Definition of follicular helper T cell and cytokines expression in synovial fluid of rheumatoid arthritis. 2024

Shaowei Pan, and Xiaoyu Xiao, and Tong Li, and Shiyao Wu, and Junyu Zhou, and Shuangyun Tan, and Jiaomei Cheng, and Yuzi Tian, and Huali Zhang, and Xiaoli Zhang
The Department of Rheumatology and Immunology, Xiangya hospital of Central South University, Changsha, China.

OBJECTIVE This study aimed to assess the role of synovial fluid (SF) CD4+T, CD19+B, follicular helper cells (Tfh), and cytokines in the pathogenesis of rheumatoid arthritis (RA). METHODS This study enrolled 16 patients with RA and 8 patients with osteoarthritis (OA). The frequencies of the SF CD4+ T, CD19+ B, Tfh cells, and Tfh subsets were assessed using flow cytometry. The medical condition in patients with RA was evaluated using The Disease Activity Score 28 (DAS28), the Clinical Disease Activity Index (CDAI), and the Simplified Disease Activity Index (SDAI). Levels of C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), anti-cyclic citrullinated peptide (anti-CCP), and rheumatoid factor (RF) were measured. The cytokines IL-4, IL-13, IL-21, and BLyS were measured by ELISA test. RESULTS The percentages of SF CD4+T, CD19+B, and PD-1+CXCR5+ Tfh in RA patients were higher than those in OA patients. And the Tfh2 was the main subset among Tfh subsets. In addition, levels of IL-21 and BLyS were higher in patients with RA compared to patients with OA. Furthermore, the treatment of TNF-α inhibitors may be associated with decreased levels of SF Tfh. CONCLUSIONS Elevated SF Tfh, B cell, and cytokines expression profiles were observed in RA patients. Tfh2 was the major subset of the Tfh, and IL-21 and BLyS were significantly enhanced. Additionally, TNF-α inhibitors reduced Tfh in SF. Therefore, Tfh, B, and Tfh2 cells could play a significant role in the progression of RA. Key Points •Tfh cells in the synovial fluid are significantly higher in RA patients and are dominated by the Tfh2 subpopulation. •Synovial fluid Tfh cells decrease in RA patients after anti-TNF-α treatment.

UI MeSH Term Description Entries
D010003 Osteoarthritis A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans. Arthritis, Degenerative,Osteoarthrosis,Osteoarthrosis Deformans,Arthroses,Arthrosis,Arthritides, Degenerative,Degenerative Arthritides,Degenerative Arthritis,Osteoarthritides,Osteoarthroses
D006377 T-Lymphocytes, Helper-Inducer Subpopulation of CD4+ lymphocytes that cooperate with other lymphocytes (either T or B) to initiate a variety of immune functions. For example, helper-inducer T-cells cooperate with B-cells to produce antibodies to thymus-dependent antigens and with other subpopulations of T-cells to initiate a variety of cell-mediated immune functions. Helper Cell,Helper Cells,Helper T Cell,Helper-Inducer T-Lymphocytes,Inducer Cell,Inducer Cells,T-Cells, Helper-Inducer,T-Lymphocytes, Helper,T-Lymphocytes, Inducer,Helper T-Cells,Cell, Helper T,Cells, Helper T,Helper Inducer T Lymphocytes,Helper T Cells,Helper T-Cell,Helper T-Lymphocyte,Helper T-Lymphocytes,Helper-Inducer T-Cell,Helper-Inducer T-Cells,Helper-Inducer T-Lymphocyte,Inducer T-Lymphocyte,Inducer T-Lymphocytes,T Cell, Helper,T Cells, Helper,T Cells, Helper Inducer,T Lymphocytes, Helper,T Lymphocytes, Helper Inducer,T Lymphocytes, Inducer,T-Cell, Helper,T-Cell, Helper-Inducer,T-Cells, Helper,T-Lymphocyte, Helper,T-Lymphocyte, Helper-Inducer,T-Lymphocyte, Inducer
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000079424 Tumor Necrosis Factor Inhibitors Compounds or agents that bind to and inhibit the synthesis or activity of TUMOR NECROSIS FACTOR-alpha. Such agents are used to treat inflammatory bowel diseases and other inflammatory diseases. TNF Antagonist,TNF Blocker,TNF Inhibitor,Tumor Necrosis Factor Antagonist,Tumor Necrosis Factor Blocker,Tumor Necrosis Factor Inhibitor,Tumor Necrosis Factor-a (TNF-a) Antagonist,Tumor Necrosis Factor-a (TNF-a) Blocker,Tumor Necrosis Factor-a (TNF-a) Inhibitor,TNF Antagonists,TNF Blockers,TNF Inhibitors,Tumor Necrosis Factor Antagonists,Tumor Necrosis Factor Blockers,Tumor Necrosis Factor-a (TNF-a) Antagonists,Tumor Necrosis Factor-a (TNF-a) Blockers,Tumor Necrosis Factor-a (TNF-a) Inhibitors,Antagonist, TNF,Antagonists, TNF,Blocker, TNF,Blockers, TNF,Inhibitor, TNF,Inhibitors, TNF
D000084522 T Follicular Helper Cells A specialized subpopulation of CD4+ T cells involved in formation of GERMINAL CENTER. Tfh cells are mostly located in secondary lymphoid organs, e.g., TONSIL; SPLEEN and LYMPH NODES. They are CD4 ANTIGEN; CD45 ANTIGEN; B-CELL LYMPHOMA 6 PROTEIN; CXCR5 RECEPTORS; ICOS INDUCIBLE T-CELL CO-STIMULATOR; and PD1 RECEPTOR positive. Follicular B Helper T Cells,Follicular Helper T Cells,Tfh Cells,Tfh Cell
D001172 Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated. Rheumatoid Arthritis
D013582 Synovial Fluid The clear, viscous fluid secreted by the SYNOVIAL MEMBRANE. It contains mucin, albumin, fat, and mineral salts and serves to lubricate joints. Synovia,Fluid, Synovial,Fluids, Synovial,Synovial Fluids
D014409 Tumor Necrosis Factor-alpha Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS. Cachectin,TNF-alpha,Tumor Necrosis Factor Ligand Superfamily Member 2,Cachectin-Tumor Necrosis Factor,TNF Superfamily, Member 2,TNFalpha,Tumor Necrosis Factor,Cachectin Tumor Necrosis Factor,Tumor Necrosis Factor alpha
D016207 Cytokines Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner. Cytokine

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