基于蛋白质组的等离子体生物标志物用于在素缺乏模型中的认知功能障碍
Vaibhav Singh1,2, Shiv Verma1,2, Eswar Shankar1,2,3
1Department of Urology, Case Western Reserve University, School of Medicine, Cleveland, OH, 44106, USA.
Molecular neurobiology
|November 28, 2025
概括
抗雄激素剥夺疗法 (ADT) 在前列腺癌患者中引起认知功能障碍. 这项研究在小鼠中确定了特定的血液生物标志物,这些生物标志物可能有助于监测ADT相关的认知衰退.
科学领域:
- 神经科学是一个神经科学.
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- 雄激素剥夺疗法 (ADT) 是前列腺癌的标准治疗方法.
- ADT可能导致显著的认知功能障碍,影响记忆,学习和决策.
- 需要可靠的生物标志物来评估ADT的认知影响.
研究的目的:
- 识别和验证与ADT诱导的认知功能障碍相关的生物标志物.
- 研究ADT对大脑结构,功能和新陈代谢的影响.
- 探索基于血液的生物标志物的潜力,以监测认知变化.
主要方法:
- 研究人员使用了一种小鼠模型,给它们注射恩扎胺 (一种抗雄激素) 来模拟ADT.
- 进行了行为测试,18F-FDG PET扫描,组织学分析和蛋白质组分析 (nLC-MS/MS).
- 在脑组织中表达变化的蛋白质在血中进一步得到验证.
主要成果:
- 恩扎胺治疗引发了行为变化,包括注意力缺陷和社会活动减少.
- 在接受治疗的小鼠的大脑中观察到葡萄糖代谢变化和神经元损伤 (密度下降,星球细胞胀).
- 蛋白质组分析确定了大脑中29种不同表达的蛋白质,其中9种在接受治疗的小鼠的血中被验证为升高.
结论:
- ADT显著影响认知功能和大脑健康.
- 血中的特定蛋白质 (Pum2,Mcur1,Slc39a14,Fbxo7,Myo10,Arl6ip1,Slc8a3,Mt1,Mt3) 显示出可能成为ADT诱导的认知功能障碍的生物标志物.
- 血液生物标志物可以提供一种非侵入性方法,用于监测接受ADT的前列腺癌患者的认知衰退.
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