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https://www.readbyqxmd.com/read/28927159/diagnostic-value-of-inflammatory-cell-infiltrates-tumor-stroma-percentage-and-disease-free-survival-in-patients-with-colorectal-cancer
#1
Katarzyna Jakubowska, Wojciech Kisielewski, Luiza Kańczuga-Koda, Mariusz Koda, Waldemar Famulski
The anticancer immune defense mechanism involves humoral and cellular responses. The main effector mechanisms of antitumor responses involve the following: the activity of cytotoxic T cells; the activation of macrophages and neutrophils; the activity of cytokines secreted by T cells; and natural killer cell activity. Selected cell populations are responsible for the stimulation or suppression of the immune system against tumor cells. Therefore, the aim of the present study was to evaluate the location, extent and composition of the cellular inflammatory infiltration of tumors in patients with colorectal cancer (CRC)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927006/emerging-roles-of-heparanase-in-viral-pathogenesis
#2
REVIEW
Neel Thakkar, Tejabhiram Yadavalli, Dinesh Jaishankar, Deepak Shukla
Heparan sulfate (HS) is ubiquitously expressed on mammalian cells. It is a polysaccharide that binds growth factors, cytokines, and chemokines, and thereby controls several important physiological functions. Ironically, many human pathogens including viruses interact with it for adherence to host cells. HS functions can be regulated by selective modifications and/or selective cleavage of the sugar chains from the cell surface. In mammals, heparanase (HPSE) is the only known enzyme capable of regulating HS functions via a selective endoglycosidase activity that cleaves polymeric HS chains at internal sites...
September 18, 2017: Pathogens
https://www.readbyqxmd.com/read/28926962/anti-nkg2d-mab-a-new-treatment-for-crohn-s-disease
#3
REVIEW
Kasper Vadstrup, Flemming Bendtsen
Crohn's disease (CD) and ulcerative colitis (UC) are immunologically-mediated, debilitating conditions resulting from destructive inflammation of the gastrointestinal tract. The pathogenesis of IBD is incompletely understood, but is considered to be the result of an abnormal immune response with a wide range of cell types and proteins involved. Natural Killer Group 2D (NKG2D) is an activating receptor constitutively expressed on human Natural Killer (NK), γδ T, mucosal-associated invariant T (MAIT), CD56⁺ T, and CD8⁺ T cells...
September 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28926925/roxatidine-attenuates-degradation-of-extracellular-matrix
#4
Renhao Ze, Shangyu Wang, Mao Xie, Bo Zhang, Xin Tang, Jin Li
Degradation of extracellular matrix such as type II collagen and aggrecan induced by proinflammatory cytokines has been considered as an important hallmark of Osteoarthritis (OA). Roxatidine is a licensed specific competitive H (2) -receptor antagonist used for the treatment of gastric and duodenal ulcers. The pharmacological function of roxatidine on Osteoarthritis (OA) remains unknown. In the current study, we report that roxatidine attenuated TNF-α- induced degradation of type II collagen by suppressing the expression of MMP-3 and MMP-13 in human chondrosarcoma cell line SW1353 cells...
September 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28926923/involvement-of-mapk-nf-%C3%AE%C2%BAb-signal-transduction-pathways-camellia-japonica-mitigates-inflammation-and-gastric-ulcer
#5
Md Rashedunnabi Akanda, Byung-Yong Park
Gastric ulcer is an important risk factor for human health globally. Camellia japonica (CJ) is a plant of which the fruits are used as traditional phytomedicine for inflammatory and immunomodulatory diseases; however, the underlying molecular mechanism has not been clarified. The present study aimed to investigate the immunopharmacological activities of Camellia japonica and validate its pharmacological targets. To evaluate the protective roles of Camellia japonica on LPS-induced inflammation in RAW 264.7 cells and HCl/EtOH-induced gastric ulcer in mice; we applied 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), nitric oxide (NO), reactive oxygen species (ROS), histopathology, malondialdehyde (MDA), quantitative real-time polymerase chain reaction (qPCR), immunohistochemistry (IHC), and western blot analyses...
September 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28926865/effects-of-hypoxia-during-continuous-and-intermittent-exercise-on-glycaemic-control-and-selected-markers-of-vascular-function-in-type-1-diabetes
#6
Barbara Hall, Aleksandra Zebrowska, Tomasz Kaminski, Arkadiusz Stanula, Anna Robins
Objectives The aim of the study was to assess the effect of continuous and intermittent exercise in hypoxia on glycaemic control and selected markers of vascular function in patients with Type 1 diabetes (T1D). Methods 12 patients suffering from T1D for 12.1±6.0 years and 12 healthy adults performed: continuous exercise (ExC) and intermittent exercise (ExInt) in normoxia and hypoxia (FiO₂=15.1%). Glycaemia and proangiogenic factors concentrations were measured at rest and immediately after exercise. Results T1D patients' glycaemia decreased in response to ExC (p<0...
September 19, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28926842/pharmacotherapy-with-thymoquinone-improved-pancreatic-%C3%AE-cell-integrity-and-functional-activity-enhanced-islets-revascularization-and-alleviated-metabolic-and-hepato-renal-disturbances-in-streptozotocin-induced-diabetes-in-rats
#7
Adel Galal El-Shemi, Osama Adnan Kensara, Aiman Alsaegh, Mohammed Hasan Mukhtar
AIMS: This study is aimed at evaluating the antidiabetic effects of thymoquinone (TQ) on streptozotocin (STZ)-induced diabetes in rats, and exploring the possible underlying mechanisms. METHODS: Diabetes was induced in adult male Wistar rats by intraperitoneal injection of freshly prepared STZ (65 mg/kg). After disease induction, 42 rats were equally assigned to: controls, STZ-diabetic group, and STZ-diabetic group treated with oral TQ (35 mg/kg/day) for 5 weeks...
September 20, 2017: Pharmacology
https://www.readbyqxmd.com/read/28926770/1-25-oh-2d3-induces-regulatory-t-cell-differentiation-by-influencing-the-vdr-plc-%C3%AE-1-tgf-%C3%AE-1-pathway
#8
Qiang Zhou, Shengying Qin, Jinyan Zhang, Lin Zhon, Zhihai Pen, Tonghai Xing
Vitamin D has been recommended as an immune modulator in recent years, in addition to regulating calcium-phosphorous-bone metabolism. Clinical studies on organ transplantation found that vitamin D sufficiency patients were less likely to develop acute cellular rejection within one year after transplantation compared to those with vitamin D deficiency. Thus, a high percentage of regulatory T cells might play a key role in preventing acute cellular rejection (ACR). In this report, we studied the specific effects of 1,25(OH)2D3 on human T cell diff ;erentiation, and determined the potential molecule mechanism behind...
September 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28926719/exosomes-derived-from-embryonic-stem-cells-inhibit-doxorubicin-and-inflammation-induced-pyroptosis-in-muscle-cells
#9
Zahra Tavakoli Dargani, Reetu Singla, Taylor Johnson, Rakesh C Kukreja, Dinender Kumar Singla
Doxorubicin (Dox) is an effective anticancer drug. Unfortunately, it causes cardio and muscle toxicity due to increased oxidative stress and inflammation; however, it remains unknown whether Dox induces "pyroptosis"- an inflammation mediated cell death. We investigated whether Dox induces pyroptosis in mouse soleus muscle (Sol 8) cells in vitro and to show the protective effect of embryonic stem cells-exosomes (ES-exos) on pyroptosis. Doxorubicin and inflammation induced in vitro model was generated. Pyroptosis was confirmed using immunohistochemistry and western blotting of putative markers caspase-1, IL1β and pro-inflammatory cytokine IL-18...
September 19, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28926603/scavenging-of-reactive-oxygen-species-by-astaxanthin-inhibits-epithelial-mesenchymal-transition-in-high-glucose-stimulated-mesothelial-cells
#10
Kazuaki Hara, Chieko Hamada, Keiichi Wakabayashi, Reo Kanda, Kayo Kaneko, Satoshi Horikoshi, Yasuhiko Tomino, Yusuke Suzuki
BACKGROUND: High glucose concentrations influence the functional and structural development of the peritoneal membrane. We previously reported that the oral administration of astaxanthin (AST) suppressed peritoneal fibrosis (PF) as well as inhibited oxidative stress, inflammation, and epithelial-mesenchymal transition (EMT) of peritoneal mesothelial cells (PMCs) in a chlorhexidine-induced PF rat model. This suggests that oxidative stress induction of EMT is a key event during peritoneal damage...
2017: PloS One
https://www.readbyqxmd.com/read/28926576/receptor-for-advanced-glycation-end-products-and-world-trade-center-particulate-induced-lung-function-loss-a-case-cohort-study-and-murine-model-of-acute-particulate-exposure
#11
Erin J Caraher, Sophia Kwon, Syed H Haider, George Crowley, Audrey Lee, Minah Ebrahim, Liqun Zhang, Lung-Chi Chen, Terry Gordon, Mengling Liu, David J Prezant, Ann Marie Schmidt, Anna Nolan
World Trade Center-particulate matter(WTC-PM) exposure and metabolic-risk are associated with WTC-Lung Injury(WTC-LI). The receptor for advanced glycation end-products (RAGE) is most highly expressed in the lung, mediates metabolic risk, and single-nucleotide polymorphisms at the AGER-locus predict forced expiratory volume(FEV). Our objectives were to test the hypotheses that RAGE is a biomarker of WTC-LI in the FDNY-cohort and that loss of RAGE in a murine model would protect against acute PM-induced lung disease...
2017: PloS One
https://www.readbyqxmd.com/read/28926522/bos-is-associated-with-increased-cytotoxic-proinflammatory-cd8-t-nkt-like-and-nk-cells-in-the-small-airways
#12
Greg Hodge, Sandra Hodge, Aeneas Yeo, Phan Nguyen, Emily Hopkins, Chien-Li Holmes-Liew, Paul N Reynolds, Mark Holmes
BACKGROUND: Immunosuppression therapy after lung transplantation fails to prevent bronchiolitis obliterans syndrome (BOS) in many patients, primarily a disease of the small airways. We have reported that BOS is associated with a lack of suppression of cytotoxic mediators, and proinflammatory cytokines, in peripheral blood T, NKT-like (particularly CD8+) and NK cells. We also showed a loss of glucocorticoid receptor (GCR) in proinflammatory lymphocytes after transplant. It is unknown whether these proinflammatory lymphocytes target the small and/or large airways in BOS...
October 2017: Transplantation
https://www.readbyqxmd.com/read/28926473/hydrogen-gas-attenuates-sevoflurane-neurotoxicity-through-inhibiting-nuclear-factor-%C3%AE%C2%BA-light-chain-enhancer-of-activated-b-cells-signaling-and-proinflammatory-cytokine-release-in-neonatal-rats
#13
Yiwei Shi, Gang Wang, Jinyuan Li, Wenli Yu
Anesthesia neurotoxicity in developing brain has gained increasing attention. However, knowledge regarding its mitigating strategies remains scant. Sevoflurane, a commonly used anesthetic, is responsible for learning and memory deficits in neonates. Molecular hydrogen is reported to be a potential neuroprotective agent because of its antioxidative and anti-inflammatory activities. This study aimed to investigate the effect of hydrogen gas on sevoflurane neurotoxicity. The newborn rats were treated with sevoflurane and/or hydrogen gas for 2 h...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28926293/the-development-of-a-novel-wound-healing-material-silk-elastin-sponge
#14
Shingo Kawabata, Katsuya Kawai, Satoshi Somamoto, Kazuo Noda, Yoshitaka Matsuura, Yoko Nakamura, Shigehiko Suzuki
Silk-elastin is a recombinant protein polymer with repeating units of silk and elastin blocks. This novel wound healing promoting material has the ability to self-assemble from a liquid to a gel. We have already reported that an aqueous solution of silk-elastin has the potential to accelerate wound healing; however, there are several problems in applying silk-elastin in the clinical setting. To solve these problems, we developed a silk-elastin sponge that is easy to use in the clinical setting. In the present study, we examined whether the wound healing effect of the silk-elastin sponge is equal to the aqueous solution of silk-elastin in vivo...
September 19, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28926101/the-metabolic-cross-talk-between-epithelial-cancer-cells-and-stromal-fibroblasts-in-ovarian-cancer-progression-autophagy-plays-a-role
#15
REVIEW
Chanitra Thuwajit, Alessandra Ferraresi, Rossella Titone, Peti Thuwajit, Ciro Isidoro
Cancer and stromal cells, which include (cancer-associated) fibroblasts, adipocytes, and immune cells, constitute a mixed cellular ecosystem that dynamically influences the behavior of each component, creating conditions that ultimately favor the emergence of malignant clones. Ovarian cancer cells release cytokines that recruit and activate stromal fibroblasts and immune cells, so perpetuating a state of inflammation in the stroma that hampers the immune response and facilitates cancer survival and propagation...
September 19, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28926092/key-genes-regulating-the-liposecretion-process-of-mature-adipocytes
#16
Giulia Maurizi, Tiina Petäistö, Angela Maurizi, Lucio Della Guardia
White mature adipocytes (MAs) are plastic cells able to reversibly transdifferentiate toward fibroblast-like cells maintaining stem cell gene signatures. The main morphologic aspect of this transdifferentiation process, called liposecretion, is the secretion of large lipid droplets and the development of organelles necessary for exocrine secretion. There is a considerable interest in the adipocyte plastic properties involving liposecretion process, but the molecular details are incompletely explored. This review analyzes the gene expression of MAs isolated from human subcutaneous fat tissue with respect to bone marrow (BM)-derived mesenchymal stem cells (MSC) focusing on gene regulatory pathways involved into cellular morphology changes, cellular proliferation and transports of molecules through the membrane, suggesting potential ways to guide liposecretion...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28926091/functional-role-of-mesenchymal-stem-cells-in-the-treatment-of-chronic-neurodegenerative-diseases
#17
Debora Lo Furno, Giuliana Mannino, Rosario Giuffrida
Mesenchymal stem cells (MSCs) can differentiate into not only cells of mesodermal lineages, but also into endodermal and ectodermal derived elements, including neurons and glial cells. For this reason, MSCs have been extensively investigated to develop cell-based therapeutic strategies, especially in pathologies whose pharmacological treatments give poor results, if any. As in the case of irreversible neurological disorders characterized by progressive neuronal death, in which behavioral and cognitive functions of patients inexorably decline as the disease progresses...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28925994/chimeric-antigen-receptor-t-cell-therapy-assessment-and-management-of-toxicities
#18
REVIEW
Sattva S Neelapu, Sudhakar Tummala, Partow Kebriaei, William Wierda, Cristina Gutierrez, Frederick L Locke, Krishna V Komanduri, Yi Lin, Nitin Jain, Naval Daver, Jason Westin, Alison M Gulbis, Monica E Loghin, John F de Groot, Sherry Adkins, Suzanne E Davis, Katayoun Rezvani, Patrick Hwu, Elizabeth J Shpall
Immunotherapy using T cells genetically engineered to express a chimeric antigen receptor (CAR) is rapidly emerging as a promising new treatment for haematological and non-haematological malignancies. CAR-T-cell therapy can induce rapid and durable clinical responses, but is associated with unique acute toxicities, which can be severe or even fatal. Cytokine-release syndrome (CRS), the most commonly observed toxicity, can range in severity from low-grade constitutional symptoms to a high-grade syndrome associated with life-threatening multiorgan dysfunction; rarely, severe CRS can evolve into fulminant haemophagocytic lymphohistiocytosis (HLH)...
September 19, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28925977/equine-pbmc-cytokines-profile-after-in-vitro-%C3%AE-and-%C3%AE-ehv-infection-efficacy-of-a-parapoxvirus-ovis-based-immunomodulator-treatment
#19
Erika S Hue, Eric A Richard, Christine I Fortier, Guillaume D Fortier, Romain Paillot, Rudiger Raue, Stéphane L Pronost
Equine herpesviruses (EHV) infect horses early during life and the persistence of these viruses through establishment of latency represents a real risk. A better understanding of the immune response to EHV infection is necessary to improve our methods of prevention and decrease the risk of transmission. The objectives of this study were to characterise the cytokine gene expression profile of peripheral blood mononuclear cells (PBMC) after in vitro EHV-1, EHV-4, and EHV-2 infection and to determine the efficacy of inactivated Parapoxvirus ovis (iPPVO) against these 3 viruses...
September 19, 2017: Vaccines
https://www.readbyqxmd.com/read/28925921/au-pt-nanoparticles-as-catalase-mimics-to-attenuate-tumor-hypoxia-and-enhance-immune-cell-mediated-cytotoxicity
#20
Juan Li, Hong Liang, Ying Wu, Xiang-Yu Ou, Jingying Li
Hypoxic tumor microenvironment (TME) is closely linked to tumor progression, heterogeneity and immune suppression. Therefore, the development of effective methods to overcome hypoxia and substantially enhance the immunotherapy efficacy remains a desirable goal. Herein, we engineered a biocompatible Au core/Pt shell nanoparticles (Au@Pt NPs) to reoxygenate the TME by reacting with endogenous H2O2. Treatment with Au@Pt NPs appeared to improve oxygen in intracellular environments and decrease hypoxia-inducible factor (HIF)-1α expression...
September 19, 2017: Nanotechnology
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