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https://www.readbyqxmd.com/read/28214760/genotyping-analysis-of-protein-s-tokushima-k196e-and-the-involvement-of-protein-s-antigen-and-activity-in-patients-with-recurrent-pregnancy-loss
#1
Yasushi Matsukawa, Eriko Asano, Tomohide Tsuda, Hiroyuki Kuma, Tamao Kitaori, Kinue Katano, Yasuhiko Ozaki, Mayumi Sugiura-Ogasawara
OBJECTIVE: Preston et al. indicated that Protein S (PS) deficiency was associated with stillbirths but not miscarriages. The PS-Tokushima missense variant was reported to serve as a genetic risk factor for deep vein thrombosis in the Japanese population. A previous cross-sectional study showed no increase in the prevalence of PS-Tokushima in patients with recurrent early pregnancy loss or in patients with intra uterine fetal death and/or fetal growth restriction. There has been limited number of prospective studies examining the pregnancy outcome in patients with both a PS deficiency and recurrent pregnancy loss (RPL)...
February 8, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28213355/chd1-is-a-synthetic-essential-gene-in-pten-deficient-prostate-cancer
#2
(no author information available yet)
CHD1 is required for the growth of PTEN-deficient prostate cancer cells in vitro and in vivo.
February 17, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28211872/rictor-mtorc2-deficiency-enhances-keratinocyte-stress-tolerance-via-mitohormesis
#3
Beatrice Tassone, Stefania Saoncella, Francesco Neri, Ugo Ala, Davide Brusa, Mark A Magnuson, Paolo Provero, Salvatore Oliviero, Chiara Riganti, Enzo Calautti
How metabolic pathways required for epidermal tissue growth and remodeling influence the ability of keratinocytes to survive stressful conditions is still largely unknown. The mechanistic target of rapamycin complex 2 (mTORC2) regulates growth and metabolism of several tissues, but its functions in epidermal cells are poorly defined. Rictor is an adaptor protein essential for mTORC2 activity. To explore the roles of mTORC2 in the epidermis, we have conditionally deleted rictor in mice via K14-Cre-mediated homologous recombination and found that its deficiency causes moderate tissue hypoplasia, reduced keratinocyte proliferation and attenuated hyperplastic response to TPA...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28211272/effects-of-dimethyloxalylglycine-embedded-poly-%C3%AE%C2%B5-caprolactone-fiber-meshes-on-wound-healing-in-diabetic-rats
#4
Qiankun Zhang, Joung-Hwan Oh, Chan Ho Park, Jeong-Hwa Baek, Hyun-Mo Ryoo, Kyung Mi Woo
Impaired wound healing in diabetic patients is associated with altered inflammatory responses, poor angiogenesis, deficient extracellular matrix (ECM) component, and peripheral neuropathy. To develop a wound dressing that is capable of the controlled delivery of bioactive small molecules that can improve diabetic wound healing, dimethyloxalylglycine (DMOG)-embedded poly(ε-caprolactone) (PCL) fiber (PCLF/DMOG) meshes are fabricated by electrospinning, and the effects of the PCLF/DMOG meshes on wound healing in diabetic rats are evaluated...
February 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28209717/autophagy-metabolism-and-cancer
#5
Jessie Yanxiang Guo, Eileen White
Macroautophagy (autophagy hereafter) is a process that collects cytoplasmic components, particularly mitochondria, and degrades them in lysosomes. In mammalian systems, basal autophagy levels are normally low but are profoundly stimulated by starvation and essential for survival. Cancer cells up-regulate autophagy and can be more autophagy-dependent than most normal tissues. Genetic deficiency in essential autophagy genes in tumors in many autochthonous mouse models for cancer reduces tumor growth. In K-ras(G12D)-driven non-small cell lung cancer (NSCLC) and other models, autophagy sustains metabolism and survival...
February 16, 2017: Cold Spring Harbor Symposia on Quantitative Biology
https://www.readbyqxmd.com/read/28208810/shp2-plays-a-critical-role-in-il-6-induced-emt-in-breast-cancer-cells
#6
Xuan Sun, Jie Zhang, Zhiyong Wang, Wei Ji, Ran Tian, Fei Zhang, Ruifang Niu
Accumulative evidence demonstrates that the protein tyrosine phosphatase Shp2 functions as a powerful tumor promoter in many types of cancers. Abnormal expression of Shp2 has been implicated in many human malignancies. Overexpression of Shp2 in cancer tissues is correlated with cancer metastasis, resistance to targeted therapy, and poor prognosis. The well-known function of Shp2 is its positive role in regulating cellular signaling initiated by growth factors and cytokines, including interleukin-6 (IL-6). Several recent studies have shown that Shp2 is required for epithelial-mesenchymal transition (EMT), triggered by growth factors...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208663/endoplasmic-reticulum-er-stress-and-endocrine-disorders
#7
REVIEW
Daisuke Ariyasu, Hiderou Yoshida, Yukihiro Hasegawa
The endoplasmic reticulum (ER) is the organelle where secretory and membrane proteins are synthesized and folded. Unfolded proteins that are retained within the ER can cause ER stress. Eukaryotic cells have a defense system called the "unfolded protein response" (UPR), which protects cells from ER stress. Cells undergo apoptosis when ER stress exceeds the capacity of the UPR, which has been revealed to cause human diseases. Although neurodegenerative diseases are well-known ER stress-related diseases, it has been discovered that endocrine diseases are also related to ER stress...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28207963/nardilysin-promotes-hepatocellular-carcinoma-through-activation-of-signal-transducer-and-activator-of-transcription-3
#8
Yosuke Kasai, Kan Toriguchi, Etsuro Hatano, Kiyoto Nishi, Mikiko Ohno, Tomoaki Yoh, Keita Fukuyama, Takahiro Nishio, Masayuki Okuno, Keiko Iwaisako, Satoru Seo, Kojiro Taura, Masato Kurokawa, Makoto Kunichika, Shinji Uemoto, Eiichiro Nishi
Nardilysin (NRDC) is a metalloendopeptidase of the M16 family. We previously showed that NRDC activates inflammatory cytokine signaling, including interleukin-6-signal transducer and activator of transcription 3 (STAT3) signaling. NRDC has been implicated in the promotion of breast, gastric, and esophageal cancer, as well as the development of liver fibrosis. In this study, we investigated the role of NRDC in the promotion of hepatocellular carcinoma (HCC), both clinically and experimentally. We found that NRDC expression was up-regulated 3-fold in HCC tissue compared to the adjacent non-tumor liver tissue, which was confirmed by immunohistochemistry and western blotting...
February 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/28207927/attenuated-airway-hyperresponsiveness-and-mucus-secretion-in-hdm-exposed-igf1r-deficient-mice
#9
S Piñeiro-Hermida, J A Gregory, I P López, R Torrens, C Ruíz-Martínez, M Adner, J G Pichel
BACKGROUND: Asthma is a common chronic lung disease characterized by airflow obstruction, airway hyperresponsiveness (AHR) and inflammation. IGFs have been reported to play a role in asthma but little is known about how the Insulin-like Growth Factor 1 Receptor (IGF1R) affects asthma pathobiology. METHODS: Female Igf1r-deficient and control mice were intranasally challenged with house dust mite (HDM) extract or PBS five days per week for four weeks. Lung function measurements, and bronchioalveolar lavage fluid (BALF), serum and lungs were collected on day 28 for further cellular, histological and molecular analysis...
February 16, 2017: Allergy
https://www.readbyqxmd.com/read/28205313/genetic-analyses-unravel-the-crucial-role-of-a-horizontally-acquired-alginate-lyase-for-brown-algal-biomass-degradation-by-zobellia-galactanivorans
#10
Yongtao Zhu, François Thomas, Robert Larocque, Nan Li, Delphine Duffieux, Lionel Cladière, Florent Souchaud, Gurvan Michel, Mark J McBride
Comprehension of the degradation of macroalgal polysaccharides suffers from the lack of genetic tools for model marine bacteria, despite their importance for coastal ecosystem functions. We developed such tools for Zobellia galactanivorans, an algae-associated flavobacterium that digests many polysaccharides, including alginate. These tools were used to investigate the biological role of AlyA1, the only Z. galactanivorans alginate lyase known to be secreted in soluble form and to have a recognizable carbohydrate-binding domain...
February 15, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28205281/growth-hormone-modulates-in-vitro-endothelial-cell-migration-and-formation-of-capillary-like-structures
#11
Cícero Fagner Messias de Lima, Maria Danielma Dos Santos Reis, Fernando Wagner da Silva Ramos, Silvana Ayres-Martins, Salete Smaniotto
The generation of new blood vessels is a complex process mediated by a variety of growth factors, and the growth hormone (GH) has been shown to act as a proangiogenic factor. In fact, human GH deficiency or excess are associated with endothelial dysfunction. Moreover, mouse models have revealed the action of GH in both tissue repair and in the microvascular circulation of normal tissues. In this study, we investigated the in vitro effects of GH on endothelial cells. Using a murine endothelioma cell line (tEnd...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28205242/one-way-or-another-iron-uptake-in-plants
#12
Huei-Hsuan Tsai, Wolfgang Schmidt
Iron (Fe) and phosphorus (P), the latter taken up by plants as phosphate (Pi), are two essential nutrients that determine species distribution and often limit crop yield as a result of their low availability in most soils. Pi-deficient plants improve the interception of Pi by increasing the density of root hairs, thereby expanding the volume of soil to be explored. The increase in root hair frequency results mainly from attenuated primary root growth, a process that was shown to be dependent on the availability of external Fe...
February 16, 2017: New Phytologist
https://www.readbyqxmd.com/read/28205048/mild-orotic-aciduria-in-umps-heterozygotes-a-metabolic-finding-without-clinical-consequences
#13
Saskia B Wortmann, Margaret A Chen, Roberto Colombo, Alessandro Pontoglio, Bader Alhaddad, Lorenzo D Botto, Tatiana Yuzyuk, Curtis R Coughlin, Maria Descartes, Stephanie Grűnewald, Bruno Maranda, Philippa B Mills, James Pitt, Catherine Potente, Richard Rodenburg, Leo A J Kluijtmans, Srirangan Sampath, Emil F Pai, Ron A Wevers, George E Tiller
BACKGROUND: Elevated urinary excretion of orotic acid is associated with treatable disorders of the urea cycle and pyrimidine metabolism. Establishing the correct and timely diagnosis in a patient with orotic aciduria is key to effective treatment. Uridine monophosphate synthase is involved in de novo pyrimidine synthesis. Uridine monophosphate synthase deficiency (or hereditary orotic aciduria), due to biallelic mutations in UMPS, is a rare condition presenting with megaloblastic anemia in the first months of life...
February 15, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28204951/possible-role-of-zinc-in-diminishing-lead-related-occupational-stress-a-zinc-nutrition-concern
#14
Ab Latif Wani, Ajaz Ahmad, G G H A Shadab, Jawed Ahmad Usmani
Lead and zinc are mostly present at the same occupational source and usually found as co-contaminants. Lead is known to associate with detrimental effects to humans. Zinc however is an essential nutrient and its deficiency causes debilitating effects on growth and development. Besides, it acts as core ion of important enzymes and proteins. The purpose of this study was to examine if zinc concentrations are associated with blood lead levels and if zinc may prevent lead-induced DNA damage. Blood samples were collected from 92 workers as participants occupationally exposed to lead or lead and zinc and 38 comparison participants having no history of such exposure...
February 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28204828/tieg1-deficiency-confers-enhanced-myocardial-protection-in-the-infarcted-heart-by-mediating-the-pten-akt-signalling-pathway
#15
Mingqiu Cen, Pengfei Hu, Zhaobin Cai, Tianfu Fang, Jiancheng Zhang, Ming Lu
The transforming growth factor (TGF)-β-inducible early gene-1 (TIEG1) plays a crucial role in modulating cell apoptosis and proliferation in a number of diseases, including pancreatic cancer, leukaemia and osteoporosis. However, the functional role of TIEG1 in the heart has not been fully defined. In this study, we first investigated the role of TIEG1 in ischaemic heart disease. For in vitro experiments, cardiomyocytes were isolated from both TIEG1 knockout (KO) and wile-type (WT) mice, and the apoptotic ratios were evaluated after a 48‑h ischaemic insult...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28202529/aberrant-syk-kinase-signaling-is-essential-for-tumorigenesis-induced-by-tsc2-inactivation
#16
Ye Cui, Wendy K Steagall, Anthony Lamattina, Gustavo Pacheco-Rodriguez, Mario Stylianou, Pranav Kidambi, Benjamin Stump, Fernanda Golzarri, Ivan O Rosas, Carmen Priolo, Elizabeth P Henske, Joel Moss, Souheil El-Chemaly
Somatic or germline mutations in the tuberous sclerosis complex (TSC) tumor suppressor genes are associated closely with the pathogenesis of lymphangioleiomyomatosis (LAM), a rare and progressive neoplastic disease that predominantly affects women in their childbearing years. Serum levels of the lymphangiogeneic growth factor VEGF-D are elevated significantly in LAM. However, there are gaps in knowledge regarding VEGF-D dysregulation and its cellular origin in LAM. Here we show that increased expression and activation of the tyrosine kinase Syk in TSC2-deficient cells and pulmonary nodules from LAM patients contributes to tumor growth...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28202522/histone-acetyltransferase-activity-of-mof-is-required-for-mll-af9-leukemogenesis
#17
Daria G Valerio, Haiming Xu, Chun-Wei Chen, Takayuki Hoshii, Meghan E Eisold, Christopher Delaney, Monica Cusan, Aniruddha J Deshpande, Chun-Hao Huang, Amaia Lujambio, Y George G Zheng, Johannes Zuber, Tej K Pandita, Scott W Lowe, Scott A Armstrong
Chromatin-based mechanisms offer therapeutic targets in acute myeloid leukemia (AML) that are of great current interest. In this study, we conducted an RNAi-based screen to identify druggable chromatin regulator-based targets in leukemias marked by oncogenic rearrangements of the MLL gene. In this manner, we discovered the H4K16 histone acetyltransferase (HAT) MOF to be a potent suppressor of leukemia cell growth. Conditional deletion of Mof in a mouse model of MLL-AF9-driven leukemogenesis reduced tumor burden and prolonged host survival...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28201978/multiple-myeloma-and-the-immune-microenvironment
#18
Yawara Kawano, Aldo M Roccaro, Jamil Azzi, Irene M Ghobrial
One of the great advances in the field of cancer therapy in recent years is the emergence of immune therapies. Immune therapies, especially immune checkpoint inhibitors, have shown promising results in pre-clinical models and clinical trials of solid tumors, such as melanoma, breast cancer and lung cancer. Therapeutic strategies targeting the immune microenvironment have also been applied to hematological malignancies such as multiple myeloma (MM), a plasma cell neoplasia characterized by clonal expansion of malignant plasma cells mainly in the bone marrow (BM)...
February 13, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28201598/a-randomized-phase-2-study-of-long-acting-transcon-growth-hormone-vs-daily-gh-in-childhood-gh-deficiency
#19
Pierre Chatelain, Oleg Malievsky, Klaudziya Radziuk, Ganna Senatorova, Magdy O Abdou, Elpis Vlachopapadopolou, Yulia Skorodok, Valentina Peterkova, Jonathan A Leff, Michael Beckert
No abstract text is available yet for this article.
February 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28199901/cd44-deficiency-enhanced-streptococcus-equi-ssp-zooepidemicus-dissemination-and-inflammation-response-in-a-mouse-model
#20
Qiang Fu, Pingping Xiao, Yaosheng Chen, Zigong Wei, Xiaohong Liu
Streptococcus equi ssp. zooepidemicus (S. zooepidemicus) is responsible for peritonitis, septicemia, meningitis, arthritis and several other serious diseases in various species. Recent studies have demonstrated that CD44 is implicated in the process of host defense against pathogenic microorganisms. In the present study, the role of CD44 in the host response to S. zooepidemicus infection was investigated in a mouse model. Upon intraperitoneal infection with S. zooepidemicus, the expression of CD44 on the peritoneal exudate cells from wild-type (WT) mice was increased...
February 9, 2017: Research in Veterinary Science
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