在患有卡波西肉瘤疹病毒相关疾病的患者中炎症酶激活
Silvia Lucena Lage1, Ramya Ramaswami2, Joseph M Rocco1
1HIV Pathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Blood
|June 28, 2024
概括
卡波西肉瘤疹病毒 (KSHV) 在患有KSHV相关疾病 (KADs) 的患者中激活炎症酶,导致IL-18和酶活性升高. 这种KSHV驱动的炎症提供了新的诊断和治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 在瘤学瘤学.
背景情况:
- 卡波西肉瘤疹病毒 (KSHV) 相关疾病 (KADs),如卡波西肉瘤 (KS),初级输液淋巴瘤 (PEL),多中心卡斯特曼病 (MCD) 和KS炎症性细胞因子综合征 (KICS) 与高炎症性细胞因子有关.
- 炎症酶激活是产生IL-1β和IL-18的关键炎症途径,尚未在KAD中进行研究.
研究的目的:
- 研究KAD患者的炎症酶激活及其与KSHV驱动炎症的关联.
- 为了比较不同KAD亚型和健康对照的炎症酶活性.
主要方法:
- 在艾滋病毒和KAD患者,HIV阴性健康志愿者 (HVs) 和没有KAD的艾滋病毒感染者 (PWH) 中评估了血IL-18水平和单细胞酶-1/4/5活性.
- 分析了PEL患者的炎症组合形成.
- 使用KSHV感染细胞的体外测试来评估旁观单细胞中的炎症酶激活.
主要成果:
- 患有KAD的患者表现出比没有KAD的HV和PWH更高的血IL-18和单细胞酶-1/4/5活性.
- 在KICS和MCD中,卡斯巴-1/4/5活性和IL-18产生增加;在PEL患者中,炎症组复合形成高.
- 卡斯帕酶-1/4/5活性和IL-18水平与KSHV病毒载量相关,表明KSHV驱动的炎症酶激活.
- 在体外研究证实了KSHV诱导的单细胞中的炎症酶激活.
- 与KS相比,在PEL,MCD和KICS中观察到独特的炎症概况.
结论:
- KSHV感染会触发单细胞中的炎症酶激活,导致KADs中有害的炎症.
- 炎症组测量显示了KAD亚型之间明显的炎症特征.
- 准KSHV诱导的炎症酶激活为KADs提供了新的诊断和治疗机会.
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