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Ultrasound-Assisted Synthesis of Pyrazoline Derivatives as Potential Antagonists of RAGE-Mediated Pathologies:

Anca-Elena Dascălu1,2,3, Christophe Furman2,4, Steve Lancel2

  • 1Health and Environment, Laboratory of Sustainable Chemistry and Health, Junia, F-59000, Lille, France.

Chemmedchem
|September 17, 2024
PubMed

Insights

New pyrazoline compounds show promise as RAGE antagonists for combating age-related diseases. Compound 2g demonstrated significant potential in blocking receptor activity and inflammation, offering a new therapeutic avenue.

Area of Science:

  • Medicinal Chemistry
  • Pharmacology
  • Aging Research

Background:

  • The receptor of advanced glycation end products (RAGE) is implicated in age-related disorders through inflammation and oxidative stress.
  • Targeting RAGE with antagonists offers a potential strategy for healthy aging and managing age-related conditions.

Purpose of the Study:

  • To explore the structure-activity relationship (SAR) of novel pyrazoline-based RAGE antagonists.
  • To identify potent and safe RAGE antagonists for therapeutic applications in aging.

Main Methods:

  • Ultrasound-assisted green one-pot two-step synthesis of pyrazoline derivatives.
  • In vitro evaluation of RAGE antagonist activity, including AGE2-BSA/sRAGE interaction inhibition.
  • Microscale Thermophoresis (MST) assays for binding affinity determination.
  • Cytotoxicity assessment using the MTS assay.

Main Results:

  • Phenylurenyl-pyrazoline 2g was identified as a lead compound with superior RAGE antagonist efficiency compared to Azeliragon.
  • Compound 2g showed potent inhibition of AGE2-BSA/sRAGE interaction (IC50=22 μM) and favorable binding affinity (Kd=17.1 μM).
  • No significant cytotoxicity was observed for compound 2g in vitro.

Conclusions:

  • Pyrazoline-derived compounds, particularly 2g, represent promising therapeutic agents for RAGE-mediated age-related disorders.
  • The developed green synthesis methodology offers an efficient route to novel RAGE antagonists.
  • Further investigation into these pyrazoline derivatives could lead to effective interventions for healthy aging.
Keywords:
AntagonistGreen SynthesisInflammagingPhenylurenyl PyrazolineRAGESonication

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