LUMC researchers discover treatment against deadly liver disease NASH

14 July 2023
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Leiden University Medical Center (LUMC) researchers have discovered a new treatment for non-alcoholic liver disease (NASH). No drugs currently exist against this deadly liver disease, which affects more than 100 million patients worldwide. Liver transplantation is now the only available treatment.

NASH is an inflammatory liver disease that originates from unrecognized and untreated fatty liver disease. The disease often results from an unhealthy lifestyle with little exercise and a high-caloric diet. NASH leads to liver fibrosis and cirrhosis and eventually to liver cancer.

Anti-inflammatory molecule

A team of researchers, led by Dr. Martin Giera and Prof. Patrick Rensen of LUMC, along with researchers from Munich, San Diego, Groningen and Xi'an, have found a small molecule that prevents and treats NASH. This anti-inflammatory molecule has been successfully tested in preclinical research. The groundbreaking results were recently published in the leading scientific journal EMBO Molecular Medicine.

Fatty liver and inflammation

Years ago, researchers already discovered that so called synthetic LXR agonists inhibit inflammatory responses in the liver. However, the problem was that these agonists also caused the liver to produce excess fat. As a result, high amounts of fat and cholesterol ended up in the blood causing hypertriglyceridemia. Many promising treatments therefore failed before reaching the patients.

Beneficial effect

Researchers at LUMC have now succeeded in developing a small molecule that leads to an increase in a body's own LXR agonist, which inhibits inflammation in the liver but does not stimulate fat production. This beneficial effect has now been successfully demonstrated in a preclinical model.

Patent

Based on their discovery, Giera and Rensen and other researchers have applied for a patent for potential treatments for NASH and other inflammatory diseases. The next step is to further develop their findings through clinical trials so that this therapeutic strategy can eventually be offered to patients.