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单核分析揭示了唐氏综合征基础前脑出生时氧化酸化失调的情况

Nicole R West^1,2, Kalpana Hanthanan Arachchilage¹, Sara Knaack¹

¹Waisman Center, University of Wisconsin-Madison, 1500 Highland Ave., Madison, WI 53705.

bioRxiv : the preprint server for biology

|February 20, 2025

概括

唐氏综合征 (DS) 基础前脑胆能神经元 (BFCNs) 的早期生命变化涉及能量代谢的改变. 这些干扰可能会导致DS患者的神经退行.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
发展生物学发展生物学

背景情况:

基本前脑胆能神经元 (BFCNs) 对于记忆和注意力等认知功能至关重要.
BFCN退化是包括唐氏综合征 (DS) 和阿尔茨海默病在内的神经退行性疾病的标志.
导致BFCN退化的精确机制在很大程度上是未知的.

研究的目的:

研究唐氏综合征患者BFCN的早期分子变化.
在DS的背景下,确定可能导致神经退行症的潜在机制.

主要方法:

在死后人类前脑基底组织上利用单核基因表达和ATAC测序.
分析了从未受影响的对照和0-2岁的DS患者 (每人n=4) 的样本.

主要成果:

确定了早期产后DS基底前脑中显著的基因表达差异.
在DS BFCN中观察到参与能量代谢 (氧化酸化,糖解) 的基因的上调.
在DS BFCNs中发现抗氧化酶基因的表达增加.

结论:

多原子分析表明,DS BFCN中的能量代谢中断可能从出生就存在.
增加的氧化酸化和活性氧物种副产品可能是DS BFCN神经退行症的早期因素.

关键词:

基底前脑胆固醇神经元 (BFCNs) 是一种唐氏综合征是什么意思唐氏综合征葡萄糖溶解是什么? 葡萄糖溶解氧化酸化 (OXPHOS) 是一种反应性氧物种 (ROS) 是一种反应性氧物种.在多元化分析中,多元化分析是多元化的.

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