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公开(公告)号:US20090137427A1
公开(公告)日:2009-05-28
申请号:US11976019
申请日:2007-10-19
CPC分类号: C12N15/1024 , C07K14/47 , C12N15/01 , C12N15/102
摘要: Dominant negative alleles of human mismatch repair genes can be used to generate hypermutable cells and organisms. By introducing these genes into cells and transgenic animals, new cell lines and animal varieties with novel and useful properties can be prepared more efficiently than by relying on the natural rate of mutation. The enhanced rate of mutation can be further augmented using mutagens. Moreover, the hypermutability of mismatch repair deficient cells can be remedied to stabilize cells or mammals with useful mutations.
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公开(公告)号:US20080318321A1
公开(公告)日:2008-12-25
申请号:US11930391
申请日:2007-10-31
IPC分类号: C12N15/87
CPC分类号: C12N15/1024 , C12N15/01 , C12N15/102
摘要: Bacteria are manipulated to create desirable output traits using dominant negative alleles of mismatch repair proteins. Enhanced hypermutation is achieved by combination of mismatch repair deficiency and exogenously applied mutagens. Stable bacteria containing desirable output traits are obtained by restoring mismatch repair activity to the bacteria.
摘要翻译: 操纵细菌以使用错配修复蛋白质的显性负等位基因产生理想的输出性状。 通过错配修复缺陷和外源应用诱变剂的组合实现增强的超突变。 通过恢复对细菌的错配修复活性获得含有所需输出性状的稳定细菌。
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公开(公告)号:US07087583B2
公开(公告)日:2006-08-08
申请号:US09813824
申请日:2001-03-22
IPC分类号: A61K31/711
CPC分类号: G01N33/5008 , C07K14/4746 , C12Q1/6811 , C12Q1/6886 , C12Q2600/106 , C12Q2600/136 , C12Q2600/154 , G01N33/5011 , G01N33/57496 , G01N33/68
摘要: Specific sequences in the human genome are the sites of strong binding of wild-type p53 protein, but not mutant forms of the protein. These sequences are used diagnostically to detect cells in which the amount of wild-type p53 is diminished. The sequences can also be used to screen for agents which correct for loss of wild-type p53 to DNA in cancer cells.
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公开(公告)号:US07026119B2
公开(公告)日:2006-04-11
申请号:US09780675
申请日:2001-02-12
CPC分类号: C12N15/1024 , C12N15/01 , C12N15/102
摘要: Bacteria are manipulated to create desirable output traits using dominant negative alleles of mismatch repair proteins. Enhanced hypermutation is achieved by combination of mismatch repair deficiency and exogenously applied mutagens. Stable bacteria containing desirable output traits are obtained by restoring mismatch repair activity to the bacteria.
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公开(公告)号:USRE38916E1
公开(公告)日:2005-12-06
申请号:US09442489
申请日:1999-11-18
申请人: Bert Vogelstein , Kenneth W. Kinzler , Hans Albertsen , Rakesh Anand , Mary Carlson , Joanna Groden , Philip John Hedge , Geoff Joslyn , Alexander Fred Markham , Yusuka Nakamura , Andrew Thilveris , Raymond L. White
发明人: Bert Vogelstein , Kenneth W. Kinzler , Hans Albertsen , Rakesh Anand , Mary Carlson , Joanna Groden , Philip John Hedge , Geoff Joslyn , Alexander Fred Markham , Yusuka Nakamura , Andrew Thilveris , Raymond L. White
CPC分类号: C07K14/47
摘要: A human gene termed APC is disclosed. Methods and kits are provided for assessing mutations of the APC gene in human tissues and body samples. APC mutations are found in familial adenomatous polyposis patients as well as in sporadic colorectal cancer patients. APC is expressed in most normal tissues. These results suggest that APC is a tumor suppressor.
摘要翻译: 公开了一种称为APC的人类基因。 提供了用于评估人类组织和身体样品中APC基因突变的方法和试剂盒。 家族性腺瘤性息肉病患者以及散发性结肠直肠癌患者发现APC突变。 APC在大多数正常组织中表达。 这些结果表明APC是肿瘤抑制因子。
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公开(公告)号:US06746845B2
公开(公告)日:2004-06-08
申请号:US10096596
申请日:2002-03-14
IPC分类号: C12Q168
CPC分类号: C12N15/1096 , C12Q1/6809 , C12Q1/6869 , C12Q2539/103
摘要: Serial analysis of gene expression, SAGE, a method for the rapid quantitative and qualitative analysis of transcripts is provided. Short defined sequence tags corresponding to expressed genes are isolated and analyzed. Sequencing of over 1,000 defined tags in a short period of time (e.g., hours) reveals a gene expression pattern characteristic of the function of a cell or tissue. Moreover, SAGE is useful as a gene discovery tool for the identification and isolation of novel sequence tags corresponding to novel transcripts and genes.
摘要翻译: 提供基因表达的串行分析,SAGE,一种用于快速定量和定性分析转录本的方法。 分离并分析与表达基因相对应的短定义序列标签。 在短时间(例如,小时)内测定超过1,000个定义的标签显示了细胞或组织功能特征的基因表达模式。 此外,SAGE可用作用于鉴定和分离对应于新转录物和基因的新序列标签的基因发现工具。
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公开(公告)号:US06432640B1
公开(公告)日:2002-08-13
申请号:US09154750
申请日:1998-09-17
IPC分类号: C12Q168
CPC分类号: C12Q1/6809 , C12Q1/6886 , C12Q1/6897 , C12Q2539/103 , C12Q2600/136 , C12Q2600/142
摘要: The most well-documented biochemical property of p53 is its ability to transcriptionally activate genes. Many of the genes which are activated by p53 expression prior to the onset of apoptosis are predicted to encode proteins which could generate or respond to oxidative stress, including one that is implicated in apoptosis within plant meristems. p53 may result in apoptosis through a three-step process: (I) the transcriptional induction of specific redox-related genes; (ii) the formation of reactive oxygen species (ROS); and (iii) the oxidative degradation of mitochondrial components, rapidly leading to cell death. Transcription of other genes is decreased by p53. Examination of the level of transcription of p53-induced or repressed genes can be used to determine p53 status, to diagnose cancer, and to evaluate cytotoxicity or carcinogenicity of a test agent.
摘要翻译: 最有说明的p53生物化学性质是其转录激活基因的能力。 预计在细胞凋亡发生之前由p53表达激活的许多基因可以编码可产生或响应氧化应激的蛋白质,包括与植物分生组织内凋亡相关的蛋白质。 p53可能通过三步过程导致凋亡:(I)特异性氧化还原相关基因的转录诱导; (ii)形成活性氧(ROS); 和(iii)线粒体成分的氧化降解,迅速导致细胞死亡。 其他基因的转录通过p53降低。 检测p53诱导或抑制基因的转录水平可用于确定p53状态,诊断癌症,并评估测试药物的细胞毒性或致癌性。
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公开(公告)号:US06333152B1
公开(公告)日:2001-12-25
申请号:US09081646
申请日:1998-05-20
申请人: Bert Vogelstein , Kenneth W. Kinzler , Lin Zhang , Wei Zhou
发明人: Bert Vogelstein , Kenneth W. Kinzler , Lin Zhang , Wei Zhou
IPC分类号: C12Q168
CPC分类号: C12Q1/6809 , C12Q1/6886 , C12Q2600/118 , C12Q2600/136 , C12Q2600/158 , G01N33/574
摘要: As a step towards understanding the complex differences between normal and cancer cells, gene expression patterns were examined in gastrointestinal tumors. More than 300,000 transcripts derived from at least 45,000 different genes were analyzed. Although extensive similarity was noted between the expression profiles, more than 500 transcripts that were expressed at significantly different levels in normal and neoplastic cells were identified. These data provide insights into the extent of expression differences underlying malignancy and reveal genes that are useful as diagnostic or prognostic markers.
摘要翻译: 作为理解正常和癌细胞之间复杂差异的一步,在胃肠道肿瘤中检查基因表达模式。 分析来自至少45,000个不同基因的超过30万个转录物。 虽然在表达谱之间注意到广泛的相似性,但是鉴定了在正常和肿瘤细胞中以显着不同水平表达的500多个转录物。 这些数据提供了对恶性肿瘤的表达差异程度的了解,并揭示了可用作诊断或预后标志物的基因。
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公开(公告)号:US06255464B1
公开(公告)日:2001-07-03
申请号:US08840767
申请日:1997-04-16
IPC分类号: C07H2102
CPC分类号: C07K14/4703 , A61K38/00
摘要: Five human genes related to the Mad gene of Drosophila were identified. One of these genes (Smad2) was found to reside at chromosome 18q21, adjacent to a previously described member of this family called DPC4 (Smad4). Smad2 was found to be somatically mutated in two of eighteen human colorectal cancers. Smad2 and Smad4 are important in the suppression of neoplasia by mediating the growth inhibitory effects of TGF-&bgr;-like ligands.
摘要翻译: 鉴定了与果蝇Mad基因相关的五个人类基因。 发现这些基因之一(Smad2)位于染色体18q21处,与该家族之前称为DPC4(Smad4)的成员相邻。 发现Smad2在十八个人结肠直肠癌中的两个中被体细胞突变。 Smad2和Smad4通过介导TGF-β样配体的生长抑制作用来抑制肿瘤是重要的。
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公开(公告)号:US5922576A
公开(公告)日:1999-07-13
申请号:US31917
申请日:1998-02-27
IPC分类号: C07K14/075 , C12N15/861 , C12N15/64 , C07H21/04 , C12N1/21 , C12N15/70
CPC分类号: C12N15/86 , C07K14/005 , C12N2710/10322 , C12N2710/10343 , C12N2830/38
摘要: Recombinant adenoviruses provide a versatile system for gene expression studies and therapeutic applications. This invention describes a strategy which simplifies the generation and production of such viruses. A recombinant adenoviral plasmid is generated with a minimum of enzymatic manipulations, employing homologous recombination in bacteria rather than in eucaryotic cells. Following transfections of such plasmids into a mammalian packaging cell line, viral production can be conveniently followed with the aid of green fluorescent protein, encoded by a gene incorporated into the viral backbone. Homogeneous viruses can be obtained from this procedure without plaque purification. This system expedites the process of generating and testing recombinant adenoviruses.
摘要翻译: 重组腺病毒为基因表达研究和治疗应用提供了多功能的系统。 本发明描述了一种简化这种病毒生成和生产的策略。 通过最少的酶操作产生重组腺病毒质粒,在细菌中而不是在真核细胞中使用同源重组。 在将这些质粒转染到哺乳动物包装细胞系之后,可以方便地利用由掺入病毒骨架的基因编码的绿色荧光蛋白来辅助病毒生产。 可以从该程序获得均一的病毒,无需进行噬斑纯化。 该系统加速了重组腺病毒的产生和检测过程。
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