这种细菌是Mycobacterium avium亚种. 意大利患有炎症性肠病 (IBD) 和刺激性肠综合征 (IBS) 患者的副结核病和人类内源性逆转录病毒
Stefano Ruberto1,2, Alfredo Santovito3, Gian P Caviglia4
1Division of Microbiology and Virology, Department of Biomedical Sciences, University of Sassari, Sassari, Italy.
Immunology
|April 4, 2025
概括
这项研究发现,炎症性肠病 (IBD) 患者对Mycobacterium avium亚种结核病 (MAP) 和人类内源性逆转录病毒 (HERVs) 的免疫反应增加. 基因组损伤,由微核表示,与IBD中的这些免疫反应相关.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- 炎症性肠病 (IBD),包括性结肠炎 (UC) 和克罗恩病 (CD),以及刺激性肠综合征 (IBS) 是不同的胃肠道疾病.
- 杆菌 (MAP) 是IBD的一个可疑因素,同时正在探索人类内源逆转录病毒 (HERVs) 的作用.
研究的目的:
- 研究IBD和IBS患者对MAP-3865c,HERV-K包裹和HERV-W包裹表位的幽默免疫反应.
- 为了确定IBD患者中微核 (MNi) 的频率.
- 评估IBD患者的基因组损伤和幽默反应之间的相关性.
主要方法:
- 对MAP 3865c,HERV-K env和HERV-W env的抗体标位测量了来自102名IBD患者,20名IBS患者和92名健康对照者的血.
- 在IBD患者中评估了微核 (MNi) 频率.
- 分析了MNi频率,幽默反应和患者基因型概况 (特别是TNF-α) 之间的相关性.
主要成果:
- IBD患者对MAP 3865c的抗体反应升高,特别是那些具有TNF-α GA基因型的患者.
- 在IBD患者中,MNi频率和抗MAP3865cIgG水平之间发现了正相关性.
- 与HC患者相比,IBD和IBS患者对HERV-K env的抗体反应较高,IBD患者的MAP 3865c和HERV-K env反应之间存在正相关性.
- 在IBS患者中,抗HERV-W病毒的抗体水平高于HC患者.
结论:
- UC和CD与针对MAP和HERV-K的免疫反应有关.
- 特定的遗传特征可能会使炎症恶化,并放大IBD患者的基因组损伤,这是MNi频率所证明的.
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