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https://www.readbyqxmd.com/read/27914470/symptom-profiles-and-inflammatory-markers-in-moderate-to-severe-copd
#1
Huong Q Nguyen, Jerald R Herting, Kenneth C Pike, Sina A Gharib, Gustavo Matute-Bello, Soo Borson, Ruth Kohen, Sandra G Adams, Vincent S Fan
BACKGROUND: Physical and psychological symptoms are the hallmark of patients' subjective perception of their illness. The purpose of this analysis was to determine if patients with COPD have distinctive symptom profiles and to examine the association of symptom profiles with systemic biomarkers of inflammation. METHODS: We conducted latent class analyses of three physical (dyspnea, fatigue, and pain) and two psychological symptoms (depression and anxiety) in 302 patients with moderate to severe COPD using baseline data from a longitudinal observational study of depression in COPD...
December 3, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27912071/classical-and-alternative-macrophages-have-impaired-function-during-acute-and-chronic-hiv-1-infection
#2
Leonardo J Galvão-Lima, Milena S Espíndola, Luana S Soares, Fabiana A Zambuzi, Maira Cacemiro, Caroline Fontanari, Valdes R Bollela, Fabiani G Frantz
OBJECTIVES: Three decades after HIV recognition and its association with AIDS development, many advances have emerged - especially related to prevention and treatment. Undoubtedly, the development of Highly Active Antiretroviral Therapy (HAART) dramatically changed the future of the syndrome that we know today. In the present study, we evaluate the impact of HAART on macrophage function and its relevance to HIV pathogenesis. METHODS: PBMCs were isolated from blood samples and monocytes (CD14+ cells) were purified...
November 29, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27859014/cord-blood-streptococcus-pneumoniae-specific-cellular-immune-responses-predict-early-pneumococcal-carriage-in-high-risk-infants-in-papua-new-guinea
#3
Jacinta P Francis, Peter C Richmond, Deborah Strickland, Susan L Prescott, William S Pomat, Audrey Michael, Marie A Nadal-Sims, Catherine J Edwards-Devitt, Patrick G Holt, Deborah Lehmann, Anita H J van den Biggelaar
Background In areas where Streptococcus pneumoniae is highly endemic, infants experience very early pneumococcal colonization of the upper respiratory tract with carriage often persisting into adulthood. We aimed to explore whether newborns in high risk areas have pre-existing pneumococcal-specific cellular immune responses that may affect early pneumococcal acquisition. Methods Cord blood mononuclear cells (CBMC) of 84 Papua New Guinean (PNG; high endemic) and 33 Australian (AUS; low endemic) newborns were stimulated in vitro with detoxified pneumolysin (dPly) or pneumococcal surface protein A (PspA; families 1 and 2) and compared for cytokine responses...
November 18, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27829467/intracerebral-transplantation-of-interleukin-13-producing-mesenchymal-stem-cells-limits-microgliosis-oligodendrocyte-loss-and-demyelination-in-the-cuprizone-mouse-model
#4
Debbie Le Blon, Caroline Guglielmetti, Chloé Hoornaert, Alessandra Quarta, Jasmijn Daans, Dearbhaile Dooley, Evi Lemmens, Jelle Praet, Nathalie De Vocht, Kristien Reekmans, Eva Santermans, Niel Hens, Herman Goossens, Marleen Verhoye, Annemie Van der Linden, Zwi Berneman, Sven Hendrix, Peter Ponsaerts
BACKGROUND: Promoting the neuroprotective and repair-inducing effector functions of microglia and macrophages, by means of M2 polarisation or alternative activation, is expected to become a new therapeutic approach for central nervous system (CNS) disorders in which detrimental pro-inflammatory microglia and/or macrophages display a major contribution to the neuropathology. In this study, we present a novel in vivo approach using intracerebral grafting of mesenchymal stem cells (MSC) genetically engineered to secrete interleukin 13 (IL13-MSC)...
November 9, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27770434/pre-diagnostic-circulating-inflammation-markers-and-endometrial-cancer-risk-in-the-prostate-lung-colorectal-and-ovarian-cancer-plco-screening-trial
#5
Britton Trabert, Ronald C Eldridge, Ruth M Pfeiffer, Meredith S Shiels, Troy J Kemp, Chantal Guillemette, Patricia Hartge, Mark E Sherman, Louise A Brinton, Amanda Black, Anil K Chaturvedi, Allan Hildesheim, Sonja I Berndt, Mahboobeh Safaeian, Ligia Pinto, Nicolas Wentzensen
Inflammation is proposed to increase risk of developing endometrial cancer, but few prospective epidemiologic studies have investigated the relationship between circulating inflammation markers and endometrial cancer risk. In a nested case-control study within the PLCO Screening Trial we measured serum levels of 64 inflammation-related biomarkers in 284 incident endometrial cancer cases and 284 matched controls. Using multivariable logistic regression inflammation markers were evaluated individually and combined into a cross-validated inflammation score...
October 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27725770/genetic-dissection-of-host-immune-response-in-pneumonia-development-and-progression
#6
Tamara V Smelaya, Olesya B Belopolskaya, Svetlana V Smirnova, Artem N Kuzovlev, Viktor V Moroz, Arkadiy M Golubev, Noel A Pabalan, Lyubov E Salnikova
The role of host genetic variation in pneumonia development and outcome is poorly understood. We studied common polymorphisms in the genes of proinflammatory cytokines (IL6 rs1800795, IL8 rs4073, IL1B rs16944), anti-inflammatory cytokines (IL10 rs1800896, IL4 rs2243250, IL13 rs20541) and toll-like receptors (TLR2 rs5743708 and rs4696480, TLR4 rs4986791, TLR9 rs352139, rs5743836 and rs187084) in patients with community-acquired pneumonia (CAP) (390 cases, 203 controls) and nosocomial pneumonia (355 cases, 216 controls)...
October 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27708669/genetic-susceptibility-to-allergic-bronchopulmonary-aspergillosis-in-asthma-a-genetic-association-study
#7
Nicola L D Overton, David W Denning, Paul Bowyer, Angela Simpson
BACKGROUND: In patients with asthma, the fungus Aspergillus fumigatus can cause allergic bronchopulmonary aspergillosis (ABPA). Familial ABPA is reported, and some genetic factors have been associated with the disease, however, these are small studies (n ≤ 38) and do not explain all cases of ABPA. METHODS: We analysed SNPs in 95 ABPA patients, comparing frequencies to 152 atopic asthmatic and 279 healthy controls. Twenty two genes were selected from literature, and 195 tagging SNPs were analysed for genetic association with ABPA using logistic regression corrected for multiple testing...
2016: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/27708223/differential-effects-of-peptidoglycan-on-colorectal-tumors-and-intestinal-tissue-post-pelvic-radiotherapy
#8
Gen Li, Anqing Wu, Dandan Qi, Fengmei Cui, Yanan Zeng, Fang Xie, Hongya Wu, Yongping Gu, Qiu Chen, Xueguang Zhang
Immediate medical intervention is required after pelvic tumor radiotherapy to protect the radiosensitive intestine and also to mitigate tumor growth. Toll-like receptors (TLRs) have been shown to promote tissue repair processes. Here, we analyzed the effect observed upon combining the TLR2 agonist, peptidoglycan (PGN), with radiation therapy on tumors as well as intestinal tissue, both in vitro and in vivo. In contrast to radiotherapy alone, PGN when combined with ionizing radiation (IR) elicited enhanced antitumor effects and also reduced the IR-induced intestinal damage...
September 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27639807/rectal-delivery-of-a-dnazyme-that-specifically-blocks-the-transcription-factor-gata3-and-reduces-colitis-in-mice
#9
Vanessa Popp, Katharina Gerlach, Stefanie Mott, Agnieszka Turowska, Holger Garn, Raja Atreya, Hans-Anton Lehr, I-Cheng Ho, Harald Renz, Benno Weigmann, Markus F Neurath
BACKGROUND & AIMS: GATA3 is a transcription factor that regulates T-cell production of cytokines. We investigated the role of GATA3 in development of colitis in mice. METHODS: We performed quantitative polymerase chain reaction and immunofluorescence analyses of colon tissues from patients with Crohn's disease (n = 61) or ulcerative colitis (UC, n = 74) or from patients without inflammatory bowel diseases (n = 22), to measure levels of GATA3. Colitis was induced by administration of oxazolone or 2,4,6-trinitrobenzenesulfonic acid to control mice, mice with T-cell-specific deletion of GATA3, and mice with deletion of tumor necrosis factor receptor (TNFR) 1 and TNFR2 (TNFR double knockouts); some mice were given a GATA3-specific DNAzyme (hgd40) or a control DNAzyme via intrarectal administration, or systemic injections of an antibody to TNF before or during sensitization and challenge phase of colitis induction...
September 14, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27639070/th1-th17-and-th2-imbalance-in-mesenchymal-stem-cells-of-adult-patients-with-atopic-dermatitis-at-the-origin-of-the-problem
#10
M Orciani, A Campanati, M Caffarini, G Ganzetti, V Consales, G Lucarini, A Offidani, R Di Primio
BACKGROUND: Atopic dermatitis (AD) is a chronic, and inflammatory disease characterized by a marked imbalance of Th2 versus Th1-Th17 in the early phase of AD, whereas a mixed Th1/Th2 pattern of inflammation is usually found at chronic stage. These features have not been extensively evaluated in undifferentiated skin cells of patients affected by atopic dermatitis (AD). OBJECTIVE: the relative expression of 22 genes encoding for Th1, Th2, and Th17 cytokines and the secretion of the corresponding proteins have been analyzed in Cutaneous Mesenchymal Stem Cells (MSCs) isolated from skin of AD patients (AD-MSCs) to evaluate their role on AD onset...
September 17, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27624002/allergy-specific-phenome-wide-association-study-for-immunogenes-in-turkish-children
#11
Sefayet Karaca, Ersoy Civelek, Mehmet Karaca, Umit M Sahiner, Riza K Ozgul, Can N Kocabas, Renato Polimanti, Bülent E Sekerel
To dissect the role of immunogenetics in allergy and asthma, we performed a phenome-wide association study in 974 Turkish children selected from a cross-sectional study conducted using ISAAC (International Study of Asthma and Allergies in Children) Phase II tools. We investigated 9 loci involved in different immune functions (ADAM33, ADRB2, CD14, IL13, IL4, IL4R, MS4A2, SERPINE1, and TNF) with respect to 116 traits assessed through blood tests, hypertonic saline challenge tests, questionnaires, and skin prick tests...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27621813/early-infiltration-of-p40il12-ccr7-cd11b-cells-is-critical-for-fibrosis-development
#12
Tarcio Teodoro Braga, Matheus Correa-Costa, Hatylas Azevedo, Reinaldo Correia Silva, Mario Costa Cruz, Maira Estanislau Soares Almeida, Meire Ioshie Hiyane, Carlos Alberto Moreira-Filho, Marinilce Fagundes Santos, Katia Regina Perez, Iolanda Midea Cuccovia, Niels Olsen Saraiva Camara
INTRODUCTION: Macrophages are heterogeneous and thus can be correlated with distinct tissue outcomes after injury. Conflicting data have indicated that the M2-related phenotype directly triggers fibrosis. Conversely, we hypothesize here that the inflammatory milieu provided by early infiltration of pro-inflammatory macrophages dictates tissue scarring after injury. METHODS AND RESULTS: We first determined that tissue-localized macrophages exhibit a pro-inflammatory phenotype (p40IL12(+)CCR7(+)CD11b(+)) during the early phase of a chronic injury model, in contrast to a pro-resolving phenotype (Arg1(+)IL10(+)CD206(+)CD11b(+)) at a later stage...
September 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27621809/intratracheal-myriocin-enhances-allergen-induced-th2-inflammation-and-airway-hyper-responsiveness
#13
Ramakrishna Edukulla, Kira Lee Rehn, Bo Liu, Jaclyn W McAlees, Gurjit K Hershey, Yui Hsi Wang, Ian Lewkowich, Andrew W Lindsley
INTRODUCTION: Ceramide is the central substrate of sphingolipid metabolism and plays a key role in cellular signal transduction pathways, regulating apoptosis, differentiation, and chemotaxis. Alterations in airway ceramide levels are observed in multiple pulmonary diseases and recent human genetic association studies have linked dysregulation of sphingolipid regulatory genes with asthma pathogenesis. METHODS: Utilizing myriocin, a potent inhibitor of sphingolipid synthesis, we evaluated the immune regulatory role of de novo ceramide generation in vitro and in vivo...
September 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27602597/tributyltin-exposure-alters-cytokine-levels-in-mouse-serum
#14
Shanieek Lawrence, Samuel T Pellom, Anil Shanker, Margaret M Whalen
Tributyltin (TBT), a toxic environmental contaminant, has been widely utilized for various industrial, agricultural and household purposes. Its usage has led to a global contamination and its bioaccumulation in aquatic organisms and terrestrial mammals. Previous studies suggest that TBT has debilitating effects on the overall immune function of animals, rendering them more vulnerable to diseases. TBT (at concentrations that have been detected in human blood) alters secretion of inflammatory cytokines from human lymphocytes ex vivo...
September 7, 2016: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/27593106/cholangiocarcinoma-stem-like-subset-shapes-tumor-initiating-niche-by-educating-associated-macrophages
#15
Chiara Raggi, Margherita Correnti, Antonio Sica, Jesper B Andersen, Vincenzo Cardinale, Domenico Alvaro, Giovanna Chiorino, Elisa Forti, Shannon Glaser, Gianfranco Alpini, Annarita Destro, Francesca Sozio, Luca Di Tommaso, Massimo Roncalli, Jesus M Banales, Cédric Coulouarn, Luis Bujanda, Guido Torzilli, Pietro Invernizzi
BACKGROUND & AIMS: A therapeutically challenging subset of cells, termed cancer stem cells (CSCs) are responsible for cholangiocarcinoma (CCA) clinical severity. Presence of tumor-associated macrophages (TAMs) has prognostic significance in CCA and other malignancies. Thus, we hypothesized that CSCs may actively shape their tumor-supportive immune niche. METHODS: CCA cells were cultured in 3D conditions to generate spheres. CCA sphere analysis of in vivo tumorigenic-engraftment in immune-deficient mice and molecular characterization was performed...
September 1, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27589565/gata3-expression-correlates-with-poor-prognosis-and-tumor-associated-macrophage-infiltration-in-peripheral-t-cell-lymphoma
#16
Wei Zhang, Zi Wang, Yunping Luo, Dingrong Zhong, Yufeng Luo, Daobin Zhou
Peripheral T cell lymphoma (PTCL) is an aggressive form of non-Hodgkin's lymphoma characterized by a poor prognosis. In this study, we examined the prognostic value of two T-cell-specific transcription factors, GATA3 and T-bet, in PTCL, uncovered the pathogenesis of PTCL, and investigated new PTCL therapeutic targets. Samples from 109 PTCL patients were examined for expression of GATA3, T-bet and CD68. High GATA3 expression correlated with poor survival in PTCL patients and with tumor-associated macrophage (TAM) infiltration, as indicated by the presence of CD68-positive cells...
August 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27576126/human-circulating-group-2-innate-lymphoid-cells-can-express-cd154-and-promote-ige-production
#17
Laura Maggi, Gianni Montaini, Alessio Mazzoni, Beatrice Rossettini, Manuela Capone, Maria Caterina Rossi, Veronica Santarlasci, Francesco Liotta, Oliviero Rossi, Oreste Gallo, Raffaele De Palma, Enrico Maggi, Lorenzo Cosmi, Sergio Romagnani, Francesco Annunziato
BACKGROUND: Protection against helminths consists of adaptive responses by TH2 cells and innate responses by group 2 innate lymphoid cells (ILC2s), with these latter being well characterized in mice but less so in human subjects. OBJECTIVE: We sought to characterize human circulating ILC2s and compare their functional profile with that of autologous TH2 cells. METHODS: Circulating ILC2s and TH2 cells were isolated by means of fluorescence-activated cell sorting and magnetic cell sorting and expanded in vitro...
July 27, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27561723/asthma-and-rhinitis-have-different-genetic-profiles-for-il13-il17a-and-gstp1-polymorphisms
#18
E P Resende, A Todo-Bom, C Loureiro, A Mota Pinto, B Oliveiros, L Mesquita, H C Silva
BACKGROUND: Asthma and rhinitis have a complex etiology, depending on multiple genetic and environmental risk factors. An increasing number of susceptibility genes are currently being identified, but the majority of reported associations have not been consistently replicated across populations of different genetic backgrounds. PURPOSE: To evaluate whether polymorphisms of IL4R (rs1805015), IL13 (rs20541), IL17A (rs2275913) and GSTP1 (rs1695) genes are associated with rhinitis and/or asthma in adults of Portuguese ancestry...
August 22, 2016: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/27547823/il4ra-on-lymphatic-endothelial-cells-promotes-t-cell-egress-during-sclerodermatous-graft-versus-host-disease
#19
Katia Urso, David Alvarez, Viviana Cremasco, Kelly Tsang, Angelo Grauel, Robert Lafyatis, Ulrich H von Andrian, Joerg Ermann, Antonios O Aliprantis
Systemic sclerosis (SSc) is a potentially fatal autoimmune disorder with limited therapeutic options. Sclerodermatous graft versus host disease (sclGvHD), induced by transfer of B10.D2 splenocytes into BALB/c Rag2(-/-) mice, models an inflammatory subset of SSc characterized by a prominent IL13-induced gene expression signature in the skin. Host mice deficient in IL4RA, a subunit of the type II IL4/IL13 receptor, are protected from sclGvHD. While IL4RA has a well-established role in Th2 differentiation and alternative macrophage activation, we report here a previously unappreciated function for IL4RA in lymphatic endothelial cells (LECs): regulation of activated T cell egress...
August 4, 2016: JCI Insight
https://www.readbyqxmd.com/read/27538858/demodex-musculi-infestation-in-genetically-immunomodulated-mice
#20
Peter C Smith, Caroline J Zeiss, Amanda P Beck, Jodi A Scholz
Demodex musculi, a prostigmatid mite that has been reported infrequently in laboratory mice, has been identified with increasing frequency in contemporary colonies of immunodeficient mice. Here we describe 2 episodes of D. musculi infestation with associated clinical signs in various genetically engineered mouse strains, as well as treatment strategies and an investigation into transmissibility and host susceptibility. The first case involved D. musculi associated with clinical signs and pathologic lesions in BALB/c-Tg(DO11...
2016: Comparative Medicine
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