Studies on PTX3 RNA expression have involved the investigation of various malignancies, including gliomas [61,65], glioblastomas [45,66,68,70], HCC [62], head and neck squamous cell carcinoma [64,71], melanoma [69], papillary thyroid carcinoma [67], and lung cancer [63]. The gene discussed is PTX3; the disease is hepatocellular carcinoma.