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Bao CF, Wang F, Zhou DY, Zhou G. CD4 +CD8αα + is the dominant phenotype of intraepithelial lymphocytes and regulated by ThPOK and Runx3 in oral lichen planus. J Oral Pathol Med 2024; 53:480-490. [PMID: 38866540 DOI: 10.1111/jop.13564] [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: 11/28/2023] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Oral lichen planus (OLP) is a common T cell-mediated oral mucosal immune inflammatory disease. Intraepithelial lymphocytes (IELs) are a unique subset of T cells that play an important role in regulating immune response. This study aims to investigate the phenotype and the differentiation mechanism of IELs in OLP. METHODS The expression of CD4, CD8α, CD8β, T-helper-inducing POZ/Krueppel-like factor (ThPOK), and RUNX family transcription factor 3 (Runx3) in the epithelium and peripheral blood mononuclear cells (PBMCs) of OLP was determined by immunofluorescence and immunohistochemistry. Then, the correlations among them were analyzed. Naïve CD4+ T cells were sorted from blood of OLP patients and stimulated with retinoic acid (RA) and transforming growth factor-β1 (TGF-β1). Then the expression of CD4, CD8α, CD8β, ThPOK, and Runx3 was investigated by immunocytochemistry. RESULTS CD8α expression and CD8αα+ cells were upregulated in the epithelium of OLP, whereas they were downregulated in PBMCs of OLP. CD8β was not expressed in the epithelium of OLP. CD4, CD8α, and Runx3 expression and CD4+CD8α+ cells were increased, whereas ThPOK expression was decreased in the epithelium of OLP. CD8α expression was positively correlated with Runx3 expression, whereas ThPOK expression was negatively correlated with Runx3 expression. After RA and TGF-β1 stimulation, CD8α and Runx3 expression was upregulated, and ThPOK expression was downregulated in naïve CD4+ T cells. CONCLUSION CD4+CD8αα+ IELs may be the dominant phenotype of IELs in OLP, and the differentiation of CD4+CD8αα+ IELs in OLP is negatively regulated by ThPOK and positively regulated by Runx3.
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Affiliation(s)
- Chao-Fan Bao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fang Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Dong-Yang Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Gang Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Su Z, Lu J, Ling Z, Li W, Yang X, Cheng B, Tao X. Upregulation of IL-37 in epithelial cells: A potential new mechanism of T cell inhibition induced by tacrolimus. Biochem Pharmacol 2023; 216:115796. [PMID: 37690572 DOI: 10.1016/j.bcp.2023.115796] [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: 08/28/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
Oral lichen planus (OLP) is a chronic T cell-mediated mucocutaneous disease characterized by T cell infiltration at the connective tissue-epithelium interface. Traditionally, topical corticosteroids are used as the first-line drugs to treat OLP. However, long-term use of corticosteroids may lead to drug tolerance, secondary candidiasis, and autoimmune adrenal insufficiency. Although topical tacrolimus has often been recommended for short-term use in corticosteroid-refractory OLP, the precise role of tacrolimus in epithelial cells remains elusive. This study showed that tacrolimus could directly upregulate the expression of IL-37 in human gingival epithelial cells by promoting the TGF-βRI/Smad3 pathway independently of calcineurin inhibition and MAPKs. In contrast, dexamethasone, one of the corticosteroids, did not have the same effect. Moreover, IL-37 could inhibit the proliferation of activated T cells and the secretion of effector cytokines and alleviate epithelial cell apoptosis and death caused by activated T cells ina co-culturesystem. Furthermore, compared with healthy controls, IL-37 and p-Smad3 levels significantly increased in the oral mucosa affected by OLP, especially in the epithelium. IL-37 might have mediated a negative feedback mechanism to curb excessive inflammation in OLP. However, the expression of IL-37 was not associated with the infiltration of CD8+ T cells and Tregs in OLP, implying that IL-37 might mostly affect T cell activation rather than T cell differentiation and migration. Overall, this study discovered a potential novel mechanism by which tacrolimus might indirectly inhibit T cell-mediated immune damage by upregulating IL-37 in human gingival epithelial cells.
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Affiliation(s)
- Zhangci Su
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China
| | - Jingyi Lu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China
| | - Zihang Ling
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China
| | - Wei Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China
| | - Xi Yang
- Department of Periodontology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong, China.
| | - Bin Cheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China.
| | - Xiaoan Tao
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510080, Guangdong, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, Guangdong, China.
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Li W, Ling Z, Wang J, Su Z, Lu J, Yang X, Cheng B, Tao X. ASCT2-mediated glutamine uptake promotes Th1 differentiation via ROS-EGR1-PAC1 pathway in oral lichen planus. Biochem Pharmacol 2023; 216:115767. [PMID: 37634599 DOI: 10.1016/j.bcp.2023.115767] [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: 06/18/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 08/29/2023]
Abstract
Oral lichen planus (OLP) is a T cell-mediated autoimmune disease of oral mucosa concerning with the redox imbalance. Although glutamine uptake mediated by alanine-serine-cysteine transporter 2 (ASCT2) is critical to T cell differentiation, the exact mechanism remains ambiguous. Here, we elucidate a novel regulatory mechanism of ASCT2-mediated uptake in the differentiation and proliferation of T cells through maintaining redox balance in OLP. The results of immunohistochemistry (IHC) showed that both ASCT2 and glutaminase (GLS) were obviously upregulated compared to controls in OLP. Moreover, correlation analyses indicated that ASCT2 expression was significantly related to GLS level. Interestingly, the upregulation of glutamine metabolism in epithelial layer was consistent with that in lamina propria. Functional assays in vitro revealed the positive association between glutamine metabolism and lymphocytes infiltration. Additionally, multiplex immunohistochemistry (mIHC) uncovered a stronger colocalization among ASCT2 and CD4 and IFN-γ, which was further demonstrated by human Th1 differentiation assay in vitro. Mechanistically, targeting glutamine uptake through interference with ASCT2 using L-γ-Glutamyl-p-nitroanilide (GPNA) decreased the glutamine uptake of T cells and leaded to the accumulation of intracellular reactive oxygen species (ROS), which promoted dual specificity phosphatase 2 (DUSP2/PAC1) expression through activation of early growth response 1 (EGR1) to induce dephosphorylation of signal transducer and activator of transcription 3 (STAT3) and inhibit Th1 differentiation in turn. These results demonstrated that glutamine uptake mediated by ASCT2 induced Th1 differentiation by ROS-EGR1-PAC1 pathway, and restoring the redox dynamic balance through targeting ASCT2 may be a potential treatment for T cell-mediated autoimmune diseases.
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Affiliation(s)
- Wei Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Zihang Ling
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Jinmei Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Zhangci Su
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Jingyi Lu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xi Yang
- Department of Periodontology, Stomatological Hospital, Southern Medical University, Guangzhou, China.
| | - Bin Cheng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
| | - Xiaoan Tao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
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Luan Y, Luan Y, He H, Jue B, Yang Y, Qin B, Ren K. Glucose metabolism disorder: a potential accomplice of SARS-CoV-2. Int J Obes (Lond) 2023; 47:893-902. [PMID: 37542197 DOI: 10.1038/s41366-023-01352-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/29/2023] [Accepted: 07/14/2023] [Indexed: 08/06/2023]
Abstract
Globally, 265,713,467 confirmed cases of SARS-CoV-2 (CoV-2), including 5,260,888 deaths, have been reported by the WHO. It is important to study the mechanism of this infectious disease. A variety of evidences show the potential association between CoV-2 and glucose metabolism. Notably, people with type 2 diabetes mellitus (T2DM) and other metabolic complications were prone to have a higher risk of developing a more severe infection course than people who were metabolically normal. The correlations between glucose metabolism and CoV-2 progression have been widely revealed. This review will discuss the association between glucose metabolism disorders and CoV-2 progression, showing the promoting effect of diabetes and other diseases related to glucose metabolism disorders on the progression of CoV-2. We will further conclude the effects of key proteins and pathways in glucose metabolism regulation on CoV-2 progression and potential interventions by targeting glucose metabolism disorders for CoV-2 treatment. Therefore, this review will provide systematic insight into the treatment of CoV-2 from the perspective of glucose metabolism.
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Affiliation(s)
- Yi Luan
- Department of Translational Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ying Luan
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100000, China
| | - Hongbo He
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450001, China
| | - Bolin Jue
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453000, China
| | - Yang Yang
- Department of Translational Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Bo Qin
- Department of Translational Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Kaidi Ren
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, 450052, China.
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5
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Zhang Y, Zhang Y, Li X, Chen X, Zhang Y, Liu X, Wu S, Li Y, Li B. 2-DG Re-Normalized IFN-γ Production in T Cells Excluding T EMRA Cells from Patients with Aplastic Anemia. Immunol Invest 2023:1-15. [PMID: 36989080 DOI: 10.1080/08820139.2023.2195436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Aplastic anemia (AA) is a T cell immune mediated autoimmune disease in which cytokines, particularly IFN-γ are pathogenesis factors. Glucose metabolism is closely related to effector functions of activated T cells, such as IFN-γ production. The characteristics of glucose metabolism and whether interfering with glucose metabolism could affect T cells produce IFN-γ ability in AA patients remains unknown. In this study, we examined the characteristics of glucose metabolism in T cells from AA patients and the effects of the glucose metabolism inhibitor 2-deoxy-D-glucose (2-DG) on the ability of T cell production IFN-γ. Our data demonstrated abnormal glucose metabolism in stimulated T cells from AA patients, mainly reflected by increased glucose uptake and lactate secretion. In addition, EM and TEMRA cells exhibit higher glucose uptake in patients with AA compared with healthy individuals. Moreover, the frequency of IFN-γ+ was reduced by 2-DG in T cell from AA patients. Unexpectedly, 2-DG re-normalized the frequency of IFN-γ+ in other T cell subsets, except for in the TEMRA. In conclusion, our study reveals for the first time the existence of enhanced aerobic glycolysis in T cells from AA patients, and different T cell subsets exhibit different extent glucose uptake requirements. Aerobic glycolysis regulation may be a potential therapeutic strategy for aberrant T cell immunity. Moreover, TEMRA may have specific metabolic abnormalities, which should receive more attention in future targeted immune metabolism research.
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Affiliation(s)
- Yue Zhang
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Yuping Zhang
- Department of Hematology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Xueqin Li
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaohui Chen
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Yikai Zhang
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaoen Liu
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Shujuan Wu
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Yangqiu Li
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Bo Li
- Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
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6
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Huang S, Tan YQ, Zhou G. Aberrant Activation of the STING-TBK1 Pathway in γδ T Cells Regulates Immune Responses in Oral Lichen Planus. Biomedicines 2023; 11:biomedicines11030955. [PMID: 36979934 PMCID: PMC10046253 DOI: 10.3390/biomedicines11030955] [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: 02/09/2023] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Oral lichen planus (OLP) is a chronic T cell-mediated inflammatory disease. Interferon (IFN)-γ has been suggested to be vital for the OLP immune responses. A prominent innate-like lymphocyte subset, γδ T cells, span the innate-adaptive continuum and exert immune effector functions by producing a wide spectrum of cytokines, including IFN-γ. The involvement and mechanisms of γδ T cells in the pathogenesis of OLP remain obscure. The expression of γδ T cells in lesion tissues and in the peripheral blood of OLP patients was determined via flow cytometry and immunohistochemistry, respectively. Human leukocyte antigen-DR (HLA-DR), cluster of differentiation (CD) 69, Toll-like receptors (TLRs), natural killer group 2, member D (NKG2D) and IFN-γ were detected in γδ T cells of OLP patients using flow cytometry. Additionally, the involvement of stimulator of the interferon genes (STING)-TANK-binding kinase 1 (TBK1) pathway in γδ T cells was evaluated by multi-color immunofluorescence. Western blotting was employed to investigate the regulatory mechanisms of γδ T cells in OLP. γδ T cells were significantly upregulated in the lesion tissues, whereas their peripheral counterparts were downregulated in OLP patients. Meanwhile, increased frequencies of local CD69+ and NKG2D+ γδ T cells and peripheral HLA-DR+ and TLR4+ γδ T cells were detected in OLP. Furthermore, significant co-localization of STING and TBK1 was observed in the γδ T cells of OLP lesions. In addition, enhanced IFN-γ and interleukin (IL)-17A were positively associated with the activated STING-TBK1 pathway and γδ T cells in OLP. Taken together, the upregulated STING-TBK1 pathway in activated γδ T cells might participate in the regulation of immune responses in OLP.
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Affiliation(s)
- Shan Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Ya-Qin Tan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
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Wang F, Zhang J, Zhou G. 2-Deoxy-D-glucose impedes T cell-induced apoptosis of keratinocytes in oral lichen planus. J Cell Mol Med 2021; 25:10257-10267. [PMID: 34672419 PMCID: PMC8572795 DOI: 10.1111/jcmm.16964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 09/02/2021] [Accepted: 09/19/2021] [Indexed: 12/24/2022] Open
Abstract
Oral lichen planus (OLP) is a T cell–mediated immunoinflammatory disease. Glycolysis plays an essential role in T‐cell immune responses. Blocking glycolytic pathway in activated T cells represents a therapeutic strategy for restraint of immunologic process in autoimmune disorders. 2‐Deoxy‐D‐glucose (2‐DG) has been widely used to probe into glycolysis in immune cells. This study was aimed to explore the role of glycolysis inhibition by 2‐DG on regulating immune responses of OLP‐derived T cells. We observed that lactic dehydrogenase A (LDHA) expression was elevated in OLP lesions and local T cells. 2‐DG inhibited the expression of LDHA, p‐mTOR, Hif1α and PLD2 in T cells; meanwhile, it decreased proliferation and increased apoptosis of T cells. T cells treated by 2‐DG showed lower LDHA expression and elevated apoptosis, resulting in a reduced apoptotic population of keratinocytes that were co‐cultured with them, which was related to the decreased levels of IFN‐γ in co‐culture system. Rapamycin enhanced the effects of 2‐DG on immune responses between T cells and keratinocytes. Thus, these findings indicated that OLP‐derived T cells might be highly dependent upon high glycolysis for proliferation, and 2‐DG treatment combined with rapamycin might be an option to alleviate T‐cell responses, contributing to reducing apoptosis of keratinocytes.
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Affiliation(s)
- Fang Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (HubeiMOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jing Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (HubeiMOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (HubeiMOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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