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支气管肺泡灌洗液中3种肿瘤标志物的含量检测及意义           ★★★ 【字体:
支气管肺泡灌洗液中3种肿瘤标志物的含量检测及意义
作者:佚名    论文来源:本站原创    点击数:    更新时间:2008-10-4    
作者:黄芳,王香玲,荫斌霞,展淑琴
【关键词】  肺肿瘤
    Clinical significance of determination of 3 tumor markers in bronchoalveolar lavage fluid
  【Abstract】 AIM: To investigate the clinical value of 3 tumor markers  [carcinoembryonic antigen (CEA), cytokeratin19fragments (CYFRA211) and tissue polypeptide specific antigen (TPS)] in bronchoalveolar lavage fluid (BALF) in patients with lung cancer. METHODS:  The levels of CEA, CYFRA211 and TPS in serum and BALF were measured in 62 patients with lung cancer and 36 patients with benign lung disease by electrochemiluminescence (Elecys2010) and ELISA respectively. RESULTS:  The levels of the 3 tumor markers measured in BALF were much higher in lung cancer group than that in benign lung disease group (P<0.05) and they were higher in patients in stage III and IV than those in stage I and II. The tumor markers increased to different degrees among the patients in various pathological classifications. It was also found that the levels of these tumor markers were higher and more sensitive in BALF than those in serum, especially in TPS. CONCLUSION:  The measurement of the tumor markers in BALF is of more significant value than the measurement in serum, which helps the early diagnosis, pathological classification and prognosis evaluation of lung cancer.
  【Keywords】 lung neoplasms; bronchoalveolar lavage fluid; tumor markers, biological
  【摘要】 目的: 研究支气管肺泡灌洗液(BALF)中3种肿瘤标志物癌胚抗原(CEA)、细胞角蛋白片段211(CYFRA211) 、组织多肽特异性抗原(TPS)对肺癌的临床诊断意义. 方法: 采用电化学发光免疫分析仪法(Elecys2010)、酶联免疫吸附法分别检测62例肺癌患者、36例肺部良性病变患者血清及BALF中CEA和CYFRA 211,TPS的含量. 结果: 肺癌患者BALF中3种肿瘤标志物的含量明显高于肺部良性病变患者(P<0.05),且随着TNM临床分期升高,肿瘤标志物的含量也明显升高. 在不同病理类型的肺癌中,3种肺癌肿瘤标志物升高的程度均有所不同. BALF中肿瘤标志物的含量与同期血清中的含量相比,出现更早且浓度更高,尤以TPS升高最为明显. 结论: BALF中3种肺癌标志物的检测在肺癌的早期诊断、病理类型的推断及预后判断方面都有一定的意义,其临床价值优于血清.
  【关键词】 肺肿瘤;支气管肺泡灌洗液;肿瘤标记,生物学
 
  0引言
  血清肿瘤标志物在肺癌中的应用已作过大量研究,表明肺癌患者血清中癌胚抗原(carcinoembryonic antigen, CEA)、细胞角蛋白片段211(CYFRA211)、 组织多肽特异性抗原(tissue polypeptide specific antigen, TPS)均较肺部良性病变患者和正常对照有所升高. 但相关的临床意义,各家报道不一[1,2]. 随着经纤维支气管肺泡灌洗术(BAL)的广泛应用,纤支镜对肺癌的诊断除了常规活检、刷检外,支气管肺泡灌洗液(BALF)中肿瘤标志物的检测亦可协助临床提高对肺癌的检测率. 我们拟测定血清及BALF中CEA,CYFRA211,TPS,的含量,探讨其对肺癌的临床诊断价值.
  1对象和方法
  1.1对象
  选择西安交通大学第二附属医院呼吸科2001/2003住院患者62(男55,女7)例,年龄50~83(60.7±9.4)岁,全部经组织学或细胞学证实为肺癌患者. 其中鳞癌24例,腺癌20例,小细胞癌18例. 按照1997年UICC和ATCC肺癌TNM分期标准分期: Ⅰ~Ⅱ期21例,Ⅲ期25例,Ⅳ期16例. 肺部良性病变组36(男29,女7)例,年龄47~73(61.0±7.7)岁,其中慢性支气管炎急性期13例,支气管扩张伴感染8例,急性支气管炎9例,支气管肺炎6例. 正常对照35(男30,女5)例,年龄50~67(59.3±4.6)岁,为我院门诊体检正常者. 3组受检对象的年龄、性别做均衡性检验,无显著性差异. 因肺癌患者男性多于女性,故所选对照男性多与女性.
 
  1.2方法
                                       
  1.2.1采集及储存① 血清: 所有受检者均采清晨空腹静脉血3 mL,分离后的血清于70℃冰箱保存待测. ② BALF: 按常规支气管镜检查术,将纤维支气管镜远端插入病变所在段支气管,而良性病变均选用镜下所见炎症最重部位的段或亚段做灌洗. 先经活检孔注入20 g/L利多卡因1~2 mL做灌洗的局部麻醉. 然后从分检孔分次注入37℃无菌生理盐水30~50 mL,停留在6~7.3 kPa,吸引回抽适量的BALF,1500 r/min离心10 min,取上清液检测肿瘤标志物,细胞成分涂片作病理学检查,置-70℃低温冰箱待检.
 
industry workers as a reference group [J]. Anticancer Res, 2000;20:5035-5040.
  [5]  Sun SS, Hsieh JF, Tsai SC, et al. Tissue polypeptide specific antigen and carcinoembryonic antigen for early prediction of recurrence in Lung adenocarcinoma [J]. Am J Clin Oncol, 2000;23:605-608.
  [6]  Ho YJ, Hsieh JF, Tasi SC, et al. Tissue polypeptide specific antigen and squamous cell carcinoma antigen for early prediction of recurrence in lung squamous cell carcinoma [J]. Lung, 2000;178:75-80.
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  [8]  Muraki M, Tohda Y, et al. Assessment of serum Cyfra211 in lung cancer [J]. Cancer, 1996;77:1274-1277.
  [9]  陈锐,胡华成,胡筠珠,等. 支气管肺泡灌洗液中3种肿瘤标志物检测的临床价值[J]. 苏州大学学报(医学版)2003;23(3):336-338.
  Chen R, Hu HC, Hu YZ, et al. Clinical significance of determination of 3 tumor markers in bronchoalveolar lavage fluid [J]. Suzhou Univ J Med Sci, 2003;23(3):336-338.
  [10] Pujol JL, Boher JM, Grenier J, et al. Cyfra211,neuron specific enolase and prognosis of nonsmall cell lung cancer: Propective study in 621 patients [J]. Lung Cancer, 2001;31:221-231
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