人疱疹病毒6型对EB病毒复制影响的研究

目的探讨人疱疹病毒６型（ＨＨＶ６）对ＥＢ病毒（ＥＢＶ）复制的影响。方法用ＨＨＶ６感染Ｒａｊｉ细胞和ＥＢＶ转化的淋巴细胞（ＬＣＬ），并用抗ＨＨＶ６单克隆抗体（ＭＡｂ）作免疫萤光分析（ＩＦＡ）确定ＨＨＶ６已感染这二种细胞。用抗ＥＢＶ人血清作ＩＦＡ观察ＥＢＶ抗原表达。结果ＨＨＶ６感染Ｒａｊｉ细胞后可见细胞病变效应（ＣＰＥ）；而ＬＣＬ未见ＣＰＥ。这二种细胞株用抗ＨＨＶ６的ＭＡｂ作ＩＦＡ均检出ＨＨＶ６，而对照组未检出ＨＨＶ６；用抗ＥＢＶ人血清作ＩＦＡ，感染ＨＨＶ６的二种细胞中均检出ＥＢＶ抗原。结论ＨＨＶ６促进了ＥＢＶ抗原表达，并提示在鼻咽癌的发生中ＨＨＶ６和ＥＢＶ可能起协同致病作用。     

γ—干扰素对喉癌细胞株HEP—2增殖活性的影响

用单克隆抗体Ｋｉ－６７（抗ＰＣＮＡ），以链霉菌素－生物素技术（ＬＳＡＢ）检测喉癌细胞株ＨＥＰ－２增殖细胞核抗原（ＰＣＮＡ）表达。人重组γ－干扰素（ｒｈｕ－ＩＦＮ－γ）抑制ＰＣＮＡ表达（即抗增殖活性）强弱与其剂量有关；雌激素对ｒｈｕ－ＩＦＮ－γ抗增殖作用无影响。提示：ｒｈｕ－ＩＦＮ－γ对喉癌细胞株ＨＥＰ－２有抗增殖作用，因而在喉癌的治疗中具有应用价值的。     

原位免位PCR检测喉癌中人类乳头状瘤病毒E6蛋白

针对常规免疫组化检测石蜡包埋的喉癌组织中人类乳头状瘤病毒（ＨＰＶ）１６／１８型Ｅ６蛋白阳性率低、信号模糊等缺点，我们探索出一种敏感而有效的检测方法———原位免疫ＰＣＲ（ＩｎＳｉｔｕＩｍｍｕｎｏ－ＰＣＲ，ＩＳＩ－ＰＣＲ），报告如下：１　材料与方法１．１　材料：９例１６／１８型ＨＰＶＤＮＡ阳性的喉癌高分化鳞癌石蜡包埋组织。生物素标记ＰａＴＥＬ１４／ＥｃｏＲＩＤＮＡ片断。ＰＣＲ引物：５’－ＡＴＡＣＣＴＡＴＴＧＣＣＴＡＣＧＧＣＡＧ－３’；５’－ＣＧＴＴＡＧＴＡＡＡＴＧＡＡＴＴＴＴＣＴ－３’。１．２　方法…     

鼻咽癌血管生成及血小板聚集功能与侵袭转移关系的研究

目的：探讨鼻咽癌（ＮＰＣ） 血管生成及血小板聚集功能与ＮＰＣ 侵袭转移关系,为在分子水平干预肿瘤血管形成,预防ＮＰＣ复发和转移打下基础。方法：采用免疫组织化学Ｓ－ Ｐ法检测了５６ 例ＮＰＣ,２０ 例无瘤鼻咽部石蜡标本组织中的微血管密度（ ＭＶＤ） 及血管内皮细胞生长因子（ＶＥＧＦ） 表达。随访３ 年,ＮＰＣ复发转移１７ 例,无复发或转移３９ 例。结果：复发转移组的血小板聚集率ＭＡＲ,ＭＶＤ 及ＶＥＧＦ的表达较无复发转移的表达高,差异有统计学意义;ＭＶＤ 及ＶＥＧＦ的表达与临床分期相关。结论：ＮＰＣ 血管生成及血小板聚集功能亢进与癌浸润和转移行为密切相关,有可能作为判断肿瘤生物学行为及预后指标,对采用血管生成抑制剂及血小板聚集抑制剂防止ＮＰＣ转移有参考价值。     

人疱疹病毒6型对EB病毒复制影响的研究

目的 探讨人疱疹病毒６型（ＨＨＶ－６）对ＥＢ病毒（ＥＢＶ）复制的影响。方法 用ＨＨＶ－６感染Ｒａｊｉ细胞和ＥＢＶ转化的淋巴细胞（ＬＣＬ），并用抗ＨＨＶ－６单克隆抗体（ＭＡｂ）作免疫萤光分析（ＩＦＡ）确定ＨＨＶ－６已感染这二种细胞。用抗ＥＢＶ人血清作ＩＦＡ观察ＥＢＶ抗原表达。结果 ＨＨＶ－６感染Ｒａｊｉ细胞后可见细胞病变效应（ＣＰＥ）；而ＬＣＬ未见ＣＰＥ。这二种细胞株用抗ＨＨＶ－６的ＭＡｂ作ＩＦＡ均     

鼻咽癌活检组织及外周血白细胞EB病毒DNA的检测及其意义

目的：探讨鼻咽组织、外周血血白细胞ＥＢＶ基因组分布及与ＮＰＣ的关系。方法：采用ＰＣＲ法检测２６例ＮＰＣ,４例癌旁及１４例慢性鼻咽炎鼻 组织吸外周血白细胞中ＥＢＶ ＤＮＡ。同时采用酶免疫法测定血清ＶＣＡ－ＬｇＡ。结果：１．ＮＰＣ、癌旁及鼻咽炎组织ＥＢＶ ＤＮＡ无明显差异。２．ＮＰＣ与鼻咽炎组外周血白细胞ＥＢＶ ＤＮＡ有明显差异,Ｐ〈０．０５。３．ＮＰＣ与鼻咽炎组血清ＶＣＡ－ＩｇＡ之间存在明显差异。Ｐ     

增殖细胞核抗原在喉上皮癌前病变中的表达及意义

用免疫组化技术对１１例喉上皮单纯性增生（ＳＨＥ），３２例非典型性增生（ＡＨＥ）及４２例喉鳞状细胞癌（ＬＳＣＣ）的增殖细胞核抗原（ＰＣＮＡ）表达进行了原位检测。结果表明：在ＳＨＥ、ＡＨＥ及ＬＳＣＣ中，ＰＣＮＡ指数为９．５７％、２７．３３％、６８．０５％，差异极有显著性意义（Ｐ＜０．００１）。在轻、中、重度ＡＨＥ中，ＰＣＮＡ指数分别为１３．７９％、３０．８４％，３９．９４％，差异有非常显著意义（Ｐ＜０     

鼻咽癌患者鼻咽组织和血清中EBV检测

目的：比较血清爱泼斯坦－巴尔病毒（ＥＢＶ）抗体滴定度测定与癌组织ＥＢＶ基因组检测对鼻咽癌（ＮＰＣ）的诊断价值。方法：１４６例患者采用双盲法测定血清ＥＢＶ－ＶＣＡ－ＩｇＡ,ＥＢＶ－ＥＡ－ＩｇＡ和活检组织ＥＢＶ－ＤＮＡ（ＰＣＲ）。全组病例按活检病理检查结果分析：ＮＰＣ组,非ＮＰＣ组（对照组）。结果：ＮＰＣ组中ＥＢＶ－ＤＮＡ（ＰＣＲ）,ＥＢＶ－ＶＣＡ－ＩｇＡ和ＥＢＶ－ＥＡ－ＩｇＡ的阳性率分别为９０．８％     

MDM 2基因在鼻咽癌中的表达及其与p53蛋白表达、EB病毒潜伏感染的关系

目的：探讨ＭＤＭ２基因在鼻咽癌（ＮＰＣ）中的表达情况及其与ｐ５３蛋白表达、ＥＢ病毒（ＥＢＶ）潜伏感染的关系。方法：运用非同位素原位杂交、免疫组化和多聚酶链反应技术对４６例ＮＰＣ、１２例慢性鼻咽炎症粘膜（ＣＩＮＥ）分别进行ＭＤＭ２ｍＲＮＡ、ＭＤＭ２蛋白、ｐ５３蛋白及ＥＢＶ－ＤＮＡ的检测。结果：４６例ＮＰＣ中,１４例ｍＲＮＡ及ＭＤＭ２蛋白高表达,３８例为ｐ５３蛋白阳性,４３例为ＥＢＶ－ＤＮＡ阳性,１２     

血管内皮生长因子及其受体对喉癌细胞生长的影响

为探讨血管内皮生长因子（ＶＥＧＦ）在喉癌中的作用及可能的作用方式，用抗ＶＥＧＦ抗体及其受体ｆｌｔ抗体通过微波处理暴露抗原后，进行标准化的ＥｌｉｔｅＡＢＣ染色；将不同浓度的抗ＶＥＧＦ及抗ｆｌｔ抗体分别加入ＨＥＰ－２细胞的培养液中，培养５ｄ后测ＨＥＰ－２细胞的活性（ＭＴＴ法）。结果：免疫组化染色显示ＶＥＧＦ及其受体ｆｌｔ主要在喉癌细胞和血管内皮细胞表达；不同浓度的ＶＥＧＦ抗体及抗ｆｌｔ抗体对ＨＥＰ－２     

喉癌EGFR和PCNA表达及DNA含量的研究

研究喉鳞癌中表皮生长因子受体、增殖细胞核抗原的表达和ＤＮＡ含量,分析各指标间的相关性及与喉癌临床生物学行为和预后的关系。方法：用免疫组化ＳＰ法和图像分析仪检测正常喉粘膜、喉鳞癌的ＥＧＦＲ、ＰＣＮＡ和ＤＮＡ指数,结合临床资料进行分析。结果：喉鳞癌的ＥＧＦＲ的阳性表达率为５４．８％,与正常喉组织的差异有统计学意义,但ＥＧＦＲ的阳性表达与喉癌的病理分级和５年生丰率无显著相关,而ＰＣＮＡ阳性表达和ＤＩ则随     

Expression of epidermal growth factor receptor in laryngeal dysplasia and carcinoma

The immunoreactivity of epidermal growth factor receptor (EGFR) was studied in laryngeal biopsy specimens from 24 patients. The study comprised 5 cases of normal laryngeal mucosa, 5 cases of dysplasia, 7 cases of well differentiated squamous cell carcinoma, and 7 cases of poorly to moderately differentiated squamous cell carcinoma. EGFR was in general not expressed in normal and dysplastic epithelia, whilst all carcinomas showed a rather strong positive immunoreactivity. There was no significant difference in staining patterns between the well and poorly to moderately differentiated carcinomas. The results suggest that EGFR constitutes a component of neoplastic, but probably not preneoplastic, laryngeal disease. The study failed to reveal any difference in staining pattern between different types of laryngeal squamous cell carcinoma.     

喉非典型增生和鳞癌的PCNA,p21表达及其意义

为探索增殖细胞核抗原和ｐ２１在喉非典型增生与其转化后的鳞癌中的表达有无差异。     

免疫球蛋白kappa轻链基因在鼻咽癌中表达的初步研究

目的：为了探讨Ｉｇｋ是否参与了鼻咽癌的癌变过程及可能机制，对Ｉｇｋ在鼻咽癌中的表达进行了研究，并初步探讨Ｉｇｋ与ＥＢ病毒潜伏膜蛋白基因ＬＭＰ－１在鼻咽癌中的相关性。方法：分别运用原位杂交技术和免疫组化技术检测鼻咽癌活检组织中Ｉｇｋ的ＲＮＡ和蛋白质水平的表达。Ｗｅｓｔｅｒｎ印迹分析两株鼻咽癌细胞系（ＣＮＥ１和ＣＮＥ＿ＣＭＰ）ｋａｐｐａ蛋白的表达及强度差异。结果：原位杂交技术显示１００％（４２例／４２     

Prognoses of oral basaloid squamous cell carcinoma and squamous cell carcinoma: a comparison

OBJECTIVE: To compare clinical and prognostic features in patients with basaloid squamous cell carcinoma (BSCC), poorly differentiated squamous cell carcinoma (PDSCC), and well to moderately differentiated squamous cell carcinoma (W/MSCC) of the oral cavity. DESIGN: Retrospective cohort. SETTING: Referral tertiary center. PATIENTS: Seventeen patients with primary oral BSCC, 27 with PDSCC, and 27 with SCC. INTERVENTION: The 71 patients all had surgery and 52 had postoperative radiotherapy. MAIN OUTCOME MEASURES: Recurrences and survival. RESULTS: The median follow-up time was 52.4 months for patients with BSCC, 22.2 months for those with PDSCC, and 13.8 months for those with SCC. No statistically significant differences on survival were found among the BSCC, PDSCC, and SCC groups. The 5-year cancer-specific survival rates were 50% for patients with BSCC, 37% for those with PSCC, and 49% for those with W/MSCC (P =.71); the 5-year overall survival rates were 46% for patients with BSSC, 18% for those with PSCC, and 41% for those with W/MSCC (P =.25). Disease-free survival was not significantly different among the BSCC, PSCC, and W/MSCC groups (P =.57). The 5-year rate of disease-free survival was 40% for patients with BSCC, 37% for those with PSCC, and 53% for those with W/MSCC. CONCLUSIONS: The clinical course of BSCC is similar to the courses of PSCC and W/MSCC when clinical T and N classifications are matched. Prognosis does not differ for patients with BSCC of the oral cavity and those with conventional oral squamous cell carcinomas PSCC and W/MSCC.     

上颌窦鳞癌两种癌基因及增殖细胞核抗原的表达及意义

目的 检测上颌窦鳞癌、上颌窦内翻性乳头状瘤及上颌窦炎性粘膜中ｒａｓ、ｐ５３及增殖细胞核抗原的表达情况，并分析其表达与上颌窦鳞癌临床病理特性和预后的关系。方法 应用免疫组织和化学方法检测４０例上颌窦鳞癌、２０例上颌窦内翻必 状瘤、１０例上颌窦炎性粘膜中ｒａｓ、ｐ５３、ＰＣＮＡ的表达情况。结果 ｒａｓ基因表达与上颌窦鳞癌分化程度有关，其表达多见于高分化鳞癌中；Ｐ５３基因表达只出现在上颌窦鳞癌中，在上颌     

Automated image analysis of proliferating cells in carcinoma of the larynx

OBJECTIVE: To determine the role of cell proliferation neoplastic progression in the larynx and possibly derive criteria of clinical significance using automated quantitative image analysis. MATERIAL AND METHODS: In a retrospective study involving archival material, the occurrence and location, size, shape and staining intensity of proliferating cell nuclear antigen (PCNA)-positive cells (12,538 cells in total) were analyzed in squamous cell carcinoma (SCC), as well as in pre- and non-neoplastic conditions, using computer-assisted morphometry with reproducibility and sensitivity exceeding 99%. RESULTS: Immunohistochemically detectable PCNA-positive cells were located in the basal layer in non-neoplastic states, in well-differentiated SCCs in layers adjacent to the basal membrane and in poorly differentiated neoplasms in the neoplastic epithelial islets. An increased degree of dysplasia was associated with an increased number of PCNA-immunoreactive cells of increased nuclear size and staining intensity. There was a significant difference between carcinomas and dysplasia in terms of altered nuclear shape. With increasing malignancy of SCCs, nuclear shape alterations and PCNA staining intensity increased, whilst nuclear size decreased. CONCLUSIONS: Automated image analysis of cell populations allowed the identification of populations of malignant cells and provided information on the severity of preneoplastic and neoplastic conditions of use in studies of tumor behavior and with potential clinical application.     

涎腺腺样囊性癌中PCNA、P16和P27的表达及其临床意义

目的 :研究 PCNA、P1 6、P2 7基因在涎腺腺样囊性癌中的表达及其临床意义。方法 :采用 SP免疫组织化学染色方法检测 5 5例涎腺腺样囊性癌中 PCNA和 P1 6、P2 7基因蛋白的表达 ,使用 SPSS统计软件进行统计分析。结果 :PCNA在所有病例中均有不同程度的表达 ,其表达程度在组织类型、肿瘤部位和肿瘤分期方面存在着显著差异性 (P<0 .0 5 ) ,而在局部复发、转移和累积生存率方面无显著性差异。 P2 7基因阳性表达率为 34.5 % ,其表达程度在肿瘤部位和肿瘤分期方面存在着显著性差异 (P <0 .0 5 ) ,而在组织类型、局部复发、转移和累积生存率方面无显著性差异。 P1 6 基因阳性表达率为 6 5 .5 % ,其表达程度在所有变量均无显著性差异。结论 :在涎腺腺样囊性癌中 ,PCNA和 P2 7基因作为评估该肿瘤预后的生物学指标需要进一步的研究分析     

CD44蛋白在人喉癌中的表达及其临床意义

目的：ＣＤ４４基因是一各肿瘤转移相关基因。研究检测ＣＤ４４ｖ６蛋白拓喉癌中的表达及其临床意义。方法：用ＣＤ４４ｖ６单克隆抗体,通过免疫组化Ｓ－Ｐ法,对６９例喉鳞状细胞癌蜡块标本和１０例正常喉粘膜标本进行研究,并结合资料进行预后分析。结果：６９例喉鳞状细胞癌、１０例正常喉粘腊中ＣＤ４４ｖ６蛋白阳性表达率分别为５２．２％（３６／３９）和０．０％（０／１０）。ＣＤ４４ｖ６蛋白阳性表达与肿瘤发生部位、病理     

上颌窦鳞癌两种癌基因及增殖细胞核抗原的表达及意义

目的检测上颌窦鳞癌、上颌窦内翻性乳头状瘤及上颌窦炎性粘膜中ｒａｓ、ｐ５３及增殖细胞核抗原（ｐｒｏｌｉｆｅｒａｔｉｎｇｃｅｌｎｕｃｌｅａｒａｎｔｉｇｅｎ，ＰＣＮＡ）的表达情况，并分析其表达与上颌窦鳞癌临床病理特性和预后的关系。方法应用免疫组织化学方法检测４０例上颌窦鳞癌、２０例上颌窦内翻性乳头状瘤、１０例上颌窦炎性粘膜中ｒａｓ、ｐ５３、ＰＣＮＡ的表达情况。结果ｒａｓ基因表达与上颌窦鳞癌分化程度有关，其表达多见于高分化鳞癌中；ｐ５３基因表达只出现在上颌窦鳞癌中，在上颌窦内翻性乳头状瘤及炎性粘膜中无ｐ５３基因的表达；高ＰＣＮＡ指数上颌窦鳞癌较低ＰＣＮＡ指数者预后为差。结论ｐ５３基因表达可能作为上颌窦鳞癌诊断的标志物之一，ＰＣＮＡ指数可作为上颌窦鳞癌预后的参考指标，并可作为指导上颌窦鳞癌治疗的参考。