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Pan W, Tsokos GC. Reverse aging to treat lupus. Eur J Immunol 2024:e2451274. [PMID: 39031517 DOI: 10.1002/eji.202451274] [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: 06/09/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 07/22/2024]
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disease with multifaceted pathogenetic processes, including abnormalities of T-cell subset distribution and function. Accumulation of senescent CD4+ T cells has been found to contribute to the development of the disease. In this issue, Jiang et al. provide compelling evidence that links an expanded pool of CD4+CD57+ senescent T cells in patients with SLE to disease activity favored by interleukin-15. Importantly, treatment of lupus-prone mice with a senolytic drug resulted in decreased autoimmune pathology. The findings of this study suggest possible novel therapeutics to treat patients with SLE.
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Affiliation(s)
- Wenliang Pan
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - George C Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
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Jiang J, Yang M, Zhu H, Long D, He Z, Liu J, He L, Tan Y, Akbar AN, Reddy V, Zhao M, Long H, Wu H, Lu Q. CD4 +CD57 + senescent T cells as promoters of systemic lupus erythematosus pathogenesis and the therapeutic potential of senolytic BCL-2 inhibitor. Eur J Immunol 2024; 54:e2350603. [PMID: 38752316 DOI: 10.1002/eji.202350603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 07/07/2024]
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by persistent activation of immune cells and overproduction of autoantibodies. The accumulation of senescent T and B cells has been observed in SLE and other immune-mediated diseases. However, the exact mechanistic pathways contributing to this process in SLE remain incompletely understood. In this study, we found that in SLE patients: (1) the frequency of CD4+CD57+ senescent T cells was significantly elevated and positively correlated with disease activity; (2) the expression levels of B-lymphoma-2 (BCL-2) family and interferon-induced genes (ISGs) were significantly upregulated; and (3) in vitro, the cytokine IL-15 stimulation increased the frequency of senescent CD4+ T cells and upregulated the expression of BCL-2 family and ISGs. Further, treatment with ABT-263 (a senolytic BCL-2 inhibitor) in MRL/lpr mice resulted in decreased: (1) frequency of CD4+CD44hiCD62L-PD-1+CD153+ senescent CD4+ T cells; (2) frequency of CD19+CD11c+T-bet+ age-related B cells; (3) level of serum antinuclear antibody; (4) proteinuria; (5) frequency of Tfh cells; and (6) renal histopathological abnormalities. Collectively, these results indicated a dominant role for CD4+CD57+ senescent CD4+ T cells in the pathogenesis of SLE and senolytic BCL-2 inhibitor ABT-263 may be the potential treatment in ameliorating lupus phenotypes.
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Affiliation(s)
- Jiao Jiang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, Jiang Su, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, Jiang Su, China
| | - Ming Yang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Huan Zhu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Di Long
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhenghao He
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Juan Liu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Liting He
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yixin Tan
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Arne N Akbar
- Division of Medicine, University College London, London, United Kingdom
| | - Venkat Reddy
- Division of Medicine, University College London, London, United Kingdom
| | - Ming Zhao
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, Jiang Su, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, Jiang Su, China
| | - Hai Long
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Haijing Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qianjin Lu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, Jiang Su, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, Jiang Su, China
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Hu W, Liu Y, Lian C, Lu H. Genetic insight into putative causes of xanthelasma palpebrarum: a Mendelian randomization study. Front Immunol 2024; 15:1347112. [PMID: 38601164 PMCID: PMC11004296 DOI: 10.3389/fimmu.2024.1347112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Xanthelasma palpebrarum (XP) is the most common form of cutaneous xanthoma, with a prevalence of 1.1%~4.4% in the population. However, the cause of XP remains largely unknown. In the present study, we used Mendelian randomization to assess the genetic association between plasma lipids, metabolic traits, and circulating protein with XP, leveraging summary statistics from large genome-wide association studies (GWAS). Genetically predicted plasma cholesterol and LDL-C, but not HDL-C or triglyceride, were significantly associated with XP. Metabolic traits, including BMI, fasting glucose, type 2 diabetes, systolic and diastolic blood pressure, were not significantly associated with XP. Furthermore, we found genetically predicted 12 circulating proteins were associated with XP, including FN1, NTM, FCN2, GOLM1, ICAM5, PDE5A, C5, CLEC11A, CXCL1, CCL2, CCL11, CCL13. In conclusion, this study identified plasma cholesterol, LDL-C, and 12 circulating proteins to be putative causal factors for XP, highlighting the role of plasma cholesterol and inflammatory response in XP development.
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Affiliation(s)
- Wenting Hu
- Department of Dermatology, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, China
| | - Yaozhong Liu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI, United States
| | - Cuihong Lian
- Department of Dermatology, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, China
| | - Haocheng Lu
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China
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Jiang Y, Chen H, Lin J, Pan J, Shen Y, Li Q. Anti-prolactin treatment alleviates lupus conditions by regulating the JAK2-STAT3 pathway. Clin Exp Pharmacol Physiol 2023; 50:936-943. [PMID: 37727880 DOI: 10.1111/1440-1681.13818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 09/21/2023]
Abstract
OBJECTIVES We previously revealed the role of prolactin (PRL) in antibody production and disease activity in patients with systemic lupus erythematosus. In this study, we sought to determine whether inhibition of PRL could improve lupus-like disease in MRL/lpr mice. METHODS The expression levels of PRL in various cell types of lupus patients were measured by flow cytometry. The effects of anti-PRL on animal survival, renal histopathology, creatinine, proteinuria, anti-dsDNA antibody, cytokine production, splenomegaly and lymphadenopathy were assessed. The effect of anti-PRL on the Jak2-Stat3 signalling pathway was detected by western blotting. RESULTS Prolactin was upregulated in B cells, neutrophils, CD4+ T cells, and monocytes isolated from patients with lupus. Furthermore, inhibition of PRL by anti-PRL treatment around the time of onset prolonged the survival of MRL/lpr mice, significantly reduced anti-dsDNA antibody production, and alleviated symptoms of lupus nephritis, splenomegaly, and lymphadenopathy. In addition, anti-PRL-treated mice showed a decrease in the levels of pathogenic cytokines such as IL-21 and IL-6. Furthermore, mechanistically, anti-PRL treatment significantly reduced the levels of p-Jak2 and p-Stat3 in MRL/lpr mice. CONCLUSIONS In summary, these data suggest that PRL inhibition alleviates lupus-like disease in MRL/lpr mice by modulating the Jak2-Stat3 signalling cascade. More importantly, our results imply the potential of PRL inhibitors and may provide a novel therapeutic approach for lupus.
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Affiliation(s)
- Ying Jiang
- Department of Dermatology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Huyan Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, People's Republic of China
| | - Jinran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, People's Republic of China
| | - Jiewen Pan
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, People's Republic of China
| | - Yanyun Shen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, People's Republic of China
| | - Qiao Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, People's Republic of China
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Wang T, Wei L, Meng S, Song W, Chen Y, Li H, Zhao Q, Jiang Z, Liu D, Ren H, Hong X. Coordinated Priming of NKG2D Pathway by IL-15 Enhanced Functional Properties of Cytotoxic CD4 +CD28 - T Cells Expanded in Systemic Lupus Erythematosus. Inflammation 2023; 46:1587-1601. [PMID: 37415045 PMCID: PMC10567942 DOI: 10.1007/s10753-023-01860-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/27/2023] [Accepted: 06/16/2023] [Indexed: 07/08/2023]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disorder, and numerous aberrations of T cell responses have been reported and were implicated in its pathophysiology. Recently, CD4-positive T cells with cytotoxic potential were shown to be involved in autoimmune disease progression and tissue damage. However, the effector functions of this cell type and their potential molecular mechanisms in SLE patients remain to be elucidated. In this study, we find that cytotoxic CD4+CD28- T cells are expanded in SLE patients with flow cytometry analysis, and the percentage of CD4+CD28- T cells positively correlates with the Systemic Lupus International Collaborating Clinics/ACR Damage Index (SDI). Furthermore, our study suggests that interleukin-15 (IL-15) promotes the expansion, proliferation, and cytotoxic function of CD4+CD28- T cells in SLE patients through activation of the Janus kinase3-STAT5 pathway. Further study indicates that IL-15 not only mediates the upregulation of NKG2D, but also cooperates with the NKG2D pathway to regulate the activation of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) pathway. Together, our study demonstrated that proinflammatory and cytolytic CD4+CD28- T cells expand in SLE patients. The pathogenic potential of these CD4+CD28- T cells is driven by the coupling of the IL-15/IL-15R signaling pathway and the NKG2D/DAP10 signaling pathway, which may open new avenues for therapeutic intervention to prevent SLE progression.
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Affiliation(s)
- Tingting Wang
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, 510632, China
| | - Laiyou Wei
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen People's Hospital, The Frist Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Shuhui Meng
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
| | - Wencong Song
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
| | - Yulan Chen
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
| | - Heng Li
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, 510632, China
| | - Qianqian Zhao
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, 510632, China
| | - Zhenyou Jiang
- Department of Microbiology and Immunology, College of Basic Medicine and Public Hygiene, Jinan University, Guangzhou, 510632, China
| | - Dongzhou Liu
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen People's Hospital, The Frist Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Huan Ren
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xiaoping Hong
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, China.
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China.
- Shenzhen People's Hospital, The Frist Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China.
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Badeński A, Badeńska M, Świętochowska E, Janek A, Gliwińska A, Morawiec-Knysak A, Szczepańska M. Assessment of Interleukin-15 (IL-15) Concentration in Children with Idiopathic Nephrotic Syndrome. Int J Mol Sci 2023; 24:ijms24086993. [PMID: 37108157 PMCID: PMC10139059 DOI: 10.3390/ijms24086993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/06/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Idiopathic nephrotic syndrome (INS) is a chronic glomerular disease in children, characterized by severe proteinuria, hypoalbuminemia, and/or presence of edema and hyperlipidemia. The pathogenesis, however, has not been yet established. The clinical course of the disease is characterized by frequent relapses. Interleukin-15 (IL-15) is a pro-inflammatory cytokine, that apart from its involvement in the immune system, was found to be playing a vital role in various cells' functioning, including renal tissue. It is desirable to look for new predictors of INS. Our study aimed to evaluate IL-15 as a potential marker in the early diagnosis of the disease. The cohort participating in the study consisted of patients hospitalized in Clinical Hospital No. 1 in Zabrze, from December 2019 to December 2021, including study group with INS (n = 30) and control group (n = 44). Results: The concentration of IL-15 in both serum and urine was significantly elevated in patients with INS, compared to healthy controls. The cytokine might serve as a marker of the disease, however, further research on larger study groups is needed.
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Affiliation(s)
- Andrzej Badeński
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
| | - Marta Badeńska
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
| | - Elżbieta Świętochowska
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Jordana 19, 41-808 Zabrze-Rokitnica, Poland
| | - Artur Janek
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
| | - Aleksandra Gliwińska
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
| | - Aurelia Morawiec-Knysak
- Department of Pediatric Nephrology with Dialysis Division for Children, Public Clinical Hospital No. 1 in Zabrze, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
| | - Maria Szczepańska
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. 3 Maja 13/15, 41-800 Zabrze, Poland
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A Moneim NH, Hosny MM, Omar HH, Abdelnaby MM, Fouad MM, Abd El-Waheed WO, Elmedany SH, Zaki HM. Relative CTLA-4, PTPN-22, and interleukin 37 mRNA expressions in patients with lupus nephritis. REUMATOLOGIA CLINICA 2023; 19:180-187. [PMID: 37061279 DOI: 10.1016/j.reumae.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/10/2022] [Indexed: 04/17/2023]
Abstract
OBJECTIVES Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by T-cell immune-dysregulation and loss of tolerance to self-antigens. CTLA-4 and PTPN-22 are involved in the inhibition of T-lymphocytes activation. IL-37 is an anti-inflammatory cytokine that suppresses innate immunity. The relative expression of CTLA-4, IL-37 and PTPN-22 were evaluated as negative regulators of immune response in SLE patients, lupus nephritis (LN) and disease activity. METHODS Real-Time PCR was performed to determine relative CTLA-4, IL-37, and PTPN-22 mRNA expressions in fifty-eight SLE patients, who were divided into two groups: 29 SLE patients without nephritis and 29 patients with LN, versus fifty controls. RESULTS There was a significantly high-expression of CTLA-4 and IL-37 genes in SLE patients compared to controls (p=0.005; 0.018 respectively). There was no difference in relative PTPN-22 mRNA expression between the SLE patients and controls. Relative CTLA-4 mRNA expression decreased in LN patients (p=0.044), however, relative IL-37 mRNA over-expressed in LN patients (p=0.001) compared to those without LN. There was a significant over-expression of relative IL-37 andPTPN-22 mRNA in active SLE patients. But, there was a non-significant difference in CTLA-4 expression with disease activity. Regression analysis revealed patients with relative IL-37 mRNA over-expression had two times more to develop lupus nephritis (OR=1.906, 95% CI=1.218-2.983, p=0.005). CONCLUSIONS Relative IL-37mRNA expression was elevated in SLE patients and associated with renal involvement and disease activity. It could be considered as a new promising predicting tool for LN. Relative PTPN-22 mRNA expression was correlated with disease activity only in SLE patients.
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Affiliation(s)
- Nermeen Hassan A Moneim
- Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Marwa Mohamed Hosny
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt; Oncology Diagnostic Unit Lab, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Hanan Hassan Omar
- Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Mai Mohamed Abdelnaby
- Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Marwa Mohamed Fouad
- Department of Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Waleed Omar Abd El-Waheed
- Department of Internal Medicine, Nephrology Unit, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Samah Hamdy Elmedany
- Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Heba Mohamed Zaki
- Department of Internal Medicine, Nephrology Unit, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Gamal-Eldeen AM, Fahmy CA, Raafat BM, Althobaiti F, Bassyouni IH, Talaat RM. Association of Circulating Levels of Hypoxia-Inducible Factor-1α and miR-210 with Photosensitivity in Systemic Lupus Erythematosus Patients. Curr Mol Med 2023; 23:185-192. [PMID: 35034594 DOI: 10.2174/1566524022666220114145220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/11/2021] [Accepted: 11/25/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND miR-210, a key hypoxamiR, regulates hypoxia and inflammation-linked hypoxia. Systemic lupus erythematosus (SLE), a chronic autoimmune disease, is responsible for many pathological disorders, including photosensitivity. OBJECTIVE This study aimed to find the correlation between circulating miR-210/HIF-1α levels and photosensitivity in SLE patients and other SLE-associated pathological complications in a single-center case-control study. METHODS The study population comprised 104 SLE Egyptian patients with photosensitivity, 32 SLE patients without photosensitivity, and 32 healthy subjects. SLE activity was assessed for all patients using the SLE Disease Activity Index (SLEDAI). Clinical complications/manifestations and hematological/serological analyses were recorded. HIF-α concentration was investigated by ELISA, and miR-210 expression was analyzed by qRT-PCR. RESULTS The results revealed that circulating miR-210 was significantly increased in the SLE/photosensitivity group versus the SLE and control groups. The additional occurrence of malar rash, oral ulcers, renal disorders, or hypertension resulted in a higher expression of miR-210. SLEDAI activity status showed no effect on miR-210. Erythrocyte sedimentation rate, white blood cells, hemoglobin, platelets, patient age, and disease duration were positively correlated with circulatory miR-210. HIF-α concentration was significantly induced in the SLE/photosensitivity group versus the SLE and control groups. In SLE/photosensitivity, the presence of renal disorders and hypertension resulted in the highest HIF-α concentrations. A strong positive correlation was recorded between HIF-α concentration and circulatory miR-210 in SLE/photosensitivity patients (r = 0.886). CONCLUSION The dysregulation of circulating miR-210/HIF-1α levels in SLE/ photosensitivity patients is controlled by the presence of additional pathological complications, and results suggest that the hypoxia pathway might interact positively with the pathogenesis and disease progression of SLE.
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Affiliation(s)
- Amira M Gamal-Eldeen
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- High Altitude Research Center, Prince Sultan Medical Complex, Al- Hawiyah, Taif University, Taif, Saudi Arabia
| | - Cinderella A Fahmy
- Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, 33 El Buhouth St. Dokki, Cairo, 12622, Egypt
- Biochemistry Department, National Research Centre, 33 El Buhouth St. Dokki, Cairo, 12622, Egypt
| | - Bassem M Raafat
- Radiological Sciences Department, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Fayez Althobaiti
- High Altitude Research Center, Prince Sultan Medical Complex, Al- Hawiyah, Taif University, Taif, Saudi Arabia
- Biotechnology Department, Faculty of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Iman H Bassyouni
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, El-Kasr El-Aini Hospital, Cairo 12613, Egypt
| | - Roba M Talaat
- Molecular Biology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City University, Egypt
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Gamal-Eldeen AM, Fahmy CA, Raafat BM, Althobaiti F, Bassyouni IH, Talaat RM. Circulating Levels of Hypoxia-regulating MicroRNAs in Systemic Lupus Erythematosus Patients with Hemolytic Anemia. Curr Med Sci 2022; 42:1231-1239. [PMID: 36469203 DOI: 10.1007/s11596-022-2644-y] [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: 12/01/2021] [Accepted: 02/26/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE MicroRNAs are fine regulators for gene expression during the post-transcriptional stage in many autoimmune diseases. HypoxamiRs (miR-210 and miR-21) play an important role in hypoxia and in inflammation-associated hypoxia. Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune disease that would potentiate many pathological complications, including hemolytic anemia. This study aimed to investigate the role of hypoxamiRs in SLE/hemolytic anemia patients. METHODS This work was designed to analyze the circulating levels of↱ the miR-210 and miR-21 expressions and hypoxia-inducible factor-1α (HIF-α) in SLE/hemolytic anemia patients. SLE activity was evaluated for all patients by SLE Disease Activity Index (SLEDAI). Clinical manifestations/complications and serological/hematological investigations were reported. HIF-α concentration was assayed by ELISA and expression of miR-21 and miR-210 was analyzed by qRT-PCR. RESULTS The results indicated that the fold change of the miR-210/miR-21 expressions in plasma was significantly elevated in SLE/hemolytic anemia patients. A strong positive correlation between the miR-210 and miR-21 expression levels was also recorded. Among the associated-disease complications, hypertension, arthritis, oral ulcers, and serositis were associated with a high circulating miR-210 expression, while the occurrence of renal disorders was associated with the increased miR-21 expression. Furthermore, the HIF-α level was remarkably elevated in SLE/hemolytic anemia patients. A high positive correlation was recorded between the HIF-α concentration and miR-210/miR-21 expression levels. The occurrence of oral ulcers, arthritis, and hypertension was associated with the increased HIF-α concentration. On the other hand, SLEDAI and white blood cell count were positively correlated with miR-21/ miR-210. The erythrocyte sedimentation rate was positively correlated with miR-21. CONCLUSION The dysregulation of the circulating miR-210/miR-210/HIF-1α levels in SLE/hemolytic anemia patients advocated that the hypoxia pathway might have an essential role in the pathogenesis and complications of these diseases.
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Affiliation(s)
- Amira M Gamal-Eldeen
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taif University, Taif, 21944, Saudi Arabia. .,High Altitude Research Center, Prince Sultan Medical Complex, Al-Hawiyah, Taif University, Taif, 21944, Saudi Arabia.
| | - Cinderella A Fahmy
- Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, Cairo, 12622, Egypt.,Biochemistry Department, National Research Centre, Cairo, 12622, Egypt
| | - Bassem M Raafat
- Radiological Sciences Department, College of Applied Medical Sciences, Taif University, Taif, 21944, Saudi Arabia
| | - Fayez Althobaiti
- High Altitude Research Center, Prince Sultan Medical Complex, Al-Hawiyah, Taif University, Taif, 21944, Saudi Arabia.,Biotechnology Department, Faculty of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Iman H Bassyouni
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, El-Kasr El-Aini Hospital, Cairo, 12613, Egypt
| | - Roba M Talaat
- Molecular Biology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City University, Sadat City, 32897, Egypt
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10
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Hsu CY, Chiu WC, Huang YL, Su YJ. Identify differential inflammatory cellular and serology pathways between children and adult patients in the lupus registry. Medicine (Baltimore) 2022; 101:e29916. [PMID: 35960068 PMCID: PMC9371509 DOI: 10.1097/md.0000000000029916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Age variances in systemic lupus erythematosus (SLE) may reflect different patterns and consequences. Monocyte differentiation is critical, and cytokine and chemokine milieu may be associated with long term outcome and treatment responses. This study aims to evaluate the inflammatory cellular and serology pathways associated with age in our lupus registry. METHODS We included patients with SLE and divided them into 2 groups according to age, ≤18 or >18 years old. We performed flow cytometry analysis to define the peripheral blood monocyte differentiation pattern and phenotypes and used the multiplex method to detect cytokine and chemokine panels. The results were then compared between the 2 subgroups. RESULTS In total, 47 SLE patients were included in this study. Of those, 23 patients were 18 years old or younger, and 24 patients were over the age of 18 years old. An increased distribution of circulating Type 2b macrophage (M2b) subsets was found in patients over 18 years old (P < 0.01), and we found the Type 1 macrophage (M1) to demonstrate a marked increase in those patients ≤18 years old (P = .05). Eotaxin values were significantly higher in patients >18 years old (P = .03), and Macrophage Inflammatory Protein (MIP)-1alpha, MIP-1beta, Interleukine (IL)-1Ra, Interferon (IFN)-alpha2, IL-12, IL-13, IL-17A, IL-1beta, IL-2, IL-4, IL-5, IL-7, IL-9, Monocyte Chemoattractant Protein (MCP)-3, Transforming Growth Factor (TGF)-alpha, and Tumor necrosis factor (TNF)-beta were significantly higher in patients ≤18 years old (all P < .05). CONCLUSIONS We found significant M2b polarization in adult SLE patients, and several cytokines and chemokines were significantly higher in SLE patients ≤ 18 years old. Peripheral blood mononuclear cell differentiation and cytokine milieu could represent composite harm from both Type 2 helper T cells (Th2) and Type 17 helper T cells (Th17) pathways and may thus be a potential therapeutic target in younger SLE patients.
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Affiliation(s)
- Chung-Yuan Hsu
- Departments of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wen-Chan Chiu
- Departments of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Ling Huang
- Departments of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Jih Su
- Departments of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
- *Correspondence: Yu-Jih Su, Departments of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, No. 123, Ta Pei Road, Niao Sung Hsiang, Kaohsiung City 833, Taiwan (e-mail: )
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11
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Triglycerides as Biomarker for Predicting Systemic Lupus Erythematosus Related Kidney Injury of Negative Proteinuria. Biomolecules 2022; 12:biom12070945. [PMID: 35883502 PMCID: PMC9312825 DOI: 10.3390/biom12070945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/26/2022] [Accepted: 07/01/2022] [Indexed: 11/27/2022] Open
Abstract
Fewer biomarkers can be used to predict systemic lupus erythematosus (SLE) related kidney injury. This paper presents an apriori algorithm of association rules to mine the predictive biomarkers for SLE-related kidney injury of negative proteinuria. An apriori algorithm of association rules was employed to identify biomarkers, and logistic regression analysis and spearman correlation analysis were used to evaluate the correlation between triglycerides and SLE-related kidney injury of negative proteinuria. Triglycerides were mined out by the apriori algorithm of association rules. The level of triglycerides was significantly higher, and it was an independent risk factor for SLE-related kidney injury. In the high-triglycerides group, the number of patients with SLE-related kidney injury, SLEDAI-2K, urine P-CAST, the level of blood urea nitrogen, serum creatinine, and proteinuria were increased. Triglycerides level was positively correlated with proteinuria and P-CAST and negatively correlated with albumin and IgG. The area under the ROC curve of triglycerides and triglycerides combined proteinuria was 0.72 and 0.82, respectively. Significantly, 50% of SLE-related kidney injuries of negative proteinuria could be identified by high triglycerides levels. High triglycerides level was found at the time of onset of kidney injury, and it was opposite to glomerular filtration rate. Triglycerides may be a potential marker for predicting SLE-related kidney injury, especially in SLE-related kidney injury of negative proteinuria. Triglycerides combined proteinuria could predict SLE-related kidney injury effectively.
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12
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Chen H, Zhang N, Li C, Zhang H. Effects of Astragalus membranaceus on systemic lupus erythematosus in a mouse model of pregnancy. Immun Inflamm Dis 2022; 10:e624. [PMID: 35634952 PMCID: PMC9092001 DOI: 10.1002/iid3.624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/16/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND This study used astragalus membranaceus (AM) to treat systemic lupus erythematosus (SLE) model mice during pregnancy, aiming to explore the role of AM in Helper T cell 17 (Th17) differentiation and SLE during pregnancy. METHODS We used lipopolysaccharide to constructed the SLE mouse model. AM decoction given by intragastric administration lasted from the eighth week of the mouse age until the mouse was killed. We estimated the messenger RNA levels of IL-17a and Rorc, counted the Th17 cell number and examined the levels of cytokines including interleukin (IL)-12, tumor necrosis factor α, interferon gamma, IL-17A in mouse serum. Periodic acid-Schiff staining and renal glomerular/tubulointerstitial (TI) score were used to evaluate the progression of lupus nephritis (LN). RESULTS AM treatment improved the conception rate and increased the number and average weight of fetuses in SLE mice. It significantly decreased the urinary albumin/creatinine ratios and reduced the glomerular scores and TI scores in the pregnant SLE mice. AM gavage significantly decreased the weight of spleen, mesenteric lymph node, total splenocytes and T cells, and the expression of proinflammatory factors. Furthermore, AM treatment reduced the ratio of Th17 cells and the expression levels of RORγt and IL-17A. CONCLUSION AM significantly improved pregnancy outcomes and inhibited lupus nephritis during pregnancy in SLE mice.
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Affiliation(s)
- Hong‐Qing Chen
- Department of ObstetricsHengshui Fourth People's HospitalHengshuiHebeiChina
| | - Na Zhang
- Department of Clinical PharmacyThe Fourth Hospital of ShijiazhuangShijiazhuangHebeiChina
| | - Cai‐Xia Li
- The Fourth Hospital of ShijiazhuangShijiazhuangHebeiChina
| | - Hong‐Xia Zhang
- Department of PharmacyThe Fourth Hospital of ShijiazhuangShijiazhuangHebeiChina
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13
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Tan G, Baby B, Zhou Y, Wu T. Emerging Molecular Markers Towards Potential Diagnostic Panels for Lupus. Front Immunol 2022; 12:808839. [PMID: 35095896 PMCID: PMC8792845 DOI: 10.3389/fimmu.2021.808839] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/22/2021] [Indexed: 11/13/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a multifactorial autoimmune disease which can affect various tissues and organs, posing significant challenges for clinical diagnosis and treatment. The etiology of SLE is highly complex with contributions from environmental factors, stochastic factors as well as genetic susceptibility. The current criteria for diagnosing SLE is based primarily on a combination of clinical presentations and traditional lab testing. However, these tests have suboptimal sensitivity and specificity. They are unable to indicate disease cause or guide physicians in decision-making for treatment. Therefore, there is an urgent need to develop a more accurate and robust tool for effective clinical management and drug development in lupus patients. It is fortunate that the emerging Omics have empowered scientists in the discovery and identification of potential novel biomarkers of SLE, especially the markers from blood, urine, cerebrospinal fluids (CSF), and other bodily fluids. However, many of these markers have not been carefully validated for clinical use. In addition, it is apparent that individual biomarkers lack sensitivity or specificity. This review summarizes the sensitivity, specificity and diagnostic value of emerging biomarkers from recent studies, and discusses the potential of these markers in the development of biomarker panel based diagnostics or disease monitoring system in SLE.
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Affiliation(s)
- Gongjun Tan
- Department of Clinical Laboratory, Zhuhai Maternal and Child Healthcare Hospital, Zhuhai, China
| | - Binila Baby
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Yuqiu Zhou
- Department of Clinical Laboratory, Zhuhai Maternal and Child Healthcare Hospital, Zhuhai, China
| | - Tianfu Wu
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
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14
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Van Laecke S, Van Damme K, Dendooven A. Immunosenescence: an unexplored role in glomerulonephritis. Clin Transl Immunology 2022; 11:e1427. [PMID: 36420421 PMCID: PMC9676375 DOI: 10.1002/cti2.1427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 11/22/2022] Open
Abstract
Immunosenescence is a natural ageing phenomenon with alterations in innate and especially adaptive immunity and contributes to reduced antimicrobial defence and chronic low‐grade inflammation. This is mostly reflected by an increase in organ‐directed and/or circulating reactive and cytolytic terminally differentiated T cells that have lost their expression of the costimulatory receptor CD28. Apart from being induced by a genetic predisposition, ageing or viral infections (particularly cytomegalovirus infection), immunosenescence is accelerated in many inflammatory diseases and uraemia. This translates into an enhancement of vascular inflammation and cardiovascular disease varying from endothelial dysfunction to plaque rupture. Emerging data point to a mechanistic role of CD28null T cells in glomerulonephritis, where they initiate and propagate local inflammation in concordance with dendritic cells and macrophages. They are suitably equipped to escape immunological dampening by the absence of homing to lymph nodes, anti‐apoptotic properties and resistance to suppression by regulatory T cells. Early accumulation of senescent CD28null T cells precedes glomerular or vascular injury, and targeting these cells could open avenues for early treatment interventions that aim at abrogating a detrimental vicious cycle.
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Affiliation(s)
| | - Karel Van Damme
- Renal Division Ghent University Hospital Ghent Belgium
- Laboratory of Immunoregulation and Mucosal Immunology, Center for Inflammation Research VIB Center for Inflammation Research Ghent Belgium
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15
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Ghafouri-Fard S, Shahir M, Taheri M, Salimi A. A review on the role of chemokines in the pathogenesis of systemic lupus erythematosus. Cytokine 2021; 146:155640. [PMID: 34252872 DOI: 10.1016/j.cyto.2021.155640] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 12/14/2022]
Abstract
Chemokines are a group of cytokines with low molecular weight that principally direct chemotaxis of target cells. They have prominent roles in the pathogenesis systemic lupus erythematosus (SLE) and related complications particularly lupus nephritis. These molecules not only induce autoimmune responses in the organs of patients, but also can amplify the induced inflammatory responses. Although chemokine family has at least 46 identified members, the role of a number of these molecules have been more clarified in SLE patients or animal models of this disorder. In the current paper, we review the role of CCL2, CCL3, CCL4, CCL11, CCL20, CXCL1, CXCL2, CXCL8, CXCL10, CXCL12 and CXCL13 in the pathogenesis of SLE.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehri Shahir
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Alireza Salimi
- Critical Care Quality Improvement Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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16
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Park J, Jang W, Park HS, Park KH, Kwok SK, Park SH, Oh EJ. Cytokine clusters as potential diagnostic markers of disease activity and renal involvement in systemic lupus erythematosus. J Int Med Res 2021; 48:300060520926882. [PMID: 32489126 PMCID: PMC7271280 DOI: 10.1177/0300060520926882] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE To describe interactions among cytokines and to identify subgroups of systemic lupus erythematosus (SLE) patients based on cytokine levels using principal component analysis and cluster analysis. METHODS Levels of 12 cytokines were measured using sensitive multiplex bead assays and associations with SLE features including disease activity and renal involvement were assessed. RESULTS In a group of 203 SLE patients, strong correlations were observed between interleukin (IL)6 and interferon (IFN)γ levels (r = 0.624), IL17 and IFNγ levels (r = 0.768), and macrophage inflammatory protein (MIP)1α and MIP1β levels (r = 0.675). Cluster analysis revealed two distinct patient groups characterized by high levels of IL8, MIP1α, and MIP1β (group 1) or of IL2, IL6, IL10, IL12, IFNγ, and tumor necrosis factor α (group 2). Active disease was more common in group 1 (49/88, 55.7%) than in group 2 (40/115, 34.8%). More patients in group 2 had renal involvement (42/115, 36.5%) than in group 1 (22/88, 25%). CONCLUSIONS Assessment of cytokine profiles can identify distinct SLE patient subgroups and aid in understanding clinical heterogeneity and immunological phenotypes.
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Affiliation(s)
- Joonhong Park
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Woori Jang
- Department of Laboratory Medicine, Inha University School of Medicine, Incheon, Korea
| | - Hye Sun Park
- Department of Biomedical Science & Health Sciences, Graduate School, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki Hyun Park
- Department of Biomedical Science & Health Sciences, Graduate School, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Ki Kwok
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung-Hwan Park
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun-Jee Oh
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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17
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McGowan J, Peter C, Kim J, Popli S, Veerman B, Saul-McBeth J, Conti H, Pruett-Miller SM, Chattopadhyay S, Chakravarti R. 14-3-3ζ-TRAF5 axis governs interleukin-17A signaling. Proc Natl Acad Sci U S A 2020; 117:25008-25017. [PMID: 32968020 PMCID: PMC7547158 DOI: 10.1073/pnas.2008214117] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
IL-17A is a therapeutic target in many autoimmune diseases. Most nonhematopoietic cells express IL-17A receptors and respond to extracellular IL-17A by inducing proinflammatory cytokines. The IL-17A signal transduction triggers two broad, TRAF6- and TRAF5-dependent, intracellular signaling pathways to produce representative cytokines (IL-6) and chemokines (CXCL-1), respectively. Our limited understanding of the cross-talk between these two branches has generated a crucial gap of knowledge, leading to therapeutics indiscriminately blocking IL-17A and global inhibition of its target genes. In previous work, we discovered an elevated expression of 14-3-3 proteins in inflammatory aortic disease, a rare human autoimmune disorder with increased levels of IL-17A. Here we report that 14-3-3ζ is essential for IL-17 signaling by differentially regulating the signal-induced IL-6 and CXCL-1. Using genetically manipulated human and mouse cells, and ex vivo and in vivo rat models, we uncovered a function of 14-3-3ζ. As a part of the molecular mechanism, we show that 14-3-3ζ interacts with several TRAF proteins; in particular, its interaction with TRAF5 and TRAF6 is increased in the presence of IL-17A. In contrast to TRAF6, we found TRAF5 to be an endogenous suppressor of IL-17A-induced IL-6 production, an effect countered by 14-3-3ζ. Furthermore, we observed that 14-3-3ζ interaction with TRAF proteins is required for the IL-17A-induced IL-6 levels. Together, our results show that 14-3-3ζ is an essential component of IL-17A signaling and IL-6 production, an effect that is suppressed by TRAF5. To the best of our knowledge, this report of the 14-3-3ζ-TRAF5 axis, which differentially regulates IL-17A-induced IL-6 and CXCL-1 production, is unique.
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Affiliation(s)
- Jenna McGowan
- Department of Physiology & Pharmacology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Cara Peter
- Department of Physiology & Pharmacology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Joshua Kim
- Department of Physiology & Pharmacology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Sonam Popli
- Department of Medical Microbiology & Immunology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Brent Veerman
- Department of Physiology & Pharmacology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Jessica Saul-McBeth
- Department of Biological Sciences, College of Natural Sciences & Mathematics, University of Toledo, Toledo, OH 43614
| | - Heather Conti
- Department of Biological Sciences, College of Natural Sciences & Mathematics, University of Toledo, Toledo, OH 43614
| | - Shondra M Pruett-Miller
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Saurabh Chattopadhyay
- Department of Medical Microbiology & Immunology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614
| | - Ritu Chakravarti
- Department of Physiology & Pharmacology, College of Medicine & Life Sciences, University of Toledo, Toledo, OH 43614;
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18
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Elkoumi MA, Allah MA, Mohamed FY, Boraey NF, Abdellatif SH, Shehab MM, Sherif AH, Akeel NE, Saleh RM, Elshreif AM, Abdelrahman HM, Soliman AA, Emam AA, Youssef MA, Fahmy DS, Sallam MM, Nawara AM, Elgohary EA, Ismael A, El-Kaffas SM, Sobeih AA, Ibrahim LM, Ibrahim MA, Abdou AM, Yousry SM, Osman SF, El-Deeb FM, Elhewala AA, Hafez SF, Waked NM, Elbasyouni HA, Fouad RA, Zeidan NM, Nashat M, Farghaly MA. Association of interleukin-17A gene polymorphisms and susceptibility to systemic lupus erythematosus in Egyptian children and adolescents: a multi-centre study. Lupus 2020; 29:767-775. [PMID: 32380889 DOI: 10.1177/0961203320922305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Recently, the interleukin-17A (IL-17A) gene has emerged as a potential candidate gene for autoimmune disorders, including systemic lupus erythematosus (SLE). OBJECTIVES This study aimed to investigate whether IL-17A polymorphisms at rs2275913 G/A, rs8193036 C/T and rs3748067 C/T could be susceptibility markers for juvenile-onset SLE (JSLE) and lupus nephritis (LN) in Egyptian children and adolescents. METHODS In this multi-centre study, we genotyped 320 patients diagnosed with JSLE and 320 matched control children for three IL-17A polymorphisms at rs2275913 G/A, rs8193036 C/T and rs3748067 C/T using TaqMan probe-based real-time polymerase chain reaction. Meanwhile, IL-17A serum levels were assessed using ELISA. RESULTS The IL-17 rs2275913 A/A genotype and A allele were more represented in JSLE patients compared to the control group (21% vs. 7%, odds ratio (OR) = 3.8, 95% confidence interval (CI) 1.78-5.5, p = 0.001, pBonf = 0.003 for the A/A genotype; 37% vs. 29%, OR = 1.4, 95% CI 1.11-1.8, p = 0.003, pBonf = 0.009 for the A allele. No significant difference was found for IL-17 rs8193036 and rs3748067 single nucleotide polymorphisms (SNPs) in genotype distribution or allele frequencies (p>0.05). Patients carrying the IL-17 rs2275913 A/A genotype and A allele were more likely to develop LN (OR = 5.64, 95% CI 2.39-13.77, pBonf = 0.001 for the A/A genotype; OR = 2.73, 95% CI 1.84-4.07, pBonf = 0.02 for the A allele). CONCLUSION The IL-17 rs2275913 A allele and A/A genotype were associated with high IL-17 serum levels and may contribute to susceptibility to JSLE and the development of LN in Egyptian children and adolescents. However, no significant association was evident between the studied IL-17A SNPs and other clinical phenotypes, disease activity scores or laboratory profile of JSLE.
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Affiliation(s)
- Mohamed A Elkoumi
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Mayy An Allah
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Faisal Y Mohamed
- Department of Paediatrics, Faculty of Medicine, Ain-Shams University, Egypt
| | - Naglaa F Boraey
- Department of Paediatrics, Faculty of Medicine, Sohag University, Egypt
| | | | - Mohamed Mm Shehab
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Ahmed H Sherif
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Nagwa E Akeel
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Rabab M Saleh
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Anas M Elshreif
- Department of Paediatrics, Faculty of Medicine, Al Azhar University, Egypt
| | - Hind M Abdelrahman
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Attia A Soliman
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Ahmed A Emam
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Manal Aa Youssef
- Department of Rheumatology, Faculty of Medicine, Zagazig University, Egypt
| | - Dalia S Fahmy
- Department of Rheumatology, Faculty of Medicine, Zagazig University, Egypt
| | - Mohammad M Sallam
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - Abdalla M Nawara
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - Elsayed A Elgohary
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - Ali Ismael
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | | | - Alaa A Sobeih
- Department of Paediatrics, Faculty of Medicine, Cairo University, Egypt
| | - Lamya M Ibrahim
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, Egypt
| | - Mohamed Am Ibrahim
- Department of Clinical Pathology, Faculty of Medicine, Sohag University, Egypt
| | - Adel M Abdou
- Department of Clinical Pathology, Faculty of Medicine, Al Azhar University, Egypt
| | - Sherif M Yousry
- Department of Clinical pathology, Faculty of Medicine, Cairo University, Egypt
| | - Sherif F Osman
- Department of Radiology, Texas Tech University Health Sciences Center El Paso, USA
| | - Fatma M El-Deeb
- Department of Dermatology, Faculty of Medicine, Zagazig University, Egypt
| | - Ahmed A Elhewala
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Sahbaa Fm Hafez
- Department of Paediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - Nevin M Waked
- Department of Paediatrics, Faculty of Medicine, October 6 University, Egypt
| | - Hany Aa Elbasyouni
- Department of Internal Medicine, Faculty of Medicine, Menoufia University, Egypt
| | - Rania A Fouad
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Egypt
| | - Nancy Ms Zeidan
- Department of Paediatrics, Faculty of Medicine, Cairo University, Egypt
| | - Mohamed Nashat
- Department of Paediatrics, Faculty of Medicine, Aswan University, Egypt
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19
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Carranza-León DA, Oeser A, Marton A, Wang P, Gore JC, Titze J, Stein CM, Chung CP, Ormseth MJ. Tissue sodium content in patients with systemic lupus erythematosus: association with disease activity and markers of inflammation. Lupus 2020; 29:455-462. [PMID: 32070186 DOI: 10.1177/0961203320908934] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Sodium (Na+) is stored in the skin and muscle and plays an important role in immune regulation. In animal models, increased tissue Na+ is associated with activation of the immune system, and high salt intake exacerbates autoimmune disease and worsens hypertension. However, there is no information about tissue Na+ and human autoimmune disease. We hypothesized that muscle and skin Na+ content is (a) higher in patients with systemic lupus erythematosus (SLE) than in control subjects, and (b) associated with blood pressure, disease activity, and inflammation markers (interleukin (IL)-6, IL-10 and IL-17 A) in SLE. METHODS Lower-leg skin and muscle Na+ content was measured in 23 patients with SLE and in 28 control subjects using 23Na+ magnetic resonance imaging. Demographic and clinical information was collected from interviews and chart review, and blood pressure was measured. Disease activity was assessed using the SLE Disease Activity Index (SLEDAI). Plasma inflammation markers were measured by multiplex immunoassay. RESULTS Muscle Na+ content was higher in patients with SLE (18.8 (16.7-18.3) mmol/L) than in control subjects (15.8 (14.7-18.3) mmol/L; p < 0.001). Skin Na+ content was also higher in SLE patients than in controls, but this difference was not statistically significant. Among patients with SLE, muscle Na+ was associated with SLEDAI and higher concentrations of IL-10 after adjusting for age, race, and sex. Skin Na+ was significantly associated with systolic blood pressure, but this was attenuated after covariate adjustment. CONCLUSION Patients with SLE had higher muscle Na+ content than control subjects. In patients with SLE, higher muscle Na+ content was associated with higher disease activity and IL-10 concentrations.
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Affiliation(s)
| | - A Oeser
- Department of Medicine, Vanderbilt University Medical Center, USA
| | - A Marton
- Department of Medicine, Duke-NUS Medical School, Singapore
| | - P Wang
- Department of Radiology, Vanderbilt University Medical Center, USA
| | - J C Gore
- Department of Radiology, Vanderbilt University Medical Center, USA
| | - J Titze
- Department of Medicine, Duke-NUS Medical School, Singapore
| | - C M Stein
- Department of Medicine, Vanderbilt University Medical Center, USA.,Department of Pharmacology, Vanderbilt University Medical Center, USA
| | - C P Chung
- Department of Medicine, Vanderbilt University Medical Center, USA.,Tennessee Valley Healthcare System, US Department of Veterans Affairs, USA
| | - M J Ormseth
- Department of Medicine, Vanderbilt University Medical Center, USA.,Tennessee Valley Healthcare System, US Department of Veterans Affairs, USA
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Cao HY, Li D, Wang YP, Lu HX, Sun J, Li HB. The protection of NF-κB inhibition on kidney injury of systemic lupus erythematosus mice may be correlated with lncRNA TUG1. Kaohsiung J Med Sci 2020; 36:354-362. [PMID: 31930775 DOI: 10.1002/kjm2.12183] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/27/2019] [Indexed: 12/29/2022] Open
Abstract
We aimed to know the effect of nuclear factor-kappa B (NF-κB) inhibition on the kidney injury of systemic lupus erythematosus (SLE) mice. Pristane-induced SLE mice were treated with pyrrolidine dithiocarbamate (PDTC, 50 or 100 mg/kg), a NF-κB inhibitor. Histopathological changes were observed by hematoxylin & eosin, Masson and periodic schiff-methenamine stainings. Long noncoding RNA Taurine upregulated gene 1 (LncRNA TUG1) was measured by real-time reverse transcription PCR, NF-κB p65 expression by western blotting, levels of inflammatory cytokines, antinuclear antibodies (ANA), and antidouble stranded DNA (anti-dsDNA) by enzyme-linked immunosorbent assay, and the deposition of IgG and C3 by immunofluorescence. The kidney of SLE mice exhibited interstitial inflammatory cell infiltration, interstitial fibrous proliferation, glomerular mesangial proliferation, and crescent formation, which was mitigated after PDTC administration. The levels of BUN, Cr, ANA, and anti-dsDNA and the pro-inflammatory factors in SLE mice were increased with obvious deposition of IgG and C3, but they were also reversed by PDTC. Furthermore, the NF-κB p65 expression in the nucleus in the SLE mice was decreased with the up-regulation of TUG1 expression and NF-κB p65 expression in the cytoplasm after PDTC treatment. Correlation analysis revealed the negative correlation between the TUG1 expression and NF-κB p65 in the nucleus in the kidney tissues. NF-κB inhibition with PDTC protected against the kidney injury of pristine-induced SLE mice possibly via up-regulating lncRNA TUG1, and further clinical studies are needed to clarify whether NF-κB inhibition may be a therapeutic modality for the kidney injury of SLE.
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Affiliation(s)
- Hai-Yu Cao
- Department of Dermatology, The First Hospital of Shijiazhuang City, Shijiazhuang, Hebei Province, China
| | - Dong Li
- Department of Dermatology, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yun-Peng Wang
- Department of General Medicine, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Hui-Xiu Lu
- Department of Dermatology, The First Hospital of Shijiazhuang City, Shijiazhuang, Hebei Province, China
| | - Jing Sun
- Department of Dermatology, The First Hospital of Shijiazhuang City, Shijiazhuang, Hebei Province, China
| | - Hai-Bin Li
- Department of General Medicine, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
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Yang YX, Shen HH, Cao F, Xie LY, Zhu GL, Sam NB, Wang DG, Pan HF. Therapeutic potential of enhancer of zeste homolog 2 in autoimmune diseases. Expert Opin Ther Targets 2019; 23:1015-1030. [PMID: 31747802 DOI: 10.1080/14728222.2019.1696309] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Introduction: Autoimmune diseases (ADs) are idiopathic and heterogeneous disorders with contentious pathophysiology. Great strides have been made in epigenetics and its involvement in ADs. Zeste homolog 2 (EZH2) has sparked extensive interest because of its pleiotropic roles in distinct pathologic contexts.Areas covered: This review summarizes the epigenetic functions and the biological significance of EZH2 in the etiology of rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), type 1 diabetes (T1D), inflammatory bowel disease (IBD), multiple sclerosis (MS), and systemic sclerosis (SSc). A brief recapitulation of the therapeutic potential of EZH2 targeting is provided.Expert opinion: There are questions marks and controversies surrounding the feasibility and safety of EZH2 targeting; it is recommended in RA and SLE, but queried in T1D, IBD, MS, and SSc. Future work should focus on contrast studies, systematic analyses and preclinical studies with optimizing methodologies. Selective research studies conducted in a stage-dependent manner are necessary because of the relapsing-remitting clinical paradigms.
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Affiliation(s)
- Yue-Xin Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Hui-Hui Shen
- Department of Clinical Medicine, The second School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Fan Cao
- Department of Clinical Medicine, The second School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Liang-Yu Xie
- Department of Clinical Medicine, The second School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Guang-Lin Zhu
- Department of Clinical Medicine, The second School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Napoleon Bellua Sam
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, China
| | - De-Guang Wang
- Department of Nephrology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 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, Anhui, China
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Rohraff DM, He Y, Farkash EA, Schonfeld M, Tsou PS, Sawalha AH. Inhibition of EZH2 Ameliorates Lupus-Like Disease in MRL/lpr Mice. Arthritis Rheumatol 2019; 71:1681-1690. [PMID: 31106974 PMCID: PMC6764871 DOI: 10.1002/art.40931] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 05/14/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE We previously identified a role for EZH2, a transcriptional regulator in inducing proinflammatory epigenetic changes in lupus CD4+ T cells. This study was undertaken to investigate whether inhibiting EZH2 ameliorates lupus-like disease in MRL/lpr mice. METHODS EZH2 expression levels in multiple cell types in lupus patients were evaluated using flow cytometry and messenger RNA expression data. Inhibition of EZH2 in MRL/lpr mice was achieved by intraperitoneal 3'-deazaneplanocin (DZNep) administration using a preventative and a therapeutic treatment model. Effects of DZNep on animal survival, anti-double-stranded DNA (anti-dsDNA) antibody production, proteinuria, renal histopathology, cytokine production, and T and B cell numbers and percentages were assessed. RESULTS EZH2 expression levels were increased in whole blood, neutrophils, monocytes, B cells, and CD4+ T cells in lupus patients. In MRL/lpr mice, inhibition of EZH2 by DZNep was confirmed by significant reduction of EZH2 and H3K27me3 in splenocytes. Inhibiting EZH2 with DZNep treatment before or after disease onset improved survival and significantly reduced anti-dsDNA antibody production. DZNep-treated mice displayed a significant reduction in renal involvement, splenomegaly, and lymphadenopathy. Lymphoproliferation and numbers of double-negative T cells were significantly reduced in DZNep-treated mice. Concentrations of circulating cytokines and chemokines, including tumor necrosis factor, interferon-γ, CCL2, RANTES/CCL5, interleukin-10 (IL-10), keratinocyte-derived chemokine/CXCL1, IL-12, IL-12p40, and CCL4/macrophage inflammatory protein 1β, were decreased in DZNep-treated mice. CONCLUSION EZH2 is up-regulated in multiple cell types in lupus patients. Therapeutic inhibition of EZH2 abrogates lupus-like disease in MRL/lpr mice, suggesting that EZH2 inhibitors may be repurposed as a novel therapeutic option for lupus patients.
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Affiliation(s)
- Dallas M. Rohraff
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Ye He
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Evan A. Farkash
- Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Mark Schonfeld
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Pei-Suen Tsou
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Amr H. Sawalha
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
- Division of Rheumatology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA
- Division of Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
- Lupus Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, PA
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Integrated analysis of microRNA regulation and its interaction with mechanisms of epigenetic regulation in the etiology of systemic lupus erythematosus. PLoS One 2019; 14:e0218116. [PMID: 31237906 PMCID: PMC6592600 DOI: 10.1371/journal.pone.0218116] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 05/27/2019] [Indexed: 12/24/2022] Open
Abstract
The aim of this study was to identity in silico the relationships among microRNAs (miRNAs) and genes encoding transcription factors, ubiquitylation, DNA methylation, and histone modifications in systemic lupus erythematosus (SLE). To identify miRNA dysregulation in SLE, we used miR2Disease and PhenomiR for information about miRNAs exhibiting differential regulation in disease and other biological processes, and HMDD for information about experimentally supported human miRNA–disease association data from genetics, epigenetics, circulating miRNAs, and miRNA–target interactions. This information was incorporated into the miRNA analysis. High-throughput sequencing revealed circulating miRNAs associated with kidney damage in patients with SLE. As the main finding of our in silico analysis of miRNAs differentially expressed in SLE and their interactions with disease-susceptibility genes, post-translational modifications, and transcription factors; we highlight 226 miRNAs associated with genes and processes. Moreover, we highlight that alterations of miRNAs such as hsa-miR-30a-5p, hsa-miR-16-5p, hsa-miR-142-5p, and hsa-miR-324-3p are most commonly associated with post-translational modifications. In addition, altered miRNAs that are most frequently associated with susceptibility-related genes are hsa-miR-16-5p, hsa-miR-374a-5p, hsa-miR-34a-5p, hsa-miR-31-5p, and hsa-miR-1-3p.
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Miller S, Tsou PS, Coit P, Gensterblum-Miller E, Renauer P, Rohraff DM, Kilian NC, Schonfeld M, Sawalha AH. Hypomethylation of STAT1 and HLA-DRB1 is associated with type-I interferon-dependent HLA-DRB1 expression in lupus CD8+ T cells. Ann Rheum Dis 2019; 78:519-528. [PMID: 30674474 DOI: 10.1136/annrheumdis-2018-214323] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/14/2018] [Accepted: 12/17/2018] [Indexed: 01/14/2023]
Abstract
OBJECTIVE We examined genome-wide DNA methylation changes in CD8+ T cells from patients with lupus and controls and investigated the functional relevance of some of these changes in lupus. METHODS Genome-wide DNA methylation of lupus and age, sex and ethnicity-matched control CD8+ T cells was measured using the Infinium MethylationEPIC arrays. Measurement of relevant cell subsets was performed via flow cytometry. Gene expression was quantified by qPCR. Inhibiting STAT1 and CIITA was performed using fludarabine and CIITA siRNA, respectively. RESULTS Lupus CD8+ T cells had 188 hypomethylated CpG sites compared with healthy matched controls. Among the most hypomethylated were sites associated with HLA-DRB1. Genes involved in the type-I interferon response, including STAT1, were also found to be hypomethylated. IFNα upregulated HLA-DRB1 expression on lupus but not control CD8+ T cells. Lupus and control CD8+ T cells significantly increased STAT1 mRNA levels after treatment with IFNα. The expression of CIITA, a key interferon/STAT1 dependent MHC-class II regulator, is induced by IFNα in lupus CD8+ T cells, but not healthy controls. CIITA knockdown and STAT1 inhibition experiments revealed that HLA-DRB1 expression in lupus CD8+ T cells is dependent on CIITA and STAT1 signalling. Coincubation of naïve CD4+ T cells with IFNα-treated CD8+ T cells led to CD4+ T cell activation, determined by increased expression of CD69 and cytokine production, in patients with lupus but not in healthy controls. This can be blocked by neutralising antibodies targeting HLA-DR. CONCLUSIONS Lupus CD8+ T cells are epigenetically primed to respond to type-I interferon. We describe an HLA-DRB1+ CD8+ T cell subset that can be induced by IFNα in patients with lupus. A possible pathogenic role for CD8+ T cells in lupus that is dependent on a high type-I interferon environment and epigenetic priming warrants further characterisation.
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Affiliation(s)
- Shaylynn Miller
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Pei-Suen Tsou
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Patrick Coit
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Paul Renauer
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Dallas M Rohraff
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Nathan C Kilian
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Mark Schonfeld
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Amr H Sawalha
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA .,Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
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