Evaluating an Esr1-mutant novel cell population emerging upon ERα-antagonism by single RNA-seq
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ABSTRACT: To examine the effects of ERα antagonism (giredestrant) on Esr1-wildtype and Esr1-mutant mammary glands, animals were treated with hormone pellets (E2, P4), then dosed daily with vehicle (MCT) or giredestrant (30 mg/kg, p.o.) for four days. Following dosing, EpCAM+ cells were isolated and used for single cell sequencing. For each condition, cells from 2 animals were pooled for sequencing.
Project description:To examine the effects of ERα antagonism (giredestrant) on Esr1-wildtype and Esr1-mutant mammary glands, animals were treated with hormone pellets (E2, P4), then dosed daily with vehicle (MCT) or giredestrant (30 mg/kg, p.o.) for four days. Following dosing, individual mammary epithelial cell populations were FACS-isolated and sequenced.
Project description:To examine the effects of ERα antagonism (giredestrant) on Esr1-wildtype and Esr1-mutant mammary glands, animals were treated with hormone pellets (E2, P4), then dosed daily with vehicle (MCT) or giredestrant (30 mg/kg, p.o.) for four days. Following dosing, individual mammary epithelial cell populations were FACS-isolated and sequenced.
Project description:To examine the effects of ERα antagonism (giredestrant) on Esr1-wildtype and Esr1-mutant mammary glands, animals were treated with hormone pellets (E2, P4), then dosed daily with vehicle (MCT) or giredestrant (30 mg/kg, p.o.) for four days. Following dosing, individual mammary epithelial cell populations were FACS-isolated and sequenced. Rare giredestrant-induced novel cells (at least 1000 cells per sample) were collected from WT tissues and compared to mutant-induced novel cells.
Project description:To examine the effects of hormone stimulation on Esr1-wildtype and Esr1-mutant mammary glands, we will ovariectomize both wildtype and ER-mutant mice. Following ovariectomy (OVX), animals will be implanted with hormone pellets (either placebo, estrogen, and/or progesterone). Then, we perform RNA-seq on FACS-sorted mature luminal cells (ML) from mammary glands of treated mice. This analysis will allow for separation of ER mutant-intrinsic effects on gene expression vs. combinatorial effects from exposure to either estrogen or progesterone.
Project description:To understand the interactions between ER-alpha and PR interactions with chromatin in Esr1-wildtype versus mutant mammary cells, ChIP-seq was performed against both transcription factors. Animals were treated for four days with E2 and P4, then harvested for analysis.
Project description:adt06-01_esr1-drn_dexamethasone - esr1-drn - Identification of the target genes of the ESR1/DRN TF using dexamethasone induction - Identification of the target genes of the ESR1/DRN TF using dexamethasone induction Keywords: normal vs transgenic comparison 5 dye-swap - CATMA arrays
Project description:adt06-01_esr1-drn_dexamethasone - esr1-drn - Identification of the target genes of the ESR1/DRN TF using dexamethasone induction - Identification of the target genes of the ESR1/DRN TF using dexamethasone induction Keywords: normal vs transgenic comparison