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https://www.readbyqxmd.com/read/29140452/mechanical-ventilation-induces-il-4-secretion-in-lungs-and-reduces-the-phagocytic-capacity-of-lung-macrophages
#1
Kenny Bielen, Bart 's Jongers, Jan Boddaert, Christine Lammens, Philippe G Jorens, Surbhi Malhotra-Kumar, Herman Goossens, Samir Kumar-Singh
Patients receiving mechanical ventilation are at risk of developing ventilator-associated pneumonia. Here, we show that clinically utilized ventilation protocols in rat with 5 or 8 mL/kg tidal volumes cause increased IL-4 expression, lowered ratio of TH1:TH2 transcriptional factors (Tbet:Gata3) and increased arginase1-positive (Arg1+) macrophages and eosinophils in lungs. Macrophages from ventilated lungs had reduced ex vivo capacity towards phagocytosing bacteria. Ventilated animals, when further challenged with bacterial pneumonia, continued to show persistence of Arg1+ M2 macrophages as well as an increased bacterial burden compared to spontaneously breathing animals receiving the same bacterial dose...
November 13, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29131553/gata3-differential-expression-in-neuroblastoma-and-nephroblastoma
#2
Jerzy Klijanienko, Martial Caly, Paul Frénaux, Jan Klos
No abstract text is available yet for this article.
November 13, 2017: Cancer
https://www.readbyqxmd.com/read/29131532/reply-to-gata3-differential-expression-in-neuroblastoma-and-nephroblastoma
#3
Austin Blackburn Wiles, Celeste N Powers, Steven Christopher Smith
No abstract text is available yet for this article.
November 13, 2017: Cancer
https://www.readbyqxmd.com/read/29123515/dietary-intervention-with-%C3%AE-lactoglobulin-derived-peptides-and-a-specific-mixture-of-fructo-oligosaccharides-and-bifidobacterium-breve-m-16v-facilitates-the-prevention-of-whey-induced-allergy-in-mice-by-supporting-a-tolerance-prone-immune-environment
#4
Atanaska I Kostadinova, Alba Pablos-Tanarro, Mara A P Diks, Betty C A M van Esch, Johan Garssen, Léon M J Knippels, Linette E M Willemsen
Cow's milk allergy (CMA) prevails in infants and brings increased risk of developing other allergic diseases. Oral administration of specific β-lactoglobulin (BLG)-derived peptides (PepMix) and a specific blend of short- and long-chain fructo-oligosaccharides and Bifidobacterium breve M-16V (FF/Bb) was found to partially prevent CMA development in mice. In this study, we aimed to expand the knowledge on the preventive potential and the underlying mechanisms of this approach. Three-week-old female C3H/HeOuJ mice were orally exposed to PepMix±FF/Bb prior to a 5-week oral sensitization with whole whey and cholera toxin as an adjuvant...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29123100/dna-methylation-at-enhancers-identifies-distinct-breast-cancer-lineages
#5
Thomas Fleischer, Xavier Tekpli, Anthony Mathelier, Shixiong Wang, Daniel Nebdal, Hari P Dhakal, Kristine Kleivi Sahlberg, Ellen Schlichting, Anne-Lise Børresen-Dale, Elin Borgen, Bjørn Naume, Ragnhild Eskeland, Arnoldo Frigessi, Jörg Tost, Antoni Hurtado, Vessela N Kristensen
Breast cancers exhibit genome-wide aberrant DNA methylation patterns. To investigate how these affect the transcriptome and which changes are linked to transformation or progression, we apply genome-wide expression-methylation quantitative trait loci (emQTL) analysis between DNA methylation and gene expression. On a whole genome scale, in cis and in trans, DNA methylation and gene expression have remarkably and reproducibly conserved patterns of association in three breast cancer cohorts (n = 104, n = 253 and n = 277)...
November 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/29119638/biphasic-papillary-renal-cell-carcinoma-is-a-rare-morphologic-variant-with-frequent-multifocality-a-study-of-28-cases
#6
Kiril Trpkov, Daniel Athanazio, Cristina Magi-Galluzzi, Helene Yilmaz, David Clouston, Abbas Agaimy, Sean R Williamson, Fadi Brimo, Jose I Lopez, Monika Ulamec, Nathalie Rioux-Leclercq, Maysoun Kassem, Nilesh Gupta, Arndt Hartmann, Xavier Leroy, Samir Al Bashir, Asli Yilmaz, Ondřej Hes
AIMS: To further characterize biphasic squamoid renal cell carcinoma (RCC), a recently proposed variant of papillary RCC. METHODS AND RESULTS: We identified 28 tumors from multiple institutions. They typically demonstrated two cell populations - larger cells with eosinophilic cytoplasm and higher-grade nuclei, surrounded by smaller, amphophilic cells with scanty cytoplasm. The dual morphology was variable (median 72.5% of tumor, range 5-100%); emperipolesis was found in all cases...
November 8, 2017: Histopathology
https://www.readbyqxmd.com/read/29111218/the-notch-pathway-inhibitor-sahm1-abrogates-the-hallmarks-of-allergic-asthma
#7
Alex KleinJan, Irma Tindemans, Jeffrey E Montgomery, Melanie Lukkes, Marjolein J W de Bruijn, Menno van Nimwegen, Ingrid Bergen, Raymond E Moellering, Henk C Hoogsteden, Louis Boon, Derk Amsen, R W Hendriks
BACKGROUND: The Notch signaling pathway has been implicated in the pathogenesis of allergic airway inflammation. Targeting the active Notch transactivation complex by the cell-permeable, hydrocarbon-stapled synthetic peptide SAHM1 was results in genome-wide suppression of Notch-activated genes in leukemic cells and other models. However, efficacy of SAHM1 in allergic asthma models has remained unexplored. OBJECTIVE: We aimed to investigate therapeutic efficacy of SAHM1 in a house dust mite (HDM)-driven asthma model...
October 27, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29111212/mcpip1-controls-allergic-airway-inflammation-by-suppressing-il-5-producing-th2-cells-through-notch-gata3-pathway
#8
Hui Peng, Huan Ning, Qinghong Wang, Wenbao Lu, Yingzi Chang, Tony T Wang, Jinping Lai, Pappachan E Kolattukudy, Rong Hou, Daniel F Hoft, Mark S Dykewicz, Jianguo Liu
BACKGROUND: Asthmatic and allergic inflammation is mediated by Th2 cytokines (IL-4, IL-5 and IL-13). Though we have learned much about how Th2 cells are differentiated, the Th2 checkpoint mechanisms remain elusive. OBJECTIVES: In this study, we investigate how monocyte chemotactic protein induced protein-1 (MCPIP1, encoded by zc3h12a gene) regulates IL-5-producing Th2 cell differentiation and Th2-mediated inflammation. METHODS: The functions of zc3h12a(-/-) CD4 T cells were evaluated by checking the expression of Th2 cytokines and transcription factors in vivo and in vitro...
October 27, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29106744/germ-cell-tumor-growth-patterns-originating-from-clear-cell-carcinomas-of-the-ovary-and-endometrium-a-comparative-immunohistochemical-study-favouring-their-origin-from-somatic-stem-cells
#9
F F Nogales, J Prat, M Schuldt, N Cruz-Viruel, B Kau, E D'Angelo, X Matias-Guiu, A Vidal, W G McCluggage, J W Oosterhuis
AIMS: To report a series of 11 ovarian and one endometrial neoplasm in elderly patients with mixed clear cell tumour and germ cell tumour (GCT) components, to compare their immunohistochemical and demonstrate a putative stem cell population. METHODS AND RESULTS: The clear cell tumours included 11 clear cell carcinomas (CCC) and 1 borderline clear cell tumour, while the GCT always included glandular yolk sac tumour (YST). In 4 cases, there were also foci of teratoma with immature neuroepithelial and endodermal tissues, and undifferentiated areas showing true embryoids...
November 6, 2017: Histopathology
https://www.readbyqxmd.com/read/29104112/unclassified-hemangioma-like-renal-cell-carcinoma-a-potential-diagnostic-pitfall
#10
Kanika Taneja, Sohrab Arora, Craig G Rogers, Nilesh S Gupta, Liang Cheng, Sean R Williamson
Recently, rare renal cell carcinomas (RCC) have been reported to closely mimic hemangioma; however, these have been largely recognizable as clear cell RCC. Conversely, true hemangiomas of the kidney are also increasingly recognized. We report a 62-year-old woman who underwent partial nephrectomy for a hemangioma-like RCC without appreciable clear cell morphology. Immunohistochemistry revealed luminal structures that stained positively for cytokeratin (CK), CK7, carbonic anhydrase IX, PAX8, and high molecular weight keratin (HMWK), admixed with a CD34, CD31, and ERG-positive complex network of vessels...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29100034/down-regulation-of-notch-signaling-pathway-reverses-the-th1-th2-imbalance-in-tuberculosis-patients
#11
Qifeng Li, Hui Zhang, Liang Yu, Chao Wu, Xinhui Luo, He Sun, Jianbing Ding
Th1/Th2 imbalance to Th2 is of significance in the peripheral immune responses in Tuberculosis (TB) development. However, the mechanisms for Th1/Th2 imbalance are still not well determined. Notch signaling pathway is involved in the peripheral T cell activation and effector cell differentiation. However, whether it affects Th1/Th2 imbalance in TB patients is still not known. Here, we used γ-secretase inhibitor (DAPT) to treat the peripheral blood mononuclear cells (PBMCs) from healthy people or individuals with latent or active TB infection in vitro, respectively...
October 28, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29090236/expression-of-th1-and-th2-cytokine-and-associated-transcription-factors-in-peripheral-blood-mononuclear-cells-and-correlation-with-disease-severity
#12
Hadis Yousefzadeh, Farahzad Jabbari Azad, Maryam Rastin, Mahnaz Banihashemi, Mahmoud Mahmoudi
BACKGROUND: Psoriasis is a T cell-mediated autoimmune disease in patients with elevated levels of proinflammatory cytokines belonging mainly to the Th1 pathway. We investigated whether treatment of psoriasis patients with methotrexate (MTX), along with micronutrients, modulated mRNA expression of Th1 and Th2 components and whether expression of these components correlated with psoriasis severity. METHODS: Thirty plaque-type psoriasis patients with Psoriasis Area and Severity Index (PASI) scores greater than 10 were recruited; these were 15 non-micronutrients taking- (NMT) patients treated with MTX daily (0...
October 2017: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29081776/innate-lymphoid-cells-in-intestinal-inflammation
#13
REVIEW
Alessandra Geremia, Carolina V Arancibia-Cárcamo
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the intestine that encompasses Crohn's disease (CD) and ulcerative colitis. The cause of IBD is unknown, but the evidence suggests that an aberrant immune response toward the commensal bacterial flora is responsible for disease in genetically susceptible individuals. Results from animal models of colitis and human studies indicate a role for innate lymphoid cells (ILC) in the pathogenesis of chronic intestinal inflammation in IBD. ILC are a population of lymphocytes that are enriched at mucosal sites, where they play a protective role against pathogens including extracellular bacteria, helminthes, and viruses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29078328/gata2-3-tfap2a-c-transcription-factor-network-couples-human-pluripotent-stem-cell-differentiation-to-trophectoderm-with-repression-of-pluripotency
#14
Christian Krendl, Dmitry Shaposhnikov, Valentyna Rishko, Chaido Ori, Christoph Ziegenhain, Steffen Sass, Lukas Simon, Nikola S Müller, Tobias Straub, Kelsey E Brooks, Shawn L Chavez, Wolfgang Enard, Fabian J Theis, Micha Drukker
To elucidate the molecular basis of BMP4-induced differentiation of human pluripotent stem cells (PSCs) toward progeny with trophectoderm characteristics, we produced transcriptome, epigenome H3K4me3, H3K27me3, and CpG methylation maps of trophoblast progenitors, purified using the surface marker APA. We combined them with the temporally resolved transcriptome of the preprogenitor phase and of single APA+ cells. This revealed a circuit of bivalent TFAP2A, TFAP2C, GATA2, and GATA3 transcription factors, coined collectively the "trophectoderm four" (TEtra), which are also present in human trophectoderm in vivo...
October 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29073906/hdr-syndrome-with-a-novel-mutation-in-gata3-mimicking-a-congenital-x-linked-stapes-gusher-a-case-report
#15
Aram Yang, Jinsup Kim, Chang-Seok Ki, Sung Hwa Hong, Sung Yoon Cho, Dong-Kyu Jin
BACKGROUND: Hypoparathyroidism, sensorineural hearing loss, and renal disease (HDR) syndrome, also known as Barakat syndrome, is a rare genetic disorder with high phenotypic heterogeneity caused by haploinsufficiency of the GATA3 gene on chromosome 10p14-p15. For these reasons, the diagnosis of HDR syndrome is challenging and requires a high index of suspicion as well as genetic analysis. CASE PRESENTATION: A 14-month-old boy, with sensorineural hearing loss in both ears, showed typical radiological features of X-linked stapes gusher on preoperative temporal bone computed tomography (CT) for cochlear implantations...
October 26, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/29069807/chronic-high-dose-of-captopril-induces-depressive-like-behaviors-in-mice-possible-mechanism-of-regulatory-t-cell-in-depression
#16
Hyun-Sun Park, Arum Han, Hye-Lim Yeo, Min-Jung Park, Min-Jung You, Hyun Jin Choi, Chang-Won Hong, Sang-Hyuk Lee, Seung Hyun Kim, Borah Kim, Min-Soo Kwon
Major depression has various types of symptoms and disease courses with inconsistent response to monoamine-related antidepressants. Thus, monoamine theory may not be the only pathophysiologic pathway relevant to depression. Recently, it has been suggested that regulatory T cell (Treg) is associated with depression. Based on our previous study that showed decreased regulatory T cell (Treg) population following chronic high-dose captopril (CHC, 40 mg/kg/day * 21 days) administration, we examined whether CHC alone can induce depressive-like behaviors in mice even without stressful stimuli...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29066080/piper-nigrum-extract-ameliorated-allergic-inflammation-through-inhibiting-th2-th17-responses-and-mast-cells-activation
#17
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Hee Soon Shin, Dong-Hwa Shon, Ok Hee Chai
Piper nigrum (Piperaceae) is commonly used as a spice and traditional medicine in many countries. P. nigrum has been reported to have anti-oxidant, anti-bacterial, anti-tumor, anti-mutagenic, anti-diabetic, and anti-inflammatory properties. However, the effect of P. nigrum on allergic asthma has not been known. This study investigated the effect of P. nigrum ethanol extracts (PNE) on airway inflammation in asthmatic mice model. In the ovalbumin (OVA)-induced allergic asthma model, we analysed the number of inflammatory cells and cytokines production in bronchoalveolar lavage fluid (BALF) and lung tissue; histological structure; as well as the total immunoglobulin (Ig)E, anti-OVA IgE, anti-OVA IgG1 and histamine levels in serum...
October 16, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29053396/embryonic-stem-cell-secreted-factors-decrease-invasiveness-of-triple-negative-breast-cancer-cells-through-regulome-modulation
#18
Elizabeth Tarasewicz, Robert S Oakes, Misael O Aviles, Joelle Straehla, Kathryn M Chilton, Joseph T Decker, Jia Wu, Lonnie D Shea, Jacqueline S Jeruss
Stem cell microenvironments decrease the invasiveness of cancer cells, and elucidating the mechanisms associated with disease regression could further the development of targeted therapies for aggressive cancer subtypes. To this end, we applied an emerging technology, TRanscriptional Activity CEll aRray (TRACER), to investigate the reprogramming of triple-negative breast cancer (TNBC) cells in conditions that promoted a less aggressive phenotype. The repressive environment was established through exposure to mouse embryonic stem cell conditioned media (mESC CM)...
October 20, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29046031/-innate-lymphoid-cells-and-their-role-in-immune-response-regulation
#19
Bibiana Patricia Ruiz-Sánchez, David Cruz-Zárate, Iris Estrada-García, Isabel Wong-Baeza
Innate lymphoid cells (ILCs) are lymphocytes lacking antigen recognition receptors and become activated in response to cytokines and through microbe-associated molecular pattern (MAMP) receptors. ILCs are found mainly in mucosal tissues and participate in the immune response against infections and in chronic inflammatory conditions. ILCs are divided in ILC-1, ILC-2 and ILC-3, and these cells have analogue functions to those of immune adaptive response lymphocytes Th1, Th2 and Th17. ILC-1 express T-bet, produce IFNγ, protect against infections with intracellular microorganisms and are related to inflammatory bowel disease immunopathology...
July 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29038332/gata-transcription-factors-in-testicular-adrenal-rest-tumours
#20
Manon Engels, Paul N Span, Rod T Mitchell, Joop J T M Heuvel, Monica A Marijnissen-van Zanten, Antonius E van Herwaarden, Christina A Hulsbergen-van de Kaa, Egbert Oosterwijk, Nike M Stikkelbroeck, Lee B Smith, Fred C G J Sweep, Hedi L Claahsen-van der Grinten
Testicular adrenal rest tumours (TARTs) are benign adrenal-like testicular tumours that frequently occur in male patients with congenital adrenal hyperplasia. Recently, GATA transcription factors have been linked to the development of TARTs in mice. The aim of our study was to determine GATA expression in human TARTs and other steroidogenic tissues. We determined GATA expression in TARTs (n = 16), Leydig cell tumours (LCTs; n = 7), adrenal (foetal (n = 6) + adult (n = 10)) and testis (foetal (n = 13) + adult (n = 8))...
November 2017: Endocrine Connections
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