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leukemia inhibitory factor

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https://www.readbyqxmd.com/read/29148756/inhibitory-activities-of-compounds-from-the-marine-actinomycete-williamsia-sp-mccc-1a11233-variant-on-ige-mediated-mast-cells-and-passive-cutaneous-anaphylaxis
#1
Yuanyuan Gao, Qingmei Liu, Bo Liu, Chun-Lan Xie, Min-Jie Cao, Xian-Wen Yang, Guang-Ming Liu
Compounds of the deep-sea-derived marine Williamsia sp. MCCC 1A11233 (CDMW), which are secondary metabolites of the actinomycetes, were isolated. In this study, seven kinds of CDMW were found to decrease degranulation and histamine release in immunoglobulin E (IgE)-mediated rat basophilic leukemia (RBL)-2H3 cells. The production of cytokines (tumor necrosis factor-α and interleukin-4) was inhibited by these CDMW in RBL-2H3 cells, and their chemical structures were established mainly based on detailed analysis of their NMR spectra...
November 17, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29146205/pax3-foxo1-zooming-in-on-an-undruggable-target
#2
REVIEW
Marco Wachtel, Beat W Schäfer
Driver oncogenes are prime targets for therapy in tumors many of which, including leukemias and sarcomas, express recurrent fusion transcription factors. One specific example for such a cancer type is alveolar rhabdomyosarcoma, which is associated in the majority of cases with the fusion protein PAX3-FOXO1. Since fusion transcription factors are challenging targets for development of small molecule inhibitors, indirect inhibitory strategies for this type of oncogenes represent a more promising approach. One can envision strategies at different molecular levels including upstream modifiers and activators, epigenetic and transcriptional co-regulators, and downstream effector targets...
November 13, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29140406/smad3-stat3-crosstalk-in-pathophysiological-contexts
#3
Yuka Itoh, Masao Saitoh, Keiji Miyazawa
Smad3 and STAT3 are intracellular molecules that transmit signals from plasma membrane receptors to the nucleus. Smad3 operates downstream of growth/differentiation factors that utilize activin receptor-like kinase (ALK)-4, 5, or 7, such as transforming growth factor-β (TGF-β), activin, and myostatin. STAT3 principally functions downstream of cytokines that exert their effects via gp130 and Janus family kinases, including interleukin-6 (IL-6), leukemia inhibitory factor (LIF), and oncostatin M. Accumulating evidence indicates that Smad3 and STAT3 engage in crosstalk in a highly context-dependent fashion, cooperating in some conditions while acting antagonistically each other in others...
November 13, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29139097/correction-to-leukemia-inhibitory-factor-increases-survival-of-pluripotent-stem-cell-derived-cardiomyocytes
#4
Carolina Blüguermann, Leonardo Romorini, Denis Evseenko, Ximena Garate, Gabriel Neiman, Gustavo Emilio Sevlever, María Elida Scassa, Santiago Gabriel Miriuka
Please note that Carolina Blüguermann's surname was misspelled (as Blugüermann) in this article as originally published.
November 14, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29137597/reduction-of-pluripotent-gene-expression-in-murine-embryonic-stem-cells-exposed-to-mechanical-loading-or-cyclo-rgd-peptide
#5
Olesja Hazenbiller, Neil A Duncan, Roman J Krawetz
BACKGROUND: Self-renewal and differentiation of embryonic stem cells (ESCs) is directed by biological and/or physical cues that regulate multiple signaling cascades. We have previously shown that mESCs seeded in a type I collagen matrix demonstrate a loss of pluripotent marker expression and differentiate towards an osteogenic lineage. In this study, we examined if this effect was mediated in part through Arginylglycylaspartic acid (RGD) dependent integrin activity and/or mechano-transduction...
November 14, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/29076502/derivation-of-hypermethylated-pluripotent-embryonic-stem-cells-with-high-potency
#6
Siqin Bao, Walfred Wc Tang, Baojiang Wu, Shinseog Kim, Jingyun Li, Lin Li, Toshihiro Kobayashi, Caroline Lee, Yanglin Chen, Mengyi Wei, Shudong Li, Sabine Dietmann, Fuchou Tang, Xihe Li, M Azim Surani
Naive hypomethylated embryonic pluripotent stem cells (ESCs) are developmentally closest to the preimplantation epiblast of blastocysts, with the potential to contribute to all embryonic tissues and the germline, excepting the extra-embryonic tissues in chimeric embryos. By contrast, epiblast stem cells (EpiSCs) resembling postimplantation epiblast are relatively more methylated and show a limited potential for chimerism. Here, for the first time, we reveal advanced pluripotent stem cells (ASCs), which are developmentally beyond the pluripotent cells in the inner cell mass but with higher potency than EpiSCs...
October 27, 2017: Cell Research
https://www.readbyqxmd.com/read/29056334/functional-antagonism-between-otx2-and-nanog-specifies-a-spectrum-of%C3%A2-heterogeneous-identities-in-embryonic-stem-cells
#7
Dario Acampora, Luca Giovanni Di Giovannantonio, Arcomaria Garofalo, Vincenzo Nigro, Daniela Omodei, Alessia Lombardi, Jingchao Zhang, Ian Chambers, Antonio Simeone
Embryonic stem cells (ESCs) cultured in leukemia inhibitory factor (LIF) plus fetal bovine serum (FBS) exhibit heterogeneity in the expression of naive and primed transcription factors. This heterogeneity reflects the dynamic condition of ESCs and their versatility to promptly respond to signaling effectors promoting naive or primed pluripotency. Here, we report that ESCs lacking Nanog or overexpressing Otx2 exhibit an early primed identity in LIF + FBS and fail to convert into 2i-induced naive state. Conversely, Otx2-null ESCs possess naive identity features in LIF + FBS similar to Nanog-overexpressing ESCs and convert poorly into FGF-induced early primed state...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29051803/midostaurin-a-novel-therapeutic-agent-for-patients-with-flt3-mutated-acute-myeloid-leukemia-and-systemic-mastocytosis
#8
REVIEW
Molly M Gallogly, Hillard M Lazarus, Brenda W Cooper
The development of FLT3-targeted inhibitors represents an important paradigm shift in the management of patients with highly aggressive fms-like tyrosine kinase 3-mutated (FLT3-mut) acute myeloid leukemia (AML). Midostaurin is an orally administered type III tyrosine kinase inhibitor which in addition to FLT3 inhibits c-kit, platelet-derived growth factor receptors, src, and vascular endothelial growth factor receptor. Midostaurin is the first FLT3 inhibitor that has been shown to significantly improve survival in younger patients with FLT3-mut AML when given in combination with standard cytotoxic chemotherapy based on the recently completed RATIFY study...
September 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/29046826/incorporation-of-functional-elements-enhances-the-antitumor-capacity-of-car-t-cells
#9
REVIEW
Le Qin, Ruocong Zhao, Peng Li
As chimeric antigen receptor (CAR) T cells have displayed an unprecedented efficacy in the treatment of CD19-positive malignances, it is believed that this cell therapy will be a milestone in the history of mankind's conquering of cancer. However, there are some issues that restrict CAR T cells from reaching their optimal anti-tumor capacity, especially in the treatment of solid tumors. Inhibitory cytokines, immune checkpoint molecules, hypoxia and other adverse factors have been reported to be involved in this process...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/29043003/tiaogeng-yijing-decoction-improves-the-pregnancy-outcomes-of-patients-with-poor-ovarian-response-undergoing-in-vitro-fertilization-embryo-transfer
#10
Hui Xue, Juan Dong, Huijun Xu, Xin Huang, Huangguan Dai, Cuifang Hao
The present study aimed to explore the therapeutic effects of the Tiaogeng Yijing decoction on patients with poor ovarian response (POR) undergoing in vitro fertilization-embryo transfer (IVF-ET), in addition to the underlying molecular mechanisms of these effects. A total of 40 patients were randomly and equally assigned to the treatment or control group. Patients in the treatment group received the Tiaogeng Yijing decoction continuously for three menstrual cycles in addition to microstimulation, while patients in the control group underwent microstimulation only...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29038846/a-possible-implication-of-reduced-levels-of-lif-lifr-and-gp130-in-vasculopathy-related-to-systemic-sclerosis
#11
Takashi Taniguchi, Takuya Miyagawa, Zenshiro Tamaki, Kouki Nakamura, Takashi Yamashita, Ryosuke Saigusa, Takehiro Takahashi, Tetsuo Toyama, Yohei Ichimura, Ayumi Yoshizaki, Yayoi Tada, Makoto Sugaya, Takafumi Kadono, Shinichi Sato, Yoshihide Asano
Leukemia inhibitory factor (LIF) is a member of IL-6 family, which serves as a potent chemoattractant for neutrophils as well as a potent angiostatic factor. LIF has been implicated in various autoimmune inflammatory diseases, but its role still remains elusive in systemic sclerosis (SSc). Therefore, we investigated the potential role of LIF in the development of SSc by evaluating the clinical correlation of serum LIF levels, the expression of LIF and its receptors in skin samples, and in vitro experiments with human dermal microvascular endothelial cells...
October 16, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29029471/protective-effect-of-resveratrol-against-light-induced-retinal-degeneration-in-aged-samp8-mice
#12
Zhirong Liu, Zhengzheng Wu, Jie Li, Anna Marmalidou, Ruifan Zhang, Man Yu
PURPOSE: The purpose of this study was to determine the protective effects of Resveratrol (RESV) on acute bright light-induced retinal degeneration in aged senescence accelerated mouse strain. METHODS: Ten three-month-old male SAMP8 mice (prone to aging) were randomly assigned to two experimental dietary groups: one untreated group and one RESV treatment group (n=20 eyes for each group). After 30 days of treatment, mice were exposed to intense bright light. Ten male SAMR1 mice (resistant to aging) served as control (n=20 eyes)...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29019149/leukemia-inhibitory-factor-increases-survival-of-pluripotent-stem-cell-derived-cardiomyocytes
#13
Carolina Blugüermann, Leonardo Romorini, Denis Evseenko, Ximena Garate, Gabriel Neiman, Gustavo Emilio Sevlever, María Elida Scassa, Santiago Gabriel Miriuka
Leukemia inhibitory factor (LIF) is a growth factor with pleiotropic biological functions. It has been reported that LIF acts at different stages during mesoderm development. Also, it has been shown that LIF has a cytoprotective effect on neonatal murine cardiomyocytes (CMs) in culture, but little is known about the role of LIF during human cardiogenesis. Thus, we analyzed the effects of LIF on human pluripotent stem cells (PSC) undergoing cardiac differentiation. We first showed that LIF is expressed in the human heart during early development...
October 10, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28989536/mechanisms-of-inhibiting-human-leukemia-cell-lines-by-serum-of-rats-treated-with-compound-banmao-capsule
#14
Li Li, Lixia Zhu, Jingjing Zhu, Xiaofen Fan, Xiujin Ye
Compound banmao capsule (CBC) is a traditional Chinese medicinal formula composed of extracts from 11 organisms. The present study investigated the mechanism of CBC on the biological behavior of human leukemia cell lines using seropharmacological methods. CBC-containing rat serum was prepared by intragastrical administration of CBC to rats. The proliferation of human leukemia HL60 and K562 cell lines was assayed by measuring cell viability with the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium method, while cell cycle distribution and the rate of apoptosis were evaluated with flow cytometry...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28978315/resveratrol-enhances-anticancer-effects-of-paclitaxel-in-hepg2-human-liver-cancer-cells
#15
Qin Jiang, Manyi Yang, Zhan Qu, Jixiang Zhou, Qi Zhang
BACKGROUND: The aim of this in vitro study was to measure the enhanced anticancer effects of Res (resveratrol) on PA (paclitaxel) in HepG2 human liver cancer cells. METHODS: The MTT (thiazolyl blue tetrazolium bromide, 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide), flow cytometry, qPCR (real-time quantitative polymerase chain reaction) and western blot assay were used for cells growth inhibitory effects, cells apoptosis (DNA content of sub-G1), mRNA and protein expressions, respectively...
October 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28969616/assessment-of-biomarkers-using-multiplex-assays-in-aqueous-humor-of-patients-with-diabetic-retinopathy
#16
Hui Chen, Xiongze Zhang, Nanying Liao, Feng Wen
BACKGROUND: With the high prevalence of type 2 diabetes, diabetic retinopathy (DR) has become a leading health problem worldwide. The pathogenesis of DR is complex and several vascular, inflammatory, and neuronal mechanisms are involved. The purpose of this study was to assess the levels of immune and inflammatory biomarkers in the aqueous humor of patients with different severities of DR and to analyze the correlations between Interleukin-6 (IL-6) and these biomarkers, and between IL-6 and the severity of the disease...
October 2, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28968948/antinflammatory-and-anticancer-effects-of-terpenes-from-oily-fractions-of-teucruim-alopecurus-blocker-of-i%C3%AE%C2%BAb%C3%AE-kinase-through-downregulation-of-nf-%C3%AE%C2%BAb-activation-potentiation-of-apoptosis-and-suppression-of-nf-%C3%AE%C2%BAb-regulated-gene-expression
#17
Fatma Guesmi, Sahdeo Prasad, Amit K Tyagi, Ahmed Landoulsi
Teucrium alopecurus is an endemic plant limited to southern Tunisia. In the present study, the chemical composition, anticancer and nuclear factor-κB (NF-κB) inhibitory effects of Teucrium alopecurus leaf essential oil was investigated. The analysis of Teucrium alopecurus (TA-1) with Gas Chromatography-Mass Spectrometry (GC/MS) showed that α-Bisabolol, (+)-epi-Bicyclosesquiphellandrene and α-Cadinol, were found in relatively high amounts (16.16%, 15.40% and 8.52%, respectively). Cell viability was determined by 3-(4-5-dimethylthiazol-2-yl) 2-5-diphenyl-tetrazolium (MTT) assay...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28967712/alterations-in-expression-of-endometrial-milk-fat-globule-egf-factor-8-mfg-e8-and-leukemia-inhibitory-factor-lif-in-patients-with-infertility-and-endometriosis
#18
Carla Regina Schmitz, Sergio Oehninger, Vanessa Krebs Genro, Neelima Chandra, Frank Lattanzio, Liang Yu, João Sabino Cunha-Filho
OBJECTIVE: The aim of this study was to compare the endometrial expression of milk fat globule-EGF factor 8 (MFG-E8), its receptor integrin αvβ3, and leukemia inhibitory factor (LIF) in patients with endometriosis and infertility and in healthy fertile patients during the window of implantation. METHODS: Five patients with peritoneal endometriosis and infertility (case group) and four healthy fertile patients (control group) were recruited. All patients were either diagnosed with or ruled out for endometriosis by laparoscopic surgery; the case group underwent surgery for infertility investigation and the control group for tubal ligation...
October 2, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28966652/optical-coherence-tomography-and-t-cell-gene-expression-analysis-in-patients-with-benign-multiple-sclerosis
#19
John Soltys, Qin Wang, Yang Mao-Draayer
Benign multiple sclerosis is a retrospective diagnosis based primarily on a lack of motor symptom progression. Recent findings that suggest patients with benign multiple sclerosis experience non-motor symptoms highlight the need for a more prospective means to diagnose benign multiple sclerosis early in order to help direct patient care. In this study, we present optical coherence tomography and T cell neurotrophin gene analysis findings in a small number of patients with benign multiple sclerosis. Our results demonstrated that retinal nerve fiber layer was mildly thinned, and T cells had a distinct gene expression profile that included upregulation of interleukin 10 and leukemia inhibitory factor, downregulation of interleukin 6 and neurotensin high affinity receptor 1 (a novel neurotrophin receptor)...
August 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28961274/sp5-induces-the-expression-of-nanog-to-maintain-mouse-embryonic-stem-cell-self-renewal
#20
Ling Tang, Manman Wang, Dahai Liu, Mengting Gong, Qi-Long Ying, Shoudong Ye
Activation of signal transducer and activator of transcription 3 (STAT3) by leukemia inhibitory factor (LIF) maintains mouse embryonic stem cell (mESC) self-renewal. Our previous study showed that trans-acting transcription factor 5 (Sp5), an LIF/STAT3 downstream target, supports mESC self-renewal. However, the mechanism by which Sp5 exerts these effects remains elusive. Here, we found that Nanog is a direct target of Sp5 and mediates the self-renewal-promoting effect of Sp5 in mESCs. Overexpression of Sp5 induced Nanog expression, while knockdown or knockout of Sp5 decreased the Nanog level...
2017: PloS One
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