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Liu T, Sun Y, Bai W. The Role of Epigenetics in the Chronic Sinusitis with Nasal Polyp. Curr Allergy Asthma Rep 2020; 21:1. [PMID: 33236242 DOI: 10.1007/s11882-020-00976-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Chronic rhinosinusitis with nasal polyps (CRSwNP) is a common and heterogeneous inflammatory disease. The underlying epigenetic mechanisms and treatment of CRSwNP are partially understood. Of the different epigenetic changes in CRSwNP, histone deacetylases (HDACs), methylation of DNA, and the levels of miRNA are widely studied. Here, we review the human studies of epigenetic mechanisms in CRSwNP. RECENT FINDINGS The promoters of COL18A1, PTGES, PLAT, and TSLP genes are hypermethylated in CRSwNP compared with those of controls, while the promoters of PGDS, ALOX5AP, LTB4R, IL-8, and FZD5 genes are hypomethylated in CRSwNP. Promoter hypermethylation suppresses the gene expression, while promoter hypomethylation increases the gene expression. Studies have shown the elevation in the levels of HDAC2, HDAC4, and H3K4me3 in CRSwNP. In CRSwNP patients, there is also an upregulation of certain miRNAs including miR-125b, miR-155, miR-19a, miR-142-3p, and miR-21 and downregulation of miR-4492. Epigenetics takes part in the immunology of CRSwNP and may give rise to endotypes of CRSwNP. Both HDAC2 and the miRNA including miR-18a, miR-124a, and miR-142-3p may take function in the regulation of glucocorticoid resistance. HDAC inhibitors and KDM2B have shown effectiveness in decreasing nasal polyp, and DNA methyltransferase (DNMT) or HDAC inhibitors may have a potential efficacy for the treatment of CRSwNP. Recent advances in the epigenetics of CRSwNP have led to the identification of several potential therapeutic targets for this disease. The use of epigenetics may provide novel and effective biomarkers and therapies for the treatment of nasal polyp.
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Affiliation(s)
- Tiancong Liu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Yang Sun
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Weiliang Bai
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
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Yang R, Wang H, Wen J, Ma K, Chen D, Chen Z, Huang C. Regulation of microglial process elongation, a featured characteristic of microglial plasticity. Pharmacol Res 2018; 139:286-297. [PMID: 30476531 DOI: 10.1016/j.phrs.2018.11.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/08/2018] [Accepted: 11/20/2018] [Indexed: 12/16/2022]
Abstract
Microglia, a type of glia within the brain characterized by a ramified morphology, are essential for removing neuronal debris and restricting the expansion of a lesion site. Upon moderate activation, they undergo a transformation in morphology inducing beneficial responses. However, upon strong stimulation, they mediate neuronal damage via production of pro-inflammatory cytokines. The inhibition of this cascade is considered an effective strategy for neuroinflammation-associated disorder therapy. During this pathological activation microglia also undergo a shortening of process length which contributes to the pathogenesis of such disorders. Thus, microglial plasticity should be considered to have two components: one is the production of inflammatory mediators, and the other is the dynamic changes in their processes. The former role has been well-documented in previous studies, while the latter one remains largely unknown. Recently, we and others have reported that the elongation of microglial process is associated with the transformation of microglia from a pro-inflammatory to an anti-inflammatory state, suggesting that the shortening of process length would make the microglia lose their ability to restrict pathological injury, while the elongation of microglial process would help attenuate neuroinflammation. Compared with the traditional anti-neuroinflammatory strategy, stimulating elongation of microglial process not only reduces the production of pro-inflammatory cytokines, but restores the ability of microglia to scan their surrounding environments, thus rendering their homeostasis regulation more effective. In this review, we provide a discussion of the factors that regulate microglial process elongation in vitro and in vivo, aiming to further drive the understanding of microglial process plasticity.
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Affiliation(s)
- Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, #20 Xisi Road, Nantong 226001, Jiangsu, China.
| | - Hui Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China; Department of Neuroscience & Cell Biology, Rutgers-Robert Wood Johnson Medical School, 675 Hoes lane, Piscataway, 08854, NJ, United States
| | - Jie Wen
- Beijing Allwegene Health, B-607 Wanlin Technology Mansion, 8 Malianwa North Road, Beijing 100094, China
| | - Kai Ma
- Probiotics Australia, 24-30 Blanck Street, Ormeau, QLD, 4208, Australia
| | - Dongjian Chen
- Invasive Technology Department, Nantong First People's Hospital, The Second Affiliated Hospital of Nantong University, #6 North Road Hai'er Xiang, Nantong 226001, Jiangsu, China
| | - Zhuo Chen
- Invasive Technology Department, Nantong First People's Hospital, The Second Affiliated Hospital of Nantong University, #6 North Road Hai'er Xiang, Nantong 226001, Jiangsu, China
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China.
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Renzini A, Marroncelli N, Noviello C, Moresi V, Adamo S. HDAC4 Regulates Skeletal Muscle Regeneration via Soluble Factors. Front Physiol 2018; 9:1387. [PMID: 30319457 PMCID: PMC6171007 DOI: 10.3389/fphys.2018.01387] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/12/2018] [Indexed: 12/11/2022] Open
Abstract
Skeletal muscle possesses a high ability to regenerate after an insult or in pathological conditions, relying on satellite cells, the skeletal muscle stem cells. Satellite cell behavior is tightly regulated by the surrounding microenvironment, which provides multiple signals derived from local cells and systemic factors. Among epigenetic mechanisms, histone deacetylation has been proved to affect muscle regeneration. Indeed, pan-histone deacetylase inhibitors were found to improve muscle regeneration, while deletion of histone deacetylase 4 (HDAC4) in satellite cells inhibits their proliferation and differentiation, leading to compromised muscle regeneration. In this study, we delineated the HDAC4 function in adult skeletal muscle, following injury, by using a tissue-specific null mouse line. We showed that HDAC4 is crucial for skeletal muscle regeneration by mediating soluble factors that influence muscle-derived cell proliferation and differentiation. These findings add new biological functions to HDAC4 in skeletal muscle that need considering when administering histone deacetylase inhibitors.
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Affiliation(s)
- Alessandra Renzini
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Nicoletta Marroncelli
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Chiara Noviello
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Viviana Moresi
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy.,Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy
| | - Sergio Adamo
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
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Wei D, Lu T, Ma D, Yu K, Li X, Chen B, Xiong J, Zhang T, Wang J. Heme oxygenase-1 reduces the sensitivity to imatinib through nonselective activation of histone deacetylases in chronic myeloid leukemia. J Cell Physiol 2018; 234:5252-5263. [PMID: 30256411 DOI: 10.1002/jcp.27334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 08/10/2018] [Indexed: 12/20/2022]
Abstract
Resistance towards imatinib (IM) remains troublesome in treating many chronic myeloid leukemia (CML) patients. Heme oxygenase-1 (HO-1) is a key enzyme of antioxidative metabolism in association with cell resistance to apoptosis. Our previous studies have shown that overexpression of HO-1 resulted in resistance development to IM in CML cells, while the mechanism remains unclear. In the current study, the IM-resistant CML cells K562R indicated upregulation of some of the histone deacetylases (HDACs) compared with K562 cells. Therefore, we herein postulated HO-1 was associated with HDACs. Silencing HO-1 expression in K562R cells inhibited the expression of some HDACs, and the sensitivity to IM was increased. K562 cells transfected with HO-1 resisted IM and underwent obvious some HDACs. These findings related to the inhibitory effects of high HO-1 expression on the reactive oxygen species (ROS) signaling pathway that negatively regulated HDACs. Increased expression of HO-1 activated HDACs by inhibiting ROS production. In summary, HO-1, which is involved in the development of drug resistance in CML cells by regulating the expression of HDACs, is probably a novel target for improving CML therapy.
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MESH Headings
- Adult
- Antineoplastic Agents/pharmacology
- Drug Resistance, Neoplasm
- Enzyme Activation
- Female
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Neoplastic
- Heme Oxygenase-1/metabolism
- Histone Deacetylases/genetics
- Histone Deacetylases/metabolism
- Humans
- Imatinib Mesylate/pharmacology
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/enzymology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Male
- Middle Aged
- Protein Kinase Inhibitors/pharmacology
- Reactive Oxygen Species/metabolism
- Signal Transduction
- Young Adult
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Affiliation(s)
- Danna Wei
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
| | - Tingting Lu
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
| | - Dan Ma
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
| | - Kunlin Yu
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
| | - Xinyao Li
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
| | - Bingqing Chen
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
| | - Ji Xiong
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
| | - Tianzhuo Zhang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
| | - Jishi Wang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, PR, China
- Department of Key Laboratory of Hematological Disease Diagnostic and Treatment Centre, Guizhou Province Hematopoietic Stem Cell Transplantation Center, Guiyang, PR, China
- Department of Clinical Medical School, Guizhou Medical University, Guiyang, PR, China
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Sodium butyrate triggers a functional elongation of microglial process via Akt-small RhoGTPase activation and HDACs inhibition. Neurobiol Dis 2018; 111:12-25. [DOI: 10.1016/j.nbd.2017.12.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/24/2017] [Accepted: 12/11/2017] [Indexed: 12/18/2022] Open
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Analysis of cytokine immune response profile in response to inflammatory stimuli in mice with genetic defects in fetal and adult hemoglobin chain expression. THE PHARMACOGENOMICS JOURNAL 2018; 18:546-555. [PMID: 29302041 DOI: 10.1038/s41397-017-0008-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/22/2017] [Accepted: 11/06/2017] [Indexed: 12/23/2022]
Abstract
Injections of a crude fetal sheep liver extract (FSLE) containing fetal hemoglobin, MPLA, and glutathione (GSSH) reversed cytokine changes in aged mice. To investigate the role of fetal hemoglobin we derived mice with homzygous deletions for either of the two major βchains, HgbβmaKO or HgbβmiKO. Hgbβmi is the most prominent fetal Hgbβ chain, with Hgbβma more prominent in adult mice. Mice lacking another fetal Hgb chain, HgbεKO, died in utero. CHO cells transfected with cloned Hgb chains were used to produce proteins for preparation of rabbit heteroantibodes. Splenocytes from HgbβmaKO mice stimulated in vitro with Conconavalin A showed a higher IL-2:IL-4 ratio than cells from HgbβmiKO mice. Following immunization in vivo with ovalbumin in alum, HgbβmaKO mice produced less IgE than HgbβmiKO mice, suggesting that in the absence of HgbβmiKO mice had a predeliction to heightened allergic-type responses. Using CHO cells transfected with cloned Hgb chains, we found that only the fetal Hgb chain, Hgbε, was secreted at high levels. Secretion of Hgbβma or Hgbβmi chains was seen only after genetic mutation to introduce the two N-linked glycosylation sites present in Hgbε, but absent in the Hgbβ chains. We speculated that a previously unanticipated biological function of a naturally secreted fetal Hgb chain may be partly responsible for the effects reported following injection of animals with fetal, not adult, Hgb. Mice receiving injections of rabbit anti-Hgbε but not either anti-Hgbβma or anti-Hgbβmi from day 14 gestation also showed a bias towards the higher IL-2:IL-4 ratios seen in HgbβmiKO mice.
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