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Chinese Journal of Endourology(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (04): 386-391. doi: 10.3877/cma.j.issn.1674-3253.2024.04.014

• Clinical Research • Previous Articles    

Correlation of urinary microRNA-326 with the prognosis of bladder cancer patients treated with radical cystectomy

Zhongwen Liu1,(), Chang Liu1, Yang Gao2, Dong Liu3, Shiqing Lin4, Jianhua Yang5, Fuyi Zhao6   

  1. 1. Department of Urology, Mianzhu People's Hospital, Sichuan 618200, China
    2. Department of Urology, Deyang Hospital of Traditional Chinese and Western Medicine, Sichuan 618099, China
    3. Department of Urology, Mianzhu City Chinese Medicine Hospital, Sichuan 618299, China
    4. Department of Urology, the Third Hospital of Mianyang, Sichuan 621054, China
    5. Department of Urology, Neijiang Central District People's Hospital, Sichuan 641099, China
    6. Department of Urology, The Sixth People's Hospital of Deyang City, Sichuan 618099, China
  • Received:2023-11-02 Online:2024-08-01 Published:2024-07-17
  • Contact: Zhongwen Liu

Abstract:

Objective

To investigate the correlation between microRNA-326 (miR-326) in urine and the prognosis of bladder cancer patients treated with radical cystectomy.

Methods

138 patients with bladder cancer treated with radical cystectomy at Mianzhu People's Hospital, Deyang Hospital of Traditional Chinese and Western Medicine, Mianzhu City Chinese Medicine Hospital, the Third Hospital of Mianyang, Neijiang Central District People's Hospital, the Sixth People's Hospital of Deyang City, from January 2017 to February 2019 were selected as study subjects, followed up for 6 to 60 months, and divided into survival (n=95) and death (n=43) groups according to their survival status. Real-time fluorescence quantitative PCR was used to detect miR-326 levels in urine. Receiver operating characteristic (ROC) curve was used to evaluate the value of miR-326 in determining the prognosis of bladder cancer patients. Kaplan-Meier and log-rank were used to compare the survival of patients with different miR-326 level, and Cox regression was used to analyse the risk factors for the prognosis of bladder cancer patients.

Results

Age, proportion of T4 stage and proportion of lymph node metastases were lower in the survival group than in the death group (all P<0.05). Postoperative miR-326 levels were higher in both groups than preoperatively (all P<0.05). Preoperative miR-326 level was higher in the survival group than in the death group, and the miR-326 change value was lower than in the death group (all P<0.05). The area under the ROC curve for pre-operative miR-326 to determine the prognosis of bladder cancer patients was higher than the miR-326 change value (P<0.05). Patients with preoperative miR-326≤0.40 had a lower survival rate than patients with preoperative miR-326>0.40 (P<0.05). Cox regression analysis showed that age and T-stage were independent risk factors for bladder cancer prognosis, and preoperative miR-326 was an independent protective factor for bladder cancer prognosis (all P<0.05).

Conclusion

High miR-326 levels before radical cystectomy suggest a low risk of poor prognosis in patients with bladder cancer.

Key words: Bladder cancer, Radical cystectomy, Urine, MicroRNA-326, Biomarker, PCAT6, Prognosis

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