNKS2 with selected CDK9 inhibitors and docking studies of the inhibitors with two kinases (CDK9 and Akt) revealed important structural features, which could explain the selectivity of the compounds towards either tankyrases or kinases. We also discovered a compound, which was able to inhibit tankyrases, CDK9 and Akt kinases with equal µM potency.
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109
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Yao D, Wang P, Zhang J, Fu L, Ouyang L, Wang J. Deconvoluting the relationships between autophagy and metastasis for potential cancer therapy. Apoptosis 2018; 21:683-98. [PMID: 27003389 DOI: 10.1007/s10495-016-1237-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Autophagy is a highly conserved lysosome-dependent degradation process that may digest some long-lived proteins and damaged organelles. As an essential homeostasis maintaining system in normal cells, autophagy plays a key role in several pathological settings, especially cancer. Metastasis, known as a crucial hallmark of cancer progression, is the primary cause of cancer lethality. The role of autophagy in metastasis is quite complex as supportive evidence has indicated both pro-metastatic and anti-metastatic functions of autophagy. Autophagy can inhibit metastasis by restricting necrosis and mediating autophagic cell death, whereas it may also promote metastasis by enhancing cancer cell fitness in response to stress. Moreover, the function of autophagy is context- and stage-dependent. Specifically, during the early steps of metastasis, autophagy mainly serves as a suppressor, while it plays a pro-metastatic role in the later steps. Here, we focus on highlighting the dual roles of autophagy in metastasis and address the molecular mechanisms involved in this process, which may provide a new insight into cancer biology. While, we also summarize several anti-metastatic agents manipulating autophagy, in the hope of shedding light on exploration of potential novel drugs for future cancer therapy.
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Affiliation(s)
- Dahong Yao
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jin Zhang
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Leilei Fu
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Liang Ouyang
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Jinhui Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
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110
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Targeting the Epigenome as a Novel Therapeutic Approach for Breast Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1026:287-313. [DOI: 10.1007/978-981-10-6020-5_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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111
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Lee A, Djamgoz MBA. Triple negative breast cancer: Emerging therapeutic modalities and novel combination therapies. Cancer Treat Rev 2017; 62:110-122. [PMID: 29202431 DOI: 10.1016/j.ctrv.2017.11.003] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/01/2017] [Accepted: 11/03/2017] [Indexed: 12/11/2022]
Abstract
Triple negative breast cancer (TNBC) is a complex and aggressive subtype of breast cancer which lacks oestrogen receptors, progesterone receptors and HER2 amplification, thereby making it difficult to target therapeutically. In addition, TNBC has the highest rates of metastatic disease and the poorest overall survival of all breast cancer subtypes. Resultantly, development of targeted therapies for TNBC is urgently needed. Recent efforts aimed at molecular characterisation of TNBCs have revealed various emerging therapeutic targets including PARP1, receptor and non-receptor tyrosine kinases, immune-checkpoints, androgen receptor and epigenetic proteins. Key successes include that of the PARP inhibitor, olaparib, which prolonged progression-free survival in a trial of BRCA-mutated breast cancer and for which clinical approval (in this setting) appears imminent. Nevertheless, the heterogeneity of TNBC has limited the clinical benefits of many trialled therapies in 'unselected' patients. Further, drug resistance develops following use of many targeted monotherapies due to upregulation of compensatory signalling pathways. In this review, we evaluate the current status of investigational targeted treatments and present evidence for the role of novel biomarkers and combination therapies in increasing response rates and circumventing drug-induced resistance. Additionally, we discuss promising novel targets in metastatic TNBC identified through preclinical and/or epidemiological studies.
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Affiliation(s)
- Alice Lee
- Faculty of Medicine, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Mustafa B A Djamgoz
- Neuroscience Solution to Cancer Research Group, Department of Life Sciences, Faculty of Natural Sciences, Sir Alexander Fleming Building, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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112
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Hanigan TW, Taha TY, Aboukhatwa SM, Frasor J, Petukhov PA. Scaffold dependent histone deacetylase (HDAC) inhibitor induced re-equilibration of the subcellular localization and post-translational modification state of class I HDACs. PLoS One 2017; 12:e0186620. [PMID: 29045501 PMCID: PMC5646865 DOI: 10.1371/journal.pone.0186620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 10/04/2017] [Indexed: 01/17/2023] Open
Abstract
The mechanism of action of histone deacetylase inhibitors (HDACi) is mainly attributed to the inhibition of the deacetylase catalytic activity for their histone substrates. In this study, we analyzed the abundance of class I HDACs in the cytosolic, nuclear soluble and chromatin bound cellular fractions in breast cancer cells after HDACi treatment. We found that potent N-hydroxy propenamide-based HDACi induced a concentration dependent decrease in the HDAC1 associated with chromatin and a lasting concomitant increase in cytoplasmic HDAC1 while maintaining total protein expression. No such change occurred with HDAC2 or 8, however, an increase in cytoplasmic non-phosphorylated HDAC3 was also observed. The subcellular re-equilibration of HDAC1 was subsequent to the accumulation of acetylated histones and might be cell cycle dependent. This study suggests that the biological activity of a subset of N-hydroxy propenamide-based HDACi may stem from direct competition with histone substrates of HDACs as well as from spatial separation from their substrates in the nucleus and/or change in post-translational modification status of HDACs.
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Affiliation(s)
- Thomas W. Hanigan
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Taha Y. Taha
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Shaimaa M. Aboukhatwa
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Jonna Frasor
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Pavel A. Petukhov
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois, United States of America
- * E-mail:
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113
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Fedele P, Orlando L, Cinieri S. Targeting triple negative breast cancer with histone deacetylase inhibitors. Expert Opin Investig Drugs 2017; 26:1199-1206. [PMID: 28952409 DOI: 10.1080/13543784.2017.1386172] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Triple negative breast cancer (TNBC) is a heterogeneous disease characterized by poor outcomes, higher rates of relapse, lack of biomarkers for rational use of targeted treatments and insensitivity to current available treatments. Histone deacetylase inhibitors (HDACis) perform multiple cytotoxic actions and are emerging as promising multifunctional agents in TNBC. Areas covered: This review focuses on the challenges so far addressed in the targeted treatment of TNBC and explores the various mechanisms by which HDACis control cancer cell growth, tumor progression and metastases. Pivotal preclinical trials on HDACis like panobinostat, vorinostat, and entinostat show that these epigenetic agents exert an anti-proliferative effect on TNBC cells and control tumor growth by multiple mechanisms of action, including apoptosis and regulation of the epithelial to mesenchimal transition (EMT). Combination studies have reported the synergism of HDACis with other anticancer agents. Expert opinion: In recent years, treatment of TNBC has recorded a high number of failures in the development of targeted agents. HDACis alone or in combination strategies show promising activity in TNBC and could have implications for the future targeted treatment of TNBC patients. Future research should identify which agent synergizes better with HDACis and which patient will benefit more from these epigenetic agents.
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Affiliation(s)
- Palma Fedele
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
| | - Laura Orlando
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
| | - Saverio Cinieri
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
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114
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Han H, Li J, Feng X, Zhou H, Guo S, Zhou W. Autophagy-related genes are induced by histone deacetylase inhibitor suberoylanilide hydroxamic acid via the activation of cathepsin B in human breast cancer cells. Oncotarget 2017; 8:53352-53365. [PMID: 28881816 PMCID: PMC5581115 DOI: 10.18632/oncotarget.18410] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 05/10/2017] [Indexed: 01/09/2023] Open
Abstract
Autophagy is involved in modulating tumor cell motility and invasion, resistance to epithelial-to-mesenchymal transition, anoikis, and escape from immune surveillance. We have previous shown that SAHA is capable to induce several apoptosis and autophagy-related gene expression in breast cancers. However, the exact mechanisms of autophagy activation in this context have not been fully identified. Our results showed that the expression and the activity of Cathepsin B (CTSB), one of the major lysosomal cysteine proteases, were significantly increased in MDA-MB- 231 and MCF-7 cells upon SAHA treatment. We confirmed that Cystatin C, a protease inhibitor, significantly inhibited the expression of CTSB induced by SAHA on breast cancer cells. We demonstrated that SAHA is able to promote the expression of LC3II, a key member in the maturation of the autophagosome, the central organelle of autophagy in breast cancer cells. However, SAHA induced LC3II expression is effectively suppressed after the addition of Cystatin C to the cell culture. In addition, we identified a number of genes, as well as the mitogen-activated protein kinase (MAPK) signaling that is potentially involved in the action of SAHA and CTSB in the breast cancer cells. Overall, our results revealed that the autophagy-related genes are induced by SAHA via the activation of CTSB in breast cancer cells. An improved understanding of SAHA molecular mechanisms in breast cancer may facilitate SAHA clinical use and the selection of suitable combinations.
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Affiliation(s)
- Han Han
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
- Department of Biochemistry and Molecular Biology, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
| | - Jing Li
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
| | - Xiuyan Feng
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
- The Second Affiliated Hospital of Shenyang Medical College, Heping, Shenyang City, Liaoning Province 110002, P. R. China
| | - Hui Zhou
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
| | - Shanchun Guo
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA
| | - Weiqiang Zhou
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Huanggu, Shenyang City, Liaoning Province 110034, P. R. China
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Yuan Z, Chen S, Sun Q, Wang N, Li D, Miao S, Gao C, Chen Y, Tan C, Jiang Y. Olaparib hydroxamic acid derivatives as dual PARP and HDAC inhibitors for cancer therapy. Bioorg Med Chem 2017; 25:4100-4109. [DOI: 10.1016/j.bmc.2017.05.058] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 05/17/2017] [Accepted: 05/29/2017] [Indexed: 01/01/2023]
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Du Y, Yamaguchi H, Hsu JL, Hung MC. PARP inhibitors as precision medicine for cancer treatment. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AbstractPersonalized or precision medicine is an emerging treatment approach tailored to individuals or certain groups of patients based on their unique characteristics. These types of therapies guided by biomarkers tend to be more effective than traditional approaches, especially in cancer. The inhibitor against poly (ADP-ribose) polymerase (PARP), olaparib (Lynparza, AstraZeneca), which was approved by the US Food and Drug Administration (FDA) in 2014, demonstrated efficacy specifically for ovarian cancer patients harboring mutations in BRCA genes, which encode proteins in DNA double-strand break repairs. However, the response to PARP inhibitors has been less encouraging in other cancer types that also carry defects in the BRCA genes. Thus, furthering our understanding of the underlying mechanism of PARP inhibitors and resistance is critical to improve their efficacy. In this review, we summarize the results of preclinical studies and the clinical application of PARP inhibitors, and discuss the future direction of PARP inhibitors as a potential marker-guided personalized medicine for cancer treatment.
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Affiliation(s)
- Yi Du
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
| | - Hirohito Yamaguchi
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
| | - Jennifer L. Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung 40402
- Department of Biotechnology, Asia University, Taichung 41354
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung 40402
- Department of Biotechnology, Asia University, Taichung 41354
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Moruno-Manchon JF, Uzor NE, Blasco-Conesa MP, Mannuru S, Putluri N, Furr-Stimming EE, Tsvetkov AS. Inhibiting sphingosine kinase 2 mitigates mutant Huntingtin-induced neurodegeneration in neuron models of Huntington disease. Hum Mol Genet 2017; 26:1305-1317. [PMID: 28175299 PMCID: PMC6251541 DOI: 10.1093/hmg/ddx046] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/20/2017] [Accepted: 02/02/2017] [Indexed: 12/22/2022] Open
Abstract
Huntington disease (HD) is the most common inherited neurodegenerative disorder. It has no cure. The protein huntingtin causes HD, and mutations to it confer toxic functions to the protein that lead to neurodegeneration. Thus, identifying modifiers of mutant huntingtin-mediated neurotoxicity might be a therapeutic strategy for HD. Sphingosine kinases 1 (SK1) and 2 (SK2) synthesize sphingosine-1-phosphate (S1P), a bioactive lipid messenger critically involved in many vital cellular processes, such as cell survival. In the nucleus, SK2 binds to and inhibits histone deacetylases 1 and 2 (HDAC1/2). Inhibiting both HDACs has been suggested as a potential therapy in HD. Here, we found that SK2 is nuclear in primary neurons and, unexpectedly, overexpressed SK2 is neurotoxic in a dose-dependent manner. SK2 promotes DNA double-strand breaks in cultured primary neurons. We also found that SK2 is hyperphosphorylated in the brain samples from a model of HD, the BACHD mice. These data suggest that the SK2 pathway may be a part of a pathogenic pathway in HD. ABC294640, an inhibitor of SK2, reduces DNA damage in neurons and increases survival in two neuron models of HD. Our results identify a novel regulator of mutant huntingtin-mediated neurotoxicity and provide a new target for developing therapies for HD.
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Affiliation(s)
- Jose F. Moruno-Manchon
- Department of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX 77030, USA
| | - Ndidi-Ese Uzor
- Department of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX 77030, USA
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030, USA
| | - Maria P. Blasco-Conesa
- Department of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX 77030, USA
| | - Sishira Mannuru
- The University of Texas Medical Training Program, Houston, TX 77030, USA
| | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Erin E. Furr-Stimming
- Department of Neurology, The University of Texas McGovern Medical School, Houston, TX 77030, USA
| | - Andrey S. Tsvetkov
- Department of Neurobiology and Anatomy, The University of Texas McGovern Medical School, Houston, TX 77030, USA
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030, USA
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Min A, Im SA, Jang H, Kim S, Lee M, Kim DK, Yang Y, Kim HJ, Lee KH, Kim JW, Kim TY, Oh DY, Brown J, Lau A, O'Connor MJ, Bang YJ. AZD6738, A Novel Oral Inhibitor of ATR, Induces Synthetic Lethality with ATM Deficiency in Gastric Cancer Cells. Mol Cancer Ther 2017; 16:566-577. [PMID: 28138034 DOI: 10.1158/1535-7163.mct-16-0378] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/01/2016] [Accepted: 12/08/2016] [Indexed: 11/16/2022]
Abstract
Ataxia telangiectasia and Rad3-related (ATR) can be considered an attractive target for cancer treatment due to its deleterious effect on cancer cells harboring a homologous recombination defect. The aim of this study was to investigate the potential use of the ATR inhibitor, AZD6738, to treat gastric cancer.In SNU-601 cells with dysfunctional ATM, AZD6738 treatment led to an accumulation of DNA damage due to dysfunctional RAD51 foci formation, S phase arrest, and caspase 3-dependent apoptosis. In contrast, SNU-484 cells with functional ATM were not sensitive to AZD6738. Inhibition of ATM in SNU-484 cells enhanced AZD6738 sensitivity to a level comparable with that observed in SNU-601 cells, showing that activation of the ATM-Chk2 signaling pathway attenuates AZD6738 sensitivity. In addition, decreased HDAC1 expression was found to be associated with ATM inactivation in SNU-601 cells, demonstrating the interaction between HDAC1 and ATM can affect sensitivity to AZD6738. Furthermore, in an in vivo tumor xenograft mouse model, AZD6738 significantly suppressed tumor growth and increased apoptosis.These findings suggest synthetic lethality between ATR inhibition and ATM deficiency in gastric cancer cells. Further clinical studies on the interaction between AZD 6738 and ATM deficiency are warranted to develop novel treatment strategies for gastric cancer. Mol Cancer Ther; 16(4); 566-77. ©2017 AACR.
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Affiliation(s)
- Ahrum Min
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Seock-Ah Im
- Cancer Research Institute, Seoul National University, Seoul, Korea.
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hyemin Jang
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Seongyeong Kim
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Miso Lee
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | | | - Yaewon Yang
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hee-Jun Kim
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Department of Internal Medicine, Chung Ang University College of Medicine, Seoul, Korea
| | - Kyung-Hun Lee
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Won Kim
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Tae-Yong Kim
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Do-Youn Oh
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jeff Brown
- AstraZeneca R&D Boston, Waltham, Massachusetts
| | - Alan Lau
- AstraZeneca UK Ltd., Macclesfield, Cheshire, United Kingdom
| | | | - Yung-Jue Bang
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Dréan A, Lord CJ, Ashworth A. PARP inhibitor combination therapy. Crit Rev Oncol Hematol 2016; 108:73-85. [PMID: 27931843 DOI: 10.1016/j.critrevonc.2016.10.010] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 09/02/2016] [Accepted: 10/26/2016] [Indexed: 01/02/2023] Open
Abstract
In 2014, olaparib (Lynparza) became the first PARP (Poly(ADP-ribose) polymerase) inhibitor to be approved for the treatment of cancer. When used as single agents, PARP inhibitors can selectively target tumour cells with BRCA1 or BRCA2 tumour suppressor gene mutations through synthetic lethality. However, PARP inhibition also shows considerable promise when used together with other therapeutic agents. Here, we summarise both the pre-clinical and clinical evidence for the utility of such combinations and discuss the future prospects and challenges for PARP inhibitor combinatorial therapies.
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Affiliation(s)
- Amy Dréan
- The CRUK Gene Function Laboratory, The Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London SW3 6JB, UK
| | - Christopher J Lord
- The CRUK Gene Function Laboratory, The Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London SW3 6JB, UK.
| | - Alan Ashworth
- UCSF Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94158, USA.
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Roos WP, Krumm A. The multifaceted influence of histone deacetylases on DNA damage signalling and DNA repair. Nucleic Acids Res 2016; 44:10017-10030. [PMID: 27738139 PMCID: PMC5137451 DOI: 10.1093/nar/gkw922] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 12/16/2022] Open
Abstract
Histone/protein deacetylases play multiple roles in regulating gene expression and protein activation and stability. Their deregulation during cancer initiation and progression cause resistance to therapy. Here, we review the role of histone deacetylases (HDACs) and the NAD+ dependent sirtuins (SIRTs) in the DNA damage response (DDR). These lysine deacetylases contribute to DNA repair by base excision repair (BER), nucleotide excision repair (NER), mismatch repair (MMR), non-homologous end joining (NHEJ), homologous recombination (HR) and interstrand crosslink (ICL) repair. Furthermore, we discuss possible mechanisms whereby these histone/protein deacetylases facilitate the switch between DNA double-strand break (DSB) repair pathways, how SIRTs play a central role in the crosstalk between DNA repair and cell death pathways due to their dependence on NAD+, and the influence of small molecule HDAC inhibitors (HDACi) on cancer cell resistance to genotoxin based therapies. Throughout the review, we endeavor to identify the specific HDAC targeted by HDACi leading to therapy sensitization.
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Affiliation(s)
- Wynand Paul Roos
- Institute of Toxicology, Medical Center of the University Mainz, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany
| | - Andrea Krumm
- Institute of Toxicology, Medical Center of the University Mainz, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany
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121
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Inhibition of histone deacetylases sensitizes glioblastoma cells to lomustine. Cell Oncol (Dordr) 2016; 40:21-32. [PMID: 27766591 DOI: 10.1007/s13402-016-0301-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2016] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Glioblastoma (GBM) ranks among the deadliest solid cancers worldwide and its prognosis has remained dismal, despite the use of aggressive chemo-irradiation treatment regimens. Limited drug delivery into the brain parenchyma and frequent resistance to currently available therapies are problems that call for a prompt development of novel therapeutic strategies. While only displaying modest efficacies as mono-therapy in pre-clinical settings, histone deacetylase inhibitors (HDACi) have shown promising sensitizing effects to a number of cytotoxic agents. Here, we sought to investigate the sensitizing effect of the HDACi trichostatin A (TSA) to the alkylating agent lomustine (CCNU), which is used in the clinic for the treatment of GBM. METHODS Twelve primary GBM cell cultures grown as neurospheres were used in this study, as well as one established GBM-derived cell line (U87 MG). Histone deacetylase (HDAC) expression levels were determined using quantitative real-time PCR and Western blotting. The efficacy of either CCNU alone or its combination with TSA was assessed using various assays, i.e., cell viability assays (MTT), cell cycle assays (flow cytometry, FACS), double-strand DNA break (DSB) quantification assays (microscopy/immunofluorescence) and expression profiling assays of proteins involved in apoptosis and cell stress (Western blotting and protein array). RESULTS We found that the HDAC1, 3 and 6 expression levels were significantly increased in GBM samples compared to non-neoplastic brain control samples. Additionally, we found that pre-treatment of GBM cells with TSA resulted in an enhancement of their sensitivity to CCNU, possibly via the accumulation of DSBs, decreased cell proliferation and viability rates, and an increased apoptotic rate. CONCLUSION From our data we conclude that the combined administration of TSA and CCNU eradicates GBM cells with a higher efficacy than either drug alone, thereby opening a novel avenue for the treatment of GBM.
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Wu XY, Liu WT, Wu ZF, Chen C, Liu JY, Wu GN, Yao XQ, Liu FK, Li G. Identification of HRAS as cancer-promoting gene in gastric carcinoma cell aggressiveness. Am J Cancer Res 2016; 6:1935-1948. [PMID: 27725900 PMCID: PMC5043104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 06/21/2016] [Indexed: 06/06/2023] Open
Abstract
Gastric carcinoma is one of the most lethal malignancies of cancers and its prognosis remains dismal due to the paucity of effective therapeutic targets. Herein, we showed that HRAS is markedly up-regulated in gastric carcinoma. Prognostic analysis indicated that HRAS expression might be a prognostic indicator for the survival of patients with gastric carcinoma. Ectopic expression of HRAS in gastric carcinoma cells accelerated proliferation, migration, invasion, angiogenesis, and clone formation ability of gastric carcinoma cells in vitro. Furthermore, HRAS over-expressing significantly promoted the tumorigenicity of gastric carcinoma cells in vivo whereas silencing endogenous HRAS caused opposite outcomes. Moreover, we demonstrated that HRAS enhanced gastric carcinoma aggressiveness by activating VEGFA/PI3K/AKT pathway and Raf-1 signaling. Together, our results provide new evidence that HRAS overexpression promotes the progression of gastric carcinoma and might represent a novel therapeutic target for its treatment.
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Affiliation(s)
- Xiao Yu Wu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Wen Tao Liu
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University, Shanghai Institute of Digestive Surgery197 Ruijin 2 Road, Shanghai 200025, China
| | - Zhen Feng Wu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Che Chen
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Jia Yun Liu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Guan Nan Wu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Xue Quan Yao
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Fu Kun Liu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese MedicineNo. 155 Hanzhong Road, Nanjing 210029, Jiangsu, China
| | - Gang Li
- Department of General Surgery, Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of Nanjing Medical UniversityNo. 42 Baiziting, Nanjing 210009, Jiangsu, China
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Abstract
SIGNIFICANCE Breast cancer is a unique disease characterized by heterogeneous cell populations causing roadblocks in therapeutic medicine, owing to its complex etiology and primeval understanding of the biology behind its genesis, progression, and sustenance. Globocan statistics indicate over 1.7 million new breast cancer diagnoses in 2012, accounting for 25% of all cancer morbidities. RECENT ADVANCES Despite these dismal statistics, the introduction of molecular gene signature platforms, progressive therapeutic approaches in diagnosis, and management of breast cancer has led to more effective treatment strategies and control measures concurrent with an equally reassuring decline in the mortality rate. CRITICAL ISSUES However, an enormous body of research in this area is requisite as high mortality associated with metastatic and/or drug refractory tumors continues to present a therapeutic challenge. Despite advances in systemic chemotherapy, the median survival of patients harboring metastatic breast cancers continues to be below 2 years. FUTURE DIRECTIONS Hence, a massive effort to scrutinize and evaluate chemotherapeutics on the basis of the molecular classification of these cancers is undertaken with the objective to devise more attractive and feasible approaches to treat breast cancers and improve patients' quality of life. This review aims to summarize the current understanding of the biology of breast cancer as well as challenges faced in combating breast cancer, with special emphasis on the current battery of treatment strategies. We will also try and gain perspective from recent encounters on novel findings responsible for the progression and metastatic transformation of breast cancer cells in an endeavor to develop more targeted treatment options. Antioxid. Redox Signal. 25, 337-370.
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Affiliation(s)
- Deepika Raman
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Chuan Han Jonathan Foo
- 2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore
| | - Marie-Veronique Clement
- 2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,3 Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Shazib Pervaiz
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,4 National University Cancer Institute , NUHS, Singapore, Singapore .,5 School of Biomedical Sciences, Curtin University , Perth, Australia
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Srinivas C, Swathi V, Priyanka C, Anjana Devi T, Subba Reddy BV, Janaki Ramaiah M, Bhadra U, Bhadra MP. Novel SAHA analogues inhibit HDACs, induce apoptosis and modulate the expression of microRNAs in hepatocellular carcinoma. Apoptosis 2016; 21:1249-1264. [DOI: 10.1007/s10495-016-1278-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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125
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Xu Y, Liu L, Wang Z, Dai Z. Stable and Reusable Electrochemical Biosensor for Poly(ADP-ribose) Polymerase and Its Inhibitor Based on Enzyme-Initiated Auto-PARylation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18669-18674. [PMID: 27367274 DOI: 10.1021/acsami.6b01883] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A stable and reusable electrochemical biosensor for the label-free detection of poly(ADP-ribose) polymerase (PARP) is designed in this work. C-kit-1, a thiol-modified G-quadruplex oligonucleotide, is first self-assembled on a gold electrode surface. The G-quadruplex structure of c-kit-1 can specifically tether and activate PARP, resulting in the generation of negatively charged poly(ADP-ribose) polymer (PAR). On the basis of electrostatic attraction, PAR facilitates the surface accumulation of positively charged electrochemical signal molecules. Through the characterization of electrochemical signal molecules, the label-free quantification of PARP is simply implemented. On the basis of the proposed method, selective quantification of PARP can be achieved over the linear range from 0.01 to 1 U with a calculated detection limit of 0.003U. Further studies also demonstrate the applicability of the proposed method to biosamples revealing the broad potential in practical applications. Furthermore, inhibitor of PARP has also been detected with this biosensor. Meanwhile, benefited from self-assembly on solid surface, this biosensor possesses two important features, i.e., reusability and stability, which are desirable in related biosensors.
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Affiliation(s)
- Yuanyuan Xu
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing, Jiangsu 210095, China
| | - Li Liu
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing, Jiangsu 210023, P. R. China
| | - Zhaoyin Wang
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing, Jiangsu 210023, P. R. China
| | - Zhihui Dai
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing, Jiangsu 210023, P. R. China
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126
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Potential role of targeted therapies in the treatment of triple-negative breast cancer. Anticancer Drugs 2016; 27:147-55. [PMID: 26682525 DOI: 10.1097/cad.0000000000000328] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Breast cancer is the most common cancer type that affects women and is the major cause of morbidity and mortality. Triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype and accounts for 10-20% of all breast cancer cases. TNBC is commonly characterized by the absence of estrogen, progesterone, and the Her2/neu receptor and is usually diagnosed by immunohistochemistry. Mutations in the BRCA1 gene, as well as overexpression of oncogenic kinases, such as human epidermal growth factor receptor 2, vascular endothelial growth factor-A, insulin-like growth factor-1 (IGF-1)/IGF-1 receptor, and transforming growth factor-β1, have been found to be correlated with a higher risk of metastasis and poor overall survival in TNBC patients. The current review briefly discusses the various treatment options including chemotherapeutics and targeted therapies that are available currently for the therapy of TNBC patients and highlights their comparative benefits and disadvantages for clinical application.
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Zhou W, Feng X, Han Han, Guo S, Wang G. Synergistic effects of combined treatment with histone deacetylase inhibitor suberoylanilide hydroxamic acid and TRAIL on human breast cancer cells. Sci Rep 2016; 6:28004. [PMID: 27292433 PMCID: PMC4904277 DOI: 10.1038/srep28004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 05/20/2016] [Indexed: 12/20/2022] Open
Abstract
Previous studies showed that either histone deacetylase (HDAC) inhibitors or tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) can induce apoptosis in tumor cells including breast cancer. However, the underling mechanisms of combining HDAC inhibitors with TRAIL in the treatment of breast cancer are poorly understood. In this study, we determined the ability of SAHA and TRAIL as single agents or in combination to inhibit the growth and survival of MCF-7 and MDA-MB-231 breast cancer cells. Our results demonstrate that the distinct effects of SAHA or TRAIL individually and in combination on the proliferation, cell viability, apoptosis, cell cycle distribution, and morphological changes of MDA-MB-231 and MCF-7 cells. We further determined the different effects of SAHA or TRAIL alone and combining SAHA with TRAIL on the expression of a number of apoptosis-related molecules, cell cycle, growth factors and their receptors in cancer cells. Our results demonstrated that the combinatorial treatment of SAHA and TRAIL may target multiple pathways and serve as an effective therapeutic strategy against breast cancer. An improved understanding of the molecular mechanisms may facilitate either SAHA or TRAIL targeted use and the selection of suitable combinations.
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Affiliation(s)
- Weiqiang Zhou
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146 North Huanghe St, Huanggu Dis, Shenyang City, Liaoning Pro 110034, P. R. China
| | - Xiuyan Feng
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146 North Huanghe St, Huanggu Dis, Shenyang City, Liaoning Pro 110034, P. R. China
- The Second Affiliated Hospital of Shenyang Medical College, No. 20 North 9th St, Heping Dis, Shenyang City, Liaoning Pro 110002, P. R. China
| | - Han Han
- Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146 North Huanghe St, Huanggu Dis, Shenyang City, Liaoning Pro 110034, P. R. China
| | - Shanchun Guo
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA
| | - Guangdi Wang
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA
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Wu G, Wilson G, George J, Liddle C, Hebbard L, Qiao L. Overcoming treatment resistance in cancer: Current understanding and tactics. Cancer Lett 2016; 387:69-76. [PMID: 27089987 DOI: 10.1016/j.canlet.2016.04.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/10/2016] [Accepted: 04/11/2016] [Indexed: 02/06/2023]
Abstract
Chemotherapy is the standard treatment for many, if not all, metastatic cancers. While chemotherapy is often capable of inducing cell death in tumors leading to shrinkage of the tumor bulk, many patients suffer from recurrence and ultimately death due to resistance. During the last decade, treatment resistance has attracted great attention followed by some seminal discoveries, including sequential mutations, cancer stem cells, and bidirectional inter-conversion of stem and non-stem cancer cell populations. Nevertheless, the successful treatment of cancer will require a considerable refinement of our knowledge concerning treatment resistance. In doing so, we expect that a more informed and refined approach to treat cancer will be developed and this may improve prognosis of cancer patients. In this review, we will discuss the current knowledge concerning the failure of cancer treatments and the potential approaches to overcome therapeutic resistance.
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Affiliation(s)
- Guang Wu
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - George Wilson
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Jacob George
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Lionel Hebbard
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia; Department of Molecular and Cell Biology, James Cook University, Townsville, QLD, Australia.
| | - Liang Qiao
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia.
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129
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The levels of HDAC1 and thioredoxin1 are related to the death of mesothelioma cells by suberoylanilide hydroxamic acid. Int J Oncol 2016; 48:2197-204. [DOI: 10.3892/ijo.2016.3402] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 02/11/2016] [Indexed: 11/05/2022] Open
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130
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Rasmussen RD, Gajjar MK, Jensen KE, Hamerlik P. Enhanced efficacy of combined HDAC and PARP targeting in glioblastoma. Mol Oncol 2016; 10:751-63. [PMID: 26794465 DOI: 10.1016/j.molonc.2015.12.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/23/2015] [Accepted: 12/30/2015] [Indexed: 01/07/2023] Open
Abstract
Recent clinical trials have demonstrated that targeting chromatin remodeling factors is as a promising strategy for the treatment of glioblastoma (GBM). We and others have shown constitutive activation of DNA damage response (DDR) pathways in gliomas and suggested that targeting the DDR may improve the currently grim prognosis for patients. Based on our previous findings that inhibition of poly(ADP-ribose) polymerase (PARP) increases radio-sensitivity of the notoriously radio-resistant GBM cells, we hypothesized that epigenetic down-regulation of the DDR responses and induction of oxidative stress via HDAC inhibition would contribute to more efficient targeting of this deadly disease. Our data show that SAHA, an HDAC class I + II inhibitor, in combination with olaparib (PARP inhibitor): i) enhanced inhibition of GBM cell survival, ii) induced apoptosis, and iii) impaired cell cycle progression. These results provide a pre-clinical rationale for combined administration of SAHA and olaparib, which are already individually in clinical trials.
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Affiliation(s)
- Rikke D Rasmussen
- Brain Tumor Biology Group, Danish Cancer Society Research Center, Strandboulevarden 49, 2100-DK, Copenhagen, Denmark
| | - Madhavsai K Gajjar
- Brain Tumor Biology Group, Danish Cancer Society Research Center, Strandboulevarden 49, 2100-DK, Copenhagen, Denmark
| | - Kamilla E Jensen
- Brain Tumor Biology Group, Danish Cancer Society Research Center, Strandboulevarden 49, 2100-DK, Copenhagen, Denmark
| | - Petra Hamerlik
- Brain Tumor Biology Group, Danish Cancer Society Research Center, Strandboulevarden 49, 2100-DK, Copenhagen, Denmark; Department of Radiation Biology, The Finsen Center, Copenhagen University Hospital, Blegdamsvej 9, 2100-DK, Copenhagen, Denmark.
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131
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Wiegmans AP, Yap PY, Ward A, Lim YC, Khanna KK. Differences in Expression of Key DNA Damage Repair Genes after Epigenetic-Induced BRCAness Dictate Synthetic Lethality with PARP1 Inhibition. Mol Cancer Ther 2015; 14:2321-31. [PMID: 26294743 DOI: 10.1158/1535-7163.mct-15-0374] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/03/2015] [Indexed: 11/16/2022]
Abstract
The triple-negative breast cancer (TNBC) subtype represents a cancer that is highly aggressive with poor patient outcome. Current preclinical success has been gained through synthetic lethality, targeting genome instability with PARP inhibition in breast cancer cells that harbor silencing of the homologous recombination (HR) pathway. Histone deacetylase inhibitors (HDACi) are a class of drugs that mediate epigenetic changes in expression of HR pathway genes. Here, we compare the activity of the pan-HDAC inhibitor suberoylanilide hydroxamic acid (SAHA), the class I/IIa HDAC inhibitor valproic acid (VPA), and the HDAC1/2-specific inhibitor romidepsin (ROMI) for their capability to regulate DNA damage repair gene expression and in sensitizing TNBC to PARPi. We found that two of the HDACis tested, SAHA and ROMI, but not VPA, indeed inhibit HR repair and that RAD51, BARD1, and FANCD2 represent key proteins whose inhibition is required for HDACi-mediated therapy with PARP inhibition in TNBC. We also observed that restoration of BRCA1 function stabilizes the genome compared with mutant BRCA1 that results in enhanced polyploid population after combination treatment with HDACi and PARPi. Furthermore, we found that overexpression of the key HR protein RAD51 represents a mechanism for this resistance, promoting aberrant repair and the enhanced polyploidy observed. These findings highlight the key components of HR in guiding synthetic lethality with PARP inhibition and support the rationale for utilizing the novel combination of HDACi and PARPi against TNBC in the clinical setting.
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Affiliation(s)
- Adrian P Wiegmans
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.
| | - Pei-Yi Yap
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Ambber Ward
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Yi Chieh Lim
- Translational Brain Cancer Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kum Kum Khanna
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
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