In a tissue microarray of 76 ICC tissues, we detected the levels of PAX8‐AS1 and GPX4 and found that tissues with low PAX8‐AS1 expression showed lower GPX4 levels, whereas high PAX8‐AS1 levels were associated with increased GPX4 levels (Figure 7P). This evidence concerns the gene PAX8 and intrahepatic cholangiocarcinoma.