表达的

With western blot analysis and DNA polymerase chain reaction-single strand conformation polymorphism assay,protein product of Rb gene and mutation in exon 5～8 of P_(53) gene were examined in 17 cases of human testicular seminoma.

采用Western印迹和DNA聚合酶链反应－单股构造多态性分析法对17例人睾丸精原细胞瘤组织标本的抗癌基因Rb表达的蛋白产物和P_（53）基因外显子5～8的突变进行检测，发现有3例标本的Rb基因表达的蛋白产物缺失，有4例标本的P_（53）基因有点突变，对照的正常人睾丸组织和视网膜组织均呈Rb基因蛋白产物表达阳性，对照的正常人睾丸组织中未发现P_（53）基因突变。

We also showed that coadministration of AG825 or AG1478 will enhance the efficacy of cytotoxic AGent cisplatin.

了解5种人类非小细胞肺癌细胞系A549、H322、H358、H460、H1299的HER2和EGFR蛋白表达水平，探讨5种细胞系HER2蛋白表达水平与顺铂IC50之间的关系；观察HER2和EGFR小分子酪氨酸激酶抑制剂AG825和AG1478对5种细胞系的生长抑制作用；观察AG825、AG1478联合顺铂对5种细胞系的协同生长抑制作用；研究AG825、AG1478联合顺铂对H322、H1299细胞系细胞增殖、细胞周期、细胞凋亡和坏死的影响；研究AG825、AG1478联合顺铂所致H322、H1299细胞系EGFR、磷酸化ERK和总ERK表达的变化，探讨协同生长抑制作用的机制。

It is proposed that coadministration of carbachol could prevent apoptosis and related alterations in gene expressions induced by sodium selenite just as the carbachol did in the case when apoptosis and related changes in genomic expression were induced by β-amyloid peptide. The facts suggest that apoptosis, at least that induced by two agents tested by us, might be initiated through a similar pathway.

这些结果表明，亚硒酸钠能在较早的时间诱导培养的大脑皮质神经元凋亡，且具有明显的剂量和时间依赖关系；凋亡的引起可能是以亚硒酸钠影响某些特殊基因的表达为基础，其中，c-fos、bax、P53、和bcl-表达的变化主要与细胞凋亡的早期事件有关，而AChE基因表达的增强同凋亡发展的整个过程密切相关。

Based on these previous work, in this research, in order to explore the the molecular mechanism of enhanced tumor cell immunogenicity treated by elemene and mytomycin C compositely, we used murine Hca-F ascitic hepatic carcinoma ( high lymphatic metastasis substrain of H22) as an experimental model to compare the immunoprotective effects on Hca-F cells as well as the mechanism of the effects caused by HSP70-peptide complex purified from untreated tumor cells, EC-TCV and BCG; We studied the mechanism of increased tumor cell membrane HSP expression treated with elemene by the techniques of RT-PCR and immunoelectron microscopy; In order to deeply elucidate the antitumor effects and the molecular mechanism of elemene in increasing tumor cell immunogenicity we analyzed and compared the effects of elemene and heat shock on the gene expressions of tumor cell using gene expression profile chip.

本论文在上述研究成果的基础上，选择小鼠肝癌H22的高淋巴道转移亚系Hca-F为模型，进一步比较了未处理肿瘤细胞来源、榄香烯复合瘤苗来源的和卡介苗来源的HSP70-肽复合物对Hca-F的免疫保护效应、效应机制，探讨榄香烯-丝裂霉素复合处理增强肿瘤细胞免疫原性的分子机制；以Hca-F和人肝癌细胞株HepG〓等为模型研究了榄香烯处理增强肿瘤细胞膜热休克蛋白表达的机制；以HepG〓为模型用表达谱基因芯片研究比较了榄香烯与热休克处理对肿瘤细胞基因表达的影响，从而进一步阐明榄香烯抗肿瘤作用及增强肿瘤细胞免疫原性的分子机制。

In this study, the amount of ethylene and its key biosynthesis genes expression, typical allelochemical hydroxamic acid concentration and the key regulation genes (BX1 and BX9), as well as the dynamic expression and time of relevant defense key genes of secondary substance metabolism processes were compared in ethephon treatments of different concentration and duration.

为探明外源乙烯利对玉米化学防御作用诱导的浓度和时间效应，本文采用化学和分子生物学相结合的方法，研究了不同浓度乙烯利处理玉米后，叶片乙烯释放量及其合成调控关键基因ACS和ACO表达的变化，典型化感物质丁布的含量及其关键调控基因BX1和BX9表达的变化，以及其他调控次生代谢物的关键基因表达的时间动态。

Nucleoprotein is also a major immunogenetic antigen for SARS; however, several tests have shown that N protein had the reactivity with other coronavirus positive sera. It is therefore an advantage of S protein as recombinant target antigen for SARS serum diagnosis compared with recombinant N protein. Moreover, S protein has been shown to be the major antigenic determinant that induces neutralizing antibodies and protective immunity to SARS-CoV, so it is also important in designing SARS genetic engineering vaccine.

SARS-CoV S 蛋白由1255 个氨基酸组成，体外表达如此大的蛋白很困难，而且表达蛋白的可溶性不高；其次，实验已经证实，全长S 蛋白含有大量无关的表位，致使表达的全长S蛋白对SARS 阳性血清的检出率低于S 蛋白片段；另外作为疫苗研究，S 蛋白上大量无关表位作为异体蛋白进入体内，会引发机体的过度免疫反应，这也是SARS-CoV 可能的致病机理之一。

At present, the research about Heregulin-αand itsreceptors ErbB2 and ErbB3 was only the expression of them in mRNA and the impact ofHeregulin-αon the proliferation of mammary epithelial cells and milk proteins expression inculture. There were no results about the expression of Heregulin-αand its receptors in protein andthe impacts of Heregulin-αon the development, lactation and involution of mammary gland. It wasalso not clear about the signal transduction pathway of Heregulin-αin mammary gland.

目前对于乳腺中Heregulin-α及其受体ErbB2和ErbB3的研究仅限于其mRNA水平的表达以及Heregulin-α对培养的乳腺上皮细胞增殖和乳蛋白表达的影响，尚缺乏对乳腺中Heregulin-α及其受体在蛋白质水平上的表达变化规律以及Heregulin-α对乳腺发育、泌乳及退化的作用研究，正常乳腺中Heregulin-α的信号转导途径也不完全清楚。

Cells were immediately fixed and processed for immuno?uorescence and tested for translocation ofβ-catenin.β-catenin and target genes of Wnt/β-catenin signaling COX-2, cyclinD1, c-fos, c-Jun mRNA expression were examined by RT-PCR. Saos-2 osteoblastic cells were co-transfected with a wild type or mutant Tcf luciferase reporter gene and Renilla luciferase plasmid. Posttransfection cells were subjected to 1 hour of 12% elongation.

作用1h、2h和4h后，用免疫荧光的方法检测β-catenin的表达和在细胞上定位的变化；用半定量RT-PCR检测β-catenin mRNA表达的变化；用质粒转染的方法检测荧光素酶报告基因Tcf转录的情况；用半定量RT-PCR检测Wnt/β-catenin通路下游基因COX-2，cyclinD1， c-fos， c-Jun mRNA表达的情况；用免疫共沉淀的方法检测β-catenin和E-Cadherin的结合情况。

To determine the effects of ovarian steroid hormones and some cytokines on the expression of RANTES in cultured cells METHODS AND RESULTS The study included the following two parts 1 The Protein Production of RANTES in Peritoneal Fluids and the Expression of RANTES mRNA in Eutopic and Ectopic Endometrium of Patients with Endometriosis Twenty-eight patients with endometriosis were selected as study group and twenty patients without endometriosis and maglinant disease were selected as control group . In our study, 10 samples of peritoneal fluid in Em and 10 samples of in En were taken, 13 specimens of ovarian endometrioma , 3 red peritoneal endometriotic lesions , 2 uterosacral ligament nodules , 17 matched eutopic endometrium and 12 specimens of endometrium in En were biopsied.

研究目的 1 从蛋白水平检测RANTES在子宫内膜异位症患者腹水中的表达，从核酸水平比较RANTES在内异症患者的异位病灶和在位内膜与非内异症患者子宫内膜之间表达的差异，探讨RANTES在内异症患者盆腔炎性反应中的作用；2 体外培养在位和异位的子宫内膜细胞，研究细胞因子TNFα、INFγ、雌孕激素以及PPARγ激动剂15-d-PGJ〓对RANTES表达的影响，探讨这些因素在内异症发病机理及内异症患者盆腔炎性反应中的作用。

After optimizing the expression conditions, a higher production could be obtained when GS115-proCPB was induced in BMGY(pH 6.0), at 28℃, with addition of 0.5% casein acid, 3 mmol/L PMSF, and 0.5% methanol per 12 h. The yield of recombinant protein reached 500 mg/L, and achieved over 94% of total protein in the culture supernatant.

通过表达条件的优化，使用BMGY(pH 6.0)培养基，添加0.5%的酪蛋白水解物和3 mmol/L的PMSF，于28 ℃培养，每隔12 h补加0.5%的甲醇，重组酵母GS115-proCPB 表达的重组蛋白可达500 mg/L 以上，表达的目的蛋白占总蛋白的94%以上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。