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在青少年皮肤肌炎中中性粒细胞激活:与肌肉功能和疾病进展的关联
Jia Shi1,2, Yang Wu1,2, Aviya L Levy3,4
1Division of Rheumatology, University of Washington, Seattle, WA, USA.
Pediatric rheumatology online journal
|October 11, 2025
概括
卡尔蛋白蛋白和骨髓氧化酶 (MPO) -DNA复合体显示为青少年皮质肌炎 (JDM) 肌肉炎症的生物标志物具有前途. 升高的水平与疾病活动相关,并预测JDM患者随着时间的推移改善肌肉力量.
科学领域:
- 儿科风湿病学 儿科风湿病学
- 免疫学 免疫学 免疫学
- 生物标志物发现发现
背景情况:
- 青少年皮肤肌炎 (JDM) 是一种影响肌肉的全身性炎症性疾病.
- 了解JDM的病原体和确定可靠的生物标志物对于有效的管理至关重要.
- 中性粒细胞激活与JDM有关,但特定的标记物需要进一步研究.
研究的目的:
- 评估calprotectin和髓氧化酶 (MPO) -DNA复合物的临床实用性,作为JDM肌肉炎症的生物标志物.
- 评估这些中性粒细胞激活标记与JDM患者的疾病严重程度和肌肉功能之间的关联.
- 确定这些标志物是否可以预测JDM的纵向肌肉结果.
主要方法:
- 血中calprotectin和MPO-DNA水平使用ELISA测量了JDM患者,青少年异常性关节炎 (JIA) 患者和健康对照 (HCs) 的血水平.
- 临床评估包括儿童肌炎评估量表 (CMAS),医生全球评估 (PGA) 和手动肌肉测试8 (MMT8).
- 进行了统计分析,包括相关性和ROC分析,以评估生物标志物的实用性.
主要成果:
- 与HC相比,JDM患者的血calprotectin和MPO-DNA水平显著更高.
- 卡尔蛋白蛋白水平与肌肉功能得分 (CMAS,MMT8) 和PGA肌肉得分有显著的相关性.
- 这两种标志物的基线水平升高与更大的疾病活动有关,并预测随着时间的推移,肌肉力量 (MMT8分数) 得到改善.
结论:
- 卡尔蛋白蛋白和MPO-DNA是评估JDM肌肉炎症和功能结果的潜在生物标志物.
- 中性粒细胞的激活似乎在JDM的发病过程中起着重要作用.
- 这些标志物可能为疾病监测和指导JDM治疗策略提供有价值的见解.
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