Novel therapeutic drug identification and gene correlation for fatty liver disease using high-content screening:

Wei-Jia Luo1, Ting-Yu Cheng1, Keng-Ieng Wong1

  • 1Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan.

Insights

Researchers screened 1280 compounds to find new drugs for non-alcoholic fatty liver disease (NAFLD). Five compounds effectively reduced liver fat and showed potential therapeutic mechanisms, offering hope for future fatty liver disease treatments.

Area of Science:

  • Hepatology and Pharmacology
  • Drug Discovery and Development
  • Genomics and Bioinformatics

Background:

  • Non-alcoholic fatty liver disease (NAFLD) prevalence is rising, particularly in obese individuals, due to high-calorie diets.
  • Effective therapeutic strategies for NAFLD are urgently needed.
  • Identifying novel drug candidates is crucial for developing new treatments.

Purpose of the Study:

  • To identify novel compounds that reduce lipid accumulation in liver cells.
  • To elucidate the molecular mechanisms underlying the efficacy of identified compounds.
  • To explore potential therapeutic targets for fatty liver disease.

Main Methods:

  • High-content screening of the LOPAC® library (1280 compounds) against high-fat medium (HFM)-treated cells.
  • Validation of hit compounds using primary hepatocytes and dose-response studies.
  • Whole genome transcriptomic analysis to identify regulatory networks and pathways.

Main Results:

  • 239 compounds reduced lipid droplets by over 50%, with 5 showing dose-dependent efficacy in primary hepatocytes.
  • Transcriptomic analysis revealed significant gene expression changes after HFM treatment, impacting immune responses (MIF, IL-17, TLR, IL-6).
  • Identified compounds modulate lipogenesis via GSK3β and CREB1, affecting genes related to hepatocellular carcinoma and hepatitis.

Conclusions:

  • This study presents a successful strategy for discovering novel drugs for fatty liver disease.
  • The identified compounds target key pathways like lipogenesis and inflammation, with CREB1 as a potential therapeutic target.
  • The findings support the development of new pharmaceutical therapeutics for NAFLD and related liver conditions.

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