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Chen S, Wu X, Yang Y, Xu X, Xiong X, Meng W. Increased pathogenicity and pro-inflammatory capabilities of mucosal-associated invariant T cells involved in Oral Lichen Planus. BMC Oral Health 2024; 24:829. [PMID: 39039547 PMCID: PMC11264365 DOI: 10.1186/s12903-024-04621-y] [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: 01/14/2024] [Accepted: 07/17/2024] [Indexed: 07/24/2024] Open
Abstract
BACKGROUND Mucosal-associated invariant T (MAIT) cells assume pivotal roles in numerous autoimmune inflammatory maladies. However, scant knowledge exists regarding their involvement in the pathological progression of oral lichen planus (OLP). The focus of our study was to explore whether MAIT cells were altered across distinct clinical types of OLP. METHODS The frequency, phenotype, and partial functions of MAIT cells were performed by flow cytometry, using peripheral blood from 18 adults with non-erosive OLP and 22 adults with erosive OLP compared with 15 healthy adults. We also studied the changes in MAIT cells in 15 OLP patients receiving and 10 not receiving corticosteroids. Surface proteins including CD4, CD8, CD69, CD103, CD38, HLA-DR, Tim-3, Programmed Death Molecule-1 (PD-1), and related factors released by MAIT cells such as Granzyme B (GzB), interferon (IFN)-γ, tumour necrosis factor (TNF)-α, interleukin (IL)-17A, and IL-22 were detected. RESULTS Within non-erosive OLP patients, MAIT cells manifested an activated phenotype, evident in an elevated frequency of CD69+ CD38+ MAIT cells (p < 0.01). Conversely, erosive OLP patients displayed an activation and depletion phenotype in MAIT cells, typified by elevated CD69 (p < 0.01), CD103 (p < 0.05), and PD-1 expression (p < 0.01). Additionally, MAIT cells exhibited heightened cytokine production, encompassing GzB, IFN-γ, and IL-17A in erosive OLP patients. Notably, the proportion of CD103+ MAIT cells (p < 0.05) and GzB secretion (p < 0.01) by MAIT cells diminished, while the proportion of CD8+ MAIT cells (p < 0.05) rose in OLP patients with corticosteroid therapy. CONCLUSIONS MAIT cells exhibit increased pathogenicity and pro-inflammatory capabilities in OLP. Corticosteroid therapy influences the expression of certain phenotypes and functions of MAIT cells in the peripheral blood of OLP patients.
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Affiliation(s)
- Siting Chen
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China
| | - Xiaoli Wu
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China
| | - Yinshen Yang
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China
| | - Xiaoheng Xu
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China
| | - Xiaoqin Xiong
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China
| | - Wenxia Meng
- Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University NO.366, Jiangnan Road, Guangzhou, Guangdong Province, 510280, P.R. China.
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Liu Y, Chen Z, Xiao Y, Chen H, Zhou Z. Altered expression of Tim family molecules and an imbalanced ratio of Tim-3 to Tim-1 expression in patients with type 1 diabetes. Front Endocrinol (Lausanne) 2022; 13:937109. [PMID: 35966054 PMCID: PMC9366857 DOI: 10.3389/fendo.2022.937109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND T-cell immunoglobulin and mucin domain (Tim) proteins are immunomodulatory molecules that play key roles in the regulation of T-cell activation. Published studies have reported that Tim molecules are involved in the pathogenesis of certain autoimmune diseases. Type 1 diabetes (T1D) is an autoimmune disease in which T cells mediate the destruction of islet β cells. However, the expression of Tim molecules in T1D remains unclear. In this study, we measured the expression of Tim family molecules as well as T-cell subset-specific transcription factors in T1D patients, and we explored the possible involvement of Tim molecules in the pathogenesis of T1D. METHODS Ninety T1D patients, Thirty-six type 2 diabetes (T2D) patients and forty healthy controls (HCs) were recruited for this study. Peripheral blood mononuclear cells (PBMCs) were isolated, RNA was extracted from the PBMCs and reverse transcribed into cDNA, and gene expression patterns were analysed by RT-qPCR. The expression of Tim molecules in different T-cell subsets was analysed by flow cytometry. RESULTS Compared with that in HCs, the mRNA expression of Tim-1 and RORC was increased in T1D patients (P=0.0355 and P=0.0423, respectively), while the expression of Tim-3 was decreased (P=0.0013). In addition, compared with HCs, the ratio of Tim-3 to Tim-1 expression in diabetic patients was decreased (P<0.0001 for T1D and P=0.0387 for T2D). The ratios of T-Bet to GATA3 expression and RORC to FOXP3 expression were higher in T1D patients than in HCs (P=0.0042 and P=0.0066, respectively). Furthermore, the T1D patients with defective islet function had more significant imbalances in the Tim-3/Tim-1 and RORC/FOXP3 ratios (P<0.0001, and P=0.001, respectively). Moreover, Both Tim-3 expression in CD4+ T cells and the Tim-3 to Tim-1 ratio were elevated in T1D in the remission phase compared to T1D. CONCLUSION Our study revealed altered expression of Tim molecules in T1D patients. The imbalanced ratios of Tim-3/Tim-1 expression were more pronounced in T1D patients with defective islet function. However, alterations in Tim molecule expression are mitigated in T1D in the remission phase. All these findings suggest that Tim family molecules may be involved in the pathogenesis of T1D.
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Zhang F, Zhao J, Sun D, Wei N. MiR-155 inhibits transformation of macrophages into foam cells via regulating CEH expression. Biomed Pharmacother 2018; 104:645-651. [PMID: 29803178 DOI: 10.1016/j.biopha.2018.05.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 12/15/2022] Open
Abstract
MiR-155 can inhibit the formation of atherosclerosis by interfering with the transformation of macrophages into foam cells that plays a critical role in the pathogenesis of atherosclerosis, but the precise mechanisms of miR-155 are still unknown. Herein, we observed that mRNA and protein expression levels of CEH were significantly upregulated in a dose- and time-dependent manner by transfected with miR-155 mimics in THP-1 macrophages. Further studies showed that overexpression of miR-155 can significantly inhibit foam cells formation, reduce intracellular CE accumulation and enhance the efflux of FC and cholesterol, result in a decrease of intracellular lipid accumulation; while this effect was significantly reversed by siCEH. Meanwhile, we found that Tim-3 is associated with miR-155-mediated CEH expression in THP-1 macrophage-derived foam cells. Overexpression of Tim-3 can attenuate miR-155-mediated CEH induction. Taken together, our findings demonstrated that miR-155 can inhibit the transformation of macrophages into foam cells by enhancing CEH signaling pathway in macrophages, this effect is likely to be achieved by inhibiting the expression of Tim-3.
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Affiliation(s)
- Fengxiang Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of JINZHOU Medical University, Jinzhou, 121001, China
| | - Jinsong Zhao
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of JINZHOU Medical University, Jinzhou, 121001, China
| | - Dapeng Sun
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of JINZHOU Medical University, Jinzhou, 121001, China.
| | - Ning Wei
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Zahran AM, Youssef MAM, Elsayh KI, Embaby MM, Ibrahim AIM. Clinical Significance of T-Cell Immunoglobulin Mucin 3 Expression on Peripheral Blood Mononuclear Cells in Pediatric Acute Immune Thrombocytopenia. Clin Appl Thromb Hemost 2017; 24:936-943. [PMID: 28974109 PMCID: PMC6714716 DOI: 10.1177/1076029617730638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
T-cell immunoglobulin mucin 3 (TIM-3) is a transmembrane protein that plays an important role in several autoimmune diseases. The relationship between TIM-3 and excessive immune responses in immune thrombocytopenia (ITP) is still unknown. In this study, we evaluated the relationship between the expression of TIM-3 on peripheral blood mononuclear cells in patients with ITP and the disease severity. The frequency of lymphocyte and monocyte subsets and their TIM-3 expression were evaluated in patients with acute ITP (n = 45) and in healthy control (n = 20) using flow cytometry. Based on bleeding severity, patients were classified into 3 subgroups as mild (n = 12), moderate (n = 25), and severe (n = 8) bleeding. T-helper lymphocytes was found to be significantly decreased in the severe bleeding group compared to the mild and moderate bleeding groups, while CD56high natural killer (NK) cells were significantly expanded in severe bleeding group. In contrast, classical, intermediate, and nonclassical monocytes, natural killer T lymphocyte (NKT), and CD56dim NK cells showed no significant changes among different patient groups. This alteration of lymphocyte and monocyte subsets was associated with significant decrease in TIM-3 expression on CD56high NK cells, T-helper lymphocytes, NKT cells, and nonclassical monocytes in patients with ITP compared to the controls. Lower level of TIM-3 was found in severe bleeding group compared to mild and moderate bleeding groups. These results indicate that TIM-3 may be involved in the pathogenesis of ITP which subsequently can represent an opportunity for new therapeutic plan, moreover. This may have a prognostic value for disease severity.
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Affiliation(s)
- Asmaa M Zahran
- 1 Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Mervat A M Youssef
- 2 Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Khalid I Elsayh
- 2 Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mustafa M Embaby
- 2 Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ahmad I M Ibrahim
- 2 Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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Zhong J, Chen S, Xu L, Lai J, Liao Z, Zhang T, Yu Z, Lu Y, Yang L, Wu X, Li B, Li Y. Lower expression of PD-1 and PD-L1 in peripheral blood from patients with chronic ITP. ACTA ACUST UNITED AC 2016; 21:552-7. [PMID: 27077771 DOI: 10.1080/10245332.2016.1155347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND T-cell dysregulation is a major event involved in immune thrombocytopenic purpura (ITP). Increasing data have indicated that abnormal expression of T-cell immunosuppressive receptors, such as programmed death (PD) 1 and cytotoxic T lymphocyte antigen-4 (CTLA-4), may be related to autoimmune disease pathogenesis. METHODS We analyzed the expression levels of PD-1, its ligand PD-L1, and CTLA-4 in peripheral blood mononuclear cells from 18 patients with chronic ITP by real-time polymerase chain reaction, and samples from 20 healthy individuals served as control. RESULTS The results demonstrated significantly lower expression of PD-1 (median: 0.0015) and PD-L1 (median: 0.0572) in chronic ITP patients compared with healthy individuals (PD-1: median: 0.0117, P < 0.0001; PD-L1: median: 0.5428, P < 0.0001), while there was no significant difference in the CTLA-4 expression level between the chronic ITP patients (median: 0.0818) and healthy individuals (median: 0.1667) (P = 0.219). Moreover, a positive correlation between the expression levels of PD-1 and PD-L1 (rs = 0.486, P = 0.041) and CTLA-4 and PD-1 (rs = 0.643, P = 0.004) in the chronic ITP patients was found. CONCLUSION Consistently lower expression of T-cell immunosuppressive receptors is a common characteristic of chronic ITP, which may be associated with its pathogenesis.
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Affiliation(s)
- Jun Zhong
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China
| | - Shaohua Chen
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Ling Xu
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Jing Lai
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China
| | - Ziwei Liao
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Tao Zhang
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China
| | - Zhi Yu
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China
| | - Yuhong Lu
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China
| | - Lijian Yang
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Xiuli Wu
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Bo Li
- b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China
| | - Yangqiu Li
- a Department of Hematology , First Affiliated Hospital, Jinan University , Guangzhou 510632 , China.,b Institute of Hematology, Medical College, Jinan University , Guangzhou 510632 , China.,c Key Laboratory for Regenerative Medicine of Ministry of Education , Jinan University , Guangzhou 510632 , China
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Shan NN, Dong LL, Zhang XM, Liu X, Li Y. Targeting autophagy as a potential therapeutic approach for immune thrombocytopenia therapy. Crit Rev Oncol Hematol 2016; 100:11-5. [PMID: 26830007 DOI: 10.1016/j.critrevonc.2016.01.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 12/09/2015] [Accepted: 01/14/2016] [Indexed: 01/01/2023] Open
Abstract
Autophagy involves the sequestration and lysosomal degradation of various cytoplasmic structures, including damaged organelles and invading microorganisms. Autophagy is not only an essential cell-intrinsic mechanism for protecting against internal and external stress conditions but is also key in the cellular response against microbes, in antigen processing for major histocompatibility complex (MHC) presentation, and in lymphocyte development, survival, and proliferation. In recent years, perturbations in autophagy have been implicated in a number of diseases, including autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and multiple sclerosis (MS). Immune thrombocytopenia (ITP) is a multifactorial disease characterized by autoimmune responses to self-platelet membrane proteins. Recently, our unpublished original data demonstrated aberrant expression of molecules in the autophagy pathway in ITP patients compared with controls, and we found a close correlation between the pathogenesis of ITP and the autophagy pathway. The potential of targeting the autophagy pathway in ITP as a novel therapeutic approach has been discussed.
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Affiliation(s)
- Ning-Ning Shan
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China.
| | - Li-Li Dong
- Department of Pediatric surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China
| | - Xiao-Mei Zhang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China
| | - Xin Liu
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China
| | - Ying Li
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China
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Decreased expression of IL-33 in immune thrombocytopenia. Int Immunopharmacol 2015; 28:420-4. [DOI: 10.1016/j.intimp.2015.06.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 06/22/2015] [Accepted: 06/23/2015] [Indexed: 12/27/2022]
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