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<p>The ubiquitin–proteasome system (UPS) plays a critical role in protein homeostasis within eukaryotic cells. This review article examines the UPS’s role in neuronal morphology and neurodegeneration through systematic analysis of current research. In neurodegenerative disorders (NDDs) such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS), UPS dysfunction contributes significantly to pathogenesis through accumulation of ubiquitinated misfolded proteins, disruption of cellular proteostasis, impaired substrate ubiquitination, and proteasomal deterioration. The UPS maintains normal central nervous system (CNS) function by regulating protein degradation. When this system fails, cellular proteostasis becomes compromised, accelerating neurodegeneration. Recent research has identified potential interventions for UPS activation through genetic modification and synthetic compounds. This review assesses how specific UPS components could serve as pharmacological targets for treating NDDs. By modulating UPS-mediated genes and pathways, novel therapeutic strategies may emerge for conditions including AD, PD, HD), and ALS. Current evidence suggests the UPS represents a promising therapeutic target for addressing the fundamental protein homeostasis disruptions underlying these devastating neurological conditions. Targeting this system could potentially slow disease progression by restoring proper protein degradation mechanisms and preventing toxic protein accumulation characteristic of NDDs.</p>

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Boosting Brain Clean-Up: Can Targeting UPS Genes Offer Neuroprotection?

  • 期刊论文

  • 发表日期：

    2025年8月16日

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  • Ashi Mannan,
  • Akhil Sharma,
  • Thakur Gurjeet Singh

摘要

The ubiquitin–proteasome system (UPS) plays a critical role in protein homeostasis within eukaryotic cells. This review article examines the UPS’s role in neuronal morphology and neurodegeneration through systematic analysis of current research. In neurodegenerative disorders (NDDs) such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS), UPS dysfunction contributes significantly to pathogenesis through accumulation of ubiquitinated misfolded proteins, disruption of cellular proteostasis, impaired substrate ubiquitination, and proteasomal deterioration. The UPS maintains normal central nervous system (CNS) function by regulating protein degradation. When this system fails, cellular proteostasis becomes compromised, accelerating neurodegeneration. Recent research has identified potential interventions for UPS activation through genetic modification and synthetic compounds. This review assesses how specific UPS components could serve as pharmacological targets for treating NDDs. By modulating UPS-mediated genes and pathways, novel therapeutic strategies may emerge for conditions including AD, PD, HD), and ALS. Current evidence suggests the UPS represents a promising therapeutic target for addressing the fundamental protein homeostasis disruptions underlying these devastating neurological conditions. Targeting this system could potentially slow disease progression by restoring proper protein degradation mechanisms and preventing toxic protein accumulation characteristic of NDDs.