BPA Is Linked to Liver Cancer Through 5 Gene Pathways

BPA has been suspected of contributing to liver cancer for years. A 2026 study in Biochemical and Biophysical Reports now identifies exactly how. Using network toxicology and molecular analysis of genetic databases, researchers found 101 genes shared between BPA exposure and hepatocellular carcinoma (HCC). Five of those genes are core drivers, and high expression of all five is linked to poor patient outcomes.

The Five Core Genes

The five genes that BPA disrupts in ways that directly overlap with liver cancer progression are: SRC, PPARG, HSP90AA1, MAPK3, and ESR1. These proteins control cell proliferation, metabolism, stress response, and estrogen signaling. BPA's ability to bind to estrogen receptors (ESR1) and alter PPAR signaling (PPARG) puts it directly into the chain of events that drives HCC tumor growth.

All five genes showed differential expression in HCC tissue compared to normal liver, and their expression levels were predictive of patient survival. Molecular docking confirmed that BPA directly interacts with each of these five proteins.

What This Means Practically

BPA is in the lining of canned goods, hard plastic food containers, and thermal receipt paper. It migrates into food. Every day, most people who use plastic food storage or eat canned food are exposed to BPA. The concentrations found in typical human urine and blood samples are within the range used in these kinds of studies.

You can't control every BPA source. But you can control your kitchen. Replace plastic food storage with glass or stainless steel. Choose glass-jar alternatives to canned goods when available. Browse non-toxic kitchen alternatives for cooking and storage tools that remove the daily BPA exposure from your meals.

Also see glass food containers for safer alternatives.

Source: Zhang Y, Wu Y, Wu C, He Y, Zhai Y (2026). Biochem Biophys Rep.