Repurposing Resmetirom to Suppress MASLD/MASH-HCC in the Dysmetabolic Era

Amedeo Lonardo1, Ming-Hua Zheng2, Ralf Weiskirchen3

  • 1Independent Researcher, Modena, Italy. a.lonardo@libero.it.

Insights

Resmetirom, a MASH treatment, may suppress metabolic dysfunction-associated steatotic liver disease/steatohepatitis-hepatocellular carcinoma (MASLD/MASH-HCC). Its thyroid hormone receptor beta (THR-β) agonism targets key pathways in preclinical models.

Area of Science:

  • Hepatology and Oncology
  • Endocrinology and Metabolic Diseases

Background:

  • Metabolic disorders significantly increase hepatocellular carcinoma (HCC) risk via complex inflammatory and molecular pathways.
  • Despite advancements, HCC remains a difficult-to-treat malignancy, necessitating novel therapeutic strategies.
  • Metabolic dysfunction-associated steatotic liver disease (MASLD) and steatohepatitis (MASH) are increasingly linked to HCC development.

Purpose of the Study:

  • To explore the rationale and potential for repurposing Resmetirom, a selective thyroid hormone receptor beta (THR-β) agonist, for treating MASLD/MASH-associated HCC (MASLD/MASH-HCC).
  • To discuss the therapeutic implications of Resmetirom's known mechanisms in the context of HCC suppression.

Main Methods:

  • Review of existing literature on metabolic disorders, HCC pathogenesis, and Resmetirom's pharmacological profile.
  • Analysis of Resmetirom's preclinical effects on pathways relevant to MASLD/MASH-HCC, including mitochondrial β-oxidation, lipogenesis, and MDK/LRP1 signaling.
  • Consideration of thyroid hormone signaling's role in MASLD and HCC.

Main Results:

  • Resmetirom enhances mitochondrial β-oxidation and reduces de novo lipogenesis, improving lipid homeostasis.
  • Preclinical MASLD/MASH-HCC models show Resmetirom attenuates MDK/LRP1-mediated immunosuppressive crosstalk.
  • Resmetirom's liver-directed action and THR-β selectivity offer a targeted approach.

Conclusions:

  • Resmetirom's established efficacy in MASH and its demonstrated preclinical anti-tumorigenic effects in MASLD/MASH-HCC models support its potential repurposing.
  • Targeting thyroid hormone signaling with Resmetirom presents a promising avenue for suppressing MASLD/MASH-HCC, addressing a critical unmet need in oncology.