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    • 2. 发明授权
    • Purging leukemia cells from hematopoietic stem cells
    • 从造血干细胞清除白血病细胞
    • US06461869B1
    • 2002-10-08
    • US09357752
    • 1999-07-20
    • Paul SchwarzenbergerJay Kolls
    • Paul SchwarzenbergerJay Kolls
    • C12N1586
    • C12N5/0093A61K2035/124C12N5/0647C12N5/0694
    • A gene therapy system is disclosed that selectively kills leukemia cells in bone marrow, while leaving stem cells unaffected. All cells in a mixture of stem cells and leukemia cells are transfected with a high efficiency gene transfer vector. The vector carries a eukaryotic expression construct encoding a toxin gene. This toxin gene is expressed only in leukemia cells, not in stem cells. Differential expression of the toxin gene in leukemia cells and stem cells may be achieved by placing the coding sequence under the control of an appropriate promoter, such as the RSV promoter or the SV40 promoter. High gene expression has been demonstrated in a panel of transformed leukemia cell lines, but no gene expression in transformed, CD34-selected, primary human stem cells. The treatment will be useful not only for leukemia patients, but also for other cancer patients undergoing autologous bone marrow transplants (e.g., breast or lymphoma cancers).
    • 公开了一种基因治疗系统,其选择性地杀死骨髓中的白血病细胞,同时使干细胞不受影响。 用高效率的基因转移载体转染干细胞和白血病细胞混合物中的所有细胞。 载体携带编码毒素基因的真核表达构建体。 这种毒素基因仅在白血病细胞中表达,而不是在干细胞中表达。 毒素基因在白血病细胞和干细胞中的差异表达可以通过将编码序列置于合适的启动子如RSV启动子或SV40启动子的控制下来实现。 已经在一组转化的白血病细胞系中证实了高基因表达,但是在转化的CD34选择的原代人干细胞中没有基因表达。 该治疗不仅对白血病患者有用,而且对于经历自体骨髓移植(例如乳腺癌或淋巴瘤)的其它癌症患者也是有用的。
    • 7. 发明授权
    • Plant pyruvate dehydrogenase kinase gene
    • 植物丙酮酸脱氢酶激酶基因
    • US06825039B2
    • 2004-11-30
    • US10202428
    • 2002-07-23
    • Jitao ZouDavid C. Taylor
    • Jitao ZouDavid C. Taylor
    • C12N1586
    • C12N9/1205C12N15/8243C12N15/8247C12N15/8261C12N15/827Y02A40/146
    • The present invention relates to the isolation, purification, characterization and use of a mitochondrial pyruvate dehydrogenase kinase (PDHK) gene (SEQ ID NO:1) (pYA5; ATCC No 209562) from the Brassicaceae (specifically Arabidopsis thaliana). The invention includes isolated and purified DNA of the stated sequence and relates to methods of regulating fatty acid synthesis, seed oil content, seed size/weight, flowering time, vegetative growth, respiration rate and generation time using the gene and to tissues and plants transformed with the gene. The invention also relates to transgenic plants, plant tissues and plant seeds having a genome containing an introduced DNA sequence of SEQ ID NO:1, or a part of SEQ ID NO:1 characterized in that said sequence has been introduced in an anti-sense or sense orientation, and a method of producing such plants and plant seeds. The invention also relates to substantially homologous DNA sequences from plants encoding proteins with deduced amino acid sequences of 25% or greater identity, and 50% or greater similarity, isolated and/or characterized by known methods using the sequence information of SEQ ID NO:1, and to parts of reduced length that are still able to function as inhibitors of gene expression by use in an anti-sense, co-suppression or other gene silencing technologies.
    • 本发明涉及来自十字花科(特别是拟南芥属)的线粒体丙酮酸脱氢酶激酶(PDHK)基因(SEQ ID NO:1)(pYA5; ATCC No 209562)的分离,纯化,表征和应用。 本发明包括所述序列的分离和纯化的DNA,并且涉及调节脂肪酸合成,种子油含量,种子大小/重量,开花时间,营养生长,呼吸速率和使用该基因和组织和植物转化的产生时间的方法 与基因。 本发明还涉及具有包含SEQ ID NO:1的引入的DNA序列或SEQ ID NO:1的部分的基因组的转基因植物,植物组织和植物种子,其特征在于所述序列被引入反义 或感觉取向,以及生产这种植物和植物种子的方法。 本发明还涉及来自编码具有25%或更高同一性的推定的氨基酸序列的蛋白质的植物的基本上同源的DNA序列,以及50%或更多相似性的分离和/或通过使用SEQ ID NO:1的序列信息的已知方法 ,以及通过用于反义,共抑制或其他基因沉默技术仍然能够用作基因表达抑制剂的减少长度的部分。