Hepatitis B ; Humans ; Th17 Cells

Graves' ophthalmopathy is the most common clinical orbital disease, and T helper (Th) cells play an important role in the development of Graves' ophthalmopathy. Th17 cells are a major subpopulation of Th cells and abnormally highly expressed in patients with Graves' ophthalmopathy. Th17 cells and the related cytokines interleukin (IL)-17A, IL-21 and IL-23 are involved in regulating the inflammatory response, fibrosis and adipogenesis. Th17 cells are unstable and exhibit a degree of plasticity, and they can differentiate into IL-17A and interferon (IFN)-γ dual-producing Th17.1 cells, which exacerbate the pathogenicity of Th17 cells. In addition, Th17 cells and the relevant factors are strongly associated with disease activity and severity in Graves' ophthalmopathy.
Humans ; Cytokines ; Th17 Cells ; Graves Ophthalmopathy ; Adipogenesis

Humans ; Interleukin-17 ; Liver Diseases ; immunology ; Th17 Cells ; immunology

Humans ; Pneumonia ; Pulmonary Fibrosis ; T-Lymphocytes, Regulatory ; Th17 Cells

Cardiovascular Diseases ; Humans ; T-Lymphocytes, Regulatory ; Th17 Cells

Transplantation research has focused on cytotoxic T-cell and plasma cell/B-cell-targeted strategies, but little attention has been paid to the role of T helper 17 (Th17) cells in allograft dysfunction. However, accumulating evidence suggests that Th17 cells contribute to the development of acute and chronic allograft injury after transplantation of various organs, including the kidney. This review summarizes recent reports on the role of Th17 cells in kidney transplantation. Means of improving allograft outcomes by targeting the Th17 pathway are also suggested.
Allografts ; Kidney Transplantation* ; Kidney* ; Plasma ; T-Lymphocytes ; Th17 Cells*

Chronic rhinosinusitis is a common disease and frequently encountered disease in otolaryngology, but the therapeutic effect is not ideal. While its pathogenesis is exploring in the continuously. Found in the recent years, Th17 cells are a new subset of T cells and closely related with inflammatory disorders, autoimmune diseases and cancer. Its differentiation, regulation and biological effects are widely noted as a hot area of research. This review explores the discovery of differentiation and regulation of Th17 cells, the relationship between related cytokines and chronic rhinosinusitis, in order to have a beteer knowledge of chronic rhinosinusitis. This review regards Th17 cells as the main clue, nevertheless, lacking consideration of the impacts of other factors on chronic rhinosinusitis.
Chronic Disease ; Humans ; Rhinitis ; immunology ; Sinusitis ; immunology ; Th17 Cells ; immunology

OBJECTIVE: To investigate the role of regulatory B cells (Breg) in pathogenesis of immune thrombocytopenia(ITP) and its clinical significance. METHODS: A total of 40 ITP patients and 20 normal controls were enrolled in this study. The content of Breg, Th1, Th2, Th17 and Treg cells were detected by flow cytometry (FCM). The expression level of IL-10,TGF-β, CD40 and CD40L was detected by AimPlex Flow High Throughput Screening Technology. RESULTS: The of Breg cells in ITP patients was significantly lower than that in normal controls (P<0.05)，the expression levels of IL-10,TGF-β and CD40L in ITP patients were also significantly lower than those in normal controls (P<0.05). The contents of Th1 cells in ITP patients were significantly higher than that in normal controls (P<0.05), whereas the contents of Th2, Th17 and Treg cells in ITP patients were significantly lower than those in normal controls (P<0.05). CONCLUSION The Breg cells may play an important role in the pathogenesis of ITP.
B-Lymphocytes, Regulatory ; Humans ; T-Lymphocytes, Regulatory ; Th17 Cells ; Thrombocytopenia

Abstract　　Immune thrombocytopenia (ITP) is an acquired autoimmune hemorrhagic disease, although the ITP pathogenesis is completely unknown, but in terms of the current view, the immune tolerance is main reason for the onset of ITP. In recent years, more and more immune cell subsets, cytokines and the new approacher were found to be closely related with the ITP, such as saliva acid, B cell activating factor, dysfunction of regulatory B cells and Th1/Th2 balance drift, CD4 CD25 T cell function defect, IL-23/Th17 pathway regulation, etc., In this paper, the latest research progress on the immune pathogenesis of ITP are reviewed, so as to provide theoretical basis and research direction for further understanding the pathogenesis of ITP.
Cytokines ; Humans ; Interleukin-4 ; Purpura, Thrombocytopenic, Idiopathic ; Th17 Cells

OBJECTIVE: To explore the role of Ter cells in the development of the collagen-induced arthritis (CIA), we detected their quantity changes in the spleen of different stages of CIA mice and analyzed the correlation between Ter cells and the joint scores, and we also analyzed the correlation between Ter cells and the frequencies of T and B cell subsets, so as to further understand the pathogenesis of rheumatoid arthritis. METHODS: The six to eight weeks DBA/1 mice were used to prepare CIA model. After the second immunization, we began to evaluate the joint score. According to the time of CIA onset and the joint score, the CIA mice were divided into three stages: early, peak and late stages. According to the final joint score, the CIA mice at the peak stage were subdivided into the high score group (score>8) and the low score group (score≤8). The frequencies of Ter cells in the spleen of the naïve mice and the CIA mice at various stages and the frequencies of T and B cell subsets in the spleen of the CIA mice at the peak stage were detected by flow cytometry, then we carried on the correlation analysis. RESULTS: The frequencies of Ter cells in the spleen of the CIA mice was significantly higher than those of the naïve mice (8.522%±2.645% vs. 1.937%±0.725%, P<0.01), the frequencies of Ter cells in the spleen of the high score group mice was significantly lower than those of the low score group (6.217%±0.841% vs. 10.827%±0.917%, P<0.01). The frequencies of Th1 cells in the spleen of the high score group mice was significantly higher than those of the low score group mice (1.337%±0.110% vs. 0.727%±0.223%, P<0.05). The frequencies of Th17 cells in the spleen of the high score group mice was higher than those of the low score group mice (0.750%±0.171% vs. 0.477%±0.051%, P=0.099). The frequencies of germinal center B cells in the spleen of the high score group mice was significantly higher than those of the low score group mice (1.243%±0.057% vs. 1.097%±0.015%, P<0.05). Correlation analysis results showed that the frequencies of Ter cells in the spleen of the CIA mice at the peak stage was strongly negatively correlated with the frequencies of CD4+ T, Th1, Th17, and germinal center B cells, and was strongly positively correlated with the frequencies of B10 cells, indicating that these cells might have a protective effect in CIA. Studies on dynamic changes showed that the frequencies of Ter cells in the spleen of the CIA mice at the late stage was significantly lower than those at the peak stage (0.917%±0.588% vs. 8.522%±2.645%, P<0.001), suggesting the protective effect of these cells in arthritis. CONCLUSION Ter cells were significantly increased in the spleen of the CIA mice at peak stage, and were negatively correlated with joint scores and pathogenic immune cells, and positively correlated with protective immune cells. Ter cells were significantly decreased in the spleen of the CIA mice at the late stage. What we mentioned above suggests that Ter cells might be involved in the progression of rheumatoid arthritis as an immunomodulatory cell,but further in vivo and in vitro experiments are needed to verify its specific effects and mechanism.
Animals ; Arthritis, Experimental ; Erythroblasts ; Mice ; Mice, Inbred DBA ; Th17 Cells