HNF4A and hepatocellular carcinoma: Since BI6015 was previously demonstrated as antitumorigenic against HCC, largely via its destabilising effects on HNF4α,20 we next examined parental (para) BI6015, and its meta and ortho analogs for such properties, against five GC cells, AGS (mid-level HNF4α expression), and SNU601, SNU668, SNU216, and SNU620 (low HNF4α expression).