Coffee possesses a variety of bioactive compounds that have a documented impact on hepatocellular carcinoma (HCC). These compounds function as a coordinated epigenetic defense system, thereby offering both preventative and therapeutic benefits.
Researchers from Kansai Medical University have recently compiled the mechanisms by which coffee’s bioactive components affect HCC in a review article. The findings were published in the journal Targets.
HCC frequently arises from chronic inflammation, which is often instigated by fatty liver disease and cirrhosis, and it represents a significant cause of cancer-related mortality, as explained by the research team.
Prior epidemiological studies have also indicated a substantial, dose-dependent inverse relationship between consistent coffee consumption and the incidence of HCC. Some studies have shown that drinking three or more cups of coffee daily can reduce this risk by over 50 percent.
The specific molecular pathways through which regular coffee intake might confer protection against liver cancer have remained unclear. In their recent review, the researchers aimed to address this knowledge gap.
Their focus was on what is termed “nutrieipigenomics,” which specifically examines how coffee influences epigenetic mechanisms that provide a protective effect against HCC.
Experts report that constituents found in coffee, including chlorogenic acids and diterpenes, alongside short-chain fatty acids produced by microorganisms, exhibit anti-cancer effects on the liver. They achieve this by influencing DNA methyltransferases, the gut-liver axis, and tumor-suppressing microRNA networks.
“We were able to demonstrate how the bioactive components in coffee operate as a coordinated epigenetic defense system,” the research team stated. However, they also noted that the concentration of these compounds in coffee can vary considerably depending on the brewing method.
“Unfiltered brewing methods, such as espresso or French press coffee, contain significantly higher levels of the liver-protective fat-soluble diterpenes, namely cafestol and kahweol,” the experts elaborated.
Overall, this comprehensive examination of the epigenetic effects of coffee consumption provides a robust foundation for incorporating targeted dietary interventions into both the prevention and treatment strategies for HCC.
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