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Ke PF, Zhu YT, Cao SL, Wang Y, Wu ST, He QQ, Liang LF, Li JC. Identification of pattern recognition receptor genes in peripheral blood mononuclear cells and monocytes as biomarkers for the diagnosis of lupus nephritis. Clin Chim Acta 2024; 554:117785. [PMID: 38228224 DOI: 10.1016/j.cca.2024.117785] [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: 12/20/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/18/2024]
Abstract
BACKGROUND The study aimed to investigate the diagnostic value of lupus-related pattern recognition receptors (PRRs) genes in peripheral blood mononuclear cells (PBMCs) and monocytes (MONs) for lupus nephritis (LN). METHODS PBMCs were isolated from a cohort with 37 LN patients and 39 healthy controls (HCs), and MONs were derived from another cohort with 70 LN patients and 66 HCs. Q-PCR was used to measure the mRNA levels of CGAS, IFNB1, AIM2, IL1Β, NLRC4, NLRP3, NLRP12 and ZBP1 in the PBMCs and MONs. The Mann-Whitney U test was used to compare the data in LN patients and HCs. Eleven GEO datasets of SLE/LN were used to perform differentially expressed genes (DEGs) analysis to these PRR genes. Receiver operating characteristic (ROC) curve analysis was employed to assess the performance of individual genes or the disease prediction model established by combining multiple genes in LN diagnosis. Spearman correlation method was done to analyze the correlation between these PRRs and other clinical characteristics. RESULTS The mRNA levels of five genes (AIM2, NLRC4, IL1B, NLRP12 and ZBP1) in PBMCs, and seven genes (CGAS, IFNB1, AIM2, IL1B, NLRP3, NLRP12 and ZBP1) in MONs of LN patients were significantly higher than those of HCs (P < 0.05). DEGs analysis based on the GEO datasets showed that ZBP1, AIM2 and IL1B were significantly increased in several datasets. The ROC curve analysis indicated that the area under curve (AUC) of the LN prediction models derived from PBMCs or MONs were 0.82 or 0.91 respectively. In addition, the expression levels of these PRRs were correlated with other clinical features in LN patients, including Anti-Sm, ESR, serum Cr, and C3. CONCLUSION Our study suggests that these lupus-related PRRs might be served as potential biomarkers of LN.
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Affiliation(s)
- Pei-Feng Ke
- Medical Research Center, Yue Bei People's Hospital, Shantou University Medical College, Shaoguan 512025, China; Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Yan-Ting Zhu
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Song-Ling Cao
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Yi Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China; Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Shi-Ting Wu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Qian-Qian He
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Li-Fang Liang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Ji-Cheng Li
- Medical Research Center, Yue Bei People's Hospital, Shantou University Medical College, Shaoguan 512025, China; Institute of Cell Biology, Zhejiang University, Hangzhou 310031, China.
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Wang Y, Gao Y, Su X, Hao Y, Zhang Y, Yang R. LNCGM1082 in Gut Epithelial Cells Promotes Expulsion of Infected Epithelial Cells and Release of IL-18. Immunohorizons 2024; 8:35-46. [PMID: 38189743 PMCID: PMC10835649 DOI: 10.4049/immunohorizons.2300110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 01/09/2024] Open
Abstract
Inflammasome NLRC4 (NLR family CARD domain containing 4) can protect mucosal barriers such as intestine from invading bacterial pathogens. However, it was incompletely clear how NLRC4 was activated in intestinal epithelial cells. In this study, we demonstrated that LNCGM1082 could mediate the activation of NLRC4 via binding NLRC4 with protein kinase C (PKC)δ. LNCGM1082 knockout (KO) mice had reduced resistance against Salmonella Typhimurium infection, as well as impaired expulsion of infected gut epithelial cells and release of IL-18 upon exposure to S. Typhimurium. Similar to NLRC4 KO and PKCδ knockdown gut organoids, there also was impaired expulsion of gut epithelial cells and release of IL-18 in LNCGM1082 KO gut organoids. Furthermore, there also was reduced activation of caspase-1 and caspase-8 in these LNCGM1082 KO, NLRC4 KO, and PKCδ knockdown gut organoids upon exposure to S. Typhimurium. Our results show that LNCGM1082 in the ICEs plays a critical role in mediating activation of NLRC4 through binding NLRC4 and PKCδ and promoting expulsion of infected epithelial cells and release of IL-18 upon exposure to bacteria such as S. Typhimurium.
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Affiliation(s)
- Ya Wang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yunhuan Gao
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Xiaomin Su
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yang Hao
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yuan Zhang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Rongcun Yang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
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Gao Y, Yang Y, Wei J, Yue J, Wang Y, Zhang Q, Jin M, Wang R, Yang X, Zhang J, Liu X, Liu L, Zhang Y, Yang R. LNCGM1082-mediated NLRC4 activation drives resistance to bacterial infection. Cell Mol Immunol 2023; 20:475-488. [PMID: 36941318 PMCID: PMC10203293 DOI: 10.1038/s41423-023-00995-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 02/23/2023] [Indexed: 03/23/2023] Open
Abstract
The activation of NLRC4 is a major host response against intracellular bacteria infection. However, NLRC4 activation after a host senses diverse stimuli is difficult to understand. Here, we found that the lncRNA LNCGM1082 plays a critical role in the activation of NLRC4. LNCGM1082 in macrophages affects the maturation of interleukin (IL)-1β and pyroptotic cell death only after exposure to an NLRC4 ligand. Similar to NLRC4-/- mice, LNCGM1082-/- mice were highly sensitive to Salmonella Typhimurium (S. T) infection. LNCGM1082 deficiency in mouse or human macrophages inhibited IL-1β maturation and pyroptosis. Mechanistically, LNCGM1082 induced the binding of PKCδ with NLRC4 in both mice and humans. In contrast, NLRC4 did not bind PKCδ in LNCGM1082-/- macrophages. The activity of the lncRNA LNCGM1082 induced by S. T may be mediated through TLR5 in the macrophages of both mice and humans. In summary, our data indicate that TLR5-mediated LNCGM1082 activity can promote the binding of PKCδ with NLRC4 to activate NLRC4 and induce resistance to bacterial infection.
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Affiliation(s)
- Yunhuan Gao
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Yazheng Yang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Jianmei Wei
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Jianmei Yue
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Ya Wang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Qianjing Zhang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Mengli Jin
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Rong Wang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Xiaorong Yang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Junqi Zhang
- College of Life Science, Nankai University, Tianjin, 300121, China
| | - Xinqi Liu
- College of Life Science, Nankai University, Tianjin, 300121, China
| | - Lin Liu
- China National Center for Bioinformation & Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Yuan Zhang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China
| | - Rongcun Yang
- Department of Immunology, Nankai University School of Medicine and Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, 300071, China.
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
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Abstract
Cerebrovascular accidents (CVAs) or strokes are part of the common thrombotic manifestations of Systemic Lupus Erythematosus (SLEs) and Antiphospholipid syndrome (APS). Such neurological thrombotic events tend to occur in patients with SLE at a higher frequency when Antiphospholipid antibodies (aPLs) are present, and tend to involve the large cerebral vessels. The mechanism of stroke in SLE can be driven by complement deposition and neuroinflammation involving the blood-brain barrier although the traditional cardiovascular risk factors remain major contributing factors. Primary prevention with antiplatelet therapy and disease activity controlling agent is the basis of the management. Anticoagulation via warfarin had been a tool for secondary prevention, especially in stroke recurrence, although the debate continues regarding the target international normalized ratio (INR). The presence of either of the three criteria antiphospholipid antibodies (aPLs) and certain non-criteria aPL can be an independent risk factor for stroke. The exact mechanism for the involvement of the large cerebral arteries, especially in lupus anticoagulant (LAC) positive cases, is still to be deciphered. The data on the role of non-criteria aPL remain very limited and heterogenous, but IgA antibodies against β2GPI and the D4/5 subunit as well as aPS/PT IgG might have a contribution. Anticoagulation with warfarin has been recommended although the optimal dosing or the utility of combination with antiplatelet agents is still unknown. Minimal data is available for direct oral anticoagulants (DOACs).
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Affiliation(s)
- Georges El Hasbani
- Department of Internal Medicine, St Vincent's Medical Center, Bridgeport, CT, USA
| | - Imad Uthman
- Department of Internal Medicine, 11238American University of Beirut Medical Center, Beirut, Lebanon
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Liu Y, Tao X, Tao J. Strategies of Targeting Inflammasome in the Treatment of Systemic Lupus Erythematosus. Front Immunol 2022; 13:894847. [PMID: 35664004 PMCID: PMC9157639 DOI: 10.3389/fimmu.2022.894847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multiple organ dysfunction resulting from the production of multiple autoantibodies and adaptive immune system abnormalities involving T and B lymphocytes. In recent years, inflammasomes have been recognized as an important component of innate immunity and have attracted increasing attention because of their pathogenic role in SLE. In short, inflammasomes regulate the abnormal differentiation of immune cells, modulate pathogenic autoantibodies, and participate in organ damage. However, due to the clinical heterogeneity of SLE, the pathogenic roles of inflammasomes are variable, and thus, the efficacy of inflammasome-targeting therapies is uncertain. To provide a foundation for the development of such therapeutic strategies, in this paper, we review the role of different inflammasomes in the pathogenesis of SLE and their correlation with clinical phenotypes and propose some corresponding treatment strategies.
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Affiliation(s)
- Yaling Liu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xinyu Tao
- Department of Clinical Medicine "5 + 3" Integration, The First Clinical College, Anhui Medical University, Hefei, China
| | - Jinhui Tao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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