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Shi MQ, Xu Y, Fu X, Pan DS, Lu XP, Xiao Y, Jiang YZ. Advances in targeting histone deacetylase for treatment of solid tumors. J Hematol Oncol 2024; 17:37. [PMID: 38822399 PMCID: PMC11143662 DOI: 10.1186/s13045-024-01551-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/27/2024] [Indexed: 06/03/2024] Open
Abstract
Histone deacetylase (HDAC) serves as a critical molecular regulator in the pathobiology of various malignancies and have garnered attention as a viable target for therapeutic intervention. A variety of HDAC inhibitors (HDACis) have been developed to target HDACs. Many preclinical studies have conclusively demonstrated the antitumor effects of HDACis, whether used as monotherapy or in combination treatments. On this basis, researchers have conducted various clinical studies to evaluate the potential of selective and pan-HDACis in clinical settings. In our work, we extensively summarized and organized current clinical trials, providing a comprehensive overview of the current clinical advancements in targeting HDAC therapy. Furthermore, we engaged in discussions about several clinical trials that did not yield positive outcomes, analyzing the factors that led to their lack of anticipated therapeutic effectiveness. Apart from the experimental design factors, issues such as toxicological side effects, tumor heterogeneity, and unexpected off-target effects also contributed to these less-than-expected results. These challenges have naturally become significant barriers to the application of HDACis. Despite these challenges, we believe that advancements in HDACi research and improvements in combination therapies will pave the way or lead to a broad and hopeful future in the treatment of solid tumors.
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Affiliation(s)
- Mu-Qi Shi
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ying Xu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Xin Fu
- Shenzhen Chipscreen Biosciences Co., Ltd., Shenzhen, 518055, People's Republic of China
| | - De-Si Pan
- Shenzhen Chipscreen Biosciences Co., Ltd., Shenzhen, 518055, People's Republic of China
| | - Xian-Ping Lu
- Shenzhen Chipscreen Biosciences Co., Ltd., Shenzhen, 518055, People's Republic of China
| | - Yi Xiao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Yi-Zhou Jiang
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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Saleh Z, Moccia MC, Ladd Z, Joneja U, Li Y, Spitz F, Hong YK, Gao T. Pancreatic Neuroendocrine Tumors: Signaling Pathways and Epigenetic Regulation. Int J Mol Sci 2024; 25:1331. [PMID: 38279330 PMCID: PMC10816436 DOI: 10.3390/ijms25021331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are characterized by dysregulated signaling pathways that are crucial for tumor formation and progression. The efficacy of traditional therapies is limited, particularly in the treatment of PNETs at an advanced stage. Epigenetic alterations profoundly impact the activity of signaling pathways in cancer development, offering potential opportunities for drug development. There is currently a lack of extensive research on epigenetic regulation in PNETs. To fill this gap, we first summarize major signaling events that are involved in PNET development. Then, we discuss the epigenetic regulation of these signaling pathways in the context of both PNETs and commonly occurring-and therefore more extensively studied-malignancies. Finally, we will offer a perspective on the future research direction of the PNET epigenome and its potential applications in patient care.
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Affiliation(s)
- Zena Saleh
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Matthew C. Moccia
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Zachary Ladd
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Upasana Joneja
- Department of Pathology, Cooper University Health Care, Camden, NJ 08103, USA
| | - Yahui Li
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Francis Spitz
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Young Ki Hong
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
| | - Tao Gao
- Department of Surgery, Cooper University Health Care, Camden, NJ 08103, USA; (Z.S.); (Z.L.)
- Camden Cancer Research Center, Camden, NJ 08103, USA
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3
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Wu Y, Chen S, Yang X, Sato K, Lal P, Wang Y, Shinkle AT, Wendl MC, Primeau TM, Zhao Y, Gould A, Sun H, Mudd JL, Hoog J, Mashl RJ, Wyczalkowski MA, Mo CK, Liu R, Herndon JM, Davies SR, Liu D, Ding X, Evrard YA, Welm BE, Lum D, Koh MY, Welm AL, Chuang JH, Moscow JA, Meric-Bernstam F, Govindan R, Li S, Hsieh J, Fields RC, Lim KH, Ma CX, Zhang H, Ding L, Chen F. Combining the Tyrosine Kinase Inhibitor Cabozantinib and the mTORC1/2 Inhibitor Sapanisertib Blocks ERK Pathway Activity and Suppresses Tumor Growth in Renal Cell Carcinoma. Cancer Res 2023; 83:4161-4178. [PMID: 38098449 PMCID: PMC10722140 DOI: 10.1158/0008-5472.can-23-0604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/17/2023] [Accepted: 09/25/2023] [Indexed: 12/18/2023]
Abstract
Current treatment approaches for renal cell carcinoma (RCC) face challenges in achieving durable tumor responses due to tumor heterogeneity and drug resistance. Combination therapies that leverage tumor molecular profiles could offer an avenue for enhancing treatment efficacy and addressing the limitations of current therapies. To identify effective strategies for treating RCC, we selected ten drugs guided by tumor biology to test in six RCC patient-derived xenograft (PDX) models. The multitargeted tyrosine kinase inhibitor (TKI) cabozantinib and mTORC1/2 inhibitor sapanisertib emerged as the most effective drugs, particularly when combined. The combination demonstrated favorable tolerability and inhibited tumor growth or induced tumor regression in all models, including two from patients who experienced treatment failure with FDA-approved TKI and immunotherapy combinations. In cabozantinib-treated samples, imaging analysis revealed a significant reduction in vascular density, and single-nucleus RNA sequencing (snRNA-seq) analysis indicated a decreased proportion of endothelial cells in the tumors. SnRNA-seq data further identified a tumor subpopulation enriched with cell-cycle activity that exhibited heightened sensitivity to the cabozantinib and sapanisertib combination. Conversely, activation of the epithelial-mesenchymal transition pathway, detected at the protein level, was associated with drug resistance in residual tumors following combination treatment. The combination effectively restrained ERK phosphorylation and reduced expression of ERK downstream transcription factors and their target genes implicated in cell-cycle control and apoptosis. This study highlights the potential of the cabozantinib plus sapanisertib combination as a promising treatment approach for patients with RCC, particularly those whose tumors progressed on immune checkpoint inhibitors and other TKIs. SIGNIFICANCE The molecular-guided therapeutic strategy of combining cabozantinib and sapanisertib restrains ERK activity to effectively suppress growth of renal cell carcinomas, including those unresponsive to immune checkpoint inhibitors.
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Affiliation(s)
- Yige Wu
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Siqi Chen
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Xiaolu Yang
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Kazuhito Sato
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Preet Lal
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Yuefan Wang
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Andrew T. Shinkle
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Michael C. Wendl
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
- McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri
| | - Tina M. Primeau
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Yanyan Zhao
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Alanna Gould
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Hua Sun
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Jacqueline L. Mudd
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Jeremy Hoog
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - R. Jay Mashl
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Matthew A. Wyczalkowski
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Chia-Kuei Mo
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - Ruiyang Liu
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
| | - John M. Herndon
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri
- Department of Surgery, Washington University in St. Louis, St. Louis, Missouri
| | - Sherri R. Davies
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Di Liu
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Xi Ding
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Yvonne A. Evrard
- Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Bryan E. Welm
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - David Lum
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Mei Yee Koh
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Alana L. Welm
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Jeffrey H. Chuang
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut
| | - Jeffrey A. Moscow
- Investigational Drug Branch, National Cancer Institute, Bethesda, Maryland
| | | | - Ramaswamy Govindan
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
| | - Shunqiang Li
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
| | - James Hsieh
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Ryan C. Fields
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
| | - Kian-Huat Lim
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
| | - Cynthia X. Ma
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
| | - Hui Zhang
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Li Ding
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri
| | - Feng Chen
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Genetics, Washington University in St. Louis, St. Louis, Missouri
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Ling R, Wang J, Fang Y, Yu Y, Su Y, Sun W, Li X, Tang X. HDAC-an important target for improving tumor radiotherapy resistance. Front Oncol 2023; 13:1193637. [PMID: 37503317 PMCID: PMC10368992 DOI: 10.3389/fonc.2023.1193637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Radiotherapy is an important means of tumor treatment, but radiotherapy resistance has been a difficult problem in the comprehensive treatment of clinical tumors. The mechanisms of radiotherapy resistance include the repair of sublethal damage and potentially lethal damage of tumor cells, cell repopulation, cell cycle redistribution, and reoxygenation. These processes are closely related to the regulation of epigenetic modifications. Histone deacetylases (HDACs), as important regulators of the epigenetic structure of cancer, are widely involved in the formation of tumor radiotherapy resistance by participating in DNA damage repair, cell cycle regulation, cell apoptosis, and other mechanisms. Although the important role of HDACs and their related inhibitors in tumor therapy has been reviewed, the relationship between HDACs and radiotherapy has not been systematically studied. This article systematically expounds for the first time the specific mechanism by which HDACs promote tumor radiotherapy resistance in vivo and in vitro and the clinical application prospects of HDAC inhibitors, aiming to provide a reference for HDAC-related drug development and guide the future research direction of HDAC inhibitors that improve tumor radiotherapy resistance.
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Affiliation(s)
- Rui Ling
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jingzhi Wang
- Department of Radiotherapy Oncology, Affiliated Yancheng First Hospital of Nanjing University Medical School, First People’s Hospital of Yancheng, Yancheng, China
| | - Yuan Fang
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yunpeng Yu
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yuting Su
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wen Sun
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiaoqin Li
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiang Tang
- Department of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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5
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Xiang Y, Zheng G, Zhong J, Sheng J, Qin H. Advances in Renal Cell Carcinoma Drug Resistance Models. Front Oncol 2022; 12:870396. [PMID: 35619895 PMCID: PMC9128023 DOI: 10.3389/fonc.2022.870396] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/23/2022] [Indexed: 11/13/2022] Open
Abstract
Renal cell carcinoma (RCC) is the most common form of kidney cancer. Systemic therapy is the preferred method to eliminate residual cancer cells after surgery and prolong the survival of patients with inoperable RCC. A variety of molecular targeted and immunological therapies have been developed to improve the survival rate and prognosis of RCC patients based on their chemotherapy-resistant properties. However, owing to tumor heterogeneity and drug resistance, targeted and immunological therapies lack complete and durable anti-tumor responses; therefore, understanding the mechanisms of systemic therapy resistance and improving clinical curative effects in the treatment of RCC remain challenging. In vitro models with traditional RCC cell lines or primary cell culture, as well as in vivo models with cell or patient-derived xenografts, are used to explore the drug resistance mechanisms of RCC and screen new targeted therapeutic drugs. Here, we review the established methods and applications of in vivo and in vitro RCC drug resistance models, with the aim of improving our understanding of its resistance mechanisms, increasing the efficacy of combination medications, and providing a theoretical foundation for the development and application of new drugs, drug screening, and treatment guidelines for RCC patients.
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Affiliation(s)
- Yien Xiang
- Department of Hepatobiliary and Pancreatic Surgery, Second Hospital of Jilin University, Changchun, China
| | - Ge Zheng
- Department of Hepatobiliary and Pancreatic Surgery, Second Hospital of Jilin University, Changchun, China
| | - Jianfeng Zhong
- Department of Clinical Laboratory, Second Hospital of Jilin University, Changchun, China
| | - Jiyao Sheng
- Department of Hepatobiliary and Pancreatic Surgery, Second Hospital of Jilin University, Changchun, China
| | - Hanjiao Qin
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
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Nelson LJ, Castro KE, Xu B, Li J, Dinh NB, Thompson JM, Woytash J, Kipp KR, Razorenova OV. Synthetic lethality of cyclin-dependent kinase inhibitor Dinaciclib with VHL-deficiency allows for selective targeting of clear cell renal cell carcinoma. Cell Cycle 2022; 21:1103-1119. [PMID: 35240916 PMCID: PMC9037521 DOI: 10.1080/15384101.2022.2041783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Clear cell renal cell carcinoma (CC-RCC) remains one of the most deadly forms of kidney cancer despite recent advancements in targeted therapeutics, including tyrosine kinase and immune checkpoint inhibitors. Unfortunately, these therapies have not been able to show better than a 16% complete response rate. In this study we evaluated a cyclin-dependent kinase inhibitor, Dinaciclib, as a potential new targeted therapeutic for CC-RCC. In vitro, Dinaciclib showed anti-proliferative and pro-apoptotic effects on CC-RCC cell lines in Cell Titer Glo, Crystal Violet, FACS-based cell cycle analysis, and TUNEL assays. Additionally, these responses were accompanied by a reduction in phospho-Rb and pro-survival MCL-1 cell signaling responses, as well as the induction of caspase 3 and PARP cleavage. In vivo, Dinaciclib efficiently inhibited primary tumor growth in an orthotopic, patient-derived xenograft-based CC-RCC mouse model. Importantly, Dinaciclib targeted both CD105+ cancer stem cells (CSCs) and CD105− non-CSCs in vivo. Moreover, normal cell lines, as well as a CC-RCC cell line with re-expressed von-Hippel Lindau (VHL) tumor suppressor gene, were protected from Dinaciclib-induced cytotoxicity when not actively dividing, indicating an effective therapeutic window due to synthetic lethality of Dinaciclib treatment with VHL loss. Thus, Dinaciclib represents a novel potential therapeutic for CC-RCC.
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Affiliation(s)
- Luke J Nelson
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Kyleen E Castro
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Binzhi Xu
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Junyi Li
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Nguyen B Dinh
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Jordan M Thompson
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | - Jordan Woytash
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
| | | | - Olga V Razorenova
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
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Markowitsch SD, Vakhrusheva O, Schupp P, Akele Y, Kitanovic J, Slade KS, Efferth T, Thomas A, Tsaur I, Mager R, Haferkamp A, Juengel E. Shikonin Inhibits Cell Growth of Sunitinib-Resistant Renal Cell Carcinoma by Activating the Necrosome Complex and Inhibiting the AKT/mTOR Signaling Pathway. Cancers (Basel) 2022; 14:cancers14051114. [PMID: 35267423 PMCID: PMC8909272 DOI: 10.3390/cancers14051114] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 02/01/2023] Open
Abstract
Therapy resistance remains a major challenge in treating advanced renal cell carcinoma (RCC), making more effective treatment strategies crucial. Shikonin (SHI) from traditional Chinese medicine has exhibited antitumor properties in several tumor entities. We, therefore, currently investigated SHI's impact on progressive growth and metastatic behavior in therapy-sensitive (parental) and therapy-resistant Caki-1, 786-O, KTCTL-26, and A498 RCC cells. Tumor cell growth, proliferation, clonogenic capacity, cell cycle phase distribution, induction of cell death (apoptosis and necroptosis), and the expression and activity of regulating and signaling proteins were evaluated. Moreover, the adhesion and chemotactic activity of the RCC cells after exposure to SHI were investigated. SHI significantly inhibited the growth, proliferation, and clone formation in parental and sunitinib-resistant RCC cells by G2/M phase arrest through down-regulation of cell cycle activating proteins. Furthermore, SHI induced apoptosis and necroptosis by activating necrosome complex proteins. Concomitantly, SHI impaired the AKT/mTOR pathway. Adhesion and motility were cell line specifically affected by SHI. Thus, SHI may hold promise as an additive option in treating patients with advanced and therapy-resistant RCC.
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Affiliation(s)
- Sascha D. Markowitsch
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Olesya Vakhrusheva
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Patricia Schupp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Yasminn Akele
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Jovana Kitanovic
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Kimberly S. Slade
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Thomas Efferth
- Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz, 55128 Mainz, Germany;
| | - Anita Thomas
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Igor Tsaur
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - René Mager
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
| | - Eva Juengel
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (S.D.M.); (O.V.); (P.S.); (Y.A.); (J.K.); (K.S.S.); (A.T.); (I.T.); (R.M.); (A.H.)
- Correspondence: ; Tel.: +49-6131-17-5433; Fax: +49-6131-17-4410
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Investigation of Decitabine Effects on HDAC3 and HDAC7 mRNA Expression in NALM-6 and HL-60 Cancer Cell Lines. Rep Biochem Mol Biol 2022; 10:420-428. [PMID: 34981019 DOI: 10.52547/rbmb.10.3.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/06/2021] [Indexed: 11/18/2022]
Abstract
Background Decitabine is a potent anticancer hypomethylating agent and changes the gene expression through the gene's promoter demethylation and also independently from DNA demethylation. So, the present study was designed to distinguish whether Decitabine, in addition to inhibitory effects on DNA methyltransferase, can change HDAC3 and HDAC7 mRNA expression in NALM-6 and HL-60 cancer cell lines. Methods HL-60, NALM-6, and normal cells were cultured, and the Decitabine treatment dose was obtained (1 µM) through the MTT assay. Finally, HDAC3 and HDAC7 mRNA expression were measured by Real-Time PCR in HL-60 and NALM-6 cancerous cells before and after treatment. Furthermore, HDAC3 and HDAC7 mRNA expression in untreated HL-60 and NALM-6 cancerous cells were compared to normal cells. Results Our results revealed that the expression of HDAC3 and HDAC7 in HL-60 and NALM-6 cells increases as compared to normal cells. After treatment of HL-60 and NALM-6 cells with Decitabine, HDAC3, and HDAC7 mRNA expression were decreased significantly. Conclusion Our data confirmed that the effects of Decitabine are not limited to direct hypomethylation of DNMTs, but it can indirectly affect other epigenetic factors, such as HDACs activity, through converging pathways.
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9
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Chen J, Ren JJ, Cai J, Wang X. Efficacy and safety of HDACIs in the treatment of metastatic or unresectable renal cell carcinoma with a clear cell phenotype: A systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e26788. [PMID: 34397830 PMCID: PMC8341361 DOI: 10.1097/md.0000000000026788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/30/2021] [Accepted: 07/10/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND In this study, we evaluated the efficacy and safety of histone deacetylase inhibitors (HDACIs) in the treatment of renal cell carcinoma (RCC). METHODS PubMed, EMBASE, the Cochrane Library, CNKI, and the Wanfang database were searched to retrieve studies describing the use of HDACIs for the treatment of RCC published between January 1, 2009, and January 1, 2021. Relevant studies were selected, and data were extracted. Then, a meta-analysis was performed using R 3.5.2 software. RESULTS The results showed that the objective response rate (ORR) of HDACIs used to treat RCC was 26% [95% confidence interval (95% CI): 0.19∼0.34] and that the 1-year progression-free survival (PFS) rate was 29% (95% CI: 0.14∼0.59). The ORR and PFS rate of the combination group were better than those of the monotherapy group, and the ORR and PFS rate of the selective HDACI group were better than those of the pan-HDACI group. The incidences of neutropenia and thrombocytopenia were higher and the incidence of fatigue was lower in the selective HDACI group than in the pan-HDACI group. CONCLUSION This study initially confirmed the efficacy and safety of HDACIs for the treatment of RCC. Due to the limitations of the included studies, more high-quality studies are needed to validate the conclusions.
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Affiliation(s)
- Juan Chen
- Department of Pharmacy, Sanya Central Hospital, Sanya, Hainan, China
| | - Jia-Ju Ren
- School of Nursing, Beijing University of Chinese Medicine, Beijing, China
| | - Jiangxia Cai
- Department of Pharmacy, Bazhou People's Hospital, Korla, Xinjiang, China
| | - Xiaoli Wang
- Department of Pharmacy, Sanya Central Hospital, Sanya, Hainan, China
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10
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Cheng F, Zheng B, Wang J, Zhao G, Yao Z, Niu Z, He W. Comprehensive analysis of a new prognosis signature based on histone deacetylases in clear cell renal cell carcinoma. Cancer Med 2021; 10:6503-6514. [PMID: 34308568 PMCID: PMC8446567 DOI: 10.1002/cam4.4156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/27/2021] [Accepted: 07/05/2021] [Indexed: 12/17/2022] Open
Abstract
Histone deacetylases (HDAC) family is vital for tumorigenesis and tumor progression. However, the exact role of the HDAC family in clear cell renal cell carcinoma (ccRCC) remains unclear. Based on The Cancer Genome Atlas (TCGA), International Cancer Genome Consortium (ICGC), and The Human Protein Atlas (HPA) database, we investigated and validated the expression profile, clinical significance and prognostic value of HDAC family members in ccRCC. Moreover, we further explored the correlation between HDACs and tumor microenvironment, tumor stemness, drug activity and immune subtype. The HDAC8, HDAC10, and HDAC11 manifested potential clinical value for prognosis, and the correlation analyses reveals underlying molecular mechanisms, which deserve further investigation for ccRCC. This Integrated bioinformatics analysis, based on transcriptomics and proteomics, implied that HDAC8, HDAC10, and HDAC11 may serve as potential molecular biomarkers and therapeutic targets for ccRCC, but some underlying molecular mechanisms still need to be elucidated.
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Affiliation(s)
- Fajuan Cheng
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Bin Zheng
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
| | - Jianwei Wang
- Department of Urology, Shandong Provincial ENT Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
| | - Guiting Zhao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
| | - Zhongshun Yao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
| | - Zhihong Niu
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
| | - Wei He
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China
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11
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Markowitsch SD, Schupp P, Lauckner J, Vakhrusheva O, Slade KS, Mager R, Efferth T, Haferkamp A, Juengel E. Artesunate Inhibits Growth of Sunitinib-Resistant Renal Cell Carcinoma Cells through Cell Cycle Arrest and Induction of Ferroptosis. Cancers (Basel) 2020; 12:cancers12113150. [PMID: 33121039 PMCID: PMC7692972 DOI: 10.3390/cancers12113150] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/22/2020] [Accepted: 10/24/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Renal cell carcinoma (RCC) is the most common kidney malignancy. Due to development of therapy resistance, efficacy of conventional drugs such as sunitinib is limited. Artesunate (ART), a drug originating from Traditional Chinese Medicine, has exhibited anti-tumor effects in several non-urologic tumors. ART inhibited growth, reduced metastatic properties, and curtailed metabolism in sunitinib-sensitive and sunitinib–resistant RCC cells. In three of four tested cell lines, ART’s growth inhibitory effects were accompanied by cell cycle arrest and modulation of cell cycle regulating proteins. In a fourth cell line, KTCTL-26, ART evoked ferroptosis, an iron-dependent cell death, and exhibited stronger anti-tumor effects than in the other cell lines. The regulatory protein, p53, was only detectable in the KTCTL-26 cells, possibly making p53 a predictive marker of cancer that may respond better to ART. ART, therefore, may hold promise as an additive therapy option for selected patients with advanced or therapy-resistant RCC. Abstract Although innovative therapeutic concepts have led to better treatment of advanced renal cell carcinoma (RCC), efficacy is still limited due to the tumor developing resistance to applied drugs. Artesunate (ART) has demonstrated anti-tumor effects in different tumor entities. This study was designed to investigate the impact of ART (1–100 µM) on the sunitinib-resistant RCC cell lines, Caki-1, 786-O, KTCTL26, and A-498. Therapy-sensitive (parental) and untreated cells served as controls. ART’s impact on tumor cell growth, proliferation, clonogenic growth, apoptosis, necrosis, ferroptosis, and metabolic activity was evaluated. Cell cycle distribution, the expression of cell cycle regulating proteins, p53, and the occurrence of reactive oxygen species (ROS) were investigated. ART significantly increased cytotoxicity and inhibited proliferation and clonogenic growth in both parental and sunitinib-resistant RCC cells. In Caki-1, 786-O, and A-498 cell lines growth inhibition was associated with G0/G1 phase arrest and distinct modulation of cell cycle regulating proteins. KTCTL-26 cells were mainly affected by ART through ROS generation, ferroptosis, and decreased metabolism. p53 exclusively appeared in the KTCTL-26 cells, indicating that p53 might be predictive for ART-dependent ferroptosis. Thus, ART may hold promise for treating selected patients with advanced and even therapy-resistant RCC.
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Affiliation(s)
- Sascha D. Markowitsch
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Patricia Schupp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Julia Lauckner
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Olesya Vakhrusheva
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Kimberly S. Slade
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - René Mager
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Thomas Efferth
- Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz, Staudingerweg 5, 55128 Mainz, Germany;
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
| | - Eva Juengel
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (S.D.M.); (P.S.); (J.L.); (O.V.); (K.S.S.); (R.M.); (A.H.)
- Correspondence: ; Tel.: +49-631-175-433; Fax: +49-6131-174-410
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12
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Bladder Cancer Metastasis Induced by Chronic Everolimus Application Can Be Counteracted by Sulforaphane In Vitro. Int J Mol Sci 2020; 21:ijms21155582. [PMID: 32759798 PMCID: PMC7432076 DOI: 10.3390/ijms21155582] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic treatment with the mTOR inhibitor, everolimus, fails long-term in preventing tumor growth and dissemination in cancer patients. Thus, patients experiencing treatment resistance seek complementary measures, hoping to improve therapeutic efficacy. This study investigated metastatic characteristics of bladder carcinoma cells exposed to everolimus combined with the isothiocyanate sulforaphane (SFN), which has been shown to exert cancer inhibiting properties. RT112, UMUC3, or TCCSUP bladder carcinoma cells were exposed short- (24 h) or long-term (8 weeks) to everolimus (0.5 nM) or SFN (2.5 µM), alone or in combination. Adhesion and chemotaxis along with profiling details of CD44 receptor variants (v) and integrin α and β subtypes were evaluated. The functional impact of CD44 and integrins was explored by blocking studies and siRNA knock-down. Long-term exposure to everolimus enhanced chemotactic activity, whereas long-term exposure to SFN or the SFN-everolimus combination diminished chemotaxis. CD44v4 and v7 increased on RT112 cells following exposure to SFN or SFN-everolimus. Up-regulation of the integrins α6, αV, and β1 and down-regulation of β4 that was present with everolimus alone could be prevented by combining SFN and everolimus. Down-regulation of αV, β1, and β4 reduced chemotactic activity, whereas knock-down of CD44 correlated with enhanced chemotaxis. SFN could, therefore, inhibit resistance-related tumor dissemination during everolimus-based bladder cancer treatment.
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13
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Chronic Sulforaphane Administration Inhibits Resistance to the mTOR-Inhibitor Everolimus in Bladder Cancer Cells. Int J Mol Sci 2020; 21:ijms21114026. [PMID: 32512849 PMCID: PMC7312500 DOI: 10.3390/ijms21114026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/28/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023] Open
Abstract
Progressive bladder cancer growth is associated with abnormal activation of the mammalian target of the rapamycin (mTOR) pathway, but treatment with an mTOR inhibitor has not been as effective as expected. Rather, resistance develops under chronic drug use, prompting many patients to lower their relapse risk by turning to natural, plant-derived products. The present study was designed to evaluate whether the natural compound, sulforaphane (SFN), combined with the mTOR inhibitor everolimus, could block the growth and proliferation of bladder cancer cells in the short- and long-term. The bladder cancer cell lines RT112, UMUC3, and TCCSUP were exposed short- (24 h) or long-term (8 weeks) to everolimus (0.5 nM) or SFN (2.5 µM) alone or in combination. Cell growth, proliferation, apoptosis, cell cycle progression, and cell cycle regulating proteins were evaluated. siRNA blockade was used to investigate the functional impact of the proteins. Short-term application of SFN and/or everolimus resulted in significant tumor growth suppression, with additive inhibition on clonogenic tumor growth. Long-term everolimus treatment resulted in resistance development characterized by continued growth, and was associated with elevated Akt-mTOR signaling and cyclin-dependent kinase (CDK)1 phosphorylation and down-regulation of p19 and p27. In contrast, SFN alone or SFN+everolimus reduced cell growth and proliferation. Akt and Rictor signaling remained low, and p19 and p27 expressions were high under combined drug treatment. Long-term exposure to SFN+everolimus also induced acetylation of the H3 and H4 histones. Phosphorylation of CDK1 was diminished, whereby down-regulation of CDK1 and its binding partner, Cyclin B, inhibited tumor growth. In conclusion, the addition of SFN to the long-term everolimus application inhibits resistance development in bladder cancer cells in vitro. Therefore, sulforaphane may hold potential for treating bladder carcinoma in patients with resistance to an mTOR inhibitor.
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14
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Histone deacetylase inhibitors dysregulate DNA repair proteins and antagonize metastasis-associated processes. J Cancer Res Clin Oncol 2020; 146:343-356. [PMID: 31932908 PMCID: PMC6985217 DOI: 10.1007/s00432-019-03118-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023]
Abstract
Purpose We set out to determine whether clinically tested epigenetic drugs against class I histone deacetylases (HDACs) affect hallmarks of the metastatic process. Methods We treated permanent and primary renal, lung, and breast cancer cells with the class I histone deacetylase inhibitors (HDACi) entinostat (MS-275) and valproic acid (VPA), the replicative stress inducer hydroxyurea (HU), the DNA-damaging agent cis-platinum (L-OHP), and the cytokine transforming growth factor-β (TGFβ). We used proteomics, quantitative PCR, immunoblot, single cell DNA damage assays, and flow cytometry to analyze cell fate after drug exposure. Results We show that HDACi interfere with DNA repair protein expression and trigger DNA damage and apoptosis alone and in combination with established chemotherapeutics. Furthermore, HDACi disrupt the balance of cell adhesion protein expression and abrogate TGFβ-induced cellular plasticity of transformed cells. Conclusion HDACi suppress the epithelial–mesenchymal transition (EMT) and compromise the DNA integrity of cancer cells. These data encourage further testing of HDACi against tumor cells. Electronic supplementary material The online version of this article (10.1007/s00432-019-03118-4) contains supplementary material, which is available to authorized users.
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15
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Beider K, Bitner H, Voevoda-Dimenshtein V, Rosenberg E, Sirovsky Y, Magen H, Canaani J, Ostrovsky O, Shilo N, Shimoni A, Abraham M, Weiss L, Milyavsky M, Peled A, Nagler A. The mTOR inhibitor everolimus overcomes CXCR4-mediated resistance to histone deacetylase inhibitor panobinostat through inhibition of p21 and mitotic regulators. Biochem Pharmacol 2019; 168:412-428. [PMID: 31325448 DOI: 10.1016/j.bcp.2019.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022]
Abstract
Although having promising anti-myeloma properties, the pan-histone deacetylase inhibitor (HDACi) panobinostat lacks therapeutic activity as a single agent. The aim of the current study was to elucidate the mechanisms underlying multiple myeloma (MM) resistance to panobinostat monotherapy and to define strategies to overcome it. Sensitivity of MM cell lines and primary CD138+ cells from MM patients to panobinostat correlated with reduced expression of the chemokine receptor CXCR4, whereas overexpression of CXCR4 in MM cell lines increased their resistance to panobinostat. Decreased sensitivity to HDACi was associated with reversible G0/G1 cell growth arrest while response was characterized by apoptotic cell death. Analysis of intra-cellular signaling mediators revealed the pro-survival mTOR pathway to be regulated by CXCR4 overexpression. Combining panobinostat with mTOR inhibitor everolimus abrogated the resistance to HDACi and induced synergistic cell death. The combination of panobinostat/everolimus resulted in sustained DNA damage and irreversible suppression of proliferation accompanied by robust apoptosis. Gene expression analysis revealed distinct genetic profiles of single versus combined agent exposure. Whereas panobinostat increased the expression of the cell cycle inhibitor p21, co-treatment with everolimus abrogated the increase in p21 and synergistically downregulated the expression of DNA repair genes and mitotic checkpoint regulators. Importantly, the combination of panobinostat with everolimus effectively targeted CXCR4-expressing resistant MM cells in vivo in the BM niche. In summary, our results uncover the mechanism responsible for the strong synergistic anti-MM activity of dual HDAC and mTOR inhibition and provide the rationale for a novel potential therapeutic approach to treat MM.
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Affiliation(s)
- Katia Beider
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Hanna Bitner
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Valeria Voevoda-Dimenshtein
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Evgenia Rosenberg
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Yaarit Sirovsky
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Hila Magen
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Jonathan Canaani
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Olga Ostrovsky
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Noya Shilo
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Avichai Shimoni
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel
| | - Michal Abraham
- Goldyne Savad Institute of Gene Therapy, Hebrew University Hospital, Jerusalem, Israel
| | - Lola Weiss
- Goldyne Savad Institute of Gene Therapy, Hebrew University Hospital, Jerusalem, Israel
| | - Michael Milyavsky
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amnon Peled
- Goldyne Savad Institute of Gene Therapy, Hebrew University Hospital, Jerusalem, Israel
| | - Arnon Nagler
- Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Tel Aviv University, Israel.
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Juengel E, Natsheh I, Najafi R, Rutz J, Tsaur I, Haferkamp A, Chun FKH, Blaheta RA. Mechanisms behind Temsirolimus Resistance Causing Reactivated Growth and Invasive Behavior of Bladder Cancer Cells In Vitro. Cancers (Basel) 2019; 11:cancers11060777. [PMID: 31167517 PMCID: PMC6627393 DOI: 10.3390/cancers11060777] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/22/2022] Open
Abstract
Background: Although mechanistic target of rapamycin (mTOR) inhibitors, such as temsirolimus, show promise in treating bladder cancer, acquired resistance often hampers efficacy. This study evaluates mechanisms leading to resistance. Methods: Cell growth, proliferation, cell cycle phases, and cell cycle regulating proteins were compared in temsirolimus resistant (res) and sensitive (parental—par) RT112 and UMUC3 bladder cancer cells. To evaluate invasive behavior, adhesion to vascular endothelium or to immobilized extracellular matrix proteins and chemotactic activity were examined. Integrin α and β subtypes were analyzed and blocking was done to evaluate physiologic integrin relevance. Results: Growth of RT112res could no longer be restrained by temsirolimus and was even enhanced in UMUC3res, accompanied by accumulation in the S- and G2/M-phase. Proteins of the cdk-cyclin and Akt-mTOR axis increased, whereas p19, p27, p53, and p73 decreased in resistant cells treated with low-dosed temsirolimus. Chemotactic activity of RT112res/UMUC3res was elevated following temsirolimus re-exposure, along with significant integrin α2, α3, and β1 alterations. Blocking revealed a functional switch of the integrins, driving the resistant cells from being adhesive to being highly motile. Conclusion: Temsirolimus resistance is associated with reactivation of bladder cancer growth and invasive behavior. The α2, α3, and β1 integrins could be attractive treatment targets to hinder temsirolimus resistance.
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Affiliation(s)
- Eva Juengel
- Department of Urology, Goethe University Hospital, 60590 Frankfurt am Main, Germany.
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstr. 1, 55131 Mainz, Germany.
| | - Iyad Natsheh
- Department of Allied Medical Sciences, Zarqa University College, Al-Balqa Applied University, Salt 13110, Jordan.
| | - Ramin Najafi
- Department of Urology, Goethe University Hospital, 60590 Frankfurt am Main, Germany.
| | - Jochen Rutz
- Department of Urology, Goethe University Hospital, 60590 Frankfurt am Main, Germany.
| | - Igor Tsaur
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstr. 1, 55131 Mainz, Germany.
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, Langenbeckstr. 1, 55131 Mainz, Germany.
| | - Felix K-H Chun
- Department of Urology, Goethe University Hospital, 60590 Frankfurt am Main, Germany.
| | - Roman A Blaheta
- Department of Urology, Goethe University Hospital, 60590 Frankfurt am Main, Germany.
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Makarević J, Rutz J, Juengel E, Maxeiner S, Tsaur I, Chun FKH, Bereiter-Hahn J, Blaheta RA. Influence of the HDAC Inhibitor Valproic Acid on the Growth and Proliferation of Temsirolimus-Resistant Prostate Cancer Cells In Vitro. Cancers (Basel) 2019; 11:cancers11040566. [PMID: 31010254 PMCID: PMC6520872 DOI: 10.3390/cancers11040566] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/16/2019] [Indexed: 12/18/2022] Open
Abstract
The mechanistic target of rapamycin (mTOR) is elevated in prostate cancer, making this protein attractive for tumor treatment. Unfortunately, resistance towards mTOR inhibitors develops and the tumor becomes reactivated. We determined whether epigenetic modulation by the histone deacetylase (HDAC) inhibitor, valproic acid (VPA), may counteract non-responsiveness to the mTOR inhibitor, temsirolimus, in prostate cancer (PCa) cells. Prostate cancer cells, sensitive (parental) and resistant to temsirolimus, were exposed to VPA, and tumor cell growth behavior compared. Temsirolimus resistance enhanced the number of tumor cells in the G2/M-phase, correlating with elevated cell proliferation and clonal growth. The cell cycling proteins cdk1 and cyclin B, along with Akt-mTOR signaling increased, whereas p19, p21 and p27 decreased, compared to the parental cells. VPA significantly reduced cell growth and up-regulated the acetylated histones H3 and H4. Cdk1 and cyclin B decreased, as did phosphorylated mTOR and the mTOR sub-complex Raptor. The mTOR sub-member Rictor and phosphorylated Akt increased under VPA. Knockdown of cdk1, cyclin B, or Raptor led to significant cell growth reduction. HDAC inhibition through VPA counteracts temsirolimus resistance, probably by down-regulating cdk1, cyclin B and Raptor. Enhanced Rictor and Akt, however, may represent an undesired feedback loop, which should be considered when designing future therapeutic regimens.
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Affiliation(s)
- Jasmina Makarević
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Jochen Rutz
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Eva Juengel
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Sebastian Maxeiner
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Igor Tsaur
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Felix K-H Chun
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Jürgen Bereiter-Hahn
- Institute for Cell Biology and Neurosciences, Goethe-University, D-60590 Frankfurt am Main, Germany.
| | - Roman A Blaheta
- Department of Urology, Goethe-University, D-60590 Frankfurt am Main, Germany.
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18
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Antonaci G, Cossa LG, Muscella A, Vetrugno C, De Pascali SA, Fanizzi FP, Marsigliante S. [Pt( O,O'-acac)(γ-acac)(DMS)] Induces Autophagy in Caki-1 Renal Cancer Cells. Biomolecules 2019; 9:biom9030092. [PMID: 30845773 PMCID: PMC6468382 DOI: 10.3390/biom9030092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/23/2019] [Accepted: 02/26/2019] [Indexed: 01/12/2023] Open
Abstract
We have demonstrated the cytotoxic effects of [Pt(O,O′-acac)(γ-acac)(dimethyl sulfide (DMS))] on various immortalized cell lines, in primary cultures, and in murine xenograft models in vivo. Recently, we also showed that [Pt(O,O′-acac)(γ-acac)(DMS)] is able to kill Caki-1 renal cells both in vivo and in vitro. In the present paper, apoptotic and autophagic effects of [Pt(O,O′-acac)(γ-acac)(DMS)] and cisplatin were studied and compared using Caki-1 cancerous renal cells. The effects of cisplatin include activation of caspases, proteolysis of enzyme poly ADP ribose polymerase (PARP), control of apoptosis modulators B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), and BH3-interacting domain death agonist (Bid), and cell cycle arrest in G2/M phase. Conversely, [Pt(O,O′-acac)(γ-acac)(DMS)] did not induce caspase activation, nor chromatin condensation or DNA fragmentation. The effects of [Pt(O,O′-acac)(γ-acac)(DMS)] include microtubule-associated proteins 1A/1B light chain 3B (LC3)-I to LC3-II conversion, Beclin-1 and Atg-3, -4, and -5 increase, Bcl-2 decrease, and monodansylcadaverine accumulation in autophagic vacuoles. [Pt(O,O′-acac)(γ-acac)(DMS)] also modulated various kinases involved in intracellular transduction regulating cell fate. [Pt(O,O′-acac)(γ-acac)(DMS)] inhibited the phosphorylation of mammalian target of rapmycin (mTOR), p70S6K, and AKT, and increased the phosphorylation of c-Jun N-terminal kinase (JNK1/2), a kinase activity pattern consistent with autophagy induction. In conclusion, while in past reports the high cytotoxicity of [Pt(O,O′-acac)(γ-acac)(DMS)] was always attributed to its ability to trigger an apoptotic process, in this paper we show that Caki-1 cells die as a result of the induction of a strong autophagic process.
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Affiliation(s)
- Giovanna Antonaci
- Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Luca Giulio Cossa
- Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Antonella Muscella
- Laboratory of Cell Pathology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Carla Vetrugno
- Laboratory of Cell Pathology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Sandra Angelica De Pascali
- Laboratory of General Inorganic Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Francesco Paolo Fanizzi
- Laboratory of General Inorganic Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
| | - Santo Marsigliante
- Laboratory of Cell Physiology, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy.
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19
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Beyens M, Vandamme T, Peeters M, Van Camp G, Op de Beeck K. Resistance to targeted treatment of gastroenteropancreatic neuroendocrine tumors. Endocr Relat Cancer 2019; 26:R109-R130. [PMID: 32022503 DOI: 10.1530/erc-18-0420] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The mammalian target of rapamycin (mTOR) is part of the phosphoinositide-3-kinase (PI3K)/protein kinase B (Akt)/mTOR signaling. The PI3K/Akt/mTOR pathway has a pivotal role in the oncogenesis of neuroendocrine tumors (NETs). In addition, vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) drive angiogenesis in NETs and therefore contributes to neuroendocrine tumor development. Hence, mTOR and angiogenesis inhibitors have been developed. Everolimus, a first-generation mTOR inhibitor, has shown significant survival benefit in advanced gastroenteropancreatic NETs. Sunitinib, a pan-tyrosine kinase inhibitor that targets the VEGF receptor, has proven to increase progression-free survival in advanced pancreatic NETs. Nevertheless, primary and acquired resistance to rapalogs and sunitinib has limited the clinical benefit for NET patients. Despite the identification of multiple molecular mechanisms of resistance, no predictive biomarker has made it to the clinic. This review is focused on the mTOR signaling and angiogenesis in NET, the molecular mechanisms of primary and acquired resistance to everolimus and sunitinib and how to overcome this resistance by alternative drug compounds.
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Affiliation(s)
- Matthias Beyens
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
- Center for Oncological Research, University of Antwerp, Antwerp, Belgium
| | - Timon Vandamme
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
- Center for Oncological Research, University of Antwerp, Antwerp, Belgium
- Section of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Marc Peeters
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Guy Van Camp
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
- Center for Oncological Research, University of Antwerp, Antwerp, Belgium
| | - Ken Op de Beeck
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
- Center for Oncological Research, University of Antwerp, Antwerp, Belgium
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20
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Nayman AH, Siginc H, Zemheri E, Yencilek F, Yildirim A, Telci D. Dual-Inhibition of mTOR and Bcl-2 Enhances the Anti-tumor Effect of Everolimus against Renal Cell Carcinoma In Vitro and In Vivo. J Cancer 2019; 10:1466-1478. [PMID: 31031856 PMCID: PMC6485234 DOI: 10.7150/jca.29192] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/03/2019] [Indexed: 12/14/2022] Open
Abstract
Renal cell carcinoma (RCC) is the predominant type of kidney cancer. Mammalian target of rapamycin (mTOR) inhibitor everolimus is currently used as a second-line therapy for sorafenib or sunitinib-refractory metastatic RCC patients. The clinical limitation confronted during everolimus therapy is the onset of drug resistance that decreases the efficacy of the drug. Elevated level of anti-apoptotic Bcl-2 protein is proposed to be an emerging feedback loop for the acquired drug-resistance in various cancer types. In this study, the Bcl-2 inhibitor ABT-737 was used in combination with everolimus to enhance its anti-tumor effectiveness in everolimus-resistant RCC cell lines. Everolimus and ABT-737 combination synergistically led to a decrease in the proliferation of primary site A-498 and metastatic site Caki-1 RCC cell lines, which was accompanied by a reduction in protein levels of cell cycle and mTOR pathway proteins. In both RCC cell lines, everolimus-ABT-737 combination not only induced apoptosis, caspase and PARP-1 cleavage but also a decrease in Bcl-2 protein levels in parallel with a concomitant increase in Bim and Noxa levels. In order to confirm our in vitro findings, we have generated everolimus-resistant RenCa cell line (RenCares) to establish a RCC mouse xenograft model. Animals co-treated with everolimus and ABT-737 exhibited a complete suppression of tumor growth without any notable toxicity. This study thus proposes the everolimus-ABT-737 combination as a novel therapeutic strategy for the treatment of RCC to overcome the current clinical problem of everolimus resistance.
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Affiliation(s)
- Ayse Hande Nayman
- Yeditepe University, Faculty of Engineering, Department of Genetics and Bioengineering, Kayisdagi Cad., 34755, Istanbul, Turkey
| | - Halime Siginc
- Yeditepe University, Faculty of Engineering, Department of Genetics and Bioengineering, Kayisdagi Cad., 34755, Istanbul, Turkey
| | - Ebru Zemheri
- Department of Pathology, Umraniye Training and Research Hospital, Istanbul, Turkey
| | - Faruk Yencilek
- Yeditepe University, Faculty/School of Medicine, Yeditepe University Hospital, Istanbul, Turkey
| | - Asif Yildirim
- Department of Urology/Faculty of Medicine, Medeniyet University, Istanbul, Turkey
| | - Dilek Telci
- Yeditepe University, Faculty of Engineering, Department of Genetics and Bioengineering, Kayisdagi Cad., 34755, Istanbul, Turkey
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21
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HDAC Inhibition Counteracts Metastatic Re-Activation of Prostate Cancer Cells Induced by Chronic mTOR Suppression. Cells 2018; 7:cells7090129. [PMID: 30200497 PMCID: PMC6162415 DOI: 10.3390/cells7090129] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/28/2018] [Accepted: 08/30/2018] [Indexed: 12/11/2022] Open
Abstract
This study was designed to investigate whether epigenetic modulation by histone deacetylase (HDAC) inhibition might circumvent resistance towards the mechanistic target of rapamycin (mTOR) inhibitor temsirolimus in a prostate cancer cell model. Parental (par) and temsirolimus-resistant (res) PC3 prostate cancer cells were exposed to the HDAC inhibitor valproic acid (VPA), and tumor cell adhesion, chemotaxis, migration, and invasion were evaluated. Temsirolimus resistance was characterized by reduced binding of PC3res cells to endothelium, immobilized collagen, and fibronectin, but increased adhesion to laminin, as compared to the parental cells. Chemotaxis, migration, and invasion of PC3res cells were enhanced following temsirolimus re-treatment. Integrin α and β receptors were significantly altered in PC3res compared to PC3par cells. VPA significantly counteracted temsirolimus resistance by down-regulating tumor cell–matrix interaction, chemotaxis, and migration. Evaluation of integrin expression in the presence of VPA revealed a significant down-regulation of integrin α5 in PC3res cells. Blocking studies demonstrated a close association between α5 expression on PC3res and chemotaxis. In this in vitro model, temsirolimus resistance drove prostate cancer cells to become highly motile, while HDAC inhibition reversed the metastatic activity. The VPA-induced inhibition of metastatic activity was accompanied by a lowered integrin α5 surface level on the tumor cells.
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22
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Kiweler N, Brill B, Wirth M, Breuksch I, Laguna T, Dietrich C, Strand S, Schneider G, Groner B, Butter F, Heinzel T, Brenner W, Krämer OH. The histone deacetylases HDAC1 and HDAC2 are required for the growth and survival of renal carcinoma cells. Arch Toxicol 2018; 92:2227-2243. [DOI: 10.1007/s00204-018-2229-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 05/23/2018] [Indexed: 12/11/2022]
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23
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Engl T, Rutz J, Maxeiner S, Fanguen S, Juengel E, Koschade S, Roos F, Khoder W, Tsaur I, Blaheta RA. Acquired resistance to temsirolimus is associated with integrin α7 driven chemotactic activity of renal cell carcinoma in vitro. Oncotarget 2018; 9:18747-18759. [PMID: 29721158 PMCID: PMC5922352 DOI: 10.18632/oncotarget.24650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 02/27/2018] [Indexed: 11/25/2022] Open
Abstract
The mechanistic target of the rapamycin (mTOR) inhibitor, temsirolimus, has significantly improved the outcome of patients with renal cell carcinoma (RCC). However, development of temsirolimus-resistance limits its effect and metastatic progression subsequently recurs. Since integrin α7 (ITGA7) is speculated to promote metastasis, this investigation was designed to investigate whether temsirolimus-resistance is associated with altered ITGA7 expression in RCC cell lines and modified tumor cell adhesion and invasion. Caki-1, KTCTL-26, and A498 RCC cell lines were driven to temsirolimus-resistance by exposing them to temsirolimus over a period of 12 months. Subsequently, adhesion to human umbilical vein endothelial cells, to immobilized fibronectin, or collagen was investigated. Chemotaxis was evaluated with a modified Boyden chamber assay and ITGA7 expression by flow cytometry and western blotting. Chemotaxis significantly decreased in temsirolimus-sensitive cell lines upon exposure to low-dosed temsirolimus, but increased in temsirolimus-resistant tumor cells upon reexposure to the same temsirolimus dose. The increase in chemotaxis was accompanied by elevated ITGA7 at the cell surface membrane with simultaneous reduction of intracellular ITGA7. ITGA7 knock-down significantly diminished motility of temsirolimous-sensitive cells but elevated chemotactic activity of temsirolimus-resistant Caki-1 and KTCTL-26 cells. Therefore, ITGA7 appears closely linked to adhesion and migration regulation in RCC cells. It is postulated that temsirolimus-resistance is associated with translocation of ITGA7 from inside the cell to the outer surface. This switch forces RCC migration forward. Whether ITGA7 can serve as an important target in combatting RCC requires further investigation.
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Affiliation(s)
- Tobias Engl
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Jochen Rutz
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | | | - Sorel Fanguen
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Eva Juengel
- Department of Urology, Goethe-University, Frankfurt am Main, Germany.,Current address: Department of Urology and Pediatric Urology, University Medical Center Mainz, Mainz, Germany
| | - Sebastian Koschade
- Department of Medicine II, Hematology and Oncology, Goethe-University, Frankfurt am Main, Germany
| | - Frederik Roos
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Wael Khoder
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Igor Tsaur
- Department of Urology, Goethe-University, Frankfurt am Main, Germany.,Current address: Department of Urology and Pediatric Urology, University Medical Center Mainz, Mainz, Germany
| | - Roman A Blaheta
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
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24
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Juengel E, Maxeiner S, Rutz J, Justin S, Roos F, Khoder W, Tsaur I, Nelson K, Bechstein WO, Haferkamp A, Blaheta RA. Sulforaphane inhibits proliferation and invasive activity of everolimus-resistant kidney cancer cells in vitro. Oncotarget 2018; 7:85208-85219. [PMID: 27863441 PMCID: PMC5356730 DOI: 10.18632/oncotarget.13421] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 10/24/2016] [Indexed: 01/09/2023] Open
Abstract
Although the mechanistic target of rapamycin (mTOR) inhibitor, everolimus, has improved the outcome of patients with renal cell carcinoma (RCC), improvement is temporary due to the development of drug resistance. Since many patients encountering resistance turn to alternative/complementary treatment options, an investigation was initiated to evaluate whether the natural compound, sulforaphane (SFN), influences growth and invasive activity of everolimus-resistant (RCCres) compared to everolimus-sensitive (RCCpar) RCC cell lines in vitro. RCC cells were exposed to different concentrations of SFN and cell growth, cell proliferation, apoptosis, cell cycle, cell cycle regulating proteins, the mTOR-akt signaling axis, adhesion to human vascular endothelium and immobilized collagen, chemotactic activity, and influence on surface integrin receptor expression were investigated. SFN caused a significant reduction in both RCCres and RCCpar cell growth and proliferation, which correlated with an elevation in G2/M- and S-phase cells. SFN induced a marked decrease in the cell cycle activating proteins cdk1 and cyclin B and siRNA knock-down of cdk1 and cyclin B resulted in significantly diminished RCC cell growth. SFN also modulated adhesion and chemotaxis, which was associated with reduced expression of the integrin subtypes α5, α6, and β4. Distinct differences were seen in RCCres adhesion and chemotaxis (diminished by SFN) and RCCpar adhesion (enhanced by SFN) and chemotaxis (not influenced by SFN). Functional blocking of integrin subtypes demonstrated divergent action on RCC binding and invasion, depending on RCC cell sensitivity to everolimus. Therefore, SFN administration could hold potential for treating RCC patients with established resistance towards everolimus.
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Affiliation(s)
- Eva Juengel
- Department of Urology, Goethe-University, Frankfurt am Main, Germany.,Current address: Department of Urology and Pediatric Urology, University Medical Center Mainz, Mainz, Germany
| | | | - Jochen Rutz
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Saira Justin
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Frederik Roos
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Wael Khoder
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Igor Tsaur
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Karen Nelson
- Department of Vascular and Endovascular Surgery, Goethe-University, Frankfurt am Main, Germany
| | - Wolf O Bechstein
- Department of Urology, Goethe-University, Frankfurt am Main, Germany.,Department of General and Visceral Surgery, Goethe-University, Frankfurt am Main, Germany
| | - Axel Haferkamp
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
| | - Roman A Blaheta
- Department of Urology, Goethe-University, Frankfurt am Main, Germany
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25
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Xi W, Chen X, Sun J, Wang W, Huo Y, Zheng G, Wu J, Li Y, Yang A, Wang T. Combined Treatment with Valproic Acid and 5-Aza-2'-Deoxycytidine Synergistically Inhibits Human Clear Cell Renal Cell Carcinoma Growth and Migration. Med Sci Monit 2018; 24:1034-1043. [PMID: 29457966 PMCID: PMC5827631 DOI: 10.12659/msm.906020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Histone acetylation and DNA methylation are important mammalian epigenetic modifications that participate in the regulation of gene expression. Because dysregulation of histone deacetylase and DNA methyltransferases are hallmarks of malignancy, they have become promising therapeutic targets. In this study, we explored the anti-tumor activity of valproic acid (VPA), a histone deacetylase inhibitor (HDACi) and 5-Aza-2′-deoxycytidine (5-Aza), an inhibitor of DNA methyltransferases, on renal cell carcinoma (RCC) cell lines 786-O and 769-P. Material/Methods The cell proliferation was detected by xCELLigence RTCA DP Instrument, viability by CCK8 assay, cell apoptosis and cell cycle by flow cytometry, and cell migration by wound healing assay, Transwell assay and xCELLigence RTCA DP Instrument. Results We discovered that VPA and 5-Aza could individually induce decreased viability and have an inhibitory effect on the proliferation of 786-O and 769-P cells. This anti-growth effect was more pronounced when the cells were treated with both VPA and 5-Aza. The combination of VPA and 5-Aza also elicited more apoptosis and produced more cell cycle arrest in the G1 phase for both cell lines. On the other hand, treatment of RCC cells with VPA, 5-Aza, or a combination of both resulted in slow wound healing and impaired migration. Conclusions These findings clearly demonstrated that VPA combined with 5-Aza could significantly increase anti-RCC effects by inhibiting cellular proliferation, inducing apoptosis, promoting cell cycle arrest and prohibiting the migration of human RCC cells.
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Affiliation(s)
- Wenjin Xi
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Xu Chen
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Jinbo Sun
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Wei Wang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Yi Huo
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Guoxu Zheng
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Jieheng Wu
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Yufang Li
- Nuclear Medicine Diagnostic Center, Shaanxi Provincial Peple's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Angang Yang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
| | - Tao Wang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, Shaanxi, China (mainland)
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26
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Earwaker P, Anderson C, Willenbrock F, Harris AL, Protheroe AS, Macaulay VM. RAPTOR up-regulation contributes to resistance of renal cancer cells to PI3K-mTOR inhibition. PLoS One 2018; 13:e0191890. [PMID: 29389967 PMCID: PMC5794101 DOI: 10.1371/journal.pone.0191890] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 01/12/2018] [Indexed: 02/04/2023] Open
Abstract
The outlook for patients with advanced renal cell cancer (RCC) has been improved by targeted agents including inhibitors of the PI3 kinase (PI3K)-AKT-mTOR axis, although treatment resistance is a major problem. Here, we aimed to understand how RCC cells acquire resistance to PI3K-mTOR inhibition. We used the RCC4 cell line to generate a model of in vitro resistance by continuous culture in PI3K-mTOR kinase inhibitor NVP-BEZ235 (BEZ235, Dactolisib). Resistant cells were cross-resistant to mTOR inhibitor AZD2014. Sensitivity was regained after 4 months drug withdrawal, and resistance was partially suppressed by HDAC inhibition, supporting an epigenetic mechanism. BEZ235-resistant cells up-regulated and/or activated numerous proteins including MET, ABL, Notch, IGF-1R, INSR and MEK/ERK. However, resistance was not reversed by inhibiting or depleting these pathways, suggesting that many induced changes were passengers not drivers of resistance. BEZ235 blocked phosphorylation of mTOR targets S6 and 4E-BP1 in parental cells, but 4E-BP1 remained phosphorylated in resistant cells, suggesting BEZ235-refractory mTORC1 activity. Consistent with this, resistant cells over-expressed mTORC1 component RAPTOR at the mRNA and protein level. Furthermore, BEZ235 resistance was suppressed by RAPTOR depletion, or allosteric mTORC1 inhibitor rapamycin. These data reveal that RAPTOR up-regulation contributes to PI3K-mTOR inhibitor resistance, and suggest that RAPTOR expression should be included in the pharmacodynamic assessment of mTOR kinase inhibitor trials.
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Affiliation(s)
| | | | | | - Adrian L. Harris
- Oxford Cancer and Haematology Centre, Oxford University Hospitals NHS Trust, Churchill Hospital, Oxford, United Kingdom
| | - Andrew S. Protheroe
- Oxford Cancer and Haematology Centre, Oxford University Hospitals NHS Trust, Churchill Hospital, Oxford, United Kingdom
| | - Valentine M. Macaulay
- Department of Oncology, Oxford, United Kingdom
- Oxford Cancer and Haematology Centre, Oxford University Hospitals NHS Trust, Churchill Hospital, Oxford, United Kingdom
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27
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Liu Y, Tan X, Liu W, Chen X, Hou X, Shen D, Ding Y, Yin J, Wang L, Zhang H, Yu Y, Hou J, Thompson TC, Cao G. Follistatin-like protein 1 plays a tumor suppressor role in clear-cell renal cell carcinoma. CHINESE JOURNAL OF CANCER 2018; 37:2. [PMID: 29357946 PMCID: PMC5778637 DOI: 10.1186/s40880-018-0267-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 01/05/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND We previously showed that the expression of follistatin-like protein 1 (FSTL1) was significantly down-regulated in metastatic clear-cell renal cell carcinoma (ccRCC). In this study, we aimed to characterize the role of FSTL1 in the development of ccRCC. METHODS The effects of FSTL1 on cell activity and cell cycle were investigated in ccRCC cell lines with altered FSTL1 expression. Gene expression microarray assays were performed to identify the major signaling pathways affected by FSTL1 knockdown. The expression of FSTL1 in ccRCC and its effect on postoperative prognosis were estimated in a cohort with 89 patients. RESULTS FSTL1 knockdown promoted anchorage-independent growth, migration, invasion, and cell cycle of ccRCC cell lines, whereas FSTL1 overexpression attenuated cell migration. FSTL1 knockdown up-regulated nuclear factor-κB (NF-κB) and hypoxia-inducible factor (HIF) signaling pathways, increased epithelial-to-mesenchymal transition, up-regulated interleukin-6 expression, and promoted tumor necrosis factor-α-induced degradation of NF-κB inhibitor (IκBα) in ccRCC cell lines. FSTL1 immunostaining was selectively positive in epithelial cytoplasm in the loop of Henle, and positive rate of FSTL1 was significantly lower in ccRCC tissues than in adjacent renal tissues (P < 0.001). The multivariate Cox regression analysis showed that the intratumoral FSTL1 expression conferred a favorable independent prognosis with a hazard ratio of 0.325 (95% confidence interval 0.118-0.894). HIF-2α expression was negatively correlated with FSTL1 expression in ccRCC specimens (r = - 0.229, P = 0.044). Intratumoral expression of HIF-2α, rather than HIF-1α, significantly predicted an unfavorable prognosis in ccRCC (log-rank, P = 0.038). CONCLUSIONS FSTL1 plays a tumor suppression role possibly via repressing the NF-κB and HIF-2α signaling pathways. To increase FSTL1 expression might be a candidate therapeutic strategy for metastatic ccRCC.
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Affiliation(s)
- Yan Liu
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Xiaojie Tan
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Wenbin Liu
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Xi Chen
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Xiaomei Hou
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Dan Shen
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Yibo Ding
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Jianhua Yin
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Ling Wang
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Hongwei Zhang
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Yongwei Yu
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Jianguo Hou
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Timothy C Thompson
- Genitourinary Medical Oncology-Research, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Guangwen Cao
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, P. R. China.
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HDAC inhibition as a treatment concept to combat temsirolimus-resistant bladder cancer cells. Oncotarget 2017; 8:110016-110028. [PMID: 29299126 PMCID: PMC5746361 DOI: 10.18632/oncotarget.22454] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 10/12/2017] [Indexed: 12/16/2022] Open
Abstract
Introduction Although the mechanistic target of rapamycin (mTOR) might be a promising molecular target to treat advanced bladder cancer, resistance develops under chronic exposure to an mTOR inhibitor (everolimus, temsirolimus). Based on earlier studies, we proposed that histone deacetylase (HDAC) blockade might circumvent resistance and investigated whether HDAC inhibition has an impact on growth of bladder cancer cells with acquired resistance towards temsirolimus. Results The HDAC inhibitor valproic acid (VPA) significantly inhibited growth, proliferation and caused G0/G1 phase arrest in RT112res and UMUC-3res. cdk1, cyclin B, cdk2, cyclin A and Skp1 p19 were down-regulated, p27 was elevated. Akt-mTOR signaling was deactivated, whereas acetylation of histone H3 and H4 in RT112res and UMUC-3res increased in the presence of VPA. Knocking down cdk2 or cyclin A resulted in a significant growth blockade of RT112res and UMUC-3res. Materials And Methods Parental (par) and resistant (res) RT112 and UMUC-3 cells were exposed to the HDAC inhibitor VPA. Tumor cell growth, proliferation, cell cycling and expression of cell cycle regulating proteins were then evaluated. siRNA blockade was used to investigate the functional impact of the proteins. Conclusions HDAC inhibition induced a strong response of temsirolimus-resistant bladder cancer cells. Therefore, the temsirolimus-VPA-combination might be an innovative strategy for bladder cancer treatment.
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Wu SW, Chen PN, Lin CY, Hsieh YS, Chang HR. Everolimus suppresses invasion and migration of renal cell carcinoma by inhibiting FAK activity and reversing epithelial to mesenchymal transition in vitro and in vivo. ENVIRONMENTAL TOXICOLOGY 2017; 32:1888-1898. [PMID: 28258630 DOI: 10.1002/tox.22411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 06/06/2023]
Abstract
Renal cell carcinoma (RCC) is the most common type of kidney cancer in adults and the major cause of mortality in urological cancer. Most patients with RCC are asymptomatic until the disease is advanced and unresectable. In this situation, systemic therapy with immunotherapy or molecularly targeted therapy agents play an important role in therapeutic strategy. Everolimus (EVE), an m-TOR inhibitor, has the potential to inhibit tumor progression at multiple levels and is indicated for the treatment of advanced RCC in patients whose disease has metastasis. In this study, we provide molecular evidence associated with the antimetastatic effect of everolimus by demonstrating the suppression of lung metastasis of 786-O cells in mouse model. This effect was associated with reduced protein expressions of p-FAK (Tyr 925), p-Src (Tyr416), Vimentin, and RhoA and also with increased the E-cadherin protein expression. In summary, these findings provide new insights into the molecular mechanisms involved in the antimetastatic effect of everolimus and are thus valuable in the treatment of metastatic RCC.
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Affiliation(s)
- Sheng-Wen Wu
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Nephrology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Pei-Ni Chen
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Chin-Yin Lin
- Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Yih-Shou Hsieh
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Horng-Rong Chang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Nephrology, Chung Shan Medical University Hospital, Taichung, Taiwan
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30
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Vitale G, Dicitore A, Pepe D, Gentilini D, Grassi ES, Borghi MO, Gelmini G, Cantone MC, Gaudenzi G, Misso G, Di Blasio AM, Hofland LJ, Caraglia M, Persani L. Synergistic activity of everolimus and 5-aza-2'-deoxycytidine in medullary thyroid carcinoma cell lines. Mol Oncol 2017; 11:1007-1022. [PMID: 28453190 PMCID: PMC5537710 DOI: 10.1002/1878-0261.12070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 04/14/2017] [Accepted: 04/14/2017] [Indexed: 12/19/2022] Open
Abstract
Medullary thyroid cancer (MTC) is a tumor highly resistant to chemo‐ and radiotherapy. Drug resistance can be induced by epigenetic changes such as aberrant DNA methylation. To overcome drug resistance, we explored a promising approach based on the use of 5‐aza‐2′‐deoxycytidine (AZA), a demethylating agent, in combination with the mTOR inhibitor everolimus in MTC cells (MZ‐CRC‐1 and TT). This combined treatment showed a strong synergistic antiproliferative activity through the induction of apoptosis. The effect of everolimus and/or AZA on genome‐wide expression profiling was evaluated by Illumina BeadChip in MZ‐CRC‐1 cells. An innovative bioinformatic pipeline identified four potential molecular pathways implicated in the synergy between AZA and everolimus: PI3K‐Akt signaling, the neurotrophin pathway, ECM/receptor interaction, and focal adhesion. Among these, the neurotrophin signaling pathway was most directly involved in apoptosis, through the overexpression of NGFR and Bax genes. The increased expression of genes involved in the NGFR‐MAPK10‐TP53‐Bax/Bcl2 pathway during incubation with AZA plus everolimus was validated by western blotting in MZ‐CRC‐1 cells. Interestingly, addition of a neutralizing anti‐NGFR antibody inhibited the synergistic cytotoxic activity between AZA and everolimus. These results open a new therapeutic scenario for MTC and potentially other neuroendocrine tumors, where therapy with mTOR inhibitors is currently approved.
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Affiliation(s)
- Giovanni Vitale
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy.,Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | - Alessandra Dicitore
- Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | | | - Davide Gentilini
- Molecular Biology Laboratory, Istituto Auxologico Italiano, Milan, Italy
| | - Elisa S Grassi
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy
| | - Maria O Borghi
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy.,Experimental Laboratory of Immuno-rheumatologic Researches, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | - Giulia Gelmini
- Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | - Maria C Cantone
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy
| | - Germano Gaudenzi
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy
| | - Gabriella Misso
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Italy
| | - Anna M Di Blasio
- Molecular Biology Laboratory, Istituto Auxologico Italiano, Milan, Italy
| | - Leo J Hofland
- Section Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Italy
| | - Luca Persani
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Italy.,Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
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Schaffrath J, Schmoll HJ, Voigt W, Müller LP, Müller-Tidow C, Mueller T. Efficacy of targeted drugs in germ cell cancer cell lines with differential cisplatin sensitivity. PLoS One 2017; 12:e0178930. [PMID: 28591197 PMCID: PMC5462387 DOI: 10.1371/journal.pone.0178930] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/22/2017] [Indexed: 12/25/2022] Open
Abstract
Testicular germ cell tumors (TGCTs) are the most common malignancies in men between the age of 15 and 35. Although cisplatin-based chemotherapy is highly effective in advanced disease, approximately 20% of patients have an unfavorable prognosis due to primary or acquired cisplatin resistance. For these patients, new therapeutic options are urgently needed. In numerous tumor entities, combinations of monoclonal antibodies or kinase inhibitors with chemotherapy exerted promising preclinical or clinical results, which have led to new treatment concepts. This prompted us to investigate the activity of different targeted agents alone or in combination with cisplatin in a panel of TGCT cell lines.
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Affiliation(s)
- Judith Schaffrath
- Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Hans-Joachim Schmoll
- Workgroup Clinical Studies in Oncology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Wieland Voigt
- Medical Innovations and Management, Innovation in Oncology, Steinbeis University, Berlin, Germany
| | - Lutz P. Müller
- Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Mueller
- Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- * E-mail:
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32
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Juengel E, Euler S, Maxeiner S, Rutz J, Justin S, Roos F, Khoder W, Nelson K, Bechstein WO, Blaheta RA. Sulforaphane as an adjunctive to everolimus counteracts everolimus resistance in renal cancer cell lines. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2017; 27:1-7. [PMID: 28314474 DOI: 10.1016/j.phymed.2017.01.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/17/2017] [Accepted: 01/29/2017] [Indexed: 05/14/2023]
Abstract
BACKGROUND The mechanistic target of rapamycin (mTOR) inhibitors, everolimus and temsirolimus, have widened therapeutic options to treat renal cell carcinoma (RCC). However, chronic treatment with these inhibitors often induces resistance, leading to therapeutic failure. PURPOSE The natural compound, sulforaphane (SFN), was added to an everolimus based regime in vitro in the hopes of preventing resistance development. METHODS A panel of RCC cell lines (A498, Caki-1, KTCTL-26) was treated with everolimus or SFN or with an everolimus-SFN-combination, either short- (24h) or long-term (8 weeks), and cell growth, proliferation, apoptosis, and cell cycle phases were measured. The cell cycle regulating proteins cdk1, cdk2, cyclin A, cyclin B, akt and raptor (both total and activated) were also evaluated. RESULTS Short-term incubation with everolimus (1nM) or SFN (5µM) significantly reduced RCC cell growth. Additive effects on tumor growth and proliferation were evoked by the SFN-everolimus combination. Long-term everolimus-incubation led to resistance development in Caki-1 cells, evidenced by elevated growth and proliferation, associated with an increased percentage of G2/M (non-synchronized cell model) or S-phase (synchronized cell model) cells. Molecular analysis revealed up-regulation of the cdk1-cyclin B and cdk2-cyclin A axis, along with elevated phosphorylation of the mTOR sub-member, raptor. In contrast, resistance development was not observed with the long-term combination of SFN-everolimus. The combination suppressed Caki-1 growth and proliferation, and was associated with an increase in G0/G1-phase cells, diminished cdk1 and akt (both total and activated), cyclin B and raptor expression. CONCLUSION Adding SFN to an everolimus based RCC treatment regimen in vitro delayed resistance development observed with chronic everolimus monotherapy. Ongoing in vivo studies are necessary to verify the in vitro data.
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Affiliation(s)
- Eva Juengel
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Stephanie Euler
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Sebastian Maxeiner
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Jochen Rutz
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Saira Justin
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Frederik Roos
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Wael Khoder
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany
| | - Karen Nelson
- Department of Vascular and Endovascular Surgery, Goethe-University, Frankfurt am Main, Germany
| | - Wolf O Bechstein
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany; Department of General and Visceral Surgery, Goethe-University, Frankfurt am Main, Germany
| | - Roman A Blaheta
- Department of Urology, Goethe-University, Interdisciplinary Science Building, Building 25A, Room 404, Theodor-Stern-Kai 7, Frankfurt am Main, D-60590, Germany.
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Kurdi A, De Doncker M, Leloup A, Neels H, Timmermans JP, Lemmens K, Apers S, De Meyer GRY, Martinet W. Continuous administration of the mTORC1 inhibitor everolimus induces tolerance and decreases autophagy in mice. Br J Pharmacol 2016; 173:3359-3371. [PMID: 27638766 DOI: 10.1111/bph.13626] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Everolimus is an allosteric inhibitor of the mechanistic target of rapamycin complex 1 (mTORC1) widely known for its potent autophagy stimulating properties. Because everolimus shows poor solubility and stability in aqueous solutions, long-term in vivo administration in preclinical models is challenging. The aim of the present study was to evaluate the effects of short-term and long-term everolimus administration on mTORC1 inhibition and autophagy induction in mice. EXPERIMENTAL APPROACH We developed a vehicle in which everolimus was solubilized and stable at 37°C for at least 1 month. Using osmotic minipumps, GFP microtubule-associated protein light chain 3 transgenic mice were treated continuously either with vehicle or everolimus (1.5 mg·kg-1 per day) for 3 or 28 days. Alternatively, a regimen consisting of intermittent everolimus administration (every other day) for 56 days by oral gavage was used. Autophagy markers and mTORC1 activation status were investigated in the liver. KEY RESULTS As expected, everolimus inhibited mTORC1 and stimulated autophagy in the liver after 3 days of treatment. However, continuous administration for 28 days resulted in hyperactivation of the Akt1-mTORC1 pathway accompanied by a remarkable decrease in autophagy markers. Everolimus given intermittently for 56 days partially rescued mTORC1 sensitivity to the drug but without inducing autophagy. The failure to induce autophagy following long-term everolimus administration was due to uncoupling of the mTORC1 substrate unc-51 like autophagy activating kinase 1. CONCLUSIONS AND IMPLICATIONS Our data encourage the use of intermittent everolimus regimens to prevent tolerance and to extend its activity.
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Affiliation(s)
- Ammar Kurdi
- Laboratory of Physiopharmacology, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | | | - Arthur Leloup
- Laboratory of Physiopharmacology, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Hugo Neels
- Laboratory for TDM and Toxicology, ZNA Stuivenberg, Antwerp, Belgium.,Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Katrien Lemmens
- Laboratory of Pharmacology, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Sandra Apers
- Natural Products and Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Wim Martinet
- Laboratory of Physiopharmacology, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
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Li Y, Seto E. HDACs and HDAC Inhibitors in Cancer Development and Therapy. Cold Spring Harb Perspect Med 2016; 6:cshperspect.a026831. [PMID: 27599530 DOI: 10.1101/cshperspect.a026831] [Citation(s) in RCA: 749] [Impact Index Per Article: 93.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the last several decades, it has become clear that epigenetic abnormalities may be one of the hallmarks of cancer. Posttranslational modifications of histones, for example, may play a crucial role in cancer development and progression by modulating gene transcription, chromatin remodeling, and nuclear architecture. Histone acetylation, a well-studied posttranslational histone modification, is controlled by the opposing activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). By removing acetyl groups, HDACs reverse chromatin acetylation and alter transcription of oncogenes and tumor suppressor genes. In addition, HDACs deacetylate numerous nonhistone cellular substrates that govern a wide array of biological processes including cancer initiation and progression. This review will discuss the role of HDACs in cancer and the therapeutic potential of HDAC inhibitors (HDACi) as emerging drugs in cancer treatment.
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Affiliation(s)
- Yixuan Li
- George Washington University Cancer Center, Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC 20037
| | - Edward Seto
- George Washington University Cancer Center, Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC 20037
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Abstract
This review provides updated information published in 2014 regarding advances and major achievements in genitourinary cancer. Sections include the best in prostate cancer, renal cancer, bladder cancer, and germ cell tumors. In the field of prostate cancer, data related to treatment approach of hormone-sensitive disease, castrate-resistant prostate cancer, mechanisms of resistance, new drugs, and molecular research are presented. In relation to renal cancer, relevant aspects in the treatment of advanced renal cell carcinoma, immunotherapy, and molecular research, including angiogenesis and von Hippel-Lindau gene, molecular biology of non-clear cell histologies, and epigenetics of clear renal cell cancer are described. New strategies in the management of muscle-invasive localized bladder cancer and metastatic disease are reported as well as salient findings of biomolecular research in urothelial cancer. Some approaches intended to improve outcomes in poor prognosis patients with metastatic germ cell cancer are also reported. Results of clinical trials in these areas are discussed.
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Asić K. Dominant mechanisms of primary resistance differ from dominant mechanisms of secondary resistance to targeted therapies. Crit Rev Oncol Hematol 2016; 97:178-96. [DOI: 10.1016/j.critrevonc.2015.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 06/18/2015] [Accepted: 08/04/2015] [Indexed: 02/07/2023] Open
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Stepanenko AA, Andreieva SV, Korets KV, Mykytenko DO, Baklaushev VP, Chekhonin VP, Dmitrenko VV. mTOR inhibitor temsirolimus and MEK1/2 inhibitor U0126 promote chromosomal instability and cell type-dependent phenotype changes of glioblastoma cells. Gene 2015; 579:58-68. [PMID: 26748241 DOI: 10.1016/j.gene.2015.12.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/14/2015] [Accepted: 12/26/2015] [Indexed: 01/22/2023]
Abstract
The phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) and the RAF/mitogen-activated and extracellular signal-regulated kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) signaling pathways are frequently deregulated in cancer. Temsirolimus (TEM) and its primary active metabolite rapamycin allosterically block mTOR complex 1 substrate recruitment. The context-/experimental setup-dependent opposite effects of rapamycin on the multiple centrosome formation, aneuploidy, DNA damage/repair, proliferation, and invasion were reported. Similarly, the context-dependent either tumor-promoting or suppressing effects of RAF-MEK-ERK pathway and its inhibitors were demonstrated. Drug treatment-mediated stress may promote chromosomal instability (CIN), accelerating changes in the genomic landscape and phenotype diversity. Here, we characterized the genomic and phenotypic changes of U251 and T98G glioblastoma cell lines long-term treated with TEM or U0126, an inhibitor of MEK1/2. TEM significantly increased clonal and non-clonal chromosome aberrations. Both TEM and U0126 affected copy number alterations (CNAs) pattern. A proliferation rate of U251TEM and U251U0126 cells was lower and higher, respectively, than control cells. Colony formation efficiency of U251TEM significantly decreased, whereas U251U0126 did not change. U251TEM and U251U0126 cells decreased migration. In contrast, T98GTEM and T98GU0126 cells did not change proliferation, colony formation efficiency, and migration. Changes in the sensitivity of inhibitor-treated cells to the reduction of the glucose concentration were observed. Our results suggest that CIN and adaptive reprogramming of signal transduction pathways may be responsible for the cell type-dependent phenotype changes of long-term TEM- or U0126-treated tumor cells.
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Affiliation(s)
- A A Stepanenko
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, Zabolotnogo Str. 150, Kyiv 03680, Ukraine.
| | - S V Andreieva
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, Zabolotnogo Str. 150, Kyiv 03680, Ukraine
| | - K V Korets
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, Zabolotnogo Str. 150, Kyiv 03680, Ukraine
| | - D O Mykytenko
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, Zabolotnogo Str. 150, Kyiv 03680, Ukraine
| | - V P Baklaushev
- Department of Medicinal Nanobiotechnology, Pirogov Russian State Medical University, Ostrovitianov str. 1, Moscow 117997, Russia; Federal Research and Clinical Centre, FMBA of Russia, Orekhoviy bulvar str. 28, Moscow 115682, Russia
| | - V P Chekhonin
- Department of Medicinal Nanobiotechnology, Pirogov Russian State Medical University, Ostrovitianov str. 1, Moscow 117997, Russia
| | - V V Dmitrenko
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, Zabolotnogo Str. 150, Kyiv 03680, Ukraine
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Kurdi A, De Meyer GRY, Martinet W. Potential therapeutic effects of mTOR inhibition in atherosclerosis. Br J Clin Pharmacol 2015; 82:1267-1279. [PMID: 26551391 DOI: 10.1111/bcp.12820] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 12/13/2022] Open
Abstract
Despite significant improvement in the management of atherosclerosis, this slowly progressing disease continues to affect countless patients around the world. Recently, the mechanistic target of rapamycin (mTOR) has been identified as a pre-eminent factor in the development of atherosclerosis. mTOR is a constitutively active kinase found in two different multiprotein complexes, mTORC1 and mTORC2. Pharmacological interventions with a class of macrolide immunosuppressive drugs, called rapalogs, have shown undeniable evidence of the value of mTORC1 inhibition to prevent the development of atherosclerotic plaques in several animal models. Rapalog-eluting stents have also shown extraordinary results in humans, even though the exact mechanism for this anti-atherosclerotic effect remains elusive. Unfortunately, rapalogs are known to trigger diverse undesirable effects owing to mTORC1 resistance or mTORC2 inhibition. These adverse effects include dyslipidaemia and insulin resistance, both known triggers of atherosclerosis. Several strategies, such as combination therapy with statins and metformin, have been suggested to oppose rapalog-mediated adverse effects. Statins and metformin are known to inhibit mTORC1 indirectly via 5' adenosine monophosphate-activated protein kinase (AMPK) activation and may hold the key to exploit the full potential of mTORC1 inhibition in the treatment of atherosclerosis. Intermittent regimens and dose reduction have also been proposed to improve rapalog's mTORC1 selectivity, thereby reducing mTORC2-related side effects.
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Affiliation(s)
- Ammar Kurdi
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium.
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Zhang C, Zhong JF, Stucky A, Chen XL, Press MF, Zhang X. Histone acetylation: novel target for the treatment of acute lymphoblastic leukemia. Clin Epigenetics 2015; 7:117. [PMID: 26543507 PMCID: PMC4634719 DOI: 10.1186/s13148-015-0151-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/27/2015] [Indexed: 12/18/2022] Open
Abstract
Acute lymphoblastic leukemia (ALL) has been generally considered a genetic disease (disorder) with an aggressive tumor entity of highly proliferative malignant lymphoid cells. However, in recent years, significant advances have been made in the elucidation of the ALL-associated processes. Thus, we understand that histone acetylation is involved in the permanent changes of gene expression controlling ALL developmental outcomes. In this article, we will focus on histone acetylation associated with ALL, their implications as biomarkers for prognostic, and their preclinical and clinical applications.
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Affiliation(s)
- Cheng Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037 People's Republic of China
| | - Jiang F Zhong
- Department of Diagnostic Sciences & Biomedical Sciences, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA 90033 USA ; Department of Pediatric, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
| | - Andres Stucky
- Department of Diagnostic Sciences & Biomedical Sciences, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA 90033 USA ; Department of Pediatric, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
| | - Xue-Lian Chen
- Department of Diagnostic Sciences & Biomedical Sciences, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA 90033 USA ; Department of Pediatric, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
| | - Michael F Press
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
| | - Xi Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037 People's Republic of China
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Abstract
mTOR (mechanistic target of rapamycin) functions as the central regulator for cell proliferation, growth and survival. Up-regulation of proteins regulating mTOR, as well as its downstream targets, has been reported in various cancers. This has promoted the development of anti-cancer therapies targeting mTOR, namely fungal macrolide rapamycin, a naturally occurring mTOR inhibitor, and its analogues (rapalogues). One such rapalogue, everolimus, has been approved in the clinical treatment of renal and breast cancers. Although results have demonstrated that these mTOR inhibitors are effective in attenuating cell growth of cancer cells under in vitro and in vivo conditions, subsequent sporadic response to rapalogues therapy in clinical trials has promoted researchers to look further into the complex understanding of the dynamics of mTOR regulation in the tumour environment. Limitations of these rapalogues include the sensitivity of tumour subsets to mTOR inhibition. Additionally, it is well known that rapamycin and its rapalogues mediate their effects by inhibiting mTORC (mTOR complex) 1, with limited or no effect on mTORC2 activity. The present review summarizes the pre-clinical, clinical and recent discoveries, with emphasis on the cellular and molecular effects of everolimus in cancer therapy.
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Yan-Fang T, Zhi-Heng L, Li-Xiao X, Fang F, Jun L, Gang L, Lan C, Na-Na W, Xiao-Juan D, Li-Chao S, Wen-Li Z, Pei-Fang X, He Z, Guang-Hao S, Yan-Hong L, Yi-Ping L, Yun-Yun X, Hui-Ting Z, Yi W, Mei-Fang J, Lin L, Jian N, Shao-Yan H, Xue-Ming Z, Xing F, Jian W, Jian P. Molecular Mechanism of the Cell Death Induced by the Histone Deacetylase Pan Inhibitor LBH589 (Panobinostat) in Wilms Tumor Cells. PLoS One 2015; 10:e0126566. [PMID: 26176219 PMCID: PMC4503685 DOI: 10.1371/journal.pone.0126566] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 04/03/2015] [Indexed: 01/20/2023] Open
Abstract
Background Wilms tumor (WT) is an embryonic kidney cancer, for which histone acetylation might be a therapeutic target. LBH589, a novel targeted agent, suppresses histone deacetylases in many tumors. This study investigated the antitumor activity of LBH589 in SK-NEP-1 and G401 cells. Methods SK-NEP-1 and G401 cell growth was assessed by CCK-8 and in nude mice experiments. Annexin V/propidium iodide staining followed by flow cytometry detected apoptosis in cell culture. Gene expressions of LBH589-treated tumor cells were analyzed using an Arraystar Human LncRNA Array. The Multi Experiment View cluster software analyzed the expression data. Differentially expressed genes from the cluster analyses were imported into the Ingenuity Pathway Analysis tool. Results LBH589 inhibited cell proliferation of SK-NEP-1 and G401 cells in a dose-dependent manner. Annexin V, TUNEL and Hochest 33342 staining analysis showed that LBH589-treated cells showed more apoptotic features compared with the control. LBH589 treatment inhibited the growth of SK-NEP-1 xenograft tumors in nude mice. Arraystar Human LncRNA Array analysis of genes and lncRNAs regulated by LBH589 identified 6653 mRNAs and 8135 lncRNAs in LBH589-treated SK-NEP-1 cells. The most enriched gene ontology terms were those involved in nucleosome assembly. KEGG pathway analysis identified cell cycle proteins, including CCNA2, CCNB2, CCND1, CCND2, CDK4, CDKN1B and HDAC2, etc. Ingenuity Pathway Analysis identified important upstream molecules: HIST2H3C, HIST1H4A, HIST1A, HIST1C, HIST1D, histone H1, histone H3, RPRM, HSP70 and MYC. Conclusions LBH589 treatment caused apoptosis and inhibition of cell proliferation of SK-NEP-1and G401 cells. LBH589 had a significant effect and few side effects on SK-NEP-1 xenograft tumors. Expression profiling, and GO, KEGG and IPA analyses identified new targets and a new “network” of genes responding to LBH589 treatment in SK-NEP-1 cells. RPRM, HSP70 and MYC may be important regulators during LBH589 treatment. Our results provide new clues to the proapoptotic mechanism of LBH589.
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Affiliation(s)
- Tao Yan-Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Li Zhi-Heng
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xu Li-Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Lu Jun
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Li Gang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Cao Lan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Wang Na-Na
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Du Xiao-Juan
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yin chuan, China
| | - Sun Li-Chao
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zhao Wen-Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xiao Pei-Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Zhao He
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Su Guang-Hao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Li Yan-Hong
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Li Yi-Ping
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xu Yun-Yun
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Zhou Hui-Ting
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Wu Yi
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Jin Mei-Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Liu Lin
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Ni Jian
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, China
| | - Hu Shao-Yan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Zhu Xue-Ming
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Feng Xing
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Wang Jian
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
- * E-mail: (PJ); (WJ)
| | - Pan Jian
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
- * E-mail: (PJ); (WJ)
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Zhuo W, Zhang L, Zhu Y, Xie Q, Zhu B, Chen Z. Valproic acid, an inhibitor of class I histone deacetylases, reverses acquired Erlotinib-resistance of lung adenocarcinoma cells: a Connectivity Mapping analysis and an experimental study. Am J Cancer Res 2015; 5:2202-2211. [PMID: 26328250 PMCID: PMC4548331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/13/2015] [Indexed: 06/04/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKI) have been used as a powerful targeting therapeutic agent for treatment of lung adenocarcinoma for years. Nevertheless, the efficacy of TKI was hampered by the appearance of acquired TKI-resistance. In the present study, we aimed to search, predict, and screen the agents that can overcome the acquired TKI-resistance of lung adenocarcinoma by using the expression profiles of differentially expressed genes (DEGs) and Connectivity map (CMAP). The profiles of DEGs were obtained by searching GEO microarray database, and then, they were submitted to CMAP for analysis in order to predict and screen the agent that might reverse the TKI-resistance of lung cancer cells. Next, the effects of the selected agent on TKI-resistant cancer cells were tested and the possible signaling pathways were also evaluated. As a result, valproic acid (VPA) was selected. Then, we used a low-concentration of VPA that has little effect on the cell growth for analysis. Interestingly, the results showed that treatment with a combination of VPA and Erlotinib significantly led to a decrease in cell viability and an increase in cell apoptosis for TKI-resistant HCC827-ER cells, relative to those treated with VPA or Erlotinib alone. Further experiments confirmed that inhibition of MAPK and AKT might be involved in this process. Analyzing the DEGs through the CMAP is a good strategy for exploitation of anti-tumor agents. VPA might markedly increase the sensitivity of TKI-resistant lung adenocarcinoma cells to Erlotinib, thus reversing the acquired TKI-resistance of cancer cells and raising VPA as a potential agent for TKI-resistant lung cancer therapy.
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Affiliation(s)
- Wenlei Zhuo
- Institute of Cancer, Xinqiao Hospital, Third Military Medical UniversityChongqing, China
| | - Liang Zhang
- Institute of Cancer, Xinqiao Hospital, Third Military Medical UniversityChongqing, China
| | - Yi Zhu
- College of Food Science and Nutritional Engineering, China Agriculture UniversityBeijing, China
| | - Qichao Xie
- Institute of Cancer, Xinqiao Hospital, Third Military Medical UniversityChongqing, China
| | - Bo Zhu
- Institute of Cancer, Xinqiao Hospital, Third Military Medical UniversityChongqing, China
| | - Zhengtang Chen
- Institute of Cancer, Xinqiao Hospital, Third Military Medical UniversityChongqing, China
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Yao YS, Qiu WS, Yao RY, Zhang Q, Zhuang LK, Zhou F, Sun LB, Yue L. miR-141 confers docetaxel chemoresistance of breast cancer cells via regulation of EIF4E expression. Oncol Rep 2015; 33:2504-12. [PMID: 25813250 DOI: 10.3892/or.2015.3866] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/30/2015] [Indexed: 11/05/2022] Open
Abstract
Resistance to docetaxel, a chemotherapy drug for breast cancer (BC) treatment, occurs in ~50% of patients, and the underlying molecular mechanisms of drug resistance are not fully understood. Gene regulation through miR-141 has been proven to play an important role in cancer drug resistance. The present study investigated the role of miR-141 expression in BC cells of acquired docetaxel resistance. Inhibition of miR-141 enhanced the response to docetaxel in docetaxel-resistant cells (MCF-7/DTX and MDA-MB-231/DTX, respectively), whereas overexpression of miR-141 confered resistance in docetaxel-sensitive cells (MCF-7 and MDA-MB-231, respectively). By directly targeting the eukaryotic translation initiation factor 4E (EIF4E) mRNA, miR-141 acts on genes that are necessary for drug induced apoptosis rendering the cells drug resistant. Modulation of miR-141 expression was correlated with EIF4E expression changes and a direct interaction of miR-141 with EIF4E was shown by a luciferase assay. Thus, the present study is the first to show an increased expression of miR-141 in an acquired model of docetaxel resistance in BC. This serves as a mechanism of acquired docetaxel resistance in BC cells, possibly through direct interactions with EIF4E, therefore presenting a potential therapeutic target for the treatment of docetaxel resistant BC.
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Affiliation(s)
- Ya-Sai Yao
- Department of Oncology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Wen-Sheng Qiu
- Department of Oncology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Ru-Yong Yao
- Central Laboratory, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Qian Zhang
- Central Laboratory, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Li-Kun Zhuang
- Central Laboratory, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Fei Zhou
- Department of Oncology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Li-Bin Sun
- Department of Oncology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
| | - Lu Yue
- Department of Oncology, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, P.R. China
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