Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR28293165_1.fastq.gz | Fastqsanger.gz | |||
| SRR28293165_2.fastq.gz | Fastqsanger.gz | |||
| SRR28293166_1.fastq.gz | Fastqsanger.gz | |||
| SRR28293166_2.fastq.gz | Fastqsanger.gz | |||
| SRR28293167_1.fastq.gz | Fastqsanger.gz |
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Project description:Basal-like and luminal breast tumors have distinct clinical behavior and molecular profiles, yet the underlying mechanisms are poorly defined. To interrogate processes that determine these distinct phenotypes and their inheritance pattern, we generated somatic cell fusions and performed integrated genetic and epigenetic (DNA methylation and chromatin) profiling. We found that the basal-like trait is generally dominant and it is largely defined by epigenetic repression of luminal transcription factors. Definition of super-enhancers highlighted a core program common in luminal cells but high degree of heterogeneity in basal-like breast cancers that correlates with clinical outcome. We also found that protein extracts of basal-like cells is sufficient to induce luminal-to-basal phenotypic switch implying a trigger of basal-like autoregulatory circuits. We determined that KDM6A might be required for luminal-basal fusions, and identified EN1, TBX18, and TCF4 as candidate transcriptional regulators of luminal-to-basal switch. Our findings highlight the remarkable epigenetic plasticity of breast cancer cells. Examination of histone H3K27me3 modifications in various breast cancer cell lines.
2015-06-10 | E-GEOD-38789 | biostudies-arrayexpress
Project description:Basal-like and luminal breast tumors have distinct clinical behavior and molecular profiles, yet the underlying mechanisms are poorly defined. To interrogate processes that determine these distinct phenotypes and their inheritance pattern, we generated somatic cell fusions and performed integrated genetic and epigenetic (DNA methylation and chromatin) profiling. We found that the basal-like trait is generally dominant and it is largely defined by epigenetic repression of luminal transcription factors. Definition of super-enhancers highlighted a core program common in luminal cells but high degree of heterogeneity in basal-like breast cancers that correlates with clinical outcome. We also found that protein extracts of basal-like cells is sufficient to induce luminal-to-basal phenotypic switch implying a trigger of basal-like autoregulatory circuits. We determined that KDM6A might be required for luminal-basal fusions, and identified EN1, TBX18, and TCF4 as candidate transcriptional regulators of luminal-to-basal switch. Our findings highlight the remarkable epigenetic plasticity of breast cancer cells. Examination of histone H3K27Ac modifications in various breast cancer cell lines.
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Project description:The goal of this study was to identify chromatin regulatory sites by FAIRE-seq under conditions of basal and increased dosage of transcription factor SF-1 in the H295R human adrenocortical tumor cell line. 4 samples: input DNA in basal SF-1 expression conditions - FAIRE-seq in basal SF-1 expression conditions - input DNA in SF-1 overexpression conditions - FAIRE-seq in SF-1 overexpression conditions
2013-08-01 | E-GEOD-44221 | biostudies-arrayexpress
Project description:The goal of this study was to identify genomic binding sites of the SF-1 nuclear receptor under conditions of basal and increased dosage in the H295R human adrenocortical tumor cell line. 14 samples: input DNA (2 replicates) - SF-1 ChIP Millipore antibody basal SF-1 dosage (3 replicates) - SF-1 ChIP Millipore antibody increased SF-1 dosage (3 replicates) - SF-1 ChIP Perseus antibody basal SF-1 dosage (3 replicates) - SF-1 ChIP Perseus antibody increased SF-1 dosage (3 replicates)
2013-08-01 | E-GEOD-44220 | biostudies-arrayexpress
Project description:Basal-like and luminal breast tumors have distinct clinical behavior and molecular profiles, yet the underlying mechanisms are poorly defined. To interrogate processes that determine these distinct phenotypes and their inheritance pattern, we generated somatic cell fusions and performed integrated genetic and epigenetic (DNA methylation and chromatin) profiling. We found that the basal-like trait is generally dominant and it is largely defined by epigenetic repression of luminal transcription factors. Definition of super-enhancers highlighted a core program common in luminal cells but high degree of heterogeneity in basal-like breast cancers that correlates with clinical outcome. We also found that protein extracts of basal-like cells is sufficient to induce luminal-to-basal phenotypic switch implying a trigger of basal-like autoregulatory circuits. We determined that KDM6A might be required for luminal-basal fusions, and identified EN1, TBX18, and TCF4 as candidate transcriptional regulators of luminal-to-basal switch. Our findings highlight the remarkable epigenetic plasticity of breast cancer cells.
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2015-06-10 | GSE38788 | GEO
Project description:Basal-like and luminal breast tumors have distinct clinical behavior and molecular profiles, yet the underlying mechanisms are poorly defined. To interrogate processes that determine these distinct phenotypes and their inheritance pattern, we generated somatic cell fusions and performed integrated genetic and epigenetic (DNA methylation and chromatin) profiling. We found that the basal-like trait is generally dominant and it is largely defined by epigenetic repression of luminal transcription factors. Definition of super-enhancers highlighted a core program common in luminal cells but high degree of heterogeneity in basal-like breast cancers that correlates with clinical outcome. We also found that protein extracts of basal-like cells is sufficient to induce luminal-to-basal phenotypic switch implying a trigger of basal-like autoregulatory circuits. We determined that KDM6A might be required for luminal-basal fusions, and identified EN1, TBX18, and TCF4 as candidate transcriptional regulators of luminal-to-basal switch. Our findings highlight the remarkable epigenetic plasticity of breast cancer cells.
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