Tianjin Medical Journal ›› 2026, Vol. 54 ›› Issue (4): 412-416.doi: 10.11958/20253171

• Clinical Research • Previous Articles     Next Articles

The expression levels of CYP1B1 and PSMD14 in colorectal cancer and their impact on prognosis

CHEN Yiming(), GE Chao(), XU Shuqi, SUN Wei, DAI Ying, XU Xuanfu   

  1. Department of Gastroenterology, Shidong Hospital, Yangpu District, Shanghai 200438, China
  • Received:2025-10-16 Revised:2025-11-10 Published:2026-04-15 Online:2026-04-14
  • Contact: E-mail:13917795248@126.com

Abstract:

Objective To explore the expression of cytochrome P450 1B1 (CYP1B1) and proteasome 26 S subunit non-ATpase 14 (PSMD14) in colorectal cancer tissue and their impact on the prognosis of colorectal cancer. Methods A total of 107 colorectal cancer patients who underwent surgery in our hostpital from January 2021 to June 2022 were selected in this study. Cancer tissue and adjacent tissue samples were obtained during surgery, and the mRNA levels of CYP1B1 and PSMD14 in cancer tissue and adjacent tissue were detected by qRT-PCR. The relationship between levels of CYP1B1 and PSMD14 and pathological characteristics of colorectal cancer was analyzed. The Cox regression model was used to analyze the influencing factors of survival prognosis. The diagnostic value of CYP1B1 and PSMD14 levels in colorectal cancer was analyzed using ROC curves. Results In colorectal cancer tissue, the mRNA expressions of CYP1B1 and PSMD14 were significantly higher than those in paracancerous tissue (P<0.01). The area under the curve (AUC) and sensitivity of the combined diagnosis of CYP1B1 and PSMD14 were significantly higher than those of the individual detection of CYP1B1 and PSMD14. The proportion of high CYP1B1 and PSMD14 mRNA expression in cancer tissue of patients with tumor diameter ≥5 cm, TNM stage Ⅲ+Ⅳ, low differentiation and lymph node metastasis were relatively high (P<0.05). The 3-year overall survival rate of patients with high mRNA expression of CYP1B1 (40.82%) was significantly lower than that of patients with low mRNA expression of CYP1B1 (89.09%). The 3-year overall survival rate of those with high expression of PSMD14 mRNA (34.04%) was significantly lower than that of patients with low expression of PSMD14 mRNA (92.98%), Log-rank χ2 were 26.070 and 43.060 respectively, both P<0.01. TNM stage Ⅲ+Ⅳ, low differentiation degree, lymph node metastasis, high expression of CYP1B1 mRNA and high expression of PSMD14 mRNA were independent risk factors for the survival prognosis of colorectal cancer patients (P<0.05). Conclusion CYP1B1 and PSMD14 mRNA are highly expressed in colorectal cancer tissue and are closely related to disease progression and survival prognosis. They have good diagnostic value for colorectal cancer, and may become important biomarkers for assessing treatment and prognosis in colorectal cancer patients.

Key words: colorectal neoplasms, cytochrome P-450 CYP1B1, survival analysis, prognosis, PSMD14

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