Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA225686 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Transcriptional profiling of human HER2-positive BT474 breast cancer cells comparing control untreated cancer cells with lapatinib-resistant clone established by chronic treatment with lapatinib Two-condition experiment, parental cells vs. lapatinib-resistant (LR) clone.
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Project description:Transcriptional profiling of human HER2-positive BT474 breast cancer cells comparing control untreated cancer cells with lapatinib-resistant clone established by chronic treatment with lapatinib
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Project description:These studies are aimed at understanding gene expression chnages in a Her2 positive breast cancer cell line that has developed acquired resistance to lapatinib. Samples include SKBR3 parental and resistant (SKBR3-R) under basal conditions and in response to 0.1 and 1uM lapatinib treatment after 24 hours.
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Project description:Human breast cancer SKBr-3 cells: trastuzumab-resistant vs. parental
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Project description:Ablation of ERRalpha significantly delays ERBB2-induced mammary tumorigenesis and ERRalpha regulates genes of the ERBB2 amplicon. To further investigate the relationship between ERRalpha activity and RTK signaling, we mapped ERRalpha binding sites in SKBr3 cells upon EGF treatment or heregulin treatment. Inhibition of ERBB2 signaling using the RTK inhibitor lapatinib impacts on ERRalpha stability, while cells resistant to lapatinib treatment exhibit restored ERRalpha expression. We therefore mapped ERRalpha binding sites in parental (sensitive) cells (pSKBr3) as well as in lapatinib-resistant cells (LRSKBr3). ChIP-Seq analysis of ERRalpha binding profile in SKBr3 or BT-474 breast cancer cells.
2016-06-15 | E-GEOD-81651 | biostudies-arrayexpress
Project description:Ablation of ERRalpha significantly delays ERBB2-induced mammary tumorigenesis and ERRalpha regulates genes of the ERBB2 amplicon. To further investigate the relationship between ERRalpha activity and RTK signaling, we depleted ERRalpha in SKBr3 cells upon serum starvation, EGF treatment or heregulin treatment. Inhibition of ERBB2 signaling using the RTK inhibitor lapatinib impacts on ERRalpha stability. Since we have shown that the development of lapatinib-resistance restaures the expression of ERRalpha in breast cancer cells, we performed depletion of ERRalpha in SKBr3 cells that have developped resistance to lapatinib treatment in order to identify a potential reprogramming of ERRa transcriptional activity associated to lapatinib resistance, For the study of growth factor effec on ERRalpha activity, total RNA was obtained from human SKBr3 breast cancer cells cultured in DMEM deprived of FBS (starved) for 24 hours and treated with PBS, EGF (100uM) or Heregulin (100uM) for an additional 24h. Cells were transfected with siRNA against ERRalpha or with siControl for 60 hours prior to harvesting. For the effect of ERRalpha in lapatinib resistance cells, parental SKBr3 cells (pSKBr3) and Lapatinib-resistant cells (LRSKBr3, maintained in 2uM lapatinib) were transfected with siControl (siC) or siERRalpha for 60 hours prior to harvesting and RNA extraction
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Project description:Genome wide DNA methylation profiling of parental, ABT-199 resistant population, and ABT-199 resistant clones from 3 acute myelogenous leukemia (AML) cell lines (MOLM-13, MV-4-11, OCI-AMLO2). The Illumina Infinium MethylationEPIC Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 850,000 CpGs from AML cell line samples. Samples include 4 ABT-199 sensitive parental MOLM-13 population samples, 4 ABT-199 resistant MOLM-13 population samples, 3 ABT-199 resistant MOLM-13 S2 clone samples, 3 ABT-199 resistant MOLM-13 S5 clone samples, 4 ABT-199 resistant MOLM-13 S6 clone samples, 3 ABT-199 sensitive parental MV-4-11 population samples, 3 ABT-199 resistant MV-4-11 population samples, 3 ABT-199 sensitive parental OCI-AML2 population samples, 3 ABT-199 resistant OCI-AML2 population samples, 3 ABT-199 resistant OCI-AML2 S1 clone samples, 3 ABT-199 resistant OCI-AML2 S2 clone samples, 3 ABT-199 resistant OCI-AML2 S8 clone samples.
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Project description:Tamoxifen-resistant human breast cancer cell lines
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Project description:Targeting HER2 with lapatinib (L), trastuzumab (T), or the LT combination, is effective in HER2+ breast cancer (BC), but de novo and acquired resistance commonly occur. The purpose of this experiment was to investigate the somatic alterations found in Lapatinib and/or Trastuzumab resistant cells lines.
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Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
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