The Journal of Practical Medicine ›› 2025, Vol. 41 ›› Issue (9): 1407-1412.doi: 10.3969/j.issn.1006-5725.2025.09.020

• Medical Examination and Clinical Diagnosis • Previous Articles    

The expression and clinical significance of B7⁃H3, PRDX1, and TRX in the serum and tissues of patients with ulcerative colitis and its related colorectal cancer

Na WU,Zetian ZHANG,Rui WANG   

  1. Department of Gastroenterology,the First Affiliated Hospital of Hebei North University,Zhangjiakou 075000,Hebei,China
  • Received:2025-01-17 Online:2025-05-10 Published:2025-05-20

Abstract:

Objective To investigate the expression levels and clinical significance of B7 homolog 3(B7-H3), peroxiredoxin 1 (PRDX1), and thioredoxin (TRX) in the serum and tissues of patients with ulcerative colitis (UC) and UC-associated colorectal cancer (UC-CRC). Methods A total of 108 patients with UC who underwent examination in our hospital between January 2019 and December 2023 were enrolled in the UC group. Additionally, 108 patients with UC-CRC who were examined in our hospital were included in the UC-CRC group. Furthermore, 108 individuals without any abnormalities detected during colonoscopy were recruited as the control group. The serum levels of B7-H3, PRDX1, and TRX were quantified using enzyme-linked immunosorbent assay (ELISA). The expression of B7-H3, PRDX1, and TRX in tissues from UC-CRC and UC patients was assessed by immunohistochemistry. The diagnostic performance of serum B7-H3, PRDX1, and TRX levels for UC-CRC was evaluated by constructing receiver operating characteristic (ROC) curves. Results Compared with the control group, the serum expression levels of B7-H3, PRDX1, and TRX in both the UC group and the UC-CRC group were significantly elevated in sequence (P < 0.05). In comparison to the resting UC group, the serum expression levels of B7-H3, PRDX1, and TRX in the episodic UC group also increased significantly (P < 0.05). Furthermore, compared with UC patients, the positive expression rates of B7-H3, PRDX1, and TRX in the tissues of UC-CRC patients were markedly higher (P < 0.05). The combination of serum B7-H3, PRDX1, and TRX demonstrated the highest AUC for diagnosing UC-CRC patients, outperforming the individual diagnostic performance of each biomarker (Zcombination-B7-H3 = 2.829, P = 0.005, Zcombination-PRDX1 = 2.544, P = 0.011, Zcombination-TRX = 3.673, P < 0.001). Conclusion B7-H3, PRDX1, and TRX are significantly overexpressed in both the serum and tissues of UC-CRC patients, and their combined evaluation holds potential as a diagnostic tool for detecting the development of UC-CRC.

Key words: B7 homolog 3, peroxiredoxin 1, thioredoxin, ulcerative colitis, colorectal cancer

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