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claudin-5 gene

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https://www.readbyqxmd.com/read/28214040/reinforcement-of-intestinal-epithelial-barrier-by-arabinoxylans-in-overweight-and-obese-subjects-a-randomized-controlled-trial-arabinoxylans-in-gut-barrier
#1
Bouke N Salden, Freddy J Troost, Ellen Wilms, Pilar Truchado, Ramiro Vilchez-Vargas, Dietmar H Pieper, Ruy Jáuregui, Massimo Marzorati, Tom van de Wiele, Sam Possemiers, Ad A Masclee
BACKGROUND & AIMS: Obesity and metabolic diseases are associated with alterations in microbial composition and impaired gut barrier. Previous in vitro and animal studies have shown that arabinoxylans (AX) have the potential to modulate gut microbiota and gut barrier and therefore could have a protective role. Primary aim of the study was to investigate the effect of AX on intestinal permeability. Secondary aims included the effect of AX on gene transcription and protein expression of tight junctions (TJ), intestinal microbiota composition and activity, immune response and metabolic markers in overweight and obese individuals...
February 3, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28193461/gill-structural-integrity-changes-in-fish-deficient-or-excessive-in-dietary-isoleucine-towards-the-modulation-of-tight-junction-protein-inflammation-apoptosis-and-antioxidant-defense-via-nf-%C3%AE%C2%BAb-tor-and-nrf2-signaling-pathways
#2
Lin Feng, Lu Gan, Wei-Dan Jiang, Pei Wu, Yang Liu, Jun Jiang, Ling Tang, Sheng-Yao Kuang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou
This study firstly aimed to test the impact of dietary isoleucine (Ile) on tight junction protein, inflammation, apoptosis, antioxidant defense and related signaling molecule gene expression in the gill of fish. Young grass carp (Ctenopharyngodon idella) (weighing 256.8 ± 3.5 g) were fed six diets containing graded levels of Ile, namely, 3.8, 6.6, 9.3, 12.5, 15.2 and 18.5 g/kg diet for 8 weeks. The results firstly revealed that Ile deficiency down-regulated the mRNA expressions of claudin-3, claudin-b, claudin-c, occludin and zonula occludens-1 (ZO-1) and up-regulated the mRNA expression of claudin-12, which led to the intercellular structure damage of fish gill...
February 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28190892/slit2-robo4-signaling-potential-role-of-a-vegf-antagonist-pathway-to-regulate-luteal-permeability
#3
I Bekes, V Haunerdinger, R Sauter, I Holzheu, W Janni, A Wöckel, C Wulff
Introduction The corpus luteum (CL) is dependent on luteal vascular permeability, which is controlled by human chorionic gonadotropin (hCG) via vascular endothelial growth factor (VEGF). In this study we investigated the role of a potential VEGF antagonist pathway - Slit2/Robo4 - and its influence on endothelial cell adhesion. Materials and Methods Luteinized granulosa cells (LGCs) were stimulated with hCG in the absence or presence of a VEGF inhibitor. The expression of VEGF and Slit2 were measured. Human umbilical vein endothelial cells (HUVECs) were stimulated with Slit2 or VEGF, and gene expressions of cadherin 5 (CDH5) and claudin 5 (CLDN5) were measured...
January 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28185956/long-non-coding-rna-neat1-regulates-permeability-of-the-blood-tumor-barrier-via-mir-181d-5p-mediated-expression-changes-in-zo-1-occludin-and-claudin-5
#4
Junqing Guo, Heng Cai, Jun Ma, Xiaobai Liu, Yunhui Liu, Jian Zheng, Zhongyou Que, Wei Gong, Yana Gao, Wei Tao, Yixue Xue
The blood-tumor barrier (BTB) constitutes an efficient organization of tight junctions that limits the delivery of chemotherapeutic drugs to brain tumor tissues and impacts the treatment of glioma. Long non-coding RNAs (lncRNAs) are non-protein coding RNAs regulating gene expression, some lncRNAs play a crucial role in BTB permeability. However, the function of lncRNAs in BTB permeability is still largely unclear. Here, we have identified lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1), was remarkably up-regulated in glioma endothelial cells (GECs) obtained from an in vitro BTB model...
February 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28132653/a-cafeteria-diet-triggers-intestinal-inflammation-and-oxidative-stress-in-obese-rats
#5
K Gil-Cardoso, I Ginés, M Pinent, A Ardévol, X Terra, M Blay
The gastrointestinal alterations associated with the consumption of an obesogenic diet, such as inflammation, permeability impairment and oxidative stress, have been poorly explored in both diet-induced obesity (DIO) and genetic obesity. The aim of the present study was to examine the impact of an obesogenic diet on the gut health status of DIO rats in comparison with the Zucker (fa/fa) rat leptin receptor-deficient model of genetic obesity over time. For this purpose, female Wistar rats (n 48) were administered a standard or a cafeteria diet (CAF diet) for 12, 14·5 or 17 weeks and were compared with fa/fa Zucker rats fed a standard diet for 10 weeks...
January 30, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28063233/establishment-of-a-new-conditionally-immortalized-human-skeletal-muscle-microvascular-endothelial-cell-line
#6
Hironori Sano, Yasuteru Sano, Eri Ishiguchi, Fumitaka Shimizu, Masatoshi Omoto, Toshihiko Maeda, Hideaki Nishihara, Yukio Takeshita, Shiori Takahashi, Mariko Oishi, Takashi Kanda
In skeletal muscle, the capillaries have tight junctions (TJs) that are structurally similar to those in the blood-brain barrier (BBB) and blood-nerve barrier (BNB). Although many findings have been clarified in the territory of BBB and BNB, few have so far examined the TJs of capillaries in the skeletal muscle. In addition, no in vitro human skeletal muscle microvasculature models have been reported thus far. We newly established a new human skeletal muscle microvascular endothelial cell (HSMMEC) line. HSMMECs were isolated from human skeletal muscle and were infected with retroviruses harboring temperature-sensitive SV40 T antigen and telomerase genes...
January 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27999452/microrna-regulation-of-endothelial-junction-proteins-and-clinical-consequence
#7
REVIEW
Yugang Zhuang, Hu Peng, Victoria Mastej, Weiguo Chen
Cellular junctions play a critical role in structural connection and signal communication between cells in various tissues. Although there are structural and functional varieties, cellular junctions include tight junctions, adherens junctions, focal adhesion junctions, and tissue specific junctions such as PECAM-1 junctions in endothelial cells (EC), desmosomes in epithelial cells, and hemidesmosomes in EC. Cellular junction dysfunction and deterioration are indicative of clinical diseases. MicroRNAs (miRNA) are ~20 nucleotide, noncoding RNAs that play an important role in posttranscriptional regulation for almost all genes...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27982694/cigarette-smoke-and-decreased-oxygen-tension-inhibit-pulmonary-claudin-6-expression
#8
Felix R Jimenez, Josh B Lewis, Samuel T Belgique, Dallin C Milner, Adam L Lewis, Todd M Dunaway, Kaleb M Egbert, Duane R Winden, Juan A Arroyo, Paul R Reynolds
PURPOSE: Chronic obstructive pulmonary disease is a condition involving perturbed barrier integrity coincident with both emphysema and inflammation of the airways, and smoking is considered a major risk factor. Claudins (Cldns) stabilize barriers and contribute to tight junctions by preventing paracellular transport of extracellular fluid constituents. METHODS: To determine Cldn6 was differentially influenced by tobacco smoke, Cldn6 was evaluated in cells and tissues by q-PCR, immunoblotting, and immunohistochemistry following exposure...
December 16, 2016: Experimental Lung Research
https://www.readbyqxmd.com/read/27957319/blood-brain-barrier-and-intestinal-epithelial-barrier-alterations-in-autism-spectrum-disorders
#9
Maria Fiorentino, Anna Sapone, Stefania Senger, Stephanie S Camhi, Sarah M Kadzielski, Timothy M Buie, Deanna L Kelly, Nicola Cascella, Alessio Fasano
BACKGROUND: Autism spectrum disorders (ASD) are complex conditions whose pathogenesis may be attributed to gene-environment interactions. There are no definitive mechanisms explaining how environmental triggers can lead to ASD although the involvement of inflammation and immunity has been suggested. Inappropriate antigen trafficking through an impaired intestinal barrier, followed by passage of these antigens or immune-activated complexes through a permissive blood-brain barrier (BBB), can be part of the chain of events leading to these disorders...
2016: Molecular Autism
https://www.readbyqxmd.com/read/27915449/common-variants-in-cldn14-are-associated-with-differential-excretion-of-magnesium-over-calcium-in-urine
#10
REVIEW
Tanguy Corre, Eric Olinger, Sarah E Harris, Michela Traglia, Sheila Ulivi, Stefania Lenarduzzi, Hendrica Belge, Sonia Youhanna, Natsuko Tokonami, Olivier Bonny, Pascal Houillier, Ozren Polasek, Ian J Deary, John M Starr, Daniela Toniolo, Paolo Gasparini, Peter Vollenweider, Caroline Hayward, Murielle Bochud, Olivier Devuyst
The nature and importance of genetic factors regulating the differential handling of Ca(2+) and Mg(2+) by the renal tubule in the general population are poorly defined. We conducted a genome-wide meta-analysis of urinary magnesium-to-calcium ratio to identify associated common genetic variants. We included 9320 adults of European descent from four genetic isolates and three urban cohorts. Urinary magnesium and calcium concentrations were measured centrally in spot urine, and each study conducted linear regression analysis of urinary magnesium-to-calcium ratio on ~2...
January 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27904960/active-and-passive-involvement-of-claudins-in-the-pathophysiology-of-intestinal-inflammatory-diseases
#11
REVIEW
Christian Barmeyer, Michael Fromm, Jörg-Dieter Schulzke
Intestinal inflammatory diseases, four of which are discussed here, are associated with alterations of claudins. In ulcerative colitis, diarrhea and antigen entry into the mucosa occurs. Claudin-2 is upregulated but data on other claudins are still limited or vary (e.g., claudin-1 and -4). Apart from that, tight junction changes contribute to diarrhea via a leak flux mechanism, while protection against antigen entry disappears behind epithelial gross lesions (erosions) and apoptotic foci. Crohn's disease is additionally characterized by a claudin-5 and claudin-8 reduction which plays an active role in antigen uptake already before gross lesions appear...
January 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27873103/differential-regulation-of-angiogenic-cellular-processes-and-claudin-5-by-histamine-and-vegf-via-pi3k-signaling-transcription-factor-snai2-and-interleukin-8
#12
Johanna P Laakkonen, Jari P Lappalainen, Thomas L Theelen, Pyry I Toivanen, Tiina Nieminen, Suvi Jauhiainen, Minna U Kaikkonen, Judith C Sluimer, Seppo Ylä-Herttuala
AIMS: Histamine and vascular endothelial growth factor A (VEGF) are central regulators in vascular pathologies. Their gene regulation leading to vascular remodeling has remained obscure. In this study, EC regulation mechanisms of histamine and VEGF were compared by RNA sequencing of primary endothelial cells (ECs), functional in vitro assays and in vivo permeability mice model. METHODS AND RESULTS: By RNA sequencing, similar transcriptional alterations of genes involved in activation of primary ECs, cell proliferation and adhesion were observed between histamine and VEGF...
November 21, 2016: Angiogenesis
https://www.readbyqxmd.com/read/27802411/gene-expression-profile-in-heat-shocked-holstein-and-nelore-oocytes-and-cumulus-cells
#13
J S Ticianelli, I P Emanuelli, R A Satrapa, A C S Castilho, B Loureiro, M J Sudano, P K Fontes, R F P Pinto, E M Razza, R S Surjus, R Sartori, M E O A Assumpção, J A Visintin, C M Barros, F F Paula-Lopes
The present study determined the transcriptome profile in Nelore and Holstein oocytes subjected to heat shock during IVM and the mRNA abundance of selected candidate genes in Nelore and Holstein heat-shocked oocytes and cumulus cells (CC). Holstein and Nelore cows were subjected to in vivo follicle aspiration. Cumulus-oocyte complexes were assigned to control (38.5°C, 22h) or heat shock (41°C for 12h, followed by 38.5°C for 10h) treatment during IVM. Denuded oocytes were subjected to bovine microarray analysis...
November 2, 2016: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/27721799/genetic-association-studies-of-suicidal-behavior-a-review-of-the-past-10%C3%A2-years-progress-limitations-and-future-directions
#14
Bojan Mirkovic, Claudine Laurent, Marc-Antoine Podlipski, Thierry Frebourg, David Cohen, Priscille Gerardin
Suicidal behaviors (SBs), which range from suicidal ideation to suicide attempts and completed suicide, represent a fatal dimension of mental ill-health. The involvement of genetic risk factors in SB is supported by family, twin, and adoption studies. The aim of this paper is to review recent genetic association studies in SBs including (i) case-control studies, (ii) family-based association studies, and (iii) genome-wide association studies (GWAS). Various studies on genetic associations have tended to suggest that a number of genes [e...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27665022/overproduction-of-nitric-oxide-intensifies-brain-infarction-and-cerebrovascular-damage-through-reduction-of-claudin-5-and-zo-1-expression-in-striatum-of-ischemic-brain
#15
Mohammad Taghi Mohammadi
Nitric oxide (NO) overproduction has been demonstrated from different NO-synthase overexpression or hyperactivity after brain ischemia. Here, we examined the effects of inhibition of NO overproduction on brain infarction, cerebrovascular damage and expression of claudin-5 and zonula occludens-1 (ZO-1) in striatum of ischemic brain. The experiment was performed in three groups of rats; sham, control ischemia and ischemic treatment. Brain ischemia was induced by 60min of middle cerebral artery occlusion (MCAO) followed by 24h of reperfusion...
November 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27651022/molecular-pathology-of-pulmonary-edema-in-forensic-autopsy-cases-with-special-regard-to-fatal-methamphetamine-intoxication
#16
Yu Du, Hong-Nian Jin, Rui Zhao, Dong Zhao, Ye Xue, Bao-Li Zhu, Da-Wei Guan, Xiao-Li Xie, Qi Wang
Pulmonary edema is a common finding in fatal methamphetamine intoxication. However, the underlying mechanism remains poorly understood. This study investigated the molecular pathology of alveolar damage involving pulmonary edema in forensic autopsy cases. Seven candidate reference genes (RPL13A, YWHAZ, GUSB, SDHA, GAPDH, B2M, and ACTB) were evaluated in the lung by the geNorm module in qBase(plus) software. RPL13A, YWHAZ, and GUSB were identified as the most stable reference genes. Using these validated reference genes, intrapulmonary mRNA expressions of matrix metalloproteinases (MMPs), intercellular adhesion molecule-1 (ICAM-1), claudin-5 (CLDN-5), and aquaporins (AQPs) were examined...
November 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27601076/functional-mechanisms-underlying-pleiotropic-risk-alleles-at-the-19p13-1-breast-ovarian-cancer-susceptibility-locus
#17
Kate Lawrenson, Siddhartha Kar, Karen McCue, Karoline Kuchenbaeker, Kyriaki Michailidou, Jonathan Tyrer, Jonathan Beesley, Susan J Ramus, Qiyuan Li, Melissa K Delgado, Janet M Lee, Kristiina Aittomäki, Irene L Andrulis, Hoda Anton-Culver, Volker Arndt, Banu K Arun, Brita Arver, Elisa V Bandera, Monica Barile, Rosa B Barkardottir, Daniel Barrowdale, Matthias W Beckmann, Javier Benitez, Andrew Berchuck, Maria Bisogna, Line Bjorge, Carl Blomqvist, William Blot, Natalia Bogdanova, Anders Bojesen, Stig E Bojesen, Manjeet K Bolla, Bernardo Bonanni, Anne-Lise Børresen-Dale, Hiltrud Brauch, Paul Brennan, Hermann Brenner, Fiona Bruinsma, Joan Brunet, Shaik Ahmad Buhari, Barbara Burwinkel, Ralf Butzow, Saundra S Buys, Qiuyin Cai, Trinidad Caldes, Ian Campbell, Rikki Canniotto, Jenny Chang-Claude, Jocelyne Chiquette, Ji-Yeob Choi, Kathleen B M Claes, Linda S Cook, Angela Cox, Daniel W Cramer, Simon S Cross, Cezary Cybulski, Kamila Czene, Mary B Daly, Francesca Damiola, Agnieszka Dansonka-Mieszkowska, Hatef Darabi, Joe Dennis, Peter Devilee, Orland Diez, Jennifer A Doherty, Susan M Domchek, Cecilia M Dorfling, Thilo Dörk, Martine Dumont, Hans Ehrencrona, Bent Ejlertsen, Steve Ellis, Christoph Engel, Eunjung Lee, D Gareth Evans, Peter A Fasching, Lidia Feliubadalo, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Henrik Flyger, Lenka Foretova, Florentia Fostira, William D Foulkes, Brooke L Fridley, Eitan Friedman, Debra Frost, Gaetana Gambino, Patricia A Ganz, Judy Garber, Montserrat García-Closas, Aleksandra Gentry-Maharaj, Maya Ghoussaini, Graham G Giles, Rosalind Glasspool, Andrew K Godwin, Mark S Goldberg, David E Goldgar, Anna González-Neira, Ellen L Goode, Marc T Goodman, Mark H Greene, Jacek Gronwald, Pascal Guénel, Christopher A Haiman, Per Hall, Emily Hallberg, Ute Hamann, Thomas V O Hansen, Patricia A Harrington, Mikael Hartman, Norhashimah Hassan, Sue Healey, Florian Heitz, Josef Herzog, Estrid Høgdall, Claus K Høgdall, Frans B L Hogervorst, Antoinette Hollestelle, John L Hopper, Peter J Hulick, Tomasz Huzarski, Evgeny N Imyanitov, Claudine Isaacs, Hidemi Ito, Anna Jakubowska, Ramunas Janavicius, Allan Jensen, Esther M John, Nichola Johnson, Maria Kabisch, Daehee Kang, Miroslav Kapuscinski, Beth Y Karlan, Sofia Khan, Lambertus A Kiemeney, Susanne Kruger Kjaer, Julia A Knight, Irene Konstantopoulou, Veli-Matti Kosma, Vessela Kristensen, Jolanta Kupryjanczyk, Ava Kwong, Miguel de la Hoya, Yael Laitman, Diether Lambrechts, Nhu Le, Kim De Leeneer, Jenny Lester, Douglas A Levine, Jingmei Li, Annika Lindblom, Jirong Long, Artitaya Lophatananon, Jennifer T Loud, Karen Lu, Jan Lubinski, Arto Mannermaa, Siranoush Manoukian, Loic Le Marchand, Sara Margolin, Frederik Marme, Leon F A G Massuger, Keitaro Matsuo, Sylvie Mazoyer, Lesley McGuffog, Catriona McLean, Iain McNeish, Alfons Meindl, Usha Menon, Arjen R Mensenkamp, Roger L Milne, Marco Montagna, Kirsten B Moysich, Kenneth Muir, Anna Marie Mulligan, Katherine L Nathanson, Roberta B Ness, Susan L Neuhausen, Heli Nevanlinna, Silje Nord, Robert L Nussbaum, Kunle Odunsi, Kenneth Offit, Edith Olah, Olufunmilayo I Olopade, Janet E Olson, Curtis Olswold, David O'Malley, Irene Orlow, Nick Orr, Ana Osorio, Sue Kyung Park, Celeste L Pearce, Tanja Pejovic, Paolo Peterlongo, Georg Pfeiler, Catherine M Phelan, Elizabeth M Poole, Katri Pylkäs, Paolo Radice, Johanna Rantala, Muhammad Usman Rashid, Gad Rennert, Valerie Rhenius, Kerstin Rhiem, Harvey A Risch, Gus Rodriguez, Mary Anne Rossing, Anja Rudolph, Helga B Salvesen, Suleeporn Sangrajrang, Elinor J Sawyer, Joellen M Schildkraut, Marjanka K Schmidt, Rita K Schmutzler, Thomas A Sellers, Caroline Seynaeve, Mitul Shah, Chen-Yang Shen, Xiao-Ou Shu, Weiva Sieh, Christian F Singer, Olga M Sinilnikova, Susan Slager, Honglin Song, Penny Soucy, Melissa C Southey, Marie Stenmark-Askmalm, Dominique Stoppa-Lyonnet, Christian Sutter, Anthony Swerdlow, Sandrine Tchatchou, Manuel R Teixeira, Soo H Teo, Kathryn L Terry, Mary Beth Terry, Mads Thomassen, Maria Grazia Tibiletti, Laima Tihomirova, Silvia Tognazzo, Amanda Ewart Toland, Ian Tomlinson, Diana Torres, Thérèse Truong, Chiu-Chen Tseng, Nadine Tung, Shelley S Tworoger, Celine Vachon, Ans M W van den Ouweland, Helena C van Doorn, Elizabeth J van Rensburg, Laura J Van't Veer, Adriaan Vanderstichele, Ignace Vergote, Joseph Vijai, Qin Wang, Shan Wang-Gohrke, Jeffrey N Weitzel, Nicolas Wentzensen, Alice S Whittemore, Hans Wildiers, Robert Winqvist, Anna H Wu, Drakoulis Yannoukakos, Sook-Yee Yoon, Jyh-Cherng Yu, Wei Zheng, Ying Zheng, Kum Kum Khanna, Jacques Simard, Alvaro N Monteiro, Juliet D French, Fergus J Couch, Matthew L Freedman, Douglas F Easton, Alison M Dunning, Paul D Pharoah, Stacey L Edwards, Georgia Chenevix-Trench, Antonis C Antoniou, Simon A Gayther
A locus at 19p13 is associated with breast cancer (BC) and ovarian cancer (OC) risk. Here we analyse 438 SNPs in this region in 46,451 BC and 15,438 OC cases, 15,252 BRCA1 mutation carriers and 73,444 controls and identify 13 candidate causal SNPs associated with serous OC (P=9.2 × 10(-20)), ER-negative BC (P=1.1 × 10(-13)), BRCA1-associated BC (P=7.7 × 10(-16)) and triple negative BC (P-diff=2 × 10(-5)). Genotype-gene expression associations are identified for candidate target genes ANKLE1 (P=2 × 10(-3)) and ABHD8 (P<2 × 10(-3))...
September 7, 2016: Nature Communications
https://www.readbyqxmd.com/read/27598716/staphylococcus-aureus-mediated-blood-brain-barrier-injury-an-in-vitro-human-brain-microvascular-endothelial-cell-model
#18
Alisha McLoughlin, Keith D Rochfort, Cormac J McDonnell, Steven W Kerrigan, Philip M Cummins
Blood-brain barrier (BBB) disruption constitutes a hallmark event during pathogen-mediated neurological disorders such as bacterial meningitis. As a prevalent opportunistic pathogen, Staphylococcus aureus (SA) is of particular interest in this context, although our fundamental understanding of how SA disrupts the BBB is very limited. This paper employs in vitro infection models to address this. Human brain microvascular endothelial cells (HBMvECs) were infected with formaldehyde-fixed (multiplicity of infection [MOI] 0-250, 0-48 hr) and live (MOI 0-100, 0-3 hr) SA cultures...
September 6, 2016: Cellular Microbiology
https://www.readbyqxmd.com/read/27589012/utility-and-pitfalls-of-immunohistochemistry-in-the-differential-diagnosis-between-epithelioid-mesothelioma-and-poorly-differentiated-lung-squamous-cell-carcinoma
#19
Kei Kushitani, Vishwa J Amatya, Yasuko Okada, Yuya Katayama, Amany S Mawas, Yoshihiro Miyata, Morihito Okada, Kouki Inai, Takumi Kishimoto, Yukio Takeshima
AIMS: The aims of this study were to clarify the usefulness of immunohistochemistry in the differential diagnosis of epithelioid mesothelioma with a solid growth pattern [solid epithelioid mesothelioma (SEM)] and poorly differentiated squamous cell carcinoma (PDSCC), and to confirm the validity of a specific type of antibody panel. Additionally, we aimed to clarify the pitfalls of immunohistochemical analyses. METHODS AND RESULTS: Formalin-fixed paraffin-embedded specimens from 36 cases of SEM and 38 cases of PDSCC were immunohistochemically examined for calretinin, podoplanin (D2-40), Wilms' tumour gene product (WT1), cytokeratin (CK) 5/6, p40, p63, carcinoembryonic antigen (CEA), epithelial-related antigen (MOC31), claudin-4, thyroid transcription factor-1 (TTF-1), and napsin A...
February 2017: Histopathology
https://www.readbyqxmd.com/read/27588496/an-oncogenic-role-for-sphingosine-kinase-2
#20
Heidi A Neubauer, Duyen H Pham, Julia R Zebol, Paul A B Moretti, Amanda L Peterson, Tamara M Leclercq, Huasheng Chan, Jason A Powell, Melissa R Pitman, Michael S Samuel, Claudine S Bonder, Darren J Creek, Briony L Gliddon, Stuart M Pitson
While both human sphingosine kinases (SK1 and SK2) catalyze the generation of the pleiotropic signaling lipid sphingosine 1-phosphate, these enzymes appear to be functionally distinct. SK1 has well described roles in promoting cell survival, proliferation and neoplastic transformation. The roles of SK2, and its contribution to cancer, however, are much less clear. Some studies have suggested an anti-proliferative/pro-apoptotic function for SK2, while others indicate it has a pro-survival role and its inhibition can have anti-cancer effects...
October 4, 2016: Oncotarget
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