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Affymetrix SNP array data for rhabdomyosarcoma samples

ABSTRACT: Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from fresh frozen tissues. To obtain a profile of copy number alterations in RMS, we studied 65 samples in 60 RMS cases. Other data of 38 samples are deposited in GSE41263: GSM1528059 GSM1528057 GSM1528061 GSM1528058 GSM1528054 GSM1528060 GSM1012723 GSM1012722 GSM1012746 GSM1528055 GSM1528056 GSM1530028 GSM1012751 GSM1012724 GSM1012726 GSM1012747 GSM1012725 GSM1012716 GSM1012735 GSM1012713 GSM1012736 GSM1012737 GSM1012738 GSM1012730 GSM1012739 GSM1012740 GSM1012750 GSM1012717 GSM1012718 GSM1012719 GSM1012741 GSM1012732 GSM1012715 GSM1012720 GSM1012742 GSM1012721 GSM1012743 GSM1012744

ORGANISM(S): Homo sapiens

PROVIDER: GSE63891 | GEO | 2015/06/30

SECONDARY ACCESSION(S): PRJNA269634

REPOSITORIES: GEO

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Affymetrix SNP array data for rhabdomyosarcoma samples

Project description:Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from fresh frozen tissues. To obtain a profile of copy number alterations in RMS, we studied 65 samples in 60 RMS cases. Other data of 38 samples are deposited in GSE41263: GSM1528059 GSM1528057 GSM1528061 GSM1528058 GSM1528054 GSM1528060 GSM1012723 GSM1012722 GSM1012746 GSM1528055 GSM1528056 GSM1530028 GSM1012751 GSM1012724 GSM1012726 GSM1012747 GSM1012725 GSM1012716 GSM1012735 GSM1012713 GSM1012736 GSM1012737 GSM1012738 GSM1012730 GSM1012739 GSM1012740 GSM1012750 GSM1012717 GSM1012718 GSM1012719 GSM1012741 GSM1012732 GSM1012715 GSM1012720 GSM1012742 GSM1012721 GSM1012743 GSM1012744 Copy number analysis of Affymetrix 250K or Cytoscan_HD SNP arrays was performed for 27 rhabdomyosarcoma samples.

2015-06-30 | E-GEOD-63891 | biostudies-arrayexpress

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Affymetrix SNP array data for pediatric rhabdomyosarcoma (RMS)

Project description:To elucidate the pathogenesis of rhabdomyosarcoma (RMS), particularly for different subgroups, we performed a SNP array-based copy number analysis of 46 RMS specimens from primary cases with ERMS (N = 21), ARMS (N = 14), unclassified RMS (N = 1), and RMS of unknown histology (N = 3) together with 7 RMS-derived cell lines. The ERMS subtype was characterized by hyperploidy and was significantly associated with gains of chromosomes 2, 8, and 12, whereas majority of ARMS cases exhibited near-diploid copy number profiles. Recurrent loss of heterozygosity (LOH) of chromosomes 3 (28.6%) and 15q (35.7%) was detected in ARMS. Uniparental disomy/polysomy of 11p was commonly found in both tumor types. Focal gains/amplifications were associated mostly with PAX3-FOXO1 (5/10) or PAX7-FOXO1 (6/6) fusions, but novel amplified regions were also found, including the IRS2 in 2 ARMS. Gain of 13q was significantly associated with good patient outcome in ERMS. These findings not only illustrate genetic differences between ARMS and ERMS but also provide novel insights into the pathogenesis of RMS. Copy number analysis of Affymetrix 50K/250K SNP arrays was performed for 46 RMS samples.

2013-08-12 | E-GEOD-41263 | biostudies-arrayexpress

Affymetrix SNP array data for pediatric rhabdomyosarcoma (RMS)

Project description:To elucidate the pathogenesis of rhabdomyosarcoma (RMS), particularly for different subgroups, we performed a SNP array-based copy number analysis of 54 RMS specimens from primary cases with ERMS (N = 30), ARMS (N = 14), unclassified RMS (N = 1), and RMS of unknown histology (N = 3) together with 7 RMS-derived cell lines. The ERMS subtype was characterized by hyperploidy and was significantly associated with gains of chromosomes 2, 8, and 12, whereas majority of ARMS cases exhibited near-diploid copy number profiles. Recurrent loss of heterozygosity (LOH) of chromosomes 3 (28.6%) and 15q (35.7%) was detected in ARMS. Uniparental disomy/polysomy of 11p was commonly found in both tumor types. Focal gains/amplifications were associated mostly with PAX3-FOXO1 (5/10) or PAX7-FOXO1 (6/6) fusions, but novel amplified regions were also found, including the IRS2 in 2 ARMS. Gain of 13q was significantly associated with good patient outcome in ERMS. These findings not only illustrate genetic differences between ARMS and ERMS but also provide novel insights into the pathogenesis of RMS.

2013-08-12 | GSE41263 | GEO

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