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Farnesol Inhibits PI3 Kinase Signaling and Inflammatory Gene Expression in Primary Human Renal Epithelial Cells

Aline Müller1, Maria Lozoya2, Xiaoying Chen1

  • 1Department of Geriatric Medicine, RWTH Aachen University Hospital, 52074 Aachen, Germany.

Biomedicines
|December 23, 2023
PubMed

Insights

Farnesol, a natural compound, shows anti-inflammatory effects in kidney cells by inhibiting key inflammatory pathways. This suggests farnesol may be a potential treatment for chronic kidney disease (CKD).

Area of Science:

  • Nephrology
  • Pharmacology
  • Cell Biology

Background:

  • Chronic inflammation and elevated cytokines are hallmarks of chronic kidney disease (CKD) progression, leading to complications and mortality.
  • Natural compounds with anti-inflammatory properties are being explored as complementary therapies for CKD.

Purpose of the Study:

  • To investigate the potential anti-inflammatory effects of the natural compound farnesol.
  • To evaluate farnesol's impact on inflammatory signaling in primary human renal proximal tubule epithelial cells (RPTECs).

Main Methods:

  • Farnesol was encapsulated in small unilamellar vesicles (SUVs) to enhance solubility.
  • Cell attachment of empty and farnesol-loaded SUVs was confirmed using fluorescent dye.
  • Protein, RNA, and phosphorylation arrays were employed to analyze inflammatory signaling pathways in RPTECs.

Main Results:

  • Farnesol significantly inhibited TNF-α/IL-1β-induced phosphorylation of the PI3 kinase p85 subunit.
  • Farnesol suppressed the transcriptional activation of inflammatory genes including TNFRSF9, CD27, and FAS.
  • These findings demonstrate farnesol's ability to modulate key inflammatory mediators in kidney cells.

Conclusions:

  • Farnesol exhibits promising anti-inflammatory properties relevant to chronic kidney disease.
  • Farnesol's mechanism involves inhibiting the PI3K/Akt pathway and downstream inflammatory gene expression.
  • Farnesol represents a potential natural therapeutic agent for managing CKD.
Keywords:
IL-1βPI3KTNF-αfarnesolhumannanoliposomesrenal proximal tubule epithelial cells

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