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Epigenetic remodelling of enhancers in response to estrogen deprivationand re-stimulation.
Sklias Athena et al.
Estrogen hormones are implicated in a majority of breast cancers and estrogen receptor alpha (ER), the main nuclear factor mediating estrogen signaling, orchestrates a complex molecular circuitry that is not yet fully elucidated. Here, we investigated genome-wide DNA methylation, histone acetylation and transcriptio...
Estrogen induces dynamic ERα and RING1B recruitment to control gene and enhancer activities in luminal breast cancer
Zhang Yusheng, Chan Ho Lam, Garcia-Martinez Liliana, Karl Daniel L., Weich Natalia, Slingerland Joyce M., Verdun Ramiro E., Morey Lluis
RING1B, a core Polycomb repressive complex 1 subunit, is a histone H2A ubiquitin ligase essential for development. RING1B is overexpressed in patients with luminal breast cancer (BC) and recruited to actively transcribed genes and enhancers co-occupied by the estrogen receptor (ER). Whether ER-induced transcript...
Identification of ChIP-seq and RIME grade antibodies for Estrogen Receptor alpha.
Glont SE, Papachristou EK, Sawle A, Holmes KA, Carroll JS, Siersbaek R
Estrogen Receptor alpha (ERα) plays a major role in most breast cancers, and it is the target of endocrine therapies used in the clinic as standard of care for women with breast cancer expressing this receptor. The two methods ChIP-seq (chromatin immunoprecipitation coupled with deep sequencing) and RIME (Rapi...
The oestrogen receptor alpha-regulated lncRNA NEAT1 is a critical modulator of prostate cancer.
Chakravarty D, Sboner A, Nair SS, Giannopoulou E, Li R, Hennig S, Mosquera JM, Pauwels J, Park K, Kossai M, MacDonald TY, Fontugne J, Erho N, Vergara IA, Ghadessi M, Davicioni E, Jenkins RB, Palanisamy N, Chen Z, Nakagawa S, Hirose T, Bander NH, Beltran H
The androgen receptor (AR) plays a central role in establishing an oncogenic cascade that drives prostate cancer progression. Some prostate cancers escape androgen dependence and are often associated with an aggressive phenotype. The oestrogen receptor alpha (ERα) is expressed in prostate cancers, independent of AR ...
Estrogen receptor ligands ameliorate fatty liver through a nonclassical estrogen receptor/Liver X receptor pathway in mice.
Han SI, Komatsu Y, Murayama A, Steffensen KR, Nakagawa Y, Nakajima Y, Suzuki M, Oie S, Parini P, Vedin LL, Kishimoto H, Shimano H, Gustafsson JÅ, Yanagisawa J
UNLABELLED: Liver X receptor (LXR) activation stimulates triglyceride (TG) accumulation in the liver. Several lines of evidence indicate that estradiol-17β (E2) reduces TG levels in the liver; however, the molecular mechanism underlying the E2 effect remains unclear. Here, we show that administration of E2 attenuate...
Functional Genomic Methods to Study Estrogen Receptor Activity.
Gilfillan S, Fiorito E, Hurtado A
Estrogen Receptor (ER) is a nuclear receptor that mediates the actions of estrogen and tamoxifen. ER is expressed in a major fraction of human breast cancers. Recently, genomic maps for estrogen- and tamoxifen-ER have been published. Interestingly, estrogen and tamoxifen induce similar genomic interactions and both ...
ChIP-Seq of ERalpha and RNA polymerase II defines genes differentially responding to ligands.
Welboren WJ, van Driel MA, et al.,
We used ChIP-Seq to map ERa-binding sites and to profile changes in RNA polymerase II (RNAPII) occupancy in MCF-7 cells in response to estradiol (E2), tamoxifen or fulvestrant. We identify 10 205 high confidence ERa-binding sites in response to E2 of which 68% contain an estrogen response element (ERE) and only 7% c...