数据日期 2026-10-29 · 生成时间 2026-10-29 06:03
证据级别：摘要级。本条依据 PubMed 结构化摘要与元数据撰写，付费墙全文未获取、未逐节核验，本站未做任何数值推算补全。
研究问题
Recent genome-wide association studies have identified numerous Alzheimer's disease (AD) risk genes enriched in microglia, including Crk-associated substrate (Cas) scaffold protein family member 4 (CASS4), which encodes the adaptor protein CASS4.
方法
Despite its strong genetic association with AD, the role of CASS4 in disease remains poorly understood.
核心结论
Here, we show that full-body Cass4 deletion in 5xFAD mice increases amyloid-β (Aβ) deposition, neuronal dystrophy, and cognitive deficits.；Since microglia are the predominant brain-resident cells expressing Cass4, we investigated its role in microglial responses to Aβ pathology.；Loss of CASS4 impaired microglial mobilization to Aβ plaques and reduced plaque compaction.；Phosphoproteomic analysis of purified microglia revealed marked disruption of focal adhesion signaling following Cass4 deletion. ‖ 结论：Consistent with this, CASS4 deficiency abrogated in vivo microglial recruitment to injury and in vitro wound healing responses, two processes that are centrally orchestrated by focal adhesion biology.
局限
未能获取全文，具体设计细节、失访与统计学处理无法核验。
对本项目的价值
★★☆☆☆ 脑老化是最大未满足需求，也是终点最难量化的领域；biomarker 与认知读数选择最敏感。
原文题录
- 英文标题：Alzheimer's genetic risk factor CASS4 controls microglial focal adhesion biology and amyloidosis.
- 期刊与标识：J Exp Med · PMID 42944718 · DOI 10.1084/jem.20260104**
B 级证据分级：B 级（同行评议临床前研究，主要为动物模型）
本文核心结论来自动物模型或体外细胞学，属临床前证据，不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义，与人类临床结局之间仍有距离。
关于本文的文献来源：本站依据 IMA 知识库「五刊监控·深度文献卡片」（SOP §4.2 摘要级）撰写，依据期刊公开摘要与 PubMed 元数据；付费墙全文未获取之处已标注「待补全文」，未做任何数值推算补全。