Autoimmunity最新文献

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Effects of Apelin on the fibrosis of retinal tissues and Müller cells in diabetes retinopathy through the JAK2/STAT3 signalling pathway. Apelin通过JAK2/STAT3信号通路对糖尿病视网膜病变视网膜组织和Müller细胞纤维化的影响。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-09-28 DOI: 10.1080/08916934.2023.2259129
Yang Li, Qinrui Hu, Bin Wang
{"title":"Effects of Apelin on the fibrosis of retinal tissues and Müller cells in diabetes retinopathy through the JAK2/STAT3 signalling pathway.","authors":"Yang Li, Qinrui Hu, Bin Wang","doi":"10.1080/08916934.2023.2259129","DOIUrl":"10.1080/08916934.2023.2259129","url":null,"abstract":"<p><p>Retinal fibrosis was a key characteristic of diabetes retinopathy (DR). Apelin was found to be a candidate for tissue fibrosis. Nevertheless, the role of Apelin in the Müller cells in DR remains unclear. This study identified the function and mechanism of Apelin in Müller cells and the fibrosis of retinal tissue. Western blot was carried out to detect the Apelin, GFAP, Collagen I, α-SMA, JAK2 and STAT3 protein levels. Masson staining was performed to display the histopathological changes in retinal tissue of diabetic mellitus (DM) rats. The immunofluorescence staining was conducted to evaluate the Apelin levels in the retinal tissue. The levels of GFAP, Collagen I and α-SMA in the retinal tissue of DM rats was visualised by the immunohistochemistry staining. The results showed that Apelin, GFAP, Collagen I andα-SMA expression was prominently elevated in the retinal tissue of DM rats and high glucose (HG)-exposed Müller cells. The results of Masson staining showed that the epiretinal fibrotic membrane was observed in DM rats. Apelin knockdown declined the GFAP, Collagen I andα-SMA levels. Besides, the protein levels of p-JAK2 and p-STAT3 were elevated in the HG-treated Müller cells, while Apelin knockdown declined them. FLLL32 treatment neutralised the role of Apelin. In conclusion, Apelin facilitated the fibrogenic activity of Müller cells through activating the JAK2/STAT3 signalling pathway, and thus inducing the retinal fibrosis in DR.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41103179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Circ_0007535 upregulates TGFBR1 to promote pulmonary fibrosis in TGF-β1-treated lung fibroblasts via sequestering miR-18a-5p. Circ_0007535通过螯合miR-18a-5p上调TGF-β1处理的肺成纤维细胞中的TGFBR1以促进肺纤维化。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-09-19 DOI: 10.1080/08916934.2023.2259128
Ming Shen, Xinyi Wang, Xiaofeng Chang, Zhun Li, Na Jiang, Zhuoyue Han, Xin Liu
{"title":"Circ_0007535 upregulates TGFBR1 to promote pulmonary fibrosis in TGF-β1-treated lung fibroblasts via sequestering miR-18a-5p.","authors":"Ming Shen,&nbsp;Xinyi Wang,&nbsp;Xiaofeng Chang,&nbsp;Zhun Li,&nbsp;Na Jiang,&nbsp;Zhuoyue Han,&nbsp;Xin Liu","doi":"10.1080/08916934.2023.2259128","DOIUrl":"10.1080/08916934.2023.2259128","url":null,"abstract":"<p><p>Circular RNAs (circRNAs) are functional molecules in all kinds of fibrosis diseases. The current study was performed for the exploration of circ_0007535 in pulmonary fibrosis. RNA levels for circ_0007535, miR-18a-5p, and transforming growth factor-β receptor 1 (TGFBR1) were assayed via a reverse transcription-quantitative polymerase chain reaction. Cell growth was determined by cell counting kit-8 assay for viability and ethynyl-2'-deoxyuridine assay for proliferation. Cell invasion and migration were examined by transwell assay and scratch assay. Western blot was performed for the detection of different proteins. Enzyme-linked immunosorbent assay was used to assess inflammatory response. The interaction analysis was conducted using dual-luciferase reporter assay, RNA immunoprecipitation assay, and biotin-coupled pull-down assay. Circ_0007535 was significantly upregulated by TGF-β1 in HFL1 cells. TGF-β1-induced proliferation, motility, ECM accumulation, and inflammatory reaction in HFL1 cells were alleviated by circ_0007535 knockdown. Circ_0007535 exhibited interaction with miR-18a-5p, and miR-18a-5p inhibition reversed all influences of circ_0007535 downregulation in TGF-β1-treated HFL1 cells. Circ_0007535 acted as a miR-18a-5p sponge to regulate the expression of downstream target TGFBR1. MiR-18a-5p induced TGFBR1 level inhibition to attenuate TGF-β1-mediated cell injury in HFL1 cells. This study evidenced that circ_0007535 facilitated TGF-β1-induced pulmonary fibrosis by depending on the absorption of miR-18a-5p to upregulate TGFBR1.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41105760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The emerging role of the hedgehog signaling pathway in immunity response and autoimmune diseases. 刺猬信号通路在免疫反应和自身免疫性疾病中的新作用。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-09-23 DOI: 10.1080/08916934.2023.2259127
Yunfei Li, Min Ming, Chunyang Li, Songpo Liu, Dan Zhang, Tao Song, Jun Tan, Jidong Zhang
{"title":"The emerging role of the hedgehog signaling pathway in immunity response and autoimmune diseases.","authors":"Yunfei Li,&nbsp;Min Ming,&nbsp;Chunyang Li,&nbsp;Songpo Liu,&nbsp;Dan Zhang,&nbsp;Tao Song,&nbsp;Jun Tan,&nbsp;Jidong Zhang","doi":"10.1080/08916934.2023.2259127","DOIUrl":"10.1080/08916934.2023.2259127","url":null,"abstract":"<p><p>The Hedgehog (Hh) family is a prototypical morphogen involved in embryonic patterning, multi-lineage differentiation, self-renewal, morphogenesis, and regeneration. There are studies that have demonstrated that the Hh signaling pathway differentiates developing T cells into MHC-restricted self-antigen tolerant T cells in a concentration-dependent manner in the thymus. Whereas Hh signaling pathway is not required in the differentiation of B cells but is indispensable in maintaining the regeneration of hematopoietic stem cells (HSCs) and the viability of germinal centers (GCs) B cells. The Hh signaling pathway exerts both positive and negative effects on immune responses, which involves activating human peripheral CD4<sup>+</sup> T cells, regulating the accumulation of natural killer T (NKT) cells, recruiting and activating macrophages, increasing CD4<sup>+</sup>Foxp3<sup>+</sup> regulatory T cells in the inflammation sites to sustain homeostasis. Hedgehog signaling is involved in the patterning of the embryo, as well as homeostasis of adult tissues. Therefore, this review aims to highlight evidence for Hh signaling in the differentiation, function of immune cells and autoimmune disease. Targeting Hh signaling promises to be a novel, alternative or adjunct approach to treating tumors and autoimmune diseases.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41095974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MiR-526b-3p enhances sensitivity of head and neck squamous cell carcinoma cells to radiotherapy via suppressing exosomal LAMP3-mediated autophagy. MiR-526b-3p通过抑制外泌体LAMP3介导的自噬增强头颈部鳞状细胞癌细胞对放疗的敏感性。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-09-23 DOI: 10.1080/08916934.2023.2259125
Huixiang Lu, Junnian Zhou, Xiaojun Li, Xiaoqin Han, Shuping Ma, Chunlan Feng
{"title":"MiR-526b-3p enhances sensitivity of head and neck squamous cell carcinoma cells to radiotherapy via suppressing exosomal LAMP3-mediated autophagy.","authors":"Huixiang Lu, Junnian Zhou, Xiaojun Li, Xiaoqin Han, Shuping Ma, Chunlan Feng","doi":"10.1080/08916934.2023.2259125","DOIUrl":"10.1080/08916934.2023.2259125","url":null,"abstract":"<p><p>Lysosomal associated membrane protein 3 (LAMP3) has been reported to be a tumour promoter in multiple cancer types by modulating tumour cell autophagy. However, the potential mechanism of LAMP3 in radio-resistance of head and neck squamous cell carcinoma (HNSCC) remains unknown. Therefore, our current study aims to detect the impacts of LAMP3 on the resistance of HNSCC cells to radiotherapy and meanwhile explore its functional mechanism. Through RT-Qpcr examination, LAMP3 expression was identified to be expressed at a significantly high level in irradiation-resistant HNSCC cell lines compared with irradiation-sensitive HNSCC cell lines. Functional assays including CCK-8, colony formation and Transwell assays demonstrated that LAMP3 enhanced the radio-resistance through inducing autophagy to promote HNSCC cell growth. Furthermore, irradiation-resistant HNSCC cells could transfer exosomal LAMP3 to elevate LAMP3 expression in irradiation-sensitive HNSCC cells. Mechanistically, microRNA (miRNA) miR-526b-3p could inhibit LAMP3 expression so as to strengthen sensitivity of HNSCC cells to radiotherapy. In a word, exosomal LAMP3 expression promoted radioresistance of HNSCC cells <i>via</i> inducing autophagy, while this effect could be suppressed by miR-526b-3p in a targeted manner.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41116036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CLDN1 silencing suppresses the proliferation and migration of airway smooth muscle cells by modulating MMP14. CLDN1沉默通过调节MMP14抑制气道平滑肌细胞的增殖和迁移。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-11-15 DOI: 10.1080/08916934.2023.2281223
Wei Li, Linyan Liu, Ming'ai Duanqing, Xiaoqing Xiong, Dejian Gan, Jin Yang, Mingya Wang, Min Zhou, Jun Yan
{"title":"CLDN1 silencing suppresses the proliferation and migration of airway smooth muscle cells by modulating MMP14.","authors":"Wei Li, Linyan Liu, Ming'ai Duanqing, Xiaoqing Xiong, Dejian Gan, Jin Yang, Mingya Wang, Min Zhou, Jun Yan","doi":"10.1080/08916934.2023.2281223","DOIUrl":"10.1080/08916934.2023.2281223","url":null,"abstract":"<p><p>Airway remodeling is an important pathologic factor in the progression of asthma. Abnormal proliferation and migration of airway smooth muscle cells (ASMCs) are important pathologic mechanisms in severe asthma. In the current study, claudin-1 (CLDN1) was identified as an asthma-related gene and was upregulated in ASMCs stimulated with platelet-derived growth factor BB (PDGF-BB). Cell counting kit-8 and EdU assays were used to evaluate cell proliferation, and transwell assay was carried out to analyze cell migration and invasion. The levels of inflammatory factors were detected using enzyme-linked immunosorbent assay. The results showed that CLDN1 knockdown inhibited the proliferation, migration, invasion, and inflammation of ASMCs treated with PDGF-BB, whereas overexpression of CLDN1 exhibited the opposite effects. Protein-protein interaction assay and co-immunoprecipitation revealed that CLDN1 directly interacted with matrix metalloproteinase 14 (MMP14). CLDN1 positively regulated MMP14 expression in asthma, and MMP14 overexpression reversed cell proliferation, migration, invasion, and inflammation induced by silenced CLDN1. Taken together, CLDN1 promotes PDGF-BB-induced cell proliferation, migration, invasion, and inflammatory responses of ASMCs by upregulating MMP14 expression, suggesting a potential role for CLDN1 in airway remodeling in asthma.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"107590113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isorhynchophylline attenuates proliferation and migration of synovial fibroblasts via the FOXC1/β-catenin axis. 异羟基喹啉通过FOXC1/β-catenin轴减弱滑膜成纤维细胞的增殖和迁移。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-12-06 DOI: 10.1080/08916934.2023.2289868
Yingyi Wu, Yan Bian, Jing Fei, Yang Huang
{"title":"Isorhynchophylline attenuates proliferation and migration of synovial fibroblasts via the FOXC1/β-catenin axis.","authors":"Yingyi Wu, Yan Bian, Jing Fei, Yang Huang","doi":"10.1080/08916934.2023.2289868","DOIUrl":"10.1080/08916934.2023.2289868","url":null,"abstract":"<p><p>Rheumatoid arthritis (RA) is a common type of chronic inflammatory disease. Elucidating the mechanism of fibroblast-like synovial (FLS) as a pathologic factor in RA may address the urgent medical requirement for the treatment of RA. Isorhynchophylline (IRN) is a tetracyclic hydroxyindole alkaloid isolated from uncinaria, which has multiple biological activities and affects the progression of osteoarthritis. However, the role of IRN in rheumatoid arthritis remains unclear. Herein, our study aimed to elucidate the potential effect of IRN on RA and reveal its mechanism. Human FLS cell line MH7A cells were stimulated with TNF-α for 24 h to construct a cell model. CCK-8, Edu, wound healing, as well as transwell assays were conducted to detect the effects of IRN on cell proliferation and motility. ELISA and Immunoblot assays were further performed to detect the production of pro-inflammatory factors and the expression levels of MMPs. Immunoblot and Immunostaining assays were conducted to uncover the mechanism. ELISA, H&E staining, and Immunoblot assays were used to confirm the effects of IRN on RA in a CIA rat model. We revealed that IRN restrained TNF-α-stimulated MH7A cell proliferation and motility. In addition, IRN blocked the production of pro-inflammatory factors and MMPs in TNF-α-stimulated-MH7A cells. We further found that IRN restrained FOXC1/β-catenin axis, and improved MH7A cell proliferation as well as migration <i>via</i> the FOXC1/β-catenin axis. IRN restores CIA by inhibiting pro-inflammatory cytokines in synovial tissues. In summary, IRN attenuates proliferation and migration of FLS in RA <i>via</i> the FOXC1 mediated β-catenin axis.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138497713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patients with dermatomyositis shared partially similar transcriptome signature with COVID-19 infection. 皮肌炎患者与COVID-19感染具有部分相似的转录组特征。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 DOI: 10.1080/08916934.2023.2220984
Yiying Yang, Jie Song, Hongjun Zhao, Huali Zhang, Muyao Guo
{"title":"Patients with dermatomyositis shared partially similar transcriptome signature with COVID-19 infection.","authors":"Yiying Yang, Jie Song, Hongjun Zhao, Huali Zhang, Muyao Guo","doi":"10.1080/08916934.2023.2220984","DOIUrl":"10.1080/08916934.2023.2220984","url":null,"abstract":"<p><p>Dermatomyositis (DM) is an autoimmune disease that primarily affects the skin and skeletal muscle. Virus infection and type I interferon-related signaling pathways play an important role in the pathogenesis of dermatomyositis. In this study, we found that the skin of patients with DM and the skin of patients with COVID-19 have similar transcriptional profiles, and identified key genes involved in dermatomyositis based on bioinformatics analysis. These hub-genes might be served as potential biomarkers for the early diagnosis and therapy of DM, including <i>MX1, ISG15, IFIT3, IFIT1, RSAD2, IFIT2, IFI6, XAF1, IRF9, MX2</i>.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9739483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potential significance of changes in serum levels of IL-17, TNF-α and DKK-1 in the progression of the rheumatoid arthritis. 血清IL-17、TNF-α和DKK-1水平变化在类风湿性关节炎进展中的潜在意义。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-11-01 DOI: 10.1080/08916934.2023.2276068
Qunxia Wang, Yanzhao Liu, Jiazhen Wu, Simei Chen, Tingting Hu, Yuhan Liu, Xu Li, Xiaohang Li, Yang Wu, Jianlin Yu, Tingting Zeng, Yi Luo, Xiaoyan Hu, Li-Ming Tan
{"title":"Potential significance of changes in serum levels of IL-17, TNF-α and DKK-1 in the progression of the rheumatoid arthritis.","authors":"Qunxia Wang, Yanzhao Liu, Jiazhen Wu, Simei Chen, Tingting Hu, Yuhan Liu, Xu Li, Xiaohang Li, Yang Wu, Jianlin Yu, Tingting Zeng, Yi Luo, Xiaoyan Hu, Li-Ming Tan","doi":"10.1080/08916934.2023.2276068","DOIUrl":"10.1080/08916934.2023.2276068","url":null,"abstract":"<p><p>To detect the value of serum interleukin-17 (IL-17), tumour necrosis factor-α (TNF-α), and Dickkopf-1 (DKK-1) in rheumatoid arthritis (RA) at different disease stages. 141 RA patients were randomly obtained and diagnosed in a large tertiary first-class hospital in Jiangxi Province from November 2021 to January 2022. RA was divided into 38 low activity and remission phase (low remission patients), 72 moderate activity patients, 41 high activity patients, according to the disease activity score 28 (DAS28) of RA and 70 healthy controls. IL-17 and TNF-α in serum detected by flow cytometry; DKK-1by ELISA; rheumatoid factor (RF) and C-reactive protein (CRP) by rate scattering turbidimetry; erythrocyte sedimentation rate (ESR) by Widmanstat method; anti-cyclic citrullinated polypeptide antibody (Anti-CCP) by chemiluminescence. The changes among the groups were statistically analysed and evaluated their diagnostic value. ①Anti-CCP, CRP, and ESR levels in the moderate-to-high activity group were higher than controls, while IL-17, TNF-α, and DKK-1levels higher than low remission group, moderate activity group and controls (<i>p</i> < 0.05). ②IL-17, TNF-α and DKK-1 were positively correlated with RA disease activity, with the correlations of IL-17, TNF-α and DKK-1 all over 0.5 (<i>p</i> < 0.05). ③The ROC curve showed that among all indices the AUC of DKK-1 was the largest, 0. 922, and has the highest sensitivity and negative predictive value for RA, 0.965 and 0.953, respectively. The specificity and positive predictive value of TNF-α is highest, 0.918 and 0.921, respectively, combined them had the highest predictive value in moderate-to-high activity RA, with AUC of 0.968, and had the highest sensitivity of 0.965. The IL-17, TNF-α and DKK-1 levels were elevated in RA and positively correlated with disease activity, involved in the Wnt signalling pathway of inflammatory and joint destructive effects, combining them to monitor the RA disease process and biologically treat the cytokines in the pathogenesis of RA were valuable.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71420268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SMURF1 activates the cGAS/STING/IFN-1 signal axis by mediating YY1 ubiquitination to accelerate the progression of lupus nephritis. SMURF1通过介导YY1泛素化激活cGAS/STING/IFN-1信号轴,加速狼疮性肾炎的进展。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-11-22 DOI: 10.1080/08916934.2023.2281235
Xiaoyan Li, Sisi Tao, Zhiquan Xu, Yi Ren, Wei Xiang, Xiaojie He
{"title":"SMURF1 activates the cGAS/STING/IFN-1 signal axis by mediating YY1 ubiquitination to accelerate the progression of lupus nephritis.","authors":"Xiaoyan Li, Sisi Tao, Zhiquan Xu, Yi Ren, Wei Xiang, Xiaojie He","doi":"10.1080/08916934.2023.2281235","DOIUrl":"10.1080/08916934.2023.2281235","url":null,"abstract":"<p><p>Aggravated endoplasmic reticulum stress (ERS) and apoptosis in podocytes play an important role in lupus nephritis (LN) progression, but its mechanism is still unclear. Herein, the role of SMURF1 in regulating podocytes apoptosis and ERS during LN progression were investigated. MRL/lpr mice was used as LN model <i>in vivo</i>. HE staining was performed to analyze histopathological changes. Mouse podocytes (MPC5 cells) were treated with serum IgG from LN patients (LN-IgG) to construct LN model <i>in vitro</i>. CCK8 assay was adopted to determine the viability. Cell apoptosis was measured using flow cytometry and TUNEL staining. The interactions between SMURF1, YY1 and cGAS were analyzed using ChIP and/or dual-luciferase reporter gene and/or Co-IP assays. YY1 ubiquitination was analyzed by ubiquitination analysis. Our results found that SMURF1, cGAS and STING mRNA levels were markedly increased in serum samples of LN patients, while YY1 was downregulated. YY1 upregulation reduced LN-IgG-induced ERS and apoptosis in podocytes. Moreover, SMURF1 upregulation reduced YY1 protein stability and expression by ubiquitinating YY1 in podocytes. Rescue studies revealed that YY1 knockdown abrogated the inhibition of SMURF1 downregulation on LN-IgG-induced ERS and apoptosis in podocytes. It was also turned out that YY1 alleviated podocytes injury in LN by transcriptional inhibition cGAS/STING/IFN-1 signal axis. Finally, SMURF1 knockdown inhibited LN progression <i>in vivo</i>. In short, SMURF1 upregulation activated the cGAS/STING/IFN-1 signal axis by regulating YY1 ubiquitination to facilitate apoptosis in podocytes during LN progression.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138294559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CircFLNA/miR-214 modulates regulatory T cells by regulating PD-1 in acute lung injury induced by sepsis. 在败血症诱导的急性肺损伤中,CircFLNA/miR-214通过调节PD-1来调节调节性T细胞。
IF 3.5 4区 医学
Autoimmunity Pub Date : 2023-12-01 Epub Date: 2023-09-19 DOI: 10.1080/08916934.2023.2259131
Jian Zhong, Wei Zhang, Leiyun Zhang, Jieying Li, Lingkai Kang, Xiaoyue Li
{"title":"CircFLNA/miR-214 modulates regulatory T cells by regulating PD-1 in acute lung injury induced by sepsis.","authors":"Jian Zhong,&nbsp;Wei Zhang,&nbsp;Leiyun Zhang,&nbsp;Jieying Li,&nbsp;Lingkai Kang,&nbsp;Xiaoyue Li","doi":"10.1080/08916934.2023.2259131","DOIUrl":"10.1080/08916934.2023.2259131","url":null,"abstract":"<p><p>Sepsis-induced acute respiratory distress syndrome (ARDS) remains a major complication of death from bacterial infection. Regulatory T cells (Tregs) are important regulators in addressing lung injury. Considering the extensive research of circular RNAs (circRNAs), the role of circRNA in Treg modulation during ARDS remains unclear. In this study, patients with sepsis-induced ARDS along with non-ARDS controls were obtained, and bronchoalveolar lavage fluid (BALF) was collected as clinical samples. Additionally, cecal ligation and puncture (CLP) was performed to construct a septic ARDS model, and lung tissues as well as peripheral blood were collected. mRNA expressions were measured by RT-qPCR. ELISA was carried out to measure the concentration of inflammatory factors. A combination of online bioinformatics, dual-luciferase reporter, and RND pull-down assays was performed to verify interactions between microRNA (miRNA) and circRNA/mRNA. Tregs were measured by flow cytometry. Our data suggested that circFLNA was aberrantly elevated in ARDS, and depletion of circFLNA upregulated CD4<sup>+</sup>CD25<sup>+</sup>Foxp3<sup>+</sup> Tregs and decreased inflammatory response. Additionally, miR-214-5p which binds with circFLNA, reversed circFLNA-induced effects in ARDS. Programmed cell death protein 1 (PD-1) is a downstream target gene of miR-214-5p, and abrogated the effects of miR-214-5p on regulating CD4<sup>+</sup>CD25<sup>+</sup>Foxp3<sub>+</sub> Tregs and inflammatory response. In a word, circFLNA/miR-214-5p/PD-1 signaling is a novel pathway that modulates Tregs in ARDS.</p>","PeriodicalId":8688,"journal":{"name":"Autoimmunity","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41096515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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