共查询到19条相似文献,搜索用时 93 毫秒
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目的 检测胶质瘤DNA倍体特性,DI、SPF及PI值,探讨它们与胶质瘤级别的关系及临床意义。方法 46例胶质瘤石蜡标本按级别分为Ⅰ级组(15例),Ⅱ级组(13例),Ⅲ-Ⅳ级组(18例),10例正常脑组织作为对照组,用流式细胞技术(FCM)检测其DNA含量,DI、SPF及PI值。结果 对照组均为二倍体;肿瘤组DNA异倍体率为47.8%;随着胶质瘤级别的增高,其DNA异位体率,DI值,SPF值,PI值均增高。结论 DNA异倍体是恶性胶质瘤特征性标志;DI值,SPF值,PI值与胶质瘤的级别呈正相关。 相似文献
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非霍奇金淋巴瘤细胞DNA含量测定的临床意义 总被引:2,自引:0,他引:2
研究非霍奇金淋巴瘤(NHL)中DNA含量和S期细胞比例(SPF)在非霍奇金淋巴瘤诊断和治疗中的意义。方法:35例NHL患者(NHL组)和10例淋巴结反应性增生患者(对照组)的新鲜淋巴组织,应用流式细胞技术检测其中DNA含量,并计算SPF。结果:35例NHL中异倍体出现率为37.10%(13/35)。10例反应性增生淋巴结组织中无异倍体出现。NHL组SPF均值为22.39%,对照组为9.88%(P<0.01)。NHL患者中低度恶性、中度恶性及高度恶性的SPF均值分别为9.10%、23.48%及29.16%。化疗有效者(完全缓解加部分缓解)SPF为25.63%,无效者为14.23%(P<0.05)。结果表明NHL中SPF的表达有随着恶性程度的增高而增加的趋势。肿瘤表现异倍体或高SPF者近期疗效好。结论:异倍体或高SPF有助于NHL的诊断并与疗效有关。 相似文献
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目的 :检测胶质瘤DNA倍性、SPF及EGFR表达 ,探讨其与胶质瘤病理级别的关系及它们之间相关性。方法 :4 6例手术切除的脑胶质瘤作为实验组 ;10例正常脑组织作为对照组。采用免疫组化SABC (Strept Avidin BionComplex)法检测EGFR蛋白表达 ;采用流式细胞技术 (Flow Cytometry ,FCM )检测DNA含量及SPF。结果 :对照组均为二倍体且无EGFR表达 ;胶质瘤Ⅰ级组、Ⅱ级组、Ⅲ~Ⅳ级组DNA异倍体率分别为 13 3%、4 6 2 %、77 8% ,Ⅰ级组与Ⅲ~Ⅳ级组、Ⅱ级组与Ⅲ~Ⅳ级组比较差异有显著性 (P <0 0 5 ) ;EGFR阳性率分别为 2 0 0 %、6 9 2 %和 83 3% ,Ⅰ级组与Ⅱ级组、Ⅰ级组与Ⅲ~Ⅳ级组比较差异有显著性 (P <0 0 5 ) ;SPF值随胶质瘤级别增高而升高 ,各组比较差异有显著性 (P <0 0 5 ) ;EGFR阳性胶质瘤DNA发生率及SPF值均明显高于EGFR阴性胶质瘤 (P <0 0 5 )。结论 :DNA异倍体的发生、SPF值、EGFR阳性率与胶质瘤恶性级别正相关。EGFR表达与DNA异倍体及SPF有相关性 相似文献
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目的探讨乳腺癌DNA含量与病理组织学参数、激素受体之间的相关性,进一步分析其临床病理学意义。方法在病理组织学观察的基础上,运用流式细胞术检测65例乳腺癌、15例乳腺良性病变的DNA含量;同时用免疫组织化学方法检测乳腺癌组织中雌、孕激素受体(ER、PR)的表达。结果DNA含量在乳腺癌与乳腺良性病变中明显不同,存在显著性差异;S期指数(S phase fraction,SPF)与肿瘤大小、组织学分级均存在显著相关性。结论肿瘤DNA非整倍体的出现,可能可以作为判断良、恶性肿瘤的参考指标;与临床病理学参数比较,增殖指数SPF在判断肿瘤的生物学行为方面更敏感,更有价值。 相似文献
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目的 探讨乳腺癌DNA倍体与ER的相关性和生物学行为。方法 本文应用流式细胞术(FCM)检测了30例乳腺癌的细胞核DNA含量,同时用免疫组化PAP法测定了肿瘤细胞中雌激素受体(ER)的表达,以探讨其二者的相关性和生物学行为。结果 乳腺癌DNA含量63.3%(19/30)为异倍体,37.7%(11/30)为二倍体或近二倍体。DNA含量与ER呈负相关(P<0.01)。异倍体在ER阳性者达78.57%(11/14)。结论 DNA含量与临床分期相关性显著,即与肿瘤大小,分化程度及预后相关密切。也提示ER表达DNA含量有一定相关性。DNA含量是反应肿瘤生物学行为较正确、客观的生物学指标。 相似文献
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目的:检测胶质瘤DNA倍性、SPF及EGFR表达,探讨其与胶质瘤病理级别的关系及它们之间相关性。方法:46例手术切除的脑胶质瘤作为实验组;10例正常脑组织作为对照组。采用免疫组化SABC(Strept-Avidin-Bion Complex)法检测EGFR蛋白表达;采用流式细胞技术(Flow-Cytometry,FCM)检测DNA含量及SPF。结果:对照组均为二倍体且无EGFR表达;胶质瘤I级组、Ⅱ级组、Ⅲ-Ⅳ级组DNA异倍体率分别为13.3%、46.2%、77.8%,I级组与Ⅲ-Ⅳ级组、Ⅱ级组与Ⅲ-Ⅳ级组比较差异有显著性(P<0.05);EGFR阳性率分别为20.0%、69.2%和83.3%,I级组与Ⅱ级组、I级组与Ⅲ-Ⅳ级组比较差异有显著性(P<0.05);SPF值随胶质瘤级别增高而升高,各组比较差异有显著性(P<0.05);EGFR阳性胶质瘤DNA发生率及SPF值均明显高于EGFR阴性胶质瘤(P<0.05)。结论:DNA异倍体的发生、SPF值、EGFR阳性率与胶质瘤恶性级别正相关。EGFR表达与DNA异倍体及SPF有相关性。 相似文献
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DNA含量和S期细胞比值与食管癌生物学特性的关系 总被引:2,自引:0,他引:2
目的:研究食管癌患者不同组织细胞的DNA含量、S期细胞比值(SPF)及倍体状态与临床病理特性的关系。方法:应用流式细胞仪检测食管癌患者新鲜手术标本食管癌组织、癌旁组织、正常食管粘膜及淋巴结中DNA含量及S期细胞比值。结果:食管癌组织的异倍体发生率明显高于癌旁组织、正常食管粘膜和淋巴结(P<0.05)。二倍体组织之间的细胞DI差异无显著性(P>0.05)。异倍体与二倍体细胞同一组织之间、异倍体组癌组织为癌旁组织、癌组织与正常组织、癌旁组织与淋巴结、正常组织与淋巴结之间DI差异显著(P<0.05)。在二倍体组中癌组织与正常组织、癌组织与淋巴结之间SPE之间差异显著(P<0.05)。DNA倍体与患者性别、肿瘤部位及大体病理类型等无关(P>0.05),而与肿瘤分化程度、浸润深度及淋巴结状况有关(P<0.05)。结论:食管癌DNA倍体及SPF均与肿瘤的增殖活性有关,有助于对食管癌生物学行为的了解和患者预后的判断。 相似文献
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研究DNA含量及SPF值与胃癌临床病理指标及PCNA表达的关系。方法:应用流式细胞术测定72例胃癌新鲜组织及31例良性胃粘膜病变新鲜组织的DNA含量SPF值,并采用免疫组织化学方法检测66例胃癌石蜡切片的PCNALI,并结合临床资料分析其临床意义。结果胃癌的DI(1.21)及异倍体检出率(44.44%),明显高于良性胃粘现变组(分别为1.05和9.68%)吕患者中异倍体组的SPF值(22.74%) 相似文献
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表遗传学修饰的DNA甲基化在胶质瘤的发生发展中起重要作用。大量肿瘤抑制基因、细胞周期调控基因、DNA损伤修复基因、肿瘤侵袭相关基因等启动子区域CpG岛甲基化,与胶质瘤的发生发展密切相关。不同基因的甲基化发生频率与胶质瘤的组织类型和病理分级有关。某些基因的DNA甲基化可以为胶质瘤的早期诊断和预后评价提供分子生物学标记物,同时由于DNA甲基化具有可逆转性,也可为胶质瘤的基因治疗提供新的治疗靶点。 相似文献
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肝细胞癌DNA干系倍体分析及其临床意义 总被引:1,自引:0,他引:1
目的:测量与分析肝细胞癌DNA干系倍体及其临床意义。方法:使用TIGER细胞图像分析仪测量 4 5例肝细胞癌组织 4 μm、10 μm切片上DNA干系倍体值。4 μm组织切片测量肝细胞癌细胞核DNA的光密度,10 μm组织切片测量单个完整肝细胞癌细胞核的体积,经TIGER细胞图像分析仪计算获得以单个完整肝细胞癌细胞核体积为单位的DNA总量(以体积积分光密度表述),以同一切片内正常淋巴细胞作为内对照,计算其DNA干系倍体值。结果:⑴无 1例DNA干系倍体为二倍体;DNA干系倍体值在 2~ 5范围者 11例;在 5~ 8范围者 2 8例;大于 8者 6例。⑵DNA干系倍体与瘤体大小、有无淋巴结转移、组织学分级、术后生存率等有相关性。结论:DNA干系倍体能较准确反映肝细胞癌的生物学特性,为认识肝细胞癌的病理学特征以及判断预后提供了有价值的客观依据。 相似文献
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T. Vincent Shankey Peter S. Rabinovitch Bruce Bagwell Kenneth D. Bauer Christopher Cox Ricardo E. Duque David W. Hedley Brian H. Mayall Leon Wheeless 《Breast cancer research and treatment》1993,28(1):61-68
Summary These consensual guidelines and recommendations address the potential utility of DNA cytometry in characterizing human malignancies. They are provided to inform laboratory personnel, pathologists, and clinicians about DNA cytometry. For individual patients, use of DNA cytometry, selection of specific techniques, and interpretation and utilization of results remain the responsibility of the attending physicians.First published in Cytometry 14:472–477, 1993, ©Wiley-Liss, a division of John Wiley and Sons, Inc., reprinted with permission. 相似文献
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目的 研究局部晚期宫颈鳞癌流式细胞术分析结果(DNA倍体、SPF和PI)与放疗预后的关系,探讨它们在预测宫颈癌放疗效果中的价值。方法 68例ⅢB期宫颈鳞癌病人在放疗前钳取宫颈癌组织,制备成单细胞悬液,采用流式细胞术检测癌细胞DNA倍体、S期比例(SPF)及增殖指数(PI),分析他们及其他临床参数与患者根治性放疗后疾病复发和生存的关系。结果 在68例标本中,异倍体检出率为47.1%(32/68),SPF和PI值为分别为(7.49±2.91)和(12.89±3.75);在随访期间,全组宫颈癌患者复发率为44.1%(30/68);二倍体组和异倍体组的5年无复发生存率分别为52.7%和35.2%(P〈0.(15),高SPF组和低SPF组5年无复发生存率分别为25.3%和56.6%(P〈0.05),高PI组和低PI组5年无复发生存率分别为37.5%和49.3%(P〈0.05);经多因素分析显示,肿瘤大小和SPF是影响宫颈癌患者无复发生存的独立预后因素。结论 通过流式细胞术检测宫颈癌组织SPF可以预测局部晚期宫颈鳞癌放射治疗后的预后。 相似文献
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Studies on the cell kinetics of the human gallbladder are difficult because of epithelial degeneration by bile. Using the epithelial isolation technique, however, we were able to determine the degree of degeneration and to examine the cell kinetics of gallbladder lesions in freshly resected surgical specimens. Normal and neoplastic epithelial were isolated nonenzymatically from freshly resected gallbladder. The nuclear DNA content and S-phase fraction were estimated in 110 patients with gallbladder lesions by flow cytometry (FCM). Normal tissues and all lesions except carcinomas were diploid. The S-phase fraction of gallstone cases was significantly higher (1.47 ± 0.70%; mean ±SD) than normal (0.79 ± 0.39%) (P <0.0006). All gallbladder carcinomas were multiploid, and their S-phase fraction was 11.63 ± 3.65%. Cell renewal of normal gallbladder is low. In the gallstone cases, the S-phase fraction was increased, possibly correlated with carcinogenesis. © 1996 Wiley-Liss, Inc. 相似文献
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H Haneda H Miyamoto H Isobe S Abe H Akita A Ishikuro Y Kawakami K Okayasu T Endo K Inoue 《Journal of surgical oncology》1992,49(3):182-188
To assess the accuracy of the bronchoscopic DNA content analysis, samples of non-small-cell lung carcinomas (NSCLC) were investigated by means of flow cytometry. Samples were dissociated using the detergent Triton X-100. In 58 NSCLC cases, 39 (67%) had DNA aneuploid tumors. We compared the DNA indices of bronchoscopic brushing samples with 21 corresponding surgical samples. In 16 (76%) cases, DNA ploidy of both bronchoscopic and surgical samples were in concordance. In 3 (14%) cases, both bronchoscopic and surgical sample showed DNA aneuploidy, but the number of the DNA aneuploid stem cell lines was different. The cause of these differences was ascribed to the intratumor DNA heterogeneity. In 2 (10%) cases, the bronchoscopic sample showed DNA diploidy, but the surgical sample showed DNA aneuploidy. In these cases, tumor cells obtained by bronchoscopic brushing were so few that the small DNA aneuploid peak was undetectable in the DNA histogram. But the tumor DNA ploidy was evaluated correctly in 90% of 21 cases using bronchoscopic samples. Consequently, despite some drawbacks, the DNA ploidy diagnosis using bronchoscopic samples in this relatively small study, was almost as reliable as surgical samples. 相似文献
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目的 探索DNA倍体类型、细胞周期在前列腺上皮内瘤中诊断和鉴别诊断的价值。方法 应用细胞图像分析技术检测前列腺上皮内瘤(PIN)细胞的平均DNA含量、DNA平均倍体值及细胞周期的各个时相的变化。同时与良性前列腺增生症(BPH)、前列腺癌(PCa)比较。结果 PIN组异倍体率为70%,前列腺上皮内瘤DNA平均倍体值、G0/G1期细胞比率、S期细胞比率介于良性前列腺增生症和前列腺癌之间。结论 DNA异倍体、较高S期细胞比率是前列腺上皮内瘤重要生物学特性。对于前列腺上皮内瘤的鉴别诊断具有一定参考价值。 相似文献
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Lise Pedersen Jørgen K. Larsen Ib Jarle Christensen Anne Lykkesfeldt Susanne Holck Torben Schiødt 《Breast cancer research and treatment》1994,29(3):297-306
Summary In a population of 110 primary breast cancers with medullary features, registered in the Danish Breast Cancer Cooperative Group (DBCG) from 1977-82, we have determined ploidy and S-phase fraction (SF) by flow cytometry (FCM) on paraffin embedded tumour tissue. The distribution of DNA ploidy is not different from the distribution described for breast cancers in general. No difference is found between the subgroups of medullary and non-medullary cancer when using a new simplified histopathological definition of medullary carcinoma of the breast, recently proposed by us. When using the definition proposed by Ridolfiet al. in 1977, we find significantly more tumours with aneuploidy and high SF in the groups of typical medullary carcinoma (TMC) and atypical medullary carcinoma (AMC) than in the small group of non-medullary carcinoma (NMC), which seems a paradox, as patients with NMC have the worst prognosis. However, the number of patients in the NMC group is very small, and the percentage of aneuploid tumours is very low. In 84 protocolled patients we found no statistically prognostic importance of ploidy or SF, either in the whole group assessed or when stratifying for the histopathological subgroups. However, a prognostic influence of SF can be traced for the non-medullary cancers, according to the new definition, but not for the medullary cancers of the breast. The result emphasizes the impression of MC as being biologically different from other histological types of breast cancer. 相似文献