The Effects of Nanocurcumin on Treg Cells and Th17 Cells Responses in Ankylosing Spondylitis Patients

Summary

Ankylosing Spondylitis (AS) is a chronic rheumatic disease that principally affects the intervertebral and sacroiliac joints. Two major features of AS are inflammation and bone reformation. Th17 cells as a new subpopulation of CD4+ T cells, are characterized by the production of pro-inflammatory cytokines. Th17 cells have been implicated in autoimmune diseases, pathogenesis and diagnosis of several inflammatory diseases, such as AS. Regulatory T cells (Treg) with suppressive effects on inflammation and autoimmunity have been reported to implicate in pathology of AS. The Treg /Th17 functional balance is essential for the prevention of autoimmune and inflammatory diseases by preventing deleterious impairment to the host and mounting effective immune responses. A group of circulating miRNA in plasma is found to be the change they can be involved in inflammation or inhibit it. miRNAs have been shown to play a pivotal role in the pathogenesis of various diseases including autoimmune or auto-inflammatory diseases.The function and molecular pathways of several key deregulated miRNAs, are elucidated in AS patients. Curcumin is an active component of turmeric which is a perennial plant. Curcumin is able to exert anti-atherogenic, anti-cancer and anti-inflammatory effects. The curcumin induces down-regulation of various inflammatory cytokines including TNF-α and IL-1. The solubility of curcumin in nanomicelles spherical water increases to more than 100 thousand times, which significantly enhances the absorption of curcumin. The aim of the present study was to understand the nano-curcumin effects on frequency of Treg and Th17 cells, expression levels of their associated transcription factors and cytokines, secretion levels of their associated cytokines and also related miRNAs expression levels in peripheral blood of patients with AS and their correlation with the disease progression.

Timeline

Start

2017-04-29

Primary completion

2017-11-07

Completion

2018-01-18

Publications

• Background Wang C, Liao Q, Hu Y, Zhong D. T lymphocyte subset imbalances in patients contribute to ankylosing spondylitis. Exp Ther Med. 2015 Jan;9(1):250-256. doi: 10.3892/etm.2014.2046. Epub 2014 Nov 4.
• Background Jethwa H, Bowness P. The interleukin (IL)-23/IL-17 axis in ankylosing spondylitis: new advances and potentials for treatment. Clin Exp Immunol. 2016 Jan;183(1):30-6. doi: 10.1111/cei.12670. Epub 2015 Sep 30.
• Background Wang X, Lin Z, Wei Q, Jiang Y, Gu J. Expression of IL-23 and IL-17 and effect of IL-23 on IL-17 production in ankylosing spondylitis. Rheumatol Int. 2009 Sep;29(11):1343-7. doi: 10.1007/s00296-009-0883-x. Epub 2009 Feb 27.
• Background Rao TS, Basu N, Siddiqui HH. Anti-inflammatory activity of curcumin analogues. Indian J Med Res. 1982 Apr;75:574-8. No abstract available.
• Background Gupta SC, Patchva S, Aggarwal BB. Therapeutic roles of curcumin: lessons learned from clinical trials. AAPS J. 2013 Jan;15(1):195-218. doi: 10.1208/s12248-012-9432-8. Epub 2012 Nov 10.
• Background Lv Q, Li Q, Zhang P, Jiang Y, Wang X, Wei Q, Cao S, Liao Z, Lin Z, Pan Y, Huang J, Li T, Jin O, Wu Y, Gu J. Disorders of MicroRNAs in Peripheral Blood Mononuclear Cells: As Novel Biomarkers of Ankylosing Spondylitis and Provocative Therapeutic Targets. Biomed Res Int. 2015;2015:504208. doi: 10.1155/2015/504208. Epub 2015 Jul 26.
• Background Du C, Liu C, Kang J, Zhao G, Ye Z, Huang S, Li Z, Wu Z, Pei G. MicroRNA miR-326 regulates TH-17 differentiation and is associated with the pathogenesis of multiple sclerosis. Nat Immunol. 2009 Dec;10(12):1252-9. doi: 10.1038/ni.1798. Epub 2009 Oct 18.

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