keyword
MENU ▼
Read by QxMD icon Read
search

Glucocorticoid receptor ( GR )

keyword
https://www.readbyqxmd.com/read/28644985/depressive-like-behavior-is-elevated-among-offspring-of-parents-exposed-to-dim-light-at-night-prior-to-mating
#1
Yasmine M Cissé, Kathryn L G Russart, Randy J Nelson
Rates of major depressive disorder (MDD) have steadily increased over the past 50 years. Many factors have been implicated in the etiology of depressive disorders and environmental influences are being increasingly recognized. The increase in depression rates has coincided with increased artificial nighttime lighting. Exposure to light at night (LAN) has been associated with increased depressive-like behavior in rodents and decreased mood in humans. However, relatively little is known on the multigenerational effects of dLAN on affect...
June 12, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28638383/non-canonical-glucocorticoid-receptor-transactivation-of-gilz-by-alcohol-suppresses-cell-inflammatory-response
#2
Hang Pong Ng, Scott Jennings, Jack Wang, Patricia E Molina, Steve Nelson, Guoshun Wang
Acute alcohol exposure suppresses cell inflammatory response. The underlying mechanism has not been fully defined. Here we report that alcohol was able to activate glucocorticoid receptor (GR) signaling in the absence of glucocorticoids (GCs) and upregulated glucocorticoid-induced leucine zipper (gilz), a prominent GC-responsive gene. Such a non-canonical activation of GR was not blocked by mifepristone, a potent GC competitor. The proximal promoter of gilz, encompassing five GC-responsive elements (GREs), was incorporated and tested in a luciferase reporter system...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28634266/30-years-of-the-mineralocorticoid-receptor-the-brain-mineralocorticoid-receptor-a-saga-in-three-episodes
#3
REVIEW
Marian Joëls, E Ronald de Kloet
In 1968, Bruce McEwen discovered that (3)H-corticosterone administered to adrenalectomised rats is retained in neurons of hippocampus rather than those of hypothalamus. This discovery signalled the expansion of endocrinology into the science of higher brain regions. With this in mind, our contribution highlights the saga of the brain mineralocorticoid receptor (MR) in three episodes. First, the precloning era dominated by the conundrum of two types of corticosterone-binding receptors in the brain, which led to the identification of the high-affinity corticosterone receptor as the 'promiscuous' MR cloned in 1987 by Jeff Arriza and Ron Evans in addition to the classical glucocorticoid receptor (GR)...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28629846/hippocampal-gr-and-cb1-mediated-mglur5-differentially-produces-susceptibility-and-resilience-to-acute-and-chronic-mild-stress-in-rats
#4
Hongli Sun, Rujuan Su, Xiaoxiao Zhang, Jun Wen, Dan Yao, Xinru Gao, Zhongliang Zhu, Hui Li
The molecular mechanism of individual response of susceptibility and resilience under psychological stress remains controversial and unclear. The present study aimed to explore the relationship of metabotropic glutamate receptor 5 (mGluR5) with glucocorticoid receptor (GR) or cannabinoid receptor (CB1) and further indicate the molecular mechanism of susceptibility and resilience to acute stress (AS) and chronic mild stress (CMS). Sucrose preference test and open field test were used to evaluate the response of susceptibility and resilience under stress in rats...
June 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28620462/immunoprofiling-of-human-uterine-mast-cells-identifies-three-phenotypes-and-expression-of-er%C3%AE-and-glucocorticoid-receptor
#5
Bianca De Leo, Arantza Esnal-Zufiaurre, Frances Collins, Hilary O D Critchley, Philippa T K Saunders
Background: Human mast cells (MCs) are long-lived tissue-resident immune cells characterised by granules containing the proteases chymase and/or tryptase. Their phenotype is modulated by their tissue microenvironment. The human uterus has an outer muscular layer (the myometrium) surrounding the endometrium, both of which play an important role in supporting a pregnancy. The endometrium is a sex steroid target tissue consisting of epithelial cells (luminal, glandular) surrounded by a multicellular stroma, with the latter containing an extensive vascular compartment as well as fluctuating populations of immune cells that play an important role in regulating tissue function...
2017: F1000Research
https://www.readbyqxmd.com/read/28618657/antidepressive-effects-of-ginsenoside-rg1-via-regulation-of-hpa-and-hpg-axis
#6
Zheng Mou, Qian Huang, Shi-Feng Chu, Mei-Jin Zhang, Jin-Feng Hu, Nai-Hong Chen, Jun-Tian Zhang
BACKGROUND: Hypothalamic-pituitary-adrenal (HPA) axis hyperactivity is a well-established pathological feature of major depression, accompanied by the persistent increase of glucocorticoid level and the dysfunction of hypothalamic-pituitary-gonadal (HPG) axis. Ginsenoside Rg1 (Rg1) is one of the most active ingredients of Panax ginseng, which has various biological activity. OBJECTIVE: This study aimed to investigate the antidepressive effects of Rg1 and elucidate its impact on neuroendocrine system...
June 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28615290/a-post-translational-modification-switch-controls-coactivator-function-of-histone-methyltransferases-g9a-and-glp
#7
Coralie Poulard, Danielle Bittencourt, Dai-Ying Wu, Yixin Hu, Daniel S Gerke, Michael R Stallcup
Like many transcription regulators, histone methyltransferases G9a and G9a-like protein (GLP) can act gene-specifically as coregulators, but mechanisms controlling this specificity are mostly unknown. We show that adjacent post-translational methylation and phosphorylation regulate binding of G9a and GLP to heterochromatin protein 1 gamma (HP1γ), formation of a ternary complex with the glucocorticoid receptor (GR) on chromatin, and function of G9a and GLP as coactivators for a subset of GR target genes. HP1γ is recruited by G9a and GLP to GR binding sites associated with genes that require G9a, GLP, and HP1γ for glucocorticoid-stimulated transcription...
June 14, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28611094/agonist-specific-protein-interactomes-of-glucocorticoid-and-androgen-receptor-as-revealed-by-proximity-mapping
#8
Joanna K Lempiäinen, Einari A Niskanen, Kaisa-Mari Vuoti, Riikka E Lampinen, Helka Göös, Markku Varjosalo, Jorma J Palvimo
Glucocorticoid receptor (GR) and androgen receptor (AR) are steroid-inducible transcription factors (TFs). GR and AR are central regulators of various metabolic, homeostatic and differentiation processes and hence important therapeutic targets, especially in inflammation and prostate cancer, respectively. Hormone binding to these steroid receptors (SRs) leads to DNA binding and activation or repression of their target genes with the aid of interacting proteins, coregulators. However, protein interactomes of these important drug targets have remained poorly defined...
June 13, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28607630/antioxidant-treatment-induces-hyperactivation-of-the-hpa-axis-by-upregulating-acth-receptor-in-the-adrenal-and-downregulating-glucocorticoid-receptors-in-the-pituitary
#9
Jessika P Prevatto, Rafael C Torres, Bruno L Diaz, Patrícia M R E Silva, Marco A Martins, Vinicius F Carvalho
Glucocorticoid (GC) production is physiologically regulated through a negative feedback loop mediated by the GC, which appear disrupted in several pathological conditions. The inability to perform negative feedback of the hypothalamus-pituitary-adrenal (HPA) axis in several diseases is associated with an overproduction of reactive oxygen species (ROS); however, nothing is known about the effects of ROS on the functionality of the HPA axis during homeostasis. This study analyzed the putative impact of antioxidants on the HPA axis activity and GC-mediated negative feedback upon the HPA cascade...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28605710/chronic-dexamethasone-treatment-results-in-hippocampal-neurons-injury-due-to-activate-nlrp1-inflammasome-in-vitro
#10
Biqiong Zhang, Yaodong Zhang, Tanzhen Xu, Yanyan Yin, Rongrong Huang, Yuchan Wang, Junyan Zhang, Dake Huang, Weizu Li
Neuroinflammation mediated by NLRP-1 inflammasome plays an important role in the pathogenesis of neurodegeneration diseases such as Alzheimer's disease (AD). Chronic glucocorticoids (GCs) exposure has deleterious effect on the structure and function of neurons and was found to be correlated with development and progression of AD. We hypothesize that chronic glucocorticoids may down-regulate the expression of glucocorticoids receptor (GR) and activate NLRP-1 inflammasome in hippocampal neurons, which may promote neuroinflammation and induce neuronal injury...
June 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28598247/a-long-range-flexible-billboard-model-of-gene-activation
#11
Christopher M Vockley, Ian C McDowell, Antony M D'Ippolito, Timothy E Reddy
Gene regulation is fundamentally important for the coordination of diverse biological processes including homeostasis and responses to developmental and environmental stimuli. Transcription factor (TF) binding sites are one of the major functional subunits of gene regulation. They are arranged in cis-regulatory modules (CRMs) that can be more active than the sum of their individual effects. Recently, we described a mechanism of glucocorticoid (GC)-induced gene regulation in which the glucocorticoid receptor (GR) binds coordinately to multiple CRMs that are 10s of kilobases apart in the genome...
June 9, 2017: Transcription
https://www.readbyqxmd.com/read/28591827/tethering-not-required-the-glucocorticoid-receptor-binds-directly-to-activator-protein-1-recognition-motifs-to-repress-inflammatory-genes
#12
Emily R Weikum, Ian Mitchelle S de Vera, Jerome C Nwachukwu, William H Hudson, Kendall W Nettles, Douglas J Kojetin, Eric A Ortlund
The glucocorticoid receptor (GR) is a ligand-regulated transcription factor that controls the expression of extensive gene networks, driving both up- and down-regulation. GR utilizes multiple DNA-binding-dependent and -independent mechanisms to achieve context-specific transcriptional outcomes. The DNA-binding-independent mechanism involves tethering of GR to the pro-inflammatory transcription factor activator protein-1 (AP-1) through protein-protein interactions. This mechanism has served as the predominant model of GR-mediated transrepression of inflammatory genes...
June 7, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28591825/corticotrophin-releasing-hormone-and-corticosterone-impair-development-of-preimplantation-embryos-by-inducing-oviductal-cell-apoptosis-via-activating-the-fas-system-an-in-vitro-study
#13
Xiu-Wen Tan, Chang-Li Ji, Liang-Liang Zheng, Jie Zhang, Hong-Jie Yuan, Shuai Gong, Jiang Zhu, Jing-He Tan
STUDY QUESTION: What are the mechanisms by which corticotrophin-releasing hormone (CRH) and corticosterone impair the development of preimplantation embryos in the oviduct. SUMMARY ANSWER: CRH and corticosterone do not affect preimplantation embryos directly, but impair their development indirectly by triggering apoptosis of oviductal epithelial cells (OECs) through activation of the Fas system. WHAT IS KNOWN ALREADY: Studies report that stress impairs embryo development with facilitated secretion of CRH and glucocorticoids...
June 7, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28589149/dexamethasone-modulates-nonvisual-opsins-glucocorticoid-receptor-and-clock-genes-in-danio-rerio-zem-2s-cells
#14
Jennifer Caroline Sousa, Keila Karoline Magalhães-Marques, Sanseray da Silveira Cruz-Machado, Maria Nathalia Moraes, Ana Maria de Lauro Castrucci
Here we report, for the first time, the differential cellular distribution of two melanopsins (Opn4m1 and Opn4m2) and the effects of GR agonist, dexamethasone, on the expression of these opsins and clock genes, in the photosensitive D. rerio ZEM-2S embryonic cells. Immunopositive labeling for Opn4m1 was detected in the cell membrane whereas Opn4m2 labeling shows nuclear localization, which did not change in response to light. opn4m1, opn4m2, gr, per1b, and cry1b presented an oscillatory profile of expression in LD condition...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28588443/differential-gr-expression-and-translocation-in-the-hippocampus-mediates-susceptibility-vs-resilience-to-chronic-social-defeat-stress
#15
Qiu-Qin Han, Liu Yang, Hui-Jie Huang, Ya-Lin Wang, Rui Yu, Jing Wang, Adam Pilot, Gen-Cheng Wu, Qiong Liu, Jin Yu
While social stress exposure is a common risk factor for affective disorders, most individuals exposed to it can maintain normal physical and psychological functioning. However, factors that determine susceptibility vs. resilience to social stress remain unclear. Here, the resident-intruder model of social defeat was used as a social stressor in male C57BL/6J mice to investigate the difference between susceptibility and resilience. As depression is often characterized by hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis, we conducted the present study to further investigate the individual differences in the HPA axis response and glucocorticoid receptor (GR) protein expression and translocation between susceptible mice and resilient mice...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28585089/combination-of-cationic-dexamethasone-derivative-and-stat3-inhibitor-wp1066-for-aggressive-melanoma-a-strategy-for-repurposing-a-phase-i-clinical-trial-drug
#16
Samaresh Sau, Sujan Kumar Mondal, Sushil K Kashaw, Arun K Iyer, Rajkumar Banerjee
Glucocorticoid, such as dexamethasone (Dex) is often used along with chemotherapy to antagonize side effects of chemotherapy. However, sustained use of Dex frequently develops drug resistance in patients. As a strategy to re-induce drug sensitivity, we planned to modify Dex by chemically conjugating it with twin ten carbon aliphatic chain containing cationic lipid. The resultant molecule, DX10, inhibited STAT3 activation through lowering the production of IL-6. To enhance the STAT3 inhibitory effect of DX10, we used WP (a commercially available STAT3 inhibitor) along with DX10...
June 5, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28582465/differential-regulation-of-cell-death-pathways-by-the-microenvironment-correlates-with-chemoresistance-and-survival-in-leukaemia
#17
Malak Yahia Qattan, Emyr Yosef Bakker, Ramkumar Rajendran, Daphne Wei-Chen Chen, Vaskar Saha, Jizhong Liu, Leo Zeef, Jean-Marc Schwartz, Luciano Mutti, Constantinos Demonacos, Marija Krstic-Demonacos
Glucocorticoids (GCs) and topoisomerase II inhibitors are used to treat acute lymphoblastic leukaemia (ALL) as they induce death in lymphoid cells through the glucocorticoid receptor (GR) and p53 respectively. Mechanisms underlying ALL cell death and the contribution of the bone marrow microenvironment to drug response/resistance remain unclear. The role of the microenvironment and the identification of chemoresistance determinants were studied by transcriptomic analysis in ALL cells treated with Dexamethasone (Dex), and Etoposide (Etop) grown in the presence or absence of bone marrow conditioned media (CM)...
2017: PloS One
https://www.readbyqxmd.com/read/28580390/glucocorticoid-receptor-mediated-cis-repression-of-osteogenic-genes-requires-brm-swi-snf
#18
Michael J Pico, Sharareh Hashemi, Fuhua Xu, Kevin Hong Nguyen, Robert Donnelly, Elizabeth Moran, Stephen Flowers
Glucocorticoids are an effective therapy for a variety of severe inflammatory and autoimmune disorders; however, the therapeutic use of glucocorticoids is severely limited by their negative side effects, particularly on osteogenesis. Glucocorticoids regulate transcription by binding to the glucocorticoid receptor (GR), which then binds the promoters of target genes to induce either activation or repression. The gene activation effects of nuclear hormone receptors broadly require the cooperation of the chromatin remodeling complex known as SWI/SNF, which is powered by an ATPase core...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28579944/impaired-spinal-glucocorticoid-receptor-signaling-contributes-to-the-attenuating-effect-of-depression-on-mechanical-allodynia-and-thermal-hyperalgesia-in-rats-with-neuropathic-pain
#19
Xiao Wei, Yuqi Sun, Fei Luo
Although depression-induced altered pain perception has been described in several laboratory and clinical studies, its neurobiological mechanism in the central nervous system (CNS), particularly in the spinal dorsal horn, remains unclear. Therefore, in this study, we aimed to clarify whether nociceptive sensitivity of neuropathic pain is altered in the olfactory bulbectomy (OB) model of depression and whether glucocorticoid receptor (GR), which is involved in the etio-pathologic mechanisms of both major depression and neuropathic pain, contributes to these processes in the spinal dorsal horn of male Sprague-Dawley rats...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28577990/the-regulation-of-corticosteroid-receptors-in-response-to-chronic-social-defeat
#20
Jia Zhang, Yan Fan, Muhammad U Raza, Yanqiang Zhan, Xiang-Dong Du, Paresh D Patel, Meng-Yang Zhu
Our previous studies demonstrated that chronic social defeat (CSD) up-regulated expression of the serotonin transporter (SERT) and norepinephrine transporter (NET) in the brain, which was mediated by corticosteroid receptors. In the present study we first analyzed the alterations of corticosteroid receptors in different brain regions after the CSD paradigm. The results showed that CSD significantly reduced glucocorticoid receptor (GR) protein levels in the CA1 and dentate gyrus of the hippocampus, as well as in central and basolateral nuclei of the amygdala, which was accompanied by the translocation of GR from cytoplasm to nuclei...
May 31, 2017: Neurochemistry International
keyword
keyword
64265
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"