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https://www.readbyqxmd.com/read/28550448/towards-xeno-free-cultures-of-human-limbal-stem-cells-for-ocular-surface-reconstruction
#1
Zala Lužnik, Claudia Breda, Vanessa Barbaro, Stefano Ferrari, Angelo Migliorati, Enzo Di Iorio, Barbara Ferrari, Carlo Griffoni, Andrea Grassetto, Hossein Mostafa Elbadawy, Marina Bertolin
Isolated limbal epithelial stem cells (LESCs) were cultured with or without a 3T3 murine fibroblast feeder-layer (FL) in 4 different culture media on culture plates or on denuded human amniotic membrane (AM) support and fibrin gel support: (1) control medium supplemented with fetal bovine serum; (2) control medium supplemented with the synthetic serum "XerumFree™ XF205" (XF); (3) CnT-20 medium supplemented with "XerumFree™ XF205" (CnT-XF) and (4) CnT-20 medium supplemented with human AB serum (CnT-AB). The three xenogeneic media were compared to standard condition (control + FL) and parameters assessed included cell morphology, proliferative potential, number of passages, assessment of clonogenic and abortive colonies, life span, ∆Np63α expression and epithelial morphology on AM...
May 26, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28550203/socs1-is-a-key-molecule-that-prevents-regulatory-t-cell-plasticity-under-inflammatory-conditions
#2
Reiko Takahashi, Hiroko Nakatsukasa, Shunichi Shiozawa, Akihiko Yoshimura
We previously showed that regulatory T cells (Tregs) from T cell-specific Socs1-deficient mice (Socs1(fl/fl)Lck-Cre(+) mice) easily convert into Th1- or Th17-like cells (ex-Tregs), which lose Foxp3 expression and suppressive functions in vivo. Because Tregs in Socs1(fl/fl)Lck-Cre(+) mice are constantly exposed to a large amount of inflammatory cytokines produced by non-Tregs in vivo, in this study we analyzed Treg-specific Socs1-deficient mice (Socs1(fl/fl)Foxp3(YFP-Cre) mice). These mice developed dermatitis, splenomegaly, and lymphadenopathy that were much milder than those in Socs1(fl/fl)Lck-Cre(+) mice...
May 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28549604/effects-of-eight-different-ligament-property-datasets-on-biomechanics-of-a-lumbar-l4-l5-finite-element-model
#3
S Naserkhaki, N Arjmand, A Shirazi-Adl, F Farahmand, M El-Rich
Ligaments assist trunk muscles in balancing external moments and providing spinal stability. In absence of the personalized material properties for ligaments, finite element (FE) models use dispersed data from the literature. This study aims to investigate the relative effects of eight different ligament property datasets on FE model responses. Eight L4-L5 models distinct only in ligament properties were constructed and loaded under moment (15Nm) alone or combined with a compressive follower load (FL). Range of motions (RoM) of the disc-alone model matched well in vitro data...
May 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28547986/simultaneous-occurrence-of-pancreatic-mixed-acinar-ductal-adenocarcinoma-and-primary-follicular-lymphoma-of-the-duodenum-accompanied-by-increased-number-of-igg4-plasma-cells-in-tumor-free-parenchyma-as-concomitant-igg4-related-disease-or-reaction-to-tumor-a
#4
Branislava Ranković, Clara Limbaeck-Stokin, Mihajlo Đokić, Dragoje Stanisavljević, Metka Volavšek
Mixed acinar-ductal carcinoma is rare among pancreatic cancers, as is duodenal involvement in follicular lymphoma (FL). Although usually a systemic disease, primary FL of the duodenum occurs, with superficial involvement of the intestinal wall and low risk of progression. We report on a unique case of mixed ductal-acinar carcinoma of the pancreatic head accompanied by low-grade duodenal FL and autoimmune pancreatitis-like changes in adjacent pancreatic parenchyma. To our knowledge this is the first report of concomitant pancreatic mixed acinar-ductal carcinoma and duodenal FL...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28546423/overexpression-of-kinase-dead-mtor-impairs-glucose-homeostasis-by-regulating-insulin-secretion-and-not-%C3%AE-cell-mass
#5
Emilyn U Alejandro, Nadejda Bozadjieva, Manuel Blandino-Rosano, Michelle Ann Wasan, Lynda Elghazi, Suryakiran Vadrevu, Leslie Satin, Ernesto Bernal-Mizrachi
Regulation of glucose homeostasis by insulin depends on β-cell growth and function. Nutrients and growth factors stimuli converge on the conserved protein kinase mechanistic target of rapamycin (mTOR), existing in two complexes mTORC1 and mTORC2. To understand the functional relevance of mTOR enzymatic activity in β-cell development and in glucose homeostasis, we generated mice overexpressing either one or two copies of a kinase-dead mTOR mutant (KD-mTOR) transgene exclusively in β-cells. We examined glucose homeostasis and β-cell function of these mice in control chow and in high-fat diet (HFD)...
May 25, 2017: Diabetes
https://www.readbyqxmd.com/read/28544679/sima-a-simplified-migration-assay-for-analyzing-neutrophil-migration
#6
Markus Weckmann, Tim Becker, Gyde Nissen, Martin Pech, Matthias V Kopp
In lung inflammation, neutrophils are the first leukocytes migrating to an inflammatory site, eliminating pathogens by multiple mechanisms. The term "migration" describes several stages of neutrophil movement to reach the site of inflammation, of which the passage of the interstitium and basal membrane of the airway are necessary to reach the site of bronchial inflammation. Currently, several methods exist (e.g., Boyden Chamber, under-agarose assay, or microfluidic systems) to assess neutrophil mobility. However, these methods do not allow for parameterization on single cell level, that is, the individual neutrophil pathway analysis is still considered challenging...
May 19, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28540771/identifying-therapeutic-targets-for-alzheimer-s-disease-with-big-data
#7
Nilüfer Ertekin-Taner
Nilüfer Ertekin-Taner is a Professor of Neuroscience and Neurology at the Mayo Clinic, Jacksonville, FL, USA. A neurogeneticist and board-certified behavioral neurologist, she received her medical degree from Hacettepe University Medical School in Ankara, Turkey and her doctorate degree in Molecular Neuroscience from Mayo Graduate School. She completed her residency training in the Department of Neurology at Mayo Clinic in Rochester (MN, USA) and fellowship in Behavioral Neurology at Mayo Clinic in Jacksonville...
April 2017: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/28539898/speak-my-language-and-i-will-remember-your-face-better-an-erp-study
#8
Cristina Baus, Jesús Bas, Marco Calabria, Albert Costa
Here we investigated how the language in which a person addresses us, native or foreign, influences subsequent face recognition. In an old/new paradigm, we explored the behavioral and electrophysiological activity associated with face recognition memory. Participants were first presented with faces accompanied by voices speaking either in their native (NL) or foreign language (FL). Faces were then presented in isolation and participants decided whether the face was presented before (old) or not (new). The results revealed that participants were more accurate at remembering faces previously paired with their native as opposed to their FL...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28539837/ezh2-acts-as-a-tumor-suppressor-in-kras-driven-lung-adenocarcinoma
#9
Yanxiao Wang, Ning Hou, Xuan Cheng, Jishuai Zhang, Xiaohong Tan, Chong Zhang, Yuling Tang, Yan Teng, Xiao Yang
Previous studies have suggested that enhancer zeste homolog 2 (Ezh2), a histone methyltransferase subunit of polycomb repressive complex 2 (PRC2), acts as an oncogene in lung adenocarcinoma (ADC) development. However, we found that in human lung ADC samples, deletion and mutations of EZH2 were also frequently present, with 14% of patients harboring loss-of-function EZH2 alterations. To explore the effect of Ezh2 loss on lung tumor formation, lung epithelial Ezh2 gene was deleted in Kras-driven lung ADC mouse model...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28539333/endothelial-markers-expressing-stromal-cells-are-critical-for-kidney-formation
#10
Elina Mukherjee, Katherine Virginia Maringer, Emily Papke, Daniel S Bushnell, Caitlin M Schaefer, Rafael Kramann, Jacqueline Ho, Benjamin D Humphreys, Carlton M Bates, Sunder Sims-Lucas
Kidneys are highly vascularized and contain many distinct vascular beds. However, the origins and roles of developing renal endothelial cells in the formation of the kidney are unclear. We have shown that the Foxd1-positive renal stroma gives rise to endothelial marker expressing progenitors that are incorporated within a subset of peritubular capillaries; however, the significance of these cells is unclear. The purpose of this study was to determine whether deletion of Flk1 in the Foxd1 stroma was important for renal development...
May 24, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28538680/diazonium-salt-based-surface-enhanced-raman-spectroscopy-nanosensor-detection-and-quantitation-of-aromatic-hydrocarbons-in-water-samples
#11
Inga Tijunelyte, Stéphanie Betelu, Jonathan Moreau, Ioannis Ignatiadis, Catherine Berho, Nathalie Lidgi-Guigui, Erwann Guénin, Catalina David, Sébastien Vergnole, Emmanuel Rinnert, Marc Lamy de la Chapelle
Here, we present a surface-enhanced Raman spectroscopy (SERS) nanosensor for environmental pollutants detection. This study was conducted on three polycyclic aromatic hydrocarbons (PAHs): benzo[a]pyrene (BaP), fluoranthene (FL), and naphthalene (NAP). SERS substrates were chemically functionalized using 4-dodecyl benzenediazonium-tetrafluoroborate and SERS analyses were conducted to detect the pollutants alone and in mixtures. Compounds were first measured in water-methanol (9:1 volume ratio) samples. Investigation on solutions containing concentrations ranging from 10(-6) g L(-1) to 10(-3) g L(-1) provided data to plot calibration curves and to determine the performance of the sensor...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538663/the-cytokine-flt3-ligand-in-normal-and-malignant-hematopoiesis
#12
REVIEW
Panagiotis Tsapogas, Ciaran James Mooney, Geoffrey Brown, Antonius Rolink
The cytokine Fms-like tyrosine kinase 3 ligand (FL) is an important regulator of hematopoiesis. Its receptor, Flt3, is expressed on myeloid, lymphoid and dendritic cell progenitors and is considered an important growth and differentiation factor for several hematopoietic lineages. Activating mutations of Flt3 are frequently found in acute myeloid leukemia (AML) patients and associated with a poor clinical prognosis. In the present review we provide an overview of our current knowledge on the role of FL in the generation of blood cell lineages...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28534374/rituximab-in-the-therapy-of-stage-iii-and-iv-follicular-lymphoma-results-of-the-reflect-1-study-of-the-serbian-lymphoma-group
#13
Stevan Popovic, Darjana Jovanovic, Biljana Mihaljevic, Nebojsa Andjelkovic, Goran Marjanovic, Dragomir Marisavljevic, Nada Vlaisavljevic, Lazar Popovic, Svetlana Salma, Danijela Agic, Rajko Milosevic, Mihajlo Smiljanic, Snezana Sretenović, Predrag Djurdjević, Olivera Markovic, Jelena Hajder, Nenad Govedarovic
PURPOSE: Follicular lymphoma (FL) is an indolent lymphoma that responds well to rituximab+chemotherapy. We evaluated the prognosis and efficacy of immunochemotherapy in patients with previously untreated, advanced FL. METHODS: REFLECT 1 is a multicentre, prospective study of 99 patients with previously untreated FL stage III-IV. All patients were treated with rituximab+chemotherapy x 6 cycles, plus 2 cycles of rituximab monotherapy. Clinical assessment was performed at baseline, after completion of the first 6 cycles of therapy and every 3 months from the end of immunochemotherapy to the end of the study period...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28533268/the-transcription-factor-gli3-promotes-b-cell-development-in-fetal-liver-through-repression-of-shh
#14
Anisha Solanki, Ching-In Lau, José Ignacio Saldaña, Susan Ross, Tessa Crompton
Before birth, B cells develop in the fetal liver (FL). In this study, we show that Gli3 activity in the FL stroma is required for B cell development. In the Gli3-deficient FL, B cell development was reduced at multiple stages, whereas the Sonic hedgehog (Hh [Shh])-deficient FL showed increased B cell development, and Gli3 functioned to repress Shh transcription. Use of a transgenic Hh-reporter mouse showed that Shh signals directly to developing B cells and that Hh pathway activation was increased in developing B cells from Gli3-deficient FLs...
May 22, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28533060/autologous-stem-cell-transplantation-for-follicular-lymphoma-favourable-long-term-survival-irrespective-of-pre-transplant-rituximab-exposure
#15
Ana Jiménez-Ubieto, Carlos Grande, Dolores Caballero, Lucrecia Yáñez, Silvana Novelli, Miguel Teodoro Hernández-Garcia, María Manzanares, Reyes Arranz, José Javier Ferreiro, Sabella Bobillo, Santiago Mercadal, Andrea Galeo, Javier López Jiménez, José María Moraleda, Carlos Vallejo, Carmen Albo, Elena Pérez, Carmen Marrero, Laura Magnano, Luis Palomera, Isidro Jarque, Pilar Martínez-Sánchez, Alejandro Martín, Erika Coria, Armando López-Guillermo, Antonio Salar, Juan José Lahuerta
High-dose chemotherapy supported by autologous stem cell transplantation (HDT/ASCT) has contributed to modify the natural history of follicular lymphoma (FL). However, an overall survival (OS) benefit has only been demonstrated at relapse after a rituximab free chemotherapy regimen. A total of 655 FL patients were reported to the Spanish GELTAMO registry and received their first ASCT between 1989 and 2007. 203 patients received ASCT in first complete response (CR1), 174 in CR2, 28 in third CR3, 140 in first partial response (PR1), 81 in subsequent PR, and 29 with resistant/refractory disease; 184 patients received rituximab prior to ASCT...
May 19, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28531870/an-unusual-case-of-jaundice-biliary-tumor-thrombus-in-fibrolamellar-hepatocellular-carcinoma
#16
Jairo A Espinosa, Alex Merlo, Mohamed-Omar Arafeh, Gitonga Munene
BACKGROUND: Fibrolamellar hepatocellular carcinoma (FL-HCC) is a rare and unique variant of hepatocellular carcinoma (HCC) whose presentation remains inadequately described. We present a resectable case of FL-HCC which involved tumor thrombus of the common bile duct. PRESENTATION: A 27 year-old male presenting with jaundice, abdominal pain, vomiting, hepatic dysfunction and hyperbilirubinemia was found to have a large liver mass and lymphadenopathy on preoperative imaging...
May 12, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28530668/radioimmunotherapy-augmented-beam-chemotherapy-vs-beam-alone-as-the-high-dose-regimen-for-autologous-stem-cell-transplantation-asct-in-relapsed-follicular-lymphoma-fl-a-retrospective-study-of-the-ebmt-lymphoma-working-party
#17
L Bento, A Boumendil, H Finel, S Le Gouill, S Amorim, H Monjanel, R Bouabdallah, J O Bay, E Nicolas-Virelizier, G McQuaker, G Rossi, R Johnson, A Huynh, P Ceballos, A Rambaldi, E Bachy, R Malladi, K Orchard, D Pohlreich, H Tilly, F Bonifazi, X Poiré, F Guilhot, A Haenel, C Crawley, B Metzner, J Gribben, N H Russell, G Damaj, K Thomson, P Dreger, S Montoto
Relapse remains the most common cause of treatment failure in patients receiving autologous stem cell transplantation (ASCT) for follicular lymphoma (FL). The aim of this study was to evaluate the effect of adding radioimmunotherapy or rituximab (R) to BEAM (carmustine, etoposide, ara-c, melphalan) high-dose therapy for ASCT in patients with relapsed FL. Using the European Society for Blood and Marrow Transplantation registry, we conducted a cohort comparison of BEAM (n=1973), Zevalin-BEAM (Z-BEAM) (n=207) and R-BEAM (n=179) and also a matched-cohort analysis of BEAM vs Z-BEAM including 282 and 154 patients, respectively...
May 22, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28527696/essential-roles-of-g9a-in-cell-proliferation-and-differentiation-during-tooth-development
#18
Taichi Kamiunten, Hisashi Ideno, Akemi Shimada, Yoshinori Arai, Tatsuo Terashima, Yasuhiro Tomooka, Yoshiki Nakamura, Kazuhisa Nakashima, Hiroshi Kimura, Yoichi Shinkai, Makoto Tachibana, Akira Nifuji
Teeth develop through interactions between epithelial and mesenchymal tissues mediated by a signaling network comprised of growth factors and transcription factors However, little is known about how epigenetic modifiers affect signaling pathways and thereby regulate tooth formation. We previously reported that the histone 3 lysine 9 (H3K9) methyltransferase (MTase) G9a is specifically enriched in the tooth mesenchyme during mouse development. In this study, we investigated the functions of G9a in tooth development using G9a conditional knockout (KO) mice...
May 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28527584/a-combined-passive-and-active-musculoskeletal-model-study-to-estimate-l4-l5-load-sharing
#19
F Azari, N Arjmand, A Shirazi-Adl, T Rahimi-Moghaddam
A number of geometrically-detailed passive finite element (FE) models of the lumbar spine have been developed and validated under in vitro loading conditions. These models are devoid of muscles and thus cannot be directly used to simulate in vivo loading conditions acting on the lumbar joint structures or spinal implants. Gravity loads and muscle forces estimated by a trunk musculoskeletal (MS) model under twelve static activities were applied to a passive FE model of the L4-L5 segment to estimate load sharing among the joint structures (disc, ligaments, and facets) under simulated in vivo loading conditions...
May 11, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28522984/applicability-of-the-compensatory-encoding-model-in-foreign-language-reading-an-investigation-with-chinese-college-english-language-learners
#20
Feifei Han
While some first language (L1) reading models suggest that inefficient word recognition and small working memory tend to inhibit higher-level comprehension processes; the Compensatory Encoding Model maintains that slow word recognition and small working memory do not normally hinder reading comprehension, as readers are able to operate metacognitive strategies to compensate for inefficient word recognition and working memory limitation as long as readers process a reading task without time constraint. Although empirical evidence is accumulated for support of the Compensatory Encoding Model in L1 reading, there is lack of research for testing of the Compensatory Encoding Model in foreign language (FL) reading...
2017: Frontiers in Psychology
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