Luo et al. measured the expression of STAT4 in histological lesions and found a higher expression of STAT4 in samples of adenocarcinoma and squamous cell carcinoma (64.71% and 66.54% respectively) compared with non-cancerous lesions such as chronic cervicitis and acuminate condyloma (25.93% and 28.57%, respectively). This evidence concerns the gene STAT4 and squamous cell carcinoma.