患有Modic型1变化的腰部疼痛患者表现出明显的细菌和非细菌亚型
I Heggli1,2, T Mengis1,2, C J Laux3
1Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Osteoarthritis and cartilage open
|February 7, 2024
概括
慢性腰部疼痛中的Modic类型1变化可能有两种亚型:细菌性,由高Cutibacterium表示,非细菌性,具有低C. acnes. 这一发现表明,对于这些慢性腰部疼痛亚型,需要不同的治疗方法.
科学领域:
- 脊柱成像和病理学 脊柱成像和病理学
- 骨髓病变的微生物学
- 慢性疼痛的免疫学
背景情况:
- 模式型1变化 (MC1) 是慢性下背痛 (CLBP) 患者的骨髓病变,原因不明.
- 目前对MC1的治疗方法没有解决潜在的病理机制.
- 一个假设表明,MC1存在两种生物亚型:细菌和非细菌.
研究的目的:
- 调查Modic类型1变化中的细菌和非细菌亚型的潜在存在.
- 为了确定Cutibacterium acnes (C. acnes) 是否与MC1病变中的不同免疫反应有关.
- 为了为患有MC1.1的CLBP患者提供有针对性的治疗方法的开发信息.
主要方法:
- 使用16S qPCR.在MC1和控制脊椎相邻的椎间盘 (IVD) 组织中量化C. acnes基因组副本数 (GCNs).
- 在MC1和对照组中通过RNA测序和免疫测试对骨髓 (BM) 的转录和细胞因子分析.
- 评估C. acnes GCNs与血细胞因子水平之间的关联.
主要成果:
- 邻近MC1的IVD组织呈现低 (<870) 或高 (>870) 的C. acnes GCNs.
- 患有高C. acnes的MC1患者在BM中显示出高调节的先天免疫特征和促炎细胞因子.
- 低C. acnes的MC1患者表现出增加的适应性免疫特征和血IL-13的升高.
结论:
- 这项研究提供了第一个证据,在CLBP患者的Modic类型1变化中,有明显的细菌 (C. acnes高) 和非细菌 (C. acnes低) 亚型.
- 这些发现支持了两个MC1亚型的假设,每个与不同的免疫反应相关.
- 区分MC1亚型对于开发针对性和有效的慢性腰痛治疗策略至关重要.
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