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Bretz AC, Parnitzke U, Kronthaler K, Dreker T, Bartz R, Hermann F, Ammendola A, Wulff T, Hamm S. Domatinostat favors the immunotherapy response by modulating the tumor immune microenvironment (TIME). J Immunother Cancer 2019; 7:294. [PMID: 31703604 PMCID: PMC6839078 DOI: 10.1186/s40425-019-0745-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/20/2019] [Indexed: 01/06/2023] Open
Abstract
Background The efficacy of PD-(L)1 blockade depends on the composition of the tumor immune microenvironment (TIME) and is generally higher in tumors with pre-existing cytotoxic T cells (CTL) than in those with low CTL numbers. Nonetheless, a significant proportion of patients with pre-existing immunity fail to respond, indicating a therapeutic potential for combining PD-(L)1 blockade with additional immunomodulatory agents in both CTL-high and -low immune phenotypes. Here, we evaluated domatinostat (4SC-202), a class I-selective histone deacetylase (HDAC) inhibitor, for its effect on the TIME and its antitumoral efficacy using syngeneic mouse models with CTL-high or CTL-low tumors. Methods Domatinostat was evaluated in PD-1 blockade-insensitive CTL-low (CT26) and CTL-high (C38) syngeneic models alone and in combination with different immune-inhibitory and -stimulatory approaches. Effects on the immunophenotype were assessed via flow cytometry and RNA-seq analyses. The changes in RNA-seq-based immune signatures determined in a murine setting were investigated in patient samples from the first-dose cohort of the SENSITIZE trial (NCT03278665) evaluating domatinostat combined with pembrolizumab in advanced-stage melanoma patients refractory/nonresponding to PD-1 blockade. Results Domatinostat increased the expression of antigen-presenting machinery (APM) genes and MHC class I and II molecules, along with CTL infiltration, in tumors of both immune phenotypes. In combination with PD-(L)1 blockade, domatinostat augmented antitumor effects substantially above the effects of single-agent therapies, displaying greater benefit in tumors with pre-existing CTLs. In this setting, the combination of domatinostat with agonistic anti-4-1BB or both PD-1 and LAG3 blockade further increased the antitumor efficacy. In CTL-low tumors, domatinostat enhanced the expression of genes known to reinforce immune responses against tumors. Specifically, domatinostat increased the expression of Ifng and genes associated with responses to pembrolizumab and nivolumab. Clinically, these findings were confirmed in patients with advanced melanoma treated with domatinostat for 14 days, who demonstrated elevated expression of APM and MHC genes, the IFNG gene, and the IFN-γ and pembrolizumab response signatures in individual tumor samples. Conclusion In summary, these data suggest a promising potential of domatinostat in combination with immunotherapy to improve the outcome of refractory cancer patients.
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Affiliation(s)
| | | | | | - Tobias Dreker
- 4SC AG, Fraunhoferstr. 22, 82152, Planegg-Martinsried, Germany
| | - René Bartz
- 4SC AG, Fraunhoferstr. 22, 82152, Planegg-Martinsried, Germany
| | - Frank Hermann
- 4SC AG, Fraunhoferstr. 22, 82152, Planegg-Martinsried, Germany
| | | | - Tanja Wulff
- 4SC AG, Fraunhoferstr. 22, 82152, Planegg-Martinsried, Germany
| | - Svetlana Hamm
- 4SC AG, Fraunhoferstr. 22, 82152, Planegg-Martinsried, Germany.
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52
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Zhao LM, Zhang JH. Histone Deacetylase Inhibitors in Tumor Immunotherapy. Curr Med Chem 2019; 26:2990-3008. [PMID: 28762309 DOI: 10.2174/0929867324666170801102124] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 04/26/2017] [Accepted: 06/27/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND With an increasing understanding of the antitumor immune response, considerable progress has been made in the field of tumor immunotherapy in the last decade. Inhibition of histone deacetylases represents a new strategy in tumor therapy and histone deacetylase inhibitors have been recently developed and validated as potential antitumor drugs. In addition to the direct antitumor effects, histone deacetylase inhibitors have been found to have the ability to improve tumor recognition by immune cells that may contribute to their antitumor activity. These immunomodolutory effects are desirable, and their in-depth comprehension will facilitate the design of novel regimens with improved clinical efficacy. OBJECTIVE Our goal here is to review recent developments in the application of histone deacetylase inhibitors as immune modulators in cancer treatment. METHODS Systemic compilation of the relevant literature in this field. RESULTS & CONCLUSION In this review, we summarize recent advances in the understanding of how histone deacetylase inhibitors alter immune process and discuss their effects on various cytokines. We also discuss the challenges to optimize the use of these inhibitors as immune modulators in cancer treatment. Information gained from this review will be valuable to this field and may be helpful for designing tumor immunotherapy trials involving histone deacetylase inhibitors.
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Affiliation(s)
- Li-Ming Zhao
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Jie-Huan Zhang
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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53
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Yang W, Li Y, Gao R, Xiu Z, Sun T. MHC class I dysfunction of glioma stem cells escapes from CTL-mediated immune response via activation of Wnt/β-catenin signaling pathway. Oncogene 2019; 39:1098-1111. [PMID: 31591480 DOI: 10.1038/s41388-019-1045-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 09/20/2019] [Accepted: 09/24/2019] [Indexed: 02/03/2023]
Abstract
Glioma stem cells (GSCs) decrease T cells cognition and evade systemic immunosurveillance via downregulations or defects of major histocompatibility complex class I (MHC-I) molecule and antigen-processing machinery (APM) components. Improvement of tumor surface antigens of GSCs may be effective strategy to trigger an adaptive immune response and activate cytotoxic T cells (CTLs) to eliminate glioma. In this study, our data indicated that downregulations of MHC-I and APM components expressions were associated with Wnt pathway activation in GSCs. Histone deacetylases (HDAC) inhibition improved MHC-I and APM components expressions, which could be partly reverted by Wnt pathway activation. Blocking CTLs-mediated killing decreased the anti-tumor effect of tumor lysate vaccine. The enhancement of T cells immune response resulting from HDAC inhibition was dependent on CTLs cognition on tumor antigens presented by upregulated MHC-I molecule in GSCs. These data suggest that suppression of stemness pathway may be effective for GSCs-based immunotherapy against immune-escaped tumors.
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Affiliation(s)
- Wei Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, Jiangsu, China.
| | - Yanyan Li
- Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 215006, Suzhou, Jiangsu, China
| | - Ruoling Gao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, Jiangsu, China
| | - Zenghe Xiu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, Jiangsu, China
| | - Ting Sun
- Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 215006, Suzhou, Jiangsu, China.
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54
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Sun T, Li Y, Yang W, Wu H, Li X, Huang Y, Zhou Y, Du Z. Histone deacetylase inhibition up-regulates MHC class I to facilitate cytotoxic T lymphocyte-mediated tumor cell killing in glioma cells. J Cancer 2019; 10:5638-5645. [PMID: 31737100 PMCID: PMC6843866 DOI: 10.7150/jca.34471] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/12/2019] [Indexed: 12/31/2022] Open
Abstract
Background: Immune cells recognize tumor antigens presented on major histocompatibility complex class I (MHC-I) molecule. Increase of MHC-I molecular expression makes tumor cells more susceptible to lysis by immune cells. Methods: Tumor lysate vaccine was prepared to damage glioma cells including cell lines and primary cultured cells from surgical samples. The enhanced effect of histone deacetylase inhibitors (HDACi) to tumor lysate vaccine was observed. The expressions of MHC-I pathway molecules were detected by flow cytometry and western blot after HDACi treatment. Cell apoptosis and cell lysis were measured following blocking cytotoxic T lymphocyte (CTL) pathway. Tumor size and mice survival were analyzed in combinative treatment with HDACi and tumor lysate. Results: HDACi up-regulated the expressions of MHC-I pathway molecules, and enhanced the recognition and killing of immune cells, which was activated by tumor lysate. Activated antigen specific immune responses regulated CTL activity, and HDACi promoted immune response through cytotoxic effect of CTL. Anti-tumor effect of tumor lysate pulse immunogenicity in vivo was elevated by HDACi due to up-regulation of antigen presentation. Conclusions: Our study showed that HDACi enhanced recognition of glioma cell by immune cells and sensitivity of tumor immunotherapy, and improved the anti-tumor effect of tumor lysate vaccine through activating CTL immune response. These pharmacological molecular mechanisms of increasing immune recognition suggest that epigenetic modulation is a promising strategy for sensitizing immunotherapy for glioma treatment.
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Affiliation(s)
- Ting Sun
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yanyan Li
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Wei Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, China
| | - Haibin Wu
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xuetao Li
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yulun Huang
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Youxin Zhou
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ziwei Du
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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55
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Friedrich M, Jasinski-Bergner S, Lazaridou MF, Subbarayan K, Massa C, Tretbar S, Mueller A, Handke D, Biehl K, Bukur J, Donia M, Mandelboim O, Seliger B. Tumor-induced escape mechanisms and their association with resistance to checkpoint inhibitor therapy. Cancer Immunol Immunother 2019; 68:1689-1700. [PMID: 31375885 DOI: 10.1007/s00262-019-02373-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/28/2019] [Indexed: 12/19/2022]
Abstract
Immunotherapy aims to activate the immune system to fight cancer in a very specific and targeted manner. Despite the success of different immunotherapeutic strategies, in particular antibodies directed against checkpoints as well as adoptive T-cell therapy, the response of patients is limited in different types of cancers. This attributes to escape of the tumor from immune surveillance and development of acquired resistances during therapy. In this review, the different evasion and resistance mechanisms that limit the efficacy of immunotherapies targeting tumor-associated antigens presented by major histocompatibility complex molecules on the surface of the malignant cells are summarized. Overcoming these escape mechanisms is a great challenge, but might lead to a better clinical outcome of patients and is therefore currently a major focus of research.
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Affiliation(s)
- Michael Friedrich
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Simon Jasinski-Bergner
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Maria-Filothei Lazaridou
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Karthikeyan Subbarayan
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Chiara Massa
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Sandy Tretbar
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Anja Mueller
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Diana Handke
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Katharina Biehl
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Jürgen Bukur
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany
| | - Marco Donia
- Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Ofer Mandelboim
- Department of Immunology, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Straße 2, 06110, Halle (Saale), Germany.
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56
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Immunoepigenetics Combination Therapies: An Overview of the Role of HDACs in Cancer Immunotherapy. Int J Mol Sci 2019; 20:ijms20092241. [PMID: 31067680 PMCID: PMC6539010 DOI: 10.3390/ijms20092241] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/23/2019] [Accepted: 04/28/2019] [Indexed: 12/26/2022] Open
Abstract
Long-standing efforts to identify the multifaceted roles of histone deacetylase inhibitors (HDACis) have positioned these agents as promising drug candidates in combatting cancer, autoimmune, neurodegenerative, and infectious diseases. The same has also encouraged the evaluation of multiple HDACi candidates in preclinical studies in cancer and other diseases as well as the FDA-approval towards clinical use for specific agents. In this review, we have discussed how the efficacy of immunotherapy can be leveraged by combining it with HDACis. We have also included a brief overview of the classification of HDACis as well as their various roles in physiological and pathophysiological scenarios to target key cellular processes promoting the initiation, establishment, and progression of cancer. Given the critical role of the tumor microenvironment (TME) towards the outcome of anticancer therapies, we have also discussed the effect of HDACis on different components of the TME. We then have gradually progressed into examples of specific pan-HDACis, class I HDACi, and selective HDACis that either have been incorporated into clinical trials or show promising preclinical effects for future consideration. Finally, we have included examples of ongoing trials for each of the above categories of HDACis as standalone agents or in combination with immunotherapeutic approaches.
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57
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Schnekenburger M, Dicato M, Diederich MF. Anticancer potential of naturally occurring immunoepigenetic modulators: A promising avenue? Cancer 2019; 125:1612-1628. [PMID: 30840315 DOI: 10.1002/cncr.32041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/29/2018] [Accepted: 01/25/2019] [Indexed: 12/19/2022]
Abstract
The immune system represents the major primary defense line against carcinogenesis and acts by identifying and eradicating nascent transformed cells. A growing body of evidence is indicating that aberrant epigenetic reprogramming plays a key role in tumor immune escape through: 1) impaired efficient recognition of neoplastic cells by the immune system, resulting from a downregulation or loss of the expression of tumor-associated antigens, human leukocyte antigens, antigen processing and presenting machinery, and costimulatory molecule genes; 2) aberrant expression of immune checkpoint proteins and their ligands; and 3) modification of cytokine profiles and tumor-associated immune cell populations toward an immunosuppressive state in the tumor microenvironment. Consistent with the inherent reversibility of epigenetic alterations, epigenetic drugs, including DNA methyltransferase and histone deacetylase inhibitors, have the unique potential to favorably modify the tumor microenvironment, restore tumor recognition and stimulate an antitumor immune response. The objective of this review is to highlight selected, naturally occurring epigenetic modulators, namely, butyrate, curcumin, (-)-epigallocatechin-3-gallate, resveratrol, romidepsin, and trichostatin A, with a special focus on their antitumor immune properties.
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Affiliation(s)
- Michael Schnekenburger
- Laboratory of Molecular and Cellular Biology of Cancer, Kirchberg Hospital, Luxembourg, Luxembourg
| | - Mario Dicato
- Laboratory of Molecular and Cellular Biology of Cancer, Kirchberg Hospital, Luxembourg, Luxembourg
| | - Marc F Diederich
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
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58
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Kartikasari AER, Prakash MD, Cox M, Wilson K, Boer JC, Cauchi JA, Plebanski M. Therapeutic Cancer Vaccines-T Cell Responses and Epigenetic Modulation. Front Immunol 2019; 9:3109. [PMID: 30740111 PMCID: PMC6357987 DOI: 10.3389/fimmu.2018.03109] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/17/2018] [Indexed: 12/22/2022] Open
Abstract
There is great interest in developing efficient therapeutic cancer vaccines, as this type of therapy allows targeted killing of tumor cells as well as long-lasting immune protection. High levels of tumor-infiltrating CD8+ T cells are associated with better prognosis in many cancers, and it is expected that new generation vaccines will induce effective production of these cells. Epigenetic mechanisms can promote changes in host immune responses, as well as mediate immune evasion by cancer cells. Here, we focus on epigenetic modifications involved in both vaccine-adjuvant-generated T cell immunity and cancer immune escape mechanisms. We propose that vaccine-adjuvant systems may be utilized to induce beneficial epigenetic modifications and discuss how epigenetic interventions could improve vaccine-based therapies. Additionally, we speculate on how, given the unique nature of individual epigenetic landscapes, epigenetic mapping of cancer progression and specific subsequent immune responses, could be harnessed to tailor therapeutic vaccines to each patient.
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Affiliation(s)
- Apriliana E R Kartikasari
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Monica D Prakash
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Momodou Cox
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Kirsty Wilson
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia.,Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia
| | - Jennifer C Boer
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Jennifer A Cauchi
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Magdalena Plebanski
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
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59
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Sun W, Lv S, Li H, Cui W, Wang L. Enhancing the Anticancer Efficacy of Immunotherapy through Combination with Histone Modification Inhibitors. Genes (Basel) 2018; 9:genes9120633. [PMID: 30558227 PMCID: PMC6315613 DOI: 10.3390/genes9120633] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 12/13/2022] Open
Abstract
In the nucleus of each cell, the DNA is wrapped around histone octamers, forming the so-called “nucleosomal core particles”. The histones undergo various modifications that influence chromatin structure and function, including methylation, acetylation, ubiquitination, phosphorylation, and SUMOylation. These modifications, known as epigenetic modifications (defined as heritable molecular determinants of phenotype that are independent of the DNA sequence), result in alterations of gene expression and changes in cell behavior. Recent work has shown that epigenetic drugs targeting histone deacetylation or methylation modulate the immune response and overcome acquired resistance to immunotherapy. A number of combination therapies involving immunotherapy and epigenetic drugs, which target histone deacetylation or methylation, are currently under various clinical/pre-clinical investigations and have shown promising anticancer efficacy. These combination therapies may provide a new strategy for achieving sustained anticancer efficacy and overcoming resistance.
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Affiliation(s)
- Wanyu Sun
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Shuting Lv
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Hong Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Wei Cui
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Lihui Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China.
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60
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Epigenetic Targeting of Autophagy via HDAC Inhibition in Tumor Cells: Role of p53. Int J Mol Sci 2018; 19:ijms19123952. [PMID: 30544838 PMCID: PMC6321134 DOI: 10.3390/ijms19123952] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022] Open
Abstract
Tumor development and progression is the consequence of genetic as well as epigenetic alterations of the cell. As part of the epigenetic regulatory system, histone acetyltransferases (HATs) and deacetylases (HDACs) drive the modification of histone as well as non-histone proteins. Derailed acetylation-mediated gene expression in cancer due to a delicate imbalance in HDAC expression can be reversed by histone deacetylase inhibitors (HDACi). Histone deacetylase inhibitors have far-reaching anticancer activities that include the induction of cell cycle arrest, the inhibition of angiogenesis, immunomodulatory responses, the inhibition of stress responses, increased generation of oxidative stress, activation of apoptosis, autophagy eliciting cell death, and even the regulation of non-coding RNA expression in malignant tumor cells. However, it remains an ongoing issue how tumor cells determine to respond to HDACi treatment by preferentially undergoing apoptosis or autophagy. In this review, we summarize HDACi-mediated mechanisms of action, particularly with respect to the induction of cell death. There is a keen interest in assessing suitable molecular factors allowing a prognosis of HDACi-mediated treatment. Addressing the results of our recent study, we highlight the role of p53 as a molecular switch driving HDACi-mediated cellular responses towards one of both types of cell death. These findings underline the importance to determine the mutational status of p53 for an effective outcome in HDACi-mediated tumor therapy.
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61
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Arenas-Ramirez N, Sahin D, Boyman O. Epigenetic mechanisms of tumor resistance to immunotherapy. Cell Mol Life Sci 2018; 75:4163-4176. [PMID: 30140960 PMCID: PMC11105392 DOI: 10.1007/s00018-018-2908-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/10/2018] [Accepted: 08/16/2018] [Indexed: 12/14/2022]
Abstract
The recent impact of cancer immunotherapies has firmly established the ability and importance of the immune system to fight malignancies. However, the intimate interaction between the highly dynamic tumor and immune cells leads to a selection process driven by genetic and epigenetic processes. As the molecular pathways of cancer resistance mechanisms to immunotherapy become increasingly known, novel therapeutic targets are being tested in combination with immune-stimulating approaches. We here review recent insights into the molecular mechanisms of tumor resistance with particular emphasis on epigenetic processes and place these in the context of previous models.
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Affiliation(s)
| | - Dilara Sahin
- Department of Immunology, University Hospital Zurich, 8091, Zurich, Switzerland
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, 8091, Zurich, Switzerland.
- Faculty of Medicine, University of Zurich, 8006, Zurich, Switzerland.
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62
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Mohammadi A, Sharifi A, Pourpaknia R, Mohammadian S, Sahebkar A. Manipulating macrophage polarization and function using classical HDAC inhibitors: Implications for autoimmunity and inflammation. Crit Rev Oncol Hematol 2018; 128:1-18. [DOI: 10.1016/j.critrevonc.2018.05.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/18/2018] [Accepted: 05/10/2018] [Indexed: 02/06/2023] Open
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63
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Bhat SA, Vedpathak DM, Chiplunkar SV. Checkpoint Blockade Rescues the Repressive Effect of Histone Deacetylases Inhibitors on γδ T Cell Function. Front Immunol 2018; 9:1615. [PMID: 30072989 PMCID: PMC6060239 DOI: 10.3389/fimmu.2018.01615] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/29/2018] [Indexed: 12/16/2022] Open
Abstract
Histone deacetylases (HDAC) are one of the key epigenetic modifiers that control chromatin accessibility and gene expression. Their role in tumorigenesis is well established and HDAC inhibitors have emerged as an effective treatment modality. HDAC inhibitors have been investigated for their specific antitumor activities and also clinically evaluated in treatment of various malignancies. In the present study, we have investigated the effect of HDAC inhibitors on the effector functions of human γδ T cells. HDAC inhibitors inhibit the antigen-specific proliferative response of γδ T cells and cell cycle progression. In antigen-activated γδ T cells, the expression of transcription factors (Eomes and Tbet) and effector molecules (perforin and granzyme B) were decreased upon treatment with HDAC inhibitors. Treatment with HDAC inhibitors attenuated the antitumor cytotoxic potential of γδ T cells, which correlated with the enhanced expression of immune checkpoints programmed death-1 (PD-1) and programmed death ligand-1 in γδ T cells. Interestingly, PD-1 blockade improves the antitumor effector functions of HDAC inhibitor-treated γδ T cells, which is reflected in the increased expression of Granzyme B and Lamp-1. This study provides a rationale for designing HDAC inhibitor and immune check point blockade as a combinatorial treatment modality for cancer.
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Affiliation(s)
- Sajad A Bhat
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,HomiBhabha National Institute, Mumbai, India
| | - Disha Mohan Vedpathak
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,HomiBhabha National Institute, Mumbai, India
| | - Shubhada V Chiplunkar
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,HomiBhabha National Institute, Mumbai, India
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64
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Conte M, De Palma R, Altucci L. HDAC inhibitors as epigenetic regulators for cancer immunotherapy. Int J Biochem Cell Biol 2018. [PMID: 29535070 DOI: 10.1016/j.biocel.2018.03.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In recent years, anti-tumor immunotherapy has shown promising results, and immune-oncology is now emerging as the fourth major wave in the treatment of tumors after radiotherapy, chemotherapy and molecular targeted therapy. Understanding the impact of the immune system on neoplastic cells is crucial to improve its effectiveness against cancer. The stratification of patients who might benefit from immunotherapy as well as the personalization of medicine have contributed to the discovery of new immunotherapeutic targets and molecules. In the present review, we discuss the mechanistic role of histone deacetylase inhibitors (HDACi) as potential immunomodulating agents to treat cancer. Our current understanding of the use of HDACi in combination with various immunotherapeutic approaches, such as immunomodulating agents and cancer vaccines, is also addressed. The potential clinical applications of the growing number of novel epigenetic drugs for cancer immunotherapy are widening, and some of these therapies are already in clinical trials.
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Affiliation(s)
| | - Raffaele De Palma
- Department of Precision Medicine, Università degli Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138, Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, Università degli Studi della Campania Luigi Vanvitelli, Vico L. De Crecchio 7, 80138, Naples, Italy.
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65
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Knox B, Wang Y, Rogers LJ, Xuan J, Yu D, Guan H, Chen J, Shi T, Ning B, Kadlubar SA. A functional SNP in the 3'-UTR of TAP2 gene interacts with microRNA hsa-miR-1270 to suppress the gene expression. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2018; 59:134-143. [PMID: 29205500 PMCID: PMC5811321 DOI: 10.1002/em.22159] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/26/2017] [Accepted: 10/27/2017] [Indexed: 05/24/2023]
Abstract
The transporter associated with antigen processing 2 (TAP2) is involved in the development of multidrug resistance and the etiology of immunological diseases. In this study, we investigated whether the expression of TAP2 can be perturbed by single nucleotide polymorphisms (SNPs) located in 3'-untranslated region (3'-UTR) of the gene via interactions with microRNAs. Using a series of in silico assays, we selected the candidate microRNAs (miRNAs) with the potential to interact with functional SNPs of TAP2. The SNP rs241456-located in the 3'-UTR of TAP2-resides in a potential binding site for hsa-miR-1270 and hsa-miR-620. HEK 293 cells, from a human kidney cell line, were used to characterize the extent of binding of miRNAs to each polymorphic allele of the SNP by a luciferase reporter gene assay. RNA electrophoretic mobility shift assays were used to evaluate the interaction between the miRNAs and each allele sequence of the SNP. We found that hsa-miR-1270 inhibited luciferase activity by binding to the T allele of the SNP in an allele-specific manner. A negative correlation was also found between the expression of hsa-miR-1270 and the T allele of the SNP in kidney tissues. Our findings support the hypothesis that hsa-miR-1270 suppresses the production of TAP2 by binding to this SNP in the 3'-UTR of this gene. Environ. Mol. Mutagen. 59:134-143, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Bridgett Knox
- US Food and Drug Administration, National Center for Toxicological Research, Jefferson, Arkansas
| | - Yong Wang
- US Food and Drug Administration, National Center for Toxicological Research, Jefferson, Arkansas
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lora J. Rogers
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Jiekun Xuan
- US Food and Drug Administration, National Center for Toxicological Research, Jefferson, Arkansas
| | - Dianke Yu
- US Food and Drug Administration, National Center for Toxicological Research, Jefferson, Arkansas
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jiwei Chen
- School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Tieliu Shi
- School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Baitang Ning
- US Food and Drug Administration, National Center for Toxicological Research, Jefferson, Arkansas
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66
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Type 2 Innate Lymphocytes Actuate Immunity Against Tumours and Limit Cancer Metastasis. Sci Rep 2018; 8:2924. [PMID: 29440650 PMCID: PMC5811448 DOI: 10.1038/s41598-018-20608-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 01/15/2018] [Indexed: 12/13/2022] Open
Abstract
Type 2 innate lymphoid cells (ILC2) potentiate immune responses, however, their role in mediating adaptive immunity in cancer has not been assessed. Here, we report that mice genetically lacking ILC2s have significantly increased tumour growth rates and conspicuously higher frequency of circulating tumour cells (CTCs) and resulting metastasis to distal organs. Our data support the model that IL-33 dependent tumour-infiltrating ILC2s are mobilized from the lungs and other tissues through chemoattraction to enter tumours, and subsequently mediate tumour immune-surveillance by cooperating with dendritic cells to promote adaptive cytolytic T cell responses. We conclude that ILC2s play a fundamental, yet hitherto undescribed role in enhancing anti-cancer immunity and controlling tumour metastasis.
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McCaw TR, Randall TD, Forero A, Buchsbaum DJ. Modulation of antitumor immunity with histone deacetylase inhibitors. Immunotherapy 2017; 9:1359-1372. [PMID: 29185390 PMCID: PMC6077764 DOI: 10.2217/imt-2017-0134] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/30/2017] [Indexed: 01/02/2023] Open
Abstract
Histone deacetylase inhibitors possess a broad array of antitumor activities; however, their net impact on the evolving antitumor immune response is highly dependent on the inhibitors used and the histone deacetylases they target. Herein, we sequentially focus on each stage of the antitumor immune response - from dendritic cell activation and migration, antigen uptake and presentation, T-cell activation and differentiation and the enactment of antitumor effector functions within the tumor microenvironment. In particular, we will discuss how various inhibitors have different effects depending on cellular activation, experimental design and specific histone deacetylases being targeted - and how these changes impact the outcome of an antitumor immune response. At last, we consider the impact these inhibitors may have on T-cell exhaustion and implications for combination with other immunomodulating therapies.
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Affiliation(s)
- Tyler R McCaw
- Department of Medicine, Division of Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA, 35233
| | - Troy D Randall
- Department of Medicine, Division of Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA, 35233
| | - Andres Forero
- Department of Medicine, Division of Hematology & Oncology, University of Alabama at Birmingham, Birmingham, AL, USA, 35233
| | - Donald J Buchsbaum
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL, USA, 35233
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68
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Fedele P, Orlando L, Cinieri S. Targeting triple negative breast cancer with histone deacetylase inhibitors. Expert Opin Investig Drugs 2017; 26:1199-1206. [PMID: 28952409 DOI: 10.1080/13543784.2017.1386172] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Triple negative breast cancer (TNBC) is a heterogeneous disease characterized by poor outcomes, higher rates of relapse, lack of biomarkers for rational use of targeted treatments and insensitivity to current available treatments. Histone deacetylase inhibitors (HDACis) perform multiple cytotoxic actions and are emerging as promising multifunctional agents in TNBC. Areas covered: This review focuses on the challenges so far addressed in the targeted treatment of TNBC and explores the various mechanisms by which HDACis control cancer cell growth, tumor progression and metastases. Pivotal preclinical trials on HDACis like panobinostat, vorinostat, and entinostat show that these epigenetic agents exert an anti-proliferative effect on TNBC cells and control tumor growth by multiple mechanisms of action, including apoptosis and regulation of the epithelial to mesenchimal transition (EMT). Combination studies have reported the synergism of HDACis with other anticancer agents. Expert opinion: In recent years, treatment of TNBC has recorded a high number of failures in the development of targeted agents. HDACis alone or in combination strategies show promising activity in TNBC and could have implications for the future targeted treatment of TNBC patients. Future research should identify which agent synergizes better with HDACis and which patient will benefit more from these epigenetic agents.
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Affiliation(s)
- Palma Fedele
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
| | - Laura Orlando
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
| | - Saverio Cinieri
- a Medical Oncology & Breast Unit , "Antonio Perrino" Hospital , Brindisi , Italy
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69
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Liu X, Zhou Q, Xu Y, Chen M, Zhao J, Wang M. Harness the synergy between targeted therapy and immunotherapy: what have we learned and where are we headed? Oncotarget 2017; 8:86969-86984. [PMID: 29156850 PMCID: PMC5689740 DOI: 10.18632/oncotarget.21160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/05/2017] [Indexed: 12/22/2022] Open
Abstract
Since the introduction of imatinib for the treatment of chronic myelogenous leukemia, several oncogenic mutations have been identified in various malignancies that can serve as targets for therapy. More recently, a deeper insight into the mechanism of antitumor immunity and tumor immunoevasion have facilitated the development of novel immunotherapy agents. Certain targeted agents have the ability of inhibiting tumor growth without causing severe lymphocytopenia and amplifying antitumor immune response by increasing tumor antigenicity, enhancing intratumoral T cell infiltration, and altering the tumor immune microenvironment, which provides a rationale for combining targeted therapy with immunotherapy. Targeted therapy can elicit dramatic responses in selected patients by interfering with the tumor-intrinsic driver mutations. But in most cases, resistance will occur over a relatively short period of time. In contrast, immunotherapy can yield durable, albeit generally mild, responses in several tumor types via unleashing host antitumor immunity. Thus, combination approaches might be able to induce a rapid tumor regression and a prolonged duration of response. We examine the available evidence regarding immune effects of targeted therapy, and review preclinical and clinical studies on the combination of targeted therapy and immunotherapy for cancer treatment. Furthermore, we discuss challenges of the combined therapy and highlight the need for continued translational research.
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Affiliation(s)
- Xiaoyan Liu
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Qing Zhou
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Yan Xu
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Minjiang Chen
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Jing Zhao
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Mengzhao Wang
- Department of Pulmonary Medicine, Lung Cancer Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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70
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Song KH, Choi CH, Lee HJ, Oh SJ, Woo SR, Hong SO, Noh KH, Cho H, Chung EJ, Kim JH, Chung JY, Hewitt SM, Baek S, Lee KM, Yee C, Son M, Mao CP, Wu TC, Kim TW. HDAC1 Upregulation by NANOG Promotes Multidrug Resistance and a Stem-like Phenotype in Immune Edited Tumor Cells. Cancer Res 2017; 77:5039-5053. [PMID: 28716899 DOI: 10.1158/0008-5472.can-17-0072] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/18/2017] [Accepted: 07/06/2017] [Indexed: 12/20/2022]
Abstract
Cancer immunoediting drives the adaptation of tumor cells to host immune surveillance. Immunoediting driven by antigen (Ag)-specific T cells enriches NANOG expression in tumor cells, resulting in a stem-like phenotype and immune resistance. Here, we identify HDAC1 as a key mediator of the NANOG-associated phenotype. NANOG upregulated HDAC1 through promoter occupancy, thereby decreasing histone H3 acetylation on K14 and K27. NANOG-dependent, HDAC1-driven epigenetic silencing of cell-cycle inhibitors CDKN2D and CDKN1B induced stem-like features. Silencing of TRIM17 and NOXA induced immune and drug resistance in tumor cells by increasing antiapoptotic MCL1. Importantly, HDAC inhibition synergized with Ag-specific adoptive T-cell therapy to control immune refractory cancers. Our results reveal that NANOG influences the epigenetic state of tumor cells via HDAC1, and they encourage a rational application of epigenetic modulators and immunotherapy in treatment of NANOG+ refractory cancer types. Cancer Res; 77(18); 5039-53. ©2017 AACR.
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Affiliation(s)
- Kwon-Ho Song
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea.,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Chel Hun Choi
- Experimental Pathology Laboratory, Laboratory of Pathology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland.,Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyo-Jung Lee
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea.,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Se Jin Oh
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea.,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Seon Rang Woo
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea.,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Translational Research Institute for Incurable Diseases, Korea University College of Medicine, Seoul, Republic of Korea
| | - Soon-Oh Hong
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea.,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Hee Noh
- Gene Therapy Research Unit, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hanbyoul Cho
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.,Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Joo Chung
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jae-Hoon Kim
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.,Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Joon-Yong Chung
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Stephen M Hewitt
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seungki Baek
- Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Kyung-Mi Lee
- Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea
| | - Cassian Yee
- Department of Melanoma Medical Oncology and Immunology, UT MDAnderson Cancer Center, Houston, Texas.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Minjoo Son
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Chih-Ping Mao
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - T C Wu
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Tae Woo Kim
- Laboratory of Tumor Immunology, Department of Biomedical Sciences, Graduate School of Medicine, Korea University, Seoul, Korea. .,Department of Biochemistry and Molecular Biology, College of Medicine, Korea University, Seoul, Korea.,Department of Biomedical Science, College of Medicine, Korea University, Seoul, Korea.,Translational Research Institute for Incurable Diseases, Korea University College of Medicine, Seoul, Republic of Korea
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71
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Kiany S, Huang G, Kleinerman ES. Effect of entinostat on NK cell-mediated cytotoxicity against osteosarcoma cells and osteosarcoma lung metastasis. Oncoimmunology 2017; 6:e1333214. [PMID: 28919994 DOI: 10.1080/2162402x.2017.1333214] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/13/2017] [Accepted: 05/15/2017] [Indexed: 12/31/2022] Open
Abstract
There is a crucial need for a new therapeutic approach for osteosarcoma (OS) lung metastasis since this disease remains the main cause of mortality in OS. We previously demonstrated that natural killer (NK) cell therapy has minimal efficacy against OS metastasis. This study determined whether the histone deacetylase inhibitor entinostat could immunosensitize OS cells to NK cell lysis and increases the efficacy of NK cell therapy for OS lung metastasis. Entinostat upregulated ligands for NK cell-activating receptors (major histocompatibility complex [MHC] class I polypeptide-related chain A [MICA] and B [MICB]; UL16 binding proteins 1, 2, 5, and 6; and CD155) on OS cells both in vitro and in vivo and led to more susceptibility to NK cell-mediated cytotoxicity in vitro. Importantly, entinostat did not change NK cell viability, receptor expression, or function within the 24-h treatment. We also demonstrated two potential mechanisms by which entinostat enhanced expression of MICA and MICB on OS cells. Although entinostat upregulated ligands for the NK cell activating receptor on OS lung metastasis, it failed to augment the efficacy of NK cell therapy in our nude mouse human OS lung metastasis model. This can be partly explained by our finding that although the infused NK cells were active and functional and could penetrate into the lungs, they failed to infiltrate into the lung nodules. These challenges regarding cellular immunotherapy against solid tumors may be overcome by combination therapy, such as adding a NK cell-activating cytokine (IL-2 or IL-21).
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Affiliation(s)
- Simin Kiany
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gangxiong Huang
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eugenie S Kleinerman
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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72
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Histone Deacetylase Inhibitors as Anticancer Drugs. Int J Mol Sci 2017; 18:ijms18071414. [PMID: 28671573 PMCID: PMC5535906 DOI: 10.3390/ijms18071414] [Citation(s) in RCA: 791] [Impact Index Per Article: 113.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 06/11/2017] [Accepted: 06/27/2017] [Indexed: 12/11/2022] Open
Abstract
Carcinogenesis cannot be explained only by genetic alterations, but also involves epigenetic processes. Modification of histones by acetylation plays a key role in epigenetic regulation of gene expression and is controlled by the balance between histone deacetylases (HDAC) and histone acetyltransferases (HAT). HDAC inhibitors induce cancer cell cycle arrest, differentiation and cell death, reduce angiogenesis and modulate immune response. Mechanisms of anticancer effects of HDAC inhibitors are not uniform; they may be different and depend on the cancer type, HDAC inhibitors, doses, etc. HDAC inhibitors seem to be promising anti-cancer drugs particularly in the combination with other anti-cancer drugs and/or radiotherapy. HDAC inhibitors vorinostat, romidepsin and belinostat have been approved for some T-cell lymphoma and panobinostat for multiple myeloma. Other HDAC inhibitors are in clinical trials for the treatment of hematological and solid malignancies. The results of such studies are promising but further larger studies are needed. Because of the reversibility of epigenetic changes during cancer development, the potency of epigenetic therapies seems to be of great importance. Here, we summarize the data on different classes of HDAC inhibitors, mechanisms of their actions and discuss novel results of preclinical and clinical studies, including the combination with other therapeutic modalities.
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73
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Jaime-Ramirez AC, Yu JG, Caserta E, Yoo JY, Zhang J, Lee TJ, Hofmeister C, Lee JH, Kumar B, Pan Q, Kumar P, Baiocchi R, Teknos T, Pichiorri F, Kaur B, Old M. Reolysin and Histone Deacetylase Inhibition in the Treatment of Head and Neck Squamous Cell Carcinoma. Mol Ther Oncolytics 2017; 5:87-96. [PMID: 28812060 PMCID: PMC5440762 DOI: 10.1016/j.omto.2017.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/03/2017] [Indexed: 02/09/2023] Open
Abstract
Oncolytic viruses (OVs) are emerging as powerful anti-cancer agents and are currently being tested for their safety and efficacy in patients. Reovirus (Reolysin), a naturally occurring non-pathogenic, double-stranded RNA virus, has natural oncolytic activity and is being tested in phase I-III clinical trials in a variety of tumor types. With its recent US Food and Drug Administration (FDA) orphan drug designation for several tumor types, Reolysin is a potential therapeutic agent for various cancers, including head and neck squamous cell carcinomas (HNSCCs), which have a 5-year survival of ∼55%. Histone deacetylase inhibitors (HDACis) comprise a structurally diverse class of compounds with targeted anti-cancer effects. The first FDA-approved HDACi, vorinostat (suberoylanilide hydroxamic acid [SAHA]), is currently being tested in patients with head and neck cancer. Recent findings indicate that HDAC inhibition in myeloma cells results in the upregulation of the Reolysin entry receptor, junctional adhesion molecule 1 (JAM-1), facilitating reovirus infection and tumor cell killing both in vitro and in vivo. In this study, we tested the anti-tumor efficacy of HDAC inhibitors AR-42 or SAHA in conjunction with Reolysin in HNSCCs. While HDAC inhibition increased JAM-1 and reovirus entry, the impact of this combination therapy was tested on the development of anti-tumor immune responses.
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Affiliation(s)
| | - Jun-Ge Yu
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Enrico Caserta
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Ji Young Yoo
- Department of Neurological Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Jianying Zhang
- Biomedical Informatics Department, Center for Biostatistics, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA
| | - Tae Jin Lee
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Craig Hofmeister
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - John H. Lee
- Department of Otolaryngology/Head and Neck Surgery, Sanford Health, Sioux Falls, SD 57105, USA
| | - Bhavna Kumar
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Quintin Pan
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Pawan Kumar
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Robert Baiocchi
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Theodoros Teknos
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Flavia Pichiorri
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Balveen Kaur
- Department of Neurological Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Matthew Old
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
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Emens LA, Ascierto PA, Darcy PK, Demaria S, Eggermont AMM, Redmond WL, Seliger B, Marincola FM. Cancer immunotherapy: Opportunities and challenges in the rapidly evolving clinical landscape. Eur J Cancer 2017. [PMID: 28623775 DOI: 10.1016/j.ejca.2017.01.035] [Citation(s) in RCA: 357] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cancer immunotherapy is now established as a powerful way to treat cancer. The recent clinical success of immune checkpoint blockade (antagonists of CTLA-4, PD-1 and PD-L1) highlights both the universal power of treating the immune system across tumour types and the unique features of cancer immunotherapy. Immune-related adverse events, atypical clinical response patterns, durable responses, and clear overall survival benefit distinguish cancer immunotherapy from cytotoxic cancer therapy. Combination immunotherapies that transform non-responders to responders are under rapid development. Current challenges facing the field include incorporating immunotherapy into adjuvant and neoadjuvant cancer therapy, refining dose, schedule and duration of treatment and developing novel surrogate endpoints that accurately capture overall survival benefit early in treatment. As the field rapidly evolves, we must prioritise the development of biomarkers to guide the use of immunotherapies in the most appropriate patients. Immunotherapy is already transforming cancer from a death sentence to a chronic disease for some patients. By making smart, evidence-based decisions in developing next generation immunotherapies, cancer should become an imminently treatable, curable and even preventable disease.
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Affiliation(s)
- Leisha A Emens
- Johns Hopkins University School of Medicine, Department of Oncology, Graduate Program in Pathobiology, Baltimore, MD 21287, USA.
| | - Paolo A Ascierto
- Istituto Nazionale Tumori Fondazione G. Pascale, Melanoma, Cancer Immunotherapy and Innovative Therapy Unit, Napoli, Italy
| | - Phillip K Darcy
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville 3010, Australia
| | - Sandra Demaria
- Weill Cornell Medical College, Department of Radiation Oncology, New York, NY 10065, USA
| | - Alexander M M Eggermont
- Cancer Institute Gustave-Roussy, 114 Rue Edouard Vaillant, Villejuif/Paris-Sud 94800, France
| | - William L Redmond
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, Portland, OR 97213, USA
| | - Barbara Seliger
- Martin Luther University, Institute for Medical Immunology, Magdeburger Str. 2, 06112 Halle, Germany
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75
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DNMT and HDAC inhibitors induce cryptic transcription start sites encoded in long terminal repeats. Nat Genet 2017; 49:1052-1060. [PMID: 28604729 DOI: 10.1038/ng.3889] [Citation(s) in RCA: 188] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 05/03/2017] [Indexed: 12/13/2022]
Abstract
Several mechanisms of action have been proposed for DNA methyltransferase and histone deacetylase inhibitors (DNMTi and HDACi), primarily based on candidate-gene approaches. However, less is known about their genome-wide transcriptional and epigenomic consequences. By mapping global transcription start site (TSS) and chromatin dynamics, we observed the cryptic transcription of thousands of treatment-induced non-annotated TSSs (TINATs) following DNMTi and HDACi treatment. The resulting transcripts frequently splice into protein-coding exons and encode truncated or chimeric ORFs translated into products with predicted abnormal or immunogenic functions. TINAT transcription after DNMTi treatment coincided with DNA hypomethylation and gain of classical promoter histone marks, while HDACi specifically induced a subset of TINATs in association with H2AK9ac, H3K14ac, and H3K23ac. Despite this mechanistic difference, both inhibitors convergently induced transcription from identical sites, as we found TINATs to be encoded in solitary long terminal repeats of the ERV9/LTR12 family, which are epigenetically repressed in virtually all normal cells.
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76
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Rodríguez-Ubreva J, Garcia-Gomez A, Ballestar E. Epigenetic mechanisms of myeloid differentiation in the tumor microenvironment. Curr Opin Pharmacol 2017; 35:20-29. [PMID: 28551408 DOI: 10.1016/j.coph.2017.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/28/2017] [Accepted: 04/24/2017] [Indexed: 12/14/2022]
Abstract
Myeloid cells are extremely plastic as they respond and terminally differentiate into a plethora of functional types, in the blood or tissues, in response to a variety of growth factors, cytokines and pathogenic molecules. This plasticity is also manifested by the subversion of normal differentiation into the aberrant generation of a variety of tolerogenic myeloid cells in the tumoral microenvironment, where a variety of factors are released. Epigenetic mechanisms are in great part responsible for the plasticity of myeloid cells both under physiological and tumoral conditions. The development of compounds that inhibit epigenetic enzymes provides novel therapeutic opportunities to intercept the crosstalk between cancer cells and host myeloid cells. Here, we summarize our current knowledge on the myeloid cell types generated in the cancer environment, the factors and epigenetic enzymes participating in these processes and propose a number of potential targets for future pharmacological use.
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Affiliation(s)
- Javier Rodríguez-Ubreva
- Chromatin and Disease Group, Cancer Epigenetics and Biology Programme (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Antonio Garcia-Gomez
- Chromatin and Disease Group, Cancer Epigenetics and Biology Programme (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Esteban Ballestar
- Chromatin and Disease Group, Cancer Epigenetics and Biology Programme (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Spain.
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77
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HDAC inhibitors enhance the immunotherapy response of melanoma cells. Oncotarget 2017; 8:83155-83170. [PMID: 29137331 PMCID: PMC5669957 DOI: 10.18632/oncotarget.17950] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 05/03/2017] [Indexed: 12/11/2022] Open
Abstract
We focused on the ability of the pan-histone deacetylase (HDAC) inhibitors AR42 and sodium valproate to alter the immunogenicity of melanoma cells. Treatment of melanoma cells with HDAC inhibitors rapidly reduced the expression of multiple HDAC proteins as well as the levels of PD-L1, PD-L2 and ODC, and increased expression of MHCA. In a cell-specific fashion, melanoma isolates released the immunogenic protein HMGB1 into the extracellular environment. Very similar data were obtained in ovarian and H&NSCC PDX isolates, and in established tumor cell lines from the lung and kidney. Knock down of HDAC1, HDAC3, HDAC8 and HDAC10, but not HDAC6, recapitulated the effects of the HDAC inhibitors on the immunotherapy biomarkers. Using B16 mouse melanoma cells we discovered that pre-treatment with AR42 or sodium valproate enhanced the anti-tumor efficacy of an anti-PD-1 antibody and of an anti-CTLA4 antibody. In the B16 model, both AR42 and sodium valproate enhanced the anti-tumor efficacy of the multi-kinase inhibitor pazopanib. In plasma from animals exposed to [HDAC inhibitor + anti-PD-1], but not [HDAC inhibitor + anti-CTLA4], the levels of CCL2, CCL5, CXCL9 and CXCL2 were increased. The cytokine data from HDAC inhibitor plus anti-PD-1 exposed tumors correlated with increased activated T cell, M1 macrophage, neutrophil and NK cell infiltration. Collectively, our data support the use of pan-HDAC inhibitors in combination with kinase inhibitors or with checkpoint inhibitor antibodies as novel melanoma therapeutic strategies.
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78
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Dunn J, Rao S. Epigenetics and immunotherapy: The current state of play. Mol Immunol 2017; 87:227-239. [PMID: 28511092 DOI: 10.1016/j.molimm.2017.04.012] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 04/14/2017] [Accepted: 04/22/2017] [Indexed: 12/14/2022]
Abstract
Cancer cells employ a number of mechanisms to escape immunosurveillance and facilitate tumour progression. The recent explosion of interest in immunotherapy, especially immune checkpoint blockade, is a result of discoveries about the fundamental ligand-receptor interactions that occur between immune and cancer cells within the tumour microenvironment. Distinct ligands expressed by cancer cells engage with cell surface receptors on immune cells, triggering inhibitory pathways (such as PD-1/PD-L1) that render immune cells immunologically tolerant. Importantly, recent studies on the role of epigenetics in immune evasion have exposed a key role for epigenetic modulators in augmenting the tumour microenvironment and restoring immune recognition and immunogenicity. Epigenetic drugs such as DNA methyltransferase and histone deacetylase inhibitors can reverse immune suppression via several mechanisms such as enhancing expression of tumour-associated antigens, components of the antigen processing and presenting machinery pathways, immune checkpoint inhibitors, chemokines, and other immune-related genes. These discoveries have established a highly promising basis for studies using combined epigenetic and immunotherapeutic agents as anti-cancer therapies. In this review, we discuss the exciting role of epigenetic immunomodulation in tumour immune escape, emphasising its significance in priming and sensitising the host immune system to immunotherapies through mechanisms such as the activation of the viral defence pathway. With this background in mind, we highlight the promise of combined epigenetic therapy and immunotherapy, focusing on immune checkpoint blockade, to improve outcomes for patients with many different cancer types.
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Affiliation(s)
- Jennifer Dunn
- Health Research Institute, Faculty of Education, Science, Technology and Mathematics, University of Canberra, Bruce, ACT, 2601, Australia.
| | - Sudha Rao
- Health Research Institute, Faculty of Education, Science, Technology and Mathematics, University of Canberra, Bruce, ACT, 2601, Australia.
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79
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Shen J, Pan J, Du C, Si W, Yao M, Xu L, Zheng H, Xu M, Chen D, Wang S, Fu P, Fan W. Silencing NKG2D ligand-targeting miRNAs enhances natural killer cell-mediated cytotoxicity in breast cancer. Cell Death Dis 2017; 8:e2740. [PMID: 28383557 PMCID: PMC5477582 DOI: 10.1038/cddis.2017.158] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 12/12/2022]
Abstract
NKG2D is one of the major activating receptors of natural killer (NK) cells and binds to several ligands (NKG2DLs). NKG2DLs are expressed on malignant cells and sensitize them to early elimination by cytotoxic lymphocytes. We investigated the clinical importance of NKG2DLs and the mechanism of NKG2DL regulation in breast cancer (BC). Among the NKG2DLs MICA/B and ULBP1/2/3, the expression levels of MICA/B in BC tissues were inversely associated with the Tumor Node Metastasis stage. We first found that the high expression of MICB, but not MICA, was an independent prognostic factor for overall survival in patients with BC. Investigation into the mechanism revealed that a group of microRNAs (miRNAs) belonging to the miR-17-92 cluster, especially miR-20a, decreased the expression of ULBP2 and MICA/B. These miRNAs downregulated the expression of MICA/B by targeting the MICA/B 3'-untranslated region and downregulated ULBP2 by inhibiting the MAPK/ERK signaling pathway. Functional analysis showed that the silencing of NKG2DL-targeting miRNAs in BC cells increased NK cell-mediated cytotoxicity in vitro and inhibited immune escape in vivo. In addition, histone deacetylase inhibitors (HDACis) increased NKG2DL expression in BC cells by inhibiting members of the miR-17-92 cluster. Thus, targeting miRNAs with antisense inhibitors or HDACis may represent a novel approach for increasing the immunogenicity of BC.
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Affiliation(s)
- Jiaying Shen
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Jie Pan
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Chengyong Du
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Wengong Si
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Minya Yao
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Liang Xu
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China.,Clinical Research Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Huilin Zheng
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Mingjie Xu
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Danni Chen
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China
| | - Shu Wang
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Weimin Fan
- Program of Cancer Innovative Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310000, China.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
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80
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Shionoya Y, Kanaseki T, Miyamoto S, Tokita S, Hongo A, Kikuchi Y, Kochin V, Watanabe K, Horibe R, Saijo H, Tsukahara T, Hirohashi Y, Takahashi H, Sato N, Torigoe T. Loss of tapasin in human lung and colon cancer cells and escape from tumor-associated antigen-specific CTL recognition. Oncoimmunology 2017; 6:e1274476. [PMID: 28344889 DOI: 10.1080/2162402x.2016.1274476] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/30/2016] [Accepted: 12/15/2016] [Indexed: 01/05/2023] Open
Abstract
Cytotoxic T-lymphocytes (CTLs) lyse target cells after recognizing the complexes of peptides and MHC class I molecules (pMHC I) on cell surfaces. Tapasin is an essential component of the peptide-loading complex (PLC) and its absence influences the surface repertoire of MHC class I peptides. In the present study, we assessed tapasin expression in 85 primary tumor lesions of non-small cell lung cancer (NSCLC) patients, demonstrating that tapasin expression positively correlated with patient survival. CD8+ T-cell infiltration of tumor lesions was synergistically observed with tapasin expression and correlated positively with survival. To establish a direct link between loss of tapasin and CTL recognition in human cancer models, we targeted the tapasin gene by CRISPR/Cas9 system and generated tapasin-deficient variants of human lung as well as colon cancer cells. We induced the CTLs recognizing endogenous tumor-associated antigens (TAA), survivin or cep55, and they responded to each tapasin-proficient wild type. In contrast, both CTL lines ignored the tapasin-deficient variants despite their antigen expression. Moreover, the adoptive transfer of the cep55-specific CTL line failed to prevent tumor growth in mice bearing the tapasin-deficient variant. Loss of tapasin most likely limited antigen processing of TAAs and led to escape from TAA-specific CTL recognition. Tapasin expression is thus a key for CTL surveillance against human cancers.
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Affiliation(s)
- Yosuke Shionoya
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Sho Miyamoto
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Ayumi Hongo
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Yasuhiro Kikuchi
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Kazue Watanabe
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Research and Development Division, Medical and Biological Laboratories Company, Limited, Ina, Japan
| | - Ryota Horibe
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | - Hiroshi Saijo
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | | | | | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University , Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
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81
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McGray AJR, Bramson J. Adaptive Resistance to Cancer Immunotherapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1036:213-227. [PMID: 29275474 DOI: 10.1007/978-3-319-67577-0_14] [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] [Indexed: 01/14/2023]
Abstract
Immunosuppressive mechanisms within the tumor microenvironment have emerged as a major impediment to cancer immunotherapy. While a broad range of secreted factors, receptors/ligands, and cell populations have been described that contribute to the immunosuppression, the involvement of these processes in immune evasion by tumors is typically considered to be an intrinsic property of the tumor. Evidence is now emerging that the processes underlying immune suppression within the tumor are, in fact, triggered by immune attack and reflect a dynamic interplay between the tumor and the host's immune system. The term adaptive resistance has been coined to describe the induction of immune suppressive pathways in the tumor following active attack on the tumor. Adaptive resistance is a scalable process where the magnitude of immune suppression matches the magnitude of the immune attack; the net balance between suppression and attack determines the durability of the anti-tumor response and tumor outcome. In this chapter, we will examine the data supporting adaptive resistance and the opposing roles of T cells in simultaneously promoting both anti-tumor immunity and immune suppression within the tumor microenvironment. The clinical implications of adaptive resistance in the design and application of immunotherapeutic strategies is also discussed.
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Affiliation(s)
- A J Robert McGray
- Center for Immunotherapy, Roswell Park Cancer Institute, Buffalo, NY, USA.
| | - Jonathan Bramson
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
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82
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Gameiro SR, Malamas AS, Tsang KY, Ferrone S, Hodge JW. Inhibitors of histone deacetylase 1 reverse the immune evasion phenotype to enhance T-cell mediated lysis of prostate and breast carcinoma cells. Oncotarget 2016; 7:7390-402. [PMID: 26862729 PMCID: PMC4884926 DOI: 10.18632/oncotarget.7180] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 01/23/2016] [Indexed: 12/22/2022] Open
Abstract
The clinical promise of cancer immunotherapy relies on the premise that the immune system can recognize and eliminate tumor cells identified as non-self. However, tumors can evade host immune surveillance through multiple mechanisms, including epigenetic silencing of genes involved in antigen processing and immune recognition. Hence, there is an unmet clinical need to develop effective therapeutic strategies that can restore tumor immune recognition when combined with immunotherapy, such as immune checkpoint blockade and therapeutic cancer vaccines. We sought to examine the potential of clinically relevant exposure of prostate and breast human carcinoma cells to histone deacetylase (HDAC) inhibitors to reverse tumor immune escape to T-cell mediated lysis. Here we demonstrate that prostate (LNCAP) and breast (MDA-MB-231) carcinoma cells are more sensitive to T-cell mediated lysis in vitro after clinically relevant exposure to epigenetic therapy with either the pan-HDAC inhibitor vorinostat or the class I HDAC inhibitor entinostat. This pattern of immunogenic modulation was observed against a broad range of tumor-associated antigens, such as CEA, MUC1, PSA, and brachyury, and associated with augmented expression of multiple proteins involved in antigen processing and tumor immune recognition. Genetic and pharmacological inhibition studies identified HDAC1 as a key determinant in the reversal of carcinoma immune escape. Further, our findings suggest that the observed reversal of tumor immune evasion is driven by a response to cellular stress through activation of the unfolded protein response. This offers the rationale for combining HDAC inhibitors with immunotherapy, including therapeutic cancer vaccines.
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Affiliation(s)
- Sofia R Gameiro
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Anthony S Malamas
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kwong Y Tsang
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Soldano Ferrone
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - James W Hodge
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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83
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Liu M, Zhou J, Chen Z, Cheng ASL. Understanding the epigenetic regulation of tumours and their microenvironments: opportunities and problems for epigenetic therapy. J Pathol 2016; 241:10-24. [PMID: 27770445 DOI: 10.1002/path.4832] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/06/2016] [Accepted: 10/18/2016] [Indexed: 12/13/2022]
Abstract
The tumour microenvironment plays an instrumental role in cancer development, progression and treatment response/resistance. Accumulating evidence is underscoring the fundamental importance of epigenetic regulation in tumour immune evasion. Following many pioneering discoveries demonstrating malignant transformation through epigenetic anomalies ('epimutations'), there is also a growing emphasis on elucidating aberrant epigenetic mechanisms that reprogramme the milieu of tumour-associated immune and stromal cells towards an immunosuppressive state. Pharmacological inhibition of DNA methylation and histone modifications can augment the efficiency of immune checkpoint blockage, and unleash anti-tumour T-cell responses. However, these non-specific agents also represent a 'double-edged sword', as they can also reactivate gene transcription of checkpoint molecules, interrupting immune surveillance programmes. By understanding the impact of epigenetic control on the tumour microenvironment, rational combinatorial epigenetic and checkpoint blockage therapies have the potential to harness the immune system for the treatment of cancer. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Man Liu
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Jingying Zhou
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Zhiwei Chen
- AIDS Institute and Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, PR China
| | - Alfred Sze-Lok Cheng
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
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84
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Chacon JA, Schutsky K, Powell DJ. The Impact of Chemotherapy, Radiation and Epigenetic Modifiers in Cancer Cell Expression of Immune Inhibitory and Stimulatory Molecules and Anti-Tumor Efficacy. Vaccines (Basel) 2016; 4:E43. [PMID: 27854240 PMCID: PMC5192363 DOI: 10.3390/vaccines4040043] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/17/2016] [Accepted: 11/01/2016] [Indexed: 12/19/2022] Open
Abstract
Genomic destabilizers, such as radiation and chemotherapy, and epigenetic modifiers are used for the treatment of cancer due to their apoptotic effects on the aberrant cells. However, these therapies may also induce widespread changes within the immune system and cancer cells, which may enable tumors to avoid immune surveillance and escape from host anti-tumor immunity. Genomic destabilizers can induce immunogenic death of tumor cells, but also induce upregulation of immune inhibitory ligands on drug-resistant cells, resulting in tumor progression. While administration of immunomodulatory antibodies that block the interactions between inhibitory receptors on immune cells and their ligands on tumor cells can mediate cancer regression in a subset of treated patients, it is crucial to understand how genomic destabilizers alter the immune system and malignant cells, including which inhibitory molecules, receptors and/or ligands are upregulated in response to genotoxic stress. Knowledge gained in this area will aid in the rational design of trials that combine genomic destabilizers, epigenetic modifiers and immunotherapeutic agents that may be synergized to improve clinical responses and prevent tumor escape from the immune system. Our review article describes the impact genomic destabilizers, such as radiation and chemotherapy, and epigenetic modifiers have on anti-tumor immunity and the tumor microenvironment. Although genomic destabilizers cause DNA damage on cancer cells, these therapies can also have diverse effects on the immune system, promote immunogenic cell death or survival and alter the cancer cell expression of immune inhibitor molecules.
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Affiliation(s)
- Jessica Ann Chacon
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Keith Schutsky
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Daniel J Powell
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
- Department of Pathology and Laboratory Medicine, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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85
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de Charette M, Marabelle A, Houot R. Turning tumour cells into antigen presenting cells: The next step to improve cancer immunotherapy? Eur J Cancer 2016; 68:134-147. [PMID: 27755997 DOI: 10.1016/j.ejca.2016.09.010] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 09/09/2016] [Indexed: 12/31/2022]
Abstract
Downregulation/loss of the antigen presentation is a major immune escape mechanism in cancer. It allows tumour cells to become 'invisible' and avoid immune attack by antitumour T cells. In tumour harbouring properties of professional antigen presenting cells (i.e. tumour B cells in lymphoma), downregulation/loss of the antigen presentation may also prevent direct priming of naïve T cells by tumour cells. Here, we review treatments that may induce/restore antigen presentation by the tumour cells. These treatments may increase the generation of antitumour T cells and/or their capacity to recognise and eliminate tumour cells. By forcing tumour cells to present their antigens, these treatments may sensitise patients to T cell-based immunotherapies, including checkpoint inhibitors.
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Affiliation(s)
| | - Aurélien Marabelle
- Gustave Roussy, Université Paris-Saclay, Département d'Innovation Thérapeutique et d'Essais Précoces, Villejuif, F-94805, France; INSERM U1015, Villejuif, F-94805, France
| | - Roch Houot
- CHU Rennes, Service Hématologie Clinique, F-35033, Rennes, France; INSERM, U917, F-35043, Rennes, France.
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86
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Saranchova I, Han J, Huang H, Fenninger F, Choi KB, Munro L, Pfeifer C, Welch I, Wyatt AW, Fazli L, Gleave ME, Jefferies WA. Discovery of a Metastatic Immune Escape Mechanism Initiated by the Loss of Expression of the Tumour Biomarker Interleukin-33. Sci Rep 2016; 6:30555. [PMID: 27619158 PMCID: PMC5020406 DOI: 10.1038/srep30555] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 06/27/2016] [Indexed: 01/03/2023] Open
Abstract
A new paradigm for understanding immune-surveillance and immune escape in cancer is described here. Metastatic carcinomas express reduced levels of IL-33 and diminished levels of antigen processing machinery (APM), compared to syngeneic primary tumours. Complementation of IL-33 expression in metastatic tumours upregulates APM expression and functionality of major histocompatibility complex (MHC)-molecules, resulting in reduced tumour growth rates and a lower frequency of circulating tumour cells. Parallel studies in humans demonstrate that low tumour expression of IL-33 is an immune biomarker associated with recurrent prostate and kidney renal clear cell carcinomas. Thus, IL-33 has a significant role in cancer immune-surveillance against primary tumours, which is lost during the metastatic transition that actuates immune escape in cancer.
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Affiliation(s)
- Iryna Saranchova
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4.,Department of Microbiology &Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3
| | - Jeffrey Han
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4.,Department of Microbiology &Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3
| | - Hui Huang
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4.,Department of Microbiology &Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3
| | - Franz Fenninger
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4.,Department of Microbiology &Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3
| | - Kyung Bok Choi
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4
| | - Lonna Munro
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4
| | - Cheryl Pfeifer
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4
| | - Ian Welch
- Department of Animal Care Services, University of British Columbia, 4145 Wesbrook Mall, Vancouver BC Canada V6T 1W5
| | - Alexander W Wyatt
- Department of Urologic Sciences, University of British Columbia Gordon &Leslie Diamond Health Care Centre, Level 6, 2775 Laurel Street, Vancouver, BC Canada V5Z 1M9.,The Vancouver Prostate Centre, University of British Columbia 2660 Oak Street, Vancouver, BC Canada V6H 3Z6
| | - Ladan Fazli
- Department of Urologic Sciences, University of British Columbia Gordon &Leslie Diamond Health Care Centre, Level 6, 2775 Laurel Street, Vancouver, BC Canada V5Z 1M9.,The Vancouver Prostate Centre, University of British Columbia 2660 Oak Street, Vancouver, BC Canada V6H 3Z6
| | - Martin E Gleave
- Department of Urologic Sciences, University of British Columbia Gordon &Leslie Diamond Health Care Centre, Level 6, 2775 Laurel Street, Vancouver, BC Canada V5Z 1M9.,The Vancouver Prostate Centre, University of British Columbia 2660 Oak Street, Vancouver, BC Canada V6H 3Z6
| | - Wilfred A Jefferies
- The Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, BC Canada V6T 1Z4.,Department of Microbiology &Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3.,Department of Medical Genetics, University of British Columbia 1364 - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3.,Department of Zoology, University of British Columbia 4200 - 6270 University Blvd, Vancouver, BC Canada V6T 1Z4.,Centre for Blood Research at the University of British Columbia 4th Floor - 2350 Health Sciences Mall, Vancouver, BC Canada V6T 1Z3.,Djavad Mowafaghian Centre for Brain Health at the University of British Columbia 2215 Wesbrook Mall, Vancouver BC Canada V6T 1Z3
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87
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Ellerhoff TP, Berchtold S, Venturelli S, Burkard M, Smirnow I, Wulff T, Lauer UM. Novel epi-virotherapeutic treatment of pancreatic cancer combining the oral histone deacetylase inhibitor resminostat with oncolytic measles vaccine virus. Int J Oncol 2016; 49:1931-1944. [DOI: 10.3892/ijo.2016.3675] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/22/2016] [Indexed: 11/05/2022] Open
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HDAC Inhibitors as Epigenetic Regulators of the Immune System: Impacts on Cancer Therapy and Inflammatory Diseases. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8797206. [PMID: 27556043 PMCID: PMC4983322 DOI: 10.1155/2016/8797206] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 06/08/2016] [Accepted: 06/29/2016] [Indexed: 01/13/2023]
Abstract
Histone deacetylase (HDAC) inhibitors are powerful epigenetic regulators that have enormous therapeutic potential and have pleiotropic effects at the cellular and systemic levels. To date, HDAC inhibitors are used clinically for a wide variety of disorders ranging from hematopoietic malignancies to psychiatric disorders, are known to have anti-inflammatory properties, and are in clinical trials for several other diseases. In addition to influencing gene expression, HDAC enzymes also function as part of large, multisubunit complexes which have many nonhistone targets, alter signaling at the cellular and systemic levels, and result in divergent and cell-type specific effects. Thus, the effects of HDAC inhibitor treatment are too intricate to completely understand with current knowledge but the ability of HDAC inhibitors to modulate the immune system presents intriguing therapeutic possibilities. This review will explore the complexity of HDAC inhibitor treatment at the cellular and systemic levels and suggest strategies for effective use of HDAC inhibitors in biomedical research, focusing on the ability of HDAC inhibitors to modulate the immune system. The possibility of combining the documented anticancer effects and newly emerging immunomodulatory effects of HDAC inhibitors represents a promising new combinatorial therapeutic approach for HDAC inhibitor treatments.
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89
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Nayama M, Collinet P, Salzet M, Vinatier D. [Immunological aspects of ovarian cancer: Therapeutic perspectives]. ACTA ACUST UNITED AC 2016; 45:1020-1036. [PMID: 27320132 DOI: 10.1016/j.jgyn.2016.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 05/07/2016] [Accepted: 05/13/2016] [Indexed: 01/09/2023]
Abstract
Ovarian cancer is recognized by the immunological system of its host. Initially, it is effective to destroy and eliminate the cancer. But gradually, resistant tumor cells more aggressive and those able to protect themselves by inducing immune tolerance will be selected. Immunotherapy to be effective should consider both components of immune response with an action on cytotoxic immune effectors and action on tolerance mechanisms. The manipulations of the immune system should be cautious, because the immune effects are not isolated. A theoretically efficient handling may simultaneously cause an adverse effect which was not envisaged and could neutralize the benefits of treatment. Knowledge of tolerance mechanisms set up by the tumor is for the clinician a prerequisite before they prescribe these treatments. For each cancer, the knowledge of its immunological status is a prerequisite to propose adapted immunological therapies.
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Affiliation(s)
- M Nayama
- Service de gynécologie obstétrique, maternité Issaka-Gazoby, BP 10975, Niamey, Niger
| | - P Collinet
- CHU de Lille, 59000 Lille, France; Département universitaire de gynécologie obstétrique, université Nord-de-France, 59045 Lille cedex, France
| | - M Salzet
- EA 4550, IFR 147, laboratoire PRISM : protéomique, réponse inflammatoire, spectrométrie de Masse, université Lille 1, bâtiment SN3, 1(er) étage, 59655 Villeneuve d'Ascq cedex, France
| | - D Vinatier
- CHU de Lille, 59000 Lille, France; EA 4550, IFR 147, laboratoire PRISM : protéomique, réponse inflammatoire, spectrométrie de Masse, université Lille 1, bâtiment SN3, 1(er) étage, 59655 Villeneuve d'Ascq cedex, France; Département universitaire de gynécologie obstétrique, université Nord-de-France, 59045 Lille cedex, France.
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90
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Newbold A, Falkenberg KJ, Prince HM, Johnstone RW. How do tumor cells respond to HDAC inhibition? FEBS J 2016; 283:4032-4046. [PMID: 27112360 DOI: 10.1111/febs.13746] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/30/2016] [Accepted: 04/22/2016] [Indexed: 02/06/2023]
Abstract
It is now well recognized that mutations, deregulated expression, and aberrant recruitment of epigenetic readers, writers, and erasers are fundamentally important processes in the onset and maintenance of many human tumors. The molecular, biological, and biochemical characteristics of a particular class of epigenetic erasers, the histone deacetylases (HDACs), have been extensively studied and small-molecule HDAC inhibitors (HDACis) have now been clinically approved for the treatment of human hemopoietic malignancies. This review explores our current understanding of the biological and molecular effects on tumor cells following HDACi treatment. The predominant responses include induction of tumor cell death and inhibition of proliferation that in experimental models have been linked to therapeutic efficacy. However, tumor cell-intrinsic responses to HDACi, including modulating tumor immunogenicity have also been described and may have substantial roles in mediating the antitumor effects of HDACi. We posit that the field has failed to fully reconcile the biological consequences of exposure to HDACis with the molecular events that underpin these responses, however progress is being made. Understanding the pleiotrophic activities of HDACis on tumor cells will hopefully fast track the development of more potent and selective HDACi that may be used alone or in combination to improve patient outcomes.
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Affiliation(s)
- Andrea Newbold
- Cancer Therapeutics Program, The Peter MacCallum Cancer Centre, East Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Vic., Australia
| | | | - H Miles Prince
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Vic., Australia.,Division of Cancer Medicine, The Peter MacCallum Cancer Centre, East Melbourne, Vic., Australia
| | - Ricky W Johnstone
- Cancer Therapeutics Program, The Peter MacCallum Cancer Centre, East Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Vic., Australia
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91
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van der Burg SH, Arens R, Ossendorp F, van Hall T, Melief CJM. Vaccines for established cancer: overcoming the challenges posed by immune evasion. Nat Rev Cancer 2016; 16:219-33. [PMID: 26965076 DOI: 10.1038/nrc.2016.16] [Citation(s) in RCA: 494] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Therapeutic vaccines preferentially stimulate T cells against tumour-specific epitopes that are created by DNA mutations or oncogenic viruses. In the setting of premalignant disease, carcinoma in situ or minimal residual disease, therapeutic vaccination can be clinically successful as monotherapy; however, in established cancers, therapeutic vaccines will require co-treatments to overcome immune evasion and to become fully effective. In this Review, we discuss the progress that has been made in overcoming immune evasion controlled by tumour cell-intrinsic factors and the tumour microenvironment. We summarize how therapeutic benefit can be maximized in patients with established cancers by improving vaccine design and by using vaccines to increase the effects of standard chemotherapies, to establish and/or maintain tumour-specific T cells that are re-energized by checkpoint blockade and other therapies, and to sustain the antitumour response of adoptively transferred T cells.
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Affiliation(s)
| | - Ramon Arens
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Ferry Ossendorp
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | | | - Cornelis J M Melief
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- ISA Pharmaceuticals, J. H. Oortweg 19, 2333 CH, Leiden, The Netherlands
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92
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Tedjaseputra A, Galli S, Ibrahim M, Harrison CN, McLornan DP. Histone deacetylase inhibitors in myeloproliferative neoplasms: current roles and future prospects. Expert Opin Orphan Drugs 2016. [DOI: 10.1517/21678707.2016.1149467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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93
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Kuan CS, See Too WC, Few LL. Sp1 and Sp3 Are the Transcription Activators of Human ek1 Promoter in TSA-Treated Human Colon Carcinoma Cells. PLoS One 2016; 11:e0147886. [PMID: 26807725 PMCID: PMC4725723 DOI: 10.1371/journal.pone.0147886] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 01/08/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Ethanolamine kinase (EK) catalyzes the phosphorylation of ethanolamine, the first step in the CDP-ethanolamine pathway for the biosynthesis of phosphatidylethanolamine (PE). Human EK exists as EK1, EK2α and EK2β isoforms, encoded by two separate genes, named ek1 and ek2. EK activity is stimulated by carcinogens and oncogenes, suggesting the involvement of EK in carcinogenesis. Currently, little is known about EK transcriptional regulation by endogenous or exogenous signals, and the ek gene promoter has never been studied. METHODOLOGY/PRINCIPAL FINDINGS In this report, we mapped the important regulatory regions in the human ek1 promoter. 5' deletion analysis and site-directed mutagenesis identified a Sp site at position (-40/-31) that was essential for the basal transcription of this gene. Treatment of HCT116 cells with trichostatin A (TSA), a histone deacetylase inhibitor, significantly upregulated the ek1 promoter activity through the Sp(-40/-31) site and increased the endogenous expression of ek1. Chromatin immunoprecipitation assay revealed that TSA increased the binding of Sp1, Sp3 and RNA polymerase II to the ek1 promoter in HCT116 cells. The effect of TSA on ek1 promoter activity was cell-line specific as TSA treatment did not affect ek1 promoter activity in HepG2 cells. CONCLUSION/SIGNIFICANCE In conclusion, we showed that Sp1 and Sp3 are not only essential for the basal transcription of the ek1 gene, their accessibility to the target site on the ek1 promoter is regulated by histone protein modification in a cell line dependent manner.
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Affiliation(s)
- Chee Sian Kuan
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Wei Cun See Too
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Ling Ling Few
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
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94
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Marchini A, Scott EM, Rommelaere J. Overcoming Barriers in Oncolytic Virotherapy with HDAC Inhibitors and Immune Checkpoint Blockade. Viruses 2016; 8:v8010009. [PMID: 26751469 PMCID: PMC4728569 DOI: 10.3390/v8010009] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/16/2015] [Accepted: 12/22/2015] [Indexed: 12/15/2022] Open
Abstract
Oncolytic viruses (OVs) target and destroy cancer cells while sparing their normal counterparts. These viruses have been evaluated in numerous studies at both pre-clinical and clinical levels and the recent Food and Drug Administration (FDA) approval of an oncolytic herpesvirus-based treatment raises optimism that OVs will become a therapeutic option for cancer patients. However, to improve clinical outcome, there is a need to increase OV efficacy. In addition to killing cancer cells directly through lysis, OVs can stimulate the induction of anti-tumour immune responses. The host immune system thus represents a "double-edged sword" for oncolytic virotherapy: on the one hand, a robust anti-viral response will limit OV replication and spread; on the other hand, the immune-mediated component of OV therapy may be its most important anti-cancer mechanism. Although the relative contribution of direct viral oncolysis and indirect, immune-mediated oncosuppression to overall OV efficacy is unclear, it is likely that an initial period of vigorous OV multiplication and lytic activity will most optimally set the stage for subsequent adaptive anti-tumour immunity. In this review, we consider the use of histone deacetylase (HDAC) inhibitors as a means of boosting virus replication and lessening the negative impact of innate immunity on the direct oncolytic effect. We also discuss an alternative approach, aimed at potentiating OV-elicited anti-tumour immunity through the blockade of immune checkpoints. We conclude by proposing a two-phase combinatorial strategy in which initial OV replication and spread is maximised through transient HDAC inhibition, with anti-tumour immune responses subsequently enhanced by immune checkpoint blockade.
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Affiliation(s)
- Antonio Marchini
- Infection, Inflammation and Cancer Program, Tumor Virology Division (F010), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany.
| | - Eleanor M Scott
- Infection, Inflammation and Cancer Program, Tumor Virology Division (F010), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany.
| | - Jean Rommelaere
- Infection, Inflammation and Cancer Program, Tumor Virology Division (F010), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany.
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95
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Gallagher SJ, Tiffen JC, Hersey P. Histone Modifications, Modifiers and Readers in Melanoma Resistance to Targeted and Immune Therapy. Cancers (Basel) 2015; 7:1959-82. [PMID: 26426052 PMCID: PMC4695870 DOI: 10.3390/cancers7040870] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 02/06/2023] Open
Abstract
The treatment of melanoma has been revolutionized by new therapies targeting MAPK signaling or the immune system. Unfortunately these therapies are hindered by either primary resistance or the development of acquired resistance. Resistance mechanisms involving somatic mutations in genes associated with resistance have been identified in some cases of melanoma, however, the cause of resistance remains largely unexplained in other cases. The importance of epigenetic factors targeting histones and histone modifiers in driving the behavior of melanoma is only starting to be unraveled and provides significant opportunity to combat the problems of therapy resistance. There is also an increasing ability to target these epigenetic changes with new drugs that inhibit these modifications to either prevent or overcome resistance to both MAPK inhibitors and immunotherapy. This review focuses on changes in histones, histone reader proteins and histone positioning, which can mediate resistance to new therapeutics and that can be targeted for future therapies.
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Affiliation(s)
- Stuart J Gallagher
- Melanoma Immunology and Oncology Group, Centenary Institute, University of Sydney, Camperdown 2050, Australia.
- Melanoma Institute Australia, Crow's Nest 2065, Sydney, Australia.
| | - Jessamy C Tiffen
- Melanoma Immunology and Oncology Group, Centenary Institute, University of Sydney, Camperdown 2050, Australia.
- Melanoma Institute Australia, Crow's Nest 2065, Sydney, Australia.
| | - Peter Hersey
- Melanoma Immunology and Oncology Group, Centenary Institute, University of Sydney, Camperdown 2050, Australia.
- Melanoma Institute Australia, Crow's Nest 2065, Sydney, Australia.
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96
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Thuring C, Follin E, Geironson L, Freyhult E, Junghans V, Harndahl M, Buus S, Paulsson KM. HLA class I is most tightly linked to levels of tapasin compared with other antigen-processing proteins in glioblastoma. Br J Cancer 2015; 113:952-62. [PMID: 26313662 PMCID: PMC4578088 DOI: 10.1038/bjc.2015.297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 07/15/2014] [Accepted: 07/25/2015] [Indexed: 12/24/2022] Open
Abstract
Background: Tumour cells can evade the immune system by dysregulation of human leukocyte antigens (HLA-I). Low quantity and/or altered quality of HLA-I cell surface expression is the result of either HLA-I alterations or dysregulations of proteins of the antigen-processing machinery (APM). Tapasin is an APM protein dedicated to the maturation of HLA-I and dysregulation of tapasin has been linked to higher malignancy in several different tumours. Methods: We studied the expression of APM components and HLA-I, as well as HLA-I tapasin-dependency profiles in glioblastoma tissues and corresponding cell lines. Results: Tapasin displayed the strongest correlation to HLA-I heavy chain but also clustered with β2-microglobulin, transporter associated with antigen processing (TAP) and LMP. Moreover, tapasin also correlated to survival of glioblastoma patients. Some APM components, for example, TAP1/TAP2 and LMP2/LMP7, showed variable but coordinated expression, whereas ERAP1/ERAP2 displayed an imbalanced expression pattern. Furthermore, analysis of HLA-I profiles revealed variable tapasin dependence of HLA-I allomorphs in glioblastoma patients. Conclusions: Expression of APM proteins is highly variable between glioblastomas. Tapasin stands out as the APM component strongest correlated to HLA-I expression and we proved that HLA-I profiles in glioblastoma patients include tapasin-dependent allomorphs. The level of tapasin was also correlated with patient survival time. Our results support the need for individualisation of immunotherapy protocols.
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Affiliation(s)
- Camilla Thuring
- Immunology Section, Department of Experimental Medical Science, Lund University, SE-221 84 Lund, Sweden
| | - Elna Follin
- Immunology Section, Department of Experimental Medical Science, Lund University, SE-221 84 Lund, Sweden
| | - Linda Geironson
- Immunology Section, Department of Experimental Medical Science, Lund University, SE-221 84 Lund, Sweden
| | - Eva Freyhult
- Science for Life Laboratory, Bioinformatics Infrastructure for Life Sciences, Department of Medical Sciences, Cancer Pharmacology and Computational Medicine, Uppsala University, SE-751 05 Uppsala, Sweden
| | - Victoria Junghans
- Immunology Section, Department of Experimental Medical Science, Lund University, SE-221 84 Lund, Sweden
| | - Mikkel Harndahl
- Department of Experimental Immunology, Institute of International Health, Immunology and Microbiology, DK-2200 Copenhagen, Denmark
| | - Søren Buus
- Department of Experimental Immunology, Institute of International Health, Immunology and Microbiology, DK-2200 Copenhagen, Denmark
| | - Kajsa M Paulsson
- Immunology Section, Department of Experimental Medical Science, Lund University, SE-221 84 Lund, Sweden
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97
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Wachowska M, Muchowicz A, Golab J. Targeting Epigenetic Processes in Photodynamic Therapy-Induced Anticancer Immunity. Front Oncol 2015; 5:176. [PMID: 26284197 PMCID: PMC4519687 DOI: 10.3389/fonc.2015.00176] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/16/2015] [Indexed: 01/04/2023] Open
Abstract
Photodynamic therapy (PDT) of cancer is an approved therapeutic procedure that generates oxidative stress leading to cell death of tumor and stromal cells. Cell death resulting from oxidative damage to intracellular components leads to the release of damage-associated molecular patterns (DAMPs) that trigger robust inflammatory response and creates local conditions for effective sampling of tumor-associated antigens (TAA) by antigen-presenting cells. The latter can trigger development of TAA-specific adaptive immune response. However, due to a number of mechanisms, including epigenetic regulation of TAA expression, tumor cells evade immune recognition. Therefore, numerous approaches are being developed to combine PDT with immunotherapies to allow development of systemic immunity. In this review, we describe immunoregulatory mechanisms of epigenetic treatments that were shown to restore the expression of epigenetically silenced or down-regulated major histocompatibility complex molecules as well as TAA. We also discuss the results of our recent studies showing that epigenetic treatments based on administration of methyltransferase inhibitors in combination with PDT can release effective mechanisms leading to development of antitumor immunity and potentiated antitumor effects.
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Affiliation(s)
| | - Angelika Muchowicz
- Department of Immunology, Medical University of Warsaw , Warsaw , Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw , Warsaw , Poland
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98
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Kroesen M, Gielen P, Brok IC, Armandari I, Hoogerbrugge PM, Adema GJ. HDAC inhibitors and immunotherapy; a double edged sword? Oncotarget 2015; 5:6558-72. [PMID: 25115382 PMCID: PMC4196144 DOI: 10.18632/oncotarget.2289] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Epigenetic modifications, like histone acetylation, are essential for regulating gene expression within cells. Cancer cells acquire pathological epigenetic modifications resulting in gene expression patterns that facilitate and sustain tumorigenesis. Epigenetic manipulation therefore is emerging as a novel targeted therapy for cancer. Histone Acetylases (HATs) and Histone Deacetylases (HDACs) regulate histone acetylation and hence gene expression. Histone deacetylase (HDAC) inhibitors are well known to affect cancer cell viability and biology and are already in use for the treatment of cancer patients. Immunotherapy can lead to clinical benefit in selected cancer patients, especially in patients with limited disease after tumor debulking. HDAC inhibitors can potentially synergize with immunotherapy by elimination of tumor cells. The direct effects of HDAC inhibitors on immune cell function, however, remain largely unexplored. Initial data have suggested HDAC inhibitors to be predominantly immunosuppressive, but more recent reports have challenged this view. In this review we will discuss the effects of HDAC inhibitors on tumor cells and different immune cell subsets, synergistic interactions and possible mechanisms. Finally, we will address future challenges and potential application of HDAC inhibitors in immunocombination therapy of cancer.
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Affiliation(s)
- Michiel Kroesen
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands; Department of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Paul Gielen
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands; These authors contributed equally to this work
| | - Ingrid C Brok
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands; These authors contributed equally to this work
| | - Inna Armandari
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Peter M Hoogerbrugge
- Department of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, The Netherlands; Princes Máxima Center for Pediatric Oncology, The Bilt, The Netherlands
| | - Gosse J Adema
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
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99
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Vlková V, Štěpánek I, Hrušková V, Šenigl F, Mayerová V, Šrámek M, Šímová J, Bieblová J, Indrová M, Hejhal T, Dérian N, Klatzmann D, Six A, Reiniš M. Epigenetic regulations in the IFNγ signalling pathway: IFNγ-mediated MHC class I upregulation on tumour cells is associated with DNA demethylation of antigen-presenting machinery genes. Oncotarget 2015; 5:6923-35. [PMID: 25071011 PMCID: PMC4196173 DOI: 10.18632/oncotarget.2222] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Downregulation of MHC class I expression on tumour cells, a common mechanism by which tumour cells can escape from specific immune responses, can be associated with coordinated silencing of antigen-presenting machinery genes. The expression of these genes can be restored by IFNγ. In this study we documented association of DNA demethylation of selected antigen-presenting machinery genes located in the MHC genomic locus (TAP-1, TAP-2, LMP-2, LMP-7) upon IFNγ treatment with MHC class I upregulation on tumour cells in several MHC class I-deficient murine tumour cell lines (TC-1/A9, TRAMP-C2, MK16 and MC15). Our data also documented higher methylation levels in these genes in TC-1/A9 cells, as compared to their parental MHC class I-positive TC-1 cells. IFNγ-mediated DNA demethylation was relatively fast in comparison with demethylation induced by DNA methyltransferase inhibitor 5-azacytidine, and associated with increased histone H3 acetylation in the promoter regions of APM genes. Comparative transcriptome analysis in distinct MHC class I-deficient cell lines upon their treatment with either IFNγ or epigenetic agents revealed that a set of genes, significantly enriched for the antigen presentation pathway, was regulated in the same manner. Our data demonstrate that IFNγ acts as an epigenetic modifier when upregulating the expression of antigen-presenting machinery genes.
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Affiliation(s)
- Veronika Vlková
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Ivan Štěpánek
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Veronika Hrušková
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Filip Šenigl
- Department of Viral and Cellular Genetics, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Veronika Mayerová
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Martin Šrámek
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Jana Šímová
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Jana Bieblová
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Marie Indrová
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Tomáš Hejhal
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
| | - Nicolas Dérian
- UPMC Univ Paris 06, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; CNRS, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; INSERM, UMR_S 959, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, CIC-BTi Biotherapy & Département Hospitalo-Universitaire (DHU) Inflammation-Immunopathology-Biotherapy (i2B), Paris, France
| | - David Klatzmann
- UPMC Univ Paris 06, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; CNRS, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; INSERM, UMR_S 959, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, CIC-BTi Biotherapy & Département Hospitalo-Universitaire (DHU) Inflammation-Immunopathology-Biotherapy (i2B), Paris, France
| | - Adrien Six
- UPMC Univ Paris 06, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; CNRS, UMR 7211, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; INSERM, UMR_S 959, Immunology-Immunopathology-Immunotherapy (I3), Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, CIC-BTi Biotherapy & Département Hospitalo-Universitaire (DHU) Inflammation-Immunopathology-Biotherapy (i2B), Paris, France
| | - Milan Reiniš
- Department of Tumour Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, v. v. i., Prague
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100
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Yu XD, Guo ZS. Epigenetic drugs for cancer treatment and prevention: mechanisms of action. Biomol Concepts 2015; 1:239-51. [PMID: 25962000 DOI: 10.1515/bmc.2010.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This review provides a brief overview of the basic principles of epigenetic gene regulation and then focuses on recent development of epigenetic drugs for cancer treatment and prevention with an emphasis on the molecular mechanisms of action. The approved epigenetic drugs are either inhibitors of DNA methyltransferases or histone deacetylases (HDACs). Future epigenetic drugs could include inhibitors for histone methyltransferases and histone demethylases and other epigenetic enzymes. Epigenetic drugs often function in two separate yet interrelated ways. First, as epigenetic drugs per se, they modulate the epigenomes of premalignant and malignant cells to reverse deregulated epigenetic mechanisms, leading to an effective therapeutic strategy (epigenetic therapy). Second, HDACs and other epigenetic enzymes also target non-histone proteins that have regulatory roles in cell proliferation, migration and cell death. Through these processes, these drugs induce cancer cell growth arrest, cell differentiation, inhibition of tumor angiogenesis, or cell death via apoptosis, necrosis, autophagy or mitotic catastrophe (chemotherapy). As they modulate genes which lead to enhanced chemosensitivity, immunogenicity or dampened innate antiviral response of cancer cells, epigenetic drugs often show better efficacy when combined with chemotherapy, immunotherapy or oncolytic virotherapy. In chemoprevention, dietary phytochemicals such as epigallocatechin-3-gallate and sulforaphane act as epigenetic agents and show efficacy by targeting both cancer cells and the tumor microenvironment. Further understanding of how epigenetic mechanisms function in carcinogenesis and cancer progression as well as in normal physiology will enable us to establish a new paradigm for intelligent drug design in the treatment and prevention of cancer.
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