OLIGODENDROGLIOMA DRIVE GENES
    6.
    发明申请
    OLIGODENDROGLIOMA DRIVE GENES 审中-公开
    OLIGODENDROGLIOMA驱动基因

    公开(公告)号:US20140221219A1

    公开(公告)日:2014-08-07

    申请号:US14233296

    申请日:2012-07-18

    IPC分类号: C12Q1/68

    摘要: Oligodendrogliomas are the second most common malignant brain tumor in adults. These tumors often contain a chromosomal abnormality involving a pericentromeric fusion of chromosomes 1 and 19, resulting in losses of the entire short arm of the former and the long arm of the latter. To identify the molecular genetic basis for this alteration, we performed exomic sequencing of seven anaplastic oligodendrogliomas with chromosome 1p and 19q losses. Among other changes, we found that that CIC (homolog of the Drosophila gene capicua) on chromosome 19q was somatically mutated in six of the seven cases and that FUBP1 (far upstream element (FUSE) binding protein) on chromosome 1p was somatically mutated in two of the seven cases. Examination of 27 additional oligodendrogliomas revealed 12 and 3 more tumors with mutations of CIC and FUBP1, respectively, 58% of which were predicted to result in truncations of the encoded proteins. These results suggest a critical role for these genes in the biology and pathology of oligodendrocytes.

    摘要翻译: 少突神经胶质瘤是成人中第二常见的恶性脑肿瘤。 这些肿瘤通常包含染色体异常,涉及染色体1和染色体1的致晕体融合,导致前者的整个短臂和后者的长臂的损失。 为了确定这种改变的分子遗传基础,我们对染色体1p和19q损失进行了7个分离性少突胶质细胞瘤的外切测序。 在其他变化中,我们发现在七种病例中的六种中,染色体19q上的CIC(果蝇基因capicua的同系物)被体细胞突变,并且染色体1p上的FUBP1(远上游元件(FUSE)结合蛋白)在两个体内被突变 的七例。 另外27例少突胶质细胞瘤的检查显示有12例和3例分别具有CIC和FUBP1突变的肿瘤,其中58%预计会导致编码蛋白的截短。 这些结果表明这些基因在少突胶质细胞的生物学和病理学中的关键作用。

    SOMATIC MUTATIONS IN ATRX IN BRAIN CANCER
    7.
    发明申请
    SOMATIC MUTATIONS IN ATRX IN BRAIN CANCER 有权
    脑癌中ATRX中的SOMATIC MUTATIONS

    公开(公告)号:US20140227271A1

    公开(公告)日:2014-08-14

    申请号:US14129850

    申请日:2012-06-28

    摘要: We determined the sequence of ATRX and DAXX in 447 cancers from various sites. We found mutations most commonly in pediatric glioblastoma multiformae (GBM) (11.1%), adult GBM (6.5%), oligodendrogliomas (7.7%) and medulloblastomas (1.5%); and showed that Alternative Lengthening of Telomeres (ALT), a telomerase-independent telomere maintenance mechanism found in cancers that have not activated telomerase, perfectly correlated with somatic mutations of either gene. In contrast, neuroblastomas, and adenocarcinomas of the ovary, breast, and pancreas were negative for mutations in ATRX and DAXX. Alterations in ATRX or DAXX define a specific molecular pathway that is closely associated with an alternative telomere maintenance function in human cancers.

    摘要翻译: 我们确定了来自各个位点的447例癌症中ATRX和DAXX的序列。 我们发现多形性小儿多形性成胶质细胞瘤(GBM)(11.1%),成人GBM(6.5%),少突胶质细胞瘤(7.7%)和成神经管细胞瘤(1.5%)中最常见的突变; 并且表明,在未激活端粒酶的癌症中发现端粒酶不依赖端粒维持机制的替代延长端粒(ALT)与任一基因的体细胞突变完全相关。 相比之下,成骨细胞瘤和卵巢,乳腺和胰腺腺癌对于ATRX和DAXX中的突变是阴性的。 ATRX或DAXX中的改变定义了与人类癌症中替代端粒维持功能密切相关的特定分子途径。

    Converting diploidy to haploidy for genetic diagnosis
    10.
    发明授权
    Converting diploidy to haploidy for genetic diagnosis 有权
    将二倍体转化为单倍体用于遗传诊断

    公开(公告)号:US06475794B1

    公开(公告)日:2002-11-05

    申请号:US09504860

    申请日:2000-02-16

    IPC分类号: C12N1502

    摘要: Detection of mutations associated with hereditary diseases is complicated by the diploid nature of mammalian cells. Mutations present in one allele are often masked by the wild-type sequence of the other allele. Individual alleles can be isolated from every chromosome within somatic cell hybrids generated from a single fusion. Nucleic acids from the hybrids can be analyzed for mutations in an unambiguous manner. This approach was used to detect two cancer-causing mutations that had previously defied genetic diagnosis. One of the families studied, Warthin Family G, was the first kindred with a hereditary colon cancer syndrome described in the biomedical literature.

    摘要翻译: 与遗传性疾病相关的突变的检测由于哺乳动物细胞的二倍体性质而复杂化。 存在于一个等位基因中的突变通常被其他等位基因的野生型序列掩蔽。 可以从单次融合产生的体细胞杂交体内的每个染色体分离个体等位基因。 来自杂种的核酸可以以明确的方式分析突变。 这种方法被用于检测先前不符合遗传诊断的两种致癌突变。 研究的家庭之一,Warthin Family G,是生物医学文献中描述的第一个遗传性结肠癌综合症患者。