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https://www.readbyqxmd.com/read/28633807/differential-induction-of-atf3-and-ho-1-in-myeloid-cells-and-keratinocytes-via-dimethylfumarate-or-cyclosporine-a
#1
Stefanie Müller, Nikola Smatlik, Marc Burian, Kamran Ghoreschi, Martin Röcken, Amir S Yazdi
BACKGROUND: Chronic inflammatory skin diseases are characterized by controlled proliferation of keratinocytes. Here, activating transcription factor 3 (ATF3) might play a fundamental role. In these inflammatory diseases, proliferation is controlled and only rarely leads to cancer development which can be supported by an inflammatory microenvironment. ATF3 is a dual function protein as it suppresses pro-inflammatory IL-6 and IL-8, but also acts as a pro-oncogenic factor by the suppression of p53...
June 12, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28611196/atf3-repression-of-bcl-xl-determines-apoptotic-sensitivity-tohdac-inhibitors-across-tumour-types
#2
Anderly C Chüeh, Janson Wt Tse, Michael Dickinson, Paul Ioannidis, Laura Jenkins, Lars Tögel, BeeShin Tan, Ian Luk, Mercedes Dávalos-Salas, Rebecca Nightingale, Matthew R Thompson, Bryan Rg Williams, Guillaume Lessene, Erinna F Lee, Walter D Fairlie, Amardeep S Dhillon, John M Mariadason
Purpose: Histone deacetylase inhibitors (HDACi) are epigenome-targeting small molecules approved for the treatment of cutaneous T cell lymphoma and multiple myeloma. They have also demonstrated clinical activity in AML, non-small cell lung cancer and estrogen receptor-positive breast cancer, and trials are underway assessing their activity in combination regimens including immunotherpy.  However, there is currently no clear strategy to reliably predict HDACi sensitivity. <p>In colon cancer cells, apoptotic sensitivity to HDACi is associated with transcriptional induction of multiple immediate-early (IE) genes...
June 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28595284/infertility-diagnosis-has-a-significant-impact-on-the-transcriptome-of-developing-blastocysts
#3
Blair R McCallie, Jason C Parks, Darren K Griffin, William B Schoolcraft, Mandy G Katz-Jaffe
STUDY QUESTION: Is the human blastocyst transcriptome associated with infertility diagnosis, specifically: polycystic ovaries (PCO), male factor (MF), and unexplained (UE)? SUMMARY ANSWER: The global blastocyst transcriptome was significantly altered in association with a PCO, MF, and UE infertility diagnosis. WHAT IS KNOWN ALREADY: Infertility diagnosis has an impact on the probability for a successful outcome following an IVF cycle. Limited information is known regarding the relationship between a specific infertility diagnosis and blastocyst transcription during pre-implantation development...
June 8, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28577574/activating-transcription-factor-3-promotes-embryo-attachment-via-up-regulation-of-leukemia-inhibitory-factor-in-vitro
#4
Xi Cheng, Jingyu Liu, Huizhi Shan, Lihua Sun, Chenyang Huang, Qiang Yan, Ruiwei Jiang, Lijun Ding, Yue Jiang, Jianjun Zhou, Guijun Yan, Haixiang Sun
BACKGROUND: A receptive endometrium is essential for maternal-embryonic molecular communication during implantation. However, the specific molecular regulatory mechanisms of the endometrial capacity remain poorly understood. Here, we examined activating transcription factor 3 (ATF3) expression in human endometria and the functional effect of ATF3 on embryo attachment in vitro. METHODS: Immunohistochemistry (IHC) was used to assess the ATF3 expression patterns in human endometria...
June 2, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28572744/berberine-regulates-the-protein-expression-of-multiple-tumorigenesis-related-genes-in-hepatocellular-carcinoma-cell-lines
#5
Tung-Yueh Chuang, Hsiao-Li Wu, Jie Min, Michael Diamond, Ricardo Azziz, Yen-Hao Chen
BACKGROUND: Hepatocellular carcinoma (HCC) is the seventh most common malignancy and the third leading cause of cancer-related death worldwide with an extremely grim prognosis. Berberine (BBR) has been found to inhibit proliferation of human HCC cells, although the underlying mechanism(s) are unclear. METHODS: Protein expression was detected by Western blots. Cell viability was determined by using the CellTiter Assay kit. RESULTS: We confirm that BBR treatment inhibits HepG2, Hep3B, and SNU-182 cell viability, and suggest that it regulates this proliferation via the modulation of multiple tumorigenesis-related genes protein expression...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28569783/damage-induced-neuronal-endopeptidase-dine-enhances-axonal-regeneration-potential-of-retinal-ganglion-cells-after-optic-nerve-injury
#6
Aoi Kaneko, Sumiko Kiryu-Seo, Sakiko Matsumoto, Hiroshi Kiyama
Damage-induced neuronal endopeptidase (DINE)/endothelin-converting enzyme-like 1 (ECEL1) is a membrane-bound metalloprotease that we identified as a nerve regeneration-associated molecule. The expression of DINE is upregulated in response to nerve injury in both the peripheral and central nervous systems, while its transcription is regulated by the activating transcription factor 3 (ATF3), a potent hub-transcription factor for nerve regeneration. Despite its unique hallmark of injury-induced upregulation, the physiological relevance of DINE in injured neurons has been unclear...
June 1, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28553505/discovery-of-a-small-molecule-targeting-ulk1-modulated-cell-death-of-triple-negative-breast-cancer-in-vitro-and-in-vivo
#7
Lan Zhang, Leilei Fu, Shouyue Zhang, Jin Zhang, Yuqian Zhao, Yaxin Zheng, Gu He, Shengyong Yang, Liang Ouyang, Bo Liu
UNC-51-like kinase 1 (ULK1) is well-known to initiate autophagy, and the downregulation of ULK1 has been found in most breast cancer tissues. Thus, the activation of ULK1-modulated autophagy could be a promising strategy for breast cancer therapy. In this study, we found that ULK1 was remarkably downregulated in breast cancer tissue samples by The Cancer Genome Atlas (TCGA) analysis and tissue microarray (TMA) analysis, especially in triple negative breast cancer (TNBC). To design a ULK1 agonist, we integrated in silico screening and chemical synthesis to acquire a series of small molecule candidates...
April 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28550532/drug-induced-hsp90-inhibition-alleviates-pain-in-monoarthritic-rats-and-alters-the-expression-of-new-putative-pain-players-at-the-drg
#8
Diana Sofia Marques Nascimento, Catarina Soares Potes, Miguel Luz Soares, António Carlos Ferreira, Marzia Malcangio, José Manuel Castro-Lopes, Fani Lourença Moreira Neto
Purinergic receptors (P2XRs) have been widely associated with pain states mostly due to their involvement in neuron-glia communication. Interestingly, we have previously shown that satellite glial cells (SGC), surrounding dorsal root ganglia (DRG) neurons, become activated and proliferate during monoarthritis (MA) in the rat. Here, we demonstrate that P2X7R expression increases in ipsilateral DRG after 1 week of disease, while P2X3R immunoreactivity decreases. We have also reported a significant induction of the activating transcriptional factor 3 (ATF3) in MA...
May 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28549990/early-transcriptome-responses-of-the-bovine-midcycle-corpus-luteum-to-prostaglandin-f2%C3%AE-includes-cytokine-signaling
#9
Heather Talbott, Xiaoying Hou, Fang Qiu, Pan Zhang, Chittibabu Guda, Fang Yu, Robert A Cushman, Jennifer R Wood, Cheng Wang, Andrea S Cupp, John S Davis
In ruminants, prostaglandin F2alpha (PGF2α)-mediated luteolysis is essential prior to estrous cycle resumption, and is a target for improving fertility. To deduce early PGF2α-provoked changes in the corpus luteum a short time-course (0.5-4 h) was performed on cows at midcycle. A microarray-determined transcriptome was established and examined by bioinformatic pathway analysis. Classic PGF2α effects were evident by changes in early response genes (FOS, JUN, ATF3) and prediction of active pathways (PKC, MAPK)...
May 23, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28548885/metformin-inhibits-p-gingivalis-lipopolysaccharide-lps-influenced-inflammatory-response-in-human-gingival-fibroblasts-via-regulating-activating-transcription-factor-3-atf3-expression
#10
Wenyan Kang, Ting Wang, Zhekai Hu, Feng Liu, Yundong Sun, Shaohua Ge
BACKGROUND: Chronic periodontitis is one of the most prevalent oral diseases, which is associated with Porphyromonas gingivalis (P. gingivalis) Lipopolysaccharide (LPS) infection, and has profound effects on type 2 diabetes mellitus (DM2). Metformin, a well-known antidiabetic agent, has been reported to exert anti-inflammatory effects on various cells. This study aimed to investigate the role of metformin on LPS-influenced inflammatory response in human gingival fibroblasts (HGFs). METHODS: Dose-dependent additive effects of metformin on LPS-influenced HGFs were detected...
May 26, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28546922/effect-of-atf3-deletion-on-apoptosis-of-cultured-retinal-ganglion-cells
#11
Ming-Ming Sun, Ya-Chen Wang, Yi Li, Xiao-Dan Guo, Yan-Ming Chen, Zhong-Zhi Zhang
AIM: To investigate the effect of activating transcription factor-3 (ATF3)-deletion on apoptosis of cultured retinal ganglion cells (RGCs). METHODS: Three ATF3 siRNA (ATF3-rat-651, ATF3-rat-319, ATF3-rat-520) were constructed, and were transiently transfected into RGC-5 cells. Quantitative real-time polymerase chain reaction (PCR) was used to examine ATF3 expression and the most effective ATF3 siRNA was selected for further studies. Flow cytometry was applied to investigate the effects of ATF3 deletion on RGC-5 apoptosis under elevated hydrostatic pressure...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28535568/tianeptine-reduces-mechanical-allodynia-in-spinal-nerve-ligated-and-chemotherapy-induced-neuropathic-mice
#12
Seong Min Han, Young Hoon Kim, Hyeon Uk Jo, Jung Ah Kwak, Hue Jung Park
BACKGROUND: Spinal nerve-ligated neuropathy and chemotherapy-induced neuropathy produce a persistent tactile allodynia in mice. Tianeptine is an antidepressant that exhibits structural similarities to tricyclic antidepressants but has distinct neurochemical properties. OBJECTIVE: Here we examined the effects of intraperitoneal (i.p.) tianeptine on allodynia in spinal nerve-ligated and chemotherapy-induced neuropathic mice. STUDY DESIGN: A randomized, experimental trial...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28533318/putting-the-brakes-on-hypertensive-remodeling-an-atf3-mechanism-of-myofibroblast-restraint
#13
EDITORIAL
Jennifer Davis
No abstract text is available yet for this article.
May 23, 2017: Circulation
https://www.readbyqxmd.com/read/28525989/determination-of-genetic-effects-of-atf3-and-cdkn1a-genes-on-milk-yield-and-compositions-in-chinese-holstein-population
#14
REVIEW
Bo Han, Weijun Liang, Lin Liu, Yanhua Li, Dongxiao Sun
BACKGROUND: Our previous RNA-sequencing study revealed that the ATF3 and CDKN1A genes were remarkably differentially expressed between the mammary glands of lactating Holstein cows with extremely high and low milk protein and fat percentage so that both of them were considered as candidates for milk composition. Herein, we further verified whether these genes have genetic effects on milk production traits in a Chinese Holstein cow population. RESULTS: By re-sequencing the entire coding and regulatory regions, we identified four SNPs in 5'promoter region, two in exons, seven in 3' un-translated region (UTR), and six in 3'flanking region of ATF3 gene, and one SNP in exon 5, two in 3'UTR, and two in 3'flanking region of CDKN1A gene...
May 19, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28522413/microglia-support-atf3-positive-neurons-following-hypoglossal-nerve-axotomy
#15
Tatsuhide Tanaka, Koichi Murakami, Yoshio Bando, Taichi Nomura, Ayami Isonishi, Shoko Morita-Takemura, Kouko Tatsumi, Akio Wanaka, Shigetaka Yoshida
Microglia are essential in developmental processes and maintenance of neuronal homeostasis. Experimental axotomy of motor neurons results in neurodegeneration, and microglia in motor nuclei become activated and migrate towards injured neurons. However, whether these activated microglia are protective or destructive to neurons remains controversial. In the present study, we transected the hypoglossal nerve in BALB/c mice, causing activating transcription factor 3 (ATF3) and growth associated protein 43 (GAP43) induction, and partial neuronal death...
May 15, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28522294/activating-transcription-factor-3-promotes-spinal-cord-regeneration-of-adult-zebrafish
#16
Lin-Fang Wang, Shu-Bing Huang, Hou-De Zhao, Chun-Jie Liu, Li Yao, Yan-Qin Shen
Zebrafish is an excellent model to study the mechanisms underlying successful central nervous system (CNS) regeneration. Previous study shows that activating transcription factor 3 (ATF3) promotes neurite outgrowth and is involved in optic nerve regeneration in zebrafish. Here, we used zebrafish model to investigate the role of ATF3 in regeneration following spinal cord injury (SCI). Quantitative polymerase chain reaction (qPCR) and in situ hybridization revealed that ATF3 mRNA levels increased at 12 h and 6 d following SCI...
May 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28511916/pre-treatment-with-amitriptyline-causes-epigenetic-up-regulation-of-neuroprotection-associated-genes-and-has-anti-apoptotic-effects-in-mouse-neuronal-cells
#17
Nguyen Quoc Vuong Tran, An Nghia Nguyen, Kyoko Takabe, Zentaro Yamagata, Kunio Miyake
Antidepressants, such as imipramine and fluoxetine, are known to alter gene expression patterns by inducing changes in the epigenetic status of neuronal cells. There is also some evidence for the anti-apoptotic effect of various groups of antidepressants; however, this effect is complicated and cell-type dependent. Antidepressants of the tricyclic group, in particular amitriptyline, have been suggested to be beneficial in the treatment of neurodegenerative disorders. We examined whether amitriptyline exerts an anti-apoptotic effect via epigenetic mechanisms...
May 13, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28475871/aging-triggers-cytoplasmic-depletion-and-nuclear-translocation-of-the-e3-ligase-mahogunin-a%C3%A2-function-for-ubiquitin-in-neuronal-survival
#18
Stefano Benvegnù, María Inés Mateo, Ernest Palomer, Jerónimo Jurado-Arjona, Carlos G Dotti
A decline in proteasome function is causally connected to neuronal aging and aging-associated neuropathologies. By using hippocampal neurons in culture and in vivo, we show that aging triggers a reduction and a cytoplasm-to-nucleus redistribution of the E3 ubiquitin ligase mahogunin (MGRN1). Proteasome impairment induces MGRN1 monoubiquitination, the key post-translational modification for its nuclear entry. One potential mechanism for MGRN1 monoubiquitination is via progressive deubiquitination at the proteasome of polyubiquitinated MGRN1...
May 4, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28468511/vitex-rotundifolia-fruit-extract-induces-apoptosis-through-the-downregulation-of-atf3-mediated-bcl-2-expression-in-human-colorectal-cancer-cells
#19
Hun Min Song, Gwang Hun Park, Jin Suk Koo, Hyung Jin Jeong, Jin Boo Jeong
Fruit from Vitex rotundifolia L. (VF) has been reported to initiate apoptosis in human colorectal cancer cells through the accumulation of reactive oxygen species. Since various regulatory factors are involved in the apoptotic pathway, further study of the potential mechanisms of VF associated with the induction of apoptosis may be important despite the fact that the molecular target of VF for apoptosis has already been elucidated. In this study, we showed a new potential mechanism for the relationship between VF-mediated ATF3 expression and apoptosis to better understand the apoptotic mechanism of VF in human colorectal cancer cells...
May 3, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28440917/atf3-inhibits-the-inflammation-induced-by-mycoplasma-pneumonia-in-vitro-and-in-vivo
#20
Jing Wang, Wei Cheng, Zhen Wang, Lihong Xin, Wen Zhang
OBJECTIVES: Activating transcription factor-3 (ATF3) is a key regulator of inflammatory responses. We aimed to investigate the effects and mechanisms of ATF3 on the inflammatory cytokines are induced by Mycoplasma pneumonia (MP). STUDY DESIGN: RAW264.7 and mouse peritoneal macrophages were exposed to various time with or without MP infection (3, 6, 12, 24, and 48 h), and detect the expression of ATF3. Adenovirus-expression of ATF3 (Ad/ATF3) or Ad/βgal was transfected into cells which were exposed to MP for 48 h, RT-PCR and ELISA was used to evaluate the expression and secretion of TNF-α, IL-1β, IL-6, and IL-18...
April 25, 2017: Pediatric Pulmonology
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