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Zhou C, Zhao D, Wu C, Wu Z, Zhang W, Chen S, Zhao X, Wu S. Role of histone deacetylase inhibitors in non-neoplastic diseases. Heliyon 2024; 10:e33997. [PMID: 39071622 PMCID: PMC11283006 DOI: 10.1016/j.heliyon.2024.e33997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Background Epigenetic dysregulation has been implicated in the development and progression of a variety of human diseases, but epigenetic changes are reversible, and epigenetic enzymes and regulatory proteins can be targeted using small molecules. Histone deacetylase inhibitors (HDACis), as a class of epigenetic drugs, are widely used to treat various cancers and other diseases involving abnormal gene expression. Results Specially, HDACis have emerged as a promising strategy to enhance the therapeutic effect of non-neoplastic conditions, including neurological disorders, cardiovascular diseases, renal diseases, autoimmune diseases, inflammatory diseases, infectious diseases and rare diseases, along with their related mechanisms. However, their clinical efficacy has been limited by drug resistance and toxicity. Conclusions To date, most clinical trials of HDAC inhibitors have been related to the treatment of cancer rather than the treatment of non-cancer diseases, for which experimental studies are gradually underway. Discussions regarding non-neoplastic diseases often concentrate on specific disease types. Therefore, this review highlights the development of HDACis and their potential therapeutic applications in non-neoplastic diseases, either as monotherapy or in combination with other drugs or therapies.
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Affiliation(s)
- Chunxiao Zhou
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Dengke Zhao
- Harbin Medical University, Harbin, 150000, China
| | - Chunyan Wu
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Zhimin Wu
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Wen Zhang
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Shilv Chen
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Xindong Zhao
- College of Medicine, Qingdao University, Qingdao, 266000, China
| | - Shaoling Wu
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
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2
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Martín-Guerrero SM, Martín-Estebané M, Lara Ordóñez AJ, Cánovas M, Martín-Oliva D, González-Maeso J, Cutillas PR, López-Giménez JF. Maternal Immune Activation imprints translational dysregulation and differential MAP2 phosphorylation in descendant neural stem cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.07.597886. [PMID: 38895311 PMCID: PMC11185659 DOI: 10.1101/2024.06.07.597886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Alterations induced by maternal immune activation (MIA) during gestation impact the subsequent neurodevelopment of progeny, a process that in humans, has been linked to the development of several neuropsychiatric conditions. To undertake a comprehensive examination of the molecular mechanisms governing MIA, we have devised an in vitro model based on neural stem cells (NSCs) sourced from fetuses carried by animals subjected to Poly I:C treatment. These neural progenitors demonstrate proliferative capacity and can be effectively differentiated into both neurons and glial cells. Transcriptomic, proteomic, and phosphoproteomic analyses conducted on these cellular models, in conjunction with counterparts from control treatments, revealed discernible shifts in the expression levels of a specific subset of proteins implicated in neuronal function. Noteworthy, we found an absence of congruence between these alterations at the transcriptomic level, suggesting that differences in protein translation contribute to the observed dysregulation. Furthermore, the phosphoproteomic data highlighted a discernible discrepancy in the basal phosphorylation of proteins between differentiated cells from both experimental groups, particularly within proteins associated with cytoskeletal architecture and synaptic functionality, notably those belonging to the MAP family. Observed alterations in MAP phosphorylation were found to potentially have functional consequences as they correlate with changes in neuronal plasticity and the establishment of neuronal synapses. Our data agrees with previous published observations and further underscore the importance of MAP2 phosphorylation state on its function and the impact that this protein has in neuronal structure and function.
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Shetty MG, Pai P, Padavu M, Satyamoorthy K, Kampa Sundara B. Synergistic therapeutics: Co-targeting histone deacetylases and ribonucleotide reductase for enhanced cancer treatment. Eur J Med Chem 2024; 269:116324. [PMID: 38520762 DOI: 10.1016/j.ejmech.2024.116324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/25/2024]
Abstract
The development of cancer is influenced by several variables, including altered protein expression, and signaling pathways. Cancers are inherently heterogeneous and exhibit genetic and epigenetic aberrations; therefore, developing therapies that act on numerous biological targets is encouraged. To achieve this, two approaches are employed: combination therapy and dual/multiple targeting chemotherapeutics. Two enzymes, histone deacetylases (HDACs) and ribonucleotide reductase (RR), are crucial for several biological functions, including replication and repair of DNA, division of cells, transcription of genes, etc. However, it has been noted that different cancers exhibit abnormal functions of these enzymes. Potent inhibitors for each of these proteins have been extensively researched. Many medications based on these inhibitors have been successfully food and drug administration (FDA) approved, and the majority are undergoing various stages of clinical testing. This review discusses various studies of HDAC and RR inhibitors in combination therapy and dual-targeting chemotherapeutics.
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Affiliation(s)
- Manasa Gangadhar Shetty
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Padmini Pai
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Mythili Padavu
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Kapaettu Satyamoorthy
- Shri Dharmasthala Manjunatheshwara (SDM) University, Manjushree Nagar, Sattur, Dharwad, 580009, India
| | - Babitha Kampa Sundara
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.
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4
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Mecca M, Picerno S, Cortellino S. The Killer's Web: Interconnection between Inflammation, Epigenetics and Nutrition in Cancer. Int J Mol Sci 2024; 25:2750. [PMID: 38473997 DOI: 10.3390/ijms25052750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Inflammation is a key contributor to both the initiation and progression of tumors, and it can be triggered by genetic instability within tumors, as well as by lifestyle and dietary factors. The inflammatory response plays a critical role in the genetic and epigenetic reprogramming of tumor cells, as well as in the cells that comprise the tumor microenvironment. Cells in the microenvironment acquire a phenotype that promotes immune evasion, progression, and metastasis. We will review the mechanisms and pathways involved in the interaction between tumors, inflammation, and nutrition, the limitations of current therapies, and discuss potential future therapeutic approaches.
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Affiliation(s)
- Marisabel Mecca
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, PZ, Italy
| | - Simona Picerno
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, PZ, Italy
| | - Salvatore Cortellino
- Laboratory of Preclinical and Translational Research, Responsible Research Hospital, 86100 Campobasso, CB, Italy
- Scuola Superiore Meridionale (SSM), Clinical and Translational Oncology, 80138 Naples, NA, Italy
- S.H.R.O. Italia Foundation ETS, 10060 Candiolo, TO, Italy
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5
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Rath S, Hawsawi YM, Alzahrani F, Khan MI. Epigenetic regulation of inflammation: The metabolomics connection. Semin Cell Dev Biol 2024; 154:355-363. [PMID: 36127262 DOI: 10.1016/j.semcdb.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/12/2022] [Accepted: 09/12/2022] [Indexed: 10/14/2022]
Abstract
Epigenetic factors are considered the regulator of complex machinery behind inflammatory disorders and significantly contributed to the expression of inflammation-associated genes. Epigenetic modifications modulate variation in the expression pattern of target genes without affecting the DNA sequence. The current knowledge of epigenetic research focused on their role in the pathogenesis of various inflammatory diseases that causes morbidity and mortality worldwide. Inflammatory diseases are categorized as acute and chronic based on the disease severity and are regulated by the expression pattern of various genes. Hence, understanding the role of epigenetic modifications during inflammation progression will contribute to the disease outcomes and therapeutic approaches. This review also focuses on the metabolomics approach associated with the study of inflammatory disorders. Inflammatory responses and metabolic regulation are highly integrated and various advanced techniques are adopted to study the metabolic signature molecules. Here we discuss several metabolomics approaches used to link inflammatory disorders and epigenetic changes. We proposed that deciphering the mechanism behind the inflammation-metabolism loop may have immense importance in biomarkers research and may act as a principal component in drug discovery as well as therapeutic applications.
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Affiliation(s)
- Suvasmita Rath
- Center of Environment, Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar 751004, Odisha, India
| | - Yousef M Hawsawi
- Research Center, King Faisal Specialist Hospital and Research Center, P.O. Box 40047, Jeddah 21499, Saudi Arabia; College of Medicine, Al-Faisal University, P.O. Box 50927, Riyadh 11533, Saudi Arabia.
| | - Faisal Alzahrani
- Department of Biochemistry, King Abdulaziz University (KAU), Jeddah 21577, Saudi Arabia; Embryonic Stem Cells Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammad Imran Khan
- Department of Biochemistry, King Abdulaziz University (KAU), Jeddah 21577, Saudi Arabia; Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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6
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Wang Y, Abrol R, Mak JYW, Das Gupta K, Ramnath D, Karunakaran D, Fairlie DP, Sweet MJ. Histone deacetylase 7: a signalling hub controlling development, inflammation, metabolism and disease. FEBS J 2023; 290:2805-2832. [PMID: 35303381 PMCID: PMC10952174 DOI: 10.1111/febs.16437] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/02/2022] [Accepted: 03/16/2022] [Indexed: 12/20/2022]
Abstract
Histone deacetylases (HDACs) catalyse removal of acetyl groups from lysine residues on both histone and non-histone proteins to control numerous cellular processes. Of the 11 zinc-dependent classical HDACs, HDAC4, 5, 7 and 9 are class IIa HDAC enzymes that regulate cellular and developmental processes through both enzymatic and non-enzymatic mechanisms. Over the last two decades, HDAC7 has been associated with key roles in numerous physiological and pathological processes. Molecular, cellular, in vivo and disease association studies have revealed that HDAC7 acts through multiple mechanisms to control biological processes in immune cells, osteoclasts, muscle, the endothelium and epithelium. This HDAC protein regulates gene expression, cell proliferation, cell differentiation and cell survival and consequently controls development, angiogenesis, immune functions, inflammation and metabolism. This review focuses on the cell biology of HDAC7, including the regulation of its cellular localisation and molecular mechanisms of action, as well as its associative and causal links with cancer and inflammatory, metabolic and fibrotic diseases. We also review the development status of small molecule inhibitors targeting HDAC7 and their potential for intervention in different disease contexts.
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Affiliation(s)
- Yizhuo Wang
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Rishika Abrol
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Jeffrey Y. W. Mak
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
| | - Kaustav Das Gupta
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Divya Ramnath
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Denuja Karunakaran
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - David P. Fairlie
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
- Australian Infectious Diseases Research CentreThe University of QueenslandSt. LuciaAustralia
| | - Matthew J. Sweet
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
- Australian Infectious Diseases Research CentreThe University of QueenslandSt. LuciaAustralia
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7
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Zahid S, Ali Y, Rashid S. Structural-based design of HD-TAC7 PROteolysis TArgeting chimeras (PROTACs) candidate transformations to abrogate SARS-CoV-2 infection. J Biomol Struct Dyn 2023; 41:14566-14581. [PMID: 36841549 DOI: 10.1080/07391102.2023.2183037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/16/2023] [Indexed: 02/27/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for about 672 million infections and 6.85 million deaths worldwide. Upon SARS-CoV-2 infection, Histone deacetylases (HDACs) hyperactivate the pro-inflammatory response resulting in stimulation of Acetyl-Coenzyme A and cholesterol for viral entry. HDAC3 inhibition results in the anti-inflammatory activity and reduction of pro-inflammatory cytokines that may restrict COVID-19 progression. Here, we have designed 44 conformational ensembles of previously known HD-TAC7 by enumerating torsions of dihedral angles tested for their binding preferences against HDAC3. Through scrutinizing their placements at active site and binding affinities, three hits were isolated. Cereblon (CRBN) is a well-known E3 ligase that facilitates Proteolysis Targeting Chimeras (PROTACs) targeting. Three entities, including HDAC3-binding moiety (4-acetamido-N-(2-amino-4 fluorophenyl) benzamide), a 6-carbon linker, and CRBN binding ligand (pomalidomide) were assembled to design 4 PROTACs followed by energy minimization and docking against HDAC3 and CRBN, respectively. Subsequent molecular dynamics (MD) and free energy analyses corroborated similar binding trends and favorable energy values. Among all cases, Met88, GLu106, Pro352, Trp380 and Trp388 residues of CRBN, and Pro23, Arg28, Lys194, Phe199, Leu266, Thr299 and Ile346 residues of HDAC3 were engaged in PROTAC binding. Thus, conformational dynamics of both HDAC3 and CRBN moieties are essential for the placement of PROTAC, resulting in target degradation. Overall, the proposed bifunctional small molecules may effectively target HDAC3, stimulating innate immune response to restrict COVID-19 hyperinflammation. This study supports the basis for designing new PROTACs by limiting the conformational search space that may prove more efficient for targeting the protein of interest.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Zahid
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Yasir Ali
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sajid Rashid
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
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McEwan F, Glazier JD, Hager R. The impact of maternal immune activation on embryonic brain development. Front Neurosci 2023; 17:1146710. [PMID: 36950133 PMCID: PMC10025352 DOI: 10.3389/fnins.2023.1146710] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/15/2023] [Indexed: 03/08/2023] Open
Abstract
The adult brain is a complex structure with distinct functional sub-regions, which are generated from an initial pool of neural epithelial cells within the embryo. This transition requires a number of highly coordinated processes, including neurogenesis, i.e., the generation of neurons, and neuronal migration. These take place during a critical period of development, during which the brain is particularly susceptible to environmental insults. Neurogenesis defects have been associated with the pathogenesis of neurodevelopmental disorders (NDDs), such as autism spectrum disorder and schizophrenia. However, these disorders have highly complex multifactorial etiologies, and hence the underlying mechanisms leading to aberrant neurogenesis continue to be the focus of a significant research effort and have yet to be established. Evidence from epidemiological studies suggests that exposure to maternal infection in utero is a critical risk factor for NDDs. To establish the biological mechanisms linking maternal immune activation (MIA) and altered neurodevelopment, animal models have been developed that allow experimental manipulation and investigation of different developmental stages of brain development following exposure to MIA. Here, we review the changes to embryonic brain development focusing on neurogenesis, neuronal migration and cortical lamination, following MIA. Across published studies, we found evidence for an acute proliferation defect in the embryonic MIA brain, which, in most cases, is linked to an acceleration in neurogenesis, demonstrated by an increased proportion of neurogenic to proliferative divisions. This is accompanied by disrupted cortical lamination, particularly in the density of deep layer neurons, which may be a consequence of the premature neurogenic shift. Although many aspects of the underlying pathways remain unclear, an altered epigenome and mitochondrial dysfunction are likely mechanisms underpinning disrupted neurogenesis in the MIA model. Further research is necessary to delineate the causative pathways responsible for the variation in neurogenesis phenotype following MIA, which are likely due to differences in timing of MIA induction as well as sex-dependent variation. This will help to better understand the underlying pathogenesis of NDDs, and establish therapeutic targets.
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9
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Zhang S, Meng Y, Zhou L, Qiu L, Wang H, Su D, Zhang B, Chan K, Han J. Targeting epigenetic regulators for inflammation: Mechanisms and intervention therapy. MedComm (Beijing) 2022; 3:e173. [PMID: 36176733 PMCID: PMC9477794 DOI: 10.1002/mco2.173] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/11/2022] Open
Abstract
Emerging evidence indicates that resolution of inflammation is a critical and dynamic endogenous process for host tissues defending against external invasive pathogens or internal tissue injury. It has long been known that autoimmune diseases and chronic inflammatory disorders are characterized by dysregulated immune responses, leading to excessive and uncontrol tissue inflammation. The dysregulation of epigenetic alterations including DNA methylation, posttranslational modifications to histone proteins, and noncoding RNA expression has been implicated in a host of inflammatory disorders and the immune system. The inflammatory response is considered as a critical trigger of epigenetic alterations that in turn intercede inflammatory actions. Thus, understanding the molecular mechanism that dictates the outcome of targeting epigenetic regulators for inflammatory disease is required for inflammation resolution. In this article, we elucidate the critical role of the nuclear factor‐κB signaling pathway, JAK/STAT signaling pathway, and the NLRP3 inflammasome in chronic inflammatory diseases. And we formulate the relationship between inflammation, coronavirus disease 2019, and human cancers. Additionally, we review the mechanism of epigenetic modifications involved in inflammation and innate immune cells. All that matters is that we propose and discuss the rejuvenation potential of interventions that target epigenetic regulators and regulatory mechanisms for chronic inflammation‐associated diseases to improve therapeutic outcomes.
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Affiliation(s)
- Su Zhang
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Yang Meng
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Lian Zhou
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Lei Qiu
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Heping Wang
- Department of Neurosurgery Tongji Hospital of Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Dan Su
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
| | - Bo Zhang
- Laboratory of Cancer Epigenetics and Genomics Department of Gastrointestinal Surgery Frontiers Science Center for Disease‐Related Molecular Network West China Hospital Sichuan University Chengdu China
| | - Kui‐Ming Chan
- Department of Biomedical Sciences City University of Hong Kong Hong Kong China
| | - Junhong Han
- Laboratory of Cancer Epigenetics and Genomics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu China
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Karami Fath M, Azargoonjahromi A, Soofi A, Almasi F, Hosseinzadeh S, Khalili S, Sheikhi K, Ferdousmakan S, Owrangi S, Fahimi M, Zalpoor H, Nabi Afjadi M, Payandeh Z, Pourzardosht N. Current understanding of epigenetics role in melanoma treatment and resistance. Cancer Cell Int 2022; 22:313. [PMID: 36224606 PMCID: PMC9555085 DOI: 10.1186/s12935-022-02738-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/19/2022] [Indexed: 11/30/2022] Open
Abstract
Melanoma is the most aggressive form of skin cancer resulting from genetic mutations in melanocytes. Several factors have been considered to be involved in melanoma progression, including genetic alteration, processes of damaged DNA repair, and changes in mechanisms of cell growth and proliferation. Epigenetics is the other factor with a crucial role in melanoma development. Epigenetic changes have become novel targets for treating patients suffering from melanoma. These changes can alter the expression of microRNAs and their interaction with target genes, which involves cell growth, differentiation, or even death. Given these circumstances, we conducted the present review to discuss the melanoma risk factors and represent the current knowledge about the factors related to its etiopathogenesis. Moreover, various epigenetic pathways, which are involved in melanoma progression, treatment, and chemo-resistance, as well as employed epigenetic factors as a solution to the problems, will be discussed in detail.
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Affiliation(s)
- Mohsen Karami Fath
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | | | - Asma Soofi
- Department of Physical Chemistry, School of Chemistry, College of Sciences, University of Tehran, Tehran, Iran
| | - Faezeh Almasi
- Pharmaceutical Biotechnology Lab, Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Shahnaz Hosseinzadeh
- Department of Microbiology, Parasitology and Immunology, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Saeed Khalili
- Department of Biology Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran
| | - Kamran Sheikhi
- School of Medicine, Kurdistan University of Medical Sciences, Kurdistan, Iran
| | - Saeid Ferdousmakan
- Department of Pharmacy Practice, Nargund College of Pharmacy, Bangalore, 560085, India
| | - Soroor Owrangi
- Student Research Committe, Fasa University of Medical Sciences, Fasa, Iran
| | | | - Hamidreza Zalpoor
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran
| | - Mohsen Nabi Afjadi
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran.
| | - Zahra Payandeh
- Department Medical Biochemistry and Biophysics, Division Medical Inflammation Research, Karolinska Institute, Stockholm, Sweden.
| | - Navid Pourzardosht
- Biochemistry Department, Guilan University of Medical Sciences, Rasht, Iran.
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Tang YC, Powell RT, Gottlieb A. Molecular pathways enhance drug response prediction using transfer learning from cell lines to tumors and patient-derived xenografts. Sci Rep 2022; 12:16109. [PMID: 36168036 PMCID: PMC9515168 DOI: 10.1038/s41598-022-20646-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 11/24/2022] Open
Abstract
Computational models have been successful in predicting drug sensitivity in cancer cell line data, creating an opportunity to guide precision medicine. However, translating these models to tumors remains challenging. We propose a new transfer learning workflow that transfers drug sensitivity predicting models from large-scale cancer cell lines to both tumors and patient derived xenografts based on molecular pathways derived from genomic features. We further compute feature importance to identify pathways most important to drug response prediction. We obtained good performance on tumors (AUROC = 0.77) and patient derived xenografts from triple negative breast cancers (RMSE = 0.11). Using feature importance, we highlight the association between ER-Golgi trafficking pathway in everolimus sensitivity within breast cancer patients and the role of class II histone deacetylases and interlukine-12 in response to drugs for triple-negative breast cancer. Pathway information support transfer of drug response prediction models from cell lines to tumors and can provide biological interpretation underlying the predictions, serving as a steppingstone towards usage in clinical setting.
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Affiliation(s)
- Yi-Ching Tang
- grid.267308.80000 0000 9206 2401Center for Precision Health, School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX 77030 USA
| | - Reid T. Powell
- grid.264756.40000 0004 4687 2082Center for Translational Cancer Research, Texas A&M University, Houston, TX 77030 USA
| | - Assaf Gottlieb
- Center for Precision Health, School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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12
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Inhibition of Class I Histone Deacetylase Activity Blocks the Induction of TNFAIP3 Both Directly and Indirectly via the Suppression of Endogenous TNF-α. Int J Mol Sci 2022; 23:ijms23179752. [PMID: 36077149 PMCID: PMC9456523 DOI: 10.3390/ijms23179752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Histone deacetylase inhibitors (HDIs) are promising drugs for the treatment of inflammatory diseases. However, their therapeutical exploitation is slowed down by severe adverse manifestations that can hardly be foreseen, mainly due to incomplete knowledge of how HDIs impact the delicate balance of inflammatory mediators. In this work, we characterized the effects of the HDI trichostatin A (TSA) on the expression of TNFAIP3, which is a crucial inhibitor of the classical NF-kB pathway and an LPS-induced negative feedback regulator. The accumulation of TNFAIP3 mRNA after LPS stimulation showed biphasic behavior, with one wave within the first hour of stimulation and a second wave several hours later, which were both reduced by TSA. By using inhibition and knockdown approaches, we identified two temporally and mechanistically distinct modes of action. The first wave of TNAIP3 accumulation was directly blunted by the histone deacetylase (HDAC) blockade. By contrast, the second wave was decreased mainly because of the lack of endogenous TNF-α induction, which, in turn, depended on the intact HDAC activity. In both cases, class I HDACs appeared to play a nonredundant role, with HDAC3 required, but not sufficient, for TNF-α and TNFAIP3 induction. In addition to TNFAIP3, TNF-α is known to induce many response genes that orchestrate the inflammatory cascade. Thus, suppression of TNF-α may represent a general mechanism through which HDIs regulate a selected set of target genes.
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Ripamonti C, Spadotto V, Pozzi P, Stevenazzi A, Vergani B, Marchini M, Sandrone G, Bonetti E, Mazzarella L, Minucci S, Steinkühler C, Fossati G. HDAC Inhibition as Potential Therapeutic Strategy to Restore the Deregulated Immune Response in Severe COVID-19. Front Immunol 2022; 13:841716. [PMID: 35592335 PMCID: PMC9111747 DOI: 10.3389/fimmu.2022.841716] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/01/2022] [Indexed: 01/08/2023] Open
Abstract
The COVID-19 pandemic has had a devastating impact worldwide and has been a great challenge for the scientific community. Vaccines against SARS-CoV-2 are now efficiently lessening COVID-19 mortality, although finding a cure for this infection is still a priority. An unbalanced immune response and the uncontrolled release of proinflammatory cytokines are features of COVID-19 pathophysiology and contribute to disease progression and worsening. Histone deacetylases (HDACs) have gained interest in immunology, as they regulate the innate and adaptative immune response at different levels. Inhibitors of these enzymes have already proven therapeutic potential in cancer and are currently being investigated for the treatment of autoimmune diseases. We thus tested the effects of different HDAC inhibitors, with a focus on a selective HDAC6 inhibitor, on immune and epithelial cells in in vitro models that mimic cells activation after viral infection. Our data indicate that HDAC inhibitors reduce cytokines release by airway epithelial cells, monocytes and macrophages. This anti-inflammatory effect occurs together with the reduction of monocytes activation and T cell exhaustion and with an increase of T cell differentiation towards a T central memory phenotype. Moreover, HDAC inhibitors hinder IFN-I expression and downstream effects in both airway epithelial cells and immune cells, thus potentially counteracting the negative effects promoted in critical COVID-19 patients by the late or persistent IFN-I pathway activation. All these data suggest that an epigenetic therapeutic approach based on HDAC inhibitors represents a promising pharmacological treatment for severe COVID-19 patients.
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Affiliation(s)
- Chiara Ripamonti
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Valeria Spadotto
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Pietro Pozzi
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Andrea Stevenazzi
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Barbara Vergani
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Mattia Marchini
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Giovanni Sandrone
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
| | - Emanuele Bonetti
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Luca Mazzarella
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Saverio Minucci
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | | | - Gianluca Fossati
- New Drug Incubator Department, Italfarmaco Group, Cinisello Balsamo, Italy
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14
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Luan Y, Liu H, Luan Y, Yang Y, Yang J, Ren KD. New Insight in HDACs: Potential Therapeutic Targets for the Treatment of Atherosclerosis. Front Pharmacol 2022; 13:863677. [PMID: 35529430 PMCID: PMC9068932 DOI: 10.3389/fphar.2022.863677] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/21/2022] [Indexed: 12/13/2022] Open
Abstract
Atherosclerosis (AS) features include progressive hardening and reduced elasticity of arteries. AS is the leading cause of morbidity and mortality. An increasing amount of evidence showed that epigenetic modifications on genes serve are a main cause of several diseases, including AS. Histone deacetylases (HDACs) promote the deacetylation at lysine residues, thereby condensing the chromatin structures and further inhibiting the transcription of downstream genes. HDACs widely affect various physiological and pathological processes through transcriptional regulation or deacetylation of other non-histone proteins. In recent years, the role of HDACs in vascular systems has been revealed, and their effects on atherosclerosis have been widely reported. In this review, we discuss the members of HDACs in vascular systems, determine the diverse roles of HDACs in AS, and reveal the effects of HDAC inhibitors on AS progression. We provide new insights into the potential of HDAC inhibitors as drugs for AS treatment.
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Affiliation(s)
- Yi Luan
- Research Center for Clinical System Biology, Translational Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hui Liu
- School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
| | - Ying Luan
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Yang Yang
- Research Center for Clinical System Biology, Translational Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Yang Yang, ; Jing Yang, ; Kai-Di Ren,
| | - Jing Yang
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Yang Yang, ; Jing Yang, ; Kai-Di Ren,
| | - Kai-Di Ren
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Yang Yang, ; Jing Yang, ; Kai-Di Ren,
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15
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Abdelkader HA, Amin I, Rashed LA, Samir M, Ezzat M. Histone deacetylase 1 in patients with alopecia areata and acne vulgaris: An epigenetic alteration. Australas J Dermatol 2022; 63:e138-e141. [DOI: 10.1111/ajd.13784] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/11/2021] [Accepted: 12/22/2021] [Indexed: 12/18/2022]
Affiliation(s)
| | - Iman Amin
- Department of Dermatology, Faculty of Medicine Cairo University Cairo Egypt
| | - Laila Ahmed Rashed
- Department of Biochemistry, Faculty of Medicine Cairo University Cairo Egypt
| | - Maha Samir
- Department of Dermatology, Faculty of Medicine Cairo University Cairo Egypt
| | - Marwa Ezzat
- Department of Dermatology, Faculty of Medicine Cairo University Cairo Egypt
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16
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Adeshakin AO, Adeshakin FO, Yan D, Wan X. Regulating Histone Deacetylase Signaling Pathways of Myeloid-Derived Suppressor Cells Enhanced T Cell-Based Immunotherapy. Front Immunol 2022; 13:781660. [PMID: 35140716 PMCID: PMC8818783 DOI: 10.3389/fimmu.2022.781660] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/03/2022] [Indexed: 12/12/2022] Open
Abstract
Immunotherapy has emerged as a promising approach to combat immunosuppressive tumor microenvironment (TME) for improved cancer treatment. FDA approval for the clinical use of programmed death receptor 1/programmed death-ligand 1 (PD-1/PD-L1) inhibitors revolutionized T cell-based immunotherapy. Although only a few cancer patients respond to this treatment due to several factors including the accumulation of immunosuppressive cells in the TME. Several immunosuppressive cells within the TME such as regulatory T cells, myeloid cells, and cancer-associated fibroblast inhibit the activation and function of T cells to promote tumor progression. The roles of epigenetic modifiers such as histone deacetylase (HDAC) in cancer have long been investigated but little is known about their impact on immune cells. Recent studies showed inhibiting HDAC expression on myeloid-derived suppressor cells (MDSCs) promoted their differentiation to less suppressive cells and reduced their immunosuppressive effect in the TME. HDAC inhibitors upregulated PD-1 or PD-L1 expression level on tumor or immune cells sensitizing tumor-bearing mice to anti-PD-1/PD-L1 antibodies. Herein we discuss how inhibiting HDAC expression on MDSCs could circumvent drawbacks to immune checkpoint inhibitors and improve cancer immunotherapy. Furthermore, we highlighted current challenges and future perspectives of HDAC inhibitors in regulating MDSCs function for effective cancer immunotherapy.
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Affiliation(s)
- Adeleye O. Adeshakin
- Guangdong Immune Cell Therapy Engineering and Technology Research Center, Center for Protein and Cell-Based Drugs, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing , China
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Funmilayo O. Adeshakin
- Guangdong Immune Cell Therapy Engineering and Technology Research Center, Center for Protein and Cell-Based Drugs, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing , China
| | - Dehong Yan
- Guangdong Immune Cell Therapy Engineering and Technology Research Center, Center for Protein and Cell-Based Drugs, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing , China
- *Correspondence: Dehong Yan, ; Xiaochun Wan,
| | - Xiaochun Wan
- Guangdong Immune Cell Therapy Engineering and Technology Research Center, Center for Protein and Cell-Based Drugs, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing , China
- *Correspondence: Dehong Yan, ; Xiaochun Wan,
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17
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Lu J, He X, Zhang L, Zhang R, Li W. Acetylation in Tumor Immune Evasion Regulation. Front Pharmacol 2021; 12:771588. [PMID: 34880761 PMCID: PMC8645962 DOI: 10.3389/fphar.2021.771588] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/05/2021] [Indexed: 12/24/2022] Open
Abstract
Acetylation is considered as one of the most common types of epigenetic modifications, and aberrant histone acetylation modifications are associated with the pathological process of cancer through the regulation of oncogenes and tumor suppressors. Recent studies have shown that immune system function and tumor immunity can also be affected by acetylation modifications. A comprehensive understanding of the role of acetylation function in cancer is essential, which may help to develop new therapies to improve the prognosis of cancer patients. In this review, we mainly discussed the functions of acetylase and deacetylase in tumor, immune system and tumor immunity, and listed the information of drugs targeting these enzymes in tumor immunotherapy.
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Affiliation(s)
- Jun Lu
- Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Xiang He
- Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China.,Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China
| | - Lijuan Zhang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Ran Zhang
- Hunan Normal University School of Medicine, Changsha, China
| | - Wenzheng Li
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
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18
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Wolyncewicz B, Major TJ, Delahunt B, Thunders M. The epigenome: key to understanding and predicting gout flares. Pathology 2021; 53:824-829. [PMID: 34657735 DOI: 10.1016/j.pathol.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 11/26/2022]
Abstract
Gout is a form of arthritis, resulting from an inflammatory reaction to the deposition of monosodium urate (MSU) crystals in the synovial fluid of the joint space. It is characterised by periods of acute inflammation in the affected joint, or joints (known as gout flares), separated by asymptomatic periods. There seems to be substantial overlap between environmental triggers of gout flares and common environmental modifiers (diet, pharmaceuticals, and stress) of epigenetic markers (DNA methylation, histone modifications, and ncRNA). Very few studies have looked at whether environment is influencing gout through epigenetic mechanisms. The pathogenesis of gouty inflammation is well understood but understanding the variation of response to hyperuricaemia in terms of gout flare initiation is less well known. In this review, we will examine the potential of epigenomics in understanding how gout flares may occur, both in terms of development of hyperuricaemia and the inflammatory response. Looking at the epigenome and its intersection with lifestyle could help identify new targets and strategies for effective management of gout flares.
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Affiliation(s)
- Ben Wolyncewicz
- Otago Medical School, Division of Health Sciences, University of Otago, Dunedin, New Zealand
| | - Tanya J Major
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Brett Delahunt
- Department of Pathology and Molecular Medicine, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand
| | - Michelle Thunders
- Department of Pathology and Molecular Medicine, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand.
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19
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Franzese O, Torino F, Giannetti E, Cioccoloni G, Aquino A, Faraoni I, Fuggetta MP, De Vecchis L, Giuliani A, Kaina B, Bonmassar E. Abscopal Effect and Drug-Induced Xenogenization: A Strategic Alliance in Cancer Treatment? Int J Mol Sci 2021; 22:ijms221910672. [PMID: 34639014 PMCID: PMC8509363 DOI: 10.3390/ijms221910672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
The current state of cancer treatment is still far from being satisfactory considering the strong impairment of patients' quality of life and the high lethality of malignant diseases. Therefore, it is critical for innovative approaches to be tested in the near future. In view of the crucial role that is played by tumor immunity, the present review provides essential information on the immune-mediated effects potentially generated by the interplay between ionizing radiation and cytotoxic antitumor agents when interacting with target malignant cells. Therefore, the radiation-dependent abscopal effect (i.e., a biological effect of ionizing radiation that occurs outside the irradiated field), the influence of cancer chemotherapy on the antigenic pattern of target neoplastic cells, and the immunogenic cell death (ICD) caused by anticancer agents are the main topics of this presentation. It is widely accepted that tumor immunity plays a fundamental role in generating an abscopal effect and that anticancer drugs can profoundly influence not only the host immune responses, but also the immunogenic pattern of malignant cells. Remarkably, several anticancer drugs impact both the abscopal effect and ICD. In addition, certain classes of anticancer agents are able to amplify already expressed tumor-associated antigens (TAA). More importantly, other drugs, especially triazenes, induce the appearance of new tumor neoantigens (TNA), a phenomenon that we termed drug-induced xenogenization (DIX). The adoption of the abscopal effect is proposed as a potential therapeutic modality when properly applied concomitantly with drug-induced increase in tumor cell immunogenicity and ICD. Although little to no preclinical or clinical studies are presently available on this subject, we discuss this issue in terms of potential mechanisms and therapeutic benefits. Upcoming investigations are aimed at evaluating how chemical anticancer drugs, radiation, and immunotherapies are interacting and cooperate in evoking the abscopal effect, tumor xenogenization and ICD, paving the way for new and possibly successful approaches in cancer therapy.
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Affiliation(s)
- Ornella Franzese
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
| | - Francesco Torino
- Department of Systems Medicine, Medical Oncology, University of Rome Tor Vergata, 00133 Rome, Italy; (F.T.); (E.G.)
| | - Elisa Giannetti
- Department of Systems Medicine, Medical Oncology, University of Rome Tor Vergata, 00133 Rome, Italy; (F.T.); (E.G.)
| | - Giorgia Cioccoloni
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
- School of Food Science and Nutrition, University of Leeds, Leeds LS29JT, UK
| | - Angelo Aquino
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
| | - Isabella Faraoni
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
| | - Maria Pia Fuggetta
- Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Via Fosso del Cavaliere, 00133 Rome, Italy; (M.P.F.); (A.G.)
| | - Liana De Vecchis
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
| | - Anna Giuliani
- Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Via Fosso del Cavaliere, 00133 Rome, Italy; (M.P.F.); (A.G.)
| | - Bernd Kaina
- Institute of Toxicology, University Medical Center, D-55131 Mainz, Germany
- Correspondence: (B.K.); (E.B.)
| | - Enzo Bonmassar
- School of Medicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (O.F.); (G.C.); (A.A.); (I.F.); (L.D.V.)
- Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Via Fosso del Cavaliere, 00133 Rome, Italy; (M.P.F.); (A.G.)
- Correspondence: (B.K.); (E.B.)
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20
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Singh D, Gupta S, Verma I, Morsy MA, Nair AB, Ahmed ASF. Hidden pharmacological activities of valproic acid: A new insight. Biomed Pharmacother 2021; 142:112021. [PMID: 34463268 DOI: 10.1016/j.biopha.2021.112021] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 07/28/2021] [Accepted: 08/07/2021] [Indexed: 12/24/2022] Open
Abstract
Valproic acid (VPA) is an approved drug for managing epileptic seizures, bipolar disorders, and migraine. VPA has been shown to elevate the level of gamma-aminobutyric acid (GABA) in the brain through competitive inhibition of GABA transaminase, thus promoting the availability of synaptic GABA and facilitating GABA-mediated responses. VPA, which is a small chain of fatty acids, prevents histone deacetylases (HDACs). HDACs play a crucial role in chromatin remodeling and gene expression through posttranslational changes of chromatin-associated histones. Recent studies reported a possible effect of VPA against particular types of cancers. This effect was partially attributed to its role in regulating epigenetic modifications through the inhibition of HDACs, which affect the expression of genes associated with cell cycle control, cellular differentiation, and apoptosis. In this review, we summarize the current information on the actions of VPA in diseases such as diabetes mellitus, kidney disorders, neurodegenerative diseases, muscular dystrophy, and cardiovascular disorders.
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Affiliation(s)
- Dhirendra Singh
- Department of Pharmacology, M.M. College of Pharmacy, M.M. (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Sumeet Gupta
- Department of Pharmacology, M.M. College of Pharmacy, M.M. (Deemed to be University), Mullana, Ambala, Haryana, India.
| | - Inderjeet Verma
- Department of Pharmacology, M.M. College of Pharmacy, M.M. (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Mohamed A Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia; Department of Pharmacology, Faculty of Medicine, Minia University, El-Minia, Egypt
| | - Anroop B Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Al-Shaimaa F Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia, Egypt
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21
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Wu Q, Zhang W, Liu Y, Huang Y, Wu H, Ma C. Histone deacetylase 1 facilitates aerobic glycolysis and growth of endometrial cancer. Oncol Lett 2021; 22:721. [PMID: 34429761 PMCID: PMC8371952 DOI: 10.3892/ol.2021.12982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/24/2021] [Indexed: 01/20/2023] Open
Abstract
The deregulation of histone deacetylase 1 (HDAC1) is reportedly involved in the progression of several cancer types. However, its function in endometrial cancer remains unknown. The aim of the present study was to clarify the role of HDAC1 in aerobic glycolysis and the progression of endometrial cancer. Lentiviral vector transfection was used to up- and downregulate HDAC1 expression in HEC-1-A endometrial cancer cells. The effects of HDAC1 on cellular proliferation, apoptosis, migration, invasiveness and tumorigenesis were determined by CCK-8, flow cytometry, wound-healing, transwell chamber and in vivo tumor formation experiments, respectively. HDAC1 level was significantly increased in endometrial cancer tissues and cells, and its high expression was associated with advanced clinicopathological progression. HEC-1-A cell proliferation, invasiveness, migration and tumorigenesis were enhanced, and apoptosis was inhibited when HDAC1 was overexpressed. Moreover, upregulation of HDAC1 significantly promoted the epithelial-mesenchymal transition of HEC-1-A cells, and increased glucose consumption, lactate secretion and ATP levels. Collectively, the present study revealed that HDAC1 promoted the aerobic glycolysis and progression of endometrial cancer, which may provide a potential target for endometrial cancer treatment.
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Affiliation(s)
- Qiongwei Wu
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
| | - Wenying Zhang
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
| | - Yu Liu
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
| | - Yuhua Huang
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
| | - Huiheng Wu
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
| | - Chengbin Ma
- Gynecology Department, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200051, P.R. China
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22
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Wang H, Yang G, Sun D, Wang B, Chen H, Chen M, Zhu B. Histone deacetylase 2 polymorphisms associated with noise-induced hearing loss in Chinese workers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:38254-38262. [PMID: 33733414 DOI: 10.1007/s11356-021-13486-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
Noise-induced hearing loss (NIHL) is one of these hazards which has been the second most common sensorineural hearing loss. Single-nucleotide polymorphisms (SNPs) mainly refer to the polymorphism of DNA sequence caused by the variation at the genomic nucleotide level. The influence of histone deacetylase 2 (HDAC2) variants on the risk of NIHL has not been studied. This research explored the association between HDAC2 and the development of NIHL. A total of 1146 industrial workers from one textile factory in east China were recruited to perform a case-control study. Basic clinical data such sex, age, smoking, and drinking was obtained by questionnaires; pure-toneaudiometry (PTA) tests were conducted by specialist physicians. Then, we performed genotyping of five selected SNPs (rs10499080, rs2475631, rs2499618, rs6568819, and rs3757016) in the HDAC2 gene in 600 NIHL patients and 546 controls. Finally, the main influences of the SNPs and their interactions with NIHL were assessed. Under the recessive model, there were statistically significant differences in the genotype frequencies of rs10499080 between two groups, and the results showed that individuals with rs10499080 CC+CT had a lower risk of NIHL (OR = 0.597, 95%CI = 0.357-0.998). Meanwhile, the significant difference in the genotype distributions between cases and controls was found in rs10499080 in the group with noise exposure of ≤ 16 years. But the following haplotype analysis showed that no association between all haplotypes in the HDAC2 gene and NIHL was been found. The genetic polymorphisms rs10499080 and rs6568819 within HDAC2 gene have an association with risk of NIHL. Workers exposed to noise with HDAC2 have a lower risk of NIHL.
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Affiliation(s)
- Huimin Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
| | - Guangzhi Yang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
| | - Dawei Sun
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
| | - Boshen Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
| | - Hao Chen
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 210000, Jiangsu, China
| | - Mengyao Chen
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China
| | - Baoli Zhu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, China.
- Institute of Occupational Disease Prevention, Jiangsu Province Center for Disease Prevention and Control, Nanjing, Jiangsu Province, China.
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23
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Sehanobish E, Asad M, Barbi M, Porcelli SA, Jerschow E. Aspirin Actions in Treatment of NSAID-Exacerbated Respiratory Disease. Front Immunol 2021; 12:695815. [PMID: 34305932 PMCID: PMC8297972 DOI: 10.3389/fimmu.2021.695815] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/07/2021] [Indexed: 12/21/2022] Open
Abstract
Non-steroidal Anti-inflammatory drugs (NSAID)-exacerbated respiratory disease (N-ERD) is characterized by nasal polyposis, chronic rhinosinusitis, adult-onset asthma and hypersensitive reactions to cyclooxygenase-1 (COX-1) inhibitors. Among the available treatments for this disease, a combination of endoscopic sinus surgery followed by aspirin desensitization and aspirin maintenance therapy has been an effective approach. Studies have shown that long-term aspirin maintenance therapy can reduce the rate of nasal polyp recurrence in patients with N-ERD. However, the exact mechanism by which aspirin can both trigger and suppress airway disease in N-ERD remains poorly understood. In this review, we summarize current knowledge of aspirin effects in N-ERD, cardiovascular disease, and cancer, and consider potential mechanistic pathways accounting for the effects of aspirin in N-ERD.
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Affiliation(s)
- Esha Sehanobish
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Mohammad Asad
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Mali Barbi
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Steven A. Porcelli
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Elina Jerschow
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
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24
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Adhikari N, Jha T, Ghosh B. Dissecting Histone Deacetylase 3 in Multiple Disease Conditions: Selective Inhibition as a Promising Therapeutic Strategy. J Med Chem 2021; 64:8827-8869. [PMID: 34161101 DOI: 10.1021/acs.jmedchem.0c01676] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The acetylation of histone and non-histone proteins has been implicated in several disease states. Modulation of such epigenetic modifications has therefore made histone deacetylases (HDACs) important drug targets. HDAC3, among various class I HDACs, has been signified as a potentially validated target in multiple diseases, namely, cancer, neurodegenerative diseases, diabetes, obesity, cardiovascular disorders, autoimmune diseases, inflammatory diseases, parasitic infections, and HIV. However, only a handful of HDAC3-selective inhibitors have been reported in spite of continuous efforts in design and development of HDAC3-selective inhibitors. In this Perspective, the roles of HDAC3 in various diseases as well as numerous potent and HDAC3-selective inhibitors have been discussed in detail. It will surely open up a new vista in the discovery of newer, more effective, and more selective HDAC3 inhibitors.
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Affiliation(s)
- Nilanjan Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, P.O. Box 17020, Kolkata, 700032 West Bengal, India
| | - Tarun Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, P.O. Box 17020, Kolkata, 700032 West Bengal, India
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Shamirpet, Hyderabad 500078, India
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25
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Chen J, Cheng F, Sahakian E, Powers J, Wang Z, Tao J, Seto E, Pinilla-Ibarz J, Sotomayor EM. HDAC11 regulates expression of C/EBPβ and immunosuppressive molecules in myeloid-derived suppressor cells. J Leukoc Biol 2021; 109:891-900. [PMID: 33866588 DOI: 10.1002/jlb.1a1119-606rrr] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 01/04/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) constitute a heterogeneous population of immature myeloid cells derived from bone marrow and negatively regulate both innate and adaptive immunity in the tumor microenvironment. Previously we have demonstrated that MDSCs lacking histone deacetylase 11 (HDAC11) displayed an increased suppressive activity against CD8+ T-cells. However, the mechanisms of HDAC11 that contribute to the suppressive function of MDSCs remain unclear. Here, we show that arginase activity and NO production is significantly higher in HDAC11 knockout MDSCs when compared with wild-type (WT) controls. In the absence of HDAC11, elevated arginase level and enzymatic activity were observed preferentially in the tumor-infiltrated granulocytic MDSCs, whereas iNOS expression and NO production were increased in the tumor-infiltrated monocytic MDSCs. Of note and for the first time, we demonstrated an association between the elevated expression of immunosuppressive molecules with up-regulation of the transcription factor C/EBPβ in MDSCs lacking HDAC11. Interestingly, the highest expression of C/EBPβ was observed among CD11b+ Gr-1+ MDSCs isolated from tumor-bearing mice. The additional demonstration that HDAC11 is recruited to the promoter region of C/EBPβ in WT MDSCs suggests a novel molecular mechanism by which HDAC11 influence the expression of immunosuppressive molecules in MDSCs through regulation of C/EBPβ gene expression.
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Affiliation(s)
- Jie Chen
- George Washington Cancer Center, Washington, District of Columbia, USA
| | - Fengdong Cheng
- George Washington Cancer Center, Washington, District of Columbia, USA
| | - Eva Sahakian
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - John Powers
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Zi Wang
- George Washington Cancer Center, Washington, District of Columbia, USA
| | - Jianguo Tao
- Department of Laboratory Medicine and Hematopathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Edward Seto
- George Washington Cancer Center, Washington, District of Columbia, USA
| | - Javier Pinilla-Ibarz
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
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26
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Toor SM, Sasidharan Nair V, Saleh R, Taha RZ, Murshed K, Al-Dhaheri M, Khawar M, Ahmed AA, Kurer MA, Abu Nada M, Elkord E. Transcriptome of Tumor-Infiltrating T Cells in Colorectal Cancer Patients Uncovered a Unique Gene Signature in CD4 + T Cells Associated with Poor Disease-Specific Survival. Vaccines (Basel) 2021; 9:vaccines9040334. [PMID: 33916009 PMCID: PMC8065799 DOI: 10.3390/vaccines9040334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/15/2021] [Accepted: 03/26/2021] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is influenced by infiltration of immune cell populations in the tumor microenvironment. While elevated levels of cytotoxic T cells are associated with improved prognosis, limited studies have reported associations between CD4+ T cells and disease outcomes. We recently performed transcriptomic profiling and comparative analyses of sorted CD4+ and CD8+ tumor-infiltrating lymphocytes (TILs) from bulk tumors of CRC patients with varying disease stages. In this study, we compared the transcriptomes of CD4+ with CD8+ TILs. Functional annotation pathway analyses revealed the downregulation of inflammatory response-related genes, while T cell activation and angiogenesis-related genes were upregulated in CD4+ TILs. The top 200 deregulated genes in CD4+ TILs were aligned with the cancer genome atlas (TCGA) CRC dataset to identify a unique gene signature associated with poor prognosis. Moreover, 69 upregulated and 20 downregulated genes showed similar trends of up/downregulation in the TCGA dataset and were used to calculate "poor prognosis score" (ppScore), which was significantly associated with disease-specific survival. High ppScore patients showed lower expression of Treg-, Th1-, and Th17-related genes, and higher expression of Th2-related genes. Our data highlight the significance of T cells within the TME and identify a unique candidate prognostic gene signature for CD4+ TILs in CRC patients.
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Affiliation(s)
- Salman M. Toor
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar; (S.M.T.); (V.S.N.); (R.S.); (R.Z.T.)
| | - Varun Sasidharan Nair
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar; (S.M.T.); (V.S.N.); (R.S.); (R.Z.T.)
| | - Reem Saleh
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar; (S.M.T.); (V.S.N.); (R.S.); (R.Z.T.)
| | - Rowaida Z. Taha
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar; (S.M.T.); (V.S.N.); (R.S.); (R.Z.T.)
| | - Khaled Murshed
- Department of Pathology, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar;
| | - Mahmood Al-Dhaheri
- Department of Surgery, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar; (M.A.-D.); (M.K.); (A.A.A.); (M.A.K.); (M.A.N.)
| | - Mahwish Khawar
- Department of Surgery, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar; (M.A.-D.); (M.K.); (A.A.A.); (M.A.K.); (M.A.N.)
| | - Ayman A. Ahmed
- Department of Surgery, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar; (M.A.-D.); (M.K.); (A.A.A.); (M.A.K.); (M.A.N.)
| | - Mohamed A. Kurer
- Department of Surgery, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar; (M.A.-D.); (M.K.); (A.A.A.); (M.A.K.); (M.A.N.)
| | - Mohamed Abu Nada
- Department of Surgery, Hamad Medical Corporation, P.O. Box 3050 Doha, Qatar; (M.A.-D.); (M.K.); (A.A.A.); (M.A.K.); (M.A.N.)
| | - Eyad Elkord
- Biomedical Research Center, School of Science, Engineering and Environment, University of Salford, Manchester M5 4WT, UK
- Correspondence: ; Tel.: +44-161-295-5736
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27
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Saleh HA, Yousef MH, Abdelnaser A. The Anti-Inflammatory Properties of Phytochemicals and Their Effects on Epigenetic Mechanisms Involved in TLR4/NF-κB-Mediated Inflammation. Front Immunol 2021; 12:606069. [PMID: 33868227 PMCID: PMC8044831 DOI: 10.3389/fimmu.2021.606069] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/08/2021] [Indexed: 12/11/2022] Open
Abstract
Innate immune response induces positive inflammatory transducers and regulators in order to attack pathogens, while simultaneously negative signaling regulators are transcribed to maintain innate immune homeostasis and to avoid persistent inflammatory immune responses. The gene expression of many of these regulators is controlled by different epigenetic modifications. The remarkable impact of epigenetic changes in inducing or suppressing inflammatory signaling is being increasingly recognized. Several studies have highlighted the interplay of histone modification, DNA methylation, and post-transcriptional miRNA-mediated modifications in inflammatory diseases, and inflammation-mediated tumorigenesis. Targeting these epigenetic alterations affords the opportunity of attenuating different inflammatory dysregulations. In this regard, many studies have identified the significant anti-inflammatory properties of distinct naturally-derived phytochemicals, and revealed their regulatory capacity. In the current review, we demonstrate the signaling cascade during the immune response and the epigenetic modifications that take place during inflammation. Moreover, we also provide an updated overview of phytochemicals that target these mechanisms in macrophages and other experimental models, and go on to illustrate the effects of these phytochemicals in regulating epigenetic mechanisms and attenuating aberrant inflammation.
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Affiliation(s)
- Haidy A. Saleh
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, Cairo, Egypt
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Mohamed H. Yousef
- Biotechnology Graduate Program, School of Sciences and Engineering, The American University in Cairo, Cairo, Egypt
| | - Anwar Abdelnaser
- Institute of Global Public Health, School of Sciences and Engineering, The American University in Cairo, Cairo, Egypt
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28
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Adamo A, Frusteri C, Pallotta MT, Pirali T, Sartoris S, Ugel S. Moonlighting Proteins Are Important Players in Cancer Immunology. Front Immunol 2021; 11:613069. [PMID: 33584695 PMCID: PMC7873856 DOI: 10.3389/fimmu.2020.613069] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022] Open
Abstract
Plasticity and adaptation to environmental stress are the main features that tumor and immune system share. Except for intrinsic and high-defined properties, cancer and immune cells need to overcome the opponent's defenses by activating more effective signaling networks, based on common elements such as transcriptional factors, protein-based complexes and receptors. Interestingly, growing evidence point to an increasing number of proteins capable of performing diverse and unpredictable functions. These multifunctional proteins are defined as moonlighting proteins. During cancer progression, several moonlighting proteins are involved in promoting an immunosuppressive microenvironment by reprogramming immune cells to support tumor growth and metastatic spread. Conversely, other moonlighting proteins support tumor antigen presentation and lymphocytes activation, leading to several anti-cancer immunological responses. In this light, moonlighting proteins could be used as promising new potential targets for improving current cancer therapies. In this review, we describe in details 12 unprecedented moonlighting proteins that during cancer progression play a decisive role in guiding cancer-associated immunomodulation by shaping innate or adaptive immune response.
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Affiliation(s)
- Annalisa Adamo
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | - Cristina Frusteri
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | | | - Tracey Pirali
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Silvia Sartoris
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | - Stefano Ugel
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
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29
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Mackwitz MKW, Hesping E, Eribez K, Schöler A, Antonova-Koch Y, Held J, Winzeler EA, Andrews KT, Hansen FK. Investigation of the in vitro and in vivo efficacy of peptoid-based HDAC inhibitors with dual-stage antiplasmodial activity. Eur J Med Chem 2020; 211:113065. [PMID: 33360801 DOI: 10.1016/j.ejmech.2020.113065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/20/2020] [Accepted: 11/27/2020] [Indexed: 12/20/2022]
Abstract
Histone deacetylases (HDACs) have been identified as emerging antiplasmodial drug targets. In this work, we report on the synthesis, structure-activity relationships, metabolic stability and in vivo efficacy of new peptoid-based HDAC inhibitors with dual-stage antiplasmodial activity. A mini library of HDAC inhibitors was synthesized using a one-pot, multi-component protocol or submonomer pathways. The screening of the target compounds for their activity against asexual blood stage parasites, human cell cytotoxicity, liver stage parasites, and selected human HDAC isoforms provided important structure-activity relationship data. The most promising HDAC inhibitor from this series, compound 3n, demonstrated potent activity against drug-sensitive and drug-resistant asexual stage P. falciparum parasites and was selective for the parasite versus human cells (Pf3D7 IC50 0.016 μM; SIHepG2/Pf3D7 573; PfDd2 IC50 0.002 μM; SIHepG2/PfDd2 4580) combined with activity against P. berghei exoerythrocytic liver stages (PbEEF IC50 0.48 μM). While compound 3n displayed high stability in human (Clint 5 μL/min/mg) and mouse (Clint 6 μL/min/mg) liver microsomes, only modest oral in vivo efficacy was observed in P. berghei infected mice. Together these data provide a foundation for future work to improve the properties of these dual-stage inhibitors as drug leads for malaria.
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Affiliation(s)
- Marcel K W Mackwitz
- Institute for Drug Discovery, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany
| | - Eva Hesping
- Griffith Institute for Drug Discovery, 46 Don Young Road, Nathan Campus, Griffith University, QLD, 4111, Australia
| | - Korina Eribez
- Department of Pediatrics, School of Medicine, University of California, San Diego, 9500 Gilman Drive 0741, La Jolla, CA, 92093, United States
| | - Andrea Schöler
- Institute for Drug Discovery, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany
| | - Yevgeniya Antonova-Koch
- Department of Pediatrics, School of Medicine, University of California, San Diego, 9500 Gilman Drive 0741, La Jolla, CA, 92093, United States
| | - Jana Held
- Institut für Tropenmedizin, Eberhard Karls Universität Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany
| | - Elizabeth A Winzeler
- Department of Pediatrics, School of Medicine, University of California, San Diego, 9500 Gilman Drive 0741, La Jolla, CA, 92093, United States
| | - Katherine T Andrews
- Griffith Institute for Drug Discovery, 46 Don Young Road, Nathan Campus, Griffith University, QLD, 4111, Australia.
| | - Finn K Hansen
- Institute for Drug Discovery, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany; Pharmaceutical and Cell Biological Chemistry, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany.
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30
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Ghiboub M, Zhao J, Li Yim AYF, Schilderink R, Verseijden C, van Hamersveld PHP, Duarte JM, Hakvoort TBM, Admiraal I, Harker NR, Tough DF, Henneman P, de Winther MPJ, de Jonge WJ. HDAC3 Mediates the Inflammatory Response and LPS Tolerance in Human Monocytes and Macrophages. Front Immunol 2020; 11:550769. [PMID: 33123128 PMCID: PMC7573361 DOI: 10.3389/fimmu.2020.550769] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 09/17/2020] [Indexed: 12/20/2022] Open
Abstract
Histone deacetylases (HDACs) are a group of enzymes that control histone deacetylation and bear potential to direct expression of large gene sets. We determined the effect of HDAC inhibitors (HDACi) on human monocytes and macrophages, with respect to their polarization, activation, and their capabilities of inducing endotoxin tolerance. To address the role for HDACs in macrophage polarization, we treated monocytes with HDAC3i, HDAC6i or pan-HDACi prior to polarization into M1 or M2 macrophages using IFNγ or IL-4 respectively. To study the HDAC inhibition effect on cytokine expression, macrophages were treated with HDACi prior to LPS-stimulation. TNFα, IL-6, and p40 were measured with ELISA, whereas modifications of Histone 3 and STAT1 were assessed using western blot. To address the role for HDAC3 in repeated LPS challenge induction, HDAC3i or HDAC3 siRNA was added to monocytes prior to incubation with IFNγ, which were then repeatedly challenged with LPS and analyzed by means of protein analyses and transcriptional profiling. Pan-HDACi and HDAC3i reduced cytokine secretion in monocytes and M1 macrophages, whereas HDAC6i yielded no such effect. Notably, neither pan-HDACi nor HDAC3i reduced cytokine secretion in M2 macrophages. In contrast to previous reports in mouse macrophages, HDAC3i did not affect macrophage polarization in human cells. Likewise, HDAC3 was not required for IFNγ signaling or IFNβ secretion. Cytokine and gene expression analyses confirmed that IFNγ-treated macrophages consistently develop a cytokine response after LPS repeated challenge, but pretreatment with HDAC3i or HDAC3 siRNA reinstates a state of tolerance reflected by general suppression of tolerizable genes, possibly through decreasing TLRs expression, and particularly TLR4/CD14. The development of endotoxin tolerance in macrophages is important to reduce exacerbated immune response and limit tissue damage. We conclude that HDAC3 is an attractive protein target to mediate macrophage reactivity and tolerance induction in inflammatory macrophages.
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Affiliation(s)
- Mohammed Ghiboub
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Epigenetics Discovery Performance Unit, Immunoinflammation Therapy Area Unit, Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom
| | - Jing Zhao
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Andrew Y F Li Yim
- Epigenetics Discovery Performance Unit, Immunoinflammation Therapy Area Unit, Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom.,Genome Diagnostics Laboratory, Amsterdam Reproduction & Development, Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Ronald Schilderink
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Caroline Verseijden
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Patricia H P van Hamersveld
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Jose M Duarte
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Theodorus B M Hakvoort
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Iris Admiraal
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Nicola R Harker
- Epigenetics Discovery Performance Unit, Immunoinflammation Therapy Area Unit, Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom
| | - David F Tough
- Adaptive Immunity Research Unit, Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom
| | - Peter Henneman
- Epigenetics Discovery Performance Unit, Immunoinflammation Therapy Area Unit, Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom
| | - Menno P J de Winther
- Department of Medical Biochemistry, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Department of Medicine, Institute for Cardiovascular Prevention (IPEK), Munich, Germany
| | - Wouter J de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Department of Surgery, University of Bonn, Bonn, Germany
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31
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Induced protein degradation of histone deacetylases 3 (HDAC3) by proteolysis targeting chimera (PROTAC). Eur J Med Chem 2020; 208:112800. [PMID: 32971411 DOI: 10.1016/j.ejmech.2020.112800] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/04/2020] [Accepted: 08/27/2020] [Indexed: 12/19/2022]
Abstract
Histone deacetylases (HDACs) play important roles in inflammatory diseases like asthma and chronic obstructive pulmonary disease (COPD). Unravelling of and interfering with the functions of specific isoenzymes contributing to inflammation provides opportunities for drug development. Here we synthesize proteolysis targeting chimeras (PROTACs) for degradation of class I HDACs in which o-aminoanilide-based class I HDAC inhibitors are tethered to the cereblon ligand pomalidomide. One of these PROTACs, denoted HD-TAC7, showed promising degradation effects for HDAC3 with a DC50 value of 0.32 μM. In contrast to biochemical evidence using siRNA, HD-TAC7 showed a minimal effect on gene expression in LPS/IFNγ-stimulated RAW 264.7 macrophages. The lack of effect can be attributed to downregulation of the NF-κB subunit p65, which is a known side effect of pomalidomide treatment. Altogether, we describe a novel PROTAC that enables selective downregulation of HDAC3 levels, however we note that concomitant downregulation of the NF-κB subunit p65 can confound the biological outcome.
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32
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Li Z, Guo J, Bi L. Role of the NLRP3 inflammasome in autoimmune diseases. Biomed Pharmacother 2020; 130:110542. [PMID: 32738636 DOI: 10.1016/j.biopha.2020.110542] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022] Open
Abstract
NOD-like receptor family pyrin domain containing 3 (NLRP3) is an intracellular receptor that senses foreign pathogens and endogenous danger signals. It assembles with apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1 to form a multimeric protein called the NLRP3 inflammasome. Among its various functions, the NLRP3 inflammasome can induce the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 while also promoting gasdermin D (GSDMD)-mediated pyroptosis. Previous studies have established a vital role for the NLRP3 inflammasome in innate and adaptive immune system as well as its contribution to several autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Sjögren's syndrome (SS), systemic sclerosis (SSc), and ankylosing spondylitis (AS). In this review, we briefly introduce the biological features of the NLRP3 inflammasome and present the mechanisms underlying its activation and regulation. We also summarize recent studies that have reported on the roles of NLRP3 inflammasome in the immune system and several autoimmune diseases, with a focus on therapeutic and clinical applications.
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Affiliation(s)
- Zhe Li
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Jialong Guo
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Liqi Bi
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
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34
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Gao Q, Wang Y, Ma N, Dai H, Roy AC, Chang G, Shi X, Shen X. Sodium valproate attenuates the iE-DAP induced inflammatory response by inhibiting the NOD1-NF-κB pathway and histone modifications in bovine mammary epithelial cells. Int Immunopharmacol 2020; 83:106392. [PMID: 32182568 DOI: 10.1016/j.intimp.2020.106392] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/14/2020] [Accepted: 03/08/2020] [Indexed: 12/30/2022]
Abstract
The anti-inflammatory effects of sodium valproate (VPA) in vivo and in vitro have been demonstrated in recent studies. The aim of this study was to evaluate whether VPA can suppress inflammation in bovine mammary epithelial cells (BMECs) stimulated by γ-D-glutamyl-meso-diaminopimelic acid (iE-DAP). First, the concentration and treatment points of iE-DAP and VPA were optimized. Then, BMECs were cultured in complete media and separated into four groups: untreated control cells (CON group), cells stimulated by 10 μg/mL iE-DAP for 6 h (DAP group), cells stimulated by 0.5 mmol/L VPA for 6 h (VPA group), and cells pretreated with VPA (0.5 mmol/L) for 6 h followed by 10 μg/mL of iE-DAP for 6 h (VD group). The results showed that the level of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in the culture medium increased in the iE-DAP-treated cells and that pretreatment with VPA reversed this increase. iE-DAP increased both mRNA and protein expression levels of nucleotide-binding oligomerization domain-containing protein 1 (NOD1) and receptor-interacting protein kinas (RIPK2) and activated inhibitor of NF-κB (IκB) and nuclear factor-kappa B p65 (NF-κB p65) through phosphorylation. Upon activation of the NF-κB pathway, the expression of the pro-inflammatory cytokines IL-6, interleukin-8 (IL-8) and interleukin-1β (IL-1β), the acute phase protein serum amyloid A 3 (SAA3) and the lingual antimicrobial peptide (LAP) but not haptoglobi (HP) or bovine neutrophil beta defensing 5 (BNBD5) were increased in the DAP group. The VPA pretreatment induced the acetylation of signal transducers and activators of transcription(STAT1) and histone 3 (H3) by inhibiting histone deacetylase (HDAC) and then suppressed the NF-κB pathway. Moreover, VPA induced autophagy and reduced apoptosis in BMECs in the VD group. These results suggested that VPA treatment can attenuate the inflammatory response induced by iE-DAP.
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Affiliation(s)
- Qianyun Gao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yan Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Nana Ma
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Hongyu Dai
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Animesh Chandra Roy
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Guangjun Chang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaoli Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiangzhen Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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Švajger U, Rožman PJ. Recent discoveries in dendritic cell tolerance-inducing pharmacological molecules. Int Immunopharmacol 2020; 81:106275. [PMID: 32044665 DOI: 10.1016/j.intimp.2020.106275] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/31/2020] [Accepted: 01/31/2020] [Indexed: 01/04/2023]
Abstract
Dendritic cells (DCs) represent one of the most important biological tools for cellular immunotherapy purposes. There are an increasing number of phase I and II studies, where regulatory or tolerogenic DCs (TolDCs) are utilized as negative vaccines, with the aim of inducing tolerogenic outcomes in patients with various autoimmune or chronic-inflammatory diseases, as well as in transplant settings. The induction of tolerogenic properties in DCs can be achieved by altering their activation state toward expression of immunosuppressive elements and/or by achieving resistance to maturation, which leads to insufficient co-stimulatory signal delivery and inability to efficiently present antigens. In the past, one of the most efficient ways to induce DC tolerance has been the application of selected pharmacological agents which actively induce a tolerogenic transcription program or inhibit major pro-inflammatory transcription factors such as Nf-κB. Important examples include immunosuppressants such as different corticosteroids, vitamin D3, rapamycin and others. The quality of TolDCs induced by different approaches is becoming a vital issue and recent evidence suggests substantial heterogeneity between variously-generated TolDCs as evidenced by their transcriptomic profile and function. The possibility of various "flavors" of TolDCs encourages future research in discovery of Tol-DC inducing agents to enrich various ways of DC manipulation. This would enable a broader range of tools to manipulate DC toward specific characteristics desirable in different disease settings. In recent years, several novel small molecules have been identified with the capacity to promote DC tolerogenic characteristics. In this review, we will present and discuss these novel findings and also highlight novel understandings of tolerogenic mechanisms by which DC tolerogenicity is induced by already established agents.
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Affiliation(s)
- Urban Švajger
- Blood Transfusion Center of Slovenia, Šlajmerjeva 6, 1000 Ljubljana, Slovenia.
| | - Primož J Rožman
- Blood Transfusion Center of Slovenia, Šlajmerjeva 6, 1000 Ljubljana, Slovenia
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Strub T, Ballotti R, Bertolotto C. The "ART" of Epigenetics in Melanoma: From histone "Alterations, to Resistance and Therapies". Theranostics 2020; 10:1777-1797. [PMID: 32042336 PMCID: PMC6993228 DOI: 10.7150/thno.36218] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 11/14/2019] [Indexed: 02/07/2023] Open
Abstract
Malignant melanoma is the most deadly form of skin cancer. It originates from melanocytic cells and can also arise at other body sites. Early diagnosis and appropriate medical care offer excellent prognosis with up to 5-year survival rate in more than 95% of all patients. However, long-term survival rate for metastatic melanoma patients remains at only 5%. Indeed, malignant melanoma is known for its notorious resistance to most current therapies and is characterized by both genetic and epigenetic alterations. In cutaneous melanoma (CM), genetic alterations have been implicated in drug resistance, yet the main cause of this resistance seems to be non-genetic in nature with a change in transcription programs within cell subpopulations. This change can adapt and escape targeted therapy and immunotherapy cytotoxic effects favoring relapse. Because they are reversible in nature, epigenetic changes are a growing focus in cancer research aiming to prevent or revert the drug resistance with current therapies. As such, the field of epigenetic therapeutics is among the most active area of preclinical and clinical research with effects of many classes of epigenetic drugs being investigated. Here, we review the multiplicity of epigenetic alterations, mainly histone alterations and chromatin remodeling in both cutaneous and uveal melanomas, opening opportunities for further research in the field and providing clues to specifically control these modifications. We also discuss how epigenetic dysregulations may be exploited to achieve clinical benefits for the patients, the limitations of these therapies, and recent data exploring this potential through combinatorial epigenetic and traditional therapeutic approaches.
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Affiliation(s)
- Thomas Strub
- Université Nice Côte d'Azur, Inserm, C3M, France
- Biology and pathologies of melanocytes, Equipe labellisée ARC 2019, C3M, team 1, France
| | - Robert Ballotti
- Université Nice Côte d'Azur, Inserm, C3M, France
- Biology and pathologies of melanocytes, Equipe labellisée ARC 2019, C3M, team 1, France
| | - Corine Bertolotto
- Université Nice Côte d'Azur, Inserm, C3M, France
- Biology and pathologies of melanocytes, Equipe labellisée ARC 2019, C3M, team 1, France
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Adeshakin AO, Yan D, Zhang M, Wang L, Adeshakin FO, Liu W, Wan X. Blockade of myeloid-derived suppressor cell function by valproic acid enhanced anti-PD-L1 tumor immunotherapy. Biochem Biophys Res Commun 2019; 522:604-611. [PMID: 31785814 DOI: 10.1016/j.bbrc.2019.11.155] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 11/22/2019] [Indexed: 12/22/2022]
Abstract
Regardless of the remarkable clinical success of immune checkpoint blockade (ICB) against PD-1/PD-L1 pathway, this approach has encountered drawbacks in most patients due to the activation of tumor immunosuppressive factors such as myeloid-derived suppressor cells (MDSCs). Histone deacetylase (HDAC) inhibitors combat ICB resistance by attenuating the immunosuppressive function of MDSCs and increasing PD-L1 expression on tumor cells. However, whether an HDAC inhibitor - valproic acid (VPA) suppression of MDSCs function could enhance PD-L1 blockade-mediated tumor immunotherapy remains unknown. Here we report that VPA and anti-PD-L1 antibody combined treatment promoted the polarization of bone marrow-derived precursor cells into M-MDSCs. Interestingly, the combination treatment of VPA and anti-PD-L1 antibody activated IRF1/IRF8 transcriptional axis in MDSCs leading to blockade of their immunosuppressive function by downregulating the expression of IL-10, IL-6, and ARG1 while re-activating CD8+ T-cells for the production of TNFα to further enhance anti-tumor immunity. These observations provide further rationale for the combination therapy of VPA with anti-PD-L1 antibody in preclinical settings.
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Affiliation(s)
- Adeleye O Adeshakin
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; University of Chinese Academy of Sciences, Beijing, 100864, China
| | - Dehong Yan
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Mengqi Zhang
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; School of Basic Medical Science, Jinzhou Medical University, Jinzhou, 121000, China
| | - Lulu Wang
- Department of Pediatrics, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518053, China
| | - Funmilayo O Adeshakin
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; University of Chinese Academy of Sciences, Beijing, 100864, China
| | - Wan Liu
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xiaochun Wan
- Shenzhen Laboratory for Human Antibody Engineering, Center for Protein and Cell-based Drugs, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; University of Chinese Academy of Sciences, Beijing, 100864, China.
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Iacob S, Iacob DG. Infectious Threats, the Intestinal Barrier, and Its Trojan Horse: Dysbiosis. Front Microbiol 2019; 10:1676. [PMID: 31447793 PMCID: PMC6692454 DOI: 10.3389/fmicb.2019.01676] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023] Open
Abstract
The ecosystem of the gut microbiota consists of diverse intestinal species with multiple metabolic and immunologic activities and it is closely connected with the intestinal epithelia and mucosal immune response, with which it builds a complex barrier against intestinal pathogenic bacteria. The microbiota ensures the integrity of the gut barrier through multiple mechanisms, either by releasing antibacterial molecules (bacteriocins) and anti-inflammatory short-chain fatty acids or by activating essential cell receptors for the immune response. Experimental studies have confirmed the role of the intestinal microbiota in the epigenetic modulation of the gut barrier through posttranslational histone modifications and regulatory mechanisms induced by epithelial miRNA in the epithelial lumen. Any quantitative or functional changes of the intestinal microbiota, referred to as dysbiosis, alter the immune response, decrease epithelial permeability and destabilize intestinal homeostasis. Consequently, the overgrowth of pathobionts (Staphylococcus, Pseudomonas, and Escherichia coli) favors intestinal translocations with Gram negative bacteria or their endotoxins and could trigger sepsis, septic shock, secondary peritonitis, or various intestinal infections. Intestinal infections also induce epithelial lesions and perpetuate the risk of bacterial translocation and dysbiosis through epithelial ischemia and pro-inflammatory cytokines. Furthermore, the decline of protective anaerobic bacteria (Bifidobacterium and Lactobacillus) and inadequate release of immune modulators (such as butyrate) affects the release of antimicrobial peptides, de-represses microbial virulence factors and alters the innate immune response. As a result, intestinal germs modulate liver pathology and represent a common etiology of infections in HIV immunosuppressed patients. Antibiotic and antiretroviral treatments also promote intestinal dysbiosis, followed by the selection of resistant germs which could later become a source of infections. The current article addresses the strong correlations between the intestinal barrier and the microbiota and discusses the role of dysbiosis in destabilizing the intestinal barrier and promoting infectious diseases.
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Affiliation(s)
- Simona Iacob
- Infectious Diseases Department, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,National Institute of Infectious Diseases "Prof. Dr. Matei Balş", Bucharest, Romania
| | - Diana Gabriela Iacob
- Infectious Diseases Department, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
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Lee DY, Chiu JJ. Atherosclerosis and flow: roles of epigenetic modulation in vascular endothelium. J Biomed Sci 2019; 26:56. [PMID: 31387590 PMCID: PMC6685237 DOI: 10.1186/s12929-019-0551-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/29/2019] [Indexed: 12/18/2022] Open
Abstract
Background Endothelial cell (EC) dysfunctions, including turnover enrichment, gap junction disruption, inflammation, and oxidation, play vital roles in the initiation of vascular disorders and atherosclerosis. Hemodynamic forces, i.e., atherprotective pulsatile (PS) and pro-atherogenic oscillatory shear stress (OS), can activate mechanotransduction to modulate EC function and dysfunction. This review summarizes current studies aiming to elucidate the roles of epigenetic factors, i.e., histone deacetylases (HDACs), non-coding RNAs, and DNA methyltransferases (DNMTs), in mechanotransduction to modulate hemodynamics-regulated EC function and dysfunction. Main body of the abstract OS enhances the expression and nuclear accumulation of class I and class II HDACs to induce EC dysfunction, i.e., proliferation, oxidation, and inflammation, whereas PS induces phosphorylation-dependent nuclear export of class II HDACs to inhibit EC dysfunction. PS induces overexpression of the class III HDAC Sirt1 to enhance nitric oxide (NO) production and prevent EC dysfunction. In addition, hemodynamic forces modulate the expression and acetylation of transcription factors, i.e., retinoic acid receptor α and krüppel-like factor-2, to transcriptionally regulate the expression of microRNAs (miRs). OS-modulated miRs, which stimulate proliferative, pro-inflammatory, and oxidative signaling, promote EC dysfunction, whereas PS-regulated miRs, which induce anti-proliferative, anti-inflammatory, and anti-oxidative signaling, inhibit EC dysfunction. PS also modulates the expression of long non-coding RNAs to influence EC function. i.e., turnover, aligmant, and migration. On the other hand, OS enhances the expression of DNMT-1 and -3a to induce EC dysfunction, i.e., proliferation, inflammation, and NO repression. Conclusion Overall, epigenetic factors play vital roles in modulating hemodynamic-directed EC dysfunction and vascular disorders, i.e., atherosclerosis. Understanding the detailed mechanisms through which epigenetic factors regulate hemodynamics-directed EC dysfunction and vascular disorders can help us to elucidate the pathogenic mechanisms of atherosclerosis and develop potential therapeutic strategies for atherosclerosis treatment.
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Affiliation(s)
- Ding-Yu Lee
- Department of Biological Science and Technology, China University of Science and Technology, Taipei, 115, Taiwan
| | - Jeng-Jiann Chiu
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, 350, Taiwan. .,Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan. .,Collage of Pharmacy, Taipei Medical University, Taipei, 110, Taiwan. .,Institute of Biomedical Engineering, National Cheng Kung University, Tainan, 701, Taiwan. .,Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 106, Taiwan.
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Increase in HDAC9 suppresses myoblast differentiation via epigenetic regulation of autophagy in hypoxia. Cell Death Dis 2019; 10:552. [PMID: 31320610 PMCID: PMC6639330 DOI: 10.1038/s41419-019-1763-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/11/2019] [Accepted: 06/19/2019] [Indexed: 02/08/2023]
Abstract
Extremely reduced oxygen (O2) levels are detrimental to myogenic differentiation and multinucleated myotube formation, and chronic exposure to high-altitude hypoxia has been reported to be an important factor in skeletal muscle atrophy. However, how chronic hypoxia causes muscle dysfunction remains unknown. In the present study, we found that severe hypoxia (1% O2) significantly inhibited the function of C2C12 cells (from a myoblast cell line). Importantly, the impairment was continuously manifested even during culture under normoxic conditions for several passages. Mechanistically, we revealed that histone deacetylases 9 (HDAC9), a member of the histone deacetylase family, was significantly increased in C2C12 cells under hypoxic conditions, thereby inhibiting intracellular autophagy levels by directly binding to the promoter regions of Atg7, Beclin1, and LC3. This phenomenon resulted in the sequential dephosphorylation of GSK3β and inactivation of the canonical Wnt pathway, impairing the function of the C2C12 cells. Taken together, our results suggest that hypoxia-induced myoblast dysfunction is due to aberrant epigenetic regulation of autophagy, and our experimental evidence reveals the possible molecular pathogenesis responsible for some muscle diseases caused by chronic hypoxia and suggests a potential therapeutic option.
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Osko JD, Christianson DW. Methods for the expression, purification, and crystallization of histone deacetylase 6-inhibitor complexes. Methods Enzymol 2019; 626:447-474. [PMID: 31606087 DOI: 10.1016/bs.mie.2019.06.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Histone deacetylase (HDAC) isozymes modulate numerous regulatory signals and pathways in biological systems, hence serving as targets for drug design. For example, HDAC6 is the cytosolic tubulin deacetylase and its inhibition compromises microtubule dynamics, leading to cancer cell cycle arrest and apoptosis. The design of inhibitors that selectively target HDAC6 is desirable to avoid side effects resulting from the inhibition of off-target HDACs. High resolution X-ray crystal structures of HDAC6 have accelerated structure-based approaches to drug design targeting HDAC6. Crystal structure analysis reveals that the tubulin deacetylase domain of human HDAC6 (catalytic domain 2, also known as CD2) is very similar to that of HDAC6 CD2 from Danio rerio (zebrafish, designated zCD2). Thus, zCD2 is a valid surrogate of human HDAC6 CD2, the actual drug target; moreover, zCD2 is much more easily prepared and crystallized. A plasmid containing the zCD2 construct for heterologous expression in Escherichia coli is available through Addgene (#122031). In this chapter, we review the preparation, purification, and crystallization of zCD2-inhibitor complexes. These methods enable the rapid acquisition of structural data regarding optimal zinc-binding groups, capping groups, and linkers in the discovery of new and selective HDAC6 inhibitors.
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Affiliation(s)
- Jeremy D Osko
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, United States
| | - David W Christianson
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, United States.
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42
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Inhibitory selectivity among class I HDACs has a major impact on inflammatory gene expression in macrophages. Eur J Med Chem 2019; 177:457-466. [PMID: 31181405 DOI: 10.1016/j.ejmech.2019.05.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 02/08/2023]
Abstract
Histone deacetylases (HDACs) play an important role in cancer, degenerative diseases and inflammation. The currently applied HDAC inhibitors in the clinic lack selectivity among HDAC isoforms, which limits their application for novel indications such as inflammatory diseases. Recent, literature indicates that HDAC 3 plays an important role among class I HDACs in gene expression in inflammation. In this perspective, the development and understanding of inhibitory selectivity among HDACs 1, 2 and 3 and their respective influence on gene expression need to be characterized to facilitate drug discovery. Towards this aim, we synthesized nine structural analogues of the class I HDAC inhibitor Entinostat and investigated their selectivity profile among HDACs 1, 2 and 3. We found that we can explain the observed structure activity relationships by small structural and conformational differences between HDAC 1 and HDAC 3 in the 'lid' interacting region. Cell-based studies indicated, however, that application of inhibitors with improved HDAC 3 selectivity did not provide an anti-inflammatory response in contrast to expectations from biochemical evidence in literature. Altogether, in this study, we identified structure activity relationships among class I HDACs and we connected isoform selectivity among class I HDACs with pro- and anti-inflammatory gene transcription in macrophages.
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Mackwitz MKW, Hesping E, Antonova-Koch Y, Diedrich D, Woldearegai TG, Skinner-Adams T, Clarke M, Schöler A, Limbach L, Kurz T, Winzeler EA, Held J, Andrews KT, Hansen FK. Structure-Activity and Structure-Toxicity Relationships of Peptoid-Based Histone Deacetylase Inhibitors with Dual-Stage Antiplasmodial Activity. ChemMedChem 2019; 14:912-926. [PMID: 30664827 PMCID: PMC6502651 DOI: 10.1002/cmdc.201800808] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 12/17/2022]
Abstract
Novel malaria intervention strategies are of great importance, given the development of drug resistance in malaria-endemic countries. In this regard, histone deacetylases (HDACs) have emerged as new and promising malaria drug targets. In this work, we present the design, synthesis, and biological evaluation of 20 novel HDAC inhibitors with antiplasmodial activity. Based on a previously discovered peptoid-based hit compound, we modified all regions of the peptoid scaffold by using a one-pot multicomponent pathway and submonomer routes to gain a deeper understanding of the structure-activity and structure-toxicity relationships. Most compounds displayed potent activity against asexual blood-stage P. falciparum parasites, with IC50 values in the range of 0.0052-0.25 μm and promising selectivity over mammalian cells (SIPf3D7/HepG2 : 170-1483). In addition, several compounds showed encouraging sub-micromolar activity against P. berghei exo-erythrocytic forms (PbEEF). Our study led to the discovery of the hit compound N-(2-(benzylamino)-2-oxoethyl)-N-(4-(hydroxycarbamoyl)benzyl)-4-isopropylbenzamide (2 h) as a potent and parasite-specific dual-stage antiplasmodial HDAC inhibitor (IC50 Pf3D7=0.0052 μm, IC50 PbEEF=0.016 μm).
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Affiliation(s)
- Marcel K W Mackwitz
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany
| | - Eva Hesping
- Griffith Institute for Drug Discovery, Griffith University, Don Young Road, Nathan, QLD, 4111, Australia
| | - Yevgeniya Antonova-Koch
- Department of Pediatrics, School of Medicine, University of California, San Diego, 9500 Gilman Drive 0741, La Jolla, CA, 92093, USA
| | - Daniela Diedrich
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Tamirat Gebru Woldearegai
- Institut für Tropenmedizin, Eberhard Karls Universität Tübingen, Wilhelmstraße 27, 72074, Tübingen, Germany
| | - Tina Skinner-Adams
- Griffith Institute for Drug Discovery, Griffith University, Don Young Road, Nathan, QLD, 4111, Australia
| | - Mary Clarke
- Griffith Institute for Drug Discovery, Griffith University, Don Young Road, Nathan, QLD, 4111, Australia
| | - Andrea Schöler
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany
| | - Laura Limbach
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Thomas Kurz
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Elizabeth A Winzeler
- Department of Pediatrics, School of Medicine, University of California, San Diego, 9500 Gilman Drive 0741, La Jolla, CA, 92093, USA
| | - Jana Held
- Institut für Tropenmedizin, Eberhard Karls Universität Tübingen, Wilhelmstraße 27, 72074, Tübingen, Germany
| | - Katherine T Andrews
- Griffith Institute for Drug Discovery, Griffith University, Don Young Road, Nathan, QLD, 4111, Australia
| | - Finn K Hansen
- Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Medical Faculty, Leipzig University, Brüderstraße 34, 04103, Leipzig, Germany
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Tezcan G, Martynova EV, Gilazieva ZE, McIntyre A, Rizvanov AA, Khaiboullina SF. MicroRNA Post-transcriptional Regulation of the NLRP3 Inflammasome in Immunopathologies. Front Pharmacol 2019; 10:451. [PMID: 31118894 PMCID: PMC6504709 DOI: 10.3389/fphar.2019.00451] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022] Open
Abstract
Inflammation has a crucial role in protection against various pathogens. The inflammasome is an intracellular multiprotein signaling complex that is linked to pathogen sensing and initiation of the inflammatory response in physiological and pathological conditions. The most characterized inflammasome is the NLRP3 inflammasome, which is a known sensor of cell stress and is tightly regulated in resting cells. However, altered regulation of the NLRP3 inflammasome is found in several pathological conditions, including autoimmune disease and cancer. NLRP3 expression was shown to be post-transcriptionally regulated and multiple miRNA have been implicated in post-transcriptional regulation of the inflammasome. Therefore, in recent years, miRNA based post-transcriptional control of NLRP3 has become a focus of much research, especially as a potential therapeutic approach. In this review, we provide a summary of the recent investigations on the role of miRNA in the post-transcriptional control of the NLRP3 inflammasome, a key regulator of pro-inflammatory IL-1β and IL-18 cytokine production. Current approaches to targeting the inflammasome product were shown to be an effective treatment for diseases linked to NLRP3 overexpression. Although utilizing NLRP3 targeting miRNAs was shown to be a successful therapeutic approach in several animal models, their therapeutic application in patients remains to be determined.
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Affiliation(s)
- Gulcin Tezcan
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | | | - Zarema E. Gilazieva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alan McIntyre
- Centre for Cancer Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Albert A. Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Svetlana F. Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, NV, United States
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Selective HDAC6 inhibitors improve anti-PD-1 immune checkpoint blockade therapy by decreasing the anti-inflammatory phenotype of macrophages and down-regulation of immunosuppressive proteins in tumor cells. Sci Rep 2019; 9:6136. [PMID: 30992475 PMCID: PMC6467894 DOI: 10.1038/s41598-019-42237-3] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/19/2019] [Indexed: 01/29/2023] Open
Abstract
Histone deacetylases (HDACs) are involved in diverse cellular regulatory mechanisms including non-canonical functions outside the chromatin environment. Several publications have demonstrated that selective HDAC inhibitors (HDACi) can influence tumor immunogenicity and the functional activity of specific immune cells. In particular, the selective inhibition of HDAC6 has been reported to decrease tumor growth in several malignancies. However, there is still no clarity about the cellular components mediating this effect. In this study, we evaluated the HDAC6i Nexturastat A as a priming agent to facilitate the transition of the tumor microenvironment from “cold” to “hot”, and potentially augment immune check-point blockade therapies. This combination modality demonstrated to significantly reduce tumor growth in syngeneic melanoma tumor models. Additionally, we observed a complete neutralization of the up-regulation of PD-L1 and other immunosuppressive pathways induced by the treatment with anti-PD-1 blockade. This combination also showed profound changes in the tumor microenvironment such as enhanced infiltration of immune cells, increased central and effector T cell memory, and a significant reduction of pro-tumorigenic M2 macrophages. The evaluation of individual components of the tumor microenvironment suggested that the in vivo anti-tumor activity of HDAC6i is mediated by its effect on tumor cells and tumor-associated macrophages, and not directly over T cells. Overall, our results indicate that selective HDAC6i could be used as immunological priming agents to sensitize immunologically “cold” tumors and subsequently improve ongoing immune check-point blockade therapies.
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Iacob S, Iacob DG, Luminos LM. Intestinal Microbiota as a Host Defense Mechanism to Infectious Threats. Front Microbiol 2019; 9:3328. [PMID: 30761120 PMCID: PMC6362409 DOI: 10.3389/fmicb.2018.03328] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 12/21/2018] [Indexed: 12/12/2022] Open
Abstract
The intestinal microbiota is a complex microbial community, with diverse and stable populations hosted by the gastrointestinal tract since birth. This ecosystem holds multiple anti-infectious, anti-inflammatory, and immune modulating roles decisive for intestinal homeostasis. Among these, colonization resistance refers to the dynamic antagonistic interactions between commensals and pathogenic flora. Hence, gut bacteria compete for the same intestinal niches and substrates, while also releasing antimicrobial substances such as bacteriocines and changing the environmental conditions. Short chain fatty acids (SCFAs) generated in anaerobic conditions prompt epigenetic regulatory mechanisms that favor a tolerogenic immune response. In addition, the commensal flora is involved in the synthesis of bactericidal products, namely secondary biliary acids or antimicrobial peptides (AMPs) such as cathellicidin-LL37, an immunomodulatory, antimicrobial, and wound healing peptide. Gut microbiota is protected through symbiotic relations with the hosting organism and by quorum sensing, a specific cell-to-cell communication system. Any alterations of these relationships favor the uncontrollable multiplication of the resident pathobionts or external entero-pathogens, prompting systemic translocations, inflammatory reactions, or exacerbations of bacterial virulence mechanisms (T6SS, T3SS) and ultimately lead to gastrointestinal or systemic infections. The article describes the metabolic and immunological mechanisms through which the intestinal microbiota is both an ally of the organism against enteric pathogens and an enemy that favors the development of infections.
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Affiliation(s)
- Simona Iacob
- Department of Infectious Diseases, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,National Institute of Infectious Diseases "Prof. Dr. Matei Bals", Bucharest, Romania
| | - Diana Gabriela Iacob
- National Institute of Infectious Diseases "Prof. Dr. Matei Bals", Bucharest, Romania
| | - Luminita Monica Luminos
- Department of Infectious Diseases, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,National Institute of Infectious Diseases "Prof. Dr. Matei Bals", Bucharest, Romania
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Thankam FG, Boosani CS, Dilisio MF, Agrawal DK. Epigenetic mechanisms and implications in tendon inflammation (Review). Int J Mol Med 2019; 43:3-14. [PMID: 30387824 PMCID: PMC6257858 DOI: 10.3892/ijmm.2018.3961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 09/18/2018] [Indexed: 12/18/2022] Open
Abstract
Cellular inflammation is not just an immediate response following pathogenic infections or resulting from damage due to injury, it is also associated with normal physiological functions, including wound healing and tissue repair. The existence of such a definitive role in normal physiology and in disease pathology indicates the presence of a regulatory mechanism that is tightly controlled in normal cells. A tight control over gene expression is associated with regulatory mechanisms in the cells, which can be either inducible or epigenetic. Among other intracellular mechanisms that contribute to epigenetic gene regulation, DNA methylation has been shown to maintain a tight control over gene expression through the actions of DNA methyltransferases (DNMTs). With a clear role in developmental and tissue‑specific temporal gene regulation, the involvement of DNMTs is evident in normal and pathological conditions. In this review article, inflammation in tendons associated with disease pathology and tissue repair or regeneration at the musculoskeletal joints is critically reviewed. More specifically, the review focuses on known epigenetic mechanisms and their role in the clinical presentation of the disease in human joint disorders associated with tendon inflammation, with an emphasis on the gene regulatory mechanisms that are controlled through DNA methylation, histone deacetylation, and microRNAs.
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Affiliation(s)
| | | | - Matthew F. Dilisio
- Department of Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE 68178, USA
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Kumar S, Sharawat SK. Epigenetic regulators of programmed death-ligand 1 expression in human cancers. Transl Res 2018; 202:129-145. [PMID: 30401465 DOI: 10.1016/j.trsl.2018.05.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 05/31/2018] [Accepted: 05/31/2018] [Indexed: 02/08/2023]
Abstract
The programmed cell death protein 1-programmed death-ligand 1 (PD-L1) axis has been successfully targeted in clinics and the use of immune check-point inhibitors have shown durable antitumor response in untreated or heavily treated advanced stage cancer. PD-L1 upregulation has been found to correlate with poor prognosis in multiple cancer types and expression of PD-L1 in intratumoral compartment has been suggested to influence immune response and act as a key determinant of checkpoint immunotherapy efficacy. Hence it becomes critical to understand the regulation of PD-L1 expression in cancer. Role of oncogenic signaling pathways and transcription factors such as PI3K-AKT, MEK-ERK, JAK-STAT, MYC, HIF-1α, AP-1 and NF-κB is well established in inducing PD-L1 expression. Even the structural variations resulting in the truncation of the 3' untranslated region (UTR) of PD-L1 has been shown to upregulate PD-L1 expression in multiple cancer types. Since microRNAs carry out post-transcriptional gene silencing by binding to the 3' UTR of its target messenger RNA, truncation of PD-L1 3' UTR can result in alleviation of PD-L1 suppression mediated by microRNA, leading to its overexpression. Other epigenetic modifications, such as promoter DNA methylation and histone modifications can also play crucial role in regulating PD-L1 expression. Here, we review recent findings and evidence on epigenetic mechanisms that regulate PD-L1 expression and the biological and clinical implications of such regulation in cancer.
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Affiliation(s)
- Sachin Kumar
- Dept. of Medical Oncology, Dr. B R Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
| | - Surender Kumar Sharawat
- Dept. of Medical Oncology, Dr. B R Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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Keremu A, Aimaiti A, Liang Z, Zou X. Role of the HDAC6/STAT3 pathway in regulating PD-L1 expression in osteosarcoma cell lines. Cancer Chemother Pharmacol 2018; 83:255-264. [PMID: 30430228 DOI: 10.1007/s00280-018-3721-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/24/2018] [Indexed: 12/20/2022]
Abstract
Histone deacetylases (HDACs), initially described as histone modifiers, have more recently been verified to target various other proteins unrelated to the chromatin environment. On this basis, findings of the current study demonstrates that the pharmacological or genetic abrogation of HDAC6 in osteosarcoma cell lines down-regulates the expression of program death receptor ligand-1 (PD-L1), an important co-stimulatory molecule expressed in cancer cells, which activates the inhibitory regulatory pathway PD-1 in T cells. As shown by our results, the mechanism by which HDAC6 regulated PD-L1 expression was mediated by the transcription factor STAT3. In addition, we observed that selective HDAC6 inhibitors could inhibit tumor progression in vivo. Crucially, these results provide an essential pre-clinical rationale and justification for the necessity of further research on HDAC6 inhibitors as potential immuno-modulatory agents in osteosarcoma.
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Affiliation(s)
- Ajimu Keremu
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China
| | - Abudusaimi Aimaiti
- Orthopedic Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Zhilin Liang
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China
| | - Xiaoguang Zou
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China.
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Novel spiroindoline HDAC inhibitors: Synthesis, molecular modelling and biological studies. Eur J Med Chem 2018; 157:127-138. [DOI: 10.1016/j.ejmech.2018.07.069] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/27/2018] [Accepted: 07/29/2018] [Indexed: 02/08/2023]
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