Circulating mir-99b-5p as a predictor of erosion progression in early rheumatoid arthritis: a 1-year follow-up study by hr-pqct
Other conference paper


引用次數
替代計量分析
.

其它資訊
摘要Background: Bone erosion is a key feature of RA reflecting both disease severity and progression. HR-pQCT is an in-vivo clinical imaging system allowing detailed analysis of bone structure, including bone erosion. Several circulating microRNAs have already been suggested as potential biomarkers in RA.

Objectives: To determine whether plasma cell-free circulating miRNAs are 1) associated with bone erosion at presentation and 2) predictive of erosion progression at 12 months as determined by HR-pQCT in patients with early rheumatoid arthritis (ERA).

Methods: In this prospective study, 124 ERA patients were treated with a tight control protocol aiming at remission by using conventional synthetic disease modifying anti-rheumatic drugs (csDMARDs). The second metacarpophalangeal joint (MCP2) was assessed for erosions by HR-pQCT at baseline and after 12 months. Plasma cell-free circulating miRNAs at baseline were identified by microRNA array in 10 treatment-naïve ERA patients with maximal erosion volume at MCP2; in 10 treatment-naïve ERA patients without erosion; and in 6 age- and sex-matched healthy controls. The 4 most dysregulated miRNAs were identified by TaqMan® qRT-PCR in these same 20 ERA patients. Thereafter, the expression of these 4 selected miRNAs was validated in all 124 ERA patients at baseline.

Results: Of the 377 screened miRNAs, 155 miRNAs were detectable. 94 (60.6%) of these detectable miRNAs were upregulated in ERA patient with erosions, with 13 (8.4%) upregulated more than twofold. 61 (39.4%) miRNAs were downregulated in ERA patients with erosions, with 6 (3.9%) downregulated more than twofold. A total of 16 miRNAs were differentially expressed (P<0.05) and 4 were possibly differentially expressed (P ≤0.1) between ERA patients with and without erosions. At baseline, expressions of miR-143–3p, miR-145–5p and miR-99b-5p were significantly higher in ERA patients with erosions than those without erosions (P<0.05 for all). After 12 months of csDMARDs treatment, 31.7%, 47.7%, and 20.6% of the ERA patients had erosion progression, stable erosion and partial erosion repair respectively. Logistic regression analysis revealed baseline expression of miR-99b-5p to be an independent predictor of erosion progression at 12 months (Exp [B]= 4.203, 95% CI 1.166–15.147, P=0.028) (table 1).
著者J.Yue, J. F. Griffith, J. Xu, F. Xiao, L. Shi, D. Wang, P. C. Wong, E. K. Li, M. Li, T. K. Li, T. Y. Zhu, V. Hung, L. Qin, L.-S. Tam
會議名稱Annual European Congress of Rheumatology
會議開始日13.06.2018
會議完結日16.06.2018
會議地點Amsterdam
會議國家/地區荷蘭
會議論文集題名Annals of the Rheumatic Diseases - Annual European Congress of Rhemmatology
出版年份2018
月份6
卷號77
期次Supplement 2
出版社BMJ
語言英式英語

上次更新時間 2020-10-10 於 01:11