阑尾切除改变肠道菌群对结直肠癌预后影响的临床研究

刘改霞 邱铨鹏 任博博 张浩为 刘辉 李雯 石晨 佘军军

刘改霞, 邱铨鹏, 任博博, 张浩为, 刘辉, 李雯, 石晨, 佘军军. 阑尾切除改变肠道菌群对结直肠癌预后影响的临床研究[J]. 中国肿瘤临床, 2021, 48(24): 1259-1265. doi: 10.12354/j.issn.1000-8179.2021.20210753
引用本文: 刘改霞, 邱铨鹏, 任博博, 张浩为, 刘辉, 李雯, 石晨, 佘军军. 阑尾切除改变肠道菌群对结直肠癌预后影响的临床研究[J]. 中国肿瘤临床, 2021, 48(24): 1259-1265. doi: 10.12354/j.issn.1000-8179.2021.20210753
Gaixia Liu, Quanpeng Qiu, Bobo Ren, Haowei Zhang, Hui Liu, Wen Li, Chen Shi, Junjun She. Clinical study of the effect of intestinal flora alteration induced by appendectomy on prognosis of colorectal cancer[J]. CHINESE JOURNAL OF CLINICAL ONCOLOGY, 2021, 48(24): 1259-1265. doi: 10.12354/j.issn.1000-8179.2021.20210753
Citation: Gaixia Liu, Quanpeng Qiu, Bobo Ren, Haowei Zhang, Hui Liu, Wen Li, Chen Shi, Junjun She. Clinical study of the effect of intestinal flora alteration induced by appendectomy on prognosis of colorectal cancer[J]. CHINESE JOURNAL OF CLINICAL ONCOLOGY, 2021, 48(24): 1259-1265. doi: 10.12354/j.issn.1000-8179.2021.20210753

阑尾切除改变肠道菌群对结直肠癌预后影响的临床研究

doi: 10.12354/j.issn.1000-8179.2021.20210753
基金项目: 本文课题受国家自然科学基金项目(编号:82173394)资助
详细信息
    作者简介:

    刘改霞:专业方向为肠道微生态与胃肠道肿瘤的研究

    通讯作者:

    佘军军 junjunshe1975@sina.com

Clinical study of the effect of intestinal flora alteration induced by appendectomy on prognosis of colorectal cancer

Funds: This was supported by the National Natural Science Foundation of China (No. 82173394)
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  • 摘要:   目的  探究既往阑尾切除对结直肠癌预后的影响及可能存在机制。  方法  回顾性收集2013年1月至2016年12月西安交通大学第一附属医院收治的763例结直肠癌患者的临床及病理信息,根据肿瘤诊断前是否存在阑尾切除史,分为阑尾切除组(89例)和非阑尾切除组(674例),分析比较两组患者的总体生存率,以及既往阑尾切除史与结直肠癌患者预后的关系。应用阑尾切除后结直肠癌诱导小鼠模型,通过实时荧光定量聚合酶链式反应(qPCR)比较其粪便中拟杆菌属(Bacteroides)、普氏菌属(Prevotella)、布氏菌属(Blautia)相对丰度。  结果  阑尾切除组患者的3、5年总体生存率均明显低于非阑尾切除组(61.8% vs. 75.1%,46.4% vs. 69.3%),差异具有统计学意义(χ2=13.777,P<0.05);阑尾切除是结直肠癌预后独立危险因素(HR=1.475,95%CI:1.030~2.114)。阑尾切除后行氧化偶氮甲烷(AOM)+ 葡聚糖硫酸钠(DSS)诱导发生结直肠癌的小鼠,其粪便中显著富集拟杆菌属、普氏菌属,而布氏菌属丰度明显降低。  结论  阑尾切除可能是结直肠癌不良预后的独立危险因素,其潜在机制和阑尾切除导致某些致癌致炎细菌在肠道中富集相关。

     

  • 图  1  小鼠阑尾切除后结直肠癌诱导模型制作流程图[11]

    图  2  阑尾切除与非阑尾切除结直肠癌患者总生存率曲线

    图  3  阑尾切除后结直肠癌诱导小鼠模型粪便中普氏菌属、拟杆菌属、布氏菌属相对丰度

    A:普氏菌属丰度差异;B:拟杆菌属丰度差异 ;C:布氏菌属丰度差异;*:P<0.05;***:P<0.001;Prevotella:普氏菌属;Bacteroides:拟杆菌属;Blautia:布氏菌属;NS:差异无统计学意义

    表  1  阑尾切除组与非阑尾切除组基本临床资料 例(%)

    临床基线资料阑尾切除组(89例)非阑尾切除组(674例)χ2/ZP
    性别(例)χ2=0.4300.521
     男52(58.4)369(54.7)
     女37(41.6)305(45.3)
    年龄(岁)χ2=0.1930.660
     <6550(56.2)362(53.7)
     ≥6539(43.8)312(46.3)
    吸烟Z=−0.3100.757
     无64(1.9)478(70.9)
     有18(20.2)152(22.6)
     已戒烟7(7.9)44(6.5)
    饮酒Z=−0.2590.796
     无82(92.1)626(92.9)
     有7(7.9)48(7.1)
    糖尿病史χ2=1.6480.199
     无77(86.5)612(90.8)
     有12(13.5)62(9.2)
    T分期(期)χ2=0.0920.762
     T1~T212(13.5)99(14.7)
     T3~T477(86.5)575(85.3)
    淋巴结转移Z=−1.4130.158
     阴性47(52.8)392(58.2)
     阳性35(39.3)272(40.3)
     无法评价7(7.9)10(1.5)
    远处转移χ2=2.5350.111
     有4(4.5)65(9.6)
     无85(95.5)609(90.4)
    临床分期(期)χ2=0.6580.417
     Ⅰ~Ⅱ46(51.7)379(56.2)
     Ⅲ~Ⅳ43(48.3)295(43.8)
    R0切除χ2=1.3940.238
     否12(13.5)64(9.5)
     是77(86.5)610(90.5)
    术后放/化疗χ2=1.1800.277
     否57(64.0)391(58.0)
     是32(36.0)283(42.0)  
    下载: 导出CSV

    表  2  不同因素对于结直肠癌总生存率影响的Cox单因素与多因素回归分析

    因素例数(%)
    (n=763)
    单因素分析多因素分析
    风险比P风险比P
    年龄(岁)<0.001<0.001
     <65412(54.0)11
     ≥65351(46.0)2.378(1.746~3.238)2.102(1.533~2.882)
    性别0.9430.763
     男421(55.2)11
     女342(44.8)1.051(0.811~1.361)1.042(0.795~1.367)
    阑尾切除<0.0010.034
     否674(88.3)11
     是89(11.7)2.023(1.392~2.939)1.475(1.030~2.114)
    吸烟0.100
     无542(71.0)1
     有170(22.3)0.915(0.292~2.865)
     戒烟51(6.7)1.305(0.830~2.053)
    饮酒0.740
     无708(92.8)1
     有55(7.2)0.681(0.302~2.606)
    糖尿病0.0040.151
     无689(90.3)11
     有74(9.7)1.724(1.193~2.493)1.321(0.904~1.931)
    临床分期<0.0010.003
     Ⅰ~Ⅱ425(55.7)11
     Ⅲ~Ⅳ338(44.3)4.355(3.257~5.823)3.091(1.460~6.546)
    T分期<0.0010.931
     T1~T2111(14.5)11
     T3~T4652(85.5)1.744(1.124~2.706)0.979(0.611~1.571)
    淋巴结转移<0.0010.789
     阴性439(57.5)11
     阳性307(40.3)3.321(2.507~4.399)0.992(0.508~1.939)
     无法评价17(2.2)10.321(5.990~17.784)1.231(0.546~2.775)
    远处转移<0.0010.001
     无694(91.0)11
     有69(9.0)5.034(3.691~6.864)1.985(1.324~2.975)
    分化程度<0.001<0.001
     高39(5.1)11
     中606(79.4)1.828(0.809~4.129)1.525(0.663~3.509)
     低118(15.5)4.568(1.976~10.564)2.779(1.172~6.590)
    肿瘤位置0.0250.613
     近端结肠(盲肠-脾曲)162(21.2)11
     远端结肠(降结肠-乙状结肠)139(18.2)0.843(0.572~1.240)0.817(0.547~1.220)
     直肠(直乙交界-直肠)462(60.6)0.661(0.486~0.899)0.914(0.658~1.269)
    R0切除<0.0010.002
     否76(10.0)11
     是687(90.0)0.199(0.148~0.268)0.534(0.357~0.799)
    术后放/化疗<0.001<0.001
     否448(58.7)11
     是315(41.3)0.609(0.464~0.799)  0.590(0.446~0.781) 
    下载: 导出CSV

    表  3  阑尾切除暴露时间与结直肠癌总生存率相关关系的Cox单因素与多因素回归分析

    因素例数(%)
    (n=763)
    单因素分析多因素分析*
    风险比P风险比P
    阑尾切除时间(年)0.0020.025
     无674(88.4)11
     1~310(1.3)2.649(1.245~5.635)2.772(1.272~6.043)
     3~1010(1.3)1.301(0.483~3.503)0.828(0.301~2.277)
     ≥1069(9.0)1.827(1.256~2.659) 1.414(0.961~2.080) 
    *:根据年龄、性别、肿瘤分化、肿瘤临床分期、肿瘤位置、R0切除、术后放/化疗、糖尿病进行校正
    下载: 导出CSV
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  • 收稿日期:  2021-05-11
  • 录用日期:  2021-11-30

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