肺癌患者血浆中血小板GMP－140的测定

采用ＧＭＰ－１４０单抗ＳＺ－５１采用酶联免疫吸附试验检测了７４例肺癌患者ＧＭＰ－１４０含量并与４０例健康人作了对照，结果发现肺癌患者血浆ＧＭＰ－１４０均值高于正常人（Ｐ＜０．０１），尤其在肺癌伴转移患者更为明显，且亦高于肺癌未转移患者（Ｐ＜０．０５），为进一步探讨血小板在肿瘤增殖与转移中的作用及临床治疗提供了参考依据。     

酸枣仁油对艾氏腹水癌小鼠生存期和体重的影响

3次重复实验研究了酸枣仁油对艾氏腹水癌小鼠体重和生存期的作用。本研究实验条件稳定,诱癌率为100％。酸枣仁油以1.40m1/kg和0.35m1/kg剂量灌胃能明显延长荷瘤小鼠的生存天数,生命延长率大于50％,明显抑制荷瘤小鼠生命后期的体重增长,说明酸枣仁油对艾氏腹水癌小鼠有明显抗肿瘤作用。     

抗癌基因P~(53)蛋白在肺癌组织中的异常表达及意义

应用抗P53单克隆抗体DO－1，采用免疫组化ABC法对50例肺癌组织中P53蛋白的表达进行检测并取25例远癌肺组织作为对照。结果显示肺癌组织中P53蛋白的表达明显高于对照组；P53蛋白的表达与肺癌的分级、分期无关而与淋巴结转移及预后显著相关。提示P53蛋白的异常表达与肿瘤的恶性转化有关，P53蛋白可作为肺癌预后估计的指标。     

真核表达人乳头瘤病毒16型L_1蛋白在检测宫颈癌患者相应抗体的应用

用真核表达HPV16L1蛋白为抗原，酶联免疫吸附测定64例宫颈癌患者血清和阴道分泌物的相应抗体，并用型特异性聚合酶键反应检测宫颈癌组织HPV16L1基因。结果：宫颈癌组血清HPV16L1抗体阳性年64．1％，对照组20．8％；宫颈癌组阴道分泌物HPV16L1抗体阳性率64.1％，对照组25％；宫颈癌组HPV16L1基因检出率为42．2％，对照组10％。有显著差异（P＜0．01）。结论：高危型HPV感染，宫颈癌患者有明显免疫反应，全身和局部无明显差异，真核表达HPV16L1蛋白可用于宫颈癌患者的抗体测定。     

甲状腺肿瘤蛋白质组学研究进展

蛋白质组学是在后基因组时代出现的一个新的研究领域,肿瘤蛋白质组学是其重要分支。本文从甲状腺肿瘤特异性分子标志物以及甲状腺癌治疗的分子靶点等几个方面,详细介绍了近几年来甲状腺肿瘤蛋白质组学的研究现状。     

胃癌患者血清NO、细胞因子和红细胞免疫功能的测定及其意义

目的　研究胃癌发病的免疫学机制。方法　应用形态学方法测定胃癌患者RBC C3bRR、RBC ICR及NTER ;用ELISA法测定血清TNF α、IL 6和IL 8含量 ;用生化方法测定血清NO含量。结果　胃癌患者血清NO含量 ,RBC C3bRR和NTER明显降低 (P均 <0 .0 5) ,术后较术前明显升高 (P均 <0 .0 5) ,但仍低于对照组 (P均 <0 .0 5)。血清TNF α、IL 6、IL 8含量及RBC ICR明显增高 (P均 <0 .0 5) ,术后血清IL 6、IL 8含量及RBC ICR较术前明显降低(P均 <0 .0 5) ,但仍高于对照组 (P均 <0 .0 5)。胃癌患者TNF α、IL 6、IL 8间呈正相关 ,RBC C3bRR与血清IL 6、IL 8含量呈负相关。结论　多项免疫指标的联合检测对揭示胃癌的发病机理、疗效观察和预后判断均有重要的临床意义     

血清和支气管肺泡灌洗液中癌胚抗原及透明质酸测定对肺癌的诊断意义

应用放免法测定了７４例肺癌和７６例良性肺病患者血清（Ｓ）和支气管肺泡灌洗液（ＢＡＬＦ）中癌胚抗原（ＣＥＡ）及透明质酸（ＨＡ），同时测定了５８例健康人Ｓ－ＨＡ。结果显示：肺癌患者Ｓ－ＣＥＡ极显著高于良性肺病患者（Ｐ＜０．００１），肺癌患者Ｓ－ＨＡ极显著高于健康人和良性肺病患者（Ｐ均＜０．００１）。肺癌患侧ＢＡＬＦ－ＣＥＡ和ＢＡＬＦ－ＨＡ极显著高于肺癌健侧、良性肺病患侧和健侧（Ｐ＜０．００１或Ｐ＜０．００２）。根据各项指标在肺癌时的阳性率，选用Ｓ－ＣＥＡ、ＢＡＬＦ－ＣＥＡ和ＢＡＬＦ－ＨＡ作为诊断指标，当３项阳性时对肺癌诊断的敏感性为５３％，特异性为９７％、阳性预示值为９５％，用性预示值为７６％，准确性为７２％。     

THE STUDY OF MICROSATELLITES ALTERATION IN DIAGNOSES OF BLADDER CANCER

Objective To investigate the possibility of microsatellite alteration （MA） in diagnosis of bladder cancer of Chinese people, and find the better panel which will be used in clinic. Methods A total of 6 and 10 microsatellite markers were chosen, PCR-SSLP silver staining assay was performed in 31 and 32 bladder cancers tissue, exfoliate cells in urine and 10, 15 non-bladder cancers exfoliate cells in urine, respectively. Results MA （＋） was found in 28 out of 31, 30 out of 32 bladder cancers, and the sensitivity was 90. 3%, 93.7% respectively. The MA of urine sediment of 25 non-bladder cancers was negative, and the specificity was 100%. The cytology was carried out among 19 out of 31, 20 out of 32 bladder cancers at the same time, 2 cases （10.3%） and 3 cases （15%） were found cancer positive, and the sensitivity is significantly lower than that by the analysis of MA in exfoliated cells. Conclusion MA was not associated with grade and stage of the bladder cancer. MA assay is a sensitive and effective method for the early detection of bladder cancer and post-operation surveillance.     

siRNA AGAINST SURVIVIN SUPPRESSES THE PROLIFERATION OF PANCREATIC CANCER CELL PC-2 AND INDUCES ITS APOPTOSIS

Survivinis a member of the inhibitor of apop-tosis family,whichinhibits cell apoptosis and regu-lates cell division.Survivin is expressed in embry-onic tissues as well as in the majority of humancancers,but is not expressed in most nor mal adulttissues.The highly cancer-specific expression ofSurvivin,coupled withits i mportance in inhibitingcell apoptosis and in regulating cell division,makesit a useful diagnostic marker and ideal target forcancer treat ment[1].RNAi is a process of post trans…     

THE CLINICAL SIGNIFICANCE OF PERCENT FREE PSA IN DIFFERENTIATING PROSTATE CANCER AND BENIGN PROSTATE HYPERPLASIA

rostatecancer (Pca)isoneofthecommonestmalignanttumorsofmaleinEuropeandAmerica .ThemorbidityofPcainourcountryismuchlowerthaninothercountries,butrecentlyitwasincreasedtotwofold[1] .Althoughtheprostatespecificantigen(PSA)isthemostusefultumormarkeravailableforthediagnosisofPca ,nevertheless ,lackssufficientsensitivityandspecificity .Peoplenow putforwardtheconceptofpercentfreePSA (fPSA)andhasbe comethenewdirectionofinvestigation .However ,therestillhavesomeproblemunclearatpresent,es peciallyt…