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Patil RS, Maloney ME, Lucas R, Fulton DJR, Patel V, Bagi Z, Kovacs-Kasa A, Kovacs L, Su Y, Verin AD. Zinc-Dependent Histone Deacetylases in Lung Endothelial Pathobiology. Biomolecules 2024; 14:140. [PMID: 38397377 PMCID: PMC10886568 DOI: 10.3390/biom14020140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/25/2024] Open
Abstract
A monolayer of endothelial cells (ECs) lines the lumen of blood vessels and, as such, provides a semi-selective barrier between the blood and the interstitial space. Compromise of the lung EC barrier due to inflammatory or toxic events may result in pulmonary edema, which is a cardinal feature of acute lung injury (ALI) and its more severe form, acute respiratory distress syndrome (ARDS). The EC functions are controlled, at least in part, via epigenetic mechanisms mediated by histone deacetylases (HDACs). Zinc-dependent HDACs represent the largest group of HDACs and are activated by Zn2+. Members of this HDAC group are involved in epigenetic regulation primarily by modifying the structure of chromatin upon removal of acetyl groups from histones. In addition, they can deacetylate many non-histone histone proteins, including those located in extranuclear compartments. Recently, the therapeutic potential of inhibiting zinc-dependent HDACs for EC barrier preservation has gained momentum. However, the role of specific HDAC subtypes in EC barrier regulation remains largely unknown. This review aims to provide an update on the role of zinc-dependent HDACs in endothelial dysfunction and its related diseases. We will broadly focus on biological contributions, signaling pathways and transcriptional roles of HDACs in endothelial pathobiology associated mainly with lung diseases, and we will discuss the potential of their inhibitors for lung injury prevention.
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Affiliation(s)
- Rahul S. Patil
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - McKenzie E. Maloney
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Rudolf Lucas
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - David J. R. Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Vijay Patel
- Department of Cardiothoracic Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Zsolt Bagi
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Anita Kovacs-Kasa
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Laszlo Kovacs
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Alexander D. Verin
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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2
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Truong N, Cottingham AL, Dharmaraj S, Shaw JR, Lasola JJM, Goodis CC, Fletcher S, Pearson RM. Multimodal nanoparticle-containing modified suberoylanilide hydroxamic acid polymer conjugates to mitigate immune dysfunction in severe inflammation. Bioeng Transl Med 2024; 9:e10611. [PMID: 38193117 PMCID: PMC10771562 DOI: 10.1002/btm2.10611] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/04/2023] [Accepted: 10/01/2023] [Indexed: 01/10/2024] Open
Abstract
Excessive immune activation and immunosuppression are opposing factors that contribute to the dysregulated innate and adaptive immune responses seen in severe inflammation and sepsis. Here, a novel analog of the histone deacetylase inhibitor (HDACi), suberoylanilide hydroxamic acid (SAHA-OH), was incorporated into immunomodulatory poly(lactic acid)-based nanoparticles (iNP-SAHA) by employing a prodrug approach through the covalent modification of poly(lactic-co-glycolic acid) (PLGA) with SAHA-OH. iNP-SAHA formulation allowed for controlled incorporation and delivery of SAHA-OH from iNP-SAHA and treatment led to multimodal biological responses including significant reductions in proinflammatory cytokine secretions and gene expression, while increasing the survival of primary macrophages under lipopolysaccharide (LPS) challenge. Using a lethal LPS-induced endotoxemia mouse model of sepsis, iNP-SAHA administration improved the survival of mice in a dose-dependent manner and tended to improve survival at the lowest doses compared to iNP control. Further, iNP-SAHA reduced the levels of plasma proinflammatory cytokines and chemokines associated with sepsis more significantly than iNP and similarly improved inflammation-induced spleen and liver toxicity as iNP, supporting its potential polypharmacological activity. Collectively, iNP-SAHA offers a potential drug delivery approach to modulate the multifaceted inflammatory responses observed in diseases such as sepsis.
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Affiliation(s)
- Nhu Truong
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
| | - Andrea L. Cottingham
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
| | - Shruti Dharmaraj
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
| | - Jacob R. Shaw
- Department of Microbiology and ImmunologyUniversity of Maryland School of MedicineBaltimoreMarylandUSA
| | | | - Christopher C. Goodis
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
| | - Steven Fletcher
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
| | - Ryan M. Pearson
- Department of Pharmaceutical SciencesUniversity of Maryland School of PharmacyBaltimoreMarylandUSA
- Department of Microbiology and ImmunologyUniversity of Maryland School of MedicineBaltimoreMarylandUSA
- Marlene and Stewart Greenebaum Comprehensive Cancer CenterUniversity of Maryland School of MedicineBaltimoreMarylandUSA
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3
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Fadel L, Dacic M, Fonda V, Sokolsky BA, Quagliarini F, Rogatsky I, Uhlenhaut NH. Modulating glucocorticoid receptor actions in physiology and pathology: Insights from coregulators. Pharmacol Ther 2023; 251:108531. [PMID: 37717739 PMCID: PMC10841922 DOI: 10.1016/j.pharmthera.2023.108531] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
Glucocorticoids (GCs) are a class of steroid hormones that regulate key physiological processes such as metabolism, immune function, and stress responses. The effects of GCs are mediated by the glucocorticoid receptor (GR), a ligand-dependent transcription factor that activates or represses the expression of hundreds to thousands of genes in a tissue- and physiological state-specific manner. The activity of GR is modulated by numerous coregulator proteins that interact with GR in response to different stimuli assembling into a multitude of DNA-protein complexes and facilitate the integration of these signals, helping GR to communicate with basal transcriptional machinery and chromatin. Here, we provide a brief overview of the physiological and molecular functions of GR, and discuss the roles of GR coregulators in the immune system, key metabolic tissues and the central nervous system. We also present an analysis of the GR interactome in different cells and tissues, which suggests tissue-specific utilization of GR coregulators, despite widespread functions shared by some of them.
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Affiliation(s)
- Lina Fadel
- Institute for Diabetes and Endocrinology IDE, Helmholtz Munich, Ingolstaedter Landstr. 1, 857649 Neuherberg, Germany
| | - Marija Dacic
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA; Graduate Program in Physiology, Biophysics and Systems Biology, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Vlera Fonda
- Institute for Diabetes and Endocrinology IDE, Helmholtz Munich, Ingolstaedter Landstr. 1, 857649 Neuherberg, Germany
| | - Baila A Sokolsky
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA; Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Fabiana Quagliarini
- Institute for Diabetes and Endocrinology IDE, Helmholtz Munich, Ingolstaedter Landstr. 1, 857649 Neuherberg, Germany
| | - Inez Rogatsky
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA; Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
| | - N Henriette Uhlenhaut
- Institute for Diabetes and Endocrinology IDE, Helmholtz Munich, Ingolstaedter Landstr. 1, 857649 Neuherberg, Germany; Metabolic Programming, TUM School of Life Sciences & ZIEL Institute for Food and Health, Gregor11 Mendel-Str. 2, 85354 Freising, Germany.
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4
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Shi X, Lv X, Xiao D. Gossypol improves myocardial dysfunction caused by sepsis by regulating histone acetylation. Clin Transl Sci 2023; 16:2189-2197. [PMID: 37626472 PMCID: PMC10651647 DOI: 10.1111/cts.13618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Gossypol is a polyphenol from the cotton plant with anti-inflammatory and anti-oxidation activities and can also function as a histone deacetylase (HDAC) inhibitor. Sepsis is an inflammatory disease with high mortality. Inflammation, oxidative stress, and epigenetic factors are involved in sepsis and its complications. The biological activities of gossypol strongly suggest the potential effects of gossypol on sepsis. In the present study, the beneficial effects of gossypol on sepsis were evaluated. We established a cecal ligation and puncture (CLP) mouse model of sepsis and treated CLP mice with gossypol. The survival rate, serum level of myocardial injury markers, and myocardial level of oxidation markers were measured. We also administered gossypol to lipopolysaccharide (LPS)-treated primary cardiomyocytes. The production of pro-inflammatory cytokines, activation of protein kinase B (AKT) and IκB kinase (IKK), acetylation of histone, and expression of HDACs were measured. Gossypol prevented the death of CLP mice and ameliorated myocardial damage in CLP mice. Moreover, gossypol decreased oxidative factors, while promoting antioxidant production in CLP mice. Gossypol prevented LPS and cytosine-phosphate-guanosine-induced expression of pro-inflammatory cytokines, suppressed LPS-induced activation of AKT and IKK, inhibited histone acetylation, and decreased the expression of HDACs. In conclusion, gossypol ameliorates myocardial dysfunction in mice with sepsis.
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Affiliation(s)
- Xiaohui Shi
- Department of Critical Care MedicinePeople's Hospital of Xinjiang Uygur Autonomous RegionXinjiangChina
| | - Xinwei Lv
- Department of Critical Care MedicinePeople's Hospital of Xinjiang Uygur Autonomous RegionXinjiangChina
| | - Dong Xiao
- Department of Critical Care MedicinePeople's Hospital of Xinjiang Uygur Autonomous RegionXinjiangChina
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5
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Wu Y, He Y, Liu C, Ehle C, Iyer-Bierhoff A, Liu B, Heinzel T, Xing S. Histone Deacetylase Inhibitor (SAHA) Reduces Mortality in an Endotoxemia Mouse Model by Suppressing Glycolysis. Int J Mol Sci 2023; 24:12448. [PMID: 37569823 PMCID: PMC10418975 DOI: 10.3390/ijms241512448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Sepsis is a life-threatening medical emergency triggered by excessive inflammation in response to an infection. High mortality rates and limited therapeutic options pose significant challenges in sepsis treatment. Histone deacetylase inhibitors (HDACi), such as suberoylanilide hydroxamic acid (SAHA), have been proposed as potent anti-inflammatory agents for treating inflammatory diseases. However, the underlying mechanisms of sepsis treatment remain poorly understood. In this study, we investigated the effects of SAHA treatment in the lipopolysaccharide (LPS)-induced endotoxemia mouse model as it closely mimics the early stages of the systemic inflammation of sepsis. Our results demonstrate a reduced inflammatory mediator secretion and improved survival rates in mice. Using quantitative acetylomics, we found that SAHA administration increases the acetylation of lactate dehydrogenase (LDHA), and consequently inhibits LDHA activity. Notably, the reduced enzyme activity of LDHA results in a reduced rate of glycolysis. Furthermore, our experiments with bone marrow-derived macrophages (BMDMs) show that SAHA administration reduced oxidative stress and extracellular ATP concentrations, ultimately blunting inflammasome activation. Overall, our study provides insights into the mechanism underlying SAHA's therapeutic effects in sepsis treatment and highlights LDHA as a potential target for developing novel sepsis treatment.
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Affiliation(s)
- Yunchen Wu
- School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
- Center for Molecular Biomedicine, Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, 07745 Jena, Germany
| | - Yudan He
- School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Chen Liu
- School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Charlotte Ehle
- Center for Molecular Biomedicine, Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, 07745 Jena, Germany
| | - Aishwarya Iyer-Bierhoff
- Center for Molecular Biomedicine, Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, 07745 Jena, Germany
| | - Bing Liu
- School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Thorsten Heinzel
- Center for Molecular Biomedicine, Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, 07745 Jena, Germany
| | - Shaojun Xing
- School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
- The First Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen 518055, China
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6
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Zhang Q, Wang C, Li S, Li Y, Chen M, Hu Y. Screening of core genes prognostic for sepsis and construction of a ceRNA regulatory network. BMC Med Genomics 2023; 16:37. [PMID: 36855106 PMCID: PMC9976425 DOI: 10.1186/s12920-023-01460-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
OBJECTIVE To screen out core genes potentially prognostic for sepsis and construct a competing endogenous RNA (ceRNA) regulatory network. METHODS Subjects included in this project were 23 sepsis patients and 10 healthy people. RNA-seq for lncRNA, miRNA and mRNA was performed in the peripheral blood samples. Differentially expressed RNAs (DER) were screened out for further analysis. GO annotation and GSEA functional clustering were performed to view the functional enrichment of DEmRNAs. Core genes of prognostic significance were screened out with the weighted correlation network analysis (WGCNA). Meta-analysis and Survival analysis was devised in different microarray datasets. RT-qPCR was conducted to validate these core genes. A ceRNA network was accordingly constructed according to the correlation analysis and molecular interaction prediction. RESULTS RNA-seq and differential analysis screened out 1,044 DEmRNAs, 66 DEmiRNAs and 155 DElncRNAs. The GO and GSEA analysis revealed that DEmRNAs are mainly involved in inflammatory response, immune regulation, neutrophil activation. WGCNA revealed 4 potential core genes, including CD247, IL-2Rβ, TGF-βR3 and IL-1R2. In vitro cellular experiment showed up-regulated expression of IL-1R2 while down-regulated of CD247, IL-2Rβ, TGF-βR3 in sepsis patients. Correspondingly, a ceRNA regulatory network was build based on the core genes, and multiple lncRNAs and miRNAs were identified to have a potential regulatory role in sepsis. CONCLUSION This study identified four core genes, including CD247, IL-1R2, IL-2Rβ and TGF-βR3, with potential to be novel biomarkers for the prognosis of sepsis. In the meantime, a ceRNA network was constructed aiming to guide further study on prognostic mechanism in sepsis.
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Affiliation(s)
- Qian Zhang
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Chenglin Wang
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Shilin Li
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yang Li
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Muhu Chen
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yingchun Hu
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
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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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8
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Wu D, Shi Y, Zhang H, Miao C. Epigenetic mechanisms of Immune remodeling in sepsis: targeting histone modification. Cell Death Dis 2023; 14:112. [PMID: 36774341 PMCID: PMC9922301 DOI: 10.1038/s41419-023-05656-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/13/2023]
Abstract
Sepsis is a life-threatening disorder disease defined as infection-induced dysregulated immune responses and multiple organ dysfunction. The imbalance between hyperinflammation and immunosuppression is a crucial feature of sepsis immunity. Epigenetic modifications, including histone modifications, DNA methylation, chromatin remodeling, and non-coding RNA, play essential roles in regulating sepsis immunity through epi-information independent of the DNA sequence. In recent years, the mechanisms of histone modification in sepsis have received increasing attention, with ongoing discoveries of novel types of histone modifications. Due to the capacity for prolonged effects on immune cells, histone modifications can induce immune cell reprogramming and participate in the long-term immunosuppressed state of sepsis. Herein, we systematically review current mechanisms of histone modifications involved in the regulation of sepsis, summarize their role in sepsis from an immune perspective and provide potential therapeutic opportunities targeting histone modifications in sepsis treatment.
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Affiliation(s)
- Dan Wu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuxin Shi
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China.
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9
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Lindemann H, Kühne M, Koschella A, Godmann M, Heinzel T, Heinze T. HDACi Delivery Systems Based on Cellulose Valproate Nanoparticles. Methods Mol Biol 2023; 2589:195-205. [PMID: 36255626 DOI: 10.1007/978-1-0716-2788-4_13] [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] [Indexed: 06/16/2023]
Abstract
The ability of histone deacetylase inhibitors (HDACi) like valproic acid (VPA) as a therapeutic for inflammatory diseases or cancer has increased the interest in HDACi and their targeted transport to diseased tissues. Administration of VPA immobilized on polymeric carriers was found to be a suitable approach to circumvent drawbacks such as rapid metabolization, short serum half-life, or side effects. Polysaccharides are convenient biopolymeric carriers due to their biocompatibility and biodegradability. Furthermore, the hydroxy-, amino-, or carboxylic groups are predestinated for functionalization. The esterification of three hydroxy groups of cellulose with VPA leads to products having a high amount of VPA loading. Subsequent shaping yielded uniform nanoparticles (NPs) of around 150 nm in size capable of releasing VPA in a controlled way under physiological conditions.
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Affiliation(s)
- Henry Lindemann
- Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Friedrich Schiller University Jena, Jena, Germany
| | - Marie Kühne
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University Jena, Jena, Germany
| | - Andreas Koschella
- Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Friedrich Schiller University Jena, Jena, Germany
| | - Maren Godmann
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University Jena, Jena, Germany
| | - Thorsten Heinzel
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University Jena, Jena, Germany
| | - Thomas Heinze
- Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Friedrich Schiller University Jena, Jena, Germany.
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10
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Li L, Xie W. LncRNA HDAC11-AS1 Suppresses Atherosclerosis by Inhibiting HDAC11-Mediated Adropin Histone Deacetylation. J Cardiovasc Transl Res 2022; 15:1256-1269. [PMID: 35505157 DOI: 10.1007/s12265-022-10248-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/31/2022] [Indexed: 12/16/2022]
Abstract
LncRNA HDAC11-AS1 (HDAC11-AS1) is the natural antisense transcript of HDAC11, a key enzyme for DNA histone deacetylation. We evaluated the role of HDAC11-AS1 in atherosclerosis. In this research, we found that HDAC11-AS1 ameliorated blood lipid levels and atherosclerosis in high fat-dieted apoE-/- mice by regulating HDAC11 negatively. The change in blood lipid levels is related to the expression of LPL, which is enhanced by HDAC11-AS1 through regulating adropin histone deacetylation in vitro and in vivo. In conclusion, HDAC11-AS1 plays an anti-atherogenic role through adropin to induce LPL expressions, thereby enhancing TG metabolism. The results are valuable for the further development of HDAC11-AS1 and its clinical applications. It provides a new clinical therapeutic target for cardiovascular disease treatment.
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Affiliation(s)
- Liang Li
- Department of Physiology, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Wei Xie
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
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11
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Truong N, Goodis CC, Cottingham AL, Shaw JR, Fletcher S, Pearson RM. Modified Suberoylanilide Hydroxamic Acid Reduced Drug-Associated Immune Cell Death and Organ Damage under Lipopolysaccharide Inflammatory Challenge. ACS Pharmacol Transl Sci 2022; 5:1128-1141. [PMID: 36407956 PMCID: PMC9667537 DOI: 10.1021/acsptsci.2c00119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 11/29/2022]
Abstract
Histone deacetylase inhibitors (HDACi) induce potent anti-inflammatory responses when used to treat inflammatory diseases. Suberoylanilide hydroxamic acid (SAHA), a pan-HDACi, decreases pro-inflammatory cytokine levels and attenuates cytokine storm in sepsis; however, its toxicity profile toward immune cells has limited its use as a sepsis therapeutic. Here, we developed a modification to SAHA by para-hydroxymethylating the capping group to generate SAHA-OH. We discovered that SAHA-OH provides a favorable improvement to the toxicity profile compared to SAHA. SAHA-OH significantly reduced primary macrophage apoptosis and splenic B cell death as well as mitigated organ damage using a lipopolysaccharide (LPS)-induced endotoxemia mouse model. Furthermore, SAHA-OH retained anti-inflammatory responses similar to SAHA as measured by reductions in LPS-induced proinflammatory cytokine secretions in vitro and in vivo. These effects were attributed to a decreased selectivity of HDAC1, 2, 3, 8 and an increased selectivity for HDAC6 for SAHA-OH as determined by IC50 values. Our results support the potential for SAHA-OH to modulate acute proinflammatory responses while mitigating SAHA-associated drug toxicity for use in the treatment of inflammation-associated diseases and conditions.
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Affiliation(s)
- Nhu Truong
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Christopher C. Goodis
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Andrea L. Cottingham
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Jacob R. Shaw
- Department
of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, Maryland 21201, United States
| | - Steven Fletcher
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Ryan M. Pearson
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
- Department
of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, Maryland 21201, United States
- Marlene
and Stewart Greenbaum Comprehensive Cancer Center, School of Medicine, University of Maryland, Baltimore, Maryland 21201, United States
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12
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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: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [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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13
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Nong R, Qin C, Lin Q, Lu Y, Li J. Down-regulated HDAC1 and up-regulated microRNA-124-5p recover myocardial damage of septic mice. Bioengineered 2022; 13:7168-7180. [PMID: 35285407 PMCID: PMC9278975 DOI: 10.1080/21655979.2022.2034583] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Studies have revealed the relationship between histone deacetylases (HDACs)/microRNAs (miRNAs) and sepsis, but little has ever investigated the mechanism of HDAC1/miR-124-5p in sepsis. Herein, we studied the impacts of HDAC1/miR-124-5p on myocardial damage of septic mice via regulating high-mobility group box chromosomal protein 1 (HMGB1). Septic mice were induced by cecal ligation and puncture. HDAC1, miR-124-5p and HMGB1 expression in myocardial tissues of septic mice were detected. Septic mice were injected with HDAC1 low expression-, miR-124-5p high expression- or HMGB1 low expression-related structures to observe cardiac function, inflammatory response, oxidative stress response, myocardial pathological changes and apoptosis in myocardial tissues of septic mice. The relationship of HDAC1/miR-124-5p/HMGB1 was verified. HDAC1 and HMGB1 expression were upregulated while miR-124-5p expression was decreased in myocardial tissues of septic mice. Restored miR-124-5p/depleted HDAC1 or HMGB1 recovered the cardiac function, improved cardiac function, inflammatory response, oxidative stress response, myocardial pathological changes and inhibit ed cardiomyocyte apoptosis in septic mice. HDAC1 bound to miR-124-5p which directly targeted HMGB1. This study suggests that down-regulated HDAC1 or up-regulated miR-124-5p recovers myocardial damage of septic mice via decreasing HMGB1.
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Affiliation(s)
- Rongmao Nong
- Department of Icu (Intensive Care Unit), The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- The First Clinical Medical College of Jinan University, Guangzhou, China
| | - Chunyan Qin
- Department of Icu (Intensive Care Unit), The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- The First Clinical Medical College of Jinan University, Guangzhou, China
| | - Qiqing Lin
- Emergency Department, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yi Lu
- The First Clinical Medical College of Jinan University, Guangzhou, China
| | - Jun Li
- The First Clinical Medical College of Jinan University, Guangzhou, China
- Department of Respiratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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14
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Co-varying neighborhood analysis identifies cell populations associated with phenotypes of interest from single-cell transcriptomics. Nat Biotechnol 2022; 40:355-363. [PMID: 34675423 PMCID: PMC8930733 DOI: 10.1038/s41587-021-01066-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 08/18/2021] [Indexed: 02/08/2023]
Abstract
As single-cell datasets grow in sample size, there is a critical need to characterize cell states that vary across samples and associate with sample attributes, such as clinical phenotypes. Current statistical approaches typically map cells to clusters and then assess differences in cluster abundance. Here we present co-varying neighborhood analysis (CNA), an unbiased method to identify associated cell populations with greater flexibility than cluster-based approaches. CNA characterizes dominant axes of variation across samples by identifying groups of small regions in transcriptional space-termed neighborhoods-that co-vary in abundance across samples, suggesting shared function or regulation. CNA performs statistical testing for associations between any sample-level attribute and the abundances of these co-varying neighborhood groups. Simulations show that CNA enables more sensitive and accurate identification of disease-associated cell states than a cluster-based approach. When applied to published datasets, CNA captures a Notch activation signature in rheumatoid arthritis, identifies monocyte populations expanded in sepsis and identifies a novel T cell population associated with progression to active tuberculosis.
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15
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Li B, Zhang L, Zhu L, Cao Y, Dou Z, Yu Q. HDAC5 promotes intestinal sepsis via the Ghrelin/E2F1/NF-κB axis. FASEB J 2021; 35:e21368. [PMID: 34125448 DOI: 10.1096/fj.202001584r] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 12/20/2020] [Accepted: 12/28/2020] [Indexed: 01/24/2023]
Abstract
In the current study, we sought to determine the roles of histone deacetylase 5 (HDAC5) on the promotion of intestinal sepsis in a mouse model. Dual luciferase reporter gene assay was used to determine the binding relationship between HDAC5 and Ghrelin. Cecal ligation and puncture (CLP) was used as an animal model of intestinal sepsis. The roles of HDAC5 on intestinal sepsis were determined by HDAC5 knockdown, overexpression, and inhibitor (LMK-235) in vivo. Mice intestinal permeability and intestinal epithelial damage were evaluated, and HE staining was used to evaluate the intestinal mucosal injury index. Lipopolysaccharide (LPS)-treated intestinal-derived macrophages served as a cell model of sepsis, followed by the loss-of-function and gain-of-function assays. ELISA was used to determine the levels of inflammatory factors, and TUNEL staining was used to detect intestinal cell apoptosis. HDAC5 was upregulated in the intestine of sepsis patients. This increased HDAC5 expression was positively correlated with the expression of inflammatory factors TNF-α, IL-1β, IL-6, and HMGB1, as well as the intestinal dysfunction-related factors IFABP. In sepsis mice, the expression of inflammatory factors was reduced by HDAC5 knockdown. HDAC5 knockdown also improved survival, morphology of intestinal tissue, intestinal permeability, and epithelial damage. Ghrelin was bound and inhibited by HDAC5, but E2F1 expression was increased by Ghrelin overexpression, leading to inhibition of the NF-κB pathway. Ghrelin and E2F1 expression were increased by the treatment with HDAC5 inhibitor LMK-235, which inhibited the NF-κB pathway to improve intestinal dysfunction in the sepsis model. In conclusion, HDAC5 inhibits Ghrelin to reduce E2F1 and thus activate the NF-κB pathway, thereby promoting intestinal sepsis.
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Affiliation(s)
- Bin Li
- Department of Critical Medicine, the First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Lei Zhang
- Department of Critical Medicine, the First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Lei Zhu
- Department of Critical Medicine, the First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Yongqiang Cao
- Department of Critical Medicine, the First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Zhimin Dou
- Department of Critical Medicine, the First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Qin Yu
- Department of Respiratory, the First Hospital of Lanzhou University (the First School of Clinical Medicine), Lanzhou, P.R. China
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16
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Falcão-Holanda RB, Brunialti MKC, Jasiulionis MG, Salomão R. Epigenetic Regulation in Sepsis, Role in Pathophysiology and Therapeutic Perspective. Front Med (Lausanne) 2021; 8:685333. [PMID: 34322502 PMCID: PMC8312749 DOI: 10.3389/fmed.2021.685333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/09/2021] [Indexed: 12/12/2022] Open
Abstract
Sepsis is characterized by an initial hyperinflammatory response, with intense cell activation and cytokine storm. In parallel, a prolonged compensatory anti-inflammatory response, known as immunological tolerance, can lead to immunosuppression. Clinically, this condition is associated with multiple organ failure, resulting in the patient's death. The mechanisms underlying the pathophysiology of sepsis are not yet fully understood, but evidence is strong showing that epigenetic changes, including DNA methylation and post-translational modifications of histones, modulate the inflammatory response of sepsis. During the onset of infection, host cells undergo epigenetic changes that favor pathogen survival. Besides, epigenetic changes in essential genes also orchestrate the patient's inflammatory response. In this review, we gathered studies on sepsis and epigenetics to show the central role of epigenetic mechanisms in various aspects of the pathogenesis of sepsis and the potential of epigenetic interventions for its treatment.
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Affiliation(s)
- Renata Brito Falcão-Holanda
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Milena Karina Colo Brunialti
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Miriam Galvonas Jasiulionis
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Reinaldo Salomão
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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17
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Kühne M, Kretzer C, Lindemann H, Godmann M, Heinze T, Werz O, Heinzel T. Biocompatible valproic acid-coupled nanoparticles attenuate lipopolysaccharide-induced inflammation. Int J Pharm 2021; 601:120567. [PMID: 33812975 DOI: 10.1016/j.ijpharm.2021.120567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 11/27/2022]
Abstract
Inflammatory diseases like sepsis are associated with dysregulated gene expression, often caused by an imbalance of epigenetic regulators, such as histone acetyltransferases (HATs) and histone deacetylases (HDACs), and consequently, altered epigenetic chromatin signatures or aberrant posttranslational modifications of signalling proteins and transcription factors. Thus, HDAC inhibitors (HDACi) are a promising class of anti-inflammatory drugs. Recently, an efficient drug delivery system carrying the class I/IIa selective HDACi valproic acid (VPA) was developed to circumvent common disadvantages of free drug administration, e.g. short half-life and side effects. The cellulose-based sulphated VPA-coupled (CV-S) nanoparticles (NPs) are rapidly taken up by cells, do not cause any toxic effects and are fully biocompatible. Importantly, VPA is intracellularly cleaved from the NPs and HDACi activity could be proven. Here, we demonstrate that CV-S NPs exhibit overall anti-inflammatory effects in primary human macrophages and are able to attenuate the lipopolysaccharide-induced inflammatory response. CV-S NPs show superior potential to free VPA to suppress the TLR-MyD88-NF-κB signalling axis, leading to decreased TNF-α expression and secretion.
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Affiliation(s)
- Marie Kühne
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University of Jena, Hans-Knöll-Straße 2, 07745 Jena, Germany
| | - Christian Kretzer
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Henry Lindemann
- Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraße 10, 07743 Jena, Germany
| | - Maren Godmann
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University of Jena, Hans-Knöll-Straße 2, 07745 Jena, Germany
| | - Thomas Heinze
- Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraße 10, 07743 Jena, Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, 07743 Jena, Germany
| | - Thorsten Heinzel
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine, Friedrich Schiller University of Jena, Hans-Knöll-Straße 2, 07745 Jena, Germany.
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18
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Ullmann T, Luckhardt S, Wolf M, Parnham MJ, Resch E. High-Throughput Screening for CEBPD-Modulating Compounds in THP-1-Derived Reporter Macrophages Identifies Anti-Inflammatory HDAC and BET Inhibitors. Int J Mol Sci 2021; 22:ijms22063022. [PMID: 33809617 PMCID: PMC8002291 DOI: 10.3390/ijms22063022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/07/2021] [Accepted: 03/11/2021] [Indexed: 12/25/2022] Open
Abstract
This study aimed to identify alternative anti-inflammatory compounds that modulate the activity of a relevant transcription factor, CCAAT/enhancer binding protein delta (C/EBPδ). C/EBPδ is a master regulator of inflammatory responses in macrophages (Mϕ) and is mainly regulated at the level of CEBPD gene transcription initiation. To screen for CEBPD-modulating compounds, we generated a THP-1-derived reporter cell line stably expressing secreted alkaline phosphatase (SEAP) under control of the defined CEBPD promoter (CEBPD::SEAP). A high-throughput screening of LOPAC®1280 and ENZO®774 libraries on LPS- and IFN-γ-activated THP-1 reporter Mϕ identified four epigenetically active hits: two bromodomain and extraterminal domain (BET) inhibitors, I-BET151 and Ro 11-1464, as well as two histone deacetylase (HDAC) inhibitors, SAHA and TSA. All four hits markedly and reproducibly upregulated SEAP secretion and CEBPD::SEAP mRNA expression, confirming screening assay reliability. Whereas BET inhibitors also upregulated the mRNA expression of the endogenous CEBPD, HDAC inhibitors completely abolished it. All hits displayed anti-inflammatory activity through the suppression of IL-6 and CCL2 gene expression. However, I-BET151 and HDAC inhibitors simultaneously upregulated the mRNA expression of pro-inflammatory IL-1ß. The modulation of CEBPD gene expression shown in this study contributes to our understanding of inflammatory responses in Mϕ and may offer an approach to therapy for inflammation-driven disorders.
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Affiliation(s)
- Tatjana Ullmann
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (S.L.); (M.J.P.); (E.R.)
- Correspondence:
| | - Sonja Luckhardt
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (S.L.); (M.J.P.); (E.R.)
| | - Markus Wolf
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Schnackenburgallee 114, 22525 Hamburg, Germany;
| | - Michael J. Parnham
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (S.L.); (M.J.P.); (E.R.)
- EpiEndo Pharmaceuticals ehf, Eiðistorg 13-15, 170 Seltjarnarnes, Iceland
| | - Eduard Resch
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany; (S.L.); (M.J.P.); (E.R.)
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19
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Zhao D, Li Z, Liu X, Liu N, Bao X, Sun H, Meng Q, Ren H, Bai J, Zhou X, Tang L. Lymphocyte expression of EZH2 is associated with mortality and secondary infectious complications in sepsis. Int Immunopharmacol 2020; 89:107042. [PMID: 33068867 DOI: 10.1016/j.intimp.2020.107042] [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: 06/27/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 12/25/2022]
Abstract
Recent studies have shown that epigenetic factors may affect immune responses. We previously reported that histone methyltransferase enhancer of zeste homolog 2 (EZH2) was involved in the innate inflammatory responses both in animal model of sepsis and in septic patients. In this study, we prospectively evaluated EZH2 expression kinetics in peripheral CD4+ and CD8+ T cells and HLA-DR expression in CD14+ cells from 48 patients with sepsis and 48 healthy controls. Results showed higher level of EZH2 in CD4+ T cells and CD8+ T cells in sepsis patients than in controls. Meanwhile, EZH2 expression was correlated with CD27 status on T cells. Mean fluorescence intensity (MFI) of EZH2 in CD8+ T cells on day 1 independently predicted death in septic patients. Also, the combination of CD8+ T cell EZH2 expression with APACHEII and SOFA score could enhance the prognostic predictive ability. Moreover, multivariate logistic regression analysis showed that increased expression (proportion and MFI) of EZH2 in CD4+ and CD8+ lymphocytes on day 3 were independently associated with nosocomial infection in septic patients. Additionally, spearman correlation analysis indicated that the levels of EZH2 in CD4+ T cells and CD8+ T cells correlated to CD14+ cells-expressing HLA-DR in patients with sepsis at each time point. Overall, these findings suggest that EZH2 in CD4+ T cells or/and CD8+ T cells may be a novel biomarker for predicting adverse outcomes (mortality and secondary infectious complications) in patients with sepsis.
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Affiliation(s)
- Dongyang Zhao
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Zhe Li
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China; Medical School/Tongji University, Shanghai 200120, China
| | - Xiandong Liu
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Xiaowei Bao
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Hong Sun
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Qinshu Meng
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University, Shanghai 200120, China
| | - Huijuan Ren
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Jianwen Bai
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China
| | - Xiaohui Zhou
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University, Shanghai 200120, China.
| | - Lunxian Tang
- Department of Internal Emergency Medicine and Critical Care, Shanghai East Hospital, Tong Ji University, Shanghai 200120, China.
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20
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Chen J, Liu Q, Zeng L, Huang X. Protein Acetylation/Deacetylation: A Potential Strategy for Fungal Infection Control. Front Microbiol 2020; 11:574736. [PMID: 33133044 PMCID: PMC7579399 DOI: 10.3389/fmicb.2020.574736] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022] Open
Abstract
Protein acetylation is a universal post-translational modification that fine-tunes the major cellular processes of many life forms. Although the mechanisms regulating protein acetylation have not been fully elucidated, this modification is finely tuned by both enzymatic and non-enzymatic mechanisms. Protein deacetylation is the reverse process of acetylation and is mediated by deacetylases. Together, protein acetylation and deacetylation constitute a reversible regulatory protein acetylation network. The recent application of mass spectrometry-based proteomics has led to accumulating evidence indicating that reversible protein acetylation may be related to fungal virulence because a substantial amount of virulence factors are acetylated. Additionally, the relationship between protein acetylation/deacetylation and fungal drug resistance has also been proven and the potential of deacetylase inhibitors as an anti-infective treatment has attracted attention. This review aimed to summarize the research progress in understanding fungal protein acetylation/deacetylation and discuss the mechanism of its mediation in fungal virulence, providing novel targets for the treatment of fungal infection.
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Affiliation(s)
- Junzhu Chen
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Qiong Liu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Lingbing Zeng
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaotian Huang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
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21
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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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22
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Zhang W, Guan Y, Bayliss G, Zhuang S. Class IIa HDAC inhibitor TMP195 alleviates lipopolysaccharide-induced acute kidney injury. Am J Physiol Renal Physiol 2020; 319:F1015-F1026. [PMID: 33017186 DOI: 10.1152/ajprenal.00405.2020] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Sepsis-associated acute kidney injury (SA-AKI) is associated with high mortality rates, but clinicians lack effective treatments except supportive care or renal replacement therapies. Recently, histone deacetylase (HDAC) inhibitors have been recognized as potential treatments for acute kidney injury and sepsis in animal models; however, the adverse effect generated by the use of pan inhibitors of HDACs may limit their application in people. In the present study, we explored the possible renoprotective effect of a selective class IIa HDAC inhibitor, TMP195, in a murine model of SA-AKI induced by lipopolysaccharide (LPS). Administration of TMP195 significantly reduced increased serum creatinine and blood urea nitrogen levels and renal damage induced by LPS; this was coincident with reduced expression of HDAC4, a major isoform of class IIa HDACs, and elevated histone H3 acetylation. TMP195 treatment following LPS exposure also reduced renal tubular cell apoptosis and attenuated renal expression of neutrophil gelatinase-associated lipocalin and kidney injury molecule-1, two biomarkers of tubular injury. Moreover, LPS exposure resulted in increased expression of BAX and cleaved caspase-3 and decreased expression of Bcl-2 and bone morphogenetic protein-7 in vivo and in vitro; TMP195 treatment reversed these responses. Finally, TMP195 inhibited LPS-induced upregulation of multiple proinflammatory cytokines/chemokines, including intercellular adhesion molecule-1, monocyte chemoattractant protein-1, tumor necrosis factor-α, and interleukin-1β, and accumulation of inflammatory cells in the injured kidney. Collectively, these data indicate that TMP195 has a powerful renoprotective effect in SA-AKI by mitigating renal tubular cell apoptosis and inflammation and suggest that targeting class IIa HDACs might be a novel therapeutic strategy for the treatment of SA-AKI that avoids the unintended adverse effects of a pan-HDAC inhibitor.
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Affiliation(s)
- Wei Zhang
- Department of Medicine, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island.,Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yinjie Guan
- Department of Medicine, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - George Bayliss
- Department of Medicine, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island.,Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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23
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Zhou W, Yang J, Saren G, Zhao H, Cao K, Fu S, Pan X, Zhang H, Wang A, Chen X. HDAC6-specific inhibitor suppresses Th17 cell function via the HIF-1α pathway in acute lung allograft rejection in mice. Am J Cancer Res 2020; 10:6790-6805. [PMID: 32550904 PMCID: PMC7295069 DOI: 10.7150/thno.44961] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Previous animal experiments and clinical studies indicated the critical role of Th17 cells in lung transplant rejection. Therefore, the downregulation of Th17 cell function in lung transplant recipients is of great interest. Methods: We established an orthotopic mouse lung transplantation model to investigate the role of histone deacetylase 6-specific inhibitor (HDAC6i), Tubastatin A, in the suppression of Th17 cells and attenuation of pathologic lesions in lung allografts. Moreover, mechanism studies were conducted in vitro. Results: Tubastatin A downregulated Th17 cell function in acute lung allograft rejection, prolonged the survival of lung allografts, and attenuated acute rejection by suppressing Th17 cell accumulation. Consistently, exogenous IL-17A supplementation eliminated the protective effect of Tubastatin A. Also, hypoxia-inducible factor-1α (HIF-1α) was overexpressed in a lung transplantation mouse model. HIF-1α deficiency suppressed Th17 cell function and attenuated lung allograft rejection by downregulating retinoic acid-related orphan receptor γt (ROR γt) expression. We showed that HDAC6i downregulated HIF-1α transcriptional activity under Th17-skewing conditions in vitro and promoted HIF-1α protein degradation in lung allografts. HDAC6i did not affect the suppression of HIF-1α-/- naïve CD4+ T cell differentiation into Th17 cell and attenuation of acute lung allograft rejection in HIF-1α-deficient recipient mice. Conclusion: These findings suggest that Tubastatin A downregulates Th17 cell function and suppresses acute lung allograft rejection, at least partially, via the HIF-1α/ RORγt pathway.
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24
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Beltrán-García J, Osca-Verdegal R, Romá-Mateo C, Carbonell N, Ferreres J, Rodríguez M, Mulet S, García-López E, Pallardó FV, García-Giménez JL. Epigenetic biomarkers for human sepsis and septic shock: insights from immunosuppression. Epigenomics 2020; 12:617-646. [PMID: 32396480 DOI: 10.2217/epi-2019-0329] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Sepsis is a life-threatening condition that occurs when the body responds to an infection damaging its own tissues. Sepsis survivors sometimes suffer from immunosuppression increasing the risk of death. To our best knowledge, there is no 'gold standard' for defining immunosuppression except for a composite clinical end point. As the immune system is exposed to epigenetic changes during and after sepsis, research that focuses on identifying new biomarkers to detect septic patients with immunoparalysis could offer new epigenetic-based strategies to predict short- and long-term pathological events related to this life-threatening state. This review describes the most relevant epigenetic mechanisms underlying alterations in the innate and adaptive immune responses described in sepsis and septic shock, and their consequences for immunosuppression states, providing several candidates to become epigenetic biomarkers that could improve sepsis management and help predict immunosuppression in postseptic patients.
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Affiliation(s)
- Jesús Beltrán-García
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia 46010, Spain.,Department of Physiology, Faculty of Medicine & Dentistry, University of Valencia, Valencia 46010, Spain.,INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,EpiDisease S.L. (Spin-Off CIBER-ISCIII), Parc Científic de la Universitat de València, Paterna 46980, Valencia, Spain
| | - Rebeca Osca-Verdegal
- Department of Physiology, Faculty of Medicine & Dentistry, University of Valencia, Valencia 46010, Spain
| | - Carlos Romá-Mateo
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia 46010, Spain.,Department of Physiology, Faculty of Medicine & Dentistry, University of Valencia, Valencia 46010, Spain.,INCLIVA Biomedical Research Institute, Valencia 46010, Spain
| | - Nieves Carbonell
- INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,Intensive Care Unit, Clinical University Hospital of Valencia, Valencia 46010, Spain
| | - José Ferreres
- INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,Intensive Care Unit, Clinical University Hospital of Valencia, Valencia 46010, Spain
| | - María Rodríguez
- INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,Intensive Care Unit, Clinical University Hospital of Valencia, Valencia 46010, Spain
| | - Sandra Mulet
- INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,Intensive Care Unit, Clinical University Hospital of Valencia, Valencia 46010, Spain
| | - Eva García-López
- EpiDisease S.L. (Spin-Off CIBER-ISCIII), Parc Científic de la Universitat de València, Paterna 46980, Valencia, Spain
| | - Federico V Pallardó
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia 46010, Spain.,Department of Physiology, Faculty of Medicine & Dentistry, University of Valencia, Valencia 46010, Spain.,INCLIVA Biomedical Research Institute, Valencia 46010, Spain
| | - José Luis García-Giménez
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia 46010, Spain.,Department of Physiology, Faculty of Medicine & Dentistry, University of Valencia, Valencia 46010, Spain.,INCLIVA Biomedical Research Institute, Valencia 46010, Spain.,EpiDisease S.L. (Spin-Off CIBER-ISCIII), Parc Científic de la Universitat de València, Paterna 46980, Valencia, Spain
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25
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Kim SM, DeFazio JR, Hyoju SK, Sangani K, Keskey R, Krezalek MA, Khodarev NN, Sangwan N, Christley S, Harris KG, Malik A, Zaborin A, Bouziat R, Ranoa DR, Wiegerinck M, Ernest JD, Shakhsheer BA, Fleming ID, Weichselbaum RR, Antonopoulos DA, Gilbert JA, Barreiro LB, Zaborina O, Jabri B, Alverdy JC. Fecal microbiota transplant rescues mice from human pathogen mediated sepsis by restoring systemic immunity. Nat Commun 2020; 11:2354. [PMID: 32393794 PMCID: PMC7214422 DOI: 10.1038/s41467-020-15545-w] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 03/11/2020] [Indexed: 12/13/2022] Open
Abstract
Death due to sepsis remains a persistent threat to critically ill patients confined to the intensive care unit and is characterized by colonization with multi-drug-resistant healthcare-associated pathogens. Here we report that sepsis in mice caused by a defined four-member pathogen community isolated from a patient with lethal sepsis is associated with the systemic suppression of key elements of the host transcriptome required for pathogen clearance and decreased butyrate expression. More specifically, these pathogens directly suppress interferon regulatory factor 3. Fecal microbiota transplant (FMT) reverses the course of otherwise lethal sepsis by enhancing pathogen clearance via the restoration of host immunity in an interferon regulatory factor 3-dependent manner. This protective effect is linked to the expansion of butyrate-producing Bacteroidetes. Taken together these results suggest that fecal microbiota transplantation may be a treatment option in sepsis associated with immunosuppression. Sepsis due to multidrug resistant pathogens is the most common cause of death in intensive care units. Here, the authors report that fecal microbiota transplant (FMT) can rescue mice from lethal sepsis of pathogens isolated from stool of a critically ill patient and show that FMT reverses the immunosuppressive effect induced by the pathogen community.
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Affiliation(s)
- Sangman M Kim
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA.,Department of Biology, University of San Francisco, San Francisco, CA, USA
| | - Jennifer R DeFazio
- Department of Surgery, University of Chicago, Chicago, IL, USA.,Department of Surgery, Columbia University, New York, NY, USA
| | - Sanjiv K Hyoju
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Kishan Sangani
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Robert Keskey
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Surgery, University of Chicago, Chicago, IL, USA
| | | | - Nikolai N Khodarev
- Department of Radiation and Cellular Oncology and The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Naseer Sangwan
- Department of Surgery, University of Chicago, Chicago, IL, USA.,Argonne National Laboratory, Argonne, IL, USA
| | - Scott Christley
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | | | - Ankit Malik
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA
| | | | - Romain Bouziat
- Committee on Immunology, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Diana R Ranoa
- Department of Radiation and Cellular Oncology and The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Mara Wiegerinck
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Jordan D Ernest
- Department of Medicine, University of Chicago, Chicago, IL, USA
| | | | - Irma D Fleming
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Ralph R Weichselbaum
- Department of Radiation and Cellular Oncology and The Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Dionysios A Antonopoulos
- Department of Medicine, University of Chicago, Chicago, IL, USA.,Argonne National Laboratory, Argonne, IL, USA
| | - Jack A Gilbert
- Department of Surgery, University of Chicago, Chicago, IL, USA.,Argonne National Laboratory, Argonne, IL, USA
| | - Luis B Barreiro
- Department of Medicine, University of Chicago, Chicago, IL, USA.,Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, QC, Canada.,Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Olga Zaborina
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Bana Jabri
- Committee on Immunology, University of Chicago, Chicago, IL, USA. .,Department of Medicine, University of Chicago, Chicago, IL, USA. .,Department of Pathology, University of Chicago, Chicago, IL, USA. .,Department of Pediatrics, Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, IL, USA.
| | - John C Alverdy
- Department of Surgery, University of Chicago, Chicago, IL, USA.
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26
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Florentino D, Della Giustina A, de Souza Goldim MP, Danielski LG, de Oliveira Junior AN, Joaquim L, Bonfante S, Biehl E, da Rosa N, Fernandes D, Gava FF, Michels M, Fortunato JJ, Réus GZ, S Valvassori S, Quevedo J, Dal-Pizzol F, Barichello T, Petronilho F. Early life neuroimmune challenge protects the brain after sepsis in adult rats. Neurochem Int 2020; 135:104712. [DOI: 10.1016/j.neuint.2020.104712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 01/24/2020] [Accepted: 02/27/2020] [Indexed: 12/20/2022]
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27
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Wen X, Li S, Frank A, Chen X, Emlet D, Hukriede NA, Kellum JA. Time-dependent effects of histone deacetylase inhibition in sepsis-associated acute kidney injury. Intensive Care Med Exp 2020; 8:9. [PMID: 32034542 PMCID: PMC7007462 DOI: 10.1186/s40635-020-0297-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/29/2020] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND Sepsis, a dysregulated host response to infection with results in organ dysfunction, has been a major challenge to the development of effective therapeutics. Sepsis-associated acute kidney injury (S-AKI) results in a 3-5-fold increase in the risk of hospital mortality compared to sepsis alone. The development of therapies to reverse S-AKI could therefore significantly affect sepsis outcomes. However, the translation of therapies from preclinical studies into humans requires model systems that recapitulate clinical scenarios and the development of renal fibrosis indicative of the transition from acute to chronic kidney disease. RESULTS Here we characterized a murine model of S-AKI induced by abdominal sepsis developing into a chronic phenotype. We applied a small molecule histone deacetylase-8 inhibitor, UPHD186, and found that early treatment, beginning at 48 h post-sepsis, worsened renal outcome accompanied by decreasing mononuclear cell infiltration in the kidney, skewing cells into a pro-inflammatory phenotype, and increased pro-fibrotic gene expression, while delayed treatment, beginning at 96 h post-sepsis, after the acute inflammation in the kidney had subsided, resulted in improved survival and kidney histology presumably through promoting proliferation and inhibiting fibrosis. CONCLUSIONS These findings not only present a clinically relevant S-AKI model, but also introduce a timing dimension into S-AKI therapeutic interventions that delayed treatment with UPHD186 may enhance renal histologic repair. Our results provide novel insights into successful repair of kidney injury and sepsis therapy.
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Affiliation(s)
- Xiaoyan Wen
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
| | - Shengnan Li
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
| | - Alicia Frank
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
| | - Xiukai Chen
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
| | - David Emlet
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
| | - Neil A Hukriede
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 3347 Forbes Ave, Suite 220, Pittsburgh, PA, 15213, USA.
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28
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Gu C, Hou C, Zhang S. miR-425-5p improves inflammation and septic liver damage through negatively regulating the RIP1-mediated necroptosis. Inflamm Res 2020; 69:299-308. [PMID: 32002587 DOI: 10.1007/s00011-020-01321-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/12/2020] [Accepted: 01/14/2020] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE AND DESIGN Sepsis, a systemic inflammatory response syndrome, is still a common cause of death even the patients who are in the intensive care unit. Alleviating septic liver damage may be effective in improving sepsis. Necroptosis and miRNAs have been regarded as a potential target in sepsis. MATERIAL OR SUBJECTS The aim of this work is to explain the potential role of miR-425-5p in septic liver damage. LPS was intraperitoneal-injection to C57BL/6 mice for sepsis, and hepatocytes treated with septic serum in vitro. H&E staining for histological evaluation, luciferase reporter assay for target validation, and qRT-PCR, WB, and ELISA analysis for assessment of miR-425-5p, RIP1, inflammatory factors, and LDH levels. RESULTS Down-regulated miR-425-5p and up-regulated RIP1/RIP3 were in LPS-induced sepsis mice. Liver damage, RIP1-mediated necroptosis, IL-1β, and TNF-α were suppressed by miR-425-5p agomiR, but further aggravated by miR-425-5p antagomiR. Furthermore, we demonstrated miR-425-5p targeted the 3'UTR of RIP1 mRNA to inhibit RIP1 expression and activated RIP1 reversed miR-425-5p-induced suppression of necroptosis and inflammation in septic hepatocytes. CONCLUSIONS The data suggest miR-425-5p negatively controls the RIP1-mediated necroptotic signaling cascades and inflammation, and sepsis-related liver damage. miR-425-5p/RIP1 axis is a potential therapeutic strategy for sepsis-related liver damage through necroptosis and inflammation.
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Affiliation(s)
- Changwei Gu
- Department of Emergency, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China
| | - Chongzhi Hou
- Department of General Surgery, Xi'an Children's Hospital, Xi'an, 710002, Shaanxi, China
| | - Sheng Zhang
- Department of General Surgery, Xi'an Children's Hospital, Xi'an, 710002, Shaanxi, China.
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29
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Hamam HJ, Palaniyar N. Post-Translational Modifications in NETosis and NETs-Mediated Diseases. Biomolecules 2019; 9:biom9080369. [PMID: 31416265 PMCID: PMC6723044 DOI: 10.3390/biom9080369] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 12/19/2022] Open
Abstract
Neutrophils undergo a unique form of cell death that generates neutrophil extracellular traps (NETs) that may help to neutralize invading pathogens and restore homeostasis. However, uncontrolled NET formation (NETosis) can result in numerous diseases that adversely affect health. Recent studies further elucidate the mechanistic details of the different forms of NETosis and their common end structure, as NETs were constantly found to contain DNA, modified histones and cytotoxic enzymes. In fact, emerging evidence reveal that the post translational modifications (PTMs) of histones in neutrophils have a critical role in regulating neutrophil death. Histone citrullination is shown to promote a rapid form of NET formation independent of NADPH oxidase (NOX), which relies on calcium influx. Interestingly, few studies suggest an association between histone citrullination and other types of PTMs to control cell survival and death, such as histone methylation. Even more exciting is the finding that histone acetylation has a biphasic effect upon NETosis, where histone deacetylase (HDAC) inhibitors promote baseline, NOX-dependent and -independent NETosis. However, increasing levels of histone acetylation suppresses NETosis, and to switch neutrophil death to apoptosis. Interestingly, in the presence of NETosis-promoting stimuli, high levels of HDACis limit both NETosis and apoptosis, and promote neutrophil survival. Recent studies also reveal the importance of the PTMs of neutrophils in influencing numerous pathologies. Histone modifications in NETs can act as a double-edged sword, as they are capable of altering multiple types of neutrophil death, and influencing numerous NET-mediated diseases, such as acute lung injury (ALI), thrombosis, sepsis, systemic lupus erythematosus, and cancer progression. A clear understanding of the role of different PTMs in neutrophils would be important for an understanding of the molecular mechanisms of NETosis, and to appropriately treat NETs-mediated diseases.
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Affiliation(s)
- Hussein J Hamam
- Program in Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Nades Palaniyar
- Program in Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada.
- Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada.
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30
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Zhang Y, Tao H, Huang SY. Dynamics and Mechanisms in the Recruitment and Transference of Histone Chaperone CIA/ASF1. Int J Mol Sci 2019; 20:ijms20133325. [PMID: 31284555 PMCID: PMC6651421 DOI: 10.3390/ijms20133325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/21/2019] [Accepted: 06/28/2019] [Indexed: 12/14/2022] Open
Abstract
The recruitment and transference of proteins through protein-protein interactions is a general process involved in various biological functions in cells. Despite the importance of this general process, the dynamic mechanism of how proteins are recruited and transferred from one interacting partner to another remains unclear. In this study, we investigated the dynamic mechanisms of recruitment and translocation of histone chaperone CIA/ASF1 for nucleosome disassembly by exploring the conformational space and the free energy profile of unbound DBD(CCG1) and CIA/ASF1-bound DBD(CCG1) systems through extensive molecular dynamics simulations. It was found that there exists three metastable conformational states for DBD(CCG1), an unbound closed state, a CIA/ASF1-bound half-open state, and an open state. The free energy landscape shows that the closed state and the half-open state are separated by a high free energy barrier, while the half-open state and the open state are connected with a moderate free energy increase. The high free energy barrier between the closed and half-open states explains why DBD(CCG1) can recruit CIA/ASF1 and remain in the binding state during the transportation. In addition, the asymmetric binding of CIA/ASF1 on DBD(CCG1) allows DBD(CCG1) to adopt the open state by moving one of its two domains, such that the exposed domain of DBD(CCG1) is able to recognize the acetylated histone H4 tails. As such, CIA/ASF1 has a chance to translocate from DBD(CCG1) to histone, which is also facilitated by the moderate energy increase from the bound half-open state to the open state of DBD(CCG1). These findings suggest that the recruitment and transference of histone chaperone CIA/ASF1 is highly favored by its interaction with DBD(CCG1) via conformational selection and asymmetric binding, which may represent a general mechanism of similar biological processes.
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Affiliation(s)
- Yanjun Zhang
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Huanyu Tao
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Sheng-You Huang
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
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