Luteolin-Loaded Chitosan Nanoparticles Attenuate Fenvalerate-Induced Nephrotoxicity and Humoral Immune Suppression

Ahmed M S Hegazy1, Ayat B Al-Ghafari2,3,4, Huda A Al Doghaither2

  • 1Department of Anatomy, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia.

Insights

Fenvalerate causes kidney damage and immune suppression. LUT-loaded chitosan nanoparticles protected rats by restoring kidney function, reducing oxidative stress, and boosting immunity, showing superior effects to crude luteolin.

Area of Science:

  • Toxicology
  • Nanotechnology
  • Immunology

Background:

  • Fenvalerate (FEV), a pyrethroid insecticide, is known to cause nephrotoxicity and immune suppression.
  • Luteolin (LUT), a natural flavonoid, possesses antioxidant and anti-inflammatory properties.
  • Chitosan nanoparticles (CHNPs) can enhance the bioavailability and delivery of therapeutic agents.

Purpose of the Study:

  • To evaluate the protective effects of crude luteolin (LUT) and LUT-loaded chitosan nanoparticles (LUT-CHNPs) against Fenvalerate (FEV)-induced nephrotoxicity and immune suppression in male Wistar rats.
  • To compare the efficacy of LUT-CHNPs with crude LUT in mitigating FEV toxicity.

Main Methods:

  • Sixty male Wistar rats were divided into six groups and treated orally for 30 days.
  • Groups included: control, LUT, LUT-CHNPs, FEV, FEV + LUT, and FEV + LUT-CHNPs.
  • Biochemical, oxidative stress, inflammatory, apoptotic, and immunological parameters were assessed. Histopathological and ultrastructural analyses were performed.

Main Results:

  • FEV exposure increased renal biomarkers, oxidative stress, pro-inflammatory cytokines, and apoptotic proteins, while decreasing antioxidant enzymes, GSH, NRF2/HO-1, Bcl-2, and immunoglobulins (IgG, IgM).
  • LUT-CHNPs significantly ameliorated FEV-induced alterations, restoring renal function, oxidative balance, and humoral immunity.
  • Histopathology confirmed LUT-CHNPs preserved kidney architecture and mitochondrial integrity, demonstrating superior efficacy over crude LUT.

Conclusions:

  • LUT-loaded chitosan nanoparticles effectively protect against Fenvalerate-induced nephrotoxicity and immune suppression.
  • LUT-CHNPs demonstrate enhanced bioavailability and therapeutic efficacy compared to crude luteolin.
  • This study highlights the potential of nano-formulated luteolin as a protective agent against pesticide-induced organ damage and immune dysfunction.