Targeting the CSF-1/CSF-1R Axis: Exploring the Potential of CSF1R Inhibitors in Neurodegenerative Diseases.

J Med Chem

Department of Pharmacy, Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.

Published: April 2024

AI Article Synopsis

  • Researchers are exploring CSF1R inhibitors as potential treatments for neuroinflammatory diseases like Alzheimer's disease.
  • A modified compound was developed that shows strong selectivity and effectiveness in inhibiting CSF1R, which plays a role in neuroinflammation.
  • One of the newly synthesized compounds demonstrated significant anti-inflammatory effects in lab models while showing low toxicity, positioning it as a promising candidate for further research.

Article Abstract

We report herein the potential of colony-stimulating factor-1 receptor (CSF1R) inhibitors as therapeutic agents in neuroinflammatory diseases, with a focus on Alzheimer's disease (AD). Employing a carefully modified scaffold, -(4-heterocycloalkyl-2-cycloalkylphenyl)-5-methylisoxazole-3-carboxamide, we identify highly selective and potent CSF1R inhibitors─ and . Molecular docking studies shed light on the binding modes of these key compounds within the CSF1R binding site. Remarkably, kinome-wide selectivity assessment underscores the impressive specificity of for CSF-1R. Notably, emerges as a potent CSF-1R inhibitor with favorable cellular activity and minimal cytotoxicity among the synthesized compounds. Demonstrating efficacy in inhibiting CSF1R phosphorylation in microglial cells and successfully mitigating neuroinflammation in an LPS-induced model, establishes itself as a promising antineuroinflammatory agent.

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http://dx.doi.org/10.1021/acs.jmedchem.3c02366DOI Listing

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