Expression of B7-H4 in Intrahepatic Cholangiocarcinoma and Its Clinical Significance
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摘要:
目的 探讨协同共刺激分子B7-H4在肝内胆管癌组织中的表达及其临床意义。 方法 采用免疫组化检测90例肝内胆管癌(intrahepatic cholangiocarcinoma,ICC)及其癌旁组织中B7-H4的表达,并分析B7-H4表达与患者临床病理特征及预后关系。 结果 在肝内胆管癌中B7-H4表达率为44.4%,明显高于癌旁组织,且肝内胆管癌中B7-H4表达上升与TNM分期、肿瘤的分化、淋巴结转移及不良预后相关(P < 0.05)。生存分析提示B7-H4高表达组患者术后总生存率明显低于B7-H4低表达组(P = 0.005)。Cox比例风险回归模型分析表明B7-H4是肝内胆管癌患者的独立预后因子。 结论 B7-H4在肝内胆管癌组织中表达增加,且B7-H4高表达与ICC患者恶性病理特征及不良预后密切相关,对预估患者预后有一定临床指导意义。 -
关键词:
- 协同共刺激分子B7-H4 /
- 肝内胆管癌 /
- 病理 /
- 预后
Abstract:Objective To investigate the expression of costimulatory molecule B7-H4 in intrahepatic cholangiocarcinoma (ICC)and its clinical significance. Methods Immunohistochemistry was used to detect the expression of B7-H4 in 90 cases of intrahepatic cholangiocarcinoma and its adjacent tissues, and analyzed the correlation between B7-H4 expression and the clinicopathological characteristics and prognosis of the patients. Results The expression rate of B7-H4 in intrahepatic cholangiocarcinoma was 44.4%, which was significantly higher than that of adjacent tissues. The increased expression of B7-H4 in intrahepatic cholangiocarcinoma was related to TNM staging, tumor differentiation, lymph node metastasis and poor prognosis (P < 0.05). Survival analysis revealed that the overall survival rate of patients in the B7-H4 high expression group was significantly lower than that in the B7-H4 low expression group (P = 0.005). Cox proportional hazards regression model analysis showed that B7-H4 is an independent prognostic factor for patients with intrahepatic cholangiocarcinoma. Conclusion The expression of B7-H4 is increased in intrahepatic cholangiocarcinoma tissues, and the high expression of B7-H4 is closely related to the malignant pathological characteristics and poor prognosis of ICC patients, which has clinical guiding significance for predicting the prognosis of patients. -
Key words:
- Co-stimulatory molecule B7-H4 /
- Intrahepatic cholangiocarcinoma /
- Pathology /
- Prognosis
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表 1 肝内胆管癌及癌旁组织中B7-H4的表达[n(%)]
Table 1. Expression of B7-H4 in intrahepatic cholangiocarcinoma and adjacent tissues [n(%)]
组别 高表达 低表达 χ2 P 肝内胆管癌组织 40(44.4) 50(55.6) 15.363 < 0.001 肝内胆管癌癌旁组织 12(13.3) 78(86.7) 表 2 B7-H4在ICC患者的表达与临床病理特征的关系分析[n(%)]
Table 2. Analysis of the relationship between the expression of B7-H4 in ICC patients and clinicopathological characteristics [n(%)]
组别 n 高表达 低表达 χ2 P 性别 男 38 23(60.52) 15(39.48) 1.216 0.146 女 52 17(32.69) 35(67.31) 年龄(岁) ≥ 60 36 20(55.55) 16(44.45) 0.178 0.843 < 60 54 28(51.85) 26(48.15) CEA ≥ 5 62 28(45.16) 34(54.84) 3.249 0.019* < 5 28 12(42.85) 16(57.15) CA19-9(U/mL) ≥ 37 67 24(35.82) 43(64.18) 1.736 0.064 < 37 23 16(69.56) 7(30.44) 肿瘤大小(cm) ≥ 5 66 26(39.39) 40(60.61) 0.162 0.942 < 5 24 14(58.33) 10(41.67) 肿瘤分化 中−高分化 42 14(33.33) 28(66.67) 3.284 0.043* 低分化 48 26(54.16) 22(45.84) HBsAg 阳 60 13(21.66) 47(78.34) 2.196 0.128 阴 30 27(90.00) 3(10.00) 肿瘤数目 多发 65 29(44.61) 36(55.39) 0.419 0.142 单发 25 11(44.00) 14(56.00) TNM 分期 Ⅰ+Ⅱ 56 15(26.78) 41(73.22) 0.246 0.042* Ⅲ+Ⅳ 34 25(73.52) 9(26.48) 淋巴结转移 有 29 13(44.82) 16(55.18) 1.025 0.013* 无 61 27(44.26) 34(55.74) 微血管侵犯 有 32 15(46.87) 17(53.13) 1.118 0.049* 无 58 25(43.10) 33(56.90) 注:*P < 0.05 表 3 90例ICC患者单因素和多因素患者的总生存相关因素分析
Table 3. Analysis of factors related to overall survival of 90 ICC patients with univariate and multivariate patients
组别 OS P HR 95% CI 单因素分析 年龄(≥ 60 岁vs < 60 岁) 1.012 0.846~1.172 0.743 性别(男vs女) 1.142 0.513~2.146 0.677 肿瘤分化(中高分化vs低分化) 1.246 0.552~2.416 0.024 淋巴结转移(有vs无) 2.164 1.251~5.219 0.032 CA19-9(≥ 37 U/mL vs < 37 U/mL) 1.483 1.141~3.843 0.149 CEA(≥ 5 μL/L vs < 5 μL/L) 1.426 0.941~3.426 0.071 B7-H4高表达vs低表达) 3.154 0.946~3.226 0.011 多因素分析 淋巴结转移(有vs 无) 2.162 0.415~8.761 0.249 TNM 分期(Ⅰ+Ⅱvs Ⅲ/Ⅳ) 1.174 0.249~3.428 0.152 CEA(≥ 5 μL/L vs < 5 μL/L) 1.462 0.545~3.247 0.191 微血管侵犯 1.279 1.256~5.012 0.082 肿瘤分化(中高分化vs低分化) 1.637 0.492~2.246 0.324 B7-H4高表达vs低表达) 2.546 1.084~5.256 0.032 -
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