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Transcriptomes of SIX1 deficient and control Rhabdomyosarcoma cells

ABSTRACT: Transcriptomes of SIX1 deficient and control Rhabdomyosarcoma cells

PROVIDER: PRJNA723889 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14304950_1.fastq.gz	Fastqsanger.gz
	SRR14304950_2.fastq.gz	Fastqsanger.gz
	SRR14304951_1.fastq.gz	Fastqsanger.gz
	SRR14304951_2.fastq.gz	Fastqsanger.gz
	SRR14304952_1.fastq.gz	Fastqsanger.gz

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Transcriptomes of SIX1 deficient and control Rhabdomyosarcoma cells

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Project description:Genetic and shRNA-mediated inhibition of SIX1 expression in RMS cells induces myogenic differentiation and impedes RMS tumor growth. To elucidate the mechanism by which SIX1 loss activates a differentiation program, we performed SIX1, MYOD1, and H3K27ac ChIPseq in two SIX1 knockdown SMS-CTR cell lines and one control SMS-CTR cell line to profile changes in transcriptional activity and myogenic transcription factor binding in fusion-negative Rhabdomyosarcoma.

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Project description:The overexpression of Six1, a member of the Six family of homeodomain transcription factors, has been found in various human cancers, and is associated with tumor progression and metastasis. We previously determined that the expression of Six1 mRNA increased during in vitro progression of human papillomavirus type 16 (HPV16)-immortalized human keratinocytes (HKc/HPV16) toward a differentiation-resistant (HKc/DR) phenotype. However, if Six1 promotes HPV16-mediated transformation or not remains unknown. HKc/DR were transfected with a Six1 or control vector and RNA isolated from these cells were used in an Agilent two-color gene expression profiling experiment. The goal was to determine the effects of Six1 on global gene expression. Two-condition experiment, Six1 vs. Control HKc/DR cells. Biological replicates: 4 Six1-transfected replicates and 4 control-transfected replicates.

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Project description:Although an important association between lymph node metastasis and poor prognosis in breast cancer was observed decades ago, an active role for the lymphatic system in metastatic dissemination has only recently been examined. We demonstrate that the Six1 homeoprotein promotes peri- and intra-tumoral lymphangiogenesis, lymphatic invasion, and distant metastasis of breast cancer cells. We identify the pro-lymphangiogenic factor, VEGF-C, as required for this process, and demonstrate transcriptional induction as the mechanism of regulation of VEGF-C expression by Six1. Using a different, but complementary animal model, we show that while required, VEGF-C is not sufficient for the pro-metastatic effects of Six1. Verifying the clinical significance of this pro-metastatic Six1-VEGF-C axis, we demonstrate co-expression of Six1 and VEGF-C in human breast cancer. Two Control and two Six1 expressing MCF7 clones were orthotopically injected into NOD/Scid mice forming a total of 3 Control and 3 Six1 tumors that were allowed to grow to 2 cm^3 . The tumors were dissected and total RNA was isolated from each tumor and hybridized to Affymetrix arrays

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sequencing data from control and PTEN-deficient mouse brain microvascular transcriptomes

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Expression data from Control and Six1 expressing MCF7 cells

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