Dynamic transcriptional events mediated by estrogen receptor alpha

2019-01-01
Ayaz, Gamze
Yasar, Pelin
Olgun, Çağla Ece
Karakaya, Burcu
Kars, Gizem
Razizadeh, Negin
Yavuzl, Kerim
Turan, Gizem
Muyan, Mesut
17beta-estradiol (E2), the main circulating estrogen hormone, is involved in a wide variety of physiological functions ranging from the development to the maintenance of many tissues and organs. The effects of E2 on cells are primarily conveyed by the transcription factors, estrogen receptor (ER) alpha and beta. The regulation of responsive genes by the well-defined ER alpha in response to E2 relies on complex and highly organized processes that dynamically integrate functions of many transcription regulators to induce spatiotemporal alterations in chromatin state and structure. Changes in gene expressions result in cell-specific responses that include proliferation, differentiation and death. Deregulation of E2-ER alpha signaling contributes to the initiation and progression of target tissue malignancies. We aim here to provide a review of recent findings on dynamic transcriptional events mediated by E2-ER alpha with the anticipation that a better understanding of complex regulatory mechanisms underlying ER actions would be a critical basis for the development of effective prognostic tools for and therapeutic interventions against estrogen target tissue malignancies.
FRONTIERS IN BIOSCIENCE-LANDMARK

Suggestions

Epigenetic Mechanisms Underlying the Dynamic Expression of Cancer-Testis Genes, PAGE2, -2B and SPANX-B, during Mesenchymal-to-Epithelial Transition
Yilmaz-Ozcan, Sinem; Sade, Asli; Kucukkaraduman, Baris; Kaygusuz, Yasemin; Senses, Kerem Mert; Banerjee, Sreeparna; GÜRE, ALİ OSMAY (Public Library of Science (PLoS), 2014-09-17)
Cancer-testis (CT) genes are expressed in various cancers but not in normal tissues other than in cells of the germline. Although DNA demethylation of promoter-proximal CpGs of CT genes is linked to their expression in cancer, the mechanisms leading to demethylation are unknown. To elucidate such mechanisms we chose to study the Caco-2 colorectal cancer cell line during the course of its spontaneous differentiation in vitro, as we found CT genes, in particular PAGE2, -2B and SPANX-B, to be up-regulated duri...
Molecular mechanism of estrogen-estrogen receptor signaling.
Yaşar, P; Ayaz, G; User, Sd; Güpür, G; Muyan, Mesut (2016-12-05)
17 beta-Estradiol (E2), as the main circulating estrogen hormone, regulates many tissue and organ functions in physiology. The effects of E2 on cells are mediated by the transcription factors and estrogen receptor (ER)alpha and ER beta that are encoded by distinct genes. Localized at the pen-membrane, mitochondria, and the nucleus of cells that are dependent on estrogen target tissues, the ERs share similar, as well as distinct, regulatory potentials. Different intracellular localizations of the ERs result ...
Protein characterization of human YPEL2 and YPEL homolog yeast MOH1
Olgun, Çağla Ece; Muyan, Mesut; Department of Molecular Biology and Genetics (2018)
17ß-estradiol (E2), the main circulating estrogen hormone, has an important role in the physiological and pathophysiological regulation of many tissues and organs including breast tissue. Regulation of cell proliferation, differentiation and death in target tissues is mediated by E2. The estrogen receptor (ER), a transcription factor, provides the lasting effect of E2 on cells via regulation of targeting gene expression. Previous microarray and gene expression studies in our laboratory reveal that YPEL2, wh...
The regulation of the CXXC5 gene expression
Yaşar, Pelin; Muyan, Mesut; Department of Molecular Biology and Genetics (2021-1-19)
17β-estradiol (E2) is the main circulating estrogen hormone in the body and is involved in the physiological and pathophysiological regulation of various tissue notably mammary tissue functions. E2 is responsible for cellular proliferation, differentiation, and/or death in target tissues. Our previous microarray studies suggested that expression of CXXC5 is regulated by E2-ERα through ERE-dependent signaling pathway and I verified that the CXXC5 transcript levels are augmented in response to E2. As a member...
Impaired toll like receptor-7 and 9 induced immune activation in chronic spinal cord injured patients contributes to immune dysfunction
Gucluler, Gozde; Adiguzel, Emre; Gungor, Bilgi; Kahraman, Tamer; Gürsel, Mayda; Yilmaz, Bilge; GÜRSEL, İHSAN (Public Library of Science (PLoS), 2017-02-07)
Reduced immune activation or immunosuppression is seen in patients withneurological diseases. Urinary and respiratory infections mainly manifested as septicemia and pneumonia are the most frequent complications following spinal cord injuries and they account for the majority of deaths. The underlying reason of these losses is believed to arise due to impaired immune responses to pathogens. Here, we hypothesized that susceptibility to infections of chronic spinal cord injured (SCI) patients might be due to i...
Citation Formats
G. Ayaz et al., “Dynamic transcriptional events mediated by estrogen receptor alpha,” FRONTIERS IN BIOSCIENCE-LANDMARK, pp. 245–276, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38312.