Laboratory Animal and Comparative Medicine ›› 2025, Vol. 45 ›› Issue (6): 738-751.DOI: 10.12300/j.issn.1674-5817.2025.134

• Invertebrate Laboratory Animal: Nematode • Previous Articles     Next Articles

Progress in Caenorhabditis elegans as a Degenerative Disease Model for Molecular Pathways Studying

SUN Han1(), GUO Peng2, YU Xinhe1, ZHANG Junqiao3, YAO Ying4, YANG Wen1()()   

  1. 1.Shanghai Jiao Tong University, School of Medicine, Shanghai 200025, China
    2.Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
    3.Tongji University School of Medicine, Shanghai 200092, China
    4.Shanghai East Hospital, Tongji University, Shanghai 200120, China
  • Received:2025-08-12 Revised:2025-12-05 Online:2025-12-25 Published:2025-12-19
  • Contact: YANG Wen

Abstract:

With the acceleration of population aging in China, the number of patients with degenerative diseases has exceeded ten million, urgently requiring efficient mechanism research and drug screening systems. Caenorhabditis elegans, due to its short life cycle, low cost, and convenient genetic manipulation, has become an important model organism for investigating neurodegenerative diseases. Through heterologous expression of amyloid β-protein (Aβ), α-synuclein (α-Syn), mutant superoxide dismutase 1 (SOD1), etc., or constructing mutants using CRISPR/Cas9 gene editing (clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9, CRISPR/Cas9), typical pathological features of Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and Huntington's disease (HD) can be reproduced in Caenorhabditis elegans. By integrating RNA interference (RNAi) and compound screening, the Caenorhabditis elegans model has revealed core pathological pathways such as proteostasis, autophagy, and mitochondrial function, and identified multiple potential targets. In the future, relying on the unique strengths of Caenorhabditis elegans in genetic operability, phenotypic quantification, and screening scale, combined with cross-species validation using multiple models, a more predictive and translatable degenerative disease research and intervention system is expected to be established.

Key words: Caenorhabditis elegans, Degenerative diseases, Model organism, Neurodegenerative diseases

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