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      CA724、CA242及AFP在肝癌TACE治療前后的表達(dá)變化及臨床意義

      2015-11-24 05:54:08梁育飛石亮孫寧寧李春英
      天津醫(yī)藥 2015年10期
      關(guān)鍵詞:標(biāo)志物原發(fā)性肝癌

      梁育飛,石亮,孫寧寧,李春英

      CA724、CA242及AFP在肝癌TACE治療前后的表達(dá)變化及臨床意義

      梁育飛1,石亮2,孫寧寧1,李春英1

      目的觀察血清CA724、CA242及甲胎蛋白(AFP)在原發(fā)性肝癌患者肝動(dòng)脈化療栓塞術(shù)(TACE)治療前后的變化及臨床意義。方法選取原發(fā)性肝癌患者(原發(fā)性肝癌組)45例及健康對(duì)照者(健康對(duì)照組)40例,應(yīng)用電化學(xué)發(fā)光免疫分析法檢測(cè)健康對(duì)照組及肝癌患者在TACE術(shù)前2 d、術(shù)后1周和1個(gè)月時(shí)血清CA724、CA242及AFP,分析3個(gè)指標(biāo)的相關(guān)性及與臨床資料間的關(guān)系,觀察肝癌患者AFP<400 μg/L與AFP≥400 μg/L組中血清CA724、CA242在手術(shù)前后的變化。結(jié)果原發(fā)性肝癌組術(shù)前血清CA724、CA242及AFP含量均高于健康對(duì)照組(P<0.05),血清CA724、AFP陽性率高于健康對(duì)照組(P<0.01)。原發(fā)性肝癌組AFP在TACE治療后1周及1個(gè)月均較治療前2 d降低(P<0.01),CA724在治療后1個(gè)月低于治療前(P<0.05),而CA242差異無統(tǒng)計(jì)學(xué)意義(P>0.05)。原發(fā)性肝癌患者血清CA724及AFP的表達(dá)與腫瘤大小有關(guān)(P<0.05)。術(shù)后1個(gè)月,AFP<400 μg/L與AFP≥400 μg/L組CA724均較術(shù)前下降(P<0.05)。CA724與AFP的表達(dá)呈正相關(guān)(r=0.754,P<0.05)。結(jié)論血清CA724可作為協(xié)助評(píng)價(jià)肝癌TACE術(shù)后療效的腫瘤標(biāo)志物之一。

      肝腫瘤;腫瘤,多原發(fā)性;甲胎蛋白類;CA724;CA242;肝動(dòng)脈化療栓塞術(shù)

      原發(fā)性肝癌是常見的消化系統(tǒng)惡性腫瘤,發(fā)現(xiàn)時(shí)患者多已處于中晚期。經(jīng)肝動(dòng)脈化療栓塞術(shù)(TACE)具有靶向性好、創(chuàng)傷小、可重復(fù)、易接受等優(yōu)點(diǎn),已成為非手術(shù)治療的首選方式[1]。CA724是近年來篩查惡性腫瘤的一種新的非特異性腫瘤標(biāo)志物。CA242是一種黏蛋白類癌胚抗原性質(zhì)的腫瘤標(biāo)

      志物,臨床上常用于消化道惡性腫瘤的研究。有關(guān)TACE治療肝癌后腫瘤標(biāo)志物的變化報(bào)道較少見。本研究旨在通過檢測(cè)肝癌患者TACE手術(shù)前后血清CA724、CA242及甲胎蛋白(AFP)含量的變化,探討其對(duì)TACE治療、療效判斷的指導(dǎo)意義。

      1 對(duì)象與方法

      1.1 研究對(duì)象選取2013年6月—2014年6月于本院確診的原發(fā)性肝癌患者(原發(fā)性肝癌組)45例,男29例,女16例,年齡23~75歲,平均年齡(44.2±8.5)歲,均符合2011年《原發(fā)性肝癌診療規(guī)范》[2],均否認(rèn)心臟病史,且入院前未接受過任何治療。另選擇來我院健康體檢并且各項(xiàng)指標(biāo)均正常者(健康對(duì)照組)40例,男26例,女14例,年齡18~71歲,平均年齡(41.9±9.2)歲。2組年齡(t=1.710)、性別(χ2=0.001)差異無統(tǒng)計(jì)學(xué)意義(P>0.05),具有可比性。

      1.2 方法原發(fā)性肝癌組參照文獻(xiàn)[3]方法,進(jìn)行TACE術(shù)。根據(jù)肝功能情況、腫瘤大小、腫瘤血供及患者情況選擇用藥劑量?;煼桨福?-氟尿嘧啶(5-Fu)750~1 000 mg、絲裂霉素(MMC)6~12 mg、吡柔比星40~60 mg,栓塞劑為超液化碘化油10~30 mL。4周重復(fù)1次,術(shù)后護(hù)肝、護(hù)胃及對(duì)癥支持治療[4]。原發(fā)性肝癌組患者分別于TACE術(shù)前2 d、術(shù)后1周、術(shù)后1個(gè)月空腹抽取肘正中靜脈血4 mL;健康對(duì)照組于肝癌TACE術(shù)前2 d空腹抽取靜脈血4 mL,2組標(biāo)本均以3 000 r/min離心5 min,分離血清備檢。

      1.3 觀察指標(biāo)采用德國羅氏公司E170電化學(xué)發(fā)光分析儀檢測(cè)2組血清CA724、CA242和AFP,試劑均為羅氏公司的標(biāo)準(zhǔn)試劑盒。閾值:CA724>6.9 U/mL為陽性,CA242>20 U/mL為陽性,AFP>13.6 μg/L為陽性[5-6]。觀察2組術(shù)前2 d血清CA724、CA242及AFP水平,原發(fā)性肝癌組治療前后血清CA724、CA242及AFP水平的動(dòng)態(tài)變化,分析3個(gè)指標(biāo)與臨床一般資料間的關(guān)系。參照文獻(xiàn)[7]以400 μg/L作為劃分標(biāo)準(zhǔn),觀察AFP<400 μg/L與AFP≥400 μg/L組中血清CA724、CA242在TACE手術(shù)前后的變化,了解不同水平AFP與血清CA724、CA242的關(guān)系;并對(duì)血清AFP水平與CA724和CA242進(jìn)行相關(guān)性分析。

      1.4 統(tǒng)計(jì)學(xué)方法采用SPSS 13.0統(tǒng)計(jì)軟件處理數(shù)據(jù)。符合正態(tài)分布的計(jì)量資料采用表示,2組間均數(shù)比較采用獨(dú)立樣本t檢驗(yàn),不同時(shí)點(diǎn)均數(shù)比較采用單因素方差分析,各時(shí)點(diǎn)間多重比較采用SNK-q檢驗(yàn);計(jì)數(shù)資料采用χ2檢驗(yàn),相關(guān)性分析應(yīng)用Pearson相關(guān)分析法。以P<0.05為差異有統(tǒng)計(jì)學(xué)意義。

      2 結(jié)果

      2.12 組術(shù)前2 d血清CA724、CA242及AFP水平比較原發(fā)性肝癌組CA724、CA242及AFP均高于健康對(duì)照組(P<0.01),見表1。原發(fā)性肝癌組術(shù)前血清CA724(29/45 vs 0/40)、AFP(35/45 vs 0/40)陽性率均高于健康對(duì)照組(χ2分別為39.127和52.889,均P<0.01)。血清CA242陽性率差異無統(tǒng)計(jì)學(xué)意義(4/45 vs 0/40,χ2=2.012,P>0.05)。

      Tab.1The serum levels of CA724,CA242 and AFP in two groups表1 2組術(shù)前2 d血清CA724、CA242及AFP水平比較

      Tab.1The serum levels of CA724,CA242 and AFP in two groups表1 2組術(shù)前2 d血清CA724、CA242及AFP水平比較

      **P<0.01

      組別原發(fā)性肝癌組健康對(duì)照組t n 45 40 CA724(U/mL)23.39±13.53 2.58±0.43 9.718**CA242(U/mL)11.29±3.18 2.35±0.26 17.706**AFP(μg/L)793.15±100.74 3.41±0.70 49.547**

      2.2 原發(fā)性肝癌組治療前后血清CA724、CA242及AFP水平的動(dòng)態(tài)變化血清CA724和AFP含量均呈降低的變化趨勢(shì)(P<0.05),其中CA724治療后1個(gè)月與術(shù)前2 d比較,AFP在治療后1周及1個(gè)月較治療前均降低(P<0.05)。血清CA242水平差異無統(tǒng)計(jì)學(xué)意義(P>0.05)。見表2。

      Tab.2Changes of serum levels of CA724,CA724 and AFP before and after TACE treatment in primary hepatic carcinoma group表2 原發(fā)性肝癌組TACE治療前后血清CA724、CA724及AFP水平變化

      Tab.2Changes of serum levels of CA724,CA724 and AFP before and after TACE treatment in primary hepatic carcinoma group表2 原發(fā)性肝癌組TACE治療前后血清CA724、CA724及AFP水平變化

      *P<0.05,**P<0.01;a與(I)組比較,b與(II)組比較,均P<0.05

      時(shí)間術(shù)前2 d(Ⅰ)術(shù)后1周(Ⅱ)術(shù)后1個(gè)月(Ⅲ)F CA724(U/mL)23.39±13.53 19.45±11.35 15.98±9.68a4.578*CA242(U/mL)11.29±3.18 12.34±3.17 10.78±2.95 2.943 AFP(μg/L)793.15±100.74 641.90±99.73a546.68±85.96ab75.878**

      2.3 血清CA724、CA242及AFP的表達(dá)與肝癌臨床資料之間的關(guān)系CA724及AFP的表達(dá)與腫瘤直徑有關(guān)(P<0.05),與性別、年齡及乙肝表面抗原(HBsAg)無關(guān)(P>0.05),CA242與性別、年齡、腫瘤直徑及HbsAg均無關(guān)(P>0.05),見表3。

      2.4 血清AFP與CA724、CA242的關(guān)系A(chǔ)FP<400 μg/L與AFP≥400 μg/L組血清CA724在術(shù)后1個(gè)月均較術(shù)前下降(P<0.05),但CA242各時(shí)點(diǎn)間差異無統(tǒng)計(jì)學(xué)意義(P>0.05),見表4。

      2.5 原發(fā)性肝癌組血清AFP與CA724、CA242的相關(guān)性分析原發(fā)性肝癌患者血清AFP與CA724呈正相關(guān)(r=0.754,P<0.05),與CA242無相關(guān)性(r= 0.111,P>0.05)。

      3 討論

      腫瘤標(biāo)志物是包括基因異常表達(dá)產(chǎn)物在內(nèi)的反映腫瘤存在的一些生物活性物質(zhì),檢測(cè)血清中腫瘤標(biāo)志物對(duì)于腫瘤的診斷、判斷分期及預(yù)后起重要作

      用。已經(jīng)證實(shí),血清CA724、CA242、AFP等腫瘤標(biāo)志物在胃癌[8]、肝癌[9]等多種腫瘤中會(huì)出現(xiàn)不同程度的升高,而肝癌TACE干預(yù)勢(shì)必對(duì)這些腫瘤標(biāo)志物產(chǎn)生一定影響。

      CA724是由cc49和B72.3兩株單抗識(shí)別的一種黏蛋白樣高分子量糖蛋白,在正常人和良性患者血清中含量很低,是一個(gè)非特異性腫瘤標(biāo)志物,其異常升高可對(duì)腫瘤的組織發(fā)生、細(xì)胞分化、細(xì)胞功能的診斷提供科學(xué)依據(jù)。趙惠柳等[10]研究認(rèn)為,原發(fā)性肝癌患者CA724的含量高于正常組,且陽性率為35.4%。本研究結(jié)果顯示,原發(fā)性肝癌組血清CA724含量在TACE術(shù)前較對(duì)照組升高,陽性率為64.44%;在TACE治療后,CA724含量呈逐漸降低趨勢(shì),術(shù)后1個(gè)月低于術(shù)前2 d,考慮原因可能為化療栓塞引起腫瘤缺血缺氧所致。Marrelli等[11]發(fā)現(xiàn)血清CA724的含量與腫瘤的大小有關(guān),經(jīng)手術(shù)等治療后其含量可以下降。本研究結(jié)果顯示,血清CA724水平在腫瘤直徑≥5 cm組高于<5 cm組,與文獻(xiàn)報(bào)道相一致。另外,AFP<400 μg/L與AFP≥400 μg/L組中血清CA724在術(shù)后1個(gè)月較術(shù)前2 d均下降,相關(guān)性分析顯示血清AFP與CA724呈正相關(guān),提示AFP水平變化與CA724水平具有關(guān)聯(lián)性。

      Tab.3Comparison of expressions of serum CA724,CA242 and AFP with different clinical characteristics in primary hepatic carcinoma group表3 血清CA724、CA242及AFP的表達(dá)與肝癌臨床資料之間的關(guān)系

      Tab.3Comparison of expressions of serum CA724,CA242 and AFP with different clinical characteristics in primary hepatic carcinoma group表3 血清CA724、CA242及AFP的表達(dá)與肝癌臨床資料之間的關(guān)系

      *P<0.05,**P<0.01

      AFP(μg/L)n CA724(U/mL)CA242(U/mL)臨床資料性別男女t年齡29 16 24.57±13.46 21.73±11.81 0.840 11.52±3.43 11.24±2.98 0.319 802.37±106.92 791.16±98.45 0.417 798.46±102.58 787.84±95.33 0.271<50歲≥50歲t腫瘤直徑≥5 cm<5 cm t HBsAg陽性陰性t 18 27 22.58±10.31 25.82±12.44 1.643 11.15±2.13 11.61±3.56 1.054 804.72±103.37 792.52±97.42 0.615 34 11 31.47±15.16 19.35±9.33 2.631*11.16±2.17 11.78±3.68 0.921 935.47±126.59 567.26±89.23 9.563**38 7 25.23±12.16 20.52±10.37 1.015 11.49±2.47 10.83±2.34 0.692

      Tab.4Changes of serum CA724 and CA242 levels in two AFP level groups表4 不同AFP水平組中血清CA724、CA242的變化

      Tab.4Changes of serum CA724 and CA242 levels in two AFP level groups表4 不同AFP水平組中血清CA724、CA242的變化

      *P<0.05;a與(I)組比較,P<0.05;AFP<400 μg/L組6例,AFP≥400 μg/L組39例

      組別術(shù)后1周(Ⅱ)CA724術(shù)前2 d(Ⅰ)AFP<400 μg/L AFP≥400 μg/L組別AFP<400 μg/L AFP≥400 μg/L F 17.58±9.45 21.24±10.57 20.46±10.68 25.74±12.50 CA242術(shù)前2 d(Ⅰ)11.30±3.19 11.27±3.26術(shù)后1個(gè)月(Ⅲ)13.76±7.53a16.89±9.11a術(shù)后1周(Ⅱ)12.37±3.20 12.31±3.22術(shù)后1個(gè)月(Ⅲ)10.86±2.96 10.69±2.99 3.255*3.350*F 1.539 1.343

      AFP是目前診斷原發(fā)性肝癌最常用的腫瘤標(biāo)志物,在評(píng)估療效等方面具有較高的實(shí)用價(jià)值[12]。有研究認(rèn)為及時(shí)檢測(cè)患者體內(nèi)AFP水平可以準(zhǔn)確掌握患者肝臟的病情變化[13]。賈戶亮等[14]發(fā)現(xiàn)原發(fā)性肝癌直徑≥5 cm患者的AFP水平是直徑<5 cm患者的6倍以上。本研究結(jié)果顯示,血清AFP水平在腫瘤直徑≥5 cm組高于<5 cm組,與文獻(xiàn)一致,提示AFP水平與腫瘤大小有一定相關(guān)性。原發(fā)性肝癌組血清AFP在TACE術(shù)后1周和1個(gè)月時(shí)均低于TACE術(shù)前2 d,考慮原因可能是肝癌TACE后持續(xù)釋放藥物,使得腫瘤缺血壞死,阻擋新增生的肝細(xì)胞合成釋放AFP,使得進(jìn)入血液循環(huán)的AFP含量逐漸降低。

      CA242是一種與腫瘤相關(guān)的唾液酸化的糖蛋白抗原決定簇,對(duì)消化道腫瘤(如肝癌、胰腺癌)有一定診斷靈敏性和特異性[15]。本研究結(jié)果顯示,血清CA242在肝癌中陽性率僅8.89%(4/45),在TACE治療前后,其濃度差異無統(tǒng)計(jì)學(xué)意義,提示TACE治療可能對(duì)于腫瘤產(chǎn)生CA242影響不大。從CA242變化趨勢(shì)看,術(shù)后1個(gè)月較術(shù)前2 d和術(shù)后1周仍在逐漸降低,需增加樣本進(jìn)一步長期監(jiān)測(cè),具體機(jī)制需進(jìn)一步研究。

      綜上所述,肝癌的TACE干預(yù)治療對(duì)腫瘤的生物學(xué)特性產(chǎn)生影響,進(jìn)而導(dǎo)致血清腫瘤標(biāo)志物水平的變化,聯(lián)合選擇多個(gè)有臨床價(jià)值的腫瘤標(biāo)志物對(duì)監(jiān)測(cè)消化道腫瘤的療效具有重要臨床意義。

      [1]Tanaka M,Ando E,Simose S,et al.Radiofrequency ablation com?bined with transarterial chemoembolization for intermediate hepato?cellular carcinoma[J].Hepatol Res,2014,44(2):194-200.doi: 10.1111/hepr.12100.

      [2]Ministry of health of the people′s republic of china.Diagnostic and treatment about practicesPrimary liver cancer(2011)[J].Chinese

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      (2014-12-01收稿 2015-04-01修回)

      (本文編輯 陸榮展)

      Analysis of the dynamic changes and clinic significance of serum CA724,CA242 and AFP levels before and after TACE treatment of primary hepatic carcinoma

      LIANG Yufei1,SHI Liang2,SUN Ningning1,LI Chunying1
      1 Department of Gastroenterology,Cangzhou Central Hospital,Cangzhou 061001,China;2 Department of General Surgery,Cangzhou Central Hospital

      ObjectiveTo investigate the change of serum CA724,CA242 and AFP levels before and after transcatheter artery chemoembolization(TACE)treatment of primary hepatic carcinoma(PHC)patients as well as its clinic significance. MethodsPatients of PHC(n=45)and healthy adults(n=40)were enrolled.Serum samples were collected from each healthy people and PHC patients 2 days before TACE,l week and 1 month after TACE.Electrochemiluminescence Immunoassay(ECLI)was used to determine serum CA724,CA242 and AFP levels,and correlations among three indexes as well as their relationships with clinical data were also analysed.,Change of serum CA724 and CA242 levels before and after TACE were compared in AFP<400 μg/L group and AFP≥400 μg/L group.ResultsSerum levels of CA724,CA242 and AFP in PHC group were significantly higher than that in healthy control groups before TACE therapy(P<0.05).Positive rates of serum CA724 and AFP were higher in PHC group(P<0.01)than that in healthy control group.AFP decreased significantly at both 1 week and 1 month upon TACE treatment compared with that at before teratment(P<0.01).CA724 was significantly lower at one month after treatment than that at before treatment(P<0.05).But there was no significant difference in CA242 before and after treatment(P>0.05).CA724 and AFP expressions are associated with tumor size(P<0.05).After one month of therapy,serum CA724 level was obviously decreased in both AFP<400 μg/L and AFP≥400 μg/L groups.Before and after TACE therapy,there was a positive correlation between the expression of AFP and CA724(r=0.754,P<0.05).ConclusionSerum CA724 can be used as one of the tumor markers to assist the evaluation of curative effect of TACE on PHC.

      liver neoplasms;neoplasms,multiple primary;alpha-fetoproteins;CA724;CA242;TACE

      R735.7

      A

      10.11958/j.issn.0253-9896.2015.10.026

      1河北省滄州市中心醫(yī)院消化內(nèi)科(郵編061001),2普外科

      梁育飛(1980),男,主治醫(yī)師,碩士,主要從事消化系統(tǒng)疾病研究

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