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Rho-Kinase as a Therapeutic Target for Nonalcoholic Fatty Liver Diseases

Inês Sousa-Lima1, Hyun Jeong Kim2, John Jones3

  • 1CEDOC-Chronic Disease Research Center, NOVA Medical School/ Faculty of Medical Sciences, New University of Lisbon, Lisbon, Portugal.

Diabetes & Metabolism Journal
|October 6, 2021
PubMed

Insights

Nonalcoholic fatty liver disease (NAFLD) is a prevalent condition. Blocking Rho-kinase (ROCK) shows promise in treating fatty liver by regulating lipid accumulation and de novo lipogenesis.

Area of Science:

  • Hepatology
  • Metabolic disease research
  • Molecular biology

Background:

  • Nonalcoholic fatty liver disease (NAFLD) affects 25% of the global population, posing a significant public health challenge.
  • While linked to obesity and insulin resistance, NAFLD pathogenesis is not fully understood.
  • Rho-kinase (ROCK) plays a role in hepatic lipid homeostasis.

Purpose of the Study:

  • To review the role of ROCK in obesity-induced fatty liver disease.
  • To highlight cellular pathways governing hepatic lipid accumulation, focusing on de novo lipogenesis.
  • To explore the therapeutic potential of targeting ROCK for NAFLD treatment.

Main Methods:

  • Review of existing literature on ROCK signaling in liver disease.
  • Analysis of cellular pathways involved in hepatic lipid metabolism.
  • Discussion of pharmacological ROCK inhibition and genetic knockout models.

Main Results:

  • Pharmacological ROCK blockade in hepatocytes or stellate cells inhibits NAFLD and fibrosis progression.
  • Mice lacking hepatic ROCK1 are protected from obesity-induced fatty liver by reduced de novo lipogenesis.
  • ROCK is an essential regulator of lipid accumulation in obesity-induced fatty liver.

Conclusions:

  • Understanding ROCK's role in the metabolic milieu is crucial for developing novel NAFLD therapies.
  • Targeting ROCK activation pathways may offer a new therapeutic strategy for fatty liver diseases.
  • ROCK inhibition impacts de novo lipogenesis, a key pathway in NAFLD development.
Keywords:
AMP-activated protein kinaseDiet, high-fatLipogenesisNonalcoholic fatty liver diseaseRho-kinase

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