Carcinogenesis, Teratogenesis & Mutagenesis ›› 2025, Vol. 37 ›› Issue (4): 314-318.doi: 10.3969/j.issn.1004-616x.2025.04.015

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Expression of SATB1 and PRKDC proteins and sensitivity of advanced esophageal squamous cell carcinomas to chemotherapy

AYIGULI·Hare, ABUDILI·Abuduxuku   

  1. Xinjiang Medical University Affiliated Tumor Hospital, Urumqi 830011, Xinjiang, China
  • Received:2024-03-23 Revised:2025-01-12 Published:2025-08-05

Abstract: OBJECTIVE: To study the expressions of special-AT-rich sequence binding protein-1(SATB1) and catalytic subunit of the DNA-dependent protein kinase(PRKDC) protein in advanced esophageal squamous cell carcinomas and their relationship with carcinomas—sensitivity to chemoradiotherapy. METHODS: Thirty patients with locally advanced esophageal squamous cell carcinoma in our hospital were selected as the study subjects. These patients received standard radical radiotherapy and synchronous chemotherapy. Three months after the completion of chemoradiotherapy,the short-term efficacy was evaluated according to the Criteria (RECIST) which classified the patients into two groups: radiotherapy sensitive group (CR+PR) of 16 cases and a chemoradiotherapy insensitive group (SD+PD) of 14 cases. Simultaneously, clinical data such as patient gender,age,pathological grading,clinical staging,tumor location,and survival status were collected. Western Blot assay was used to detect the expression levels of SATB1 and PRKDC proteins in cancer tissues of the patients. Relationships between the expression levels and clinical pathological factors were determined. RESULTS: The PRKDC protein was not expressed in both the sensitive and insensitive groups of carcinomas. Expression levels of SATB1 were higher in the sensitive than the insensitive group (P<0.05). Compared with the insensitive group,the sensitive group had lower tumor differentiation and earlier staging (P<0.05). There was no statistically significant difference in gender,age,lesion location,and 1-year survival between the sensitive and the insensitive groups (P>0.05). CONCLUSION: Our data shows that expression of the SATB1 protein was closely related to the sensitivity of esophageal carcinomas to chemoradiotherapy and to the degree of differentiation. The expression may therefore be useful in predicting efficacy of esophageal carcinomas to chemoradiotherapy. On the other hand,PRKDC protein was not expressed in the cancer tissues.

Key words: SATB1, PRKDC, esophageal cancer, chemoradiosensitivity

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