Enviromental endocrine disruptor risks in the central nervous system: Neurotoxic effects of PFOS and glyphosate

Environ Toxicol Pharmacol. 2024 Aug:109:104496. doi: 10.1016/j.etap.2024.104496. Epub 2024 Jul 2.

Abstract

Endocrine disruptors (EDs) pose significant risks to human and environmental health, with potential implications for neurotoxicity. This study investigates the synergistic neurotoxic effects of perfluorooctane sulfonate (PFOS) and glyphosate (GLY), two ubiquitous EDs, using SHSY5Y neuronal and C6 astrocytic cell lines. While individual exposures to PFOS and glyphosate at non-toxic concentrations did not induce significant changes, their combination resulted in a marked increase in oxidative stress and neuroinflammatory responses. Specifically, the co-exposure led to elevated levels of interleukin-6, tumor necrosis factor alpha, and interferon gamma, along with reduced interleukin-10 expression, indicative of heightened neuroinflammatory processes. These findings underscore the importance of considering the synergistic interactions of EDs in assessing neurotoxic risks and highlight the urgent need for further research to mitigate the adverse effects of these compounds on neurological health.

Keywords: Immunotoxicology; Neurotoxicology.

MeSH terms

  • Alkanesulfonic Acids* / toxicity
  • Animals
  • Astrocytes / drug effects
  • Astrocytes / metabolism
  • Cell Line
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Cytokines / metabolism
  • Endocrine Disruptors* / toxicity
  • Fluorocarbons* / toxicity
  • Glycine* / analogs & derivatives
  • Glycine* / toxicity
  • Glyphosate*
  • Herbicides / toxicity
  • Humans
  • Neurons / drug effects
  • Neurons / metabolism
  • Oxidative Stress / drug effects
  • Rats

Substances

  • Glycine
  • Glyphosate
  • Fluorocarbons
  • Endocrine Disruptors
  • perfluorooctane sulfonic acid
  • Alkanesulfonic Acids
  • Herbicides
  • Cytokines