结直肠癌患者癌组织OVOL2蛋白的表达及与预后的关系
李明森 , 刘婷婷 , 林欣 , 李玉玮 , 许晨
中国现代医学杂志 ›› 2026, Vol. 36 ›› Issue (16) : 69 -75.
结直肠癌患者癌组织OVOL2蛋白的表达及与预后的关系
Expression of OVOL2 protein in colorectal cancer tissues and its association with patient prognosis
目的 探讨结直肠癌患者癌组织OVO样锌指2(OVOL2)蛋白的表达及与预后的关系。 方法 选取2019年1月—2020年12月在天津市人民医院接受根治性肿瘤切除的144例结直肠癌患者,收集所有患者手术组织样本。采用免疫组织化学(IHC)染色检测144例结直肠癌组织中OVOL2蛋白表达情况,分析临床病理特征与OVOL2蛋白表达的关系。随访5年,通过Kaplan-Meier曲线分析OVOL2蛋白阴性与阳性表达患者的总生存率,单因素和多因素一般Cox回归模型分析OVOL2在结直肠癌中的预后价值。 结果 结直肠癌样本中OVOL2蛋白阳性表达率为56.9%(82/144),阴性表达率为43.1%(62/144)。TNM分期Ⅰ、Ⅱ期和淋巴血管未侵犯患者的OVOL2蛋白阳性率均较高(P <0.05)。生存曲线结果显示,OVOL2蛋白阳性表达患者预后优于阴性表达患者(P <0.05),OVOL2蛋白阳性表达TNM分期Ⅰ、Ⅱ期患者的预后优于阴性表达TNM分期Ⅰ、Ⅱ期患者(P <0.05),OVOL2蛋白阳性表达TNM分期Ⅲ期患者的预后优于阴性表达TNM分期Ⅲ期患者(P <0.05)。单因素和多因素一般Cox回归分析结果显示,TNM分期Ⅲ期[H^R=1.935(95% CI:1.097,3.414)]、淋巴血管侵犯[H^R=1.952(95% CI:1.067,3.572)]、神经侵犯[H^R=2.537(95% CI:1.417,4.544)]和OVOL2蛋白阴性表达[H^R=2.708(95% CI:1.522,4.818)]均为结直肠癌患者死亡的独立危险因素(P<0.05)。 结论 OVOL2蛋白在结直肠癌组织中呈阴性表达(IHC染色评分≤4分),与肿瘤侵袭性特征及不良预后有关,OVOL2有望成为结直肠癌预后评估的潜在分子标志物。
Objective To explore the expression of OVO-like zinc finger 2 (OVOL2) protein in colorectal cancer tissues and its association with patient prognosis. Methods A total of 144 patients with colorectal cancer who underwent radical tumor resection at Tianjin People's Hospital from January 2019 to December 2020 were selected. All the surgical tissue samples of these patients were collected. The expressions of OVOL2 protein in 144 colorectal cancer tissues were detected by immunohistochemistry (IHC) staining, and the relationship between OVOL2 protein expression and clinicopathological characteristics was analyzed. After a 5-year follow-up, the Kaplan-Meier curve was used to analyze the overall survival rates of patients with negative and positive OVOL2 protein expression. Univariable and multivariable general Cox regression models were used to assess the prognostic value of OVOL2 in colorectal cancer. Results The positive expression rate of OVOL2 protein in colorectal cancer samples was 56.9% (82/144), while the negative expression rate was 43.1% (62/144). The positive rate of OVOL2 protein was higher in patients with TNM stage I-Ⅱ tumors and those without lymphovascular invasion (P < 0.05). The survival curve results showed that patients with positive expression of OVOL2 protein had a better prognosis than those with negative expression (P < 0.05). Among patients with TNM stage Ⅰ-Ⅱ tumors, those with positive expression of OVOL2 protein had a better prognosis than those with negative expression (P < 0.05). For patients with TNM stage Ⅲ tumors, those with positive expression of OVOL2 protein had a better prognosis than those with negative expression (P < 0.05). The results of univariable and multivariable Cox regression analysis demonstrated that TNM stage Ⅲ tumors [H^R = 1.935 (95% CI: 1.097, 3.414) ], lymphovascular invasion [H^R = 1.952 (95% CI: 1.067, 3.572) ], nerve invasion [H^R = 2.537 (95% CI: 1.417, 4.544) ] and negative expression of OVOL2 protein [H^R = 2.708 (95% CI: 1.522, 4.818) ] were all independent risk factors for death in patients with colorectal cancer (P < 0.05). Conclusion The OVOL2 protein shows negative expression in colorectal cancer tissues and is associated with tumor invasiveness and poor prognosis. OVOL2 is expected to become a potential molecular marker for prognosis assessment in colorectal cancer.
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天津市卫生健康科技项目(2025209)
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