Laboratory Medicine ›› 2026, Vol. 41 ›› Issue (4): 337-345.DOI: 10.3969/j.issn.1673-8640.2026.04.005

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Dynamic changes of FZD6 mRNA expression during postoperative chemotherapy in patients with colorectal cancer and its predictive value for prognosis

CAO Chuanyang, QIANG Guanghui, YU Kuanyong   

  1. Department of General SurgeryNanjing Jiangbei HospitalNanjing 211800,Jiangsu, China
  • Received:2025-01-23 Revised:2025-10-11 Online:2026-04-30 Published:2026-05-07

Abstract:

Objective To analyze the dynamic changes of frizzled-6(FZD6) mRNA expression during postoperative chemotherapy in patients with colorectal cancer(CRC) and its predictive value for prognosis. Methods A total of 130 CRC patients who received chemotherapy at Nanjing Jiangbei Hospital from August 2022 to April 2024 were enrolled. They were classified into good prognosis group(89 cases) and poor prognosis group(41 cases) based on their prognosis. The clinical data were collected,and the relative expression level of FZD6 mRNA was determined. Multivariate Logistic regression analysis was used to evaluate the influencing factors of prognosis in CRC patients,and the relationship between FZD6 mRNA expression and prognosis under different clinicopathological characteristics was further analyzed. Multivariate linear regression analysis was used to determine the relationship between FZD6 mRNA expression and immune factor levels. Receiver operating characteristic(ROC) curve and restricted cubic spline model were used to analyze the correlation between FZD6 mRNA expression and prognosis outcomes. Kaplan-Meier survival curve was used to analyze the impact of FZD6 mRNA expression on the survival of CRC patients. Results Compared with good prognosis group,poor prognosis group had higher proportions of tumor size ≥5 cm tumor invasion depth T3-T4,advanced TNM stageⅢ-Ⅳ,lymphatic metastasis,vascular invasion and nerve invasion(P<0.05). The levels of CD4+T,CD8+T,CD158a,CD94,NKG2D,NKp30,NKp46,IL-2 and TNF-α were lower(P<0.05). Compared with good prognosis group after 6 months of chemotherapy,the FZD6 mRNA expression in poor prognosis group was increased(P<0.05). There was no statistical significance in the relative expression signifioance levels of FZD6 mRNA between the 2 groups before chemstherapy and 1 and 3 months after chemoterapy (P>0.05). FZD6 mRNA relative expression level was a risk factor for poor prognosis in CRC patients(P<0.05),and tumor invasion depth,TNM stage,lymphatic metastasis,vascular invasion and nerve invasion did not affect the relationship(P>0.05). FZD6 mRNA was negatively correlated with CD4+T,CD8+T,CD158a,CD94,NKG2D,NKp30,NKp46,IL-2 and TNF-α(P<0.05). The area under curve(AUC) of FZD6 mRNA in judging the poor prognosis of CRC patients was 0.927,and the risk of poor prognosis in CRC patients was increased when FZD6 mRNA was >3.09. The 1-year survival rate of patients with low FZD6 mRNA expression(61.43%) was higher than that of patients with high FZD6 mRNA expression(28.33%)(Long-rank χ2=8.565,P<0.05). Conclusions FZD6 mRNA expression during postoperative chemotherapy in CRC patients is an independent risk factor for poor prognosis,and it is negatively correlated with immune factor levels and positively correlated with the risk of poor prognosis.

Key words: Frizzled-6, Colorectal cancer, Chemotherapy, Prognosis

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