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https://www.readbyqxmd.com/read/28103571/identification-of-aurintricarboxylic-acid-as-a-selective-inhibitor-of-the-tweak-fn14-signaling-pathway-in-glioblastoma-cells
#1
Alison Roos, Harshil D Dhruv, Ian T Mathews, Landon J Inge, Serdar Tuncali, Lauren K Hartman, Donald Chow, Nghia Millard, Holly H Yin, Jean Kloss, Joseph C Loftus, Jeffrey A Winkles, Michael E Berens, Nhan L Tran
The survival of patients diagnosed with glioblastoma (GBM), the most deadly form of brain cancer, is compromised by the proclivity for local invasion into the surrounding normal brain, which prevents complete surgical resection and contributes to therapeutic resistance. Tumor necrosis factor-like weak inducer of apoptosis (TWEAK), a member of the tumor necrosis factor (TNF) superfamily, can stimulate glioma cell invasion and survival via binding to fibroblast growth factor-inducible 14 (Fn14) and subsequent activation of the transcription factor NF-κB...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28103502/tim3-gal9-interactions-between-t-cells-and-monocytes-result-in-an-immunosuppressive-feedback-loop-that-inhibits-th1-responses-in-osteosarcoma-patients
#2
Xiuzhong Li, Yanqing Chen, Xu Liu, Jin Zhang, Xu He, Guodong Teng, Dazhi Yu
The Tim3/Gal9 pathway is associated with immunosuppression and worse clinical outcome in multiple cancers. To illustrate the specific mechanism of Tim3/Gal9 interaction in osteosarcoma, we examined expression, function, and regulation of Tim3/Gal9 in various cells from osteosarcoma patients. Data showed that CD4(+) T cells, CD8(+) T cells, and monocytes from both peripheral blood and tumor of osteosarcoma patients contained high frequencies of Tim3(+) cells, while the Gal9 expression was primarily found in regulatory T cells (Tregs) from osteosarcoma patients and was elevated compared to that in non-cancer controls...
January 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28103322/htlv-1-tax-induces-formation-of-the-active-macromolecular-ikk-complex-by-generating-lys63-and-met1-linked-hybrid-polyubiquitin-chains
#3
Yuri Shibata, Fuminori Tokunaga, Eiji Goto, Ginga Komatsu, Jin Gohda, Yasushi Saeki, Keiji Tanaka, Hirotaka Takahashi, Tatsuya Sawasaki, Satoshi Inoue, Hiroyuki Oshiumi, Tsukasa Seya, Hiroyasu Nakano, Yuetsu Tanaka, Kazuhiro Iwai, Jun-Ichiro Inoue
The Tax protein of human T-cell leukemia virus type 1 (HTLV-1) is crucial for the development of adult T-cell leukemia (ATL), a highly malignant CD4+ T cell neoplasm. Among the multiple aberrant Tax-induced effects on cellular processes, persistent activation of transcription factor NF-κB, which is activated only transiently upon physiological stimulation, is essential for leukemogenesis. We and others have shown that Tax induces activation of the IκB kinase (IKK) complex, which is a critical step in NF-κB activation, by generating Lys63-linked polyubiquitin chains...
January 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28103270/cold-atmospheric-plasma-created-at-the-tip-of-an-elongated-flexible-capillary-using-low-electric-current-can-slow-the-progression-of-melanoma
#4
Y Binenbaum, G Ben-David, Z Gil, Ya Z Slutsker, M A Ryzhkov, J Felsteiner, Ya E Krasik, J T Cohen
INTRODUCTION: Cold Atmospheric Plasma Jet (CAPJ), with ion temperature close to room temperature, has tremendous potential in biomedical engineering, and can potentially offer a therapeutic option that allows cancer cell elimination without damaging healthy tissue. We developed a hand-held flexible device for the delivery of CAPJ to the treatment site, with a modified high-frequency pulse generator operating at a RMS voltage of <1.2 kV and gas flow in the range 0.3-3 l/min. The aims of our study were to characterize the CAPJ emitted from the device, and to evaluate its efficacy in elimination of cancer cells in-vitro and in-vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28103236/impact-of-cd4-t-cell-responses-on-clinical-outcome-following-oral-administration-of-wild-type-enterotoxigenic-escherichia-coli-in-humans
#5
Monica A McArthur, Wilbur H Chen, Laurence Magder, Myron M Levine, Marcelo B Sztein
Enterotoxigenic Escherichia coli (ETEC) is a non-invasive enteric pathogen of considerable public health importance, being one of the most common attributable causes of diarrheal illness in infants and young children in developing countries and the most common cause of traveler's diarrhea. To enhance study-to-study consistency of our experimental challenge model of ETEC in volunteers, and to allow concomitant multi-site trials to evaluate anti-ETEC immunoprophylactic products, hundreds of vials, each containing a standardized inoculum of virulent wild-type (wt) ETEC strain H10407 (serotype O78:H11 expressing colonization factor antigen I and heat-labile and heat-stable enterotoxins), were prepared under current Good Manufacturing Practices (cGMP) and frozen...
January 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28103134/the-role-of-nuclear-factor-of-activated-t-cells-in-pulmonary-arterial-hypertension
#6
Rui Chen, Jinchuan Yan, Peijing Liu, Zhongqun Wang, Cuiping Wang, Wei Zhong, Liangjie Xu
Nuclear factor of activated T cells (NFAT) was first identified as a transcription factor about three decades ago and was not well studied until the development of immunosuppressant. Numerous studies confirm that calcineurin/NFAT signaling is very important in the development of vasculature and cardiovascular system during embryogenesis and is involved in the development of vascular diseases such as hypertension, atherosclerosis and restenosis. Recent studies demonstrated that NFAT proteins also regulate immune response and vascular cells in the pulmonary microenvironment...
January 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28103008/quantitative-tracking-of-combinatorially-engineered-populations-with-multiplexed-binary-assemblies
#7
Ramsey Zeitoun, Gur Pines, William C Grau, Ryan T Gill
Advances in synthetic biology and genomics have enabled full-scale genome engineering efforts on laboratory timescales. However, the absence of sufficient approaches for mapping engineered genomes at system-wide scales onto performance has limited the adoption of more sophisticated algorithms for engineering complex biological systems. Here we report on the development and application of a robust approach to quantitatively map combinatorially engineered populations at scales up to several dozen target sites...
January 19, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28102733/plk1-polo-like-kinase-1-inhibits-mtor-complex-1-and-promotes-autophagy
#8
Stefanie Ruf, Alexander Martin Heberle, Miriam Langelaar-Makkinje, Sara Gelino, Deepti Wilkinson, Carolin Gerbeth, Jennifer Jasmin Schwarz, Birgit Holzwarth, Bettina Warscheid, Chris Meisinger, Marcel A T M van Vugt, Ralf Baumeister, Malene Hansen, Kathrin Thedieck
Mechanistic target of rapamycin complex 1 (MTORC1) and PLK1 (polo like kinase 1) are major drivers of cancer cell growth and proliferation, and inhibitors of both protein kinases are currently being investigated in clinical studies. To date, MTORC1's and PLK1's functions are mostly studied separately, and reports on their mutual crosstalk are scarce. Here, we identify PLK1 as a physical MTORC1 interactor in human cancer cells. PLK1 inhibition enhances MTORC1 activity under nutrient sufficiency and in starved cells, and PLK1 directly phosphorylates the MTORC1 component RPTOR/RAPTOR in vitro...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28102541/tgf-%C3%AE-regulation-of-encephalitogenic-and-regulatory-t-cells-in-multiple-sclerosis
#9
REVIEW
Priscilla W Lee, Mary E Severin, Amy E Lovett-Racke
Transforming growth factor-beta (TGF-β) is a pleiotropic cytokine that has been shown to influence the differentiation and function of T cells. The role that TGF-β plays in immune-mediated disease, such as multiple sclerosis (MS), has become a major area of investigation since CD4(+) T cells appear to be a major mediator of autoimmunity. This review provides an analysis of the literature on the role that TGF-β plays in the generation and regulation of encephalitogenic and regulatory T cells in experimental autoimmune encephalomyelitis (EAE), an animal model of MS, as well as in T cells of MS patients...
January 19, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28102058/neonatal-immune-state-is-influenced-by-maternal-allergic-rhinitis-and-associated-with-regulatory-t-cells
#10
Lu Tan, Jing Ou, Zezhang Tao, Yonggang Kong, Yu Xu
PURPOSE: Maternal influences contribute to the origin of allergic diseases, but the mechanisms are not clear. The current literature prompted the role of epigenetics in the development of allergic diseases. We sought to investigate the roles of regulatory T (Treg) cells and Forkhead box p3 (Foxp3) DNA methylation in the process of maternal transmission of allergic rhinitis (AR) susceptibility. METHODS: BALB/c female mice (AR mother) were sensitized by intraperitoneal injection of Dermatophagoides pteronyssinus (Der p) 1 on day 1 and 7...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28102055/role-of-regulatory-cells-in-oral-tolerance
#11
REVIEW
Marcin Wawrzyniak, Liam O'Mahony, Mübeccel Akdis
The immune system is continuously exposed to great amounts of different antigens from both food and intestinal microbes. Immune tolerance to these antigens is very important for intestinal and systemic immune homeostasis. Oral tolerance is a specific type of peripheral tolerance induced by exposure to antigen via the oral route. Investigations on the role of intestinal immune system in preventing hypersensitivity reactions to innocuous dietary and microbial antigens have been intensively performed during the last 2 decades...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28101991/clinically-distinct-phenotypes-of-canavan-disease-correlate-with-residual-aspartoacylase-enzyme-activity
#12
Marisa I Mendes, Desirée Ec Smith, Ana Pop, Pascal Lennertz, Matilde R Fernandez Ojeda, Warsha A Kanhai, Silvy J M van Dooren, Yair Anikster, Ivo Barić, Carolien Boelen, Jaime Campistol, Lonneke de Boer, Ariana Kariminejad, Hulya Kayserili, Agathe Roubertie, Krijn T Verbruggen, Christine Vianey-Saban, Monique Williams, Gajja S Salomons
We describe 14 patients with 12 novel missense mutations in ASPA, the gene causing Canavan disease (CD). We developed a method to study the effect of these 12 variants on the function of aspartoacylase - the hydrolysis of N-acetyl-L-aspartic acid (NAA) to aspartate and acetate. The wild-type ASPA open reading frame (ORF) and the ORFs containing each of the variants were transfected into HEK293 cells. Enzyme activity was determined by incubating cell lysates with NAA and measuring the released aspartic acid by LC-MS/MS...
January 19, 2017: Human Mutation
https://www.readbyqxmd.com/read/28101965/a-multi-hit-hypothesis-of-bullous-pemphigoid-and-associated-neurological-disease-is-hla-dqb1-03-01-a-potential-link-between-immune-privileged-antigen-exposure-and-epitope-spreading
#13
REVIEW
K T Amber, J Zikry, M Hertl
Bullous pemphigoid (BP) is the most common autoimmune blistering disease and is linked to IgG recognition of 2 hemidesmosomal antigens, that is, BP230 (BP antigen 1) and BP180 (BP antigen 2, collagen XVII). The association of BP with other systemic diseases, particularly neurocognitive diseases, provides a potential clue in the underlying pathogenesis of BP. The role of HLA-DQB1*03:01 binding to the immunogenic portion of BP180 provides a potential mechanism by which exposure to neuronal collagen BP180 may lead to cutaneous disease...
January 19, 2017: HLA
https://www.readbyqxmd.com/read/28101891/different-expression-of-leptin-and-igf1-in-the-adult-and-prepubertal-testis-in-dogs
#14
L Müller, M P Kowalewski, I M Reichler, E Kollár, O Balogh
Leptin (Lep) and insulin-like growth factor 1 (IGF1) are implicated in the regulation of testicular function, but in dogs, our knowledge is limited to the possible role of the IGF1 system in testicular tumours. In this study, we aimed to describe and compare gene expression and protein localization of Lep, IGF1 and their receptors (LepR and IGF1R, respectively) in the testis of healthy adult and prepubertal dogs. Testes were collected from sexually healthy mature (n = 7) and from 8-week-old dogs (n = 7)...
January 18, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28101811/the-distribution-and-function-of-human-memory-t-cell-subsets-in-lung-cancer
#15
Si Yuan Sheng, Yong Gu, Chuan Gang Lu, Jian Yong Zou, Hai Hong, RongFu Wang
The distribution and function of T lymphocytes in human lung cancer remain limited. In this study, we investigated the properties of human T cell subsets in the blood of non-small cell lung cancer (NSCLC) patients. We found a relatively normal level of CD4+ subsets in the blood of NSCLC patients, but CD8+ effector T cells increased and CD8+ effector memory cells declined compared to the healthy donors. To further analyze their properties, we stimulated the peripheral blood mononuclear cells (PBMCs) of NSCLC patients by mitogens to examine cytokine production...
January 19, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28101356/a-case-report-of-primary-cutaneous-natural-killer-t-cell-lymphoma
#16
Chen Tian, Yong Yu, Yizhuo Zhang
Primary cutaneous extranodal natural killer/T-cell lymphoma, nasal type (ENKL-NT) is a relatively rare disease associated with aggressive tumor-cell behavior and poor prognosis. Progress in immunohistochemistry has improved the identification of ENKL-NT. The present case study reported on a 64-year-old female patient presenting with several red nodular lesions on the neck developed over four months. Cutaneous biopsy revealed these cells were positive for CD3, CD56, CD5, CD8 and negative for CD2, CD34, CD7, CD20 and Granzyme B...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28101230/effect-of-il-17-in-the-development-of-colon-cancer-in-mice
#17
Lijuan Yang, Hao Liu, Lili Zhang, Jie Hu, Haixia Chen, Lei Wang, Xiaolin Yin, Quanhai Li, Yixin Qi
Cytokine therapy is commonly used for tumor immunotherapy. Although early studies focused directly on the tumor, current investigations are more attentive of the tumor microenvironment. Various immune cells and related cytokines in the tumor microenvironment play an important role in the occurrence and development of tumor. Interleukin (IL)-17 is the characteristic cytokine produced by Th17 cells. IL-17 has been associated with various immune responses. The results of previous studies showed that IL-17 can significantly reduce the size of transplanted tumors in tumor-bearing mice, albeit it has no effect on the survival time of mice...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101222/frat1-expression-regulates-proliferation-in-colon-cancer-cells
#18
Kongxi Zhu, Jianqiang Guo, Hongjuan Wang, Weihua Yu
Colorectal cancer is one of the most common gastric malignancies worldwide. However, the underlying mechanism of colon cancer development and valuable indicators of the disease remain unclear. In this study, the expression of frequently rearranged in advanced T-cell lymphomas 1 (FRAT1) in colon cancer was investigated and the association between FRAT1 expression and biological properties of tumors was analyzed. A total of 147 colon cancer tissue samples and adjacent normal tissues were collected between January 2013 and June 2014...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100970/sickle-cell-disease-with-cyanotic-congenital-heart-disease-long-term-outcomes-in-5-children
#19
Glen J Iannucci, Olufolake A Adisa, Matthew E Oster, Michael McConnell, William T Mahle
Sickle cell disease is a risk factor for cerebrovascular accidents in the pediatric population. This risk is compounded by hypoxemia. Cyanotic congenital heart disease can expose patients to prolonged hypoxemia. To our knowledge, the long-term outcome of patients who have combined sickle cell and cyanotic congenital heart disease has not been reported. We retrospectively reviewed patient records at our institution and identified 5 patients (3 girls and 2 boys) who had both conditions. Their outcomes were uniformly poor: 4 died (age range, 12 mo-17 yr); 3 had documented cerebrovascular accidents; and 3 developed ventricular dysfunction...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28100889/cotransfer-of-regulatory-t-cells-improve-the-therapeutic-effectiveness-of-mesenchymal-stem-cells-in-treating-a-colitis-mouse-model
#20
Yang Yu, Tianyu Zhao, Deqin Yang
Inflammatory bowel disease (IBD) is a severe inflammatory condition in the colon. To date, clinical solutions for this disease have been limited. Mesenchymal stem cells (MSCs), multipotential cells with immune regulation and anti-inflammatory functions, have been applied to treatment of IBD. However, the therapeutic effectiveness of MSCs still needs to be improved. Here, we were interested in whether regulatory T cells (Tregs) could enhance the immune regulation function of MSCs in treatment of mouse colitis...
January 19, 2017: Experimental Animals
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