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CTAGE15 虽然在 ESCC 中的表达上调(图 2A,P < P < 0.001)。
0.001),但却与肿瘤的 T 分期(P < 0.01)及 N 分期 2.3 CTAGE15 表达对 KYSE⁃150 细胞恶性表型的
(P < 0.001)呈负相关(图2B、C)。按照CTAGE15表 影响
达量中位数将 120 例 ESCC 患者分为高表达和低表 与 HEEC 细胞相比,ESCC 细胞系 KYSE⁃150 细
达两组。CTAGE15 高表达组的 T 分期、N 分期较早 胞中 CTAGE15 表达显著上调(图 3A),在 siRNA 敲
的比例高于 CTAGE15 低表达组(表 4)。Kaplan⁃ 低KYSE⁃150细胞中CTAGE15的表达后(图3B),划
Meier法分析总体生存期也显示CTAGE15高表达组 痕实验结果显示,KYSE⁃150 细胞(对照组、siRNA1
患者的生存预后好于 CTAGE15 低表达组(图 2D, 组、siRNA2 组、siRNA3 组的平均愈合率为 31.4%、
表2 TCGA数据库中ESCC患者CTAGE15表达与临床病理因素的单因素Logistic回归分析
Table 2 Single⁃factor logistic regression analysis of GTAGE15 expression and clinicopathological factors in ESCC patients
based on TCGA databale
Variable Cases b OR(95%CI) P a
Gender(Female vs. male) 82 0.675(0.184-2.315) 0.534
Age( > 60 vs. ≤60) 82 1.113(0.449-2.773) 0.817
T stage(T3&T4 vs. T1&T2) 79 0.361(0.140-0.894) 0.030
N stage(N1&N2&N3 vs. N0) 78 0.440(0.172-1.094) 0.080
M stage(M1 vs. M0) 73 0.446(0.020-4.861) 0.518
Differentiation(G2&G3 vs. G1) 79 0.833(0.232-2.993) 0.780
a:Based on single factors logistics regression analysis. b:Some of the sample data is missing due to reasons such as not being collected or protecting
patient privacy obtained from the TCGA database. OR:odd ratio;CI:confidence interval.
表3 临床样本验证COX风险分析
Table 3 COX hazards analysis validated by clinical samples
Variable Dead(n=56)[n(%)] Alive(n=64)[n(%)] 5⁃year OS(%) HR(95%CI) a P a
Sex 0.051
Male 37(66.1) 36(56.3) 49.3 1.00
Female 19(33.9) 28(43.7) 59.6 0.542(0.293-1.001)
Age(years) 0.551
≤60 15(26.8) 21(32.8) 58.3 1.00
> 60 41(73.2) 43(67.2) 51.2 0.749(0.340-1.648)
T stage 0.517
T1⁃2 15(26.8) 26(40.6) 63.4 1.00
T3⁃4 41(73.2) 38(59.4) 48.1 0.791(0.389-1.609)
N stage 0.040
N0 21(37.5) 56(87.5) 72.7 1.00
N+ 35(62.5) 08(12.5) 18.6 4.002(1.064-15.049)
M stage 0.524
M0 32(57.1) 33(51.6) 50.8 1.00
M1 24(42.9) 31(48.4) 56.4 0.842(0.495-1.430)
Differentiation 0.061
G1 07(12.5) 07(10.9) 50.0 1.00
G2 38(67.9) 50(78.2) 78.1 0.544(0.223-1.327)
G3 11(19.6) 07(10.9) 38.9 1.219(0.413-3.598)
CTAGE15(qRT⁃PCR) <0.001
Low expression 43(76.8) 17(26.6) 28.3 1.00
High expression 13(23.2) 47(73.4) 78.3 0.103(0.097-0.498)
a:Based on Cox hazards analysis,the P⁃value was appropriately adjusted for gender,age,TNM staging,and tumor differentiation. N+:N1&N2&N3.