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Xu S, Huang CH, Eyermann C, Georgakis GV, Turkman N. Design and radiosynthesis of class-IIa HDAC inhibitor with high molar activity via repositioning the 18F-radiolabel. Sci Rep 2024; 14:15100. [PMID: 38956204 PMCID: PMC11219833 DOI: 10.1038/s41598-024-65668-z] [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: 03/08/2024] [Accepted: 06/23/2024] [Indexed: 07/04/2024] Open
Abstract
The design and radiosynthesis of [18F]NT376, a high potency inhibitor of class-IIa histone deacetylases (HDAC) is reported. We utilized a three-step radiochemical approach that led to the radiosynthesis of [18F]NT376 in a good radiochemical yield, (17.0 ± 3%, decay corrected), high radiochemical purity (> 97%) and relatively high molar activity of 185.0 GBq/µmol (> 5.0 Ci/µmol). The repositioning of the 18F-radiolabel into a phenyl ring (18F-Fluoro-aryl) of the class-IIa HDAC inhibitor avoided the shortcomings of the direct radiolabeling of the 5-trifluoromethyl-1,2,4-oxadiazole moiety that was reported by us previously and was associated with low molar activity (0.74-1.51 GBq/µmol, 20-41 mCi/µmol). This radiochemical approach could find a wider application for radiolabeling similar molecules with good radiochemical yield and high molar activity.
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Affiliation(s)
- Sulan Xu
- Stony Brook Cancer Center, Stony Brook, Long Island, NY, 11794, USA
- Department of Radiology, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Chun-Han Huang
- Stony Brook Cancer Center, Stony Brook, Long Island, NY, 11794, USA
- Department of Radiology, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Christopher Eyermann
- Stony Brook Cancer Center, Stony Brook, Long Island, NY, 11794, USA
- Department of Surgery, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Georgios V Georgakis
- Stony Brook Cancer Center, Stony Brook, Long Island, NY, 11794, USA
- Department of Surgery, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Nashaat Turkman
- Stony Brook Cancer Center, Stony Brook, Long Island, NY, 11794, USA.
- Department of Radiology, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA.
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA.
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2
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Kang H, Park YK, Lee JY, Bae M. Roles of Histone Deacetylase 4 in the Inflammatory and Metabolic Processes. Diabetes Metab J 2024; 48:340-353. [PMID: 38514922 PMCID: PMC11140402 DOI: 10.4093/dmj.2023.0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 02/07/2024] [Indexed: 03/23/2024] Open
Abstract
Histone deacetylase 4 (HDAC4), a class IIa HDAC, has gained attention as a potential therapeutic target in treating inflammatory and metabolic processes based on its essential role in various biological pathways by deacetylating non-histone proteins, including transcription factors. The activity of HDAC4 is regulated at the transcriptional, post-transcriptional, and post-translational levels. The functions of HDAC4 are tissue-dependent in response to endogenous and exogenous factors and their substrates. In particular, the association of HDAC4 with non-histone targets, including transcription factors, such as myocyte enhancer factor 2, hypoxia-inducible factor, signal transducer and activator of transcription 1, and forkhead box proteins, play a crucial role in regulating inflammatory and metabolic processes. This review summarizes the regulatory modes of HDAC4 activity and its functions in inflammation, insulin signaling and glucose metabolism, and cardiac muscle development.
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Affiliation(s)
- Hyunju Kang
- Department of Food and Nutrition, Keimyung University, Daegu, Korea
| | - Young-Ki Park
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT, USA
| | - Ji-Young Lee
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT, USA
| | - Minkyung Bae
- Department of Food and Nutrition, Yonsei University, Seoul, Korea
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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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4
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Xu H, Zhang J, Jia H, Xing F, Cong H. Serum histone deacetylase 4 longitudinal change for estimating major adverse cardiovascular events in acute coronary syndrome patients receiving percutaneous coronary intervention. Ir J Med Sci 2023; 192:2689-2696. [PMID: 36849652 DOI: 10.1007/s11845-023-03326-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 02/22/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVE Histone deacetylase 4 (HDAC4) regulates lipid accumulation, inflammation, endothelial injury, and atherosclerosis to participate in the pathogenesis of cardiovascular diseases. This study aimed to explore the value of serum HDAC4 change before and after percutaneous coronary intervention (PCI) in predicting major adverse cardiovascular events (MACE) risk in acute coronary syndrome (ACS) patients. METHODS HDAC4 from serum was detected by enzyme-linked immunosorbent assay in 340 ACS patients at baseline, day (D)1, D3, and D7 after PCI, and from 30 healthy controls (HCs). MACE was recorded during follow-up. RESULTS HDAC4 was decreased in ACS patients versus HCs (P < 0.001). In ACS patients, HDAC4 was negatively related to total cholesterol (P = 0.025), low-density lipoprotein cholesterol (P = 0.007), C-reactive protein (P < 0.001), cardiac troponin I (P < 0.001), and hyperlipidemia history (P = 0.015). Additionally, HDAC4 was lowest in ST-elevation myocardial infarction (STEMI) patients, followed by non-STEMI patients, and highest in unstable angina patients (P = 0.010). After PCI, HDAC4 was decreased from baseline to D1, then increased until D7 (P < 0.001). Furthermore, HDAC4 at baseline (P = 0.002), D1 (P < 0.001), D3 (P < 0.001), and D7 (P < 0.001) were all reduced in patients who experienced MACE versus those who did not. Meanwhile, high HDAC4 at baseline (P = 0.036), D1 (P = 0.010), D3 (P = 0.012), and D7 (P = 0.012) estimated decreased accumulating MACE risk by Kaplan-Meier curve. Multivariate logistic analysis revealed that HDAC4 at D1 was independently linked to lower MACE risk (odds ratio = 0.957, P = 0.039). CONCLUSION Serum HDAC4 is decreased from baseline to D1, then elevated until D7, and its increased level correlates with lower MACE risk in ACS patients receiving PCI.
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Affiliation(s)
- Huichuan Xu
- Department of Cardiology, Clinical school of Thoracic, Tianjin Medical University, No. 261 Tai'erzhuang Road, Jinnan District, Tianjin, China
- Department of Cardiology, Xuchang People's Hospital, Xuchang, China
| | - Jing Zhang
- Department of Cardiology, Clinical school of Thoracic, Tianjin Medical University, No. 261 Tai'erzhuang Road, Jinnan District, Tianjin, China
| | - Hongdan Jia
- Department of Cardiology, Clinical school of Thoracic, Tianjin Medical University, No. 261 Tai'erzhuang Road, Jinnan District, Tianjin, China
| | - Fei Xing
- Department of Cardiology, Xuchang People's Hospital, Xuchang, China
| | - Hongliang Cong
- Department of Cardiology, Clinical school of Thoracic, Tianjin Medical University, No. 261 Tai'erzhuang Road, Jinnan District, Tianjin, China.
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Zhang L, Xia C, Yang Y, Sun F, Zhang Y, Wang H, Liu R, Yuan M. DNA methylation and histone post-translational modifications in atherosclerosis and a novel perspective for epigenetic therapy. Cell Commun Signal 2023; 21:344. [PMID: 38031118 PMCID: PMC10688481 DOI: 10.1186/s12964-023-01298-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/27/2023] [Indexed: 12/01/2023] Open
Abstract
Atherosclerosis, which is a vascular pathology characterized by inflammation and plaque build-up within arterial vessel walls, acts as the important cause of most cardiovascular diseases. Except for a lipid-depository and chronic inflammatory, increasing evidences propose that epigenetic modifications are increasingly associated with atherosclerosis and are of interest from both therapeutic and biomarker perspectives. The chronic progressive nature of atherosclerosis has highlighted atherosclerosis heterogeneity and the fact that specific cell types in the complex milieu of the plaque are, by far, not the only initiators and drivers of atherosclerosis. Instead, the ubiquitous effects of cell type are tightly controlled and directed by the epigenetic signature, which, in turn, is affected by many proatherogenic stimuli, including low-density lipoprotein, proinflammatory, and physical forces of blood circulation. In this review, we summarize the role of DNA methylation and histone post-translational modifications in atherosclerosis. The future research directions and potential therapy for the management of atherosclerosis are also discussed. Video Abstract.
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Affiliation(s)
- Liang Zhang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Chenhai Xia
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Yongjun Yang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Fangfang Sun
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Yu Zhang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Huan Wang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Rui Liu
- Department of Rehabilitation, Tangdu Hospital, Air Force Military Medical University, No. 1 Xinsi Road, Xi'an 710000, China.
| | - Ming Yuan
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China.
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Jiang H, Sun Z, Zhu X, Li F, Chen Q. Essential genes Ptgs2, Tlr4, and Ccr2 regulate neuro-inflammation during the acute phase of cerebral ischemic in mice. Sci Rep 2023; 13:13021. [PMID: 37563282 PMCID: PMC10415315 DOI: 10.1038/s41598-023-40255-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023] Open
Abstract
Ischemic stroke (IS) is associated with changes in gene expression patterns in the ischemic penumbra and extensive neurovascular inflammation. However, the key molecules related to the inflammatory response in the acute phase of IS remain unclear. To address this knowledge gap, conducted a study using Gene Set Enrichment Analysis (GSEA) on two gene expression profiles, GSE58720 and GSE202659, downloaded from the GEO database. We screened differentially expressed genes (DEGs) using GEO2R and analyzed 170 differentially expressed intersection genes for Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment and Gene Ontology (GO) analysis. We also used Metascape, DAVID, STRING, Cytoscape, and TargetScan to identify candidate miRNAs and genes. The targeted genes and miRNA molecule were clarified using the mice middle cerebral artery occlusion-reperfusion (MCAO/R) model. Our findings revealed that 170 genes were correlated with cytokine production and inflammatory cell activation, as determined by GO and KEGG analyses. Cluster analysis identified 11 hub genes highly associated with neuroinflammation: Ccl7, Tnf, Ccl4, Timp1, Ccl3, Ccr1, Sele, Ccr2, Tlr4, Ptgs2, and Il6. TargetScan results suggested that Ptgs2, Tlr4, and Ccr2 might be regulated by miR-202-3p. In the MCAO/R model, the level of miR-202-3p decreased, while the levels of Ptgs2, Tlr4, and Ccr2 increased compared to the sham group. Knockdown of miR-202-3p exacerbated ischemic reperfusion injury (IRI) through neuroinflammation both in vivo and in vitro. Our study also demonstrated that mRNA and protein levels of Ptgs2, Tlr4, and Ccr2 increased in the MCAO/R model with miR-202-3p knockdown. These findings suggest that differentially expressed genes, including Ptgs2, Tlr4, and Ccr2 may play crucial roles in the neuroinflammation of IS, and their expression may be negatively regulated by miR-202-3p. Our study provides new insights into the regulation of neuroinflammation in IS.
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Affiliation(s)
- Hongxiang Jiang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang Distict, Wuhan, 430060, Hubei Province, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Zhiqiang Sun
- Department of Neurosurgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang Distict, Wuhan, 430060, Hubei Province, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Xiwei Zhu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Fei Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang Distict, Wuhan, 430060, Hubei Province, China.
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang Distict, Wuhan, 430060, Hubei Province, China.
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Cheng L, Liu Z, Xia J. New insights into circRNA and its mechanisms in angiogenesis regulation in ischemic stroke: a biomarker and therapeutic target. Mol Biol Rep 2023; 50:829-840. [PMID: 36331748 DOI: 10.1007/s11033-022-07949-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/14/2022] [Indexed: 11/06/2022]
Abstract
Ischemic stroke accounts for about 71% of strokes worldwide. Due to limited recommended therapeutics for ischemic stroke, more attention is focused on angiogenesis in ischemic stroke. Not long after ischemic stroke, angiogenesis arises and is vital for the prognosis. Various pro-angiogenic, anti-angiogenic factors and their downstream pathways engage in angiogenesis regulation. CircRNAs are differentially expressed after ischemic stroke. Up to now, circRNAs have been found to exert many functions in regulating apoptosis, autophagy, proliferation, and differentiation of neurons and neural stem cells mainly as miRNAs sponges or proteins decoy. Thus, many circRNAs are considered promising biomarkers or therapeutic targets for ischemic stroke. Besides, circRNAs participate in the modulation of endothelial-mesenchymal transition and blood-brain barrier maintenance. Moreover, circRNAs play significant roles in endothelial dysfunction concerning inflammation responses, apoptosis, proliferation, and migration. They correlate with many angiogenesis-related signaling pathways and genes via the circRNA/miRNA/mRNA network. Novel insights into circRNAs significance in angiogenesis regulation in ischemic stroke could be provided for further researches on the clinical application of circRNAs in ischemic stroke.
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Affiliation(s)
- Liuyang Cheng
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, P.R. China
| | - Zeyu Liu
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, P.R. China
| | - Jian Xia
- Department of Neurology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, P.R. China.
- Clinical Research Center for Cerebrovascular Disease of Hunan Province, Central South University, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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Shen Z, Bei Y, Lin H, Wei T, Dai Y, Hu Y, Zhang C, Dai H. The role of class IIa histone deacetylases in regulating endothelial function. Front Physiol 2023; 14:1091794. [PMID: 36935751 PMCID: PMC10014714 DOI: 10.3389/fphys.2023.1091794] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Vascular endothelial cells (ECs) are monolayer cells located in the inner layer of the blood vessel. Endothelial function is crucial in maintaining local and systemic homeostasis and is precisely regulated by sophisticated signaling pathways and epigenetic regulation. Endothelial dysfunctions are the main factors for the pathophysiological process of cardiovascular and cerebrovascular diseases like atherosclerosis, hypertension, and stroke. In these pathologic processes, histone deacetylases (HDACs) involve in epigenetic regulation by removing acetyl groups from lysine residues of histones and regulating downstream gene expression. Among all HDACs, Class IIa HDACs (HDAC4, 5, 7, 9) contain only an N-terminal regulatory domain, exert limited HDAC activity, and present tissue-specific gene regulation. Here, we discuss and summarize the current understanding of this distinct subfamily of HDACs in endothelial cell functions (such as angiogenesis and immune response) with their molecular underpinnings. Furthermore, we also present new thoughts for further investigation of HDAC inhibitors as a potential treatment in several vascular diseases.
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Affiliation(s)
- Zexu Shen
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Bei
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Haoran Lin
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Taofeng Wei
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yunjian Dai
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yangmin Hu
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Chao Zhang
- Department of Pharmacy, The First People’s Hospital of Hangzhou Lin’an District, Hangzhou, China
| | - Haibin Dai
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Haibin Dai,
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Safaei Z, Thompson GL. Histone deacetylase 4 and 5 translocation elicited by microsecond pulsed electric field exposure is mediated by kinase activity. Front Bioeng Biotechnol 2022; 10:1047851. [PMID: 36466344 PMCID: PMC9713944 DOI: 10.3389/fbioe.2022.1047851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 11/04/2022] [Indexed: 10/17/2023] Open
Abstract
Electroporation-based technologies using microsecond pulsed electric field (µsPEF) exposures are established as laboratory and clinical tools that permeabilize cell membranes. We demonstrate a µsPEF bioeffect on nucleocytoplasmic import and export of enzymes that regulate genetic expression, histone deacetylases (HDAC) -4 and -5. Their μsPEF-induced nucleocytoplasmic transport depends on presence and absence of extracellular calcium ions (Ca2+) for both MCF7 and CHO-K1 cells. Exposure to 1, 10, 30 and 50 consecutive square wave pulses at 1 Hz and of 100 µs duration with 1.45 kV/cm magnitude leads to translocation of endogenous HDAC4 and HDAC5. We posit that by eliciting a rise in intracellular Ca2+ concentration, a signaling pathway involving kinases, such as Ca2+/CaM-dependent protein kinase II (CaMKII), is activated. This cascade causes nuclear export and import of HDAC4 and HDAC5. The potential of µsPEF exposures to control nucleocytoplasmic transport unlocks future opportunities in epigenetic modification.
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Affiliation(s)
| | - Gary L. Thompson
- Department of Chemical Engineering, Rowan University, Glassboro, NJ, United States
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10
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Novel late-stage radiosynthesis of 5-[18F]-trifluoromethyl-1,2,4-oxadiazole (TFMO) containing molecules for PET imaging. Sci Rep 2021; 11:10668. [PMID: 34021207 PMCID: PMC8139947 DOI: 10.1038/s41598-021-90069-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/05/2021] [Indexed: 12/26/2022] Open
Abstract
Small molecules that contain the (TFMO) moiety were reported to specifically inhibit the class-IIa histone deacetylases (HDACs), an important target in cancer and the disorders of the central nervous system (CNS). However, radiolabeling methods to incorporate the [18F]fluoride into the TFMO moiety are lacking. Herein, we report a novel late-stage incorporation of [18F]fluoride into the TFMO moiety in a single radiochemical step. In this approach the bromodifluoromethyl-1,2,4-oxadiazole was converted into [18F]TFMO via no-carrier-added bromine-[18F]fluoride exchange in a single step, thus producing the PET tracers with acceptable radiochemical yield (3–5%), high radiochemical purity (> 98%) and moderate molar activity of 0.33–0.49 GBq/umol (8.9–13.4 mCi/umol). We validated the utility of the novel radiochemical design by the radiosynthesis of [18F]TMP195, which is a known TFMO containing potent inhibitor of class-IIa HDACs.
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Khajehlandi M, Bolboli L, Siahkuhian M, Rami M, Tabandeh M, Khoramipour K, Suzuki K. Endurance Training Regulates Expression of Some Angiogenesis-Related Genes in Cardiac Tissue of Experimentally Induced Diabetic Rats. Biomolecules 2021; 11:biom11040498. [PMID: 33806202 PMCID: PMC8066303 DOI: 10.3390/biom11040498] [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: 02/17/2021] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 12/16/2022] Open
Abstract
Exercise can ameliorate cardiovascular dysfunctions in the diabetes condition, but its precise molecular mechanisms have not been entirely understood. The aim of the present study was to determine the impact of endurance training on expression of angiogenesis-related genes in cardiac tissue of diabetic rats. Thirty adults male Wistar rats were randomly divided into three groups (N = 10) including diabetic training (DT), sedentary diabetes (SD), and sedentary healthy (SH), in which diabetes was induced by a single dose of streptozotocin (50 mg/kg). Endurance training (ET) with moderate-intensity was performed on a motorized treadmill for six weeks. Training duration and treadmill speed were increased during five weeks, but they were kept constant at the final week, and slope was zero at all stages. Real-time polymerase chain reaction (RT-PCR) analysis was used to measure the expression of myocyte enhancer factor-2C (MEF2C), histone deacetylase-4 (HDAC4) and Calmodulin-dependent protein kinase II (CaMKII) in cardiac tissues of the rats. Our results demonstrated that six weeks of ET increased gene expression of MEF2C significantly (p < 0.05), and caused a significant reduction in HDAC4 and CaMKII gene expression in the DT rats compared to the SD rats (p < 0.05). We concluded that moderate-intensity ET could play a critical role in ameliorating cardiovascular dysfunction in a diabetes condition by regulating the expression of some angiogenesis-related genes in cardiac tissues.
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Affiliation(s)
- Mojdeh Khajehlandi
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 5619913131, Iran; (M.K.); (M.S.)
| | - Lotfali Bolboli
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 5619913131, Iran; (M.K.); (M.S.)
- Correspondence: (L.B.); (K.S.); Tel.: +98-91-4351-2590 (L.B.); +81-4-2947-6898 (K.S.)
| | - Marefat Siahkuhian
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 5619913131, Iran; (M.K.); (M.S.)
| | - Mohammad Rami
- Department of Sport Physiology, Faculty of Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran;
| | - Mohammadreza Tabandeh
- Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran;
| | - Kayvan Khoramipour
- Department of Physiology and Pharmacology, Afzalipour Medical Faculty, Physiology Research Center and Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman 7616913555, Iran;
| | - Katsuhiko Suzuki
- Faculty of Sport Sciences, Waseda University, Tokorozawa 359-1192, Saitama, Japan
- Correspondence: (L.B.); (K.S.); Tel.: +98-91-4351-2590 (L.B.); +81-4-2947-6898 (K.S.)
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Reddy LVK, Murugan D, Mullick M, Begum Moghal ET, Sen D. Recent Approaches for Angiogenesis in Search of Successful Tissue Engineering and Regeneration. Curr Stem Cell Res Ther 2020; 15:111-134. [PMID: 31682212 DOI: 10.2174/1574888x14666191104151928] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/28/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023]
Abstract
Angiogenesis plays a central role in human physiology from reproduction and fetal development to wound healing and tissue repair/regeneration. Clinically relevant therapies are needed for promoting angiogenesis in order to supply oxygen and nutrients after transplantation, thus relieving the symptoms of ischemia. Increase in angiogenesis can lead to the restoration of damaged tissues, thereby leading the way for successful tissue regeneration. Tissue regeneration is a broad field that has shown the convergence of various interdisciplinary fields, wherein living cells in conjugation with biomaterials have been tried and tested on to the human body. Although there is a prevalence of various approaches that hypothesize enhanced tissue regeneration via angiogenesis, none of them have been successful in gaining clinical relevance. Hence, the current review summarizes the recent cell-based and cell free (exosomes, extracellular vesicles, micro-RNAs) therapies, gene and biomaterial-based approaches that have been used for angiogenesis-mediated tissue regeneration and have been applied in treating disease models like ischemic heart, brain stroke, bone defects and corneal defects. This review also puts forward a concise report of the pre-clinical and clinical studies that have been performed so far; thereby presenting the credible impact of the development of biomaterials and their 3D concepts in the field of tissue engineering and regeneration, which would lead to the probable ways for heralding the successful future of angiogenesis-mediated approaches in the greater perspective of tissue engineering and regenerative medicine.
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Affiliation(s)
- Lekkala Vinod Kumar Reddy
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Durai Murugan
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Madhubanti Mullick
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Erfath Thanjeem Begum Moghal
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Dwaipayan Sen
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India.,University of Georgia, Athens, GA, United States
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Roles of Histone Acetylation Modifiers and Other Epigenetic Regulators in Vascular Calcification. Int J Mol Sci 2020; 21:ijms21093246. [PMID: 32375326 PMCID: PMC7247359 DOI: 10.3390/ijms21093246] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/28/2020] [Accepted: 05/01/2020] [Indexed: 02/07/2023] Open
Abstract
Vascular calcification (VC) is characterized by calcium deposition inside arteries and is closely associated with the morbidity and mortality of atherosclerosis, chronic kidney disease, diabetes, and other cardiovascular diseases (CVDs). VC is now widely known to be an active process occurring in vascular smooth muscle cells (VSMCs) involving multiple mechanisms and factors. These mechanisms share features with the process of bone formation, since the phenotype switching from the contractile to the osteochondrogenic phenotype also occurs in VSMCs during VC. In addition, VC can be regulated by epigenetic factors, including DNA methylation, histone modification, and noncoding RNAs. Although VC is commonly observed in patients with chronic kidney disease and CVD, specific drugs for VC have not been developed. Thus, discovering novel therapeutic targets may be necessary. In this review, we summarize the current experimental evidence regarding the role of epigenetic regulators including histone deacetylases and propose the therapeutic implication of these regulators in the treatment of VC.
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Zhang B, Dong Y, Liu M, Yang L, Zhao Z. miR-149-5p Inhibits Vascular Smooth Muscle Cells Proliferation, Invasion, and Migration by Targeting Histone Deacetylase 4 (HDAC4). Med Sci Monit 2019; 25:7581-7590. [PMID: 31595884 PMCID: PMC6796703 DOI: 10.12659/msm.916522] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Studies have demonstrated that microRNAs (miRNAs) have essential roles in biological functions of vascular smooth muscle cells (VSMCs). However, the function and related molecular mechanism of miR-149-5p in VSMCs remains unclear. MATERIAL AND METHODS We used MTT assay, Transwell assay, and wound-healing assay to measure the proliferation, invasion, and migration of VSMCs transfected with miR-149-5p mimics or inhibitors, respectively. Bioinformatics tools and luciferase assay were used to validate the relationship between miR-149-5p and histone deacetylase 4 (HDAC4). Rescue experiments were used to confirm the interaction of miR-149-5p and HDAC4 in regulating biological functions in VSMCs. RESULTS miR-149-5p was downregulated in PDGF-bb-induced VSMCs. It was also found that miR-149-5p overexpression suppressed proliferation, invasion, and migration of VSMCs, while miR-149-5p knockdown showed the opposite effects. Furthermore, HDAC4 was found to be a potential target of miR-149-5p, which rescued miR-149-5p-mediated proliferation, invasion, and migration in VSMCs. CONCLUSIONS We demonstrated that miR-149-5p can suppress biological functions of VSMCs by regulating HDAC4, which might provide a potent therapeutic target for VSMC growth-related diseases.
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Affiliation(s)
- Boya Zhang
- Department of Cardiology, Tianjin Nankai Hospital, Tianjin, China (mainland)
| | - Yang Dong
- Department of Cardiology, Tianjin Nankai Hospital, Tianjin, China (mainland)
| | - Ming Liu
- Department of Toxicology, Technical Center for Safety of Industrial Products, Tianjin Entry Exit Inspection and Quarantine Bureau, Dongli, Tianjin, China (mainland)
| | - Lei Yang
- Department of Toxicology, Technical Center for Safety of Industrial Products, Tianjin Entry Exit Inspection and Quarantine Bureau, Dongli, Tianjin, China (mainland)
| | - Zhuo Zhao
- Department of Toxicology, Technical Center for Safety of Industrial Products, Tianjin Entry Exit Inspection and Quarantine Bureau, Dongli, Tianjin, China (mainland)
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Zhang X, Fu C, Chen B, Xu Z, Zeng Z, He L, Lu Y, Chen Z, Liu X. Autophagy Induced by Oxygen-Glucose Deprivation Mediates the Injury to the Neurovascular Unit. Med Sci Monit 2019; 25:1373-1382. [PMID: 30787267 PMCID: PMC6394142 DOI: 10.12659/msm.915123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Autophagy is characterized by the degradation of cellular components in autophagosomes. It plays a significant role in cerebral ischemic injury and has a complex functional connection with apoptosis. The neurovascular unit (NVU) is a structural and functional unit of the nervous system presented as a therapeutic target of stroke. This study aimed to investigate the effect of autophagy induced by ischemic damage on NVUs. MATERIAL AND METHODS SH-SY5Y cells, C6 cells, and rat brain microvascular endothelial cells were cultured with oxygen-glucose deprivation (OGD) exposure for different time durations, and 3-methyladenine (3-MA) was added as an autophagy inhibitor. In all 3 cell lines, lactate dehydrogenase (LDH) release was measured. Furthermore, apoptosis was detected using Annexin V-fluorescein isothiocyanate/propidium iodide labeling and immunofluorescence staining. Autophagosomes were observed through AO/MDC (acridine orange/monodansycadaverine) double staining. LC3-II expression levels were evaluated by western blot analysis. RESULTS In the OGD groups of 3 cell lines, LDH leakage, and apoptotic rates were obviously increased. Remarkable increase in LC3-II expression was found in the OGD groups of SH-SY5Y cells and C6 cells. However, 3-MA decreased the LC3-II expression to varying degrees. CONCLUSIONS OGD could induce the over-activation of autophagy and augment the apoptotic activity in neurons and glial cells of NVUs.
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Affiliation(s)
- Xinyang Zhang
- Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Chen Fu
- Central Laboratory, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Baoxin Chen
- Department of Neurology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Zhenmin Xu
- Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Zixiu Zeng
- Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Lijuan He
- Department of Neurology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Yan Lu
- Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Science, Beijing, China (mainland)
| | - Zhigang Chen
- Department of Neurology, Dong Fang Hospital, Beijing University of Chinese Medicine, Beijing, China (mainland)
| | - Xuemei Liu
- Central Laboratory, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China (mainland)
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HDAC4 in ischemic stroke: mechanisms and therapeutic potential. Clin Epigenetics 2018; 10:117. [PMID: 30208931 PMCID: PMC6136233 DOI: 10.1186/s13148-018-0549-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/28/2018] [Indexed: 12/13/2022] Open
Abstract
Stroke is one of the leading causes of death and disability worldwide, and the majority of the cases are ischemic stroke. However, it still lacks effective treatment except for thrombolytic therapy in an extremely narrow time window. Increased evidence suggests that histone deacetylase 4 (HDAC4) was dysregulated in ischemic stroke, which plays a key role in the pathogenesis of ischemic stroke and post-stroke recovery by affecting neuronal death, angiogenesis, and neurogenesis. Therefore, we aim to review the dysregulation of HDAC4 in ischemic stroke and the role of dysregulated HDAC4 in the pathogenesis of ischemic stroke. Furthermore, the therapeutic potential of modulating HDAC4 in ischemic stroke is discussed.
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