在慢性型肝炎的直接作用抗病毒治疗后,肝脏微环境的变化
medRxiv : the preprint server for health sciences
|March 4, 2025
概括
即使在用直接作用抗病毒药物 (DAA) 成功治疗型肝炎病毒 (HCV) 后,持续的炎症和纤维化也表明不良结果的风险更高. 密切监测这些患者可以改善预后和个性化护理.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
背景情况:
- 直接作用抗病毒药物 (DAA) 已经彻底改变了C型肝炎病毒 (HCV) 治疗,实现了高治愈率.
- 很少有研究研究了DAA治疗对肝脏微环境的影响.
- 实现持续病毒反应 (SVR) 的患者仍然可以发展出肝硬化和肝细胞癌等不良结果.
研究的目的:
- 在DAA治疗前后的肝活检中分析基因和蛋白质表达.
- 确定与疾病进展和HCV治疗后不良临床结果相关的分子特征.
- 了解病毒清除后肝脏免疫微环境的变化.
主要方法:
- 从22名患者的肝脏活检分析了DAA治疗前和后的情况.
- 进行了大约770个基因的基因表达分析.
- 多谱成像和机器学习被用来表型肝内巨细胞和T细胞.
主要成果:
- 基线活检揭示了明显的炎症基因表达模式,在有不良结果的患者中,炎症和晚期纤维化程度较高.
- 达到SVR导致肝酶降低,炎症减少,并恢复干扰素通路.
- 尽管有SVR,但患有持续高的促炎基因表达的患者表现较差,观察到显著的淋巴细胞透.
结论:
- 患有治疗前炎症和晚期纤维化症的患者需要密切监测不良结果,即使在SVR之后.
- 将基因和蛋白质表达与临床数据相结合,可以增强风险分层.
- 个性化监测和治疗策略可以根据个体患者的个人资料来制定.
相关概念视频
01:10Retrovirus Life Cycles
45.5K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
45.5K
01:20Lipid-Lowering Drugs: Statins and Miscellaneous Agents
506
Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
506