Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Array-based bioinformatic analysis on pediatric primary central nervous system germ cell tumors

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE19347: microRNA expression data from pediatric primary intracranial germ cell tumor GSE19348: expression data from pediatric primary intracranial germ cell tumor GSE19349: Genotyping and analysis of chromosome copy number variation (CNV) from pediatric primary intracranial germ cell tumor Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: Yu Hsuan Wu

PROVIDER: E-GEOD-19350 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Pediatric primary central nervous system germ cell tumors of different prognosis groups show characteristic miRNome traits and chromosome copy number variations.

Wang Hsei-Wei HW Wu Yu-Hsuan YH Hsieh Jui-Yu JY Liang Muh-Lii ML Chao Meng-En ME Liu Da-Jung DJ Hsu Ming-Ta MT Wong Tai-Tong TT

BMC genomics 20100224

<h4>Background</h4>Intracranial pediatric germ cell tumors (GCTs) are rare and heterogeneous neoplasms and vary in histological differentiation, prognosis and clinical behavior. Germinoma and mature teratoma are GCTs that have a good prognosis, while other types of GCTs, termed nongerminomatous malignant germ cell tumors (NGMGCTs), are tumors with an intermediate or poor prognosis. The second group of tumors requires more extensive drug and irradiation treatment regimens. The mechanisms underlyi ...[more]

PMID: 20178649

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Project description:Contemporary Jews comprise an aggregate of ethno-religious communities whose worldwide members identify with each other through various shared religious, historical, and cultural traditions1,2. Historical evidence suggests common origins in the Middle East, followed by migrations leading to the establishment of communities of Jews in Europe, Africa, and Asia - in what is termed the Jewish Diaspora3-5. This complex demographic history imposes special challenges in attempting to address the genetic structure of the Jewish people6. While many genetic studies have shed light on Jewish diseases and origins, including those focusing on uniparentally- and biparentally-inherited markers7-16, genome-wide patterns of variation across the vast geographic span of Jewish Diaspora communities and their respective neighbors have yet to be addressed. Here we use high-density bead arrays to genotype individuals from 14 Jewish Diaspora communities, and compare these patterns of genome-wide diversity with those from 69 Old World non-Jewish populations, of which 25 have not been previously reported. These samples were carefully chosen to provide comprehensive comparisons between Jewish and non-Jewish populations in the Diaspora, as well as with non-Jewish populations from the Middle East and North Africa. Principal component and structure-like analyses identify previously unrecognized genetic substructure within the Middle East. Most Jewish samples form a remarkably tight sub-cluster that overlies Druze and Cypriot samples, but not samples from other Levantine populations or paired Diaspora host populations. In contrast, Ethiopian Jews (Beta Israel) and Bene Israel Indian Jews cluster with neighbouring autochthonous populations in Ethiopia and western India, respectively; despite a clear paternal link between the Bene Israel and the Levant. These results cast light on the variegated genetic architecture of the Middle East, and trace the origins of most Jewish Diaspora communities to the Levant. 466 samples are analysed on three different Illumina platforms.

Dataset Information

Array-based bioinformatic analysis on pediatric primary central nervous system germ cell tumors

Publications

Pediatric primary central nervous system germ cell tumors of different prognosis groups show characteristic miRNome traits and chromosome copy number variations.

Similar Datasets

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