Clinical Focus ›› 2026, Vol. 41 ›› Issue (6): 516-521.doi: 10.3969/j.issn.1004-583X.2026.06.006

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Expression levels of exosomal miR-23b and miR-152-3p in patients with colorectal cancer and their prognostic predictive value

Zhao Dan(), Yang Yali, Zhang Zhiqiang   

  1. Department of Gastroenterology, Xinxiang First People's Hospital, Xinxiang 453000, China
  • Received:2026-04-07 Online:2026-06-20 Published:2026-07-01
  • Contact: Zhao Dan,Email: danni756@163.com

Abstract:

Objective To investigate the expression levels of serum exosomal microRNA-23b (miR-23b) and microRNA-152-3p (miR-152-3p) in patients with colorectal cancer, and to analyze their associations with pathological characteristics as well as their prognostic predictive value. Methods A total of 100 patients with colorectal cancer who were diagnosed and treated at our hospital from December 2020 to December 2024 were prospectively enrolled. Serum exosomal miR-23b and miR-152-3p expression levels were measured, and their correlations with pathological characteristics were analyzed. Based on prognosis within 1 year after surgery, patients were divided into a poor-prognosis group and a good-prognosis group. Serum exosomal miR-23b and miR-152-3p expression levels were compared between the two groups, and the interaction effect of the two markers on poor prognosis was analyzed. Their prognostic predictive value was also evaluated. Results The expression levels of miR-23b and miR-152-3p were positively correlated with tumor differentiation, but negatively correlated with TNM stage and lymph node metastasis(P<0.05). Serum exosomal miR-23b and miR-152-3p expression levels were lower in the poor-prognosis group than in the good-prognosis group (P<0.05). Low miR-23b expression and low miR-152-3p expression showed a positive interaction effect on the risk of poor prognosis (P<0.05). The AUC of the combined preoperative miR-23b and miR-152-3p model for predicting prognosis was significantly higher than that of either marker alone (P<0.05). Conclusion Reduced serum exosomal miR-23b and miR-152-3p expression in patients with colorectal cancer exhibits a positive interaction effect on the risk of poor prognosis. Combined detection of these markers has better prognostic predictive value than either marker alone.

Key words: colorectal neoplasms, exosomes, microRNA-23b, microRNA-152-3p, prognosis, prediction

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