Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Your Environment. Your Health.

Publication Detail

Title: A C. elegans Model for the Study of RAGE-Related Neurodegeneration.

Authors: Pinkas, Adi; Lee, Kun He; Chen, Pan; Aschner, Michael

Published In Neurotox Res, (2019 Jan)

Abstract: The receptor for advanced glycation products (RAGE) is a cell surface, multi-ligand receptor belonging to the immunoglobulin superfamily; this receptor is implicated in a variety of maladies, via inflammatory pathways and induction of oxidative stress. Currently, RAGE is being studied using a limited number of mammalian in vivo, and some complementary in vitro, models. Here, we present a Caenorhabditis elegans model for the study of RAGE-related pathology: a transgenic strain, expressing RAGE in all neurons, was generated and subsequently tested behaviorally, developmentally, and morphologically. In addition to RAGE expression being associated with a significantly shorter lifespan, the following behavioral observations were made when RAGE-expressing worms were compared to the wild type: RAGE-expressing worms showed an impaired dopaminergic system, evaluated by measuring the fluorescent signal of GFP tagging; these worms exhibited decreased locomotion-both general and following ethanol exposure-as measured by counting body bends in adult worms; RAGE expression was also associated with impaired recovery of quiescence and pharyngeal pumping secondary to heat shock, as a significantly smaller fraction of RAGE-expressing worms engaged in these behaviors in the 2 h immediately following the heat shock. Finally, significant developmental differences were also found between the two strains: RAGE expression leads to a significantly smaller fraction of hatched eggs 24 h after laying and also to a significantly slower developmental speed overall. As evidence for the role of RAGE in a variety of neuropathologies accumulates, the use of this novel and expedient model should facilitate the elucidation of relevant underlying mechanisms and also the development of efficient therapeutic strategies.

PubMed ID: 29869225 Exiting the NIEHS site

MeSH Terms: Animals; Animals, Genetically Modified; Caenorhabditis elegans*; Central Nervous System Depressants/pharmacology; Disease Models, Animal*; Dopamine/metabolism; Ethanol/pharmacology; Heat-Shock Response/physiology; Locomotion/drug effects; Locomotion/physiology; Neurodegenerative Diseases/metabolism*; Neurons/metabolism; Receptor for Advanced Glycation End Products/genetics; Receptor for Advanced Glycation End Products/metabolism*; Reproduction/physiology

to Top