scholarly journals Global DNA methylation pattern and correlation with complement system proteins in Brazilian patients with systemic lupus erythematosus

2015 ◽  
Vol 13 (4) ◽  
pp. 516-523
Author(s):  
Paolo Ruggero Errante ◽  
Sandro Félix Perazzio ◽  
Francisco Sandro Menezes Rodrigues ◽  
Renato Ribeiro Nogueira Ferraz ◽  
Afonso Caricati-Neto
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
Lupus Erythematosus ◽  
Genomic Dna ◽  
Expression Patterns ◽  
Global Dna Methylation ◽  
Healthy Individuals ◽  
Systemic Lupus ◽  
Global Methylation ◽  
Laboratory Parameters

Introduction: Nucleic acid methylation may have major effects on gene expression patterns and, by consequence, on the development of autoimmunity, like Systemic Lupus Erythematosus (SLE). Objective: To investigate the pattern of global DNA methylation in SLE patients and compare this pattern with laboratory parameters. Methods: Genomic DNA was isolated from SLE patients with non-active disease (SLEDAI6), and healthy individuals. Global DNA methylation was evaluated by digestion of genomic DNA with HpaII and MspI and compared with laboratory parameters. Results and conclusion: A statistical difference in DNA global methylation was observed when SLE patients were compared to healthy individuals. A positive correlation was observed between the frequency of global methylation and C3 and C4 serum levels for SLE patients with SLEDAI

Global DNA methylation, DNMT1, and MBD2 in patients with systemic lupus erythematosus

Lupus ◽  
2010 ◽  
Vol 20 (2) ◽  
pp. 131-136 ◽  
Author(s):  
CC Liu ◽  
TT Ou ◽  
CC Wu ◽  
RN Li ◽  
YC Lin ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
Lupus Erythematosus ◽  
Global Dna Methylation ◽  
Systemic Lupus

Clinical case of lung lesions in patient with newly diagnosed systemic lupus erythematosus

2019 ◽  
Vol 1 (9) ◽  
pp. 53-57
Author(s):  
T. N. Gavva ◽  
L. V. Kuzmenkova ◽  
Yu. N. Fedulaev ◽  
T. V. Pinchuk ◽  
D. D. Kaminer ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Clinical Case ◽  
Clinical Manifestations ◽  
Lung Damage ◽  
Newly Diagnosed ◽  
Systemic Lupus ◽  
Lung Lesions ◽  
Laboratory Parameters ◽  
Clinical Interest

A case of lung damage in systemic lupus erythematosus (SLE) in a 33-year-old woman is described. This case is of clinical interest due to the complexity of diagnosis due to the fact that SLE is a disease with diverse clinical manifestations involving many organs and systems, which often makes it difficult to timely recognize the onset of the disease. SLE still remains a challenge and requires special attention to the patient s history, clinical and laboratory parameters of the patient, as well as specific immunological examinations.

scholarly journals Methyl donor micronutrients, CD40-ligand methylation and disease activity in systemic lupus erythematosus: A cross-sectional association study

Lupus ◽  
2021 ◽  
pp. 096120332110345
Author(s):  
Stefan Vordenbäumen ◽  
Alexander Sokolowski ◽  
Anna Rosenbaum ◽  
Claudia Gebhard ◽  
Johanna Raithel ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
T Cells ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Cd40 Ligand ◽  
Systemic Lupus ◽  
Methyl Donors ◽  
Methyl Donor ◽  
The Mean

Objective Hypomethylation of CD40-ligand (CD40L) in T-cells is associated with increased disease activity in systemic lupus erythematosus (SLE). We therefore investigated possible associations of dietary methyl donors and products with CD40L methylation status in SLE. Methods Food frequency questionnaires were employed to calculate methyl donor micronutrients in 61 female SLE patients (age 45.7 ± 12.0 years, disease duration 16.2 ± 8.4 years) and compared to methylation levels of previously identified key DNA methylation sites (CpG17 and CpG22) within CD40L promotor of T-cells using quantitative DNA methylation analysis on the EpiTYPER mass spectrometry platform. Disease activity was assessed by SLE Disease Activity Index (SLEDAI). Linear regression modelling was used. P values were adjusted according to Benjamini & Hochberg. Results Amongst the micronutrients assessed (g per day), methionine and cysteine were associated with methylation of CpG17 (β = 5.0 (95%CI: 0.6-9.4), p = 0.04; and β = 2.4 (0.6-4.1), p = 0.02, respectively). Methionine, choline, and cysteine were additionally associated with the mean methylation of the entire CD40L (β = 9.5 (1.0-18.0), p = 0.04; β = 1.6 (0.4-3.0), p = 0.04; and β = 4.3 (0.9-7.7), p = 0.02, respectively). Associations of the SLEDAI with hypomethylation were confirmed for CpG17 (β=-32.6 (-60.6 to -4.6), p = 0.04) and CpG22 (β=-38.3 (-61.2 to -15.4), p = 0.004), but not the mean methylation of CD40L. Dietary products with the highest impact on methylation included meat, ice cream, white bread, and cooked potatoes. Conclusions Dietary methyl donors may influence DNA methylation levels and thereby disease activity in SLE.

scholarly journals Epigenetic Contribution and Genomic Imprinting Dlk1-Dio3 miRNAs in Systemic Lupus Erythematosus

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 680
Author(s):  
Rujuan Dai ◽  
Zhuang Wang ◽  
S. Ansar Ahmed
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
Lupus Erythematosus ◽  
Critical Role ◽  
Methylation Status ◽  
Transcriptional Level ◽  
Dna Hypomethylation ◽  
Systemic Lupus ◽  
Multiple Organs ◽  
Genetic Imprinting

Systemic lupus erythematosus (SLE) is a multifactorial autoimmune disease that afflicts multiple organs, especially kidneys and joints. In addition to genetic predisposition, it is now evident that DNA methylation and microRNAs (miRNAs), the two major epigenetic modifications, are critically involved in the pathogenesis of SLE. DNA methylation regulates promoter accessibility and gene expression at the transcriptional level by adding a methyl group to 5′ cytosine within a CpG dinucleotide. Extensive evidence now supports the importance of DNA hypomethylation in SLE etiology. miRNAs are small, non-protein coding RNAs that play a critical role in the regulation of genome expression. Various studies have identified the signature lupus-related miRNAs and their functional contribution to lupus incidence and progression. In this review, the mutual interaction between DNA methylation and miRNAs regulation in SLE is discussed. Some lupus-associated miRNAs regulate DNA methylation status by targeting the DNA methylation enzymes or methylation pathway-related proteins. On the other hand, DNA hyper- and hypo-methylation are linked with dysregulated miRNAs expression in lupus. Further, we specifically discuss the genetic imprinting Dlk1-Dio3 miRNAs that are subjected to DNA methylation regulation and are dysregulated in several autoimmune diseases, including SLE.

scholarly journals Serum levels and gene polymorphisms of angiopoietin 2 in systemic lupus erythematosus patients

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jia-Min Wang ◽  
Wang-Dong Xu ◽  
Zhi-Chao Yuan ◽  
Qian Wu ◽  
Jie Zhou ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Autoimmune Diseases ◽  
Lupus Erythematosus ◽  
Gene Polymorphisms ◽  
Serum Levels ◽  
Healthy Individuals ◽  
Systemic Lupus ◽  
Potential Biomarker ◽  
Angiopoietin 2 ◽  
Inflammatory Autoimmune Diseases

AbstractThis study aimed to discuss association between serum Angiopoietin2 (Ang2) levels, Ang2 gene polymorphisms and systemic lupus erythematosus (SLE) susceptibility. It was carried out by 235 SLE, 342 other inflammatory autoimmune diseases patients and 380 healthy individuals. Serum Ang2 levels was examinated by ELISA, and Ang2 rs12674822, rs1823375, rs1868554, rs2442598, rs3739390 and rs734701 polymorphisms were genotyped using KASP. Increased Ang2 concentrations in SLE patients were observed compared with healthy controls and patients with other inflammatory autoimmune diseases. For allelic contrast, except for rs1823375 (P = 0.058) and rs2442598 (P = 0.523), frequencies of alleles for other polymorphisms were significantly different between SLE patients and controls. Genotypes for rs12674822 (TT), rs1868554 (TT, TA and TT+TA), rs734701 (TT) were negatively correlated with SLE susceptibility (OR = 0.564 for rs12674822; OR = 0.572, OR = 0.625, OR = 0.607 for rs1868554; OR = 0.580 for rs734701). Patients carrying rs1868554 T allele and rs3739390 G allele were more likely to develop hematuria (P = 0.039; P = 0.003). The G allele frequencies of rs12674822 and rs2442598 were higher in SLE patients with proteinuria (P = 0.043; P = 0.043). GC genotype frequency of rs3739390 was higher in patients with ds-DNA (+) (P = 0.024). In summary, SLE had increased serum Ang2, which may be a potential biomarker, and the polymorphisms correlated with SLE.

DNA Methylation and Systemic Lupus Erythematosus

2007 ◽  
Vol 1108 (1) ◽  
pp. 127-136 ◽  
Author(s):  
E. BALADA ◽  
J. ORDI-ROS ◽  
M. VILARDELL-TARRES
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
Lupus Erythematosus ◽  
Systemic Lupus

Increased Serum Soluble OX40 in Patients with Systemic Sclerosis

2008 ◽  
Vol 35 (12) ◽  
pp. 2359-2362 ◽  
Author(s):  
KAZUHIRO KOMURA ◽  
AYUMI YOSHIZAKI ◽  
MASANARI KODERA ◽  
YOHEI IWATA ◽  
FUMIHIDE OGAWA ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Systemic Sclerosis ◽  
Lupus Erythematosus ◽  
Tumor Necrosis ◽  
Disease Duration ◽  
Tumor Necrosis Factor Receptor ◽  
Healthy Individuals ◽  
Systemic Lupus ◽  
Clinical Associations ◽  
Necrosis Factor

ObjectiveTo determine levels of serum soluble OX40 (also termed CD134, a member of the tumor necrosis factor receptor superfamily) and their clinical associations in patients with systemic sclerosis (SSc).MethodsSerum soluble OX40 levels were examined by ELISA in 53 patients with SSc, 15 patients with systemic lupus erythematosus (SLE), and 32 healthy individuals.ResultsOX40 levels were significantly elevated in SSc patients (125.7 ± 5.7 pg/ml) compared to patients with SLE (80.7 ± 1.7 pg/ml; p < 0.005) and controls (88.2 ± 3.0 pg/ml; p < 0.0001). Elevated OX40 levels were found to be associated with disease duration of less than 2 years (p < 0.05).ConclusionOur results suggest that serum soluble OX40 levels correlate with the early-onset of SSc disease.

scholarly journals Current Understanding of Circular RNAs in Systemic Lupus Erythematosus

2021 ◽  
Vol 12 ◽  
Author(s):  
Hongjiang Liu ◽  
Yundong Zou ◽  
Chen Chen ◽  
Yundi Tang ◽  
Jianping Guo
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Rna Binding ◽  
Rna Binding Proteins ◽  
Protein Complexes ◽  
Expression Patterns ◽  
Regulation Of Gene Expression ◽  
Current Understanding ◽  
Circular Rnas ◽  
Systemic Lupus

Systemic lupus erythematosus (SLE) is a common and potentially fatal autoimmune disease that affects multiple organs. To date, its etiology and pathogenesis remains elusive. Circular RNAs (circRNAs) are a novel class of endogenous non-coding RNAs with covalently closed loop structure. Growing evidence has demonstrated that circRNAs may play an essential role in regulation of gene expression and transcription by acting as microRNA (miRNA) sponges, impacting cell survival and proliferation by interacting with RNA binding proteins (RBPs), and strengthening mRNA stability by forming RNA-protein complexes duplex structures. The expression patterns of circRNAs exhibit tissue-specific and pathogenesis-related manner. CircRNAs have implicated in the development of multiple autoimmune diseases, including SLE. In this review, we summarize the characteristics, biogenesis, and potential functions of circRNAs, its impact on immune responses and highlight current understanding of circRNAs in the pathogenesis of SLE.

Comprehensive analysis of epigenetic modifications and immune-cell infiltration in tissues from patients with systemic lupus erythematosus

Epigenomics ◽  
2021 ◽  
Author(s):  
Zhenghao He ◽  
Shihang Zhou ◽  
Ming Yang ◽  
Zhidan Zhao ◽  
Yang Mei ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
Lupus Erythematosus ◽  
Immune Cell ◽  
Epigenetic Modifications ◽  
Cell Infiltration ◽  
Immune Cell Infiltration ◽  
Methylation Analysis ◽  
Systemic Lupus ◽  
Dna Methylation Analysis

Aim: To explore potential abnormal epigenetic modifications and immune-cell infiltration in tissues from systemic lupus erythematosus (SLE) patients. Materials & methods: To utilize bioinformatics analysis and ‘wet lab' methods to identify and verify differentially expressed genes in multiple targeted organs in SLE. Results: Seven key genes, IFI44, IFI44L, IFIT1, IFIT3, PLSCR1, RSAD2 and OAS2, which are regulated by epigenetics and may be involved in the pathogenesis of SLE, are identified by combined long noncoding RNA–miRNA–mRNA network analysis and DNA methylation analysis. The results of quantitative reverse transcription PCR, immunohistochemistry and DNA methylation analysis confirmed the potential of these genes as biomarkers. Conclusion: This study reveals the potential mechanisms in SLE from epigenetic modifications and immune-cell infiltration, providing diagnostic biomarkers and therapeutic targets for SLE.

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