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Ke Q, Greenawalt AN, Manukonda V, Ji X, Tisch RM. The regulation of self-tolerance and the role of inflammasome molecules. Front Immunol 2023; 14:1154552. [PMID: 37081890 PMCID: PMC10110889 DOI: 10.3389/fimmu.2023.1154552] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/17/2023] [Indexed: 04/07/2023] Open
Abstract
Inflammasome molecules make up a family of receptors that typically function to initiate a proinflammatory response upon infection by microbial pathogens. Dysregulation of inflammasome activity has been linked to unwanted chronic inflammation, which has also been implicated in certain autoimmune diseases such as multiple sclerosis, rheumatoid arthritis, type 1 diabetes, systemic lupus erythematosus, and related animal models. Classical inflammasome activation-dependent events have intrinsic and extrinsic effects on both innate and adaptive immune effectors, as well as resident cells in the target tissue, which all can contribute to an autoimmune response. Recently, inflammasome molecules have also been found to regulate the differentiation and function of immune effector cells independent of classical inflammasome-activated inflammation. These alternative functions for inflammasome molecules shape the nature of the adaptive immune response, that in turn can either promote or suppress the progression of autoimmunity. In this review we will summarize the roles of inflammasome molecules in regulating self-tolerance and the development of autoimmunity.
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Affiliation(s)
- Qi Ke
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Ashley Nicole Greenawalt
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Veera Manukonda
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Xingqi Ji
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Roland Michael Tisch
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- *Correspondence: Roland Michael Tisch,
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2
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Epigenetic Dysregulation in Autoimmune and Inflammatory Skin Diseases. Clin Rev Allergy Immunol 2022; 63:447-471. [DOI: 10.1007/s12016-022-08956-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2022] [Indexed: 11/11/2022]
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3
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Immune-relevant genes of systemic lupus erythematosus by transcriptome profiling analysis. Cytokine 2022; 158:155975. [PMID: 35964416 DOI: 10.1016/j.cyto.2022.155975] [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: 04/11/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Our study aimed to reveal the roles of long noncoding RNA (lncRNA) and immune-relevant genes in systemic lupus erythematosus (SLE). METHODS Expression profiling dataset GSE65391 consisted of 72 healthy blood samples and 924 SLE blood samples was downloaded from the Gene Expression Omnibus. Differentially expressed RNAs (DERs) in SLE samples were identified using the Limma package. Immune-relevant DERs were uncovered after assessing the immune cell infiltration types of different samples. Modules significantly related to the disease were extracted via weighted gene co-expression network analysis (WGCNA), followed by module-trait analysis. LncRNA-mRNA co-expression network was constructed for DERs in immune-relevant modules. Genes related to SLE were further revealed via the Comparative Toxicogenomics Database (CTD). Validation assay was conducted by another independent expression profiling dataset, GSE46907 (consisted of 5 healthy blood samples and 5 SLE blood samples) and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis of 15 healthy blood samples and 15 SLE blood samples. RESULTS A total of 606 DERs, including 19 lncRNAs and 587 mRNAs, were identified. Obvious differences were observed in the proportions of 20 immune cell types, and 378 immune-relevant DERs were revealed. Genes in the lncRNA-mRNA co-expression network were significantly enriched in primary immunodeficiency, hematopoietic cell lineage, B cell receptor signaling pathway, SLE (up-regulated FCGR3A, down-regulated CD40LG, up-regulated HIST1H2BE, down-regulated human leukocyte antigen [HLA]-DOA, down-regulated HLA-DOB, up-regulated HIST1H3D, and up-regulated HIST1H2BC), and intestinal immune network for IgA production. SLE-related gene, CD40LG, retrieved from CTD has co-expression interactions with seven differentially expressed lncRNAs (HCG27, LINC02555, LINC02210, DHRS4-AS1, MIR600HG, DANCR, and LINC01278). CD40LG and HLA-DOA, were observed down-regulated, and FCGR3A, and HIST1H2BE were up-regulated in validation dataset GES46907. Moreover, CD40LG was validated to be down-regulated using qRT-PCR. CONCLUSIONS Our results provide new insight in understanding the pathogenesis of SLE and might be helpful for developing new therapeutic approaches of SLE by modulating immune response.
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Karimi B, Dehghani Firoozabadi A, Peymani M, Ghaedi K. Circulating long noncoding RNAs as novel bio-tools: Focus on autoimmune diseases. Hum Immunol 2022; 83:618-627. [PMID: 35717260 DOI: 10.1016/j.humimm.2022.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 11/04/2022]
Abstract
Long non-coding RNAs (lncRNAs) are an emerging class of non-coding RNAs that do not encode proteins. These RNAs have various essential regulatory functions. Irregular expression of lncRNAs has been related to the pathological process of varied diseases, and are considered promising diagnostic biomarkers. LncRNAs can release into the circulation and be stable in body fluids as circulating lncRNAs. A subset of circulating lncRNAs that exist in exosomes are referred to as exosomal lncRNA molecules. These lncRNAs are highly stable and resist RNases. Exosomes have captured a great deal of attention due to their involvement in regulating communications between cells. In conditions of autoimmune disease, exosomes play critical roles in the pathological processes. In this context, circulating lncRNAs have been shown to modulate the immune response and indicated as prognosis and diagnostic biomarkers for autoimmune diseases. This review highlights the role of circulating lncRNAs (particularly exosomal) as diagnostic biomarkers for autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis, psoriasis, and Sjögren's syndrome.
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Affiliation(s)
- Bahareh Karimi
- Department of Cellular and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | | | - Maryam Peymani
- Department of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Kamran Ghaedi
- Department of Cellular and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
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Wu H, Chen S, Li A, Shen K, Wang S, Wang S, Wu P, Luo W, Pan Q. LncRNA Expression Profiles in Systemic Lupus Erythematosus and Rheumatoid Arthritis: Emerging Biomarkers and Therapeutic Targets. Front Immunol 2022; 12:792884. [PMID: 35003113 PMCID: PMC8732359 DOI: 10.3389/fimmu.2021.792884] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/07/2021] [Indexed: 12/29/2022] Open
Abstract
Systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) are two common multisystem autoimmune diseases that share, among others, many clinical manifestations and serological features. The role of long non-coding RNAs (lncRNAs) has been of particular interest in the pathogenesis of autoimmune diseases. Here, we aimed to summarize the roles of lncRNAs as emerging novel biomarkers and therapeutic targets in SLE and RA. We conducted a narrative review summarizing original articles on lncRNAs associated with SLE and RA, published until November 1, 2021. Based on the studies on lncRNA expression profiles in samples (including PBMCs, serum, and exosomes), it was noted that most of the current research is focused on investigating the regulatory mechanisms of these lncRNAs in SLE and/or RA. Several lncRNAs have been hypothesized to play key roles in these diseases. In SLE, lncRNAs such as GAS5, NEAT1, TUG1, linc0949, and linc0597 are dysregulated and may serve as emerging novel biomarkers and therapeutic targets. In RA, many validated lncRNAs, such as HOTAIR, GAS5, and HIX003209, have been identified as promising novel biomarkers for both diagnosis and treatment. The shared lncRNAs, for example, GAS5, may participate in SLE pathogenesis through the mitogen-activated protein kinase pathway and trigger the AMP-activated protein kinase pathway in RA. Here, we summarize the data on key lncRNAs that may drive the pathogenesis of SLE and RA and could potentially serve as emerging novel biomarkers and therapeutic targets in the coming future.
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Affiliation(s)
- Han Wu
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shuxian Chen
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Aifen Li
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Kangyuan Shen
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shuting Wang
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Sijie Wang
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ping Wu
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wenying Luo
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qingjun Pan
- Clinical Research Center, Department of Clinical Laboratory, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Ghafouri-Fard S, Honarmand Tamizkar K, Gholipour M, Abak A, Kholghi Oskooei V, Taheri M, Rakhshan A. Association analysis of GAS5 polymorphisms and psoriasis. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Liu X, Lin J, Wu H, Wang Y, Xie L, Wu J, Qin H, Xu J. A Novel Long Noncoding RNA lincRNA00892 Activates CD4 + T Cells in Systemic Lupus Erythematosus by Regulating CD40L. Front Pharmacol 2021; 12:733902. [PMID: 34707498 PMCID: PMC8543062 DOI: 10.3389/fphar.2021.733902] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/06/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: The mechanism of CD4+ T-cell dysfunction in systemic lupus erythematosus (SLE) has not been fully understood. Increasing evidence show that long noncoding RNAs (lncRNAs) can regulate immune responses and take part in some autoimmune diseases, while little is known about the lncRNA expression and function in CD4+ T of SLE. Here, we aimed to detect the expression profile of lncRNAs in lupus CD4+ T cells and explore the mechanism that how lincRNA00892 in CD4+ T cells is involved in the pathogenesis of SLE. Methods: The expression profiles of lncRNAs and mRNAs in CD4+ T cells from SLE patients and healthy controls were detected by microarray. LincRNA00892 and CD40L were chosen for validation by quantitative real-time PCR (qRT-PCR). Coexpression network was conducted to predict the potential target genes of lincRNA00892. Then lincRNA00892 was overexpressed in normal CD4+ T cells via lentivirus transfection. The expression of lincRNA00892 was detected by qRT-PCR. The expression of CD40L was detected by qRT-PCR, western blotting, and flow cytometry, respectively. The expression of CD69 and CD23 was measured by flow cytometry. The secretion of IgG was determined by enzyme-linked immunosorbent assay (ELISA). The proteins targeted by lincRNA00892 were measured by RNA pulldown and subsequent mass spectrometry (MS). The interaction between heterogeneous nuclear ribonucleoprotein K (hnRNP K) and lincRNA00892 or CD40L was detected by RNA immunoprecipitation (RIP) assay. Results: A total of 1887 lncRNAs and 3375 mRNAs were found to be aberrantly expressed in CD4+ T cells of SLE patients compared to healthy controls. LincRNA00892 and CD40L were confirmed to be upregulated in CD4+ T cells of SLE patients by qRT-PCR. The lncRNA-mRNA coexpression network analysis indicated that CD40L was a potential target of lincRNA00892. Overexpression of lincRNA00892 enhanced CD40L protein levels while exerting little influence on CD40L mRNA levels in CD4+ T cells. In addition, lincRNA00892 could induce the activation of CD4+ T cells. Furthermore, lincRNA00892 led to the activation of B cells and subsequent secretion of IgG in a CD4+ T-cell-dependent manner. Finally, hnRNP K was found to be among the proteins pulled down by lincRNA00892, and hnRNP K could bind to lincRNA00892 or CD40L directly. Conclusion: Our results showed that the lncRNA expression profile was altered in CD4+ T cells of SLE. LincRNA00892 possibly contributed to the pathogenesis of SLE by targeting hnRNP K and subsequently upregulating CD40L expression to activate CD4+ T and B cells. These provided us a potential target for further mechanistic studies of SLE pathogenesis.
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Affiliation(s)
- Xiao Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jinran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Hao Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yilun Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Lin Xie
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jinfeng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Haihong Qin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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Elamir AM, Senara S, Abdelghaffar NK, Gaber SN, El Sayed HS. Diagnostic role of lncRNA GAS5 and its genetic polymorphisms rs2067079, rs6790 and rs17359906 in rheumatoid arthritis. Biomed Rep 2021; 15:93. [PMID: 34631048 DOI: 10.3892/br.2021.1469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/07/2021] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to detect the serum levels of long non-coding RNA (lncRNA) growth arrest-specific 5 (GAS5) in patients with rheumatoid arthritis (RA) and healthy controls, and determine the association between the rs2067079, rs6790, and rs17359906 single-nucleotide polymorphisms (SNPs) of lncRNA GAS5 gene with RA risk in the Egyptian population. Reverse transcription-quantitative PCR and real-time PCR were used to measure the serum levels of lncRNA GAS5 and genotype the two distinct alleles at the SNP sites of lncRNA GAS5 gene in 200 patients with RA and 150 controls. The mean serum levels of lncRNA GAS5 were significantly lower in the patients with RA compared with the controls (P<0.0001), and the serum levels of lncRNA GAS5 were significantly negatively associated with erythrocyte sedimentation rate, C-reactive protein levels and anti-cyclic citrullinated peptide levels in the patients with RA. The TT genotype of rs2067079 SNP was significantly associated with a decreased risk of RA [TT vs. CC: Odds ratio (OR)=2.358; 95% confidence interval (CI), 1.114-5.131; P=0.045) and the risk of rs2067079 SNP reduced with a recessive pattern (TT vs. TC + CC: OR=2.374; 95% CI, 1.091-5.123; P=0.037). rs6790 SNP was associated with RA risk in the recessive model (AA vs. GA + GG: OR=2.55; 95% CI=1.39-5.32; P=0.02). No significant associations were noted between the rs17359906 SNP and RA risk (P>0.05) or between the lncRNA GAS5 levels and their respective genotypes at the three SNPs in patients with RA (all P>0.05). Based on the results of the present study, lncRNA GAS5 may serve as a biomarker for the early detection of RA. The TT genotype of rs2067079 SNP was significantly associated with a decreased risk of RA, and a reduced risk of rs2067079 SNP was observed with a recessive pattern. rs6790 SNP was associated with RA risk in the recessive model.
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Affiliation(s)
- Azza M Elamir
- Medical Biochemistry Department, Faculty of Medicine, Fayoum University, Fayoum 63616, Egypt
| | - Soha Senara
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Fayoum University, Fayoum 63616, Egypt
| | | | - Sylvana N Gaber
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Fayoum University, Fayoum 63616, Egypt
| | - Hassan Salem El Sayed
- Medical Biochemistry Department, Faculty of Medicine, Fayoum University, Fayoum 63616, Egypt
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Liu CH, Lu YL, Huang HT, Wang CF, Luo HC, Wei GJ, Lei M, Tan T, Wang Y, Huang YY, Wei YS, Lan Y. Association of LncRNA-GAS5 gene polymorphisms and PBMC LncRNA-GAS5 level with risk of systemic lupus erythematosus in Chinese population. J Cell Mol Med 2021; 25:3548-3559. [PMID: 33728802 PMCID: PMC8034459 DOI: 10.1111/jcmm.16438] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/25/2021] [Accepted: 02/08/2021] [Indexed: 12/21/2022] Open
Abstract
Growth arrest‐specific 5 (GAS5) is a kind of long non‐coding RNAs (lncRNAs). Previous studies showed that down‐regulation of LncRNA‐GAS5 was involved in the development of systemic lupus erythematosus (SLE). However, the regulatory mechanism of down‐expressed LncRNA‐GAS5 in SLE remains obscure. In this study, we aimed to investigate the association of LncRNA‐GAS5 polymorphism with SLE risk. And further explore how LncRNA‐GAS5 is involved in the occurrence of SLE. Here, we evaluated the relationship between the risk for the development of SLE and the 5‐base pair (AGGCA/‐) insertion/deletion (I/D) polymorphism (rs145204276) in the LncRNA‐GAS5 promoter region. A custom 36‐Plex SNPscan kit was used for genotyping the LncRNA‐GAS5 polymorphisms. The LncRNA‐GAS5 and miR‐21 target prediction was performed using bioinformatics software. Enzyme‐linked immunosorbent assay (ELISA) and quantitative real‐time PCR (qRT‐PCR) were performed to assess GAS5 and miR‐21 mRNA expression and PTEN protein expression. The results revealed that rs145204276 resulted in a decreased risk of SLE (DD genotypes vs II genotypes: adjusted OR = 0.538, 95% CI, 0.30‐0.97, P = .039; ID genotypes vs II genotypes: adjusted OR = 0.641, 95% CI, 0.46‐0.89, P = .007; ID/DD genotypes vs II genotypes: adjusted OR = 0.621, 95% CI, 0.46‐0.84, P = .002; D alleles vs I alleles: adjusted OR = 0.680, 95% CI, 0.53‐0.87, P = .002). A reduced incidence of renal disorders in SLE was found to be related to ID/DD genotypes and D alleles (ID/DD genotypes vs II genotypes: OR = 0.57, 95% CI, 0.36‐0.92, P = .020; D alleles vs I alleles: OR = 0.63, 95% CI, 0.43‐0.93, P = .019). However, no significant association of rs2235095, rs6790, rs2067079 and rs1951625 polymorphisms with SLE risk was observed (P > .05). Additionally, haplotype analysis showed that a decreased SLE risk resulted from the A‐A‐C‐G‐D haplotype (OR = 0.67, 95% CI, 0.49‐0.91, P = .010). Also, patients in the SLE group showed a down‐regulated expression of LncRNA‐GAS5 and PTEN than the healthy volunteers; however, patients with rs145204276 ID/DD genotypes showed up‐regulated expression of LncRNA‐GAS5 and PTEN compared with patients carrying the II genotype. Furthermore, the miR‐21 levels were considerably up‐regulated in the SLE group than the healthy volunteers, and patients with rs145204276 ID/DD genotype had lower miR‐21 levels than the ones with the II genotype. Thus, we found that the LncRNA‐GAS5/miR‐21/PTEN signalling pathway was involved in the development of SLE, where LncRNA‐GAS5 acted as an miR‐21 target, and miR‐21 regulated the expression of PTEN. These findings indicated that the rs145204276 ID/DD genotypes in the LncRNA‐GAS5 gene promoter region may be protected against SLE by up‐regulating the expression of LncRNA‐GAS5, which consecutively regulated miR‐21 and PTEN levels.
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Affiliation(s)
- Chun-Hong Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yu-Lan Lu
- Department of Medical Reproduction Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Hua-Tuo Huang
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Chun-Fang Wang
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Hong-Cheng Luo
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Gui-Jiang Wei
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Ming Lei
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Tan Tan
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yan Wang
- Department of Laboratory Medicine, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yan-Yun Huang
- Department of Clinical Laboratory, People's Hospital of Baise, Baise, China
| | - Ye-Sheng Wei
- Department of Laboratory Medicine, The Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Yan Lan
- Department of Dermatology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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El-Desoky MM, Shemies RS, El-Bahnasawy AS, Mostafa N, Elhelaly M. Dysregulation in growth arrest-specific 5 and metastasis-associated lung adenocarcinoma transcript 1 gene expression predicts diagnosis and renal fibrosis in systemic lupus erythematosus patients. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2021. [DOI: 10.1186/s43042-020-00112-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Abstract
Background
Biomarkers that enhance overall diagnosis and prognosis of systemic lupus erythematosus (SLE) have a growing need to be recognized. The use of long non-coding ribonucleic acids (lncRNAs) as biomarkers in this regard is still largely unexplored. This study aimed to evaluate lncRNA [metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) and growth arrest-specific 5 (GAS5)] expression in SLE patients with/without nephritis. Their relation to disease activity/chronicity changes has been identified. A total of 40 SLE patients and 40 healthy controls were tested using real-time quantitative polymerase chain reaction (PCR) for expression levels of MALAT1 and GAS5.
Results
MALAT1 expression was aberrantly upregulated, while GAS5 was downregulated in patients with SLE versus controls. GAS5 relative expression was significantly downregulated in lupus nephritis (LN) patients compared to non-lupus nephritis (NN) patients. GAS5 was also correlated with glomerulosclerosis, interstitial fibrosis, tubular atrophy, and hypertension.
Conclusion
The lncRNA (GAS5 and MALAT1) may serve as diagnostic biomarkers for SLE. Moreover, GAS5 may distinguish SLE LN patients from NN patients and may predict renal fibrosis in LN patients.
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LncRNA GAS5 suppresses CD4+ T cell activation by upregulating E4BP4 via inhibiting miR-92a-3p in systemic lupus erythematosus. Immunol Lett 2020; 227:41-47. [DOI: 10.1016/j.imlet.2020.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 06/29/2020] [Accepted: 08/04/2020] [Indexed: 12/13/2022]
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LncRNA Neat1 positively regulates MAPK signaling and is involved in the pathogenesis of Sjögren's syndrome. Int Immunopharmacol 2020; 88:106992. [PMID: 33182021 DOI: 10.1016/j.intimp.2020.106992] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 09/07/2020] [Accepted: 09/07/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Primary Sjögren's syndrome (pSS) is a systemic autoimmune disease characterized by lymphocytic infiltration of the exocrine glands. Recent, studies have shown that the long noncoding RNA (lncRNA) NEAT1 plays a crucial role in regulating the immune response. However, studies on the lncRNA NEAT1 in pSS are limited. Exploring the role of the lncRNA NEAT1 in the pathogenesis of pSS was the purpose of this study. METHODS The expression of NEAT1 in peripheral blood mononuclear cells (PBMCs) of patients with pSS and healthy controls (HCs) was analyzed by real-time polymerase chain reaction (RT-PCR). Antisense oligonucleotides (ASOs) and siRNA or immune stimulation with PMA/ionomycin were used to perform loss-and-gain-of-function experiments. RT-PCR, enzyme-linked immunosorbent assay (ELISA), and Western blot were performed to detect the RNA and protein levels of specific genes induced by PMA/ionomycin stimulation. Microarray analysis was used to generate an overview of the genes that might be regulated by NEAT1. RESULTS Compared with that in HC patient cells, the expression of NEAT1 in pSS patients was mainly increased in peripheral T cells, including CD4+ and CD8+ T cells. Additionally, the expression of NEAT1 in CD4+ T cells of patients with pSS was positively correlated with the course of disease. NEAT1 expression in Jurkat cells was induced by PMA/ionomycin stimulation upon activation of the TCR-p38 pathway. Upregulation of NEAT1 expression also increased the expression of CXCL8 and TNF-α. Knocking down NEAT1 expression with an ASO suppressed the expression of CXCL8 and TNF-α in PMA/ionomycin-stimulated Jurkat cells. Then, we found that NEAT1 regulated the activation of MAPK pathway to regulate NEAT1-induced factors, selectively activating the expression of p-p38 and p-ERK1/2. Furthermore, we also detected the expression profile of Jurkat cells stimulated by PMA/ionomycin when NEAT1 was silenced or not, in order to produce an overview of NEAT1-regulated genes. CONCLUSION These results provide a new understanding of the mechanisms of pSS and reveal that NEAT1 is a positive regulator of pSS, which is of substantial significance to its pathogenesis. Thus, NEAT1 provides a potential therapeutic target for pSS.
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Sayad A, Ghafouri-Fard S, Sadeghpour S, Mirzajani S, Taheri M, Arsang-Jang S, Raji MA, Houshmand B, Amid R, Gholami L, Shams B. Dysregulation of GAS5 and OIP5-AS1 lncRNAs in periodontitis. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Senousy MA, Shaker OG, Sayed NH, Fathy N, Kortam MA. LncRNA GAS5 and miR-137 Polymorphisms and Expression are Associated with Multiple Sclerosis Risk: Mechanistic Insights and Potential Clinical Impact. ACS Chem Neurosci 2020; 11:1651-1660. [PMID: 32348112 DOI: 10.1021/acschemneuro.0c00150] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The pathogenesis of multiple sclerosis (MS) is influenced by the interaction of genetic and epigenetic mechanisms. The long noncoding RNA GAS5 acts as a competing endogenous RNA for microRNA-137 and is involved in demyelination. We investigated the association of GAS5 and miR-137 expression and their polymorphisms with MS susceptibility. One hundred and eight MS patients and 104 healthy controls were included. Expression analysis and genotyping of GAS5-rs2067079 and miR-137-rs1625579 single nucleotide polymorphisms were performed by qPCR. Serum GAS5 was upregulated, while serum miR-137 was downregulated in MS compared with the controls. Serum miR-137 was an excellent discriminator of MS patients from the controls (AUC = 0.97) and a negative independent predictor of MS in multivariate logistic analysis. Serum GAS5 expression was positively correlated with the expanded disability status scale scores in the relapsing-remitting MS patients. The rs2067079TT minor homozygote genotype was associated with an increased MS risk, while the rs1625579G minor allele was protective. rs1625579 showed an age-specific effect, while the rs2067079 affected the MS risk in gender- and age-specific manners. In MS patients, rs2067079TT was associated with a higher serum GAS5 than other genotypes, while serum miR-137 did not differ between rs1625579 genotypes. Our results suggest serum GAS5 and miR-137 as MS biomarkers, with miR-137 as a negative predictor of MS risk and GAS5 as a marker of MS severity. We propose rs2067079 and rs1625579 as novel genetic markers of MS susceptibility, and at least, rs2067079 possibly impacts the crosstalk between GAS5 and miR-137.
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Affiliation(s)
- Mahmoud A. Senousy
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Olfat G. Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt
| | - Noha H. Sayed
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Nevine Fathy
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mona A. Kortam
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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15
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Fan Z, Chen X, Liu L, Zhu C, Xu J, Yin X, Sheng Y, Zhu Z, Wen L, Zuo X, Zheng X, Zhang Y, Xu J, Huang H, Zhou F, Sun L, Luo J, Zhang D, Chen X, Cui Y, Hao Y, Cui Y, Zhang X, Chen R. Association of the Polymorphism rs13259960 in SLEAR With Predisposition to Systemic Lupus Erythematosus. Arthritis Rheumatol 2020; 72:985-996. [PMID: 31930717 DOI: 10.1002/art.41200] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 12/31/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Genome-wide association studies have identified many susceptibility loci for systemic lupus erythematosus (SLE). However, most of these loci are located in noncoding regions of the genome. Long noncoding RNAs (lncRNAs) are pervasively expressed and have been reported to be involved in various diseases. This study aimed to explore the genetic significance of lncRNAs in SLE. METHODS A genome-wide survey of SLE risk variants in lncRNA gene loci was performed in Han Chinese subjects (4,556 with SLE and 9,451 healthy controls). The functional relevance of an SLE risk variant in one of the lncRNA genes was explored using biochemical and molecular cell biology analyses. In vitro loss-of-function and gain-of-function strategies were used to clarify the functional and phenotypic relevance of this SLE susceptibility lncRNA. Moreover, correlation of this lncRNA with the degree of apoptosis in the peripheral blood of SLE patients was evaluated. RESULTS A novel SLE susceptibility locus in a lncRNA gene, designated SLEAR (for SLE-associated RNA), was identified at the single-nucleotide polymorphism rs13259960 (odds ratio 1.35, Pcombined = 1.03 × 10-11 ). The A>G variation at rs13259960, located in an intronic enhancer, was found to impair STAT1 recruitment to the enhancer that loops to the SLEAR promoter, resulting in decreased SLEAR production in peripheral blood mononuclear cells from patients with SLE (3 with the G/G genotype, 22 with A/G, and 103 with A/A at rs13259960; P = 0.0241). Moreover, SLEAR interacted with the RNA binding proteins interleukin enhancer binding factor 2, heterogeneous nuclear RNP F, and TATA-binding protein-associated factor 15, to form a complex for transcriptional activation of the downstream antiapoptotic genes. In addition, SLEAR regulated apoptosis of Jurkat cells in vitro, and its expression level was correlated with the degree of cell death in the peripheral blood of patients with SLE (r = 0.824, P = 2.15 × 10-8 ; n = 30). CONCLUSION These findings suggest a mechanism by which the risk variant at rs13259960 modulates SLEAR expression and confers a predisposition to SLE. Taken together, these results may give insights into the etiology of SLE.
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Affiliation(s)
- Zhen Fan
- Chinese Academy of Sciences, Beijing, China
| | | | - Lu Liu
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Caihong Zhu
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Jinhua Xu
- Huashan Hospital and Fudan University, Shanghai, China
| | - Xianyong Yin
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Yujun Sheng
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Zhengwei Zhu
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Leilei Wen
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Xianbo Zuo
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Xiaodong Zheng
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Yaohua Zhang
- Huashan Hospital and Fudan University, Shanghai, China
| | - Jingkai Xu
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - He Huang
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Fusheng Zhou
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Liangdan Sun
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | | | | | | | - Ya Cui
- Chinese Academy of Sciences, Beijing, China
| | - Yajing Hao
- Chinese Academy of Sciences, Beijing, China
| | - Yong Cui
- China-Japan Friendship Hospital, Beijing, China
| | - Xuejun Zhang
- Huashan Hospital and Fudan University, Shanghai, China
| | - Runsheng Chen
- Chinese Academy of Sciences and University of Chinese Academy of Sciences, Beijing, China, and Guangdong Geneway Decoding Bio-Tech Co. Ltd, Foshan, China
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16
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Zou Y, Xu H. Involvement of long noncoding RNAs in the pathogenesis of autoimmune diseases. J Transl Autoimmun 2020; 3:100044. [PMID: 32743525 PMCID: PMC7388364 DOI: 10.1016/j.jtauto.2020.100044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 03/08/2020] [Indexed: 02/07/2023] Open
Abstract
Autoimmune diseases are a group of heterogeneous disorders characterized by damage to various organs caused by abnormal innate and adaptive immune responses. The pathogenesis of autoimmune diseases is extremely complicated and has not yet been fully elucidated. Long noncoding RNAs (lncRNAs), which are defined as transcripts containing more than 200 nucleotides with no protein-coding capacity, are emerging as important regulators of gene expression via epigenetic modification, transcriptional regulation and posttranscriptional regulation. Accumulating evidence has demonstrated that lncRNAs play a key role in the regulation of immunological functions and autoimmunity. In this review, we discuss various molecular mechanisms by which lncRNAs regulate gene expression and recent findings regarding the involvement of lncRNAs in many human autoimmune diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), idiopathic inflammatory myopathy (IIM), systemic sclerosis (SSc) and Sjögren’s syndrome (pSS). lncRNAs are observed to be differentially expressed in various autoimmune diseases. lncRNAs are involved in abnormal immune regulation and inflammatory responses in autoimmune diseases, which provides new insight into disease pathogenesis. LncRNAs may have the potential of biomarkers for diagnosis and prognosis of autoimmune diseases.
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Affiliation(s)
- Yaoyao Zou
- Department of Rheumatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hanshi Xu
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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17
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Tartey S, Kanneganti TD. Inflammasomes in the pathophysiology of autoinflammatory syndromes. J Leukoc Biol 2019; 107:379-391. [PMID: 31608507 DOI: 10.1002/jlb.3mir0919-191r] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 12/15/2022] Open
Abstract
Inflammasomes are a specialized group of intracellular sensors that are key components of the host innate immune system. Autoinflammatory diseases are disorders of the innate immune system that are characterized by recurrent inflammation and serious complications. Dysregulation of the inflammasome is associated with the onset and progression of several autoinflammatory and autoimmune diseases, including cryopyrin-associated periodic fever syndrome, familial Mediterranean fever, rheumatoid arthritis, and systemic lupus erythematosus. In this review, we discuss the involvement of various inflammasome components in the regulation of autoinflammatory disorders and describe the manifestations of these autoinflammatory diseases caused by inflammasome activation.
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Affiliation(s)
- Sarang Tartey
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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18
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Differential Plasma Expression Profiles of Long Non-Coding RNAs Reveal Potential Biomarkers for Systemic Lupus Erythematosus. Biomolecules 2019; 9:biom9060206. [PMID: 31141998 PMCID: PMC6627908 DOI: 10.3390/biom9060206] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/05/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022] Open
Abstract
Identify long non-coding RNAs (lncRNAs) that might serve as biomarkers for systemic lupus erythematosus (SLE) and explore the biological functions of the identified lncRNAs. In the screening phase, we examined the lncRNA expression profile of plasma samples from 24 patients with SLE and 12 healthy controls (HCs) using lncRNA microarray with pooled samples. The candidate lncRNAs were verified in individual samples by quantitative real-time (qRT)-PCR. In the independent validation stage, the identified lncRNAs were evaluated in 240 patients with SLE and 120 HCs. The identified lncRNAs were assessed further in an external validation stage including patients with rheumatoid arthritis (RA) and primary Sjögren’s syndrome (pSS). In addition, we constructed correlated expression networks including coding–non-coding co-expression and competing endogenous RNAs (ceRNAs). Plasma levels of linc0597, lnc0640, and lnc5150 were elevated in SLE patients compared with those of HCs, whereas levels of GAS5 and lnc7074 were decreased. Five lncRNAs were identified as potential SLE biomarkers with an area under the receiver operating characteristic curve (AUC) ranging from 0.604 to 0.833 in the independent validation phase. This panel of five lncRNAs had high diagnostic accuracy for SLE (AUC = 0.966) and distinguished SLE from RA and pSS (AUC = 0.683 and 0.910, respectively). Co-expression analysis showed that GAS5, lnc0640, and lnc5150 may participate in the SLE pathogenesis through the MAPK pathway. The ceRNA network indicated that GAS5, lnc0640, lnc3643, lnc6655, and lnc7074 bind competitively with microRNAs regulating the expression of target genes. Aberrant expression and related pathways suggest the important role of lncRNAs in SLE pathogenesis. In addition, the panel of five lncRNAs (GAS5, lnc7074, linc0597, lnc0640, and lnc5150) in plasma could be used as SLE biomarkers.
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19
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Hur K, Kim SH, Kim JM. Potential Implications of Long Noncoding RNAs in Autoimmune Diseases. Immune Netw 2019; 19:e4. [PMID: 30838159 PMCID: PMC6399094 DOI: 10.4110/in.2019.19.e4] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/13/2019] [Accepted: 02/17/2019] [Indexed: 02/06/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are non-protein coding RNAs of more than 200 nucleotides in length. Despite the term “noncoding”, lncRNAs have been reported to be involved in gene expression. Accumulating evidence suggests that lncRNAs play crucial roles in the regulation of immune system and the development of autoimmunity. lncRNAs are expressed in various immune cells including T lymphocytes, B lymphocytes, macrophages, neutrophils, dendritic cells, and NK cells, and are also involved in the differentiation and activation of these immune cells. Here, we review recent studies on the role of lncRNAs in immune regulation and the differential expression of lncRNAs in various autoimmune diseases.
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Affiliation(s)
- Keun Hur
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Sang-Hyon Kim
- Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, Keimyung University College of Medicine, Daegu 41931, Korea
| | - Ji-Min Kim
- Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, Keimyung University College of Medicine, Daegu 41931, Korea
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20
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Li S, Zhang J, Tan X, Deng J, Li Y, Piao Y, Li C, Yang W, Mo W, Sun J, Sun F, Han T, Wang J, Kuang W, Li C. Microarray expression profile of circular RNAs and mRNAs in children with systemic lupus erythematosus. Clin Rheumatol 2019; 38:1339-1350. [PMID: 30628013 DOI: 10.1007/s10067-018-4392-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/18/2018] [Accepted: 11/30/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recently, it was reported that circular RNAs (circRNAs) play the crucial role in many physiological and biological processes and can be used as biomarkers. However, the information about circRNAs in children with systemic lupus erythematosus (SLE) is limited. The aim of this study is to determine the expression of circRNAs in children with SLE and investigate the significance of circRNA for diagnosing SLE. METHODS Microarray profile of circRNAs and mRNAs was performed for identifying the changes in expression of circRNAs and mRNAs between children with SLE and healthy children. Quantitative polymerase chain reaction (qPCR) was used to confirm the results. Spearman correlation test was performed to assess the correlation between circRNAs and clinical variables. The receiver operating characteristic (ROC) curve was calculated for evaluating the diagnostic value. RESULTS A comparison between the children with SLE and healthy children revealed that 348 circRNAs and 1162 mRNAs were expressed differentially. The authors constructed a complex circRNA target network consisting of 307 matched circRNA-mRNA pairs for 124 differentially expressed circRNAs (74 circRNAs were upregulated, and 50 circRNAs were downregulated) and 142 differentially expressed mRNAs (83 mRNAs were upregulated, and 59 mRNAs were downregulated) by using gene co-expression network analysis. The competing for endogenous RNA (ceRNA) network includes 42 differentially expressed circRNAs, 41 differentially expressed mRNAs, and 71 predicted miRNAs. Among these SLE patients, we detected that the hsa_circ_0021372 and hsa_circ_0075699 levels are associated with C3 and C4 levels in children with SLE. The hsa_circ_0057762 level is positively associated with the SLEDAI-2K score. The ROC curves of circRNAs showed that the levels of hsa_circ_0057762 (AUC 0.804, 95% CI 0.607-1.0, P = 0.02) and hsa_circ_0003090 (AUC 0.848, 95% CI 0.688-1.0, P = 0.008) could differentiate the patients with SLE from the healthy controls. CONCLUSIONS We firstly characterized the expression profiles of circRNA and mRNA in children with SLE and propose herein their possible roles in the pathogenesis of SLE. These results provide novel insight into the mechanisms of SLE pathogenesis, and circRNAs may serve as useful biomarkers for SLE.
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Affiliation(s)
- Shipeng Li
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Junmei Zhang
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Xiaohua Tan
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Jianghong Deng
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Yan Li
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Yurong Piao
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Chao Li
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Wenxu Yang
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Wenxiu Mo
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Jiapeng Sun
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Fei Sun
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Tongxin Han
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Jiang Wang
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Weiying Kuang
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China
| | - Caifeng Li
- Department of Rheumatology and Immunology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Nan Li Shi Road No. 56, Beijing, 100045, China.
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21
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Xue Z, Cui C, Liao Z, Xia S, Zhang P, Qin J, Guo Q, Chen S, Fu Q, Yin Z, Ye Z, Tang Y, Shen N. Identification of LncRNA Linc00513 Containing Lupus-Associated Genetic Variants as a Novel Regulator of Interferon Signaling Pathway. Front Immunol 2018; 9:2967. [PMID: 30619325 PMCID: PMC6305415 DOI: 10.3389/fimmu.2018.02967] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 12/03/2018] [Indexed: 12/13/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by augmented type I interferon signaling. High-throughput technologies have identified plenty of SLE susceptibility single-nucleotide polymorphisms (SNPs) yet the exact roles of most of them are still unknown. Functional studies are principally focused on SNPs in the coding regions, with limited attention paid to the SNPs in non-coding regions. Long non-coding RNAs (lncRNAs) are important players in shaping the immune response and show relationship to autoimmune diseases. In order to reveal the role of SNPs located near SLE related lncRNAs, we performed a transcriptome profiling of SLE patients and identified linc00513 as a significantly over expressed lncRNA containing functional SLE susceptibility loci in the promoter region. The risk-associated G allele of rs205764 and A allele of rs547311 enhanced linc00513 promoter activity and related to increased expression of linc00513 in SLE. We also identified linc00513 to be a novel positive regulator of type I interferon pathway by promoting the phosphorylation of STAT1 and STAT2. Elevated linc00513 expression positively correlated with IFN score in SLE patients. Linc00513 expression was higher in active disease patients than those inactive ones. In conclusion, our data identify two functional promoter variants of linc00513 that contribute to increased level of linc00513 and confer susceptibility on SLE. The study provides new insights into the genetics of SLE and extends the role of lncRNAs in the pathogenesis of SLE.
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Affiliation(s)
- Zhixin Xue
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Chaojie Cui
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhuojun Liao
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shiwei Xia
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Pingjing Zhang
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jialin Qin
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Qiang Guo
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Sheng Chen
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Qiong Fu
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhihua Yin
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Zhizhong Ye
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Yuanjia Tang
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Nan Shen
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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22
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Zhao CN, Mao YM, Liu LN, Li XM, Wang DG, Pan HF. Emerging role of lncRNAs in systemic lupus erythematosus. Biomed Pharmacother 2018; 106:584-592. [DOI: 10.1016/j.biopha.2018.06.175] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/26/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
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23
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Zhang TP, Zhang Q, Wu J, Zhao YL, Wang JB, Leng RX, Fan YG, Li XM, Pan HF, Ye DQ. The expression levels of long noncoding RNAs lnc0640 and lnc5150 and its gene single-nucleotide polymorphisms in rheumatoid arthritis patients. J Cell Biochem 2018; 119:10095-10106. [PMID: 30132973 DOI: 10.1002/jcb.27346] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/28/2018] [Indexed: 12/28/2022]
Abstract
OBJECTIVES The aim of our study was to evaluate two lncRNAs (lnc0640 and lnc5150) expressions and gene single-nucleotide polymorphisms (SNPs) in rheumatoid arthritis (RA) patients. METHODS The expressions of lncRNAs in peripheral blood mononuclear cells (PBMCs) were examined by quantitative real-time reverse transcription polymerase chain reaction from 65 RA patients and 54 controls. Simultaneously, three SNPs (rs13039216, rs6085189, and rs6085190) of lnc0640, three SNPs (rs1590666, rs141561256, and rs144047453) of lnc5150 were genotyped using TaqMan SNP-genotyping assays in 627 RA patients and 590 controls. RESULTS The lnc0640 level in PBMCs from RA patients was significantly increased (P = 0.001), whereas the lnc5150 level was significantly reduced (P < 0.001) compared to controls. There were significant associations of lnc0640 and lnc5150 levels with C-reactive protein in RA patients (P = 0.011 and P = 0.014, respectively), while lnc5150 level was associated with erythrocyte sedimentation rate (P = 0.022). TT genotype of rs13039216 in lnc0640 gene was statistically associated with a reduced risk of RA (TT vs CC; P = 0.046), and a decreased risk of rs13039216 variant was observed under the recessive model (P = 0.038). In addition, the G allele of rs141561256 polymorphism in lnc5150 gene was significantly associated with rheumatoid factor in RA patients (P = 0.034). There were no associations between lnc0640 and lnc5150 levels and their respective genotype in RA patients. CONCLUSIONS The expressions of lnc0640 and lnc5150 were alternated in the RA patients, suggesting that these lncRNAs may involve in the development of RA.
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Affiliation(s)
- Tian-Ping Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Qin Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Jun Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Yu-Lan Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Jie-Bing Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Yin-Guang Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Xiao-Mei Li
- Department of Rheumatology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China
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24
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Gao Y, Li S, Zhang Z, Yu X, Zheng J. The Role of Long Non-coding RNAs in the Pathogenesis of RA, SLE, and SS. Front Med (Lausanne) 2018; 5:193. [PMID: 30018955 PMCID: PMC6038710 DOI: 10.3389/fmed.2018.00193] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022] Open
Abstract
Rheumatoid diseases are a group of systemic autoimmune diseases which affect multiple organs with largely unknown etiology. In the past decade, long non-coding RNAs (lncRNAs) have emerged as important regulators of biological processes and contribute deeply to immune cell development and immune responses. Substantial evidences have been accumulated showing that LncRNAs involved in the pathogenesis of the rheumatoid diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE) and Sjögren's syndrome (SS). In this review, we summarize literature combined with bioinformatics methods to analyze the unique and common lncRNAs patterns in rheumatoid diseases and try to reveal the important function of lncRNAs in RA, SLE and SS.
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Affiliation(s)
- Yunzhen Gao
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, XinXiang, China
| | - Shasha Li
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, XinXiang, China
| | - Zhongjian Zhang
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, XinXiang, China
| | - Xinhua Yu
- Priority Area Asthma and Allergy, Research Center Borstel, Airway Research Center North, Members of the German Center for Lung Research, Borstel, Germany
| | - Junfeng Zheng
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, XinXiang, China
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Yi YS. Role of inflammasomes in inflammatory autoimmune rheumatic diseases. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017; 22:1-15. [PMID: 29302207 PMCID: PMC5746506 DOI: 10.4196/kjpp.2018.22.1.1] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/19/2017] [Accepted: 11/01/2017] [Indexed: 02/06/2023]
Abstract
Inflammasomes are intracellular multiprotein complexes that coordinate anti-pathogenic host defense during inflammatory responses in myeloid cells, especially macrophages. Inflammasome activation leads to activation of caspase-1, resulting in the induction of pyroptosis and the secretion of pro-inflammatory cytokines including interleukin (IL)-1β and IL-18. Although the inflammatory response is an innate host defense mechanism, chronic inflammation is the main cause of rheumatic diseases, such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), ankylosing spondylitis (AS), and Sjögren's syndrome (SS). Since rheumatic diseases are inflammatory/autoimmune disorders, it is reasonable to hypothesize that inflammasomes activated during the inflammatory response play a pivotal role in development and progression of these diseases. Indeed, previous studies have provided important observations that inflammasomes are actively involved in the pathogenesis of inflammatory/autoimmune rheumatic diseases. In this review, we summarize the current knowledge on several types of inflammasomes during macrophage-mediated inflammatory responses and discuss recent research regarding the role of inflammasomes in the pathogenesis of inflammatory/autoimmune rheumatic diseases. This avenue of research could provide new insights for the development of promising therapeutics to treat inflammatory/autoimmune rheumatic diseases.
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Affiliation(s)
- Young-Su Yi
- Department of Pharmaceutical Engineering, Cheongju University, Cheongju 28503, Korea
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26
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Woo YR, Cho DH, Park HJ. Molecular Mechanisms and Management of a Cutaneous Inflammatory Disorder: Psoriasis. Int J Mol Sci 2017; 18:ijms18122684. [PMID: 29232931 PMCID: PMC5751286 DOI: 10.3390/ijms18122684] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 12/11/2022] Open
Abstract
Psoriasis is a complex chronic inflammatory cutaneous disorder. To date, robust molecular mechanisms of psoriasis have been reported. Among diverse aberrant immunopathogenetic mechanisms, the current model emphasizes the role of Th1 and the IL-23/Th17 axis, skin-resident immune cells and major signal transduction pathways involved in psoriasis. The multiple genetic risk loci for psoriasis have been rapidly revealed with the advent of a novel technology. Moreover, identifying epigenetic modifications could bridge the gap between genetic and environmental risk factors in psoriasis. This review will provide a better understanding of the pathogenesis of psoriasis by unraveling the complicated interplay among immunological abnormalities, genetic risk foci, epigenetic modification and environmental factors of psoriasis. With advances in molecular biology, diverse new targets are under investigation to manage psoriasis. The recent advances in treatment modalities for psoriasis based on targeted molecules are also discussed.
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Affiliation(s)
- Yu Ri Woo
- Department of Dermatology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 07345, Korea.
| | - Dae Ho Cho
- Department of Life Science, Sookmyung Women's University, Seoul 04310, Korea.
| | - Hyun Jeong Park
- Department of Dermatology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 07345, Korea.
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27
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Li J, Wu GC, Zhang TP, Yang XK, Chen SS, Li LJ, Xu SZ, Lv TT, Leng RX, Pan HF, Ye DQ. Association of long noncoding RNAs expression levels and their gene polymorphisms with systemic lupus erythematosus. Sci Rep 2017; 7:15119. [PMID: 29123179 PMCID: PMC5680319 DOI: 10.1038/s41598-017-15156-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 10/23/2017] [Indexed: 11/09/2022] Open
Abstract
Increasing evidence has demonstrated the association between long noncoding RNAs (lncRNAs) and multiple autoimmune diseases. To explore four lncRNAs (GAS5, lnc-DC, linc0597 and linc0949) expression levels and gene polymorphisms in systemic lupus erythematosus (SLE), a two stage design was applied. In the first stage, 85 SLE patients and 71 healthy controls were enrolled to investigate the lncRNAs expression levels. Then, 1260 SLE patients and 1231 healthy controls were included to detect the single nucleotide polymorphisms (SNPs) in the differentially expressed lncRNAs identified in the first stage. Linc0597, lnc-DC and GAS5 expression levels were significantly lower in SLE patients than healthy controls (P < 0.001, P < 0.001, P = 0.003 respectively). Association of five SNPs (rs10515177, rs2070107, rs2632516, rs2877877, rs2067079) with SLE risk were analyzed. No significant association was observed between these gene polymorphisms and susceptibility to SLE (all P > 0.010), and we did not find significant association between any genotypes at five SNPs and their respective lncRNAs expression in SLE (all P > 0.010). In summary, the expression levels of linc0597, lnc-DC and GAS5 are decreased in SLE patients, but their gene polymorphisms are not associated with SLE risk, and do not influence their expression levels.
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Affiliation(s)
- Jun Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China.,Jiangyin Center for Disease Control and Prevention, Jiangsu, P. R. China
| | - Guo-Cui Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Tian-Ping Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Xiao-Ke Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Shuang-Shuang Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Lian-Ju Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Shu-Zhen Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Tian-Tian Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China. .,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China.
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui, P. R. China. .,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui, P. R. China.
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28
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Suo QF, Sheng J, Qiang FY, Tang ZS, Yang YY. Association of long non-coding RNA GAS5 and miR-21 levels in CD4 + T cells with clinical features of systemic lupus erythematosus. Exp Ther Med 2017; 15:345-350. [PMID: 29387192 DOI: 10.3892/etm.2017.5429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 06/29/2017] [Indexed: 12/11/2022] Open
Abstract
The present study aimed to assess the expression of growth arrest-specific 5 (GAS5) and microRNA (miR)-21 in systemic lupus erythematosus (SLE), and attempted to explore their association with clinical features. CD4+ T cells were isolated from peripheral blood of healthy donors and SLE patients by magnetic-activated cell sorting. GAS5 and miR-21 expression levels in cluster of differentiation (CD)4+ T cells were measured by reverse-transcription quantitative polymerase chain reaction. The results revealed that GAS5 and miR-21 levels were significantly elevated in CD4+ T cells of patients with SLE compared with those in control subjects (P<0.05). Regarding clinical features, SLE patients with ulceration had higher GAS5 expression levels in CD4+ T cells than those without ulceration (P<0.05), and the expression of miR-21 was significantly higher in CD4+ T cells of SLE patients with low levels of complement component 3 (C3) than in those with normal levels of complement C3 (P<0.05). In conclusion, GAS5 and miR-21 in CD4+ T cells may serve as potential biomarkers for the diagnosis and monitoring of the progression of SLE.
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Affiliation(s)
- Qi-Feng Suo
- Department of Central Laboratory, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Jun Sheng
- Department of Rheumatism and Immunology, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Fu-Yong Qiang
- Department of Rheumatism and Immunology, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Zong-Sheng Tang
- Department of Central Laboratory, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Ying-Ying Yang
- Physical Examination Center, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241001, P.R. China
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29
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Tang Y, Zhou T, Yu X, Xue Z, Shen N. The role of long non-coding RNAs in rheumatic diseases. Nat Rev Rheumatol 2017; 13:657-669. [PMID: 28978995 DOI: 10.1038/nrrheum.2017.162] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as key epigenetic regulators that govern gene expression and influence multiple biological processes. Accumulating evidence demonstrates that lncRNAs have critical roles in immune cell development and function. In this Review, the molecular mechanisms of gene expression regulation by lncRNAs are described and current knowledge of the role of lncRNAs in immune regulation and inflammation are presented, highlighting strategies for defining the roles of lncRNAs in the pathogenesis of multiple rheumatic diseases. Finally, research progress in understanding the role of lncRNAs in rheumatic diseases is discussed.
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Affiliation(s)
- Yuanjia Tang
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 145 Shan Dong Road (c), Shanghai 200001, China.,Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences (CAS), 320 Yueyang Road, Shanghai, China
| | - Tian Zhou
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 145 Shan Dong Road (c), Shanghai 200001, China
| | - Xiang Yu
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 145 Shan Dong Road (c), Shanghai 200001, China
| | - Zhixin Xue
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 145 Shan Dong Road (c), Shanghai 200001, China
| | - Nan Shen
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 145 Shan Dong Road (c), Shanghai 200001, China.,Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences (SIBS), University of Chinese Academy of Sciences, Chinese Academy of Sciences (CAS), 320 Yueyang Road, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, 2200 Lane 25 Xietu Road, Shanghai, China.,Collaborative Innovation Centre for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, China.,Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
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30
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Identification of long non-coding RNAs GAS5, linc0597 and lnc-DC in plasma as novel biomarkers for systemic lupus erythematosus. Oncotarget 2017; 8:23650-23663. [PMID: 28423570 PMCID: PMC5410334 DOI: 10.18632/oncotarget.15569] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 01/31/2017] [Indexed: 01/09/2023] Open
Abstract
Despite increasing evidence that long non-coding RNAs (lncRNAs) widely take part in human diseases, the role of lncRNAs in systemic lupus erythematosus (SLE) is largely unknown. In this study, we performed a two-stage study to explore the plasma levels of five lncRNAs (GAS5, linc0949, linc0597, HOTAIRM1 and lnc-DC) and their potential as SLE biomarkers. Compared with healthy controls, plasma levels of GAS5 and lnc-DC were significantly decreased (P < 0.001 and P = 0.002, respectively) while linc0597 were overexpressed in SLE patients (P < 0.001). When SLE patients were divided into SLE without nephritis and lupus nephritis (LN), the levels of lnc-DC were significantly higher in LN compared with SLE without nephritis (P = 0.018), but no significant difference in levels of GAS5 and linc0597 were found between LN and SLE without nephritis; plasma linc0949 level showed no significant difference in all comparisons. Further evaluation on potential biomarkers showed that GAS5, linc0597 and lnc-DC may specifically identify patients with SLE, the combination of GAS5 and linc0597 provided better diagnostic accuracy; lnc-DC may discriminate LN from SLE without nephritis. In summary, GAS5, linc0597 and lnc-DC in plasma could be potential biomarkers for SLE.
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31
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Long H, Yin H, Wang L, Gershwin ME, Lu Q. The critical role of epigenetics in systemic lupus erythematosus and autoimmunity. J Autoimmun 2016; 74:118-138. [PMID: 27396525 DOI: 10.1016/j.jaut.2016.06.020] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 06/29/2016] [Indexed: 02/09/2023]
Abstract
One of the major disappointments in human autoimmunity has been the relative failure on genome-wide association studies to provide "smoking genetic guns" that would explain the critical role of genetic susceptibility to loss of tolerance. It is well known that autoimmunity refers to the abnormal state that the dysregulated immune system attacks the healthy cells and tissues due to the loss of immunological tolerance to self-antigens. Its clinical outcomes are generally characterized by the presence of autoreactive immune cells and (or) the development of autoantibodies, leading to various types of autoimmune disorders. The etiology and pathogenesis of autoimmune diseases are highly complex. Both genetic predisposition and environmental factors such as nutrition, infection, and chemicals are implicated in the pathogenic process of autoimmunity, however, how much and by what mechanisms each of these factors contribute to the development of autoimmunity remain unclear. Epigenetics, which refers to potentially heritable changes in gene expression and function that do not involve alterations of the DNA sequence, has provided us with a brand new key to answer these questions. In the recent decades, increasing evidence have demonstrated the roles of epigenetic dysregulation, including DNA methylation, histone modification, and noncoding RNA, in the pathogenesis of autoimmune diseases, especially systemic lupus erythematosus (SLE), which have shed light on a new era for autoimmunity research. Notably, DNA hypomethylation and reactivation of the inactive X chromosome are two epigenetic hallmarks of SLE. We will herein discuss briefly how genetic studies fail to completely elucidate the pathogenesis of autoimmune diseases and present a comprehensive review on landmark epigenetic findings in autoimmune diseases, taking SLE as an extensively studied example. The epigenetics of other autoimmune diseases such as rheumatic arthritis, systemic sclerosis and primary biliary cirrhosis will also be summarized. Importantly we emphasize that the stochastic processes that lead to DNA modification may be the lynch pins that drive the initial break in tolerance.
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Affiliation(s)
- Hai Long
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Heng Yin
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Ling Wang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - M Eric Gershwin
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China.
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32
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Shi H, Cao N, Pu Y, Xie L, Zheng L, Yu C. Long non-coding RNA expression profile in minor salivary gland of primary Sjögren's syndrome. Arthritis Res Ther 2016; 18:109. [PMID: 27188286 PMCID: PMC4869341 DOI: 10.1186/s13075-016-1005-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/26/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND To examine the roles of long noncoding RNAs (lncRNAs) in the regulation of primary Sjögren's syndrome (pSS) and reveal the expression profile of lncRNAs in labial salivary glands (LSGs) in pSS patients. METHOD The expression of 63,431 lncRNAs and 39,887 mRNAs were determined in the LSG of four pSS patients and four healthy controls using microarray experiments. Validation was performed in 30 pSS patients and 16 controls using real-time PCR. LncRNA-mRNA co-expression and gene-pathway networks were constructed using bioinformatics software. RESULT A total of 1243 lncRNAs (upregulated: 890, downregulated: 353) and 1457 mRNAs (upregulated: 1141, downregulated: 316) were differentially expressed in the LSGs of pSS patients (fold change >2, P <0.05). Eight of these lncRNAs were validated using real-time PCR. ENST00000420219.1 (3.13-fold), ENST00000455309.1 (2.51-fold), n336161 (2.45-fold), NR_002712 (2.41-fold), ENST00000546086.1 (1.94-fold), Lnc-UTS2D-1:1 (1.79-fold), n340599 (1.69-fold), and TCONS_l2_00014794 (1.28-fold) were significantly upregulated in pSS. There were strong correlations between these lncRNAs and β2 microglobulin, disease course, erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), IgA, IgM, visual analogue scale (VAS) of parotid swelling and VAS of dry eyes. Computational analyses revealed that 28 of the differentially expressed (DE) mRNAs were associated with eight DE lncRNAs involved in chemokine signaling pathways, the nuclear factor-kappa B (NF-κB) signaling pathway, and tumor necrosis factor (TNF) signaling pathway. CONCLUSIONS Our study revealed the expression profile of lncRNAs in LSGs of pSS patients. Many novel lncRNA transcripts that play important roles in the pathogenesis of pSS were dysregulated in pSS. Therefore, this study will aid in the development of new diagnostic biomarkers and drug therapies.
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Affiliation(s)
- Huan Shi
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Ningning Cao
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yiping Pu
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Lisong Xie
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Lingyan Zheng
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China.
| | - Chuangqi Yu
- Department of Oral Surgery, Affiliated Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China.
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33
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Wu R, Su Y, Wu H, Dai Y, Zhao M, Lu Q. Characters, functions and clinical perspectives of long non-coding RNAs. Mol Genet Genomics 2016; 291:1013-33. [PMID: 26885843 DOI: 10.1007/s00438-016-1179-y] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 01/26/2016] [Indexed: 02/07/2023]
Abstract
It is well established that most of the human genome and those of other mammals and plants are transcribed into RNA without protein-coding capacity, which we define as non-coding RNA. From siRNA to microRNA, whose functions and features have been well characterized, non-coding RNAs have been a popular topic in life science research over the last decade. Long non-coding RNAs (lncRNAs), however, as a novel class of transcripts, are distinguished from these other small RNAs. Recent studies have revealed a diverse population of lncRNAs with different sizes and functions across different species. These populations are expressed dynamically and act as important regulators in a variety of biological processes, especially in gene expression. Nevertheless, the functions and mechanisms of most lncRNAs remain unclear. In this review, we present recent progress in the identification of lncRNAs, their functions and molecular mechanisms, their roles in human diseases, their potential diagnostic and therapeutic applications as well as newer technologies for identifying deregulated lncRNAs in disease tissues.
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Affiliation(s)
- Ruifang Wu
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital, Central South University, #139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yuwen Su
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital, Central South University, #139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Haijing Wu
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital, Central South University, #139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yong Dai
- Clinical Medical Research Center, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China
| | - Ming Zhao
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital, Central South University, #139 Renmin Middle Road, Changsha, 410011, Hunan, China.
| | - Qianjin Lu
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital, Central South University, #139 Renmin Middle Road, Changsha, 410011, Hunan, China.
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34
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Xiao G, Zuo X. Epigenetics in systemic lupus erythematosus. Biomed Rep 2015; 4:135-139. [PMID: 26893827 DOI: 10.3892/br.2015.556] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/04/2015] [Indexed: 01/06/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease, with mechanisms that remain to be elucidated. Previous studies have proposed that genes and environments are required for lupus to develop and flare. It has been found that epigenetics have a significant influence on SLE. The present review will concentrate on epigenetics in SLE. There are a number of studies reporting that autoreactive T cells and B cells in patients with SLE have evidence of altered patterns of DNA methylation, modifications of histones and microRNA (miRNA). Long noncoding RNAs (lncRNAs) are another type of noncoding RNAs, which have an important role in epigenetics. lncRNAs may possibly become a new hotspot in SLE.
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Affiliation(s)
- Gong Xiao
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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35
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Abstract
It is increasingly recognised that lncRNAs play essential regulatory roles in fundamental biological processes and, consequently, that their dysregulation may contribute to major human diseases, including cancer. Better understanding of lncRNA biology may therefore offer new insights into pathogenetic mechanisms and thereby offer novel opportunities for diagnosis and therapy. Of particular interest in this regard is GAS5 lncRNA, which is down-regulated in multiple cancers, with expression levels related to both clinico-pathological characteristics and patient prognosis. Functional studies have further shown that GAS5 lncRNA both inhibits the proliferation and promotes the apoptosis of multiple cell types, and that together these cellular mechanisms of action are likely to form the basis of its tumour suppressor action. At the same time, advances have been made in our understanding of the molecular mechanisms of GAS5 lncRNA action in recent years, including riborepression of certain steroid hormone receptors and sequestration of miR-21, impacting key regulatory pathways of cell survival. Overall this accumulating knowledge has the potential to improve both the diagnosis and treatment of cancer, and ultimately patient outcome.
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Affiliation(s)
- Mark R Pickard
- School of Life Sciences, Huxley Building, Keele University, Keele ST5 5BG, UK.
| | - Gwyn T Williams
- School of Life Sciences, Huxley Building, Keele University, Keele ST5 5BG, UK.
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36
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Sester DP, Sagulenko V, Thygesen SJ, Cridland JA, Loi YS, Cridland SO, Masters SL, Genske U, Hornung V, Andoniou CE, Sweet MJ, Degli-Esposti MA, Schroder K, Stacey KJ. Deficient NLRP3 and AIM2 Inflammasome Function in Autoimmune NZB Mice. THE JOURNAL OF IMMUNOLOGY 2015; 195:1233-41. [PMID: 26116505 DOI: 10.4049/jimmunol.1402859] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 06/01/2015] [Indexed: 01/06/2023]
Abstract
Inflammasomes are protein complexes that promote caspase activation, resulting in processing of IL-1β and cell death, in response to infection and cellular stresses. Inflammasomes have been anticipated to contribute to autoimmunity. The New Zealand Black (NZB) mouse develops anti-erythrocyte Abs and is a model of autoimmune hemolytic anemia. These mice also develop anti-nuclear Abs typical of lupus. In this article, we show that NZB macrophages have deficient inflammasome responses to a DNA virus and fungal infection. Absent in melanoma 2 (AIM2) inflammasome responses are compromised in NZB by high expression of the AIM 2 antagonist protein p202, and consequently NZB cells had low IL-1β output in response to both transfected DNA and mouse CMV infection. Surprisingly, we also found that a second inflammasome system, mediated by the NLR family, pyrin domain containing 3 (NLRP3) initiating protein, was completely lacking in NZB cells. This was due to a point mutation in an intron of the Nlrp3 gene in NZB mice, which generates a novel splice acceptor site. This leads to incorporation of a pseudoexon with a premature stop codon. The lack of full-length NLRP3 protein results in NZB being effectively null for Nlrp3, with no production of bioactive IL-1β in response to NLRP3 stimuli, including infection with Candida albicans. Thus, this autoimmune strain harbors two inflammasome deficiencies, mediated through quite distinct mechanisms. We hypothesize that the inflammasome deficiencies in NZB alter the interaction of the host with both microflora and pathogens, promoting prolonged production of cytokines that contribute to development of autoantibodies.
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Affiliation(s)
- David P Sester
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia;
| | - Vitaliya Sagulenko
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Sara J Thygesen
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Jasmyn A Cridland
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Yen Siew Loi
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Simon O Cridland
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Seth L Masters
- The Walter and Eliza Hall Institute of Medical Research, Parkville 3052, Victoria, Australia
| | - Ulrich Genske
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Veit Hornung
- Institute for Clinical Chemistry and Clinical Pharmacology, University Hospital, University of Bonn, 53127, Bonn, Germany
| | - Christopher E Andoniou
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Crawley 6009, Western Australia, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands 6009, Western Australia, Australia; and
| | - Matthew J Sweet
- Institute for Molecular Bioscience, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Mariapia A Degli-Esposti
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Crawley 6009, Western Australia, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands 6009, Western Australia, Australia; and
| | - Kate Schroder
- Institute for Molecular Bioscience, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Katryn J Stacey
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia; Institute for Molecular Bioscience, The University of Queensland, Brisbane 4072, Queensland, Australia
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Wu Y, Zhang F, Ma J, Zhang X, Wu L, Qu B, Xia S, Chen S, Tang Y, Shen N. Association of large intergenic noncoding RNA expression with disease activity and organ damage in systemic lupus erythematosus. Arthritis Res Ther 2015; 17:131. [PMID: 25994030 PMCID: PMC4440330 DOI: 10.1186/s13075-015-0632-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 04/20/2015] [Indexed: 01/24/2023] Open
Abstract
INTRODUCTION Despite growing evidence that large intergenic noncoding RNAs (lincRNAs) can regulate gene expression and widely take part in normal physiological and disease conditions, our knowledge of systemic lupus erythematosus (SLE)-related lincRNAs remains limited. The aim of this study was to detect the levels of four lincRNAs (ENST00000500949: linc0949, ENST00000500597: linc0597, ENST00000501992: linc1992, and ENST00000523995: linc3995) involved in innate immunity in the peripheral blood mononuclear cells (PBMCs) of patients with SLE and correlate these lincRNA levels with disease activity, organ damage, clinical features and medical therapies. METHODS PBMCs were obtained from 102 patients with SLE, 54 patients with rheumatoid arthritis (RA) and 76 healthy donors. lincRNA expression levels were measured by real-time quantitative polymerase chain reaction. Disease activity was assessed using the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) scores, and organ damage was evaluated with the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index. RESULTS linc0949 and linc0597 were significantly decreased in patients with SLE compared with patients with RA and healthy control subjects. linc0949 was correlated with SLEDAI-2K score (r = -0.329, P = 0.0007), as well as with complement component C3 level (r = 0.348, P = 0.0003). The level of linc0949 was also reduced in patients with SLE who had the presence of cumulative organ damage. In addition, decreasing expression of linc0949 was associated with lupus nephritis. linc0949 expression significantly increased after treatment, whereas neither disease activity nor organ damage correlated with linc0597 expression. CONCLUSIONS Our results provide novel empirical evidence that linc0949 could be a potential biomarker for diagnosis, disease activity and therapeutic response in SLE.
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Affiliation(s)
- Yanfang Wu
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Feifei Zhang
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM) and Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Yue Yang Road, Shanghai, 200031, People's Republic of China.
| | - Jianyang Ma
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM) and Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Yue Yang Road, Shanghai, 200031, People's Republic of China.
| | - Xiaoyan Zhang
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Lingling Wu
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Bo Qu
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Shiwei Xia
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Shunle Chen
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Yuanjia Tang
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
| | - Nan Shen
- Shanghai Institute of Rheumatology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shan Dong Middle Road, Shanghai, 200001, People's Republic of China.
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM) and Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Yue Yang Road, Shanghai, 200031, People's Republic of China.
- Division of Rheumatology and the Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.
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Wu GC, Pan HF, Leng RX, Wang DG, Li XP, Li XM, Ye DQ. Emerging role of long noncoding RNAs in autoimmune diseases. Autoimmun Rev 2015; 14:798-805. [PMID: 25989481 DOI: 10.1016/j.autrev.2015.05.004] [Citation(s) in RCA: 197] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 05/07/2015] [Indexed: 12/17/2022]
Abstract
Long noncoding RNA (lncRNA), with size larger than 200 nucleotides, is a new class of noncoding RNA. Emerging evidence has revealed that lncRNAs play a key role in the regulation of immunological functions and autoimmunity. Herein, we review the recent findings of lncRNA regulation in immune functions and in the development of autoimmunity and autoimmune disease. In addition, we focus on the involvement of lncRNA regulation in innate and adaptive immune responses, immune cell development, and differential expression of lncRNAs in autoimmune diseases, including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), type 1 diabetes mellitus (T1DM), multiple sclerosis (MS), autoimmune thyroid disease (AITD), psoriasis, polymyositis/dermatomyositis (PM/DM) and Crohn's disease (CD).
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Affiliation(s)
- Guo-Cui Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Laboratory of Population Health and Major Disease Screening and Diagnosis, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Laboratory of Population Health and Major Disease Screening and Diagnosis, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Laboratory of Population Health and Major Disease Screening and Diagnosis, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - De-Guang Wang
- Department of Nephrology, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
| | - Xiang-Pei Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital, Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei 230001, Anhui, China
| | - Xiao-Mei Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital, Affiliated to Anhui Medical University, 17 Lujiang Road, Hefei 230001, Anhui, China
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Laboratory of Population Health and Major Disease Screening and Diagnosis, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
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The inflammasome and lupus: another innate immune mechanism contributing to disease pathogenesis? Curr Opin Rheumatol 2015; 26:475-81. [PMID: 24992143 DOI: 10.1097/bor.0000000000000088] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF REVIEW The role of innate immunity in systemic lupus erythematosus (SLE) has been a rapidly expanding area of research over the last decade. Included in this rubric is the concept that activation of the inflammasome, a molecular complex that activates caspase-1 and in turn the cytokines IL-1β and IL-18, is important in lupus pathogenesis. This review will summarize the recent discoveries exploring the role of the inflammasome machinery in SLE. RECENT FINDINGS Immune complexes can activate the NLRP3 inflammasome, and SLE-derived macrophages are hyper-responsive to innate immune stimuli, leading to enhanced activation of the inflammasome and production of inflammatory cytokines. Work in several murine models suggests an important role for the NLRP3 inflammasome in mediating lupus nephritis. Caspase-1, the central enzyme of the inflammasome, is essential for the development of type I interferon responses, autoantibody production, and nephritis in the pristane model of lupus. The absence of melanoma 2 inflammasome may have protective and pathogenic roles in SLE. SUMMARY Recent evidence suggests that the inflammasome machinery is dysregulated in SLE, plays an important role in promotion of organ damage, and may mediate cross-talk between environmental triggers and the development of lupus. Further research should focus on whether inhibition of inflammasome components may serve as a viable target for therapeutic development in SLE.
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Rowland SL, Riggs JM, Gilfillan S, Bugatti M, Vermi W, Kolbeck R, Unanue ER, Sanjuan MA, Colonna M. Early, transient depletion of plasmacytoid dendritic cells ameliorates autoimmunity in a lupus model. J Exp Med 2014; 211:1977-91. [PMID: 25180065 PMCID: PMC4172228 DOI: 10.1084/jem.20132620] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 07/25/2014] [Indexed: 01/30/2023] Open
Abstract
Plasmacytoid dendritic cells (pDCs) have long been implicated in the pathogenesis of lupus. However, this conclusion has been largely based on a correlative link between the copious production of IFN-α/β by pDCs and the IFN-α/β "signature" often seen in human lupus patients. The specific contribution of pDCs to disease in vivo has not been investigated in detail. For this reason, we generated a strain of BXSB lupus-prone mice in which pDCs can be selectively depleted in vivo. Early, transient ablation of pDCs before disease initiation resulted in reduced splenomegaly and lymphadenopathy, impaired expansion and activation of T and B cells, reduced antibodies against nuclear autoantigens and improved kidney pathology. Amelioration of pathology coincided with decreased transcription of IFN-α/β-induced genes in tissues. PDC depletion had an immediate impact on the activation of immune cells, and importantly, the beneficial effects on pathology were sustained even though pDCs later recovered, indicating an early pDC contribution to disease. Together, our findings demonstrate a critical function for pDCs during the IFN-α/β-dependent initiation of autoimmune lupus and point to pDCs as an attractive therapeutic target for the treatment of SLE.
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Affiliation(s)
- Sarah L Rowland
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Jeffrey M Riggs
- Respiratory, Inflammation and Autoimmunity Research Department, MedImmune, Gaithersburg, MD 20878
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Mattia Bugatti
- Department of Pathology, University of Brescia, 25123 Brescia, Italy
| | - William Vermi
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110 Department of Pathology, University of Brescia, 25123 Brescia, Italy
| | - Roland Kolbeck
- Respiratory, Inflammation and Autoimmunity Research Department, MedImmune, Gaithersburg, MD 20878
| | - Emil R Unanue
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Miguel A Sanjuan
- Respiratory, Inflammation and Autoimmunity Research Department, MedImmune, Gaithersburg, MD 20878
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
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Kimura J, Ichii O, Nakamura T, Horino T, Otsuka S, Kon Y. BXSB-type genome causes murine autoimmune glomerulonephritis: pathological correlation between telomeric region of chromosome 1 and Yaa. Genes Immun 2014; 15:182-9. [PMID: 24477164 DOI: 10.1038/gene.2014.4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/05/2013] [Accepted: 12/19/2013] [Indexed: 12/11/2022]
Abstract
The autoimmune-prone BXSB/MpJ-Yaa mouse is a model of membranous proliferative glomerulonephritis (MPGN). Severe MPGN has been reported only in male BXSB/MpJ-Yaa mice because of the Y-linked autoimmune accelerator (Yaa) locus. However, we show that female BXSB/MpJ mice develop age-related MPGN without Yaa. Female BXSB/MpJ mice clearly developed MPGN characterized by increased mesangial cells, thickening of the glomerular basement membrane (GBM), double contouring and spike formation of GBM with T-cell infiltrations and podocyte injuries corresponding with increased autoantibody production and albuminuria. Analysis of the renal levels of the Fc gamma receptor (Fcgr) and interferon-activated gene 200 (Ifi200) family genes, which are MPGN candidate genes localized to the telomeric region of chromosome 1 (Chr.1), showed that Fcgr2b levels decreased, whereas Fcgr3 and Ifi202b levels increased in female BXSB/MpJ mice compared with healthy C57BL/6 mice. Furthermore, in isolated glomeruli, microarray analysis revealed that Fcgr3, Fcgr4 and Ifi202b expression was higher in male BXSB/MpJ-Yaa mice than in male BXSB/MpJ mice. These findings indicate that the BXSB/MpJ-type genome causes age-related MPGN with significant contribution from the telomeric region of Chr.1, and Yaa enhances the expression of genes localizing to this locus, thereby leading to severe MPGN in male mice.
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Affiliation(s)
- J Kimura
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - O Ichii
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - T Nakamura
- 1] Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan [2] Section of Biological Safety Research, Chitose Laboratory, Japan Food Research Laboratories, Chitose, Japan
| | - T Horino
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - S Otsuka
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Y Kon
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Growth arrest on inhibition of nonsense-mediated decay is mediated by noncoding RNA GAS5. BIOMED RESEARCH INTERNATIONAL 2013; 2013:358015. [PMID: 24319682 PMCID: PMC3844204 DOI: 10.1155/2013/358015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 09/19/2013] [Indexed: 12/13/2022]
Abstract
Nonsense-mediated decay is a key RNA surveillance mechanism responsible for the rapid degradation of mRNAs containing premature termination codons and hence prevents the synthesis of truncated proteins. More recently, it has been shown that nonsense-mediated decay also has broader significance in controlling the expression of a significant proportion of the transcriptome. The importance of this mechanism to the mammalian cell is demonstrated by the observation that its inhibition causes growth arrest. The noncoding RNA growth arrest specific transcript 5 (GAS5) has recently been shown to play a key role in growth arrest induced by several mechanisms, including serum withdrawal and treatment with the mTOR inhibitor rapamycin. Here we show that inhibition of nonsense-mediated decay in several human lymphocyte cell lines causes growth arrest, and siRNA-mediated downregulation of GAS5 in these cells significantly alleviates the inhibitory effects observed. These observations hold true for inhibition of nonsense-mediated decay both through RNA interference and through pharmacological inhibition by aminoglycoside antibiotics gentamycin and G418. These studies have important implications for ototoxicity and nephrotoxicity caused by gentamycin and for the proposed use of NMD inhibition in treating genetic disease. This report further demonstrates the critical role played by GAS5 in the growth arrest of mammalian cells.
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Van Roosbroeck K, Pollet J, Calin GA. miRNAs and long noncoding RNAs as biomarkers in human diseases. Expert Rev Mol Diagn 2013; 13:183-204. [PMID: 23477558 DOI: 10.1586/erm.12.134] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Noncoding RNAs (ncRNAs) are transcripts that have no apparent protein-coding capacity; however, many ncRNAs have been found to play a major biological role in human physiology. Their deregulation is implicated in many human diseases, but their exact roles are only beginning to be elucidated. Nevertheless, ncRNAs are extensively studied as a novel source of biomarkers, and the fact that they can be detected in body fluids makes them extremely suitable for this purpose. The authors mainly focus on ncRNAs as biomarkers in cancer, but also touch on other human diseases such as cardiovascular diseases, autoimmune diseases, neurological disorders and infectious diseases. The authors discuss the established methods and provide a selection of emerging new techniques that can be used to detect and quantify ncRNAs. Finally, the authors discuss ncRNAs as a new strategy for therapeutic interventions.
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Affiliation(s)
- Katrien Van Roosbroeck
- Department of Experimental Therapeutics, Unit 1950, The University of Texas MD Anderson Cancer Center, 1881 East Road, Houston, TX 77054, USA
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44
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Sun M, Kraus WL. Minireview: Long noncoding RNAs: new "links" between gene expression and cellular outcomes in endocrinology. Mol Endocrinol 2013; 27:1390-402. [PMID: 23885095 DOI: 10.1210/me.2013-1113] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Recent advances in sequencing technologies have revealed that the genome is extensively transcribed, yielding a large repertoire of noncoding RNAs. These include long noncoding RNAs (lncRNAs), mRNA-like molecules that do not code for proteins, which are emerging as a new class of RNAs that play important roles in a variety of cellular processes. Ongoing studies are revealing new insights about lncRNAs, including their physiological functions, disease relationships, and molecular mechanisms of action. Characterized lncRNAs have been shown to interact with and modulate the activity of other RNAs and protein partners, leading to alterations in transcriptional and posttranscriptional regulatory processes. In this review, we summarize the key features of lncRNAs, their molecular mechanisms of action, biological functions, and therapeutic implications, particularly as they apply to the field of molecular endocrinology. In addition, we provide a brief overview of how molecular biologists are beginning to probe the identity, mechanisms, and functions of this emerging class of RNA molecules.
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Affiliation(s)
- Miao Sun
- Department of Molecular Biology and Genetics and Graduate Field of Biochemistry, Cornell University, Ithaca, New York 14853, USA
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Molecular mechanism for p202-mediated specific inhibition of AIM2 inflammasome activation. Cell Rep 2013; 4:327-39. [PMID: 23850291 DOI: 10.1016/j.celrep.2013.06.024] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 05/14/2013] [Accepted: 06/19/2013] [Indexed: 02/05/2023] Open
Abstract
Mouse p202 containing two hemopoietic expression, interferon inducibility, nuclear localization (HIN) domains antagonizes AIM2 inflammasome signaling and potentially modifies lupus susceptibility. We found that only HIN1 of p202 binds double-stranded DNA (dsDNA), while HIN2 forms a homotetramer. Crystal structures of HIN1 revealed that dsDNA is bound on face opposite the site used in AIM2 and IFI16. The structure of HIN2 revealed a dimer of dimers, the face analogous to the HIN1 dsDNA binding site being a dimerization interface. Electron microscopy imaging showed that HIN1 is flexibly linked to HIN2 in p202, and tetramerization provided enhanced avidity for dsDNA. Surprisingly, HIN2 of p202 interacts with the AIM HIN domain. We propose that this results in a spatial separation of the AIM2 pyrin domains, and indeed p202 prevented the dsDNA-dependent clustering of apoptosis-associated speck-like protein containing caspase recruitment domain (ASC) and AIM2 inflammasome activation. We hypothesize that while p202 was evolutionarily selected to limit AIM2-mediated inflammation in some mouse strains, the same mechanism contributes to increased interferon production and lupus susceptibility.
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Abstract
Autoreactive B and T cells are present in healthy, autoimmunity-free individuals, but they are kept in check by various regulatory mechanisms. In systemic lupus erythematosus (SLE) patients, however, autoreactive cells are expanded, activated, and produce large quantities of autoantibodies, directed especially against nuclear antigens. These antibodies form immune complexes with self-nucleic acids present in SLE serum. Since self-DNA and self-RNA in the form of protein complexes can act as TLR9 and TLR7 ligands, respectively, TLR stimulation is suggested as an additional signal contributing to activation and/or modulation of the aberrant adaptive immune response. Data from mouse models suggest a pathogenic role for TLR7 and a protective role for TLR9 in the pathogenesis of SLE. Future investigations are needed to elucidate the underlying modulatory mechanisms and the role of TLR7 and TLR9 in the complex pathogenesis of human SLE.
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Affiliation(s)
- T Celhar
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #03 Immunos, Singapore
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A critical role for non-coding RNA GAS5 in growth arrest and rapamycin inhibition in human T-lymphocytes. Biochem Soc Trans 2011; 39:482-6. [PMID: 21428924 DOI: 10.1042/bst0390482] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Non-coding RNA GAS5 (growth arrest-specific transcript 5) is a 5'-TOP (5'-terminal oligopyrimidine tract) RNA, whose translation, and consequently also stability, is controlled by the mTOR (mammalian target of rapamycin) pathway. GAS5 was identified by functional expression cloning and is necessary and sufficient for normal growth arrest in both leukaemic and untransformed human T-lymphocytes. GAS5 is also required for the inhibitory effects of rapamycin and its analogues on T-cells. The striking functional effects of GAS5 may be mediated through the snoRNAs (small nucleolar RNAs) encoded in its introns and/or through the unusual folding of the mRNA itself, which sequesters, and therefore inhibits, the glucocorticoid receptor.
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Centola M, Szekanecz Z, Kiss E, Zeher M, Szegedi G, Nakken B, Szodoray P. Gene expression profiles of systemic lupus erythematosus and rheumatoid arthritis. Expert Rev Clin Immunol 2010; 3:797-806. [PMID: 20477029 DOI: 10.1586/1744666x.3.5.797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Gene expression profiling using microarray technology is being employed to define specific molecular mediators and pathways involved in immunobiology, to understand the intricate interplay of genes participating in the pathogenesis, and to develop biomarkers of disease activity in both systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). This review summarizes the latest information on the pathogenesis of SLE and RA and describes the utilization of microarray technology in these systemic autoimmune diseases.
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Affiliation(s)
- Michael Centola
- Oklahoma Medical Research Foundation, Microarray Core Facility, Arthritis and Immunology Research Program, Oklahoma City, OK, USA.
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Lin Q, Hou R, Sato A, Ohtsuji M, Ohtsuji N, Nishikawa K, Tsurui H, Amano H, Amano E, Sudo K, Nishimura H, Shirai T, Hirose S. Inhibitory IgG Fc receptor promoter region polymorphism is a key genetic element for murine systemic lupus erythematosus. J Autoimmun 2010; 34:356-63. [DOI: 10.1016/j.jaut.2009.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Revised: 08/22/2009] [Accepted: 08/29/2009] [Indexed: 12/22/2022]
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50
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Ichii O, Kamikawa A, Otsuka S, Hashimoto Y, Sasaki N, Endoh D, Kon Y. Overexpression of interferon-activated gene 202 (Ifi202) correlates with the progression of autoimmune glomerulonephritis associated with the MRL chromosome 1. Lupus 2010; 19:897-905. [PMID: 20167632 DOI: 10.1177/0961203310362534] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
B6.MRLc1(82-100) congenic mice carrying the telomeric region of lupus-prone MRL chromosome 1 develop autoimmune glomerulonephritis (GN). The GN susceptibility locus of B6.MRLc1(82-100) contains the interferon activated gene 200 (Ifi200) family, which consists of Ifi202, 203, 204, and 205. Recently, Ifi202 was suggested as a candidate gene for murine lupus. In this study, we assessed the association between Ifi200 family and GN in several disease models. We compared the expression of Ifi200 family members in 24 organs between the C57BL/6 and B6.MRLc1(82-100). The expressions of Ifi200 family members differed between strains, and the most dramatic differences appeared in Ifi202 expression. Briefly, in the blood, immune organs, lungs, and testes mRNA expression was higher in B6.MRLc1(82-100) mice. In the kidney and immune organs, only Ifi202 expression increased with the development of GN in B6.MRLc1(82-100), and significant differences from C57BL/6 were observed even before disease onset. Ifi202 expression in the kidneys of BXSB, NZB/WF1, and MRL/lpr was also significantly high in the early- and late-disease stages. Furthermore, laser microdissection-reverse-transcriptase-polymerase chain reaction analysis confirmed the high Ifi202 expression in all areas of B6.MRLc1(82-100) kidneys. In conclusion, in the Ifi200 family, Ifi202 expressions in the kidney and immune organs significantly increased with GN progression.
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Affiliation(s)
- O Ichii
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University Sapporo, Japan.
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