Association of Mismatch Repair Deficiency and Clinicopathological Parameters in Patients withLeft and Right-side Sporadic Colon Cancer
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摘要:
目的 在散发性左、右半肠癌中分别分析错配修复蛋白功能缺失(deficient mismatch repair,dMMR)与临床病理特征的相关性。 方法 收集昆明医科大学第一附属医院2014年1月至2019年9月经病理证实为腺癌的1 922例患者的临床病理资料,分别在散发性左、右半肠癌中分析dMMR与性别、年龄、体重指数(body mass index,BMI)、民族、血型、术前癌胚抗原(carcino-embryonic antigen,CEA)水平、病理类型、肿瘤分化程度、肿瘤直径、pT分期、pN分期、淋巴结检出数目、远处转移、(union for international cancer control,UICC)UICC分期、脉管侵犯、神经侵犯的关联。 结果 共有1922例散发性肠癌符合纳入标准,散发性右半肠癌患者占23.99%(461/1922),散发性左半肠癌患者占76.01%(1461/1922)。所有散发性肠癌患者dMMR率为23.47%(451/1922),散发性右半肠癌dMMR率38.83%(179/461);散发性左半肠癌dMMR率18.62%(272/1461)。与既往研究一致的是,所有散发性肠癌的dMMR更多见于年龄 < 62岁(OR = 1.551,P < 0.001)、右半肠癌(OR = 2.603,P < 0.001)、肿瘤直径≥4 cm(OR = 1.362,P = 0.009)、病理分化程度为中低分化(OR = 1.538,P = 0.046)、低分化(OR = 2.124,P = 0.013)及未分化(OR = 1.850,P = 0.045)、UICC分期I~II期(OR = 1.340,P = 0.014)、无神经侵犯者(OR = 1.407,P = 0.004)。在散发性右半肠癌中,dMMR多见于年龄 < 62岁(OR = 1.888,P = 0.001),pT1~T2(OR = 3.778,P = < 0.001)以及肿瘤直径≥4 cm者(OR = 1.856,P = 0.012);在散发性左半肠癌中,dMMR多见于年龄 < 62岁(OR = 1.525,P = 0.002),肿瘤直径≥4 cm(OR = 1.391,P = 0.016),无神经侵犯(OR = 1.454,P = 0.009)。 结论 不论肠道肿瘤原发部位如何,dMMR均多见于年龄 < 62岁,肿瘤直径≥4 cm者,而无神经侵犯及pT1~T2分别多见于散发性左半及右半肠癌。 -
关键词:
- 散发性结直肠癌 /
- 错配修复蛋白功能缺失 /
- 左半肠癌 /
- 右半肠癌 /
- 临床病理特征
Abstract:Objective To analyze the correlation between mismatch repair-deficient (dMMR) and clinicopathological characteristics in left and right-side sporadic colorectal cancers. Methods The clinicopathological data of 1922 patients who were pathologically confirmed as adenocarcinoma from January 2014 to September 2019 in the First Affiliated Hospital of Kunming Medical University were collected, and the dMMR and gender, age, and body mass index (BMI), ethnicity, blood type, preoperative CEA level, pathological type, tumor differentiation, tumor diameter, T stage, N stage, number of lymph nodes detected, distant metastasis, UICC stage, vascular invasion, perineural invasion were analyzed in sporadic left and right colorectal cancers. Results A total of 1922 cases of sporadic colorectal cancer met the inclusion criteria. Patients with sporadic right-side colon cancer accounted for 23.99% (461/1922), and patients with sporadic left-side colorectal cancer accounted for 76.01% (1461/1 922). The dMMR rate of all patients with sporadic colorectal cancer was 23.47% (451/1922), the dMMR rate of sporadic right-side colon cancer was 38.83% (179/461), and the dMMR rate of sporadic left-side colorectal cancer was 18.62% (272/1461). Consistent with previous studies, the dMMR of all sporadic colorectal cancers in this study is more common in age < 62 years (OR = 1.551, P < 0.001), right-side colon (OR = 2.603, p < 0.001), tumor diameter≥4 cm (OR = 1.362, P = 0.009), the degree of pathological differentiation is moderate-poorly differentiated (OR = 1.538, P = 0.046), poorly differentiated (OR = 2.124, P = 0.013)and undifferentiated (OR = 1.850, P = 0.045)), UICC stages I~II (OR = 1.340, P = 0.014), and patients without perineural invasion (OR = 1.407, P = 0.004). In sporadic right colon cancer, dMMR is more common in patients younger than 62 years old (OR = 1.888, P = 0.001), pT1~T2 (OR = 3.778, P = 0.000)and tumor diameter≥4 cm (OR = 1.856, p = 0.012); in sporadic left-side colorectal cancer, dMMR is more common in age < 62 years (OR = 1.525, P = 0.002), tumor diameter ≥4 cm (OR = 1.391, P = 0.016), and no perineural invasion (OR = 1.454, P = 0.009). Conclusions Regardless of the primary site of intestinal tumors, dMMR is more common in patients younger than 62 years and tumor diameter≥4 cm, while no perineural invasion and pT1~T2 are more common in sporadic left-side and right-side colorectal cancers, respectively. -
表 1 1922例散发性肠癌MMR表达与临床病理特征的关系[n(%)]
Table 1. Relationship between different MMR status and clinicopathological characteristics of all patients with sporadic colorectal cancer in the cohort [n(%)]
临床病理特征 MMR χ2 P pMMR(n = 1471) dMMR(n = 451) 性别 0.612 0.434 男 872(77.17) 258(22.83) 女 599(75.63) 193(24.37) 年龄(岁) 13.188 < 0.001* < 62 675(72.89) 251(27.11) ≥62 796(79.92) 200(20.08) BMI(kg/m2) 0.309 0.857 < 18.5 136(77.71) 39(22.29) 18.5~24 854(76.11) 268(23.89) ≥24 481(76.96) 144(23.04) 民族 0.174 0.677 汉族 1409(76.45) 434(23.55) 少数民族 62(78.48) 17(21.52) 血型 1.236 0.744 A+(Rh+) 507(76.70) 154(23.30) B+(Rh+) 381(74.85) 128(25.15) O+(Rh+) 453(77.44) 132(22.56) AB+(Rh+) 130(77.84) 37(22.16) CEA(ng/mL) 2.514 0.113 < 5 888(75.32) 291(24.68) ≥5 583(78.47) 160(21.53) 肿瘤部位 79.708 < 0.001* 右半肠癌 282(61.17) 179(38.83) 左半肠癌 1189(81.38) 272(18.62) 病理学类型 13.165 0.001* 普通腺癌 1331(77.75) 381(22.25) 粘液腺癌 35(63.64) 20(36.36) 混合腺癌 105(67.74) 50(32.26) 病理分化程度 26.828 < 0.001* 高 224(79.72) 57(20.28) 中高 471(79.03) 125(20.97) 未 33(62.26) 20(37.74) 中低 87(67.44) 42(32.56) 低 31(57.41) 23(42.59) 中 625(77.26) 184(22.74) 肿瘤直径(cm) 22.392 < 0.001* < 4 715(81.53) 162(18.47) ≥4 756(72.34) 289(27.66) pT 分期 4.538 0.209 T1 69(83.13) 14(16.87) T2 286(75.07) 95(24.93) T3 750(75.45) 244(24.55) T4 366(78.88) 98(21.12) pT 分期 0.000 0.988 T1~T2 355(76.51) 109(23.49) T3~T4 1116(76.54) 342(23.46) pN 分期 6.651 0.084 N0 853(74.56) 291(25.44) N1 409(78.65) 111(21.35) N2a 111(81.02) 26(18.98) N2b 98(80.99) 23(19.91) 清扫淋巴结数目 15.782 < 0.001* < 12 459(82.55) 97(17.45) ≥12 1012(74.08) 354(25.92) 远处转移 0.203 0.652 阴性 1388(76.64) 423(23.36) 阳性 83(74.77) 28(25.23) UICC 分期 7.366 0.061 Ⅰ 279(75.00) 93(25.00) Ⅱ 547(74.52) 187(25.48) Ⅲ 569(79.92) 143(20.08) Ⅳ 76(73.08) 28(26.92) UICC 分期 4.972 0.026* Ⅰ-Ⅱ 826(74.68) 280(25.32) Ⅲ-Ⅳ 645(79.04) 171(20.96) 脉管侵犯 2.417 0.120 阴性 1163(77.33) 341(22.67) 阳性 308(73.68) 110(26.32) 神经侵犯 6.090 0.014* 阴性 870(74.61) 296(23.59) 阳性 601(79.50) 155(20.50) *P < 0.05。 表 2 1922例散发性肠癌dMMR表型情况[n(%)]
Table 2. Different dMMR phenotype of all patients with sporadic colorectal cancer in the cohort [n(%)]
dMMR 总数 比率(%) 右半肠癌 左半肠癌 MLH1 46 2.39(46/1922) 10(0.52) 36(1.87) MSH2 18 0.94(18/1922) 5(0.26) 13(0.68) MSH6 14 0.73(14/1922) 4(0.21) 10(0.52) PMS2 146 7.60(146/1922) 49(2.55) 97(5.05) MLH1 + PMS2 131 6.82(131/1922) 71(3.69) 60(3.12) MSH2 + MSH6 23 1.20(23/1922) 15(0.78) 8(0.42) MLH1 + MSH2 + MSH6 + PMS2 11 0.57(11/1922) 3(0.16) 8(0.41) Other* 62 3.23(62/1922) 22(1.14) 40(2.08) Other*:MLH1 + MSH2(14例);MLH1 + MSH6(4例);MSH2 + PMS2(10例);MSH6 + PMS2(11例);MLH1 + MSH2 + MSH6(5例);MLH1 + MSH2+PMS2(10例);MLH1 + MSH6 + PMS2(4例);MSH2 + MSH6 + PMS2(4例)。 表 3 1922例散发性肠癌dMMR与临床病理特征的多因素分析
Table 3. Multivariate results of the relationship between dMMR status and clinicopathological features of all patients with sporadic colorectal cancer in the cohort
临床病理特征 dMMR OR 95% CI P 年龄(岁) < 62 1.551 1.243~1.936 < 0.001* ≥62 Reference 肿瘤部位 右半肠癌 2.603 2.044~3.314 < 0.001* 左半肠癌 Reference UICC 分期 I~II 1.340 1.062~1.691 0.014* III~IV Reference 病理分化程度 高 0.818 0.578~1.157 0.256 中高 0.884 0.677~1.153 0.363 未 1.850 1.013~3.377 0.045* 中低 1.538 1.008~2.346 0.046* 低 2.124 1.169~3.861 0.013* 中 Reference 肿瘤直径(cm) ≥4 1.362 1.079~1.719 0.009* < 4 Reference 神经侵犯 阴性 1.407 1.112~1.787 0.004* 阳性 Reference *P < 0.05。 表 4 461例散发性右半肠癌MMR与临床病理特征的关系[n(%)]
Table 4. Relationship between different MMR status and clinicopathological characteristics of the 461 patients with right-side colon cancer in the cohort [n(%)]
临床病理特征 MMR χ2 P pMMR dMMR 性别 282 179 0.244 0.621 男 161(62.16) 98(37.84) 女 121(59.90) 81(40.10) 年龄(岁) < 62 112(53.85) 96(46.15) 8.562 0.003* ≥62 170(67.19) 83(32.81) BMI(kg/m2) < 18.5 29(61.70) 18(38.30) 0.125 0.940 18.5~24 180(61.64) 112(38.36) ≥24 73(59.83) 49(40.17) 民族 汉族 271(60.90) 174(39.10) 0.401 0.527 少数民族 11(68.75) 5(31.25) 血型 A+(Rh+) 104(63.80) 59(36.20) 1.800 0.615 B+(Rh+) 74(60.16) 49(39.84) O+(Rh+) 83(61.48) 52(38.52) AB+(Rh+) 21(52.50) 19(47.50) CEA(ng/mL) < 5 153(57.74) 112(42.26) 3.097 0.078 ≥5 129(65.82) 67(34.18) 病理学类型 普通腺癌 242(63.02) 142(36.98) 4.509 0.105 粘液腺癌 5(38.46) 8(61.54) 混合腺癌 35(54.69) 29(45.31) 病理分化程度 高 37(61.67) 23(38.33) 8.505 0.130 中高 93(64.58) 51(35.42) 未 5(38.46) 8(61.54) 中低 22(51.16) 21(48.84) 低 11(45.83) 13(54.17) 中 114(64.41) 63(35.59) 肿瘤直径(cm) < 4 79(67.52) 38(32.48) 2.662 0.103 ≥4 203(59.01) 141(40.99) pT 分期 T1 8(61.54) 5(38.46) 21.877 < 0.001* T2 13(31.71) 28(68.29) T3 165(60.22) 109(39.78) T4 96(72.18) 37(27.82) pT 分期 T1~T2 21(38.89) 33(61.11) 12.786 < 0.001* T3~T4 261(64.13) 146(35.87) pN 分期 N0 162(57.45) 120(42.55) 6.438 0.092 N1 79(64.75) 43(35.25) N2a 18(64.29) 10(35.71) N2b 23(79.31) 6(20.69) 清扫淋巴结数目 < 12 28(63.64) 16(36.36) 0.124 0.724 ≥12 254(60.91) 163(39.09) 远处转移 阴性 265(61.34) 167(38.66) 0.085 0.771 阳性 17(58.62) 12(41.38) UICC 分期 Ⅰ 17(36.96) 29(63.04) 13.943 0.003* Ⅱ 140(62.50) 84(37.50) Ⅲ 109(66.87) 54(33.13) Ⅳ 16(57.14) 12(42.86) UICC 分期 Ⅰ-Ⅱ 157(58.15) 113(41.85) 2.508 0.113 Ⅲ-Ⅳ 125(65.45) 66(34.55) 脉管侵犯 阴性 209(61.65) 130(38.35) 0.125 0.724 阳性 73(59.84) 49(40.16) 神经侵犯 阴性 160(58.19) 115(41.81) 2.565 0.109 阳性 122(65.59) 64(34.41) *P < 0.05。 表 5 461例散发性右半肠癌dMMR与临床病理特征的多因素分析
Table 5. Multivariate results of the relationship between dMMR status and clinicopathological features of the 461 patients with right-side colon cancer
临床病理特征 dMMR OR 95% CI P 年龄(岁) < 62 1.888 1.276~2.793 0.001* ≥62 Reference pT 分期 T1~T2 3.778 2.020~7.064 < 0.001* T3~T4 Reference 肿瘤直径(cm) ≥4 1.856 1.144~3.009 0.012* < 4 Reference *P < 0.05。 表 6 1461例散发性左半肠癌MMR与临床病理特征的关系 [n(%)]
Table 6. Relationship between different MMR status and clinicopathological characteristics of the 1461 patients with left-side colon cancers in the cohort [n(%)]
临床病理特征 MMR χ2 P pMMR dMMR 性别 1189 272 0.087 0.768 男 711(81.63) 160(18.37) 女 478(81.02) 112(18.98) 年龄(岁) < 62 563(78.41) 155(21.59) 8.222 0.004* ≥62 626(84.25) 117(15.75) BMI(kg/m2) < 18.5 107(83.59) 21(16.41) 0.454 0.797 18.5~24 674(81.20) 156(18.80) ≥24 408(81.11) 95(18.89) 民族 汉族 1138(81.40) 260(18.60) 0.008 0.929 少数民族 51(80.95) 12(19.05) 血型 A+(Rh+) 403(80.92) 95(19.08) 2.805 0.423 B+(Rh+) 307(79.53) 79(20.47) O+(Rh+) 370(82.22) 80(17.78) AB+(Rh+) 109(85.83) 18(14.17) CEA(ng/mL) < 5 735(80.42) 179(19.58) 1.506 0.220 ≥5 454(83.00) 93(17.00) 病理学类型 普通腺癌 1089(82.00) 239(18.00) 4.278 0.118 粘液腺癌 30(71.43) 12(28.57) 混合腺癌 70(76.92) 21(23.08) 病理分化程度 高 187(84.62) 34(15.38) 12.764 0.026* 中高 378(83.63) 74(16.37) 未 28(70.00) 12(30.00) 中低 65(75.58) 21(24.42) 低 20(66.67) 10(33.33) 中 511(80.85) 121(19.15) 肿瘤直径(cm) < 4 636(83.68) 124(16.32) 5.538 0.019* ≥4 553(78.89) 148(21.11) pT 分期 T1 61(87.14) 9(12.86) 1.815 0.612 T2 273(80.29) 67(19.71) T3 585(81.25) 135(18.75) T4 270(81.57) 61(18.43) pT 分期 T1~T2 334(81.46) 76(18.54) 0.002 0.960 T3~T4 855(81.35) 196(18.65) pN 分期 N0 691(80.16) 171(19.84) 2.581 0.461 N1 330(82.91) 68(17.09) N2a 93(85.32) 16(14.68) N2b 75(81.52) 17(18.48) 清扫淋巴结数目 < 12 431(84.18) 81(15.82) 4.070 0.044* ≥12 758(79.87) 191(20.13) 远处转移 阴性 1123(81.44) 256(18.56) 0.046 0.830 阳性 66(80.49) 16(19.51) UICC 分期 Ⅰ 262(80.37) 64(19.63) 3.456 0.327 Ⅱ 407(79.80) 103(20.20) Ⅲ 460(83.79) 89(16.21) Ⅳ 60(78.95) 16(21.05) UICC 分期 Ⅰ-Ⅱ 669(80.02) 167(19.98) 2.381 0.123 Ⅲ-Ⅳ 520(83.20) 105(16.80) 脉管侵犯 阴性 954(81.89) 211(18.11) 0.971 0.324 阳性 235(79.39) 61(20.61) 神经侵犯 阴性 710(79.69) 181(20.31) 4.340 0.037* 阳性 479(84.04) 91(15.96) *P < 0.05。 表 7 1461例散发性左半肠癌dMMR与临床病理特征的多因素分析
Table 7. Multivariate results of the relationship between dMMR status and clinicopathological features of the 1461 patients with left-side colon cancer
临床病理特征 dMMR OR 95% CI P 年龄(岁) < 62 1.525 1.166~1.995 0.002* ≥62 Reference 肿瘤直径(cm) ≥4 1.391 1.064~1.819 0.016* < 4 Reference 神经侵犯 阴性 1.454 1.096~1.928 0.009* 阳性 Reference *P < 0.05。 -
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