There is evidence that neutrophil functions such as chemotaxis and oxygen radical formation are disturbed in rheumatoid arthritis (RA). Medication might also influence these functions. Cyclic formation and depolymerisation of actin microfilaments is crucial in cell motility, but this phenomenon has not been studied in RA. The aim of this study was to investigate basal and dynamic (formyl-methionyl-leucyl-phenylalanine (fMLP)-induced) neutrophil actin polymerisation in ten RA patients (a) during therapy with non-steroidal anti-inflammatory drugs (NSAIDS) and (b) after stopping NSAIDS> The results were compared with those of ten age-matched controls. Basal F-actin content in RA patients with NSAIDS was significantly lower than in RA patients without NSAIDS and controls35.5 (25.0-49.0), 50.5 (27.0-75.0) and 52.5 (32.0-85.0), respectively. Conversely, upon stimulation with fMLP, the actin polymerisation curve of RA patients with NSAIDS was higher than for RA patients without NSAIDS and controls. These results suggest that, in RA, the effects orf NSAIDS on neutrophil functions might be related to changes in the actin polymerisation-depolymerisation cycle.

译文

有证据表明,类风湿性关节炎 (RA) 的中性粒细胞功能 (例如趋化性和氧自由基形成) 受到干扰。药物也可能影响这些功能。肌动蛋白微丝的循环形成和解聚对细胞运动至关重要,但尚未在RA中研究这种现象。这项研究的目的是研究10名RA患者 (a) 在非甾体类抗炎药 (nsaid) 治疗期间的基础和动态 (甲酰基-甲硫氨酸-亮氨酸-苯丙氨酸 (fMLP) 诱导的) 中性粒细胞肌动蛋白聚合反应 (a) 和 (b) 停止nsaid后的结果进行比较有十个年龄匹配的对照。患有NSAIDS的RA患者的基础F-肌动蛋白含量显着低于没有NSAIDS和对照组的RA患者35.5 (25.0-49.0),50.5 (27.0-75.0) 和52.5 (32.0-85.0)。相反,用fMLP刺激后,患有NSAIDS的RA患者的肌动蛋白聚合曲线高于没有NSAIDS的RA患者和对照组。这些结果表明,在RA中,orf nsaid对中性粒细胞功能的影响可能与肌动蛋白聚合-解聚周期的变化有关。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录