張占東 楊 巍 馬 飛 張永磊 馬二民 孔 燁 劉洪興 花亞偉
(鄭州大學附屬腫瘤醫(yī)院 河南省腫瘤醫(yī)院普外科,鄭州450008)
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熱休克蛋白27,60和90在胃癌中表達及其臨床價值
張占東楊巍馬飛張永磊馬二民①孔燁劉洪興花亞偉
(鄭州大學附屬腫瘤醫(yī)院 河南省腫瘤醫(yī)院普外科,鄭州450008)
[摘要]目的:探討HSP-27、-60和-90在胃癌中的表達及其臨床意義。 方法:采用免疫組織化學檢測66例胃癌組織中HSP-27、-60和-90的表達情況,并結(jié)合臨床病理特征、腫瘤增殖能力和患者生存期分析三種熱休克蛋白表達的臨床意義。 結(jié)果:HSP-27、-60和-90在胃癌組織中異常高表達。HSP-27表達與腫瘤大小(pT,P=0.026)、器官轉(zhuǎn)移(pM,P=0.046)及病理分期(P=0.041)相關,而HSP-27染色強度與淋巴腺狀態(tài)明顯相關(pN,P=0.042)。HSP-60表達與患者性別相關(P=0.011),而HSP-60染色強度與患者年齡(P=0.027)和腫瘤病理組織學分級(P=0.031)相關。HSP-90表達與本研究分析的臨床病理參數(shù)無相關性;但是,HSP-90染色強度與腫瘤大小存在著顯著關系(pT,P=0.020)。單因素分析表明HSP-90高表達與生存期更長顯著相關(P=0.033),多因素分析證實HSP-90高表達是胃癌獨立預后因素(P=0.026)。結(jié)論:HSP-27、-60和-90與某些臨床病理參數(shù)有關,這些參數(shù)對于胃腺癌患者的治療至關重要。胃腺癌患者HSP-90高表達是獨立預后指標。
[關鍵詞]熱休克蛋白27;熱休克蛋白60;熱休克蛋白90;胃癌
1對象與方法
1.1研究對象2007年1月~2008年12月于我院普外科受外科手術治療的66例原發(fā)性胃腺癌患者納入研究,其中男47例,女19例,年齡34~86歲,中位年齡56歲。患者術前經(jīng)胃鏡活檢病理、CT或MRI檢查確診,臨床和病理資料完整。接受胃癌根治術者31例,接受非根治性手術者35例。同時選擇胃癌組織癌旁正常胃黏膜組織作為對照。
1.2免疫組化檢測HSP-27、-60和-90的表達免疫組織化學SP染色按說明書進行,采用雙評分半定量積分法,對HSP-27、-60和-90的IHC結(jié)果進行分析,以出現(xiàn)棕黃色或棕色顆粒的細胞作為陽性細胞,HSP-27、-60和-90陽性部位在細胞漿。陽性強弱的標準判斷按光鏡下觀察陽性染色的細胞比例(5個高倍視野下的均數(shù)):(1)染色細胞數(shù)少于10%為陰性;(2)染色細胞數(shù)在10%~50%為陽性;(3)染色細胞數(shù)多于50%為強陽性。顯微攝像并用圖像分析儀進行光密度值檢測。
1.3統(tǒng)計學方法應用SPSS18.0統(tǒng)計軟件進行處理,采用方差ONE WAY ANOVA檢驗分析HSP-27、-60和-90蛋白表達水平與性別、年齡、癌細胞分化程度及臨床分期等各臨床病理參數(shù)之間的關系;對胃癌HSP-27、-60和-90表達進行分層比較。用單因素和多因素分析研究各因素對預后的影響。以P<0.05為差異有統(tǒng)計學意義。
2結(jié)果
2.1免疫組化結(jié)果HSP-27、-60和-90蛋白質(zhì)在胃癌中的表達明顯高于正常組織。HSP-27、-60和-90的典型免疫染色見圖1A~F。
2.2HSP-27、-60及-90表達的臨床意義HSP-27表達平均值為52%,而胃癌組織中HSP-27高表達率50%(33/66例)。HSP-27的免疫染色強度分為輕度20例(30%)、中度40例(61%)及重度6例(9%)。HSP-27表達與腫瘤大小(pT,P=0.026)、器官轉(zhuǎn)移(pM,P=0.046)及病理分期(P=0.041)相關。HSP-27染色強度與淋巴結(jié)陽性顯著相關(pN,P=0.042)(表1)。
HSP-60表達平均值為52%,而胃癌組織中HSP-60高表達率50%(36/66例)。HSP-60免疫染色強度分為輕度21例(32%)、中度32例(48%)及重度13例(20%)。HSP-60表達與患者性別(pT,P=0.011)相關。HSP-60染色強度與患者年齡(P=0.027)及腫瘤組織學分級(P=0.031)顯著相關(表2)。
HSP-90表達平均值為48%,而胃癌組織中HSP-90高表達率55%(33/66)。HSP-90免疫染色強度分為輕度30例(45%)、中度31例(47%)及重度5例(8%)。HSP-90表達與本研究所分析的臨床病理參數(shù)無相關性。HSP-90染色強度與腫瘤大小(pT,P=0.020)顯著相關(表3)。
2.3胃癌中HSP-27、-60及-90表達的相關性本研究采用斯皮爾曼等級相關系數(shù)評估HSP-27、-60和-90蛋白質(zhì)表達的相關性(表4),結(jié)果表明HSP-27表達與HSP-60和-90表達呈顯著正相關(分別為rs=0.47,P< 0.001和rs=0.32,P=0.008),HSP-60和HSP-90表達程度之間也呈顯著正相關(rs=0.25,P=0.044)(表4)。
2.4胃癌中HSP-27、-60及-90表達對患者預后的單、多因素分析COX 單因素分析顯示,分化程度(P=0.012)、TNM分期(P=0.001)和HSP90(P=0.005),多因素回歸分析提示HSP60和HSP90表達量、TNM分期可作為判斷胃腺癌預后的一個預測指標(P<0.05),見表 5。綜合各因素,HSP90過表達可能跟胃腺癌患者預后存在密切相關。
2.5胃癌中HSP-90表達的預后意義Kaplan-Meier生存曲線分析表達胃癌中HSP-27或-60表達與患者總體生存期無相關性(P=0.478,P=0.953),而單因素表明HSP-90高表達和低表達胃癌患者生存率存在明顯差異(P=0.005)(圖2A),多元回歸分析也證實HSP-90表達具有預后意義(P=0.028)。此外,多元回歸分析還發(fā)現(xiàn)淋巴結(jié)陰性胃癌患者(pN0)HSP-90高表達較長的生存時間顯著相關(P=0.042)(圖2B);高度及中度分化(G1/G2)胃癌患者HSP-90高表達與較長整體生存時間顯著相關(P=0.036)(圖2C)。未發(fā)生臟器轉(zhuǎn)移的胃癌患者(pM0)HSP-90高表達與較長生存時間顯著相關(P=0.027)(圖2D),多因素分析證實HSP-90高表達是胃癌患者獨立預后因素(P=0.032)。
圖1 HSP-27、-60和-90蛋白質(zhì)在正常組織和胃癌組織中的表達(×200)Fig.1 Proteins of HSP-27,-60 and -90 expression in normal tissue and gastric cancer tissue (×200)Note: The scale bar represents 100 μm.A.Normal tissue HSP-27; B.Normal tissue HSP-60; C.Normal tissue HSP-90; D.Gastric tissue HSP-27; E.Gastric tissue HSP-60;F.Gastric tissue HSP-90.
表166例胃腺癌患者HSP-27表達、染色強度和臨床病理特點
Tab.1HSP-27 protein expression,staining intensity and clinical pathology in 66 cases of gastric carcinoma patients
ClinicopathologiccharacteristicsHSP-27expression<52%(%)≥52%(%)P-valueHSP-27intensity+(%)++(%)+++(%)P-valueAllcases(n=66)33(50)33(50)20(30)40(61)6(9)Age(year)0.7960.070<6712(18)11(17)10(15)13(20)0(0)≥6721(32)22(33)10(15)27(41)6(9)Gender0.4150.892Male22(33)25(38)15(23)28(43)4(6)Female11(17)8(12)5(7)12(18)2(3)Histologictype0.4600.628Intestinal15(23)15(23)8(12)20(30)2(3)Diffuse18(27)18(27)12(18)20(31)4(6)Histologicalgrade0.5660.266Welldifferentiated1(2)2(3)1(2)2(3)0(0)Moderatelydifferentiated17(25)13(20)7(10)22(34)1(2)Poorlydifferentiated15(23)18(27)12(18)16(24)5(7)pTclassification0.0260.661T17(11)2(3)5(7)4(6)0(0)T210(15)12(18)6(9)14(21)2(3)T316(24)13(20)8(12)18(28)3(4)T40(0)6(9)1(2)4(6)1(2)pNclassification0.0780.042N013(20)11(17)6(9)16(24)2(3)N116(24)22(33)10(15)24(37)4(6)N24(6)0(0)4(6)0(0)0(0)pMclassification0.0460.593M032(48)27(41)17(26)37(57)5(7)M11(2)6(9)3(4)3(4)1(2)pStage0.0410.162Ⅰ14(21)6(9)8(12)12(18)0(0)Ⅱ7(11)10(15)2(3)11(17)4(6)Ⅲ11(17)19(29)7(11)13(20)1(2)Ⅳ1(2)7(10)3(4)4(6)1(2)Ki-67proteinstatement0.2690.865<75%26(39)22(33)14(21)30(45)4(6)≥75%7(11)11(17)6(9)10(16)2(3)
表266例胃腺癌患者HSP-60表達、染色強度和臨床病理特點
Tab.2HSP-60 protein expression,staining intensity and clinical pathology in 66 cases of gastric carcinoma patients
ClinicopathologiccharacteristicsHSP-60expression<52%(%)≥52%(%)P-valueHSP-60intensity+(%)++(%)+++(%)P-valueAllcases(n=66)30(45)36(55)21(32)32(48)13(20)Age0.1870.027<6713(20)10(15)10(15)6(9)7(11)≥6717(25)26(40)11(17)26(39)6(9)Gender0.0110.436Male26(40)21(32)17(26)22(33)8(12)Female4(5)15(23)4(6)10(15)5(8)Histologictype0.1910.851Intestinal11(16)19(29)10(15)15(22)5(8)Diffuse19(29)17(26)11(17)17(26)8(12)Histologicalgrade0.0530.031Welldifferentiated3(4)0(0)3(4)0(0)0(0)Moderatelydifferentiated10(15)20(30)7(11)19(28)4(6)Poorlydifferentiated17(26)16(25)11(17)13(20)9(14)pTclassification0.2390.298T15(7)4(5)4(6)5(8)0(0)T28(12)14(22)8(12)10(15)4(6)T316(24)13(21)9(14)14(21)6(10)T41(2)5(7)0(0)3(4)3(4)pNclassification0.2500.213N014(21)10(15)10(15)11(17)3(4)N114(21)24(37)9(14)19(28)10(16)N22(3)2(3)2(3)2(3)0(0)pMclassification0.8840.230M027(41)32(49)20(30)29(45)10(17)M13(4)4(6)1(2)3(3)3(3)pStage0.1140.649Ⅰ10(15)10(15)8(12)9(14)3(4)Ⅱ4(5)13(21)5(7)10(15)2(3)Ⅲ13(21)8(12)7(11)9(14)5(9)Ⅳ3(4)5(7)1(2)4(5)3(4)Ki-67proteinstatement0.0770.913<75%25(38)23(34)15(23)24(36)9(14)≥75%5(7)13(21)6(9)8(12)4(6)
表466例胃腺癌患者的HSP-27、-60和-90蛋白質(zhì)表達程度之間的斯皮爾曼等級相關性
Tab.4Spearman rank correlation between HSP-27,-60 and -90 proteins expression level in 66 cases of patients with gastric adenocarcinoma
n=66HSP-27HSP-60HSP-90HSP-27-rs=0.47,P<0.001rs=0.032,P=0.008HSP-60rs=0.47,P<0.001-rs=0.025,P=0.044HSP-90rs=0.32,P=0.008rs=0.25,P=0.044
表366例胃腺癌患者的HSP-90表達、染色強度和臨床病理特點
Tab.3HSP-90 protein expression,staining intensity and clinical pathology in 66 cases of gastric carcinoma patients
ClinicopathologiccharacteristicsHSP-90expression<48%(%)≥48%(%)P-valueHSP-90intensity+(%)++(%)+++(%)P-valueAllcases(n=66)33(50)33(50)0.19630(45)31(47)5(8)0.629Age<6714(21)9(14)12(18)10(15)1(2)≥6719(29)24(36)18(27)21(32)4(6)Gender0.7860.276Male23(35)24(36)22(33)23(35)2(3)Female10(15)9(14)8(12)8(12)3(5)Histologictype0.6210.070Intestinal14(21)16(24)13(20)17(25)0(0)Diffuse19(29)17(26)17(25)14(22)5(8)Histologicalgrade0.8340.661Welldifferentiated2(3)1(2)2(3)1(2)0(0)Moderatelydifferentiated15(22)15(24)14(21)15(22)1(2)Poorlydifferentiated17(25)15(24)14(21)15(23)4(6)pTclassification0.2400.020T17(11)2(3)8(12)1(2)0(0)T29(14)13(20)7(10)14(22)1(2)T315(22)14(21)13(20)14(21)1(2)T42(3)4(6)2(3)2(3)2(4)pNclassification0.8730.985N013(20)11(17)11(17)11(17)2(3)N118(27)20(30)17(25)18(27)3(5)N22(3)2(3)2(3)2(3)0(0)pMclassification0.6890.530M029(44)30(46)26(40)29(44)4(6)M14(6)3(4)4(5)2(3)1(2)pStage0.2500.114Ⅰ12(18)8(12)10(15)10(15)0(0)Ⅱ5(8)12(18)7(10)7(11)3(5)Ⅲ12(18)9(14)9(14)12(18)0(0)Ⅳ4(6)4(6)4(6)2(3)2(3)Ki-67proteinstatement1.0000.260<75%24(36)24(36)23(35)20(30)5(8)≥75%9(14)9(14)7(10)11(17)0(0)
表5COX 比例風險模型
Tab.5COX proportional hazards model
ClinicopathologiccharacteristicsPCOXsingle-factoranalysisSEPCOXmultipe-factoranalysisRR(95%CI)Age(year)<670.3810.149(0.221)≥67GenderMale0.3760.208(0.250)FemaleTNMclassificationⅠⅡ0.0010.912(0.218)0.0012.157(1.342-3.658)ⅢⅣ
(轉(zhuǎn)下頁)
(續(xù)表5)
HistologicalgradeWelldifferentiated0.0120.531(0.214)0.0121.514(0.918-2.304)ModeratelydifferentiatedPoorlydifferentiatedHistologictypeIntestinal0.0830.273(0.286)DiffuseKi-67proteinstatement<75%0.3860.212(0.225)≥75%HSP-27Lowexpression0.1040.502(0.211)0.1611.436(0.866-2.382)HighexpressionHSP-60Lowexpression0.0770.493(0.207)0.1811.422(0.824-2.441)HighexpressionHSP-90Lowexpression0.0050.641(0.221)0.0281.586(1.029-2.543)Highexpression
圖2 66例胃腺癌患者HSP-90表達對胃癌患者生存期的影響Fig.2 Influence on cumulative survial of patients with 66 cases of gastic cancer patients with HSP90 expressionNote: A.All cases;B.pN0 cases;C.G1/G2 cases;D.pM0 cases.
3討論
據(jù)報道,HSP在多種人類腫瘤細胞中過表達,本研究進一步證實了HSP-27、-60和-90蛋白質(zhì)表達在胃癌發(fā)展中的臨床意義。本研究證實經(jīng)測試HSP-27、-60和-90在胃癌組織中陽性表達。Takano等和Kapranos等研究表明HSP-27的發(fā)生率分別為52.4% (22/42)和62.7% (54/86)[1,2]。另外,HSP-70和HSP-40在胃癌中陽性染色百分率分別為67.9% (55/81)和22.2% (18/81)[3,4]。
本研究發(fā)現(xiàn)胃癌組織中HSP-27、-60和-90的陽性表達率分別52%、52%和48%。蛋白組分析報告顯示10例胃癌組織中,HSP相關的過表達樣本非常低,其中包括HSP-60、HSP-70及HSP-90家族的一名成員,含TCP1伴侶蛋白(CCT)。作者表示,該過表達可能是由于惡性轉(zhuǎn)化期間細胞的脅迫應答和自我保護機制[5]。然而,HSP在癌癥中變?yōu)檫^表達的確切分子機制尚待澄清??傮w來說,迄今為止的可用數(shù)據(jù)指出HSP可能與腫瘤進展相關的基因變化存在關系[6]。癌變時可能出現(xiàn)p53突變蛋白等腫瘤蛋白,這些突變及構(gòu)象改變的蛋白質(zhì)可能引出HSP應答[7]。研究發(fā)現(xiàn),HSP-27表達程度及HSP-60和-90蛋白質(zhì)的表達程度之間存在著顯著正相關[8](斯皮爾曼等級相關)(表4),并得出HSP-60和HSP-90的表達之間存在著較低的相關度的結(jié)論(斯皮爾曼等級相關)(表4)。然而,在關于食管癌的其他研究中,并沒有對HSP-60和HSP-90相關性的報告[9]。
當前研究發(fā)現(xiàn),HSP-27表達及免疫染色強度與患者治療時的重要臨床病理特征存在相關性[10]。該結(jié)果與之前的一項證據(jù)相一致,即報告稱在66例人類胃癌樣本中,HSP-27表達與淋巴轉(zhuǎn)移存在相關性[11]。一致的是,在我們的研究中也發(fā)現(xiàn)HSP-27強度及免疫染色表達和淋巴腺狀態(tài)之間分別存在著顯著及邊界相關性。另外,HSP-27表達與器官轉(zhuǎn)移的出現(xiàn)、腫瘤大小和病理分期顯著相關。然而,HSP-27表達和染色強度與患者生存不相關。關于這一點,Kapranos等通過單變量分析證明了在66例胃癌樣本中HSP-27與較短的整體生存相關;然而,這種關系在多變量分析中并沒有保留。此外,Takano等人對于胃癌處于可切除Ⅳ期患者的42例組織樣本進行了多變量分析,結(jié)果顯示pN因素、血管侵入、HSP-27過表達和p53及HSP-27過表達指數(shù)體現(xiàn)出了預后影響。然而,在多變量分析中僅Lauren分型作為獨立變量染色。此外,我們發(fā)現(xiàn)與腸型相比,彌漫型胃癌患者的較短生存時間的特征更加明顯;但這種差異并沒有達到統(tǒng)計顯著性(P=0.083)。Maehara等和Isomoto等也都未發(fā)現(xiàn)HSP表達和患者生存之間的任何顯著相關性[12,13]。事實上,組織病理分化與HSP-60的表達顯著相關,然而HSP-60和HSP-27表達對于任何推測預后及生存的因素都沒有影響[14,15]。Wang等人進行的另一項研究表明,HSP-70和gp96的表達及胃癌進展之間都存在著顯著相關[16]。
HSP-60表達與患者性別顯著相關,而與Ki-67標記指數(shù)反映的腫瘤病理組織學分級和增殖能力僅有邊界相關性。事實上,女性患者體內(nèi)發(fā)現(xiàn)的HSP-60表達要高于男性患者,而不良分化腫瘤中HSP-60的表達頻率則高于高度和中度分化腫瘤。另外,HSP-60的染色強度與患者年齡及腫瘤病理組織學分級顯著相關。因此,Cappello等人表示,在晚期大腸癌及淋巴轉(zhuǎn)移中,HSP-60表達與腫瘤等級相關[17]。據(jù)之前報道,HSP-60在前列腺癌和結(jié)直腸癌中都存在過表達現(xiàn)象[18,19]。此外,支氣管癌癥中HSP-60可能是一個新的生物標志的理論也得到了支持[20,21]。另一方面,盡管HSP-60表達與食管癌患者的任何臨床病理參數(shù)不相關,但它卻與凋亡指數(shù)和患者預后存在顯著相關性[22,23]。相反,我們沒有發(fā)現(xiàn)HSP-60表達或染色強度與胃癌患者的預后存在任何顯著相關性。據(jù)我們所知,在當前研究之前,并沒有出現(xiàn)過關于HSP-60表達的臨床意義與臨床病理參數(shù)之間關系的可用數(shù)據(jù)。
根據(jù)我們的結(jié)果,HSP-90與檢查的臨床病理特征無關。然而,HSP-90免疫染色強度與腫瘤大小顯著相關,與病理組織學類型邊界相關??傮w來說,已經(jīng)在幾種類型癌癥中對于HSP-90表達值進行了檢查;但目前為止大部分研究都沒有發(fā)現(xiàn)其與臨床病理特征的顯著相關性[24-26]。關于胃癌,Zuo等人報告了HSP-90α與淋巴轉(zhuǎn)移的顯著相關性[27]。另外,人類胃癌組織中,尤其是在不良分化的胃癌組織中,還顯示了增強的HSP-90β表達[28]。體外研究同樣顯示在MDR型胃癌細胞系SGC7901/VCR 中,HSP-90β表達要比其在親代細胞系SGC7901大[29]。
據(jù)我們所知,目前尚無關于胃癌中HSP-90表達預后值的可用證據(jù)。在這一方面,當前研究為檢查胃腺癌患者預后方面HSP-90表達的臨床意義的第一份報告。單因素生存分析中,較高的HSP-90蛋白質(zhì)表達與較長的整體生存時間相關。另外,單因素生存分析顯示,HSP-90蛋白質(zhì)表達對于胃腺癌患者是一個重要并獨立的預后因素。在淋巴結(jié)陰性的不同臨床亞組中,高度和中度分化的及器官轉(zhuǎn)移陰性腫瘤和HSP-90高蛋白質(zhì)表達與預后良好相關。此外,HSP-90表達和免疫染色強度顯示出在腸型中與整體生存時間相關的趨勢,但這個趨勢并不存在于彌漫型胃癌病例中。彌漫型和腸型胃癌患者之間對立的HSP-90過表達預后值可以歸因于腫瘤微環(huán)境和每個腫瘤病理組織學類型的個體細胞特點所產(chǎn)生的不同信號。這樣明顯的不同能夠觸發(fā)腫瘤樣細胞來上調(diào)或下調(diào)與腫瘤病理組織學類型相關的HSP-90信號。對于HSP-90表達的預后值也已在幾種癌癥中進行過檢查。與我們結(jié)果一致的是,在子宮內(nèi)膜癌中,HSP-90表達與預后良好顯著相關[30,31]。相反,癌癥組織中HSP-90表達及針對HSP-90抗體的出現(xiàn)已經(jīng)與乳腺癌中的不良預后聯(lián)系起來[32,33],另外發(fā)現(xiàn)在卵巢癌和口腔癌中其并沒有預后價值[34,35]。HSP-90表達與提高的生存相關的現(xiàn)有數(shù)據(jù)值得引起我們的特別注意,因為它能夠暗示HSP-90等陪伴的缺失可能會導致更加侵襲性的表現(xiàn)型,進而導致不良預后或者對于治療的耐受性。在這個背景之下發(fā)現(xiàn),阻斷的HSP-90破壞胃癌細胞中多個促血管新生信號通路并抑制體外移植瘤增長[36,37]。因此,胃癌隱匿部位為帶有HSP-90抑制劑的治療吸引分子靶標,這能夠提高抗腫瘤治療方案的療效[36]。
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[收稿2015-07-30修回2015-06-08]
(編輯張曉舟)
doi:10.3969/j.issn.1000-484X.2016.07.025
作者簡介:張占東(1979年-),男,碩士,主治醫(yī)師,主要從事胃腸道腫瘤的基礎與臨床研究,E-mail:zhangzhandong287@163.com。
通訊作者及指導教師:花亞偉(1965年-),男,碩士生導師,主要從事胃腸道腫瘤治療方面的研究。
中圖分類號R735.2
文獻標志碼A
文章編號1000-484X(2016)07-1042-08
Expression of heat shock protein 27,60 and 90 in gastric cancer and its clinical value
ZHANG Zhan-Dong,YANG Wei,MA Fei,ZHANG Yong-Lei,MA Er-Min,KONG Ye,LIU Hong-Xing,HUA Ya-Wei.
Cancer Hospital of Zhengzhou University (Henan Cancer Hospital),Zhengzhou 450008,China
[Abstract]Objective:To investigate the expression of HSP-27,-60 and -90 in gastric cancer and its clinical significance.Methods: 66 cases of gastric carcinoma was detected by immunohistochemistry HSP-27,60 and 90 of the expression and clinical significance of combined with clinical and pathological characteristics,tumor cell proliferation and survival analysis of three kinds of heat shock protein expression.Results: HSP-27,-60 and -90 were highly expressed in gastric cancer tissues.HSP-27 expression and tumor size (pT,P=0.026),organ metastasis (pM,P=0.046) and pathological staging (P=0.041),HSP-27 staining intensity and lymph node status were significantly correlated (pN,P=0.042).HSP-60 expression was associated with gender (P=0.011),and HSP-60 staining intensity was associated with age (P=0.027) and tumor grade (P=0.031).There was no correlation between HSP-90 expression and the clinical pathological parameters of this study; however,the intensity of HSP-90 staining was significantly correlated with tumor size (P=0.020,pT).Single factor analysis showed that HSP-90 was significantly associated with longer survival (P=0.033).Multivariate analysis demonstrated that HSP-90 was highly expressed as an independent prognostic factor for gastric cancer(P=0.026).Conclusion: the HSP-27,-60 and -90 and some clinical pathological parameters.These parameters is very important for the treatment of patients with gastric cancer.The high expression of HSP-90 in patients with gastric cancer were independent prognostic indicators.
[Key words]Heat schock protein(HSP)-27;HSP-60;HSP-90;Grastric cancer
①鄭州人民醫(yī)院腫瘤外科,鄭州450000。