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leukemia inhibitory factor

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https://www.readbyqxmd.com/read/29785640/switching-from-high-fat-diet-to-foods-containing-resveratrol-as-a-calorie-restriction-mimetic-changes-the-architecture-of-arcuate-nucleus-to-produce-more-newborn-anorexigenic-neurons
#1
Maryam Safahani, Hadi Aligholi, Farshid Noorbakhsh, Mahmoud Djalali, Hamideh Pishva, Sayed Mostafa Modarres Mousavi, Leila Alizadeh, Ali Gorji, Fariba Koohdani
PURPOSE: These days, obesity threatens the health for which one of the main interventions is calorie restriction (CR). Due to the difficulty of compliance with this treatment, CR mimetics such as resveratrol (RSV) have been considered. The present study compared the effects of RSV and CR on hypothalamic remodeling in a diet-switching experiment. METHODS: C57BL/6 male mice received high-fat diet (HFD) for 4 weeks, subsequently their diet switched to chow diet, HFD + RSV, chow diet + RSV or CR diet for a further 6 weeks...
May 21, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29779897/inductive-and-selective-effects-of-gsk3-and-mek-inhibition-on-nanog-heterogeneity-in-embryonic-stem-cells
#2
Simon Hastreiter, Stavroula Skylaki, Dirk Loeffler, Andreas Reimann, Oliver Hilsenbeck, Philipp S Hoppe, Daniel L Coutu, Konstantinos D Kokkaliaris, Michael Schwarzfischer, Konstantinos Anastassiadis, Fabian J Theis, Timm Schroeder
Embryonic stem cells (ESCs) display heterogeneous expression of pluripotency factors such as Nanog when cultured with serum and leukemia inhibitory factor (LIF). In contrast, dual inhibition of the signaling kinases GSK3 and MEK (2i) converts ESC cultures into a state with more uniform and high Nanog expression. However, it is so far unclear whether 2i acts through an inductive or selective mechanism. Here, we use continuous time-lapse imaging to quantify the dynamics of death, proliferation, and Nanog expression in mouse ESCs after 2i addition...
May 10, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29778974/metabolic-plasticity-during-transition-to-na%C3%A3-ve-like-pluripotency-in-canine-embryo-derived-stem-cells
#3
I C Tobias, R R Isaac, J G Dierolf, R Khazaee, R C Cumming, D H Betts
Pluripotent stem cells (PSCs) have been described in naïve or primed pluripotent states. Domestic dogs are useful translational models in regenerative medicine, but their embryonic stem cells (cESCs) remain narrowly investigated. Primed-like cESCs expanded in the presence of leukemia inhibitory factor and fibroblast growth factor 2 (LIF-FGF2) acquire features of naïve pluripotency when exposed to chemical inhibitors and LIF (2iL). However, proliferation of cESCs is influenced by the pluripotent state and is comparatively slower than human or mouse PSCs...
May 16, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29773599/tgf%C3%AE-1-mediated-functional-inhibition-of-mesenchymal-stromal-cells-in-myelodysplastic-syndromes-and-acute-myeloid-leukemia
#4
Stefanie Geyh, Manuel Rodríguez-Paredes, Paul Jäger, Annemarie Koch, Felix Bormann, Julian Gutekunst, Christoph Zilkens, Ulrich Germing, Guido Kobbe, Frank Lyko, Rainer Haas, Thomas Schroeder
Mesenchymal stromal cells are involved in the pathogenesis of myelodysplastic syndromes and acute myeloid leukemia, but the underlying mechanisms are incompletely understood. To further characterize the pathological phenotype we performed RNA sequencing of mesenchymal stromal cells from patients with myelodysplastic syndromes and acute myeloid leukemia revealing a specific molecular signature of genes commonly deregulated in myelodysplastic syndromes and acute myeloid leukemia. Pathway analysis showed a strong enrichment of genes related to osteogenesis, senescence, inflammation and inhibitory cytokines thereby reflecting the structural and functional deficits of mesenchymal stromal cells in myelodysplastic syndromes and acute myeloid leukemia on a molecular level...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29758321/production-of-soluble-bioactive-mouse-leukemia-inhibitory-factor-from-escherichia-coli-using-mbp-tag
#5
Yanan Guo, Miao Yu, Na Jing, Shoutao Zhang
Embryonic stem cells and induced pluripotent stem cells depend on one of cytokines called leukemia inhibitory factor (LIF) to retain their undifferentiated state and pluripotency. Nevertheless, further progresses of stem cell scientific investigation and its possible application are limited owing to the expense of commercial LIF. Here we introduced a simple, practical and high level expression of MBP-mouse LIF through Escherichia coli system which was bioactive. The mLIF cDNA was inserted into vector of pMAL-C2X in order to generate N-terminal MBP-mLIF recombinant proteins in the cytoplasm of Escherichia coli...
May 11, 2018: Protein Expression and Purification
https://www.readbyqxmd.com/read/29752696/total-saponins-of-rubus-parvifolius-l-exhibited-anti-leukemia-effect-in-vivo-through-stat3-and-eif4e-signaling-pathways
#6
Xiao-Feng Xu, Ru-Bin Cheng, Xue-Jin Zhang, Rui-Lan Gao
OBJECTIVE: To investigate the anti-leukemia effect of total saponins of Rubus parvifolius L. (TSRP) on K562 cell xenografts in nude mice and the mechanisms of action. METHODS: The K562 cell xenografts in nude mice were established, and then randomly divided into 5 groups, the control group, the cytosine arabinoside group(Ara-c) and 3 TSRP groups (20, 40 and 100 mg/kg). The tumor volume and mass of each group of nude mice were measured and the anti-tumor rates of TSRP were calculated subsequently...
May 11, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29751081/lifr-promotes-tumor-angiogenesis-by-up-regulating-il-8-levels-in-colorectal-cancer
#7
Hao-Xuan Wu, Xi Cheng, Xiao-Qian Jing, Xiao-Pin Ji, Xian-Ze Chen, Ya-Qi Zhang, Yong-Gang He, Kun Liu, Feng Ye, Han-Xing Sun, Hao-Ji Gao, Zi-Jia Song, Huo Wu, Xiao-Jian Zhang, Tao Zhang, Ren Zhao
Leukemia inhibitory factor receptor (LIFR) has been documented as a cancer promoter and to be present at high levels in various types of tumor tissues. In our search for molecules prognostic of colorectal cancer (CRC), we found high levels of LIFR in CRC tissue samples. Further analyses revealed that LIFR was indeed prognostic of CRC patient survival, and was associated with tumor size, lymphatic metastasis and stages. LIFR was found to promote tumor growth, metastasis and angiogenesis both in vitro and in vivo...
May 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29746601/aberrant-activity-of-nkl-homeobox-gene-nkx3-2-in-a-t-all-subset
#8
Stefan Nagel, Corinna Meyer, Maren Kaufmann, Margarete Zaborski, Roderick A F MacLeod, Hans G Drexler
T-cell acute lymphoblastic leukemia (T-ALL) is a hematopoietic malignancy originating from T-cell progenitors in which differentiation is blocked at early stages. Physiological expression of specific NKL homeobox genes obeys a hematopoietic NKL-code implicated in the process of lymphopoiesis while in differentiated T-cells these genes are silenced. We propose that this developmental expression pattern underlies the observation that NKL homeobox genes are the most ubiquitous group of transcription factors deregulated in T-ALL, including TLX1, TLX3, NKX2-5 and NKX3-1...
2018: PloS One
https://www.readbyqxmd.com/read/29741767/down-regulation-of-intracellular-anti-apoptotic-proteins-particularly-c-flip-by-therapeutic-agents-the-novel-view-to-overcome-resistance-to-trail
#9
REVIEW
Ali Hassanzadeh, Majid Farshdousti Hagh, Mohammad Reza Alivand, Ali Akbar Movassaghpour Akbari, Karim Shams Asenjan, Raedeh Saraei, Saeed Solali
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL or Apo2L) is a member of the tumor necrosis factor (TNF) superfamily that induces apoptosis in different types of cancer cells via activation of caspase cascade. TRAIL interacts with its cognate receptors that placed on cancer cells surface, including TRAIL-R1 (death receptor 4, DR4), TRAIL-R2 (death receptor 5, DR5), TRAIL-R3 (decoy receptor 1, DcR1), TRAIL-R4 (decoy receptor 2, DcR2), and osteoprotegerin (OPG). Despite high apoptosis-inducing ability of TRAIL, various cancerous cells gain resistance to TRAIL gradually, and consequently TRAIL potential for apoptosis stimulation in these cells diminishes intensely...
May 9, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29731749/adaptive-nkg2c-cd57-natural-killer-cell-and-tim-3-expression-during-viral-infections
#10
Hassen Kared, Serena Martelli, Shu Wen Tan, Yannick Simoni, Meng Li Chong, Siew Hwei Yap, Evan W Newell, Sylvia L F Pender, Adeeba Kamarulzaman, Reena Rajasuriar, Anis Larbi
Repetitive stimulation by persistent pathogens such as human cytomegalovirus (HCMV) or human immunodeficiency virus (HIV) induces the differentiation of natural killer (NK) cells. This maturation pathway is characterized by the acquisition of phenotypic markers, CD2, CD57, and NKG2C, and effector functions-a process regulated by Tim-3 and orchestrated by a complex network of transcriptional factors, involving T-bet, Eomes, Zeb2, promyelocytic leukemia zinc finger protein, and Foxo3. Here, we show that persistent immune activation during chronic viral co-infections (HCMV, hepatitis C virus, and HIV) interferes with the functional phenotype of NK cells by modulating the Tim-3 pathway; a decrease in Tim-3 expression combined with the acquisition of inhibitory receptors skewed NK cells toward an exhausted and cytotoxic phenotype in an inflammatory environment during chronic HIV infection...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29721979/m%C3%A3-ller-cell-biological-processes-associated-with-leukemia-inhibitory-factor-expression
#11
Marcus J Hooper, John D Ash
Müller cells provide support to photoreceptors under many conditions of stress and degeneration. Leukemia inhibitory factor is known to be expressed in Müller cells, which is necessary to promote photoreceptor survival in stress. We hypothesize that Müller cells that express LIF are undergoing other biological processes or functions which may benefit photoreceptors in disease. In this study, we analyze an existing single Müller cell microarray dataset to determine which processes are upregulated in Müller cells that express LIF, by correlating LIF expression to the expression of other genes using a robust correlation method...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29699374/inhibitory-effects-of-arsenic-trioxide-and-thalidomide-on-angiogenesis-and-vascular-endothelial-growth-factor-expression-in-leukemia-cells
#12
Mahnaz Mohammadi Kian, Saeed Mohammadi, Mahmoud Tavallaei, Bahram Chahardouli, Saharbano Rostami, Mahdi Zahedpanah, Ardeshir Ghavamzadeh, Mohsen Nikbakht
Acute myeloid leukemia (AML) is a blood disorder characterized by uncontrolled proliferation of myeloid progenitors and decrease in the apoptosis rate. The vascular endothelial growth factor (VEGF) promotes blood vessel regeneration which might play important roles in development and progression of neoplasia. Our previous studies focused on cytotoxicity and anticancer effects of arsenic trioxide (ATO) and thalidomide (THAL) as an anti-VEGF compound in the AML cell model. ATO also affects regulatory genes involved in cell proliferation and apoptosis...
April 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29696934/-research-progress-of-acupuncture-and-moxibustion-for-endometrial-receptivity-in-recent-10-years
#13
Zeqi Dai, Weiwei Sun, Ruihua Zhao
The research of acupuncture and moxibustion for endometrial receptivity in recent 10 years was reviewed. CNKI and PubMed databases were retrieved with "acupuncture" "moxibustion" and "endometrial receptivity" as key words. The retrieving time was from January of 2007 through December of 2016. As a result, 63 relevant papers were collected and 28 papers regarding clinical and experimental researches of acupuncture for endometrial receptivity were included into analysis. It was found that acupuncture and moxibustion could improve endometrial morphology (including the expression of pinopodes, endometrial thickness and the rate of endometrial type A), reduce the endometrial microcirculation (including endometrial pulsatility index, resistance index and hemodynamic index), increase the levels of estrogen and progesterone and the expressions of their receptors, and regulate the expression of molecular biological regulator (such as integrin, leukemia inhibitory factor, vascular endothelial growth factor and HOXA10)...
April 12, 2018: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29693144/preliminary-analysis-of-the-protein-profile-in-saliva-during-physiological-term-and-preterm-delivery
#14
Maciej Łopucki, Jacek Wawrzykowski, Tomasz Gęca, Andrzej Miturski, Monika Franczyk, Marta Kankofer
From a clinical point of view, easily obtainable and useful markers of a particular pathological status are required for appropriate diagnosis and treatment. Analysis of the proteomic profile of saliva may allow for the selection of potential marker of preterm delivery in humans. Saliva samples were collected from 12 patients diagnosed with threatened preterm delivery and 10 controls with uncomplicated pregnancies at the same gestational age. Samples were analysed using 2D electrophoresis. Based on statistical analysis, spots of interest were selected and collected from gels...
April 20, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29662664/regulation-of-the-antiapoptotic-protein-cflip-by-the-glucocorticoid-dexamethasone-in-all-cells
#15
Lara Kleinesudeik, Katharina Rohde, Simone Fulda
We recently reported that the Smac mimetic BV6 and glucocorticoids, e.g. Dexamethasone (Dexa), synergize to induce cell death in acute lymphoblastic leukemia (ALL) in vitro and in vivo . Here, we discover that this synergism involves Dexa-stimulated downregulation of cellular FLICE-like inhibitory protein (cFLIP) in ALL cells. Dexa rapidly decreases cFLIPL protein levels, which is further enhanced by addition of BV6. While attenuating the activation of non-canonical nuclear factor-kappaB (NF-κB) signaling by BV6, Dexa suppresses cFLIPL protein but not mRNA levels pointing to a transcription-independent downregulation of cFLIPL by Dexa...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29651431/hsp90-inhibition-reduces-tlr5-surface-expression-and-nf-%C3%AE%C2%BA-b-activation-in-human-myeloid-leukemia-thp-1-cells
#16
Bon Hyang Na, Thi Xoan Hoang, Jae Young Kim
Tumors highly express active heat shock protein 90 (Hsp90), which is involved in tumor survival and progression. Enhanced Toll-like receptor (TLR) 5 expression and signaling were reported to be associated with acute myeloid leukemia. In the present study, we investigated the possible modulatory effects of Hsp90 inhibitors on TLR5 expression and signaling in the human myeloid leukemia cell line THP-1. Cells were pretreated with various concentrations of the Hsp90 inhibitor geldanamycin (GA) or the Hsp70 inhibitor VER155008, followed by stimulation with bacterial flagellin...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29620271/mir%C3%A2-152-regulates-tgf%C3%A2-%C3%AE-1%C3%A2-induced-epithelial%C3%A2-mesenchymal-transition-by-targeting-hpip-in-tubular-epithelial-cells
#17
Ya-Xian Ning, Xiao-Yuan Wang, Jian-Qin Wang, Rong Zeng, Gou-Qin Wang
Renal fibrosis is a common pathological feature of chronic kidney diseases, and their development and progression are influenced by epigenetic modifications including aberrant microRNA (miRNA or miR) expression. miRNAs have been demonstrated to modulate the aggressiveness of various cancers and have emerged as possible therapeutic agents for the management of renal fibrosis. Transforming growth factor β1 (TGF‑β1)‑induced epithelial‑mesenchymal transition (EMT) of tubular epithelial cells serves a role in the initiation and progression of renal fibrosis...
April 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29620145/leukemia-inhibitory-factor-regulates-marmoset-induced-pluripotent-stem-cell-proliferation-via-a-pi3k-%C3%A2-akt%C3%A2-dependent-tbx%C3%A2-3-activation-pathway
#18
Minxia Ke, Quan He, Danping Hong, Ouyang Li, Mengyi Zhu, Wen-Bin Ou, Yulong He, Yuehong Wu
Leukemia inhibitory factor (LIF) is the most pleiotropic cytokine of the interleukin‑6 family, and is widely used to establish and maintain pluripotent stem cells, particularly mouse pluripotent stem cells. However, no reports have fully elucidated the application of LIF in marmoset induced pluripotent stem cell (iPSC) culture, particularly the underlying mechanisms. To demonstrate the feasibility of the application of LIF to marmoset iPSCs, the present study assessed these cells in the presence of LIF. Cell proliferation was measured using MTT assay, cell apoptosis was determined by flow cytometric analysis of fluorescein isothiocyanate Annexin V staining and the differentially expressed genes were analysed using Digital Gene Expression (DGE) analysis...
April 3, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29605252/mir-181c-3p-and-5p-promotes-high-glucose-induced-dysfunction-in-human-umbilical-vein-endothelial-cells-by-regulating-leukemia-inhibitory-factor
#19
Xinghua Shen, Yunling Li, Guizhi Sun, Dianlong Guo, Xiuping Bai
Diabetes mellitus is a chronic metabolic disease with high blood glucose level and closely related to endothelial dysfunction, an important factor in the pathogenesis of vascular changes. Several miRNAs have been reported to be altered in a diabetic environment including miR-181c. In the article, we found that the expression of miR-181c-3p and miR-181c-5p was significantly downregulated under glucose treatment in a dose-dependent manner and in peripheral blood from diabetic patients compared with healthy participants...
March 29, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29599503/zeb1-hdac2-enos-circuitry-identifies-early-cardiovascular-precursors-in-naive-mouse-embryonic-stem-cells
#20
Chiara Cencioni, Francesco Spallotta, Matteo Savoia, Carsten Kuenne, Stefan Guenther, Agnese Re, Susanne Wingert, Maike Rehage, Duran Sürün, Mauro Siragusa, Jacob G Smith, Frank Schnütgen, Harald von Melchner, Michael A Rieger, Fabio Martelli, Antonella Riccio, Ingrid Fleming, Thomas Braun, Andreas M Zeiher, Antonella Farsetti, Carlo Gaetano
Nitric oxide (NO) synthesis is a late event during differentiation of mouse embryonic stem cells (mESC) and occurs after release from serum and leukemia inhibitory factor (LIF). Here we show that after release from pluripotency, a subpopulation of mESC, kept in the naive state by 2i/LIF, expresses endothelial nitric oxide synthase (eNOS) and endogenously synthesizes NO. This eNOS/NO-positive subpopulation (ESNO+) expresses mesendodermal markers and is more efficient in the generation of cardiovascular precursors than eNOS/NO-negative cells...
March 29, 2018: Nature Communications
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