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Related Concept Videos

Liver Regeneration01:24

Liver Regeneration

The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...

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Reprogramming the diseased liver: antioxidant-engineered mRNA nanoparticles as microenvironment modulators in MAFLD.

Matteo Ghiringhelli1,2,3, Lior Zangi1,2,3

  • 1Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Immunometabolism (Cobham, Surrey)
|May 21, 2026
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Summary

A novel vitamin E nanoparticle improves metabolic dysfunction-associated fatty liver disease (MAFLD) by reducing oxidative stress and enhancing immunotherapy effectiveness against liver cancer.

Keywords:
MAFLDSTAT signalingTCPTPhepatocellular carcinomaimmune microenvironmentlipid nanoparticlesmRNA therapeuticsoxidative stress

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Area of Science:

  • Biomedical Engineering
  • Hepatology
  • Immunology

Background:

  • Metabolic dysfunction-associated fatty liver disease (MAFLD) is a major risk factor for hepatocellular carcinoma (HCC).
  • Oxidative stress in MAFLD impairs immune function, limiting immunotherapy efficacy for liver cancer.
  • Current treatments for MAFLD and associated HCC often have limited success due to these challenges.

Purpose of the Study:

  • To develop a nanoparticle-based strategy to simultaneously deliver mRNA and mitigate oxidative stress in the liver.
  • To investigate the impact of this nanoparticle on hepatic metabolic homeostasis and immune signaling.
  • To assess the potential of this approach to enhance responsiveness to immune checkpoint blockade in MAFLD-associated HCC.

Main Methods:

  • Engineered vitamin E-incorporated lipid nanoparticles for targeted mRNA delivery to hepatocytes.
  • Assessed the nanoparticles' ability to buffer oxidative stress in the hepatic microenvironment.
  • Measured the restoration of T-cell protein tyrosine phosphatase activity and suppression of STAT signaling.
  • Evaluated improvements in metabolic parameters and inflammatory markers.
  • Tested the enhanced response to immune checkpoint blockade therapy.

Main Results:

  • The vitamin E nanoparticles successfully delivered mRNA specifically to hepatocytes.
  • The strategy effectively buffered oxidative stress and restored T-cell protein tyrosine phosphatase activity.
  • Suppression of STAT signaling was observed, leading to improved metabolic homeostasis.
  • Reduced inflammatory signaling and enhanced responsiveness to immune checkpoint blockade were demonstrated.
  • This approach shows promise for treating MAFLD-driven liver cancer.

Conclusions:

  • Rational nanoparticle engineering can address both therapeutic delivery and microenvironmental modulation in MAFLD.
  • This vitamin E-based strategy offers a novel approach to combat MAFLD-associated HCC by enhancing immunotherapy.
  • Further research into nanoparticle-based interventions holds significant potential for chronic metabolic liver diseases.