血清CA242 CA50和LN水平与大肠癌转移及病理分期的关系
作者:于文彬 陈名声 张小宁 陈云春
单位:第四军医大学西京医院检验科, 陕西 西安 710033
关键词:大肠癌;CA242,CA50;层粘连蛋白
第四军医大学学报001021 摘 要:目的 探讨CA242,CA50和层粘连蛋白(LN)水平与大肠癌转移及病理分期的关系. 方法 采用放射免疫分析法. 结果 38例大肠癌患者术前CA242,CA50和LN血清含量明显高于术后(P<0.01,P<0.05和P<0.05);27例有淋巴结转移者CA242,CA50及LN血清含量明显高于11例无淋巴结转移者(P<0.01,P<0.05和P<0.05);Dukes病理分期中,CA242血清含量Ⅳ期组(16例)高于Ⅲ期组(11例),Ⅲ期组高于Ⅰ+Ⅱ期组(11例),差异均非常显著(P<0.01);CA50血清含量,Ⅲ期组和Ⅳ期组均明显高于Ⅰ+Ⅱ期组(P<0.01);LN血清含量,Ⅲ期组高于Ⅰ+Ⅱ期组(P<0.05). 结论 CA242,CA50含量与大肠癌的病理分期和转移密切相关,对病情监测及预后有一定的临床价值.
, 百拇医药
中图号:R735.34 文献标识码:B
文章编号:1000-2790(2000)10-1238-03
Relation of serum levels of CA242, CA50 and LN with metastases and patholegic stages of large intestine cancer
YU Wen-Bin, CHEN Ming-Sheng, ZHANG Xiao-Ning, CHEN Yun-Chun
(Department of Clinical Laboratory, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China)
, 百拇医药
Abstract: AIM To investigate the relation of serum of levels CA242,CA50 and laminin (LN) with metastases and pathologic stages of large intestine cancer. METHODS Three tumor markers were detected by radioimmunoassay. RESULTS Serum levels of CA242,CA50 and LN of 38 patients with large intestine cancer before operations were apparently higher than those after operations (P<0.01, P<0.05 and P<0.05 respectively); the contents of CA242, CA50 and LN in sera of 27 patients with lymphold node metastases were apparently higher than those of 11 cases without the metastases (P<0.01,P<0.05 and P<0.05 respectively). The 38 patients were divided into three groups by Dukes pathologic stage. The contents of CA242 in sera of patients at stage Ⅳ(16 cases) were higher than those of patients at stage Ⅲ(11 cases), and the latter was higher than those of patients at Ⅰ+Ⅱ(11 cases). The differences among the three groups were all very significant(P<0.01). The contents of CA50 in sera of stage Ⅲ and Ⅳ groups were apparently higher than those of stage Ⅰ+Ⅱ group(P<0.01). The content of LN in sera of patients at stage Ⅲ group was higher than that of stage Ⅰ+Ⅱ group(P<0.05) CONCLUSION There was close correlation between contents of CA242, CA50 and LN in sera and pathological stages and metastases of large intestine cancer. These results may be of clinical benifit to the monitoring of patients' conditions.
, http://www.100md.com
Keywords:large intestine cancer; CA242; CA50; laminin
0 引言
肿瘤的诊断和预后判断是临床重要课题之一. 除影像学、内窥镜、活检等手段外,血清肿瘤标志物检测亦受到越来越广泛的重视. 就大肠癌肿瘤标志物而言,除传统的CEA之外,CA242,CA50和LN亦是近年来常用的标志物. 除诊断意义之外,这些标志物与转移、病理分期等与预后有关的临床意义如何,目前国内尚未见报道. 我们检测了38例大肠癌患者手术前后的血清CA242,CA50及LN含量,并对有无转移者之间,不同病理期之间上述标志物血清含量进行了比较,旨在探讨其临床预后方面的实用价值.
1 对象和方法
1.1 对象 38(男25,女13)例大肠癌患者为本院住院患者,年龄33~69(平均59.3)岁,全部经手术及病理组织确诊. 其中结肠癌28例,直肠癌10例. Dukes Ⅰ+Ⅱ期11例,Ⅲ期11例,Ⅳ期16例. 根据组织学类型分,腺癌26例,粘液腺癌6例,管状腺癌6例.
, 百拇医药
1.2 方法 大肠癌患者手术前及后10 d于清晨抽取静脉血、离心,取上清液,置于-20℃保存待测. 采用放射免疫法,CA242,CA50药盒由中国医学科学院肿瘤研究所北京佳科生物技术公司供给. LN由上海海军医学研究所提供,操作由专人按说明书进行.
统计学处理:数据以均数±标准差(±s)采用配对、非配对t检验和方差分析.
2 结果
2.1 手术前后血清CA242,CA50及LN水平 结果大肠癌患者38例术前血清CA242,CA50和LN水平分别(48±72)×103 U*L-1,(27±39)×103 U*L-1,(105±9) μg*L-1,术后分别为(26±41) ×103 U*L-1,(18±30) ×103 U*L-1,(96±11) μg*L-1,前者高于后者,差异显著(P<0.01,P<0.05和P<0.05).
, 百拇医药
2.2 血清CA242,CA50和LN水平与淋巴结转移的关系 大肠癌患者38例中27例淋巴结转移组血清CA242,CA50和LN水平分别(52±78) ×103 U*L-1,(38±48) ×103 U*L-1,(118±11) μg*L-1,淋巴结未转移组11例分别为(17±21)×103 U*L-1,(17±23) ×103 U*L-1,(103±7) μg*L-1,差别显著(P<0.01,P<0.05和P<0.05).
2.3 大肠癌Dukes分期与血清CA242,CA50及LN含量的关系 大肠癌患者Dukes病理分期,血清CA242的含量随病情发展而逐渐增高,相互之间差别非常显著. CA50含量亦有同样趋势,Ⅲ期和Ⅳ期与Ⅰ+Ⅱ期差别非常显著,但Ⅲ期和Ⅳ期间无显著差别,可能与病例数少有关. LN含量仅Ⅲ期显著高于与Ⅰ+Ⅱ期,而Ⅲ期与Ⅳ期以及Ⅳ期与Ⅰ+Ⅱ期间差别不显著,亦可能与病例数少有关(Tab 1).
, http://www.100md.com
表 1 大肠癌Dukes分期与血清CA242、CA50及LN含量
Tab 1 Relationship between Dukes stage of large intestine cancer and serum level CA242, CA50 and LN
Group
n
p(CA242)/
(U*L-1)
p(CA50)/
(U*L-1)
p(LN)/
, http://www.100md.com
(μg*L-1)
stageⅠ+Ⅱ
11
17±21
17±23
104± 7
stage Ⅲ
11
37±64b
36±38b
124±11a
, http://www.100md.com stage Ⅳ
16
65±88bd
43±60b
112± 9a
aP<0.05,bP<0.01 vs stageⅠ+Ⅱ,dP<0.01 vs stage Ⅲ.
3 讨论
CA是一类肿瘤相关抗原,其化学成分为高糖基化的大分子粘蛋白[1,2],在癌变过程中由肿瘤组织和癌细胞产生,分泌或释放于血中[3]. CA19-9,CA242和CA50与腺癌密切相关,对胰腺癌和结肠癌而言,是具有较高特异性和敏感性的新型肿瘤相关抗原[1,4,5]. 血清CA242含量在胰腺癌和晚期结直肠癌患者均明显升高[1],且对结直肠癌而言,CA242比CA50及CA19-9的敏感性更高. 我们的结果表明,38例大肠癌患者术前血清CA242含量明显高于术后(P<0.01),CA50含量亦明显高于术后(P<0.05). 38例患者中有27例发生淋巴结转移,其血清CA242和CA50含量明显高于11例未发生淋巴结转移者(P<0.01). 在Dukes病理分期中,Ⅳ期患者的血清CA242的含量明显高于Ⅲ期,而Ⅲ期又明显高于Ⅰ+Ⅱ组,各组间差异均非常显著(P<0.01). 血清CA50的含量,虽然Ⅳ期组与Ⅲ期组间无统计学差异,但它们均显著高于Ⅰ+Ⅱ期组(P<0.01). 以上结果说明,CA242和CA50与大肠癌的生物学行为密切相关,即随着病情的恶化和发生转移,其血清含量也越来越明显升高,与国外报道相一致[1],对临床上判断大肠癌的病情发展、预后估计和疗效观察都可能有较大的实际意义.
, http://www.100md.com
近年研究表明,LN的水平与肿瘤的病变,尤其是与肿瘤浸润及转移密切相关,引起学者们的高度关注[6]. 我们的结果为,大肠癌患者血清LN水平,手术前明显高于手术后,有转移者明显高于无转移者,Dukes病理分期Ⅲ期组明显高于Ⅰ+Ⅱ期组(P<0.05). 说明血清LN水平的变化亦与肿瘤生物学行为也密切相关,但其LN水平升高的确切机制尚不清楚[7]. 文献报道血清LN水平的增加与肿瘤细胞的浸润深度和分化程度有关[8].
综上所述,随着肿瘤的恶化、淋巴结转移的出现,血清CA242,CA50和LN的水平均显著升高. 手术切除肿瘤后,上述标志物水平又可不同程度地降低,表明血清CA242,CA50和LN是肿瘤细胞源性的,同时与肿瘤细胞的浸润、转移等生物学行为密切相关. 因此,我们认为,动态监测大肠癌患者手术前后及病程中CA242,CA50及LN的血清含量变化,对判断患者的病情、观察疗效及预后均有一定的参考意义.
, 百拇医药
作者简介:于文彬(1944-),男(汉族),山东省潍坊市人. 1969年上海医科大学医学系毕业,检验科主任、教授,硕士研究生导师,陕西省检验学会副主任委员,发表论文30篇. Tel.(029)3375455
参考文献:
[1] Nilsson O, Johansson C, Glimelius B et al. Sensitivity and speciticity of CA242 in gastro-intestinal cancer: A comparison with CEA, CA50 and CA19-9[J]. Br J Cancer, 1992;65(3):215-221.
[2] Haglund C, Roberts PJ, Jalanko et al. Tumor markers CA19-9 and CA50 in digestive tract [J]. Scad J Gastroenterol, 1992;27(2):169-174.
, 百拇医药
[3] Pallsson B, Masson P, Sandbarg A. The influence of cholestasis on CA50 and CA242 in pancreas cancer and benign biliopancreatice diseases[J]. Scad J Gastroenterol,1993;28 (11):981-985.
[4] Johansson C, Nilsson O, Beackstrom D et al. Novel epitopes on the CA50 carrying antigen: Chemical and immunochemical studies[J]. Tumor Biol, 1991;12(2):159-163.
[5] Kuuselap, Haglund C, Roberts PJ. Comparison of a new tumor marker CA242 with CA19 9, CA50 and carcinoembryonic antigenc(CEA) in digestive tract diseases[J]. Br J Cancer,1991;63(7):636-640.
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[6] Aznavoorian S, Murphy AN, Stetler-stevenson WG et al. Molecular aspects of tumor cell invasion and metastases[J]. Cancer, 1993;71(4):1368-1372.
[7] Khan A, Krishan M, Baker SP et al. Cathepsin B expression and its correlation with tumorassociated laminin and tumor progression in gastric cancer[J]. Arch Pathol Lab Med,1998;122(2):172-176.
[8] Orita H, Korenaga D, Maehara Y et al. Laminin distribution patterns are closely related to liver metastasis in gastric cancer[J], Cancer,1993;71(4):1201-1204.
收稿日期:2000-03-10; 修回日期:2000-06-05, 百拇医药
单位:第四军医大学西京医院检验科, 陕西 西安 710033
关键词:大肠癌;CA242,CA50;层粘连蛋白
第四军医大学学报001021 摘 要:目的 探讨CA242,CA50和层粘连蛋白(LN)水平与大肠癌转移及病理分期的关系. 方法 采用放射免疫分析法. 结果 38例大肠癌患者术前CA242,CA50和LN血清含量明显高于术后(P<0.01,P<0.05和P<0.05);27例有淋巴结转移者CA242,CA50及LN血清含量明显高于11例无淋巴结转移者(P<0.01,P<0.05和P<0.05);Dukes病理分期中,CA242血清含量Ⅳ期组(16例)高于Ⅲ期组(11例),Ⅲ期组高于Ⅰ+Ⅱ期组(11例),差异均非常显著(P<0.01);CA50血清含量,Ⅲ期组和Ⅳ期组均明显高于Ⅰ+Ⅱ期组(P<0.01);LN血清含量,Ⅲ期组高于Ⅰ+Ⅱ期组(P<0.05). 结论 CA242,CA50含量与大肠癌的病理分期和转移密切相关,对病情监测及预后有一定的临床价值.
, 百拇医药
中图号:R735.34 文献标识码:B
文章编号:1000-2790(2000)10-1238-03
Relation of serum levels of CA242, CA50 and LN with metastases and patholegic stages of large intestine cancer
YU Wen-Bin, CHEN Ming-Sheng, ZHANG Xiao-Ning, CHEN Yun-Chun
(Department of Clinical Laboratory, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China)
, 百拇医药
Abstract: AIM To investigate the relation of serum of levels CA242,CA50 and laminin (LN) with metastases and pathologic stages of large intestine cancer. METHODS Three tumor markers were detected by radioimmunoassay. RESULTS Serum levels of CA242,CA50 and LN of 38 patients with large intestine cancer before operations were apparently higher than those after operations (P<0.01, P<0.05 and P<0.05 respectively); the contents of CA242, CA50 and LN in sera of 27 patients with lymphold node metastases were apparently higher than those of 11 cases without the metastases (P<0.01,P<0.05 and P<0.05 respectively). The 38 patients were divided into three groups by Dukes pathologic stage. The contents of CA242 in sera of patients at stage Ⅳ(16 cases) were higher than those of patients at stage Ⅲ(11 cases), and the latter was higher than those of patients at Ⅰ+Ⅱ(11 cases). The differences among the three groups were all very significant(P<0.01). The contents of CA50 in sera of stage Ⅲ and Ⅳ groups were apparently higher than those of stage Ⅰ+Ⅱ group(P<0.01). The content of LN in sera of patients at stage Ⅲ group was higher than that of stage Ⅰ+Ⅱ group(P<0.05) CONCLUSION There was close correlation between contents of CA242, CA50 and LN in sera and pathological stages and metastases of large intestine cancer. These results may be of clinical benifit to the monitoring of patients' conditions.
, http://www.100md.com
Keywords:large intestine cancer; CA242; CA50; laminin
0 引言
肿瘤的诊断和预后判断是临床重要课题之一. 除影像学、内窥镜、活检等手段外,血清肿瘤标志物检测亦受到越来越广泛的重视. 就大肠癌肿瘤标志物而言,除传统的CEA之外,CA242,CA50和LN亦是近年来常用的标志物. 除诊断意义之外,这些标志物与转移、病理分期等与预后有关的临床意义如何,目前国内尚未见报道. 我们检测了38例大肠癌患者手术前后的血清CA242,CA50及LN含量,并对有无转移者之间,不同病理期之间上述标志物血清含量进行了比较,旨在探讨其临床预后方面的实用价值.
1 对象和方法
1.1 对象 38(男25,女13)例大肠癌患者为本院住院患者,年龄33~69(平均59.3)岁,全部经手术及病理组织确诊. 其中结肠癌28例,直肠癌10例. Dukes Ⅰ+Ⅱ期11例,Ⅲ期11例,Ⅳ期16例. 根据组织学类型分,腺癌26例,粘液腺癌6例,管状腺癌6例.
, 百拇医药
1.2 方法 大肠癌患者手术前及后10 d于清晨抽取静脉血、离心,取上清液,置于-20℃保存待测. 采用放射免疫法,CA242,CA50药盒由中国医学科学院肿瘤研究所北京佳科生物技术公司供给. LN由上海海军医学研究所提供,操作由专人按说明书进行.
统计学处理:数据以均数±标准差(±s)采用配对、非配对t检验和方差分析.
2 结果
2.1 手术前后血清CA242,CA50及LN水平 结果大肠癌患者38例术前血清CA242,CA50和LN水平分别(48±72)×103 U*L-1,(27±39)×103 U*L-1,(105±9) μg*L-1,术后分别为(26±41) ×103 U*L-1,(18±30) ×103 U*L-1,(96±11) μg*L-1,前者高于后者,差异显著(P<0.01,P<0.05和P<0.05).
, 百拇医药
2.2 血清CA242,CA50和LN水平与淋巴结转移的关系 大肠癌患者38例中27例淋巴结转移组血清CA242,CA50和LN水平分别(52±78) ×103 U*L-1,(38±48) ×103 U*L-1,(118±11) μg*L-1,淋巴结未转移组11例分别为(17±21)×103 U*L-1,(17±23) ×103 U*L-1,(103±7) μg*L-1,差别显著(P<0.01,P<0.05和P<0.05).
2.3 大肠癌Dukes分期与血清CA242,CA50及LN含量的关系 大肠癌患者Dukes病理分期,血清CA242的含量随病情发展而逐渐增高,相互之间差别非常显著. CA50含量亦有同样趋势,Ⅲ期和Ⅳ期与Ⅰ+Ⅱ期差别非常显著,但Ⅲ期和Ⅳ期间无显著差别,可能与病例数少有关. LN含量仅Ⅲ期显著高于与Ⅰ+Ⅱ期,而Ⅲ期与Ⅳ期以及Ⅳ期与Ⅰ+Ⅱ期间差别不显著,亦可能与病例数少有关(Tab 1).
, http://www.100md.com
表 1 大肠癌Dukes分期与血清CA242、CA50及LN含量
Tab 1 Relationship between Dukes stage of large intestine cancer and serum level CA242, CA50 and LN
Group
n
p(CA242)/
(U*L-1)
p(CA50)/
(U*L-1)
p(LN)/
, http://www.100md.com
(μg*L-1)
stageⅠ+Ⅱ
11
17±21
17±23
104± 7
stage Ⅲ
11
37±64b
36±38b
124±11a
, http://www.100md.com stage Ⅳ
16
65±88bd
43±60b
112± 9a
aP<0.05,bP<0.01 vs stageⅠ+Ⅱ,dP<0.01 vs stage Ⅲ.
3 讨论
CA是一类肿瘤相关抗原,其化学成分为高糖基化的大分子粘蛋白[1,2],在癌变过程中由肿瘤组织和癌细胞产生,分泌或释放于血中[3]. CA19-9,CA242和CA50与腺癌密切相关,对胰腺癌和结肠癌而言,是具有较高特异性和敏感性的新型肿瘤相关抗原[1,4,5]. 血清CA242含量在胰腺癌和晚期结直肠癌患者均明显升高[1],且对结直肠癌而言,CA242比CA50及CA19-9的敏感性更高. 我们的结果表明,38例大肠癌患者术前血清CA242含量明显高于术后(P<0.01),CA50含量亦明显高于术后(P<0.05). 38例患者中有27例发生淋巴结转移,其血清CA242和CA50含量明显高于11例未发生淋巴结转移者(P<0.01). 在Dukes病理分期中,Ⅳ期患者的血清CA242的含量明显高于Ⅲ期,而Ⅲ期又明显高于Ⅰ+Ⅱ组,各组间差异均非常显著(P<0.01). 血清CA50的含量,虽然Ⅳ期组与Ⅲ期组间无统计学差异,但它们均显著高于Ⅰ+Ⅱ期组(P<0.01). 以上结果说明,CA242和CA50与大肠癌的生物学行为密切相关,即随着病情的恶化和发生转移,其血清含量也越来越明显升高,与国外报道相一致[1],对临床上判断大肠癌的病情发展、预后估计和疗效观察都可能有较大的实际意义.
, http://www.100md.com
近年研究表明,LN的水平与肿瘤的病变,尤其是与肿瘤浸润及转移密切相关,引起学者们的高度关注[6]. 我们的结果为,大肠癌患者血清LN水平,手术前明显高于手术后,有转移者明显高于无转移者,Dukes病理分期Ⅲ期组明显高于Ⅰ+Ⅱ期组(P<0.05). 说明血清LN水平的变化亦与肿瘤生物学行为也密切相关,但其LN水平升高的确切机制尚不清楚[7]. 文献报道血清LN水平的增加与肿瘤细胞的浸润深度和分化程度有关[8].
综上所述,随着肿瘤的恶化、淋巴结转移的出现,血清CA242,CA50和LN的水平均显著升高. 手术切除肿瘤后,上述标志物水平又可不同程度地降低,表明血清CA242,CA50和LN是肿瘤细胞源性的,同时与肿瘤细胞的浸润、转移等生物学行为密切相关. 因此,我们认为,动态监测大肠癌患者手术前后及病程中CA242,CA50及LN的血清含量变化,对判断患者的病情、观察疗效及预后均有一定的参考意义.
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作者简介:于文彬(1944-),男(汉族),山东省潍坊市人. 1969年上海医科大学医学系毕业,检验科主任、教授,硕士研究生导师,陕西省检验学会副主任委员,发表论文30篇. Tel.(029)3375455
参考文献:
[1] Nilsson O, Johansson C, Glimelius B et al. Sensitivity and speciticity of CA242 in gastro-intestinal cancer: A comparison with CEA, CA50 and CA19-9[J]. Br J Cancer, 1992;65(3):215-221.
[2] Haglund C, Roberts PJ, Jalanko et al. Tumor markers CA19-9 and CA50 in digestive tract [J]. Scad J Gastroenterol, 1992;27(2):169-174.
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[3] Pallsson B, Masson P, Sandbarg A. The influence of cholestasis on CA50 and CA242 in pancreas cancer and benign biliopancreatice diseases[J]. Scad J Gastroenterol,1993;28 (11):981-985.
[4] Johansson C, Nilsson O, Beackstrom D et al. Novel epitopes on the CA50 carrying antigen: Chemical and immunochemical studies[J]. Tumor Biol, 1991;12(2):159-163.
[5] Kuuselap, Haglund C, Roberts PJ. Comparison of a new tumor marker CA242 with CA19 9, CA50 and carcinoembryonic antigenc(CEA) in digestive tract diseases[J]. Br J Cancer,1991;63(7):636-640.
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[6] Aznavoorian S, Murphy AN, Stetler-stevenson WG et al. Molecular aspects of tumor cell invasion and metastases[J]. Cancer, 1993;71(4):1368-1372.
[7] Khan A, Krishan M, Baker SP et al. Cathepsin B expression and its correlation with tumorassociated laminin and tumor progression in gastric cancer[J]. Arch Pathol Lab Med,1998;122(2):172-176.
[8] Orita H, Korenaga D, Maehara Y et al. Laminin distribution patterns are closely related to liver metastasis in gastric cancer[J], Cancer,1993;71(4):1201-1204.
收稿日期:2000-03-10; 修回日期:2000-06-05, 百拇医药