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Jmjd3 signalling

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https://www.readbyqxmd.com/read/28894299/dhea-inhibits-acute-microglia-mediated-inflammation-through-activation-of-the-trka-akt1-2-creb-jmjd3-pathway
#1
V I Alexaki, G Fodelianaki, A Neuwirth, C Mund, A Kourgiantaki, E Ieronimaki, K Lyroni, M Troullinaki, C Fujii, W Kanczkowski, A Ziogas, M Peitzsch, S Grossklaus, B Sönnichsen, A Gravanis, S R Bornstein, I Charalampopoulos, C Tsatsanis, T Chavakis
Dehydroepiandrosterone (DHEA) is the most abundant circulating steroid hormone in humans, produced by the adrenals, the gonads and the brain. DHEA was previously shown to bind to the nerve growth factor receptor, tropomyosin-related kinase A (TrkA), and to thereby exert neuroprotective effects. Here we show that DHEA reduces microglia-mediated inflammation in an acute lipopolysaccharide-induced neuro-inflammation model in mice and in cultured microglia in vitro. DHEA regulates microglial inflammatory responses through phosphorylation of TrkA and subsequent activation of a pathway involving Akt1/Akt2 and cAMP response element-binding protein...
September 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28890349/molecular-hydrogen-modulates-gene-expression-via-histone-modification-and-induces-the-mitochondrial-unfolded-protein-response
#2
Sayaka Sobue, Chisato Inoue, Fumiko Hori, Shanlou Qiao, Takashi Murate, Masatoshi Ichihara
Molecular hydrogen (H2) is a biologically active gas that is used medically to ameliorate various systemic pathological conditions. H2 also regulates gene expression involved in intracellular signaling and metabolic pathways. However, it is unclear whether H2 affects gene expression directly or through indirect effects as a consequence of health improvement. Therefore, we attempted to identify genes that exhibit similar changes in expression in response to H2 by employing DNA microarrays and gene set enrichment analysis to analyze RNA from liver and lung of rats and mice with or without dietary stress...
September 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28743103/lanthanum-chloride-inhibits-lps-mediated-expressions-of-pro-inflammatory-cytokines-and-adhesion-molecules-in-huvecs-involvement-of-nf-%C3%AE%C2%BAb-jmjd3-signaling
#3
Xia Chen, Min Xiu, Juanjuan Xing, Shaoqing Yu, Dinghong Min, Fei Guo
BACKGROUND/AIMS: To investigate the regulation of LaCl3 on lipopolysaccharides (LPS)-induced pro-inflammatory cytokines and adhesion molecules in human umbilical vein endothelial cells (HUVECs). METHODS: Primary cultured HUVECs were pretreated with 2.5 µM LaCl3 for 30 min followed by 1 µg/ml LPS for 2 h. Pro-inflammatory cytokine and adhesion molecule expressions were determined by real-time RT-PCR and ELISA. NF-κB/p65 nuclear translocation was examined by immunofluorescence and immuno-blot, and its DNA-binding activity was measured by chemiluminescence...
July 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28630932/differential-intron-retention-in-jumonji-chromatin-modifier-genes-is-implicated-in-reptile-temperature-dependent-sex-determination
#4
Ira W Deveson, Clare E Holleley, James Blackburn, Jennifer A Marshall Graves, John S Mattick, Paul D Waters, Arthur Georges
In many vertebrates, sex of offspring is determined by external environmental cues rather than by sex chromosomes. In reptiles, for instance, temperature-dependent sex determination (TSD) is common. Despite decades of work, the mechanism by which temperature is converted into a sex-determining signal remains mysterious. This is partly because it is difficult to distinguish the primary molecular events of TSD from the confounding downstream signatures of sexual differentiation. We use the Australian central bearded dragon, in which chromosomal sex determination is overridden at high temperatures to produce sex-reversed female offspring, as a unique model to identify TSD-specific features of the transcriptome...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28509866/hdac8-prevents-anthrax-lethal-toxin-induced-cell-cycle-arrest-through-silencing-pten-in-human-monocytic-thp-1-cells
#5
Soon-Duck Ha, Woohyun Cho, Sung Ouk Kim
Anthrax lethal toxin (LeTx) is a cytotoxic virulence factor that causes cell cycle arrest and cell death in various cell types. However, susceptibility to the cytotoxic effects varies depending on cell types. In proliferating monocytes, LeTx has only transient cytotoxic effects due to activation of the phosphoinositide 3-kinase (PI3K)-AKT-mediated adaptive responses. To date, the mechanism of LeTx in activating PI3K-AKT signaling axis is unknown. This study shows that the histone deacetylase 8 (HDAC8) is involved in activating PI3K-AKT signaling axis through down-regulating the phosphatase and tensin homolog 1 (PTEN) in human monocytic THP-1 cells...
May 16, 2017: Toxins
https://www.readbyqxmd.com/read/28487543/kdm6b-modulates-mapk-pathway-mediating-multiple-myeloma-cell-growth-and-survival
#6
H Ohguchi, T Harada, M Sagawa, S Kikuchi, Y-T Tai, P G Richardson, T Hideshima, K C Anderson
Recent studies have delineated cancer-type-specific roles of histone 3 lysine 27 (H3K27) demethylase KDM6B/JMJD3 depending on its H3K27 demethylase activity. Here we show that KDM6B is expressed in multiple myeloma (MM) cells; and that shRNA-mediated knockdown and CRISPR-mediated knockout of KDM6B abrogate MM cell growth and survival. Tumor necrosis factor-α or bone marrow stromal cell culture supernatants induce KDM6B, which is blocked by IKKβ inhibitor MLN120B, suggesting that KDM6B is regulated by NF-κB signaling in MM cells...
May 10, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28323958/jmjd3-is-crucial-for-the-female-avpv-rip-cre-neuron-controlled-kisspeptin-estrogen-feedback-loop-and-reproductive-function
#7
Anying Song, Shujun Jiang, Qinghua Wang, Jianghuan Zou, Zhaoyu Lin, Xiang Gao
The hypothalamic-pituitary-gonadal axis controls development, reproduction, and metabolism. Although most studies have focused on the hierarchy from the brain to the gonad, many questions remain unresolved concerning the feedback from the gonad to the central nervous system, especially regarding the potential epigenetic modifications in hypothalamic neurons. In the present report, we generated genetically modified mice lacking histone H3 lysine 27 (H3K27) demethylase Jumonji domain-containing 3 (JMJD3) in hypothalamic rat-insulin-promoter-expressing neurons (RIP-Cre neurons)...
June 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28188179/new-insights-into-the-role-of-jmjd3-and-utx-in-axial-skeletal-formation-in-mice
#8
Chie Naruse, Shinwa Shibata, Masaru Tamura, Takayuki Kawaguchi, Kanae Abe, Kazushi Sugihara, Tomoaki Kato, Takumi Nishiuchi, Shigeharu Wakana, Masahito Ikawa, Masahide Asano
Jmjd3 and Utx are demethylases specific for lysine 27 of histone H3. Previous reports indicate that Jmjd3 is essential for differentiation of various cell types, such as macrophages and epidermal cells in mice, whereas Utx is involved in cancer and developmental diseases in humans and mice, as well as Hox regulation in zebrafish and nematodes. Here, we report that Jmjd3, but not Utx, is involved in axial skeletal formation in mice. A Jmjd3 mutant embryo (Jmjd3(Δ18/Δ18)), but not a catalytically inactive Utx truncation mutant (Utx(-/y)), showed anterior homeotic transformation...
June 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27532872/musashi-mediated-expression-of-jmjd3-a-h3k27me3-demethylase-is-involved-in-foamy-macrophage-generation-during-mycobacterial-infection
#9
Sahana Holla, Praveen Prakhar, Vikas Singh, Anupama Karnam, Tanushree Mukherjee, Kasturi Mahadik, Pankti Parikh, Amit Singh, R S Rajmani, Subbaraya G Ramachandra, Kithiganahalli Narayanaswamy Balaji
Foamy macrophages (FM)s harbor lipid bodies that not only assist mycobacterial persistence within the granulomas but also are sites for intracellular signaling and inflammatory mediators which are essential for mycobacterial pathogenesis. However, molecular mechanisms that regulate intracellular lipid accumulation in FMs during mycobacterial infection are not clear. Here, we report for the first time that jumonji domain containing protein (JMJD)3, a demethylase of the repressive H3K27me3 mark, orchestrates the expression of M...
August 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27456830/role-of-serum-amyloid-a-granulocyte-macrophage-colony-stimulating-factor-and-bone-marrow-granulocyte-monocyte-precursor-expansion-in-segmented-filamentous-bacterium-mediated-protection-from-entamoeba-histolytica
#10
Stacey L Burgess, Mahmoud Saleh, Carrie A Cowardin, Erica Buonomo, Zannatun Noor, Koji Watanabe, Mayuresh Abhyankar, Stephane Lajoie, Marsha Wills-Karp, William A Petri
Intestinal segmented filamentous bacteria (SFB) protect from ameba infection, and protection is transferable with bone marrow dendritic cells (BMDCs). SFB cause an increase in serum amyloid A (SAA), suggesting that SAA might mediate SFB's effects on BMDCs. Here we further explored the role of bone marrow in SFB-mediated protection. Transient gut colonization with SFB or SAA administration alone transiently increased the H3K27 histone demethylase Jmjd3, persistently increased bone marrow Csf2ra expression and granulocyte monocyte precursors (GMPs), and protected from ameba infection...
October 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27133168/two-conserved-histone-demethylases-regulate-mitochondrial-stress-induced-longevity
#11
Carsten Merkwirth, Virginija Jovaisaite, Jenni Durieux, Olli Matilainen, Sabine D Jordan, Pedro M Quiros, Kristan K Steffen, Evan G Williams, Laurent Mouchiroud, Sarah U Tronnes, Virginia Murillo, Suzanne C Wolff, Reuben J Shaw, Johan Auwerx, Andrew Dillin
Across eukaryotic species, mild mitochondrial stress can have beneficial effects on the lifespan of organisms. Mitochondrial dysfunction activates an unfolded protein response (UPR(mt)), a stress signaling mechanism designed to ensure mitochondrial homeostasis. Perturbation of mitochondria during larval development in C. elegans not only delays aging but also maintains UPR(mt) signaling, suggesting an epigenetic mechanism that modulates both longevity and mitochondrial proteostasis throughout life. We identify the conserved histone lysine demethylases jmjd-1...
May 19, 2016: Cell
https://www.readbyqxmd.com/read/27102442/jmjd3-promotes-survival-of-diffuse-large-b-cell-lymphoma-subtypes-via-distinct-mechanisms
#12
Yan Zhang, Long Shen, Dwayne G Stupack, Nan Bai, Jing Xun, Guosheng Ren, Jihong Han, Luyuan Li, Yunping Luo, Rong Xiang, Xiaoyue Tan
JMJD3 (Jumonji domain containing-3), a histone H3 Lys27 (H3K27) demethylase, has been reported to be involved in the antigen-driven differentiation of germinal center B-cells. However, insight into the mechanism of JMJD3 in DLBCL (Diffuse large B-cell lymphoma) progression remains poorly understood. In this study, we investigated the subtype-specific JMJD3-dependent survival effects in DLBCL. Our data showed that in the ABC subtype, silencing-down of JMJD3 inhibited interferon regulatory factor 4 (IRF4) expression in a demethylase activity-dependent fashion...
May 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/26699812/cu-zn-superoxide-dismutase-mediated-redox-regulation-of-jumonji-domain-containing-3-modulates-macrophage-polarization-and-pulmonary-fibrosis
#13
Chao He, Jennifer L Larson-Casey, Linlin Gu, Alan J Ryan, Shubha Murthy, A Brent Carter
M2 macrophages are implicated in the development of pulmonary fibrosis as they generate profibrotic signals. The polarization process, at least in part, is regulated by epigenetic modulation. Because Cu,Zn-superoxide dismutase-induced H2O2 can polarize macrophages to a profibrotic M2 phenotype, we hypothesized that modulation of the redox state of the cell is involved in the epigenetic modulation of the macrophage phenotype. In this study, we show that signal transducer and activator of transcription 6 (STAT6) regulates Jumonji domain containing (Jmjd) 3, a histone H3 lysine 27 demethylase, and mutation of a redox-sensitive cysteine in STAT6 attenuates jmjd3 expression...
July 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/26399931/epigenetic-modulation-in-periodontitis-interaction-of-adiponectin-and-jmjd3-irf4-axis-in-macrophages
#14
Dongying Xuan, Qianqian Han, Qisheng Tu, Lan Zhang, Liming Yu, Dana Murry, Tianchi Tu, Yin Tang, Jane B Lian, Gary S Stein, Paloma Valverde, Jincai Zhang, Jake Chen
Emerging evidence suggests an important role for epigenetic mechanisms in modulating signals during macrophage polarization and inflammation. JMJD3, a JmjC family histone demethylase necessary for M2 polarization is also required for effective induction of multiple M1 genes by lipopolysaccharide (LPS). However, the effects of JMJD3 to inflammation in the context of obesity remains unknown. To address this deficiency, we firstly examined the expression of JMJD3 in macrophage isolated from bone marrow and adipose tissue of diet induced obesity (DIO) mice...
May 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/25843056/selective-inhibition-of-prostaglandin-e2-receptors-ep2-and-ep4-modulates-dna-methylation-and-histone-modification-machinery-proteins-in-human-endometriotic-cells
#15
Joe A Arosh, JeHoon Lee, Anna Starzinski-Powitz, Sakhila K Banu
Endometriosis is an inflammatory gynecological disease of reproductive-age women. The prevalence of endometriosis is 5-10% in reproductive-age women. Modern medical treatments are directed to inhibit the action of estrogen in endometriotic cells. However, hormonal therapies targeting estrogen can be prescribed only for a short time because of their undesirable side effects. Recent studies from our laboratory, using human endometriotic epithelial cell line 12Z and stromal cell line 22B derived from red lesion, discovered that selective inhibition of prostaglandin E2 (PGE2) receptors EP2 and EP4 inhibits adhesion, invasion, growth, and survival of 12Z and 22B cells by modulating integrins, MMPs and TIMPs, cell cycle, survival, and intrinsic apoptotic pathways, suggesting multiple epigenetic mechanisms...
July 5, 2015: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/25370275/an-epigenetic-switch-induced-by-shh-signalling-regulates-gene-activation-during-development-and-medulloblastoma-growth
#16
Xuanming Shi, Zilai Zhang, Xiaoming Zhan, Mou Cao, Takashi Satoh, Shizuo Akira, Karl Shpargel, Terry Magnuson, Qingtian Li, Rongfu Wang, Chaochen Wang, Kai Ge, Jiang Wu
The Sonic hedgehog (Shh) signalling pathway plays important roles during development and in cancer. Here we report a Shh-induced epigenetic switch that cooperates with Gli to control transcription outcomes. Before induction, poised Shh target genes are marked by a bivalent chromatin domain containing a repressive histone H3K27me3 mark and an active H3K4me3 mark. Shh activation induces a local switch of epigenetic cofactors from the H3K27 methyltransferase polycomb repressive complex 2 (PRC2) to an H3K27me3 demethylase Jmjd3/Kdm6b-centred coactivator complex...
November 5, 2014: Nature Communications
https://www.readbyqxmd.com/read/24925089/histone-demethylase-jumonji-d3-jmjd3-kdm6b-at-the-nexus-of-epigenetic-regulation-of-inflammation-and-the-aging-process
#17
REVIEW
Antero Salminen, Kai Kaarniranta, Mikko Hiltunen, Anu Kauppinen
Histone methylation is involved in the epigenetic control of immune responses and cellular senescence. Jumonji domain-containing protein 3 (JMJD3), also called lysine-specific demethylase 6B (KDM6b), is an inducible histone demethylase which enhances immune responses and can trigger cellular senescence. JMJD3 potentiates gene expression by demethylating repressive H3K27me3 epigenetic marks in promoters and gene bodies. Moreover, JMJD3 also stimulates transcription in a demethylase-independent manner by mediating interactions between chromatin modifiers...
October 2014: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/24646476/the-localization-of-histone-h3k27me3-demethylase-jmjd3-is-dynamically-regulated
#18
Yasunao F Kamikawa, Mary E Donohoe
Jmjd3 is required for cellular differentiation and senescence, and inhibits the induction of pluripotent stem cells by demethylating histone 3 lysine 27 trimethylation (H3K27me3). Although recent studies reveal crucial biological roles for Jmjd3, it is unclear how its demethylase activity is controlled. Here, we show that nuclear localization of Jmjd3 is required for effective demethylation of H3K27me3. Our subcellular localization analysis of Jmjd3 shows that the N-terminal region of the protein is responsible for its nuclear placement, whereas the C-terminal region harboring the catalytic Jumonji C (JmjC) domain cannot situate into the nucleus...
June 2014: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/24500110/linking-stat-and-tlr-signaling-in-microglia-a-new-role-for-the-histone-demethylase-jmjd3
#19
COMMENT
Uwe-Karsten Hanisch
No abstract text is available yet for this article.
March 2014: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/24097101/the-signal-transducers-stat1-and-stat3-and-their-novel-target-jmjd3-drive-the-expression-of-inflammatory-genes-in-microglia
#20
Piotr Przanowski, Michal Dabrowski, Aleksandra Ellert-Miklaszewska, Michal Kloss, Jakub Mieczkowski, Beata Kaza, Anna Ronowicz, Feng Hu, Arkadiusz Piotrowski, Helmut Kettenmann, Jan Komorowski, Bozena Kaminska
UNLABELLED: Most neurological diseases are associated with chronic inflammation initiated by the activation of microglia, which produce cytotoxic and inflammatory factors. Signal transducers and activators of transcription (STATs) are potent regulators of gene expression but contribution of particular STAT to inflammatory gene expression and STAT-dependent transcriptional networks underlying brain inflammation need to be identified. In the present study, we investigated the genomic distribution of Stat binding sites and the role of Stats in the gene expression in lipopolysaccharide (LPS)-activated primary microglial cultures...
March 2014: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
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