Fig. 2: Prolyl 4-hydroxylase subunit alpha-2 (P4HA2) is highly expressed in papillary thyroid cancer (PTC).

A Representative images of immunohistochemical staining of P4HA2 in tumors and paracancerous tissues of patients with PTC. Scatter plot of positive cell ratio (B), positive cell density (PCD) (C), and immunohistochemical score (H-Score) (D) of tumor tissue and adjacent tissue in patients with PTC. E Correlation dot plot of tumor volume and positive cell ratio in patients with PTC. Correlation test was performed by Spearman test. *P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001.