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https://www.readbyqxmd.com/read/28811974/ex-vivo-assessment-of-drug-response-on-breast-cancer-primary-tissue-with-preserved-microenvironments
#1
Manuele G Muraro, Simone Muenst, Valentina Mele, Luca Quagliata, Giandomenica Iezzi, Alexandar Tzankov, Walter P Weber, Giulio C Spagnoli, Savas D Soysal
Interaction between cancerous, non-transformed cells, and non-cellular components within the tumor microenvironment plays a key role in response to treatment. However, short-term culture or xenotransplantation of cancer specimens in immunodeficient animals results in dramatic modifications of the tumor microenvironment, thus preventing reliable assessment of compounds or biologicals of potential therapeutic relevance. We used a perfusion-based bioreactor developed for tissue engineering purposes to successfully maintain the tumor microenvironment of freshly excised breast cancer tissue obtained from 27 breast cancer patients and used this platform to test the therapeutic effect of antiestrogens as well as checkpoint-inhibitors on the cancer cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28808331/pro-and-anti-inflammatory-responses-of-peripheral-blood-mononuclear-cells-induced-by-staphylococcus-aureus-and-pseudomonas-aeruginosa-phages
#2
Jonas D Van Belleghem, Frédéric Clement, Maya Merabishvili, Rob Lavigne, Mario Vaneechoutte
The ability of bacteriophages to kill bacteria is well known, as is their potential use as alternatives to antibiotics. As such, bacteriophages reach high doses locally through infection of their bacterial host in the human body. In this study we assessed the gene expression profile of peripheral blood monocytes from six donors for twelve immunity-related genes (i.e. CD14, CXCL1, CXCL5, IL1A, IL1B, IL1RN, IL6, IL10, LYZ, SOCS3, TGFBI and TNFA) induced by Staphylococcus aureus phage ISP and four Pseudomonas aeruginosa phages (i...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28804607/effects-of-buprenorphine-in-the-adrenal-thyroid-and-cytokine-intra-operative-responses-in-a-rat-model-rattus-norvegicus-a-preliminary-study
#3
Nuno M Félix, Rodolfo O Leal, I Goy-Thollot, Ronald S Walton, Solange A Gil, Luísa M Mateus, Ana S Matos, Maria M R E Niza
OBJECTIVES: Buprenorphine is a common analgesic in experimental research, due to effectiveness and having few side-effects, including a limited influence in the immune and endocrine systems. However, how buprenorphine affects cytokine levels and the adrenal and thyroid response during general anesthesia and surgery is incompletely understood. This study aimed to assess whether buprenorphine modulated significantly those responses in rats submitted to general anesthesia, mechanical ventilation, and surgical insertion of intravascular catheters...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28778099/predictive-clinical-model-of-tumor-response-after-chemoradiation-in-rectal-cancer
#4
Marisa D Santos, Cristina Silva, Anabela Rocha, Carlos Nogueira, Fernando Castro-Poças, António Araujo, Eduarda Matos, Carina Pereira, Rui Medeiros, Carlos Lopes
Survival improvement in rectal cancer treated with neoadjuvant chemoradiotherapy (nCRT) is achieved only if pathological response occurs. Mandard tumor regression grade (TRG) proved to be a valid system to measure nCRT response. The ability to predict tumor response before treatment may significantly have impact the selection of patients for nCRT in rectal cancer. The aim is to identify potential predictive pretreatment factors for Mandard response and build a clinical predictive model design. 167 patients with locally advanced rectal cancer were treated with nCRT and curative surgery...
July 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28775207/development-of-aggressive-pancreatic-ductal-adenocarcinomas-depends-on-granulocyte-colony-stimulating-factor-secretion-in-carcinoma-cells
#5
Michael W Pickup, Philip Owens, Agnieszka E Gorska, Anna Chytil, Fei Ye, Chanjuan Shi, Valerie M Weaver, Raghu Kalluri, Harold L Moses, Sergey V Novitskiy
The survival rate for pancreatic ductal adenocarcinoma (PDAC) remains low. More therapeutic options to treat this disease are needed, for the current standard of care is ineffective. Using an animal model of aggressive PDAC (Kras/p48(TGFβRIIKO)), we discovered an effect of TGFβ signaling in regulation of G-CSF secretion in pancreatic epithelium. Elevated concentrations of G-CSF in PDAC promoted differentiation of Ly6G(+) cells from progenitors, stimulated IL10 secretion from myeloid cells, and decreased T-cell proliferation via upregulation of Arg, iNOS, VEGF, IL6, IL1b from CD11b(+) cells...
August 3, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28770550/association-of-the-haem-oxygenase-1-gene-with-inflammatory-bowel-disease
#6
Zhenwu Lin, Han Hao, John P Hegarty, Tony R Lin, Yunhua Wang, Leonard R Harris, He N Xu, Rongling Wu, Neal J Thomas, Joanna Floros
The anti-inflammatory genes, haem oxygenase 1 (HO-1, HMOX1) rs2071746 (unrestricted model: p = 9.07 × 10-4; recessive model: p = 4.99 × 10-4; multiplicative model: p = 0.0009; and additive model: p = 1.87 × 10-4) and interleukin-10 (IL-10) rs1800872 (dominant model: p = 0.0277) have been associated with paediatric inflammatory bowel disease. The present family-based case-trio study (n = 52) examined HO-1 gene expression in the presence of proinflammatory lipopolysaccharide and tumour necrosis factor-alpha in four B lymphocyte cell lines established from children with inflammatory bowel disease and demonstrated that mutations in IL-10 and IL-10 receptor B reduced HO-1 messenger RNA expression...
August 3, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28767707/murine-gammaherpesvirus-m2-antigen-modulates-splenic-b-cell-activation-and-terminal-differentiation-in-vivo
#7
Shariya Terrell, Samuel H Speck
Murine gammaherpesvirus 68 (MHV68) infection of laboratory strains of mice has provided a tractable small animal model for dissecting gammaherpesvirus pathogenesis. The MHV68 latency associated antigen M2 promotes viral latency establishment in germinal center (GC) B cells and plays an important role in virus infection of plasma cells (PCs), which is linked to virus reactivation. More recently, M2 has been highlighted as a potent immunomodulatory molecule capable of hindering both cell-mediated and humoral immunity to MHV68 infection and subsequent challenges...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28763918/-the-association-between-single-nucleotide-polymorphisms-in-il6-il10-genes-and-the-susceptibility-to-primary-hepatic-carcinoma-in-shunde-district-of-foshan-city
#8
X L Wang, X Ye, X F Yu, H Ding, Q Liu, L Liu, S D Chen
Objective: To investigate the association between single nucleotide polymorphisms (SNP) in cytokine IL6, IL10 genes and the susceptibility to primary hepatic carcinoma(PHC) of Shunde district in Guangdong Province. Methods: Patients from two hospitals in Shunde District of Foshan City were selected from October 2010 to October 2012. Case group inclusion criteria includedprimary liver cancer; local residents of Shunde or living in Shunde for more than 10 years. The control group inclusion criteria included: patients visited ENT, general surgery and physical examination department in the same hospital during the same period; Local residents or living in Shunde for 10 years and above...
August 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28762193/probiotic-features-of-lactic-acid-bacteria-isolated-from-a-diverse-pool-of-traditional-greek-dairy-products-regarding-specific-strain-host-interactions
#9
Georgia Zoumpopoulou, Alexandra Tzouvanou, Eleni Mavrogonatou, Voula Alexandraki, Marina Georgalaki, Rania Anastasiou, Marina Papadelli, Eugenia Manolopoulou, Maria Kazou, Dimitris Kletsas, Konstantinos Papadimitriou, Effie Tsakalidou
The increased consumers' interest on the positive role of food in wellbeing and health underscores the need to determine new probiotic microorganisms. Triggered by the fact that artisanal food products can be a valuable source of novel probiotic strains, 106 lactic acid bacteria, all isolated from traditional Greek dairy products, namely Feta, Kasseri, Xynotyri, Graviera, Formaela, Galotyri, and Kefalotyri cheeses as well as yogurt and milk, were studied for probiotic properties. Based on their survival at pH 2...
July 31, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28761130/lipodystrophy-and-obesity-are-associated-with-decreased-number-of-t-cells-with-regulatory-function-and-pro-inflammatory-macrophage-phenotype
#10
S Berger, G Ceccarini, G Scabia, I Barone, C Pelosini, F Ferrari, S Magno, A Dattilo, L Chiovato, P Vitti, F Santini, M Maffei
BACKGROUND/OBJECTIVES: In lipodystrophy (LD) adipose tissue function to store lipids is impaired, leading to metabolic syndrome, similar to that found in obesity. Emerging evidence links dysmetabolism with disorders of the immune system. Our aim is to investigate whether T-cell populations with regulatory function and monocyte-derived macrophages (MDMs) are affected by LD and obesity. SUBJECTS/METHODS: Blood was collected from 16 LD, 16 obese (OB, BMI>30 kg m(-2)) and 16 healthy normal-weight women (CNT)...
July 10, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28757932/genetic-susceptibility-and-periodontal-disease-a-retrospective-study-on-a-large-italian-sample
#11
L Tettamanti, R M Gaudio, A Iapichino, D Mucchi, A Tagliabue
BACKGROUND: Periodontal disease (PD) is a multifactorial illness in which environment and host interact. The genetic component plays a key role in the onset of PD. In fact the genetic compound can modulate the inflammation of the mucous membranes and the loss of alveolar bone. The genetics of PD is not well understood. Previous studies suggest a strong association between PD occurrence and individual genetic profile. The role of genetic susceptibility could impact on the clinical manifestations of PD, and consequently on prevention and therapy...
January 2017: Oral & Implantology
https://www.readbyqxmd.com/read/28755038/experimental-autoimmune-encephalomyelitis-ameliorated-by-passive-transfer-of-polymerase-1-silenced-mog35-55-lymphatic-node-cells-verification-of-a-novel-therapeutic-approach-in-multiple-sclerosis
#12
R Zilkha-Falb, M Gurevich, A Achiron
In the current study, we present an innovative concept based on the knowledge that enhancing naturally occurring biological mechanisms is effective in preventing neuronal damage and maintaining low disease activity in about 15% of multiple sclerosis (MS) patients presenting the benign type of MS. Recently, we have demonstrated that low disease activity in benign MS is associated with suppression of RNA polymerase 1 (POL1) pathway; therefore, targeting POL1 transcription machinery as a strategy for suppressing active forms of MS is suggested...
July 28, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28752081/absence-of-nucleotide-oligomerization-domain-2-is-associated-with-less-distinct-disease-in-campylobacter-jejuni-infected-secondary-abiotic-il-10-deficient-mice
#13
Markus M Heimesaat, Ursula Grundmann, Marie E Alutis, André Fischer, Stefan Bereswill
Human Campylobacter jejuni-infections are progressively increasing worldwide. Despite their high prevalence and socioeconomic impact the underlying mechanisms of pathogen-host-interactions are only incompletely understood. Given that the innate immune receptor nucleotide-oligomerization-domain-2 (Nod2) is involved in clearance of enteropathogens, we here evaluated its role in murine campylobacteriosis. To address this, we applied Nod2-deficient IL-10(-/-) (Nod2(-/-) IL-10(-/-)) mice and IL-10(-/-) counterparts both with a depleted intestinal microbiota to warrant pathogen-induced enterocolitis...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28752048/myeloid-protein-tyrosine-phosphatase-1b-ptp1b-deficiency-protects-against-atherosclerotic-plaque-formation-in-the-apoe-mouse-model-of-atherosclerosis-with-alterations-in-il10-ampk%C3%AE-pathway
#14
D Thompson, N Morrice, L Grant, S Le Sommer, K Ziegler, P Whitfield, N Mody, H M Wilson, M Delibegović
OBJECTIVE: Cardiovascular disease (CVD) is the most prevalent cause of mortality among patients with Type 1 or Type 2 diabetes, due to accelerated atherosclerosis. Recent evidence suggests a strong link between atherosclerosis and insulin resistance due to impaired insulin receptor (IR) signaling. Moreover, inflammatory cells, in particular macrophages, play a key role in pathogenesis of atherosclerosis and insulin resistance in humans. We hypothesized that inhibiting the activity of protein tyrosine phosphatase 1B (PTP1B), the major negative regulator of the IR, specifically in macrophages, would have beneficial anti-inflammatory effects and lead to protection against atherosclerosis and CVD...
August 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28751735/aggregated-transthyretin-is-specifically-packaged-into-placental-nano-vesicles-in-preeclampsia
#15
Mancy Tong, Shi-Bin Cheng, Qi Chen, Joana DeSousa, Peter R Stone, Joanna L James, Lawrence W Chamley, Surendra Sharma
In preeclampsia, the serum levels of transthyretin, a carrier protein for thyroxine, are elevated. Transthyretin isolated from preeclamptic serum is also aggregated and can induce preeclampsia-like symptoms in pregnant IL10(-/-) mice. Using western blotting, immunofluorescence, ELISA and qRT-PCR, we investigated the production of transthyretin by preeclamptic placentae and whether transthyretin is carried into the maternal circulation via placental extracellular vesicles. Both total and aggregated transthyretin were present in higher levels in preeclamptic placentae compared to normotensive placentae (p < 0...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28750137/polymorphism-of-il10-il4-ctla4-and-dao-genes-in-cross-reactive-nonsteroidal-anti-inflammatory-drug-hypersensitivity
#16
Luciana Mabel Ferreira Vasconcelos, Raphael de Oliveira Rodrigues, Andressa Almeida Albuquerque, Gabrielle Dantheias Barroso, Greyce Luri Sasahara, Janaira Fernandes Severo Ferreira, Eudiana Vale Francelino, Cynthia Chester Cardoso, Silvia Helena Barem Rabenhorst, Thereza Lúcia Prata de Almeida, Aparecida Tiemi Nagao-Dias
Our aim was to evaluate genetic polymorphism of molecules involved in immunoregulatory/allergic processes in patients who presented with cutaneous hypersensitivity caused by chemically unrelated nonsteroidal anti-inflammatory drugs. Polymorphisms at IL10 (-1082 G>A), IL4 (-589 C>T), CTLA4 (+49A>G), and DAO (+8956 C>G) genes were studied in 55 cases and 97 controls by the polymerase chain reaction-restriction fragment length polymorphism technique. With regard to the polymorphism at IL10 -1082, higher frequencies of the AG genotype (57% vs 39%) and G allele carriers (70% vs 48%) were found among the patients, indicating a risk effect (odds ratio [OR] = 2...
July 27, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28734591/increased-inflammatory-effect-of-electronegative-ldl-and-decreased-protection-by-hdl-in-type-2-diabetic-patients
#17
Montserrat Estruch, Inka Miñambres, Jose Luis Sanchez-Quesada, Marta Soler, Antonio Pérez, Jordi Ordoñez-Llanos, Sonia Benitez
BACKGROUND AND AIMS: Type 2 diabetic patients have an increased proportion of electronegative low-density lipoprotein (LDL(-)), an inflammatory LDL subfraction present in blood, and dysfunctional high-density lipoprotein (HDL). We aimed at examining the inflammatory effect of LDL(-) on monocytes and the counteracting effect of HDL in the context of type 2 diabetes. METHODS: This was a cross-sectional study in which the population comprised 3 groups (n = 12 in each group): type 2 diabetic patients with good glycaemic control (GC-T2DM patients), type 2 diabetic patients with poor glycaemic control (PC-T2DM), and a control group...
July 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28728880/genetic-adaptation-to-historical-pathogen-burdens
#18
Johannes W Fedderke, Robert E Klitgaard, Valerio Napolioni
Historical pathogen burdens are examined as possible triggers for genetic adaptation. Evidence of adaptation emerges for the acid phosphatase locus 1 (ACP1), interleukin-6 (IL6), interleukin-10 (IL10 ), human leukocyte antigen (HLA) polymorphisms, along with a measure of heterozygosity over 783 alleles. Results are robust to controlling for the physical and historical environment humans faced, and to endogeneity of the historical pathogen burden measure. The present study represents a proof-of-concept which may pave the way to the analysis of future aggregate measures coming from whole-genome sequencing/genotyping data...
July 17, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28727656/potential-association-of-il1b-polymorphism-with-iron-deficiency-risk-in-childhood-helicobacter-pylori-infection
#19
Szu-Ta Chen, Yen-Hsuan Ni, Shing-Hwa Liu
OBJECTIVE: Helicobacter pylori (H. pylori) infection occurs predominantly in childhood. Host immune response gene polymorphism is reported to affect the susceptibility to H. pylori infection and the outcome of H. pylori-related gastric cancer. However, not all H. pylori-infected patients exhibit iron deficiency. The relationship between host genetic polymorphisms and iron deficiency mediated by H. pylori infection is not well understood. METHODS: Subjects (n = 644) from the general population aged 10 to 18 years were divided into two groups based on serology testing for anti-H...
July 19, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28715406/genetic-polymorphisms-of-the-il6-and-nod2-genes-are-risk-factors-for-inflammatory-reactions-in-leprosy
#20
Carolinne Sales-Marques, Cynthia Chester Cardoso, Lucia Elena Alvarado-Arnez, Ximena Illaramendi, Anna Maria Sales, Mariana de Andréa Hacker, Mayara Garcia de Mattos Barbosa, José Augusto da Costa Nery, Roberta Olmo Pinheiro, Euzenir Nunes Sarno, Antonio Guilherme Pacheco, Milton Ozório Moraes
The pathways that trigger exacerbated immune reactions in leprosy could be determined by genetic variations. Here, in a prospective approach, both genetic and non-genetic variables influencing the amount of time before the development of reactional episodes were studied using Kaplan-Meier survival curves, and the genetic effect was estimated by the Cox proportional-hazards regression model. In a sample including 447 leprosy patients, we confirmed that gender (male), and high bacillary clinical forms are risk factors for leprosy reactions...
July 2017: PLoS Neglected Tropical Diseases
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