In our work, we separately examined the roles of PTTG3P, PTTG1 and PTTG2. Similarly to Zhang et al., we observed a statistically significant positive correlation between PTTG3P and PTTG1 as well as PTTG2 in esophageal squamous cell carcinoma. Here, PTTG3P is linked to esophageal squamous cell carcinoma.