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Article Abstract

Alpha-fetoprotein (AFP) is a classic biomarker for hepatocellular carcinoma (HCC). AFP-positive HCC (AFP HCC) has been intensively investigated; however, the genomic, transcriptomic and microenvironmental characteristics of AFP-negative HCC (AFP HCC) remain to be deciphered. Here we show that tumors display mild differences in genetic alterations between AFP HCC and AFP HCC patients, while AFP HCC exhibits hyperactive arachidonic acid metabolism. Furthermore, the transcription activity of androgen receptor (AR) is significantly increased in AFP HCC and plays a positive regulatory role in arachidonic acid metabolism and its metabolite 11,12-epoxyeicosatrienoic acid (11,12-EET). The tumor-derived 11,12-EET exhibits high affinity for EGFR that promotes the migration and tube formation of endothelial cells in vitro. Combination of lenvatinib and bicalutamide (an AR antagonist) enhances the therapeutic efficacy for AFP HCC. Overall, we uncover the AR-mediated hyperactive arachidonic acid metabolism in AFP HCC, and reveal AR-11,12-EET-EGFR axis-induced angiogenesis, providing a promising strategy of combined AR antagonist with lenvatinib for AFP HCC treatment.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12255818PMC
http://dx.doi.org/10.1038/s41467-025-61448-zDOI Listing

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