Relationship between expression of P27, Fragile Histidine Triad (FHT), phosphatase and tensin homolog deleted on chromosome ten (PTEN), P73, and prognosis in esophageal squamous cell carcinoma

To investigate the significance between the expression of P27, Fragile Histidine Triad (FHIT), phosphatase and tensin homolog deleted on chromosome ten (PTEN), and P73 in esophageal squamous cell carcinoma (ESCC), paraffin-embedded tissue blocks of 200 cases were obtained from the Fourth Hospital of Hebei Medical University. The sections were used for (HE) and immunohistochemical staining streptavidin-perosidase (SP). The immunologic reagents used included antibodies against P27, FHIT, PTEN, and P73. From I- to II- and III-graded ESCC, the positive expression of P27 was decreased, but the P73 was increased, showing a ladded change (P < .05). The oncogene and tumor suppressor gene protein expression were related to the differentiation and can be one of the factors of influencing prognosis. The oncogene and tumor suppressor gene protein expression was related to the prognostic factor, and thus, it is valuable for clinical treatment and judging prognosis to detect the expression of P27, FHIT, PTEN, and P73 in ESCC.