Abstract:Objective: To evaluate the effect of diosgenin on regulatory Treg cells in spleen of collagen induced arthritis (CIA) mice. Methods: The CIA mice model was established by immunizing DBA1/J mice with chicken type II collagen and Freund’s completed adjuvant. And CD4+CD25+Treg cells in spleen of CIA model mice were isolated by MACS. Then, to detect the purity of Treg cells by flow cytometry and culture them in vitro. 48 hours after treatment, the proportion of Treg cells was detected by flow cytometry, the expression of transcription factor Foxp3 in Treg cells was detected by real-time fluorescence quantitative PCR, and the levels of IL-10 were detected by ELISA. Results: CIA model mice were established successfully. The purity of Treg cells isolated by MACS was more than 90%. Compared with the control group, the percentage of Treg cells, the Foxp3 mRNA level, and the expression of IL-10 in cell supernatant were increased significantly (P<0.05) 48 hours after treatment.Conclusion: Diosgenin can significantly increase the proportion of Treg cells, the levels of transcription factor Foxp3 and IL-10 in CIA mice.
[1] Bakheet SA,Ansari MA, Nadeem A,et al. CXCR3 antagonist AMG487 suppresses rheumatoid arthritis pathogenesis and progression by shifting the Th17/Treg cell balance[J]. Cellular Signalling, 2019, 64: 109395. [2] Wang C, Mu Z. Research progress on regulatory T cells and their relationship with autoimmune diseases[J]. Science Journal of Public Health, 2020, 8(3):83. [3] 伊刚,赵毅,解丰,等.单细胞RNA测序揭露人FOXP3+调节性T细胞稳定性的关键调控分子(英文)[J].Science Bulletin,2020,65(13):1114~1124. [4] 郭亚春,梁秀军,高亚贤,等.中药薯蓣皂苷元对CIA大鼠滑膜组织VEGF及AP-Ⅰ表达的影响[J].世界科学技术-中医药现代化,2015,17(9):1801~1805. [5] 高亚贤,王永为,宋鸿儒,等.穿龙薯蓣皂苷元体外对CIA小鼠Treg细胞亚群及转录因子的影响[J].中国免疫学杂志,2019,35(21):2593~2598. [6] 李智伟,田永芳,卢佩佩,等.类风湿性关节炎患者淋巴细胞和Treg/Th17平衡的检测及意义[J].国际检验医学杂志,2019,40(16):2026~2028. [7] Liebling MR. Methylation of the CTLA-4 promoter and treg cell dysfunction in rheumatoid arthritis: comment on the article by cribbs et al.Treg cell function in rheumatoid arthritis is compromised by CTLA-4 promoter methylation resulting in failure to activate the indoleamine 2,3-dioxygenase pathway. Arthritis Rheumatol 2014;66[J]. Arthritis & rheumatology (Hoboken, N.J.), 2015, 67(5): 1406. [8] Zavvar M,Assadiasl S,Zargaran S, et al. Adoptive Treg cell-based immunotherapy: Frontier therapeutic aspects in rheumatoid arthritis[J]. Immunotherapy, 2020, 12(12): 933~946. [9] 郭亚春,赵晓菲,黄群,等.薯蓣皂苷元体外作用对胶原诱导性关节炎小鼠Th1/Th2型细胞因子的影响[J].中国老年学杂志,2018,38(13):3193~3196. [10] Liang XiuJun, Guo Yachun, Sun Tongyou, et al. Anti-angiogenic effect of total saponins of rhizoma dioscorea nipponica on collagen induced-arthritis in rats[J]. Experimental and therapeutic medicine, 2016, 12(4): 2155~2160.