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<p>Ubiquitin and ubiquitin-like proteins (UBLs) have emerged as critical regulators of protein homeostasis and cellular signaling, processes that are increasingly recognized as central to the pathogenesis of Alzheimer’s disease (AD). This review explores the expanding roles of UBL modifiers, including SUMO, NEDD8, ISG15, UFM1, and ATG8/ATG12, in the development and progression of AD. We discuss how these post-translational modifications influence key pathological features of AD such as amyloid-beta accumulation and neurofibrillary tangles formation, as well as their impact on neuronal function, proteostasis, and neuroinflammation. Recent advances in our understanding of the enzymatic machinery mediating these modifications, and the interplay between different UBL proteins, offer new insights into the molecular mechanisms underlying AD. Furthermore, we highlight emerging therapeutic strategies targeting UBL pathways, which may provide novel avenues for intervention in AD. By integrating current findings, this review underscores the significance of UBL proteins in AD and identifies future directions for research aimed at unraveling their complex roles in neurodegeneration.</p> Graphical abstract <p></p>

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The modifier matrix: emerging roles of ubiquitin-like proteins in Alzheimer’s disease

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月8日

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  • Tingxiang Yan,
  • Justine Vaquer,
  • Wolfdieter Springer,
  • Fabienne C. Fiesel

摘要

Ubiquitin and ubiquitin-like proteins (UBLs) have emerged as critical regulators of protein homeostasis and cellular signaling, processes that are increasingly recognized as central to the pathogenesis of Alzheimer’s disease (AD). This review explores the expanding roles of UBL modifiers, including SUMO, NEDD8, ISG15, UFM1, and ATG8/ATG12, in the development and progression of AD. We discuss how these post-translational modifications influence key pathological features of AD such as amyloid-beta accumulation and neurofibrillary tangles formation, as well as their impact on neuronal function, proteostasis, and neuroinflammation. Recent advances in our understanding of the enzymatic machinery mediating these modifications, and the interplay between different UBL proteins, offer new insights into the molecular mechanisms underlying AD. Furthermore, we highlight emerging therapeutic strategies targeting UBL pathways, which may provide novel avenues for intervention in AD. By integrating current findings, this review underscores the significance of UBL proteins in AD and identifies future directions for research aimed at unraveling their complex roles in neurodegeneration.

Graphical abstract