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leukemia inhibitory factor

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https://www.readbyqxmd.com/read/28730239/wnt-and-nodal-signaling-simultaneously-induces-definitive-endoderm-differentiation-of-mouse-embryonic-stem-cells
#1
Wa Zhong, Yu Lai, Tao Yu, Zhong Sheng Xia, Yu Hong Yuan, Hui Ouyang, Ti Dong Shan, Qi Kui Chen
Induced differentiation of definitive endoderm (DE) from embryonic stem cells (ESCs) has been the recent focus of studies investigating regeneration and transplantation of organs of the digestive system. Poor cell survival is the most important challenge to DE differentiation from ESCs. This study aimed to optimize culture conditions to promote the differentiation of mouse ESCs into DE, and to investigate the roles of the Wnt and Nodal signaling pathways in the DE differentiation. The mouse ESCs were treated with or without leukemia inhibitory factor, Wnt3a and Activin A alone or together, and examined the DE differentiation by the DE marker CXCR4 and the ESC marker Oct4...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729093/pim-kinases-1-2-and-3-in-intracellular-lif-signalling-proliferation-and-apoptosis-in-trophoblastic-cells
#2
Stella Mary Photini, Wittaya Chaiwangyen, Maja Weber, Boodor Al-Kawlani, Rodolfo R Favaro, Udo Jeschke, Ekkehard Schleussner, Diana M Morales-Prieto, Udo R Markert
Proviral insertion in murine (PIM) lymphoma proteins are mainly regulated by the Janus Kinase/Signal Transducer Activator of Transcription (JAK/STAT) signaling pathway, which can be activated by members of the Interleukin-6 (IL-6) family, including Leukemia Inhibitory Factor (LIF). Aim of the study was to compare PIM1, PIM2 and PIM3 expression and potential cellular functions in human first and third trimester trophoblast cells, the immortalized first trimester extravillous trophoblast cell line HTR8/SVneo and the choriocarcinoma cell line JEG-3...
July 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28728562/low-oxygen-tension-increases-mitochondrial-membrane-potential-and-enhances-expression-of-antioxidant-genes-and-implantation-protein-of-mouse-blastocyst-cultured-in-vitro
#3
Yun-Yi Ma, Huei-Wen Chen, Chii-Ruey Tzeng
BACKGROUND: In human IVF, embryos cultured with a lower O2 tension (5%) can give rise to higher success rates when compared with normoxic conditions (20%). However, the mechanisms behind the beneficial effects of reduced oxygen tension in embryogenesis remain unclear. The aim of this study was to evaluate the expression of oxygen related and antioxidant genes and mitochondrial function in mouse embryo cultured under hypoxic and normoxic conditions, to investigate the beneficial effect of low oxygen tension in preimplantation embryogenesis...
July 20, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28724908/design-and-discovery-of-novel-monastrol-1-3-5-triazines-as-potent-anti-breast-cancer-agent-via-attenuating-epidermal-growth-factor-receptor-tyrosine-kinase
#4
Jitendra Kumar Srivastava, Girinath G Pillai, Hans Raj Bhat, Amita Verma, Udaya Pratap Singh
A novel series of hybrid analogues of monastrol-1,3,5-triazine were designed and developed via one-pot synthesis using Bi(NO3)3 as a catalyst. Entire compounds were evaluated for their anticancer activity against HeLa (cervical cancer), MCF-7 (breast cancer), HL-60 (Human promyelocytic leukemia), HepG2 (Hepatocellular carcinoma) and MCF 12A (normal epithelial breast cell line) using MTT assay, where they showed highest inhibitory activity against MCF-7. The molecules were also found to be non-toxic to MCF 12A cells...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708884/a-jak1-2-inhibitor-baricitinib-inhibits-osteoclastogenesis-by-suppressing-rankl-expression-in-osteoblasts-in-vitro
#5
Kohei Murakami, Yasuhiro Kobayashi, Shunsuke Uehara, Takako Suzuki, Masanori Koide, Teruhito Yamashita, Midori Nakamura, Naoyuki Takahashi, Hiroyuki Kato, Nobuyuki Udagawa, Yukio Nakamura
The Janus kinases (Jaks) are hubs in the signaling process of more than 50 cytokine or hormone receptors. However, the function of Jak in bone metabolism remains to be elucidated. Here, we showed that the inhibition of Jak1 and/or Jak2 in osteoblast-lineage cells led to impaired osteoclastogenesis due to the reduced expression of receptor activator of nuclear factor-κB ligand (RANKL). Murine calvaria-derived osteoblasts induced differentiation of bone marrow cells into osteoclasts in the presence of 1,25-dihydroxyvitamin D3 (1,25D3) and prostaglandin E2 (PGE2) in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28693250/bcl-2-bcl-xl-inhibitor-abt-737-sensitizes-pancreatic-ductal-adenocarcinoma-to-paclitaxel-induced-cell-death
#6
Shuya Kasai, Takuya Sasaki, Ayano Watanabe, Masao Nishiya, Shinji Yasuhira, Masahiko Shibazaki, Chihaya Maesawa
Pancreatic ductal adenocarcinoma (PDA) is an aggressive malignant disease that is resistant to various chemotherapeutic agents and commonly relapses. Efficient elimination of metastasized PDA is critical for a positive post-surgical treatment outcome. The present study analyzed the effect of the B-cell lymphoma-2 (Bcl-2)/B-cell lymphoma extra-large (Bcl-xL) inhibitor, ABT-737, on paclitaxel-induced PDA cell death. A total of 8 PDA cell lines were subjected to immunoblotting to compare the expression of Bcl-2/Bcl-xL and other factors associated with taxane resistance, including myeloid cell leukemia 1 and βIII-tubulin (TUBB3)...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28676452/water-extracted-tubers-of-cyperus-rotundus-l-enhance-endometrial-receptivity-through-leukemia-inhibitory-factor-mediated-expression-of-integrin-%C3%AE-v%C3%AE-3-and-%C3%AE-v%C3%AE-5
#7
Hee-Jung Choi, Tae-Wook Chung, Mi-Ju Park, Yeon-Seop Jung, Syng-Ook Lee, Keuk-Jun Kim, Ki-Tae Ha
ETHNOPHARMACOLOGICAL RELEVANCE: Cyperus rotundus L. (CR) has been traditionally used as an herbal medicine in Asian countries to treat diverse gynecological disorders. However, the potential therapeutic effect of CR on endometrial receptivity for successful embryo implantation to treat female infertility has not been fully studied. AIM OF STUDY: The aim of this study was to evaluate the effect of water-extracted CR on endometrial receptivity by investigating the expression of leukemia inhibitory factor (LIF) and integrins, cell adhesion, and embryo implantation using mifepristone (RU486; RU)-induced implantation failure model...
July 1, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28646117/cyclin-dependent-kinase-9-is-a-novel-specific-molecular-target-in-adult-t-cell-leukemia-lymphoma
#8
Tomoko Narita, Takashi Ishida, Asahi Ito, Ayako Masaki, Shiori Kinoshita, Susumu Suzuki, Hisashi Takino, Takashi Yoshida, Masaki Ri, Shigeru Kusumoto, Hirokazu Komatsu, Kazunori Imada, Yuetsu Tanaka, Takaori-Kondo Akifumi, Hiroshi Inagaki, Arne Scholz, Philip Lienau, Taruho Kuroda, Ryuzo Ueda, Shinsuke Iida
Cyclin-dependent kinase 9 (CDK9), a subunit of the positive transcription elongation factor b (P-TEFb) complex, regulates gene transcription elongation by phosphorylating the carboxy-terminal domain (CTD) of RNA polymerase II (RNAPII).  The deregulation of CDK9/P-TEFb has important implications for many cancer types.  BAY 1143572 is a novel and highly selective CDK9/P-TEFb inhibitor currently being investigated in phase I studies. We evaluated the therapeutic potential of BAY 1143572 in adult T-cell leukemia/lymphoma (ATL)...
June 23, 2017: Blood
https://www.readbyqxmd.com/read/28645526/injury-induced-gp130-cytokine-signaling-in-peripheral-ganglia-is-reduced-in-diabetes-mellitus
#9
Jon P Niemi, Angela R Filous, Alicia DeFrancesco, Jane A Lindborg, Nisha A Malhotra, Gina N Wilson, Bowen Zhou, Samuel D Crish, Richard E Zigmond
Neuropathy is a major diabetic complication. While the mechanism of this neuropathy is not well understood, it is believed to result in part from deficient nerve regeneration. Work from our laboratory established that gp130 family of cytokines are induced in animals after axonal injury and are involved in the induction of regeneration-associated genes (RAGs) and in the conditioning lesion response. Here, we examine whether a reduction of cytokine signaling occurs in diabetes. Streptozotocin (STZ) was used to destroy pancreatic β cells, leading to chronic hyperglycemia...
June 20, 2017: Experimental Neurology
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
REVIEW
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...
July 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
#20
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
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