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leukemia inhibitory factor

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https://www.readbyqxmd.com/read/28629464/mir-629-3p-may-serve-as-a-novel-biomarker-and-potential-therapeutic-target-for-lung-metastases-of-triple-negative-breast-cancer
#1
Jin Wang, Cailu Song, Hailin Tang, Chao Zhang, Jun Tang, Xing Li, Bo Chen, Xiaoming Xie
BACKGROUND: Different breast cancer subtypes show distinct tropisms for sites of metastasis. Notably, the lung is the most common site for the first distant recurrence in triple-negative breast cancer (TNBC). The identification of novel biomarkers for lung metastasis is of great importance to improving the outcome of TNBC. In this study, we sought to identify a microRNA (miRNA)-based biomarker and therapeutic target for lung metastasis of TNBC. METHODS: A total of 669 patients without de novo stage IV TNBC were recruited for this study...
June 19, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28629373/blimp-1-impairs-t-cell-function-via-upregulation-of-tigit-and-pd-1-in-patients-with-acute-myeloid-leukemia
#2
Liuluan Zhu, Yaxian Kong, Jianhong Zhang, David F Claxton, W Christopher Ehmann, Witold B Rybka, Neil D Palmisiano, Ming Wang, Bei Jia, Michael Bayerl, Todd D Schell, Raymond J Hohl, Hui Zeng, Hong Zheng
BACKGROUND: T cell immunoglobulin and immunoreceptor tyrosine-based inhibitory motif (ITIM) domain (TIGIT) and programmed cell death protein 1 (PD-1) are important inhibitory receptors that associate with T cell exhaustion in acute myeloid leukemia (AML). In this study, we aimed to determine the underlying transcriptional mechanisms regulating these inhibitory pathways. Specifically, we investigated the role of transcription factor B lymphocyte-induced maturation protein 1 (Blimp-1) in T cell response and transcriptional regulation of TIGIT and PD-1 in AML...
June 19, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28620096/interleukin-6-family-cytokines
#3
Stefan Rose-John
The interleukin (IL)-6 family cytokines is a group of cytokines consisting of IL-6, IL-11, ciliary neurotrophic factor (CNTF), leukemia inhibitory factor (LIF), oncostatin M (OSM), cardiotrophin 1 (CT-1), cardiotrophin-like cytokine (CLC), and IL-27. They are grouped into one family because the receptor complex of each cytokine contains two (IL-6 and IL-11) or one molecule (all others cytokines) of the signaling receptor subunit gp130. IL-6 family cytokines have overlapping but also distinct biologic activities and are involved among others in the regulation of the hepatic acute phase reaction, in B-cell stimulation, in the regulation of the balance between regulatory and effector T cells, in metabolic regulation, and in many neural functions...
June 15, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28611767/natural-killer-defective-maturation-is-associated-with-adverse-clinical-outcome-in-patients-with-acute-myeloid-leukemia
#4
Anne-Sophie Chretien, Cyril Fauriat, Florence Orlanducci, Claire Galseran, Jerome Rey, Gaelle Bouvier Borg, Emmanuel Gautherot, Samuel Granjeaud, Jean-François Hamel-Broza, Clemence Demerle, Norbert Ifrah, Catherine Lacombe, Pascale Cornillet-Lefebvre, Jacques Delaunay, Antoine Toubert, Emilie Gregori, Herve Luche, Marie Malissen, Christine Arnoulet, Jacques A Nunes, Norbert Vey, Daniel Olive
Accumulating evidence highlights natural killer (NK) cell parameters as potential prognostic factors in cancer patients, which provides a strong rationale for developing therapeutic strategies aiming at restoring NK cell. However, reaching this point warrants better characterization of tumor-induced NK cell alterations. Our group recently reported heterogeneous NK maturation in acute myeloid leukemia (AML) patients. However, the clinical significance of such observations remained to be assessed on a larger cohort of patients...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28577574/activating-transcription-factor-3-promotes-embryo-attachment-via-up-regulation-of-leukemia-inhibitory-factor-in-vitro
#5
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/28559116/uterine-er%C3%AE-epigenetic-modifications-are-induced-by-the-endocrine-disruptor-endosulfan-in-female-rats-with-impaired-fertility
#6
María M Milesi, Jorgelina Varayoud, Jorge G Ramos, Enrique H Luque
High ERα activity may disrupt the window of uterine receptivity, causing defective implantation. We investigated whether implantation failures prompted by endosulfan are associated with aberrant ERα uterine expression and DNA methylation status during the pre-implantation period. ERα-dependent target genes that play a crucial role in the uterine receptivity for embryo attachment and implantation were also investigated. Newborn female rats received corn oil (vehicle, Control), 6 μg/kg/d of endosulfan (Endo6) or 600 μg/kg/d of endosulfan (Endo600) on postnatal days (PND) 1, 3, 5, and 7...
May 27, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28552376/involvement-of-stat1-in-proliferation-and-invasiveness-of-trophoblastic-cells
#7
Francisco Lázaro Pereira de Sousa, Wittaya Chaiwangyen, Diana M Morales-Prieto, Stephanie Ospina-Prieto, Maja Weber, Stella M Photini, Nelson Sass, Silvia Daher, Ekkehard Schleussner, Udo R Markert
Trophoblast proliferation and invasion are controlled by cytokines and growth factors present at the implantation site. Members of the Interleukin-6 (IL-6) family of cytokines trigger their effects through activation of intracellular cascades including the Janus Kinase/Signal Transducer and Activator of Transcription (JAK-STAT) pathway. Functions of several STAT molecules in trophoblast cells have been described, but the role of STAT1 remained unclear. Here, potential functions of STAT1 and its activation by Oncostatin M (OSM) have been investigated in an in vitro model...
May 25, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28548937/nac1-promotes-self-renewal-of-embryonic-stem-cells-through-direct-transcriptional-regulation-of-c-myc
#8
Yan Ruan, Jianrong He, Wei Wu, Ping He, Yanping Tian, Lan Xiao, Gaoke Liu, Jiali Wang, Yuda Cheng, Shuo Zhang, Yi Yang, Jiaxiang Xiong, Ke Zhao, Ying Wan, He Huang, Junlei Zhang, Rui Jian
The pluripotency transcriptional network in embryonic stem cells (ESCs) is composed of distinct functional units including the core and Myc units. It is hoped that dissection of the cellular functions and interconnections of network factors will aid our understanding of ESC and cancer biology. Proteomic and genomic approaches have identified Nac1 as a member of the core pluripotency network. However, previous studies have predominantly focused on the role of Nac1 in psychomotor stimulant response and cancer pathogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28543818/bone-formation-is-coupled-to-resorption-via-suppression-of-sclerostin-expression-by-osteoclasts
#9
Masanori Koide, Yasuhiro Kobayashi, Teruhito Yamashita, Shunsuke Uehara, Midori Nakamura, B Yukihiro Hiraoka, Yuki Ozaki, Tadahiro Iimura, Hisataka Yasuda, Naoyuki Takahashi, Nobuyuki Udagawa
Bone formation is coupled to bone resorption throughout life. However, the coupling mechanisms are not fully elucidated. Using Tnfrsf11b-deficient (OPG(-/-) ) mice, in which bone formation is clearly coupled to bone resorption, we found here that osteoclasts suppress the expression of sclerostin, a Wnt antagonist, thereby promoting bone formation. Wnt/β-catenin signals were higher in OPG(-/-) and RANKL-transgenic mice with a low level of sclerostin. Conditioned medium from osteoclast cultures (Ocl-CM) suppressed sclerostin expression in UMR106 cells and osteocyte cultures...
May 24, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28537457/inhibition-of-mtor-kinase-as-a-therapeutic-target-for-acute-myeloid-leukemia
#10
Yoko Tabe, Agostino Tafuri, Kazumasa Sekihara, Haeun Yang, Marina Konopleva
Acute myeloid leukemia (AML), the most common acute leukemia in adults, remains a therapeutic challenge. The phosphatidylinositol 3-kinase/AKT/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway is one of the key aberrant intracellular axes involved in AML. Areas covered: mTOR plays a critical role in sensing and responding to environmental determinants such as nutrient availability, stress, and growth factor concentrations; and in modulating key cellular functions such as proliferation, metabolism, and survival...
June 9, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28536267/the-ubiquitin-ligase-stub1-regulates-stability-and-activity-of-runx1-and-runx1-runx1t1
#11
Taishi Yonezawa, Hirotaka Takahashi, Shiori Shikata, Xiaoxiao Liu, Moe Tamura, Shuhei Asada, Tsuyoshi Fukushima, Tomofusa Fukuyama, Yosuke Tanaka, Tatsuya Sawasaki, Toshio Kitamura, Susumu Goyama
RUNX1 is a member of RUNX transcription factors and plays important roles in hematopoiesis. Disruption of RUNX1 activity has been implicated in the development of hematopoietic neoplasms. Chromosomal translocations involving the RUNX1 gene are associated with several types of leukemia, including acute myeloid leukemia driven by a leukemogenic fusion protein RUNX1-RUNX1T1. Previous studies have shown that RUNX1 is an unstable protein and is subjected to proteolytic degradation mediated by the ubiquitin-proteasome pathway...
May 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28522567/myeloid-epithelial-crosstalk-coordinates-synthesis-of-the-tissue-protective-cytokine-leukemia-inhibitory-factor-during-pneumonia
#12
Katrina E Traber, Elise M Symer, Eri Allen, Yuri Kim, Kristie L Hilliard, Gregory A Wasserman, Colin L Stewart, Matthew R Jones, Joseph P Mizgerd, Lee Joseph Quinton
In bacterial pneumonia, lung damage resulting from epithelial cell injury is a major contributor to the severity of disease, and in some cases, can lead to long-term sequelae, especially in the setting of severe lung injury or ARDS. Leukemia inhibitory factor (LIF), a member of the IL-6 cytokine family, is a critical determinant of lung tissue protection during pneumonia, but the cellular sources of LIF and the signaling pathways leading to its production in the infected lung are not known. Here, we demonstrate that lung epithelium, specifically alveolar type II cells, is the predominant site of LIF transcript induction in pneumonic mouse lungs...
May 18, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28518115/analysis-of-retinoic-acid-induced-neural-differentiation-of-mouse-embryonic-stem-cells-in-two-and-three-dimensional-embryoid-bodies
#13
Junning Yang, Chuanshen Wu, Ioana Stefanescu, Arie Horowitz
Mouse embryonic stem cells (ESCs) isolated from the inner mass of the blastocyst (typically at day E3.5), can be used as in vitro model system for studying early embryonic development. In the absence of leukemia inhibitory factor (LIF), ESCs differentiate by default into neural precursor cells. They can be amassed into a three dimensional (3D) spherical aggregate termed embryoid body (EB) due to its similarity to the early stage embryo. EBs can be seeded on fibronectin-coated coverslips, where they expand by growing two dimensional (2D) extensions, or implanted in 3D collagen matrices where they continue growing as spheroids, and differentiate into the three germ layers: endodermal, mesodermal, and ectodermal...
April 22, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28513772/etanercept-protects-rat-cardiomyocytes-against-hypertrophy-by-regulating-inflammatory-cytokines-secretion-and-cell-apoptosis
#14
Q Li, Q Yu, R Na, B Liu
We aimed to investigate the effect of etanercept, a tumor necrosis factor-α (TNF-α) inhibitor, on rat cardiomyocyte hypertrophy and its underlying mechanism. Primary neonatal rat cardiomyocytes were isolated from Sprague-Dawley rats. The model of rat cardiomyocyte hypertrophy was induced by endothelin, and then treated with different concentrations of etanercept (1, 10, and 50 μM). After treatment, cell counts, viability and cell apoptosis were evaluated. The mRNA levels of myocardial hypertrophy marker genes, including atrial natriuretic factor (ANF), matrix metalloproteinase (MMP)-9 and MMP-13, were detected by qRT-PCR, and the expressions of apoptosis-related proteins (Bcl-2 and Bax) were measured by western blotting...
May 15, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28512205/phorbol-12-myristate-13-acetate-mediated-stabilization-of-leukemia-inhibitory-factor-lif-mrna-involvement-of-nucleolin-and-pcbp1
#15
Alina Chakraborty, Srimoyee Mukherjee, Sucharita Saha, Soumasree De, Sumita Sengupta Bandyopadhyay
LIF is a potent pleiotropic cytokine involved in diverse biological activities, thereby requiring precise spatial and temporal control of its expression. The present study reveals that enhanced expression of Leukemia Inhibitory Factor in response to PMA (phorbol-12-myristate-13-acetate) in human histiocytic lymphoma cell-line U937 largely happens through stabilization of its mRNA. Functional characterization of the long 3'-untranslated region (3'-UTR) of human lif -mRNA revealed several conserved sequences with conventional cis -acting elements...
May 16, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28512045/early-diagnosis-of-delayed-cerebral-ischemia-possible-relevance-for-inflammatory-biomarkers-in-routine-clinical-practice
#16
Bishwas Chamling, Stefan Gross, Birgit Stoffel-Wagner, Gerrit A Schubert, Hans Clusmann, Mark Coburn, Anke Höllig
BACKGROUND: Delayed cerebral ischemia (DCI) after subarachnoid hemorrhage (SAH) is one of the main causes of neurological deterioration. However, it frequently evades timely detection. Early identification and effective reversal may improve the clinical outcome. In this prospective study, we evaluate several serum inflammatory markers after aSAH with regard to the occurrence of DCI. METHODS: On days 1, 4, 7, 10 and 14 after SAH leucocyte count, C-reactive protein, interleukin-6, E-selectin, matrix metallopeptidase 9, intercellular adhesion molecule 1 and leukemia inhibitory factor were assessed in patients´ serum samples...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28505080/first-insights-into-human-fingertip-regeneration-by-echo-doppler-imaging-and-wound-microenvironment-assessment
#17
Paris Jafari, Camillo Muller, Anthony Grognuz, Lee Ann Applegate, Wassim Raffoul, Pietro G di Summa, Sébastien Durand
Fingertip response to trauma represents a fascinating example of tissue regeneration. Regeneration derives from proliferative mesenchymal cells (blastema) that subsequently differentiate into soft and skeletal tissues. Clinically, conservative treatment of the amputated fingertip under occlusive dressing can shift the response to tissue loss from a wound repair process towards regeneration. When analyzing by Immunoassay the wound exudate from occlusive dressings, the concentrations of brain-derived neurotrophic factor (BDNF) and leukemia inhibitory factor (LIF) were higher in fingertip exudates than in burn wounds (used as controls for wound repair versus regeneration)...
May 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28500787/corticosterone-primes-the-neuroinflammatory-response-to-gulf-war-illness-relevant-organophosphates-independently-of-acetylcholinesterase-inhibition
#18
Alicia R Locker, Lindsay T Michalovicz, Kimberly A Kelly, Julie V Miller, Diane B Miller, James P O'Callaghan
Gulf War Illness (GWI) is a chronic multi-symptom disorder affecting veterans of the 1991 Gulf War. Among the symptoms of GWI are those associated with sickness behavior, observations suggestive of underlying neuroinflammation. We have shown that exposure of mice to the stress hormone, corticosterone (CORT), and to diisopropyl fluorophosphate (DFP), as a nerve agent mimic, results in marked neuroinflammation, findings consistent with a stress/neuroimmune basis of GWI. Here, we examined the contribution of irreversible and reversible acetylcholinesterase (AChE) inhibitors to neuroinflammation in our mouse model of GWI...
May 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28484264/the-role-of-lnk-sh2b3-genetic-alterations-in-myeloproliferative-neoplasms-and-other-hematological-disorders
#19
REVIEW
N Maslah, B Cassinat, E Verger, J-J Kiladjian, L Velazquez
Malignant hematological diseases are mainly because of the occurrence of molecular abnormalities leading to the deregulation of signaling pathways essential for precise cell behavior. High-resolution genome analysis using microarray and large-scale sequencing have helped identify several important acquired gene mutations that are responsible for such signaling deregulations across different hematological malignancies. In particular, the genetic landscape of classical myeloproliferative neoplasms (MPNs) has been in large part completed with the identification of driver mutations (targeting the cytokine receptor/Janus-activated kinase 2 (JAK2) pathway) that determine MPN phenotype, as well as additional mutations mainly affecting the regulation of gene expression (epigenetics or splicing regulators) and signaling...
May 9, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28476645/withaferin-a-a-natural-compound-with-anti-tumor-activity-is-a-potent-inhibitor-of-transcription-factor-c-ebp%C3%AE
#20
Kim D Falkenberg, Anke Jakobs, Julian C Matern, Wolfgang Dörner, Sagar Uttarkar, Amke Trentmann, Simone Steinmann, Anna Coulibaly, Caroline Schomburg, Henning D Mootz, Thomas J Schmidt, Karl-Heinz Klempnauer
Recent work has shown that deregulation of the transcription factor Myb contributes to the development of leukemia and several other human cancers, making Myb and its cooperation partners attractive targets for drug development. By employing a myeloid Myb-reporter cell line we have identified Withaferin A (WFA), a natural compound that exhibits anti-tumor activities, as an inhibitor of Myb-dependent transcription. Analysis of the inhibitory mechanism of WFA showed that WFA is a significantly more potent inhibitor of C/EBPβ, a transcription factor cooperating with Myb in myeloid cells, than of Myb itself...
May 2, 2017: Biochimica et Biophysica Acta
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