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使用基因多样化的小鼠探测多发性硬化症疾病异质性的基础

Emily A Holt, Anna Tyler, Taylor Lakusta-Wong

bioRxiv : the preprint server for biology

|June 19, 2024

概括

遗传变异影响多发性硬化症 (MS) 的进展. 研究人员使用协作交叉小鼠模型来识别与各种疾病表现和严重程度相关的新遗传位点,提供了对MS异质性的见解.

科学领域:

遗传学是一个遗传学.
免疫学免疫学免疫学
神经科学是一个神经科学.

背景情况:

多发性硬化症 (MS) 在疾病过程和进展方面表现出显著的异质性.
多发性硬化症疾病进展的遗传基础尚未得到充分理解.
现有的遗传研究主要集中在MS风险上,而不是进展.

研究的目的:

调查MS中疾病进展异质性的遗传基础.
扩大实验性自身免疫脑膜炎 (EAE) 模型的表型谱.
确定控制EAE严重程度,轨迹和呈现的遗传位置.

主要方法:

利用协作十字架 (CC),一个基因多样化的小鼠面板.
研究了32个CC菌株的实验性自身免疫脑膜炎 (EAE).
采用了定量特征位置 (QTL) 分析和机器学习方法.

主要成果:

观察到广泛的EAE表型,包括渐进的,单相的和复发缓解的过程.
确定了不同EAE表型的独特遗传联系模式.
优先候选基因 (Abcc4,Gpc6,Yap1,Dync2h1) 与EAE严重程度和轴向旋转EAE相关.

结论:

遗传变异驱动了在MS疾病过程中观察到的异质性.
已经确定了控制独特EAE表型的新型局部.
这项研究为了解多发性硬化症进展的遗传结构提供了基础.

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