Session Information
Date: Sunday, November 8, 2015
Title: Cytokines, Mediators, Cell-cell Adhesion, Cell Trafficking and Angiogenesis Poster I
Session Type: ACR Poster Session A
Session Time: 9:00AM-11:00AM
Background/Purpose:
To investigate the role of high mobility group box 1 protein (HMGB1) and the receptor for advanced glycation end products (RAGE) in the pathogenesis of primary gouty arthritis (GA).
Methods:
(1) Enzyme-linked immunosorbent assay(ELISA) was used to determine the level of plasma HMGB1 in 68 acute gout (AG), 48 intercritical gout (IG) and 45 healthy control (HC). (2)Real-time quantitative polymerase chain reaction (RT-qPCR) was employed to study the expression of HMGB1 and RAGE mRNA in peripheral blood mononuclear cells (PBMCs) in 68 AG,48 IG and 94 HC, and the differences of gene expression in two groups were compared .(3)Western blot(WB)was used to measure HMGB1 in PBMCs from 18 AG, 13 IG and 21 HC,REGE in PBMCs from 12 GA and 8 HC, and the otherness of protein expression in two groups were compared .(4)Analysis of T test or Wilcoxon test and Spearman’s correlations were used for statistical analysis.
Results:
The level of plasma HMGB1, PBMCs HMGB1, RAGE mRNA and protein were significantly higher in GA patients than those in HC (plasma HMGB1 (ng/mL): 222.00±178.32 vs 106.99±175.79 vs 23.88±34.05; PBMCs HMGB1 mRNA: 0.235±0.954 vs 0.044±0.117 vs 0.019±0.029; PBMCs RAGE mRAN�F0.0015±0.0035 vs 0.0013±0.0009 vs 0.0005±0.0003; HMGB1 protein:3.59±2.49 vs 1.89±2.00 vs 0.74±0.78�GP<0.05)),while the level of plasma HMGB1 and PBMCs HMGB1 mRNA were significantly higher in AG patients than those in IG patients (P<0.05), the level of PBMCs RAGE protein was higher in GA patients than that in HC (2.94±0.67 vs 1.61±0.51; P<0.05), and the level of PBMCs RAGE mRNA was higher in AG patients than that in IG patients (P>0.05) . In the GA patients, the level of plasma HMGB1 was positively correlated with white blood cell, neutrophile granulocyte, mononuclear cell and erythrocyte sedimentation rate (r=0.34,0.44,0.39,0.33; P<0.05),while negatively correlated with apolipoprotein A1(r=-0.28; P<0.05); the level of PBMCs HMGB1 mRNA was positively correlated with RAGE mRNA, white blood cell counts, neutrophil counts, lymphocyte counts, total cholesterol, low density lipoprotein and apolipoprotein B100 (r=0.29,0.36,0.26,0.28,0.29; P<0.05),while negatively correlated with high density lipoprotein (r=-0.30;P <0.01); the level of PBMCs RAGE mRNA was positively correlated with Lymphocyte counts, total cholesterol and apolipoprotein B100 (r=0.35,0.35,0.44; P<0.05).
Conclusion:
HMGB1 and its signaling pathway might play an important role in the pathogenesis of gouty arthritis, which may also be involved in regulating the lipid metabolism of gout.
To cite this abstract in AMA style:
Qing YF, Zhang QB, Pan SY, Zhou J. Expression of High Mobility Group Box 1 Protein and the Receptor for Advanced Glycation End Products in Primary Gouty Arthritis [abstract]. Arthritis Rheumatol. 2015; 67 (suppl 10). https://acrabstracts.org/abstract/expression-of-high-mobility-group-box-1-protein-and-the-receptor-for-advanced-glycation-end-products-in-primary-gouty-arthritis/. Accessed .« Back to 2015 ACR/ARHP Annual Meeting
ACR Meeting Abstracts - https://acrabstracts.org/abstract/expression-of-high-mobility-group-box-1-protein-and-the-receptor-for-advanced-glycation-end-products-in-primary-gouty-arthritis/