Changes and clinical significance of microRNA-146b and signal transducer and transcriptional activator 1/3 in male primary gouty arthritis
10.3760/cma.j.cn141217-20221124-00481
- VernacularTitle:微RNA-146b信号转导及转录激活因子1与3在男性原发性痛风性关节炎中的变化及其临床意义
- Author:
Zeng ZHANG
1
;
Peng WANG
;
Jianwei GUO
;
Tianyi LEI
;
Quanbo ZHANG
;
Shaowei NIU
;
Xia LIAO
;
Yufeng QING
Author Information
1. 川北医学院附属医院高尿酸血症与痛风研究中心，南充 637000
- Keywords:
Arthritis, gouty;
Male;
MicroRNAs;
STAT1 transcription factor;
STAT3 transcription factor
- From:
Chinese Journal of Rheumatology
2023;27(6):385-392
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To This study was to investigate the expression and possible clinical significance of microRNA-146b (miR-146b) and signal transducer and transcriptional activator 1 and 3 (STAT1/3) in peripheral blood mononuclear cells (PBMCs) of patients with primary gouty arthritis (GA).Methods:The peripheral blood samples, clinical data and laboratory indexes of 120 male cases of GA [including 57 cases of acute (AG group) and 63 cases of intermittent (IG group)]and 66 healthy subjects (HC group) were collected. The expression levels of miR-146b and STAT1/3 in PBMCs were detected by real-time fluorescence quantitative PCR (RT-qPCR). The differences among the three groups were compared and the correlation between them and clinical indexes was analyzed. The receiver operating characteristic curve (ROC) was constructed to evaluate its diagnostic value in GA. After the PBMCs of 18 healthy subjects were stimulated by 100 μg/ml MSU for 3 hours to simulate acute gout inflammatory environment, the transcriptional changes of IL-1β, miR-146b and STAT1/3 were detected by RT-qPCR, and the expressions of IL-1β, STAT1/3 protein and phosphorylated protein were detected by Western blotting. T test or one-way ANOVA and LSD- t test were used in accordance with the normal measurement data, Kruskal-Wallis H and Mann-Whitney U test were used in the non-normal data, Spearman correlation analysis was used in the correlation between variables, and the diagnostic value was evaluated by the receiver working characteristic curve ROC. Results:①There were statistical differences in the expression of miR-146b, STAT1 and STAT3 among the three groups ( F=7.02、19.52、17.07, all P<0.001). The expression of miR-146b in gout group [(0.32±0.28)] was significantly higher than that in HC group (0.19±0.18)( t=2.96, P=0.003), while STAT1(0.019±0.012) and STAT3(0.014±0.010) were significantly lower than those in HC group (0.038±0.029),(0.025±0.016)( t=6.26, 5.56, both P<0.001). Further subgroup analysis showed that the expression of miR-146b in AG and IG groups was higher than that in HC group[(0.27±0.17), (0.38±0.35), (0.19±0.18), t=2.09, 3.30, both P<0.05], but that in AG group was lower than that in IG group ( t=2.02, P<0.05). The expression of STAT1 mRNA in AG and IG groups was lower than that in HC group [(0.020±0.012), (0.019±0.012), (0.038±0.029), t=4.89, 4.56, both P<0.001], but there was no statistical significance between AG and IG groups ( t=0.24, P>0.05). The expression of STAT3 mRNA in AG and IG groups was lower than that in HC group [(0.016±0.012), (0.012±0.008), (0.025±0.016), t=5.64, 3.33, both P<0.01], and the expression of STAT3 mRNA in AG group was higher than that in IG group ( t=2.12, P<0.05). ② Spearman correlation analysis showed that the expression of miR-146b in GA was negatively correlated with HCY ( r=-0.37, P=0.014), STAT1 was negatively correlated with Crea ( r=-0.29, P=0.019), positively correlated with eGFR ( r=0.25, P=0.047), and STAT3 was negatively correlated with HDL-C ( r=-0.27, P=0.033). ③ROC curve showed that the AUC (95% CI) of miR-146b, STAT1 and STAT3 were 0.679(0.582, 0.776), 0.710(0.629, 0.791) and 0.705(0.626, 0.783), and the combined AUC(95% CI) of the three was 0.836 (0.765, 0.907). ④Compared with blank control group and negative control group, the expression of miR-146b in PBMCs of 18 cases of HC was significantly decreased ( H=14.44, P=0.003), while the expression of IL-1β, STAT1 and STAT3 mRNA was significantly increased after 3 h of MSU stimulation ( H=26.44、27.26、15.90, all P<0.001). The expression of IL-1β, STAT1 and STAT3 protein and phosphorylated protein in the model group were significantly higher than those in the blank control group, and the differences were statistically significant ( t=9.97、6.63、7.48、11.25、6.28, all P<0.01). Conclusion:The abnormal expression of miR-146b and STAT1/3 in GA is related to some clinical indicators, suggesting that it may be involved in the regulation of gout immune inflammatory response and metabolism, and the specific mechanism is worth further study.
