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Lu Y, Zhao Y, Gao C, Suresh S, Men J, Sawyers A, Smith GL. HDAC5 enhances IRF3 activation and is targeted for degradation by protein C6 from orthopoxviruses including Monkeypox virus and Variola virus. Cell Rep 2024; 43:113788. [PMID: 38461415 DOI: 10.1016/j.celrep.2024.113788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/18/2023] [Accepted: 01/26/2024] [Indexed: 03/12/2024] Open
Abstract
Histone deacetylases (HDACs) regulate gene expression and innate immunity. Previously, we showed that HDAC5 is degraded during Vaccinia virus (VACV) infection and is a restriction factor for VACV and herpes simplex virus type 1. Here, we report that HDAC5 promotes interferon regulatory factor 3 (IRF3) activation downstream of Toll-IL-1 receptor (TIR) domain-containing adaptor molecule-1 or Sendai virus-mediated stimulation without requiring HDAC activity. Loss of HDAC5-mediated IRF3 activation is restored by re-introduction of HDAC5 but not HDAC1 or HDAC4. The antiviral activity of HDAC5 is antagonized by VACV protein C6 and orthologs from the orthopoxviruses cowpox, rabbitpox, camelpox, monkeypox, and variola. Infection by many of these viruses induces proteasomal degradation of HDAC5, and expression of C6 alone can induce HDAC5 degradation. Mechanistically, C6 binds to the dimerization domain of HDAC5 and prevents homodimerization and heterodimerization with HDAC4. Overall, this study describes HDAC5 as a positive regulator of IRF3 activation and provides mechanistic insight into how the poxviral protein C6 binds to HDAC5 to antagonize its function.
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Affiliation(s)
- Yongxu Lu
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK; Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK; Chinese Academy of Medical Sciences-Oxford Institute, University of Oxford, Oxford, UK.
| | - Yiqi Zhao
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK; Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK; Chinese Academy of Medical Sciences-Oxford Institute, University of Oxford, Oxford, UK
| | - Chen Gao
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Shreehari Suresh
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Jinghao Men
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Amelia Sawyers
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Geoffrey L Smith
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK; Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK; The Pirbright Institute, Surrey, UK; Chinese Academy of Medical Sciences-Oxford Institute, University of Oxford, Oxford, UK.
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Westlund KN, Montera M, Goins AE, Shilling MW, Afaghpour-Becklund M, Alles SR, Hui SE. Epigenetic HDAC5 Inhibitor Reverses Craniofacial Neuropathic Pain in Mice. J Pain 2024; 25:428-450. [PMID: 37777035 PMCID: PMC10842645 DOI: 10.1016/j.jpain.2023.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
Identifying and resolving molecular complexities underlying chronic neuropathic pain is a significant challenge. Among the numerous classes of histone deacetylases, Class I (HDAC 1-3) and Class III (sirtuins) have been best studied in experimental pain models where inhibitor pre-treatments but not post-treatments abrogate the development of pain-related behaviors. Post-treatment here in week 3 with less well-studied Class IIa HDAC4/5 selective inhibitor LMK235 diminishes the trigeminal ganglia increases of HDAC5 RNA and protein in two chronic orofacial neuropathic pain models to levels measured in naïve mice at week 10 post-model induction. HDAC4 RNA reported in lower limb inflammatory pain models is not evident in the trigeminal models. Many other gene alterations persisting at week 10 in the trigeminal ganglia (TG) are restored to naïve levels in mice treated with LMK235. Important pain-related upregulated genes Hoxc8,b9,d8; P2rx4, Cckbr, growth hormone (Gh), and schlafen (Slfn4) are greatly reduced in LMK235-treated mice. Fold increase in axon regeneration/repair genes Sostdc1, TTr, and Folr1 after injury are doubled by LMK235 treatment. LMK235 reduces the excitability of trigeminal ganglia neurons in culture isolated from nerve injured mice compared to vehicle-treated controls, with no effect on neurons from naïve mice. Electrophysiological characterization profile includes a shift where ∼20% of the small neurons recorded under LMK235-treated conditions are high threshold, whereas none of the neurons under control conditions have high thresholds. LMK235 reverses long-standing mechanical and cold hypersensitivity in chronic trigeminal neuropathic pain models in males and females (5,10 mg/kg), preventing development of anxiety- and depression-like behaviors. PERSPECTIVE: Data here support HDAC5 as key epigenetic factor in chronic trigeminal neuropathic pain persistence, validated with the study of RNA alterations, TG neuronal excitability, and pain-related behaviors. HDAC5 inhibitor given in week 3 restores RNA balance at 10 weeks, while upregulation remains for response to wound healing and chronic inflammation RNAs.
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Affiliation(s)
- Karin N. Westlund
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - Marena Montera
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - Aleyah E. Goins
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - Mark W. Shilling
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - Mitra Afaghpour-Becklund
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - Sascha R.A. Alles
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
| | - S. Elise Hui
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131
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Luo G, Liu B, Fu T, Liu Y, Li B, Li N, Geng Q. The Role of Histone Deacetylases in Acute Lung Injury-Friend or Foe. Int J Mol Sci 2023; 24:ijms24097876. [PMID: 37175583 PMCID: PMC10178380 DOI: 10.3390/ijms24097876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/04/2023] [Accepted: 04/14/2023] [Indexed: 05/15/2023] Open
Abstract
Acute lung injury (ALI), caused by intrapulmonary or extrapulmonary factors such as pneumonia, shock, and sepsis, eventually disrupts the alveolar-capillary barrier, resulting in diffuse pulmonary oedema and microatasis, manifested by refractory hypoxemia, and respiratory distress. Not only is ALI highly lethal, but even if a patient survives, there are also multiple sequelae. Currently, there is no better treatment than supportive care, and we urgently need to find new targets to improve ALI. Histone deacetylases (HDACs) are epigenetically important enzymes that, together with histone acetylases (HATs), regulate the acetylation levels of histones and non-histones. While HDAC inhibitors (HDACis) play a therapeutic role in cancer, inflammatory, and neurodegenerative diseases, there is also a large body of evidence suggesting the potential of HDACs as therapeutic targets in ALI. This review explores the unique mechanisms of HDACs in different cell types of ALI, including macrophages, pulmonary vascular endothelial cells (VECs), alveolar epithelial cells (AECs), and neutrophils.
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Affiliation(s)
- Guoqing Luo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Bohao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Tinglv Fu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Boyang Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Gao Y, Liu Y, Zheng D, Ho C, Wen D, Sun J, Huang L, Liu Y, Li Q, Zhang Y. HDAC5-mediated Smad7 silencing through MEF2A is critical for fibroblast activation and hypertrophic scar formation. Int J Biol Sci 2022; 18:5724-5739. [PMID: 36263180 PMCID: PMC9576526 DOI: 10.7150/ijbs.76140] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/25/2022] [Indexed: 01/12/2023] Open
Abstract
Transforming growth factor-β (TGF-β) signaling plays a key role in excessive fibrosis. As a class IIa family histone deacetylase (HDAC), HDAC5 shows a close relationship with TGF-β signaling and fibrosis. However, the effect and regulatory mechanism of HDAC5 in hypertrophic scar (HS) formation remain elusive. We show that HDAC5 was overexpressed in HS tissues and depletion of HDAC5 attenuated HS formation in vivo and inhibited fibroblast activation in vitro. HDAC5 knockdown (KD) significantly downregulated TGF-β1 induced Smad2/3 phosphorylation and increased Smad7 expression. Meanwhile, Smad7 KD rescued the Smad2/3 phosphorylation downregulation and scar hyperplasia inhibition mediated by HDAC5 deficiency. Luciferase reporter assays and ChIP-qPCR assays revealed that HDAC5 interacts with myocyte enhancer factor 2A (MEF2A) suppressing MEF2A binding to the Smad7 promoter region, which results in Smad7 promoter activity repression. HDAC4/5 inhibitor, LMK235, significantly alleviated hypertrophic scar formation. Our study provides clues for the development of HDAC5 targeting strategies for the therapy or prophylaxis of fibrotic diseases.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Qingfeng Li
- ✉ Corresponding authors: Yifan Zhang and Qingfeng Li. Address: 639 Zhizaoju Road, Depart of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. Tel: +86-21-23271699-5124; Fax: +86-21-63089567; E-mail addresses: (Yifan Zhang), (Qingfeng Li)
| | - Yifan Zhang
- ✉ Corresponding authors: Yifan Zhang and Qingfeng Li. Address: 639 Zhizaoju Road, Depart of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. Tel: +86-21-23271699-5124; Fax: +86-21-63089567; E-mail addresses: (Yifan Zhang), (Qingfeng Li)
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Sehgal M, Jakhete SM, Manekar AG, Sasikumar S. Specific epigenetic regulators serve as potential therapeutic targets in idiopathic pulmonary fibrosis. Heliyon 2022; 8:e09773. [PMID: 36061031 PMCID: PMC9434059 DOI: 10.1016/j.heliyon.2022.e09773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/27/2022] [Accepted: 06/17/2022] [Indexed: 12/15/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF), a disorder observed mostly in older human beings, is characterised by chronic and progressive lung scarring leading to an irreversible decline in lung function. This health condition has a dismal prognosis and the currently available drugs only delay but fail to reverse the progression of lung damage. Consequently, it becomes imperative to discover improved therapeutic compounds and their cellular targets to cure IPF. In this regard, a number of recent studies have targeted the epigenetic regulation by histone deacetylases (HDACs) to develop and categorise antifibrotic drugs for lungs. Therefore, this review focuses on how aberrant expression or activity of Classes I, II and III HDACs alter TGF-β signalling to promote events such as epithelial-mesenchymal transition, differentiation of activated fibroblasts into myofibroblasts, and excess deposition of the extracellular matrix to propel lung fibrosis. Further, this study describes how certain chemical compounds or dietary changes modulate dysregulated HDACs to attenuate five faulty TGF-β-dependent profibrotic processes, both in animal models and cell lines replicating IPF, thereby identifying promising means to treat this lung disorder.
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Affiliation(s)
- Manas Sehgal
- Genetics and Molecular Biology Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune, Maharashtra, PIN - 411033, India
| | - Sharayu Manish Jakhete
- Genetics and Molecular Biology Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune, Maharashtra, PIN - 411033, India
| | - Amruta Ganesh Manekar
- Genetics and Molecular Biology Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune, Maharashtra, PIN - 411033, India
| | - Satish Sasikumar
- Genetics and Molecular Biology Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune, Maharashtra, PIN - 411033, India
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Ye J, Zhong S, Deng Y, Yao X, Liu Q, Wang JZ, Xiao S. HDAC7 Activates IKK/NF-κB Signaling to Regulate Astrocyte-Mediated Inflammation. Mol Neurobiol 2022; 59:6141-6157. [PMID: 35871708 PMCID: PMC9309093 DOI: 10.1007/s12035-022-02965-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/16/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Jinwang Ye
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060 China
| | - Suyue Zhong
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
| | - Yunsong Deng
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
| | - Xuanbao Yao
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
| | - Qiong Liu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
- Shenzhen Bay Laboratory, Shenzhen, 518055 Guangdong China
| | - Jian-Zhi Wang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Shifeng Xiao
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060 Guangdong China
- Shenzhen Bay Laboratory, Shenzhen, 518055 Guangdong China
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