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Updated: Jan 27, 2026
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Using Caenorhabditis elegans as a Model System to Study Protein Homeostasis in a Multicellular Organism
Published on: December 18, 2013
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Differences in protein expression associated with ivermectin resistance in Caenorhabditis elegans
Dauana Mesquita Sousa1, Nivea Maria Ferreira da Cunha2, Deisianne Rodrigues da Silva2
1Laboratório de Doenças Parasitárias, Programa de Pós-graduação em Ciências Veterinárias, Faculdade de Veterinária, Universidade Estadual do Ceará - UECE, Fortaleza, CE, Brasil.
Summary
This study identified molecular targets of ivermectin resistance in Caenorhabditis elegans. Resistant nematodes showed increased expression of proteins involved in metabolism, muscle function, signaling, and embryo development.
Area of Science:
- Molecular Biology
- Parasitology
- Biochemistry
Background:
- Synthetic anthelmintics like ivermectin are crucial for parasite control.
- Widespread use of ivermectin drives the evolution of drug resistance in parasite populations.
- Understanding the molecular basis of ivermectin resistance is essential for developing sustainable control strategies.
Purpose of the Study:
- To identify the molecular targets and mechanisms underlying ivermectin resistance in the model organism Caenorhabditis elegans.
- To compare protein expression profiles between ivermectin-sensitive and ivermectin-resistant C. elegans lineages.
Main Methods:
- Protein extraction from sensitive and resistant C. elegans lineages.
- Separation and visualization of proteins using SDS-PAGE and two-dimensional electrophoresis.
- Identification of differentially expressed proteins via mass spectrometry (NanoESI-Q-TOF, MASCOT®), followed by Gene Ontology (GO) enrichment and STRING® interaction analyses.
Main Results:
- Increased expression of proteins involved in high metabolic activity, including ATP-2 and ENOL-1 (ATP synthesis).
- Upregulation of proteins associated with muscular function (MLC-1, ACT-1, PDI-2), signaling (FAR-1, FAR-2), and embryo development (VHA-2) in resistant lineages.
- Protein interaction analysis revealed that identified proteins in resistant nematodes are part of the same ivermectin-induced pathway.
Conclusions:
- The study elucidates key molecular players contributing to ivermectin resistance in C. elegans.
- Identified proteins suggest that altered metabolic and cellular functions are central to ivermectin resistance mechanisms.
- Findings provide a foundation for further research into ivermectin resistance and potential therapeutic interventions.
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