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Zhou S, Hu J, Du S, Wang F, Fang Y, Zhang R, Wang Y, Zheng L, Gao M, Tang H. RNA-binding proteins potentially regulate alternative splicing of immune/inflammatory-associated genes during the progression of generalized pustular psoriasis. Arch Dermatol Res 2024; 316:538. [PMID: 39158708 DOI: 10.1007/s00403-024-03283-8] [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: 07/09/2024] [Revised: 07/09/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
Generalized pustular psoriasis (GPP) is a rare but severe form of psoriasis. However, the pathogenesis of GPP has not been fully elucidated. Although RNA-binding proteins (RBPs) and the alternative splicing (AS) process are essential for regulating post-transcriptional gene expression, their roles in GPP are still unclear. We aimed to elucidate the regulatory mechanisms to identify potential new therapeutic targets. Here, We analyzed an RNA sequencing (RNA-seq) dataset (GSE200977) of peripheral blood mononuclear cells (PBMCs) of 24 patients with GPP, psoriasis vulgaris (PV), and healthy controls (HCs) from the Gene Expression Omnibus (GEO) database. We found that the abnormal alternative splicing (AS) events associated with GPP were mainly "alt3p/alt5p", and 15 AS genes were differentially expressed. Notably, the proportions of different immune cell types were correlated with the expression levels of regulatory alternatively spliced genes (RASGs): significant differences were observed in expression levels of DTD2, NDUFAF3, NBPF15, and FBLN7 in B cells and ARFIP1, IPO11, and RP11-326L24.9 in neutrophils in the GPP samples. Furthermore, We identified 32 differentially expressed RNA-binding proteins (RBPs) (18 up-regulated and 14 down-regulated). Co-expression networks between 14 pairs of differentially expressed RBPs and RASGs were subsequently constructed, demonstrating that these differentially expressed RBPs may affect the progression of GPP by regulating the AS of downstream immune/inflammatory-related genes such as LINC00989, ENC1 and MMP25-AS1. Our results were innovative in revealing the involvement of inflammation-related RBPs and RASGs in the development of GPP from the perspective of RBP-regulated AS.
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Affiliation(s)
- Shan Zhou
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Junjie Hu
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Shuli Du
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Fang Wang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Ying Fang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Ranran Zhang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Yixiao Wang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Liyun Zheng
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Min Gao
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China.
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China.
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China.
| | - Huayang Tang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, 230032, Anhui, China.
- Institute of Dermatology, Anhui Medical University, Hefei, 230032, Anhui, China.
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230032, Anhui, China.
- Collaborative Innovation Center of Complex and Severe Skin Disease, Anhui Medical University, Hefei, 230032, Anhui, China.
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Vlahopoulos S, Pan L, Varisli L, Dancik GM, Karantanos T, Boldogh I. OGG1 as an Epigenetic Reader Affects NFκB: What This Means for Cancer. Cancers (Basel) 2023; 16:148. [PMID: 38201575 PMCID: PMC10778025 DOI: 10.3390/cancers16010148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/16/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
8-oxoguanine glycosylase 1 (OGG1), which was initially identified as the enzyme that catalyzes the first step in the DNA base excision repair pathway, is now also recognized as a modulator of gene expression. What is important for cancer is that OGG1 acts as a modulator of NFκB-driven gene expression. Specifically, oxidant stress in the cell transiently halts enzymatic activity of substrate-bound OGG1. The stalled OGG1 facilitates DNA binding of transactivators, such as NFκB to their cognate sites, enabling the expression of cytokines and chemokines, with ensuing recruitment of inflammatory cells. Recently, we highlighted chief aspects of OGG1 involvement in regulation of gene expression, which hold significance in lung cancer development. However, OGG1 has also been implicated in the molecular underpinning of acute myeloid leukemia. This review analyzes and discusses how these cells adapt through redox-modulated intricate connections, via interaction of OGG1 with NFκB, which provides malignant cells with alternative molecular pathways to transform their microenvironment, enabling adjustment, promoting cell proliferation, metastasis, and evading killing by therapeutic agents.
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Affiliation(s)
- Spiros Vlahopoulos
- First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, Goudi, 11527 Athens, Greece
| | - Lang Pan
- Department of Microbiology and Immunology, School of Medicine, University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555, USA;
| | - Lokman Varisli
- Department of Molecular Biology and Genetics, Science Faculty, Dicle University, Diyarbakir 21280, Turkey;
| | - Garrett M. Dancik
- Department of Computer Science, Eastern Connecticut State University, Willimantic, CT 06226, USA;
| | - Theodoros Karantanos
- Division of Hematological Malignancies, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA;
| | - Istvan Boldogh
- Department of Microbiology and Immunology, School of Medicine, University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555, USA;
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Morris G, Berk M, Maes M, Carvalho AF, Puri BK. Socioeconomic Deprivation, Adverse Childhood Experiences and Medical Disorders in Adulthood: Mechanisms and Associations. Mol Neurobiol 2019; 56:5866-5890. [PMID: 30685844 PMCID: PMC6614134 DOI: 10.1007/s12035-019-1498-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 01/15/2019] [Indexed: 12/30/2022]
Abstract
Severe socioeconomic deprivation (SED) and adverse childhood experiences (ACE) are significantly associated with the development in adulthood of (i) enhanced inflammatory status and/or hypothalamic-pituitary-adrenal (HPA) axis dysfunction and (ii) neurological, neuroprogressive, inflammatory and autoimmune diseases. The mechanisms by which these associations take place are detailed. The two sets of consequences are themselves strongly associated, with the first set likely contributing to the second. Mechanisms enabling bidirectional communication between the immune system and the brain are described, including complex signalling pathways facilitated by factors at the level of immune cells. Also detailed are mechanisms underpinning the association between SED, ACE and the genesis of peripheral inflammation, including epigenetic changes to immune system-related gene expression. The duration and magnitude of inflammatory responses can be influenced by genetic factors, including single nucleotide polymorphisms, and by epigenetic factors, whereby pro-inflammatory cytokines, reactive oxygen species, reactive nitrogen species and nuclear factor-κB affect gene DNA methylation and histone acetylation and also induce several microRNAs including miR-155, miR-181b-1 and miR-146a. Adult HPA axis activity is regulated by (i) genetic factors, such as glucocorticoid receptor polymorphisms; (ii) epigenetic factors affecting glucocorticoid receptor function or expression, including the methylation status of alternative promoter regions of NR3C1 and the methylation of FKBP5 and HSD11β2; (iii) chronic inflammation and chronic nitrosative and oxidative stress. Finally, it is shown how severe psychological stress adversely affects mitochondrial structure and functioning and is associated with changes in brain mitochondrial DNA copy number and transcription; mitochondria can act as couriers of childhood stress into adulthood.
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Affiliation(s)
- Gerwyn Morris
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, P.O. Box 291, Geelong, Victoria, Australia
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, P.O. Box 291, Geelong, Victoria, Australia
- Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
- Florey Institute for Neuroscience and Mental Health, University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Victoria, Australia
- Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Rd, Parkville, Victoria, Australia
| | - Michael Maes
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, P.O. Box 291, Geelong, Victoria, Australia
- Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand
| | - André F Carvalho
- Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Centre for Addiction & Mental Health (CAMH), Toronto, ON, Canada
| | - Basant K Puri
- Department of Medicine, Hammersmith Hospital, Imperial College London, London, UK.
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Wang Z, Liu S, Tao Y. Regulation of chromatin remodeling through RNA polymerase II stalling in the immune system. Mol Immunol 2019; 108:75-80. [PMID: 30784765 DOI: 10.1016/j.molimm.2019.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 12/11/2022]
Abstract
RNA polymerase II (Pol II) binds to promoter-proximal regions of inducible target genes that are controlled and not transcribed by several negative elongation factors, which is known as Pol II stalling. The occurrence of stalling is due to particular modification signatures and structural conformations of chromatin that affect Pol II elongation. The existence and physiological importance of Pol II stalling implies that there is a dynamic balance in chromatin regulation prior to endogenous or exogenous stimulation. In this review, we discuss the effects of ATP-dependent chromatin remodeling complexes and histone modification via transcriptional machinery Pol II C-terminal domain phosphorylated at serine 5 (S5P RNAPII) initiation and S2P RNAPII elongation on the expression or silence of specific genes after the production of activated or differentiated signals or cytokines. The response occurs immediately during immune cell development and function, and it also includes the generation of immunological memories. This summary suggests that the host immune response genes involve a novel mechanism of selectively regulatory chromatin remodeling, a fundamental and crucial aspect of epigenetic regulation.
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Affiliation(s)
- Zuli Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China; Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China; Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shuang Liu
- Institute of Medical Sciences, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China.
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China; Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China; Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
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