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leukemia inhibitory factor

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https://www.readbyqxmd.com/read/28101351/pro-inflammatory-effect-of-a-traditional-chinese-medicine-formula-with-potent-anti-cancer-activity-in-vitro-impedes-tumor-inhibitory-potential-in-vivo
#1
Lei Xia, Maksym Plachynta, Tangjingjun Liu, Xiao Xiao, Jialei Song, Xiaogang Li, Mu Zhang, Yao Yao, Heng Luo, Xiaojiang Hao, Yaacov Ben-David
Medicinal formulas are a part of the complex discipline of traditional Chinese medicine that has been used for centuries in China and East Asia. These formulas predominantly consist of the extracts isolated from herbal plants, animal parts and medicinal minerals. The present study aimed to investigate the impact of 150 formulas, used as non-prescription drugs in China, on the treatment of cancer. A formula was identified, C54, commonly used to treat sore throats, which exhibited marked growth inhibition in vitro, associated with cell cycle arrest and apoptosis...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28098879/cytokines-inducers-and-inhibitors-modulate-mmp-2-and-mmp%C3%A2-9-secretion-by-human-fanconi-anemia-immortalized-fibroblasts
#2
M W Roomi, T Kalinovsky, M Rath, A Niedzwiecki
Acute myeloid leukemia and head and neck squamous cell carcinomas are the major causes of mortality and morbidity in Fanconi anemia (FA) patients. Matrix metalloproteinases (MMPs), particularly MMP-2 and MMP-9, have been implicated in tumor invasion and metastasis. Various cytokines, mitogens, growth factors, inducers and inhibitors control MMP activities. We investigated the roles of these in the regulation of MMP-2 and MMP-9 in human immortalized fibroblasts from FA. Human FA immortalized fibroblast cell lines FA-A:PD220 and FA-D2:PD20 were grown in minimum essential medium (MEM) supplemented with 15% fetal bovine serum (FBS) and antibiotics in 24-well tissue culture plates...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28089671/pdgfr%C3%AE-cells-in-embryonic-stem-cell-cultures-represent-the-in%C3%A2-vitro-equivalent-of-the-pre-implantation-primitive-endoderm-precursors
#3
Antonio Lo Nigro, Anchel de Jaime-Soguero, Rita Khoueiry, Dong Seong Cho, Giorgia Maria Ferlazzo, Ilaria Perini, Vanesa Abon Escalona, Xabier Lopez Aranguren, Susana M Chuva de Sousa Lopes, Kian Peng Koh, Pier Giulio Conaldi, Wei-Shou Hu, An Zwijsen, Frederic Lluis, Catherine M Verfaillie
In early mouse pre-implantation development, primitive endoderm (PrE) precursors are platelet-derived growth factor receptor alpha (PDGFRα) positive. Here, we demonstrated that cultured mouse embryonic stem cells (mESCs) express PDGFRα heterogeneously, fluctuating between a PDGFRα+ (PrE-primed) and a platelet endothelial cell adhesion molecule 1 (PECAM1)-positive state (epiblast-primed). The two surface markers can be co-detected on a third subpopulation, expressing epiblast and PrE determinants (double-positive)...
January 5, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28088609/leukemia-inhibitory-factor-impairs-structural-and-neurochemical-development-of-rat-visual-cortex-in-vivo
#4
Maren Engelhardt, Graziella di Cristo, Jochen Grabert, Silke Patz, Lamberto Maffei, Nicoletta Berardi, Petra Wahle
Minipump infusions into visual cortex in vivo at the onset of the critical period have revealed that the proinflammatory cytokine leukemia inhibitory factor (LIF) delays the maturation of thalamocortical projection neurons of the lateral geniculate nucleus, and tecto-thalamic projection neurons of the superior colliculus, and cortical layer IV spiny stellates and layer VI pyramidal neurons. Here, we report that P12-20 LIF infusion inhibits somatic maturation of pyramidal neurons and of all interneuron types in vivo...
January 11, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28081359/benzoic-acid-enhances-embryo-implantation-through-lif-dependent-expression-of-integrin-%C3%AE-v%C3%AE-3-and-%C3%AE-v%C3%AE-5
#5
Hee-Jung Choi, Tae-Wook Chung, Mi-Ju Park, Hyung Sik Kim, Sooseong You, Myeong Soo Lee, Bo Sun Joo, Kyu Sup Lee, Keuk-Jun Kim, Gabbine Wee, Choong-Yong Kim, Cheorl-Ho Kim, Ki-Tae Ha
The embryo implantation is crucial step for successful pregnancy. Diverse factors including adhesion molecules, growth factors, and cytokines are important to the embryo implantation through improving endometrial receptivity. Benzoic acid (BA), a component of various plants, has been shown to have anti-fungal and anti-oxidant effects. However, the effect of BA on the embryo implantation remains unknown. Here, we showed the contribution of BA for the enhancement of endometrial receptivity through the leukemia inhibitory factor (LIF)-dependent increase of integrin αV, β3, and β5 expression...
January 12, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28077540/leukemia-inhibitory-factor-lif-potentiates-antinociception-activity-and-inhibits-tolerance-induction-of-opioids
#6
H J Tu, K H Kang, S Y Ho, H C Liou, H H Liou, C P Lin, W M Fu
BACKGROUND: The efficacy of opioids typically decreases after long-term use owing to the development of tolerance. Glial activation and the upregulation of proinflammatory cytokines are related to the induction of tolerance. We investigated the effect of leukemia inhibitory factor (LIF) on morphine analgesia and tolerance. METHODS: LIF concentrations in rat spinal cords were measured by polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA) after morphine administration...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28074006/autocrine-wnt-regulates-the-survival-and-genomic-stability-of-embryonic-stem-cells
#7
Iris Augustin, Dyah L Dewi, Jennifer Hundshammer, Gerrit Erdmann, Grainne Kerr, Michael Boutros
Wnt signaling plays an important role in the self-renewal and differentiation of stem cells. The secretion of Wnt ligands requires Evi (also known as Wls). Genetically ablating Evi provides an experimental approach to studying the consequence of depleting all redundant Wnt proteins, and overexpressing Evi enables a nonspecific means of increasing Wnt signaling. We generated Evi-deficient and Evi-overexpressing mouse embryonic stem cells (ESCs) to analyze the role of autocrine Wnt production in self-renewal and differentiation...
January 10, 2017: Science Signaling
https://www.readbyqxmd.com/read/28069801/aurora-a-and-nf-%C3%AE%C2%BAb-survival-pathway-drive-chemoresistance-in-acute-myeloid-leukemia-via-the-traf-interacting-protein-tifa
#8
Tong-You Wade Wei, Pei-Yu Wu, Ting-Jung Wu, Hsin-An Hou, Wen-Chien Chou, Chieh-Lin Jerry Teng, Chih-Ru Lin, Jo-Mei Maureen Chen, Ting-Yang Lin, Hsiang-Chun Su, Chia-Chi Flora Huang, Chang-Tze Ricky Yu, Shih-Lan Hsu, Hwei-Fang Tien, Ming-Daw Tsai
Aurora A-dependent NF-κB signaling portends poor prognosis in acute myeloid leukemia (AML) and other cancers, but the functional basis underlying this association is unclear. Here, we report that Aurora A is essential for Thr9 phosphorylation of the TRAF-interacting protein TIFA, triggering activation of the NF-κB survival pathway in AML. TIFA protein was overexpressed concurrently with Aurora A and NF-κB signaling factors in patients with de novo AML relative to healthy individuals and also correlated with poor prognosis...
January 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28064096/high-glucose-induced-lif-suppresses-osteoblast-differentiation-via-regulating-stat3-socs3-signaling
#9
Changlu Liu, Dianming Jiang
High glucose (HG) is conceived to regulate bone metabolism in patients with diabetic mellitus (DM). In the present study, we examined the level of leukemia inhibitory factor (LIF), a pleiotropic cytokine in interleukin (IL)-6 family, in T2DM patients and investigated the regulation by HG on the induction of LIF/signal transducer and activator of transcription 3 (STAT3) signaling. Then we determined the regulation of HG and LIF on the osteoblast differentiation via measuring the ALP activity, matrix mineralization, and the expression of alkaline phosphatase (ALP), Runt-related transcription factor 2 (RUNX2), Osteocalcin (OCN) and osteopontin (OPN) in human osteoblast MG-63 cells...
January 5, 2017: Cytokine
https://www.readbyqxmd.com/read/28054442/markers-and-function-of-human-nk-cells-in-normal-and-pathological-conditions
#10
REVIEW
Genny Del Zotto, Emanuela Marcenaro, Paola Vacca, Simona Sivori, Daniela Pende, Mariella Della Chiesa, Francesca Moretta, Tiziano Ingegnere, Maria Cristina Mingari, Alessandro Moretta, Lorenzo Moretta
Natural killer (NK) cells, the most important effectors of the Innate Lymphoid Cells (ILCs), play a fundamental role in tumor immune-surveillance, defense against viruses and, in general, in innate immune responses. NK cell activation is mediated by several activating receptors and co-receptors able to recognize ligands on virus-infected or tumor cells. To prevent healthy cells from auto-aggression, NK cells are provided with strong inhibitory receptors (KIRs and NKG2A) which recognize HLA class I molecules on target cells and, sensing their level of expression, allow killing of targets underexpressing HLA-class I...
January 5, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28049832/forkhead-box-a2-foxa2-is-essential-for-uterine-function-and-fertility
#11
Andrew M Kelleher, Wang Peng, James K Pru, Cindy A Pru, Francesco J DeMayo, Thomas E Spencer
Establishment of pregnancy is a critical event, and failure of embryo implantation and stromal decidualization in the uterus contribute to significant numbers of pregnancy losses in women. Glands of the uterus are essential for establishment of pregnancy in mice and likely in humans. Forkhead box a2 (FOXA2) is a transcription factor expressed specifically in the glands of the uterus and is a critical regulator of postnatal uterine gland differentiation in mice. In this study, we conditionally deleted FOXA2 in the adult mouse uterus using the lactotransferrin Cre (Ltf-Cre) model and in the neonatal mouse uterus using the progesterone receptor Cre (Pgr-Cre) model...
January 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28046066/htlv-1-bzip-factor-enhances-t-cell-proliferation-by-impeding-the-suppressive-signaling-of-co-inhibitory-receptors
#12
Haruka Kinosada, Jun-Ichirou Yasunaga, Kazuya Shimura, Paola Miyazato, Chiho Onishi, Tomonori Iyoda, Kayo Inaba, Masao Matsuoka
Human T-cell leukemia virus type 1 (HTLV-1) causes adult T-cell leukemia-lymphoma (ATL) and inflammatory diseases. To enhance cell-to-cell transmission of HTLV-1, the virus increases the number of infected cells in vivo. HTLV-1 bZIP factor (HBZ) is constitutively expressed in HTLV-1 infected cells and ATL cells and promotes T-cell proliferation. However, the detailed mechanism by which it does so remains unknown. Here, we show that HBZ enhances the proliferation of expressing T cells after stimulation via the T-cell receptor...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28044390/systematic-in-vitro-and-in-vivo-characterization-of-leukemia-inhibiting-factor-and-fibroblast-growth-factor-derived-porcine-induced-pluripotent-stem-cells
#13
Jan O Secher, Ahmet Ceylan, Gianluca Mazzoni, Kaveh Mashayekhi, Tong Li, Suchitra Muenthaisong, Troels T Nielsen, Dong Li, Shengting Li, Stoyan Petkov, Susanna Cirera, Yonglun Luo, Lori Thombs, Haja N Kadarmideen, Andras Dinnyes, Lars Bolund, Bernard A J Roelen, Mette Schmidt, Henrik Callesen, Poul Hyttel, Kristine K Freude
Derivation and stable maintenance of porcine induced pluripotent stem cells (piPSCs) is challenging. We herein systematically analyzed two piPSC lines, derived by lentiviral transduction and cultured under either leukemia inhibitory factor (LIF) or fibroblast growth factor (FGF) conditions, to shed more light on the underlying biological mechanisms of porcine pluripotency. LIF-derived piPSCs were more successful than their FGF-derived counterparts in the generation of in vitro chimeras and in teratoma formation...
January 3, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28043837/targeting-antioxidant-enzyme-expression-as-a-therapeutic-strategy-for-ischemic-stroke
#14
REVIEW
Stephanie M Davis, Keith R Pennypacker
During ischemic stroke, neurons and glia are subjected to damage during the acute and neuroinflammatory phases of injury. Production of reactive oxygen species (ROS) from calcium dysregulation in neural cells and the invasion of activated immune cells are responsible for stroke-induced neurodegeneration. Scientists have failed thus far to identify antioxidant-based drugs that can enhance neural cell survival and improve recovery after stroke. However, several groups have demonstrated success in protecting against stroke by increasing expression of antioxidant enzymes in neural cells...
December 30, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/28032588/discovery-of-a-novel-nrf2-inhibitor-that-induces-apoptosis-of-human-acute-myeloid-leukemia-cells
#15
JinFeng Zhang, Le Su, Qing Ye, ShangLi Zhang, HsiangFu Kung, Fan Jiang, GuoSheng Jiang, JunYing Miao, BaoXiang Zhao
Nuclear factor-erythroid 2-related factor 2 (Nrf2) is persistently activated in many human tumors including acute myeloid leukemia (AML). Therefore, inhibition of Nrf2 activity may be a promising target in leukemia therapy. Here, we used an antioxidant response element-luciferase reporter system to identify a novel pyrazolyl hydroxamic acid derivative, 1-(4-(tert-Butyl)benzyl)-3-(4-chlorophenyl)-N-hydroxy-1H pyrazole-5-carboxamide (4f), that inhibited Nrf2 activity. 4f had a profound growth-inhibitory effect on three AML cell lines, THP-1, HL-60 and U937, and a similar anti-growth effect in a chick embryo model...
December 9, 2016: Oncotarget
https://www.readbyqxmd.com/read/28017646/targeting-the-transcription-factor-myb-by-small-molecule-inhibitors
#16
REVIEW
Sagar Uttarkar, Jon Frampton, Karl-Heinz Klempnauer
The transcription factor Myb is a key regulator of hematopoietic cell proliferation, differentiation, and survival and has been implicated in the development of leukemia and several other human cancers. Pharmacological inhibition of Myb is therefore emerging as a potential therapeutic strategy. Recently, the first low-molecular-weight compounds that show Myb inhibitory activity have been identified. Characterization of these compounds suggests disruption of the protein-protein-interaction of Myb and the coactivator p300 as a suitable strategy to inhibit Myb...
December 23, 2016: Experimental Hematology
https://www.readbyqxmd.com/read/28007046/maternal-effect-gene-expression-in-porcine-metaphase-ii-oocytes-and-embryos-in-vitro-effect-of-epidermal-growth-factor-interleukin-1%C3%AE-and-leukemia-inhibitory-factor
#17
Marta Wasielak, Teresa Więsak, Iwona Bogacka, Beenu Moza Jalali, Marek Bogacki
Maternal effect genes (MEG) play a crucial role in early embryogenesis. In vitro culture conditions may affect MEG expression in porcine oocytes and embryos. We investigated whether in vitro culture medium supplementation with epidermal growth factor (EGF), IL-1β or LIF (leukemia inhibitory factor) affects the mRNA level of ZAR-1 (zygote arrest 1), NPM2 (nucleoplasmin 2) and DPPA3 (developmental associated protein 3) in porcine MII oocytes and embryos. Cumulus-oocyte complexes (COCs) were matured in NCSU-37 medium (control) or in NCSU-37 with EGF 10 ng/ml, IL-1β 10 ng/ml or LIF 50 ng/ml...
December 23, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27988407/biophysical-regulation-of-mouse-embryonic-stem-cell-fate-and-genomic-integrity-by-feeder-derived-matrices
#18
Lakshmi Kavitha Sthanam, Amlan Barai, Anuj Rastogi, Vijay K Mistari, Ana Maria, Rahul Kauthale, Madhumanjiri Gatne, Shamik Sen
For maintaining pluripotency, mouse embryonic stem cells (mESCs) are typically grown on mitotically inactivated mouse embryonic fibroblasts (MEFs). While the role of MEF conditioned media (MEFCM) and leukemia inhibitory factor (LIF) in regulating mESC pluripotency has led to culturing of mESCs on LIF/MEFCM supplemented gelatin-coated substrates, the role of physical interactions between MEFs and mESCs in regulating mESC pluripotency remains to be fully understood. Here, we address this question by characterizing the physicochemical properties of MEF derived matrices (MEFDMs), and probing their role in regulating mESC fate...
March 2017: Biomaterials
https://www.readbyqxmd.com/read/27956699/dormant-pluripotent-cells-emerge-during-neural-differentiation-of-embryonic-stem-cells-in-a-foxo3-dependent-manner
#19
Megumi Ikeda, Fumiko Toyoshima
One major concern for clinical applications of embryonic stem cell (ESC)-derived cells is residual undifferentiated cells potentiating latent tumorigenicity. Despite intensive methodological approaches to eliminate residual undifferentiated cells, properties of these cells remain elusive. Here, we show that in a serum-free neural differentiation condition, residual undifferentiated cells markedly delay their cell cycle progression without compromising their pluripotency. This dormant pluripotency was maintained during reculture of the cells in a serum-free condition, whereas upon serum stimulation, the cells exit the dormant state, and restart proliferation and differentiation into all three germ layers...
December 12, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27931030/effects-of-total-sleep-deprivation-on-mouse-cytokine-levels
#20
Lin Yang, Li Li, Jianfeng Xue
OBJECTIVE: Cytokines play an integral role in sleep/wake regulation. The objective of this study was to identify how total sleep deprivation affects cytokine levels. METHODS: Male C57BL/6 mice were subjected to 48 h of total sleep deprivation produced by brief rotation of activity wheels or 3 different controls: home cage, a sedentary wheel, or forced activity. In addition, the serum levels of cytokines were analyzed using a mouse magnetic bead-based multiplex immunoassay...
December 9, 2016: Neuroimmunomodulation
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