B淋巴细胞在与代谢功能障碍相关的脂肪性肝病中的多面性作用
1Department of Pharmacology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
Frontiers in immunology
|October 7, 2024
概括
适应性免疫细胞,特别是B细胞,在代谢功能障碍相关的脂肪性肝病 (MASLD) 中发挥着重要作用. 研究表明,B细胞可以恶化MASLD/MASH,但某些子集可能会提供保护.
科学领域:
- 免疫学 免疫学 免疫学
- 肝病学 肝病学是一种肝病学.
- 代谢疾病 代谢疾病
背景情况:
- 适应性免疫细胞,特别是B细胞,越来越多地被认为是代谢功能障碍相关的脂肪性肝病 (MASLD) 的关键参与者.
- 肝脏内B细胞积累与患者的MASLD活性评分相关,并且在代谢功能障碍相关的脂肪肝炎 (MASH) 的实验模型中观察到.
研究的目的:
- 审查在MASLD和MASH中B细胞功能背后的分子机制.
- 讨论B细胞的多方面的作用,包括致病和潜在的保护功能,在肝脏疾病的背景下.
主要方法:
- 关于B细胞参与MASLD和MASH的现有文献的综述.
- 分析患者肝脏活检和实验动物模型的研究结果.
主要成果:
- 肝脏内B2细胞通过激活其他免疫细胞并产生致病性IgG来促进MASLD/MASH.
- 在小鼠中B2细胞的枯竭减少了脂肪肝炎和肝纤维化.
- 肠道B细胞在MASH中促进T细胞激活,而来自B细胞的IgA可以激活导致纤维化的巨细胞.
- 某些B细胞子集,潜在的调节性B细胞,可能对MASLD产生保护作用.
结论:
- 在MASLD和MASH的发病和进展中,B细胞表现出复杂而多样化的作用.
- 了解这些多样化的B细胞功能对于开发针对性肝病治疗方法至关重要.
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